CN103096482A - Wireless communication device and communication operation coordination method - Google Patents

Abstract

The invention provides at least one wireless communication device and a communication operation coordination method, wherein the wireless communication device comprises a baseband chip, the baseband chip monitors a first channel related to a first service network to receive a called call from the first service network or measure a candidate cell located in the first service network, and performs wireless transceiving with a second service network through a second channel. In addition, the baseband chip is used for keeping the wireless transceiving uninterrupted by the monitoring of the first channel when the wireless transceiving is executed for the predetermined program. The present invention can coordinate and manage the operation among a plurality of wireless communication modules related to a multi-user identification card, so that the wireless transceiving corresponding to the second wireless communication module is prevented from being interrupted by the monitoring of the first channel corresponding to the first wireless module when the wireless transceiving corresponding to the second wireless communication module is executed aiming at the predetermined program.

Description

Wireless communication device and communication operation coordination method

technical field

The present invention relates to allocation of radio frequency resources for wireless communications, and more particularly to allocation of radio frequency resources when communicating with multiple serving networks.

Background technique

As the global demand for ubiquitous computing and networks has gradually increased, many wireless communication technologies have emerged accordingly, such as: Global System for Mobile Communications (Global System for Mobilecommunications, GSM) technology, General Packet Radio Service (General Packet Radio Service) , GPRS) technology, Enhanced Data rates for Global Evolution (EDGE) technology, Universal Mobile Telecommunications System (UMTS) technology, Code Division Multiple Access-2000 (Code Division Multiple Access 2000, CDMA -2000) technology, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (LTE) technology, Long Term Evolution-Advanced (LTE-A) technology, and Time-Division Long-Term Evolution (Time-Division LTE, TD-LTE) technology, etc. Generally speaking, a mobile phone supports only one wireless communication technology, and provides flexibility for users to communicate anytime and anywhere through the supported wireless communication technology. Especially in today's business world, mobile phones have become an indispensable and convenient tool for doing business. For business people, because they still need to deal with business affairs when they leave the office or even go abroad, they generally choose to have an additional business-specific mobile phone. Alternatively, for other users, it may be an option to have an additional mobile phone in order to save/control the cost of wireless services (including voice calls and/or data service charges). But having two or more mobile phones at the same time is a troublesome thing, especially the user needs to carry many mobile phones with him, and also needs to switch between different mobile phones frequently. In order to allow users to have multiple user numbers more conveniently, dual-card or multi-card mobile phones have been introduced, which may have one or more wireless communication modules that can support the same or different communication technologies (for example, can support GSM and UMTS mobile phones) use different subscriber numbers for wireless transmission and reception. A dual-card or multi-card mobile phone can allow multiple wireless communication modules to operate simultaneously, and can receive a call from any wireless communication module with its corresponding user number at the same time. Therefore, users can use dual-card or multi-card mobile phones to distinguish business and private purposes according to different user numbers and bills, or use additional user numbers for roaming purposes when going abroad.

For a dual-card or multi-card mobile phone with only a single transceiver, only one wireless communication module can use the transceiver to obtain network resources at a time, while the other wireless communication module cannot access the transceiver. Specifically, a wireless communication module that cannot access a transceiver has no way of knowing that the transceiver is currently occupied by another wireless communication module because these wireless communication modules operate independently and lack a proper communication mechanism with each other. For example, the only transceiver of a dual-card mobile phone is occupied by the first wireless communication module to perform packet-switched (Packet-Switched, PS) data services, such as: Multimedia Messaging Service (Multimedia Messaging Service, MMS), real-time message service (InstantMessaging Service, IMS), file transfer or web browsing through File Transfer Protocol (File Transfer Protocol, FTP), etc. At this time, when the service network related to the second wireless communication module initiates a mobile terminal (Mobile-Terminated, MT) call for the second wireless communication module, the second wireless communication module may miss the connection because it cannot access the transceiver. In this MT call, and because the second wireless communication module cannot receive the paging message from the serving network, it cannot know the entry of this MT call.

Therefore, there is an urgent need for a more flexible way to manage operations between multiple wireless communication modules related to multiple subscriber identity cards, so that the second wireless communication module performs packet exchange data in the first wireless module The MT call from the serving network side can still be received while serving.

Contents of the invention

To this end, the present invention provides at least one wireless communication device and a communication operation coordination method.

An embodiment of the present invention provides a wireless communication device, the wireless communication device includes a baseband chip, used to monitor (monitor) a first channel related to a first service network to receive a called call from the first service network Or measure a plurality of candidate cells (cells) located in the first service network, perform wireless transmission and reception with a second service network through a second channel, and when the wireless transmission and reception is performed for a predetermined procedure, keep the above Wireless transceiving is not interrupted by the above-mentioned monitoring of the first channel.

Another embodiment of the present invention provides a method for coordinating communication operations, which is suitable for coordinating communication operations with different service networks in a wireless communication device. The above communication operation coordination method includes the following steps: monitoring the first channel related to the first service network to receive a called call from the first service network or to measure a plurality of candidate cells located in the first service network; performing wireless transmission and reception with the second service network through two channels; and when the wireless transmission and reception is performed according to a predetermined procedure, keep the wireless transmission and reception from being interrupted by the monitoring of the first channel.

Utilizing the present invention can coordinate and manage the work between multiple wireless communication modules related to multiple subscriber identification cards, so that when the wireless transmission and reception corresponding to the second wireless communication module is executed for a predetermined program, it is prevented from being corresponding to the first wireless communication module. Monitoring of the first channel of the module is interrupted.

With regard to other additional features and advantages of the present invention, those skilled in the art can make some changes according to the wireless communication device and communication operation coordination method disclosed in the implementation method of this case without departing from the spirit and scope of the present invention. obtained with retouching.

Description of drawings

Fig. 1 is a schematic diagram of a mobile communication environment according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a hardware architecture of a mobile station according to an embodiment of the invention.

Fig. 3 is a schematic diagram of a hardware architecture of a mobile station according to another embodiment of the present invention.

FIG. 4 is a schematic diagram of a hardware architecture of a mobile station equipped with a single antenna and coupled with two subscriber identification cards according to another embodiment of the present invention.

FIG. 5 is a schematic diagram showing call control of a mobile station receiving a called call in the GSM/GPRS/EDGE system.

FIG. 6 is a schematic diagram showing an example of the packet access procedure of the GPRS/EDGE system.

7 is a schematic diagram showing channel scheduling for a mobile station monitoring a paging channel of a 3G circuit handover to perform a 2G packet access procedure according to an embodiment of the present invention.

FIG. 8 is a schematic diagram showing channel scheduling for a mobile station in 2G packet transmission mode to monitor a paging channel for 3G circuit switching according to an embodiment of the present invention.

FIG. 9 is a schematic diagram showing an example of a packet cell change order procedure performed by a mobile station associated with a GSM/GPRS/EDGE system and in an idle mode.

FIG. 10A and FIG. 10B are schematic diagrams showing an example of a cell change order procedure performed by a mobile station associated with a GSM/GPRS/EDGE system and in an online mode.

FIG. 11 is a schematic diagram showing an example of a PS handover procedure performed by a mobile station associated with a GPRS/EDGE system.

FIG. 12 is a schematic diagram showing an example of a mobile station associated with the UMTS system performing a connection establishment procedure.

FIG. 13 shows a channel scheduling procedure for a mobile station monitoring a 2G paging channel to execute a 3G connection establishment procedure according to an embodiment of the present invention.

FIG. 14 is a schematic diagram showing an example of a mobile station associated with the UMTS system performing a hard handover procedure.

FIG. 15 shows channel scheduling for a mobile station monitoring a 2G paging channel to perform a 3G hard handover procedure according to an embodiment of the present invention.

Fig. 16 is a schematic diagram of the software architecture of the mobile station according to an embodiment of the present invention.

FIG. 17 is a flowchart of a method for coordinating the operations of the protocol stack processing modules 1610 and 1620 by the arbitration module 1630 according to an embodiment of the present invention.

18A and 18B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 7 .

19A and 19B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 8 .

20A and 20B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 13 .

21A-21C are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 15 .

Fig. 22 is a schematic diagram of the software architecture of the mobile station according to another embodiment of the present invention.

FIG. 23 is a flowchart of a method for coordinating operations by the protocol stack processing modules 2210 and 2220 according to an embodiment of the present invention.

FIG. 24 is a message sequence diagram showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 7 .

FIG. 25 is a message sequence diagram showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 8 .

26A and 26B are message sequence diagrams showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 13 .

27A and 27B are message sequence diagrams showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 15 .

Detailed ways

The following description is the best way to implement the present invention, the purpose is to illustrate the spirit of the present invention rather than to limit the protection scope of the present invention, the scope of the present invention is defined by the claims. It should be understood that the following embodiments may be implemented by software, hardware, firmware or any combination of the above.

FIG. 1 is a schematic diagram of a wireless communication environment according to an embodiment of the present invention. The wireless communication environment 100 includes a mobile station (Mobile Station, MS) 110 and service networks 120 and 130 . The mobile station 110 can use different subscriber numbers to perform wireless communication with the service networks 120 and 130 after camping on the two cells. Each cell can be managed by a base station (node-B), base station (Base Station, BS), advanced base station (Advanced BS, ABS), or enhanced base station (Enhanced BS, EBS). However, the mobile station 110 can only communicate with one of the serving networks 120 and 130 at a time. The operation of the service networks 120 and 130 can respectively follow GSM, GPRS, EDGE, Wideband Code Division Multiple Access (WCDMA), CDMA-2000, TD-SCDMA, WiMAX, LTE, LTE-A, and TD- Either of the LTE technologies. The above-mentioned user numbers are provided by two subscriber identification cards, and the specifications of these subscriber identification cards follow the standard of the wireless communication technology used by the service networks 120 and 130 . For example, the service network 120 can be a GSM/GPRS/EDGE system, and correspondingly, one of the subscriber identity cards is a Subscriber Identity Module (SIM) card; the service network 130 can be a WCDMA/LTE/TD- In the LTE system, correspondingly, another subscriber identity card is a universal subscriber identity module (Universal SIM, USIM) card. Alternatively, the service network 120 can be a CDMA-2000 system, and correspondingly, one of the subscriber identity cards is a removable user identity module (Removable UserIdentity Module, R-UIM) card; the service network 130 can be a TD-SCDMA system, Correspondingly, the other subscriber identity card is a synchronous code division multiple access subscriber identity module (CDMA SIM, CSIM) card.

The mobile station 110 can wirelessly access network resources, such as: send and receive emails, browse the web, upload/download files, send and receive real-time messages, perform streaming video, or conduct network calls (Voice over IP, VoIP), etc., or dial wireless phone. In addition, a host computer or a notebook computer can also be connected/coupled to the mobile station 110 , and then access network resources through the mobile station 110 . In the GSM system, the mobile station 110 can operate in an idle mode or a dedicated mode with an inserted SIM card. When operating in the idle mode, the mobile station 110 will search or measure the cells in the specific service network to find out the signal quality of the broadcast control channel (Broadcast Control Channel, BCCH) is better, or the broadcast control channel with a specific cell The channel is synchronized, and then the mobile station 110 is ready to perform a random access procedure on a random access channel (Random Access Channel, RACH) to request configuration of a dedicated channel. When operating in the dedicated mode, the mobile station 110 will occupy the physical channel and try to synchronize with the physical channel, then establish multiple logical channels, and perform handover operations among the multiple logical channels. Since the mobile station 110 is equipped with one or more USIM cards, the mobile station 110 can operate in an idle mode or an online mode in WCDMA or TD-SCDMA systems with the inserted USIM cards.

FIG. 2 is a schematic diagram of a hardware architecture of a mobile station according to an embodiment of the invention. The mobile station 200 is equipped with a baseband chip 210 and a single radio frequency module 220 coupled to an antenna 230 . The baseband chip 210 may include multiple hardware devices to perform baseband signal processing, including analog to digital conversion (analog to digital conversion, ADC)/digital to analog conversion (digital to analog conversion, DAC), gain (gain) adjustment, modulation and demodulation, and encoding/decoding etc. The radio frequency module 220 can receive a radio frequency wireless signal from the antenna 230, and convert the radio frequency wireless signal into a baseband signal for further processing by the baseband chip 210, or receive a baseband signal from the baseband chip 210, and convert the baseband signal into a radio frequency wireless signal for passing The antenna 230 transmits. The radio frequency module 220 may also include multiple hardware devices to perform the above radio frequency conversion. For example, the radio frequency module 220 may include a mixer (mixer) to multiply the baseband signal by an oscillating carrier in the radio frequency of the wireless communication system, Wherein the radio frequency can be 900 megahertz (MHz), 1800 megahertz or 1900 megahertz used by the GSM system, or 900 megahertz, 1900 megahertz or 2100 megahertz used by the WCDMA system, or other radio access technologies ( Radio Access Technology, RAT) standards. As shown in Figure 2, the subscriber identification cards 10 and 20 are respectively inserted into two slots of the mobile station 200, and the mobile station 200 also includes a dual-card controller 240, which is coupled or connected to the baseband chip 210 and the subscriber identification card 10 and the mobile station 200. Between 20. The dual-card controller 240 drives the user with the same or different voltage levels through a power management integrated chip (Power Management Integrated Chip, PMIC) (not shown) and a battery (not shown) according to the requirements of the subscriber identification cards 10 and 20 The identification cards 10 and 20, wherein the voltage level required by each subscriber identification card is determined during the initiation process. The baseband chip 210 can read and write data to the SIM card 10 or 20 through the dual-card controller 240 . In addition, the dual-card controller 240 can selectively send a clock signal, a reset signal, and/or a data signal to the SIM cards 10 and 20 according to the command sent by the baseband chip 210 . The baseband chip 210 can support one or more of GSM/GPRS/EDGE, WCDMA, CDMA-2000, WiMAX, TD-SCDMA, LTE and TD-LTE technologies. The subscriber identity cards 10 and 20 can be any two of SIM cards, USIM cards, R-UIM cards and CSIM cards, as long as they can correspond to the wireless communication technology supported by the baseband chip 210 . Therefore, for the SIM cards 10 and 20, the mobile station 200 can reside in two cells provided by the same or different network operators (core network operator A and core network operator B as shown in FIG. 1 ) at the same time. , and use a single radio frequency module 220 and baseband chip 210 to operate in different modes, such as: online mode, idle mode, cell dedicated channel (cell Dedicated Channel, CELL_DCH) mode, cell forward access channel (cell Forward Access Channel, CELL_FACH) mode, cell paging channel (cell Paging Channel, CELL_PCH) mode, and UMTS Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN) registration area paging channel (UTRAN Registration Area Paging Channel, URA_PCH) mode. In addition, the mobile station 200 also includes a user interface device 250 to provide a user interface for the user to interact with the mobile station 200. The user interface device 250 may include a keyboard, a touch panel, a touch screen, a joystick, a mouse, and/or a scanning device. device and so on. For example, when receiving a called call (MT call), the user interface device 250 can display an incoming call notification on the touch screen, and then the user can answer the call by clicking a virtual answer button displayed on the touch screen.

Fig. 3 is a schematic diagram of a hardware architecture of a mobile station according to another embodiment of the present invention. Similar to FIG. 2 , the baseband chip 310 is used to perform baseband signal processing, such as analog-to-digital conversion/digital-to-analog conversion, gain adjustment, modulation and demodulation, encoding/decoding, and so on. The difference is that the connection between the mobile station 300 and the subscriber identity cards 10 and 20 is handled by two interfaces provided by the baseband chip 310 respectively. It should be understood that the hardware architecture shown in FIG. 2 and FIG. 3 can be further modified to include more than two subscriber identification cards, and the present invention is not limited thereto.

FIG. 4 is a schematic diagram of a hardware architecture of a mobile station equipped with a single antenna and coupled with two subscriber identification cards according to another embodiment of the present invention. This architecture is applicable to any mobile station supporting GSM/GPRS and WCDMA technology. In this architecture, two radio access technology modules 410 and 420 share a single antenna 430, and each radio access technology module includes at least one radio frequency module and one baseband chip to reside in the cell and operate on standby (standby) -by) mode, idle mode, or online mode. As shown in FIG. 4 , the GSM/GPRS baseband chip 411 is coupled to the GSM/GPRS radio frequency module 412 , and the WCDMA baseband chip 421 is coupled to the WCDMA radio frequency module 422 . In addition, each RAT module interacts with a specific subscriber identity card, such as (U)SIM card A or B, when operating in a specific mode. The switching device 440 is coupled between the shared antenna 430 and a plurality of low noise amplifiers (Low Noise Amplifiers, LNAs), and is responsible for connecting the antenna 430 and one of the LNAs, so that the radio frequency signal can pass through the connected LNAs. Each low noise amplifier amplifies the 2G/3G frequency band signal received from the antenna 430, and then provides the amplified signal to the corresponding radio frequency module, wherein the 2G/3G frequency band can be 900 MHz, 1800 MHz, 1900 MHz or 2100 MHz, etc. frequency band. When the GSM/GPRS baseband chip 411 or the WCDMA baseband chip 421 intend to perform transceiver operations, such as transmission (Tx) or reception (Rx) operations, the control signal Ctrl_GSM_band_sel or Ctrl_WCDMA_band_sel will be sent to control the switching device 440 to connect the antenna 430 to the designated low noise amplifier. It should be noted that the GSM/GPRS baseband chip 411 and the WCDMA baseband chip 421 can be further connected to each other to perform the above-mentioned coordination operations. The coordination operations are mainly related to the suspension/termination and continuation/restart of data transmission or reception. It should be understood that the GSM/GPRS module 410 and the WCDMA module 420 are only examples. For those skilled in the art, without departing from the spirit and scope of the present invention, it can be obtained that GSM/GPRS/EDGE, WCDMA, CDMA - any two of 2000, WiMAX, TD-SCDMA, LTE, TD-LTE and other technologies etc. to implement the wireless access modules 410, 420 shown in FIG. 4 to replace the GSM/GPRS module 410 and the WCDMA module 420, And the present invention is not limited thereto. It should also be understood that the hardware architecture shown in FIG. 4 can be further modified to include more than two subscriber identification cards, and the present invention is not limited thereto.

A typical SIM card includes user account information, an International Mobile Subscriber Identity (IMSI), and an instruction set for a SIM Application Toolkit (SAT). In addition, the SIM card also provides space for storing phonebook contacts. The micro-processing unit (Micro-Processing Unit, MCU) of the baseband chip (hereinafter referred to as Baseband MCU) can interact with the micro-processing unit of the SIM card (hereinafter referred to as SIM MCU). data or instructions for SIM application development tools. After inserting the SIM card, the mobile station is programmed. The SIM card can also be programmed to display a list of functions specific to individual services. The SIM card can further store the code of the local public land mobile network (Home Public-Land-Mobile-Network, HPLMN) to indicate the network operator associated with it, where the HPLMN code contains the mobile country code (MobileCountry Code, MCC) And followed by Mobile Network Code (Mobile Network Code, MNC). To further explain, the International Mobile Subscriber Identifier is a unique number associated with a corresponding user in the GSM or UMTS system. The mobile station can transmit the international mobile user identifier to the GSM or UMTS network to obtain other detailed information of the network user from the home location register (Home Location Register, HLR), or from the visitor location register (Visitor Location Register, VLR) Obtain the detailed information of the network user's in-visit replication in . The length of a typical international mobile subscriber identifier is 15 digits (digit) or slightly shorter (for example: the length of the international mobile subscriber identifier used by the operator MTN in South Africa is 14 digits). The first 3 digits are the mobile country code, and the next 2 digits (European regulations) or 3 digits (North American regulations) are the mobile network codes, and the remaining digits are the corresponding user's mobile phone number in the GSM or UMTS system. Mobile Subscriber Identification Number (MSIN).

The USIM card is used in the UMTS system (or 3G communication system) for the mobile station to communicate with the network terminal. The USIM card stores user account information, international mobile subscriber identifier, and USIM Application Toolkit (USAT) instruction set, and provides space for storing phonebook contacts and text messages. The USIM card can further store the code of the local public land mobile network to indicate the network operator associated with it. The Baseband MCU can interact with the micro-processing unit of the USIM card (hereinafter referred to as the USIM MCU), and obtain data or instructions of the USIM application development tool with the USIM card inserted by itself. It is worth noting that compared with the SIM card, the function of the phone book contacts on the USIM card has been greatly improved. For the purpose of authentication, the USIM card can store a long-term pre-shared key K, which is shared by the USIM card and the authentication center (Authentication Center, AuC) on the network side. USIM MCU can use the window mechanism to confirm whether a sequence number falls within a reasonable range to avoid replay attacks. USIM MCU is also responsible for generating session keys (sessionkeys) CK and IK, which are used for the confidentiality and integrity algorithm (or A5, A3 algorithm) in the KASUMI block coding of the UMTS system. After inserting the USIM card, the mobile station is programmed. In addition, the R-UIM or CSIM card is used for the mobile station of Synchronous Code Division Multiple Access, which is equivalent to the SIM card used in the GSM system and the USIM card used in the UMTS system except that it is suitable for the Synchronous Code Division Multiple Access network. The R-UIM or CSIM card is structurally compatible with the SIM card used in the GSM system, and provides similar security mechanisms for users and synchronous code division multiple access networks.

Fig. 5 is a schematic diagram showing call control (Call Control, CC) of a mobile station receiving a called call in the GSM/GPRS/EDGE system. Call control is one of the physics of Connection Management (CM), and includes procedures for establishing, controlling, and terminating calls. A called call is a call initiated from within or outside the public land mobile network and made to a mobile station. When a called call to a mobile station is initiated, the mobile switching center (Mobile Switching Center, MSC)/visitor location register can order the base station subsystem (Base Station Subsystem, BSS) to page the mobile station. Because the Mobile Switching Center/Visitor Location Register does not know which base station of the base station subsystem the mobile station is camped on, paging messages are sent throughout the Location Area (LA). The mobile station can receive the paging request message (marked as PAG_REQ in Figure 5) through the paging channel, and identify the paging request according to the temporary mobile subscriber identifier (Temporary Mobile Subscriber Identity, TMSI) or the international mobile subscriber identifier The message is for it. Then, the mobile station can send a channel request message (marked as CHAN_REQ in Figure 5) to the base station subsystem through the random access channel (Random Access Channel, RACH), and the base station subsystem can pass the access grant channel (Access Grant Channel, AGCH) ) to send a configuration message (marked as IMM_ASS_COM in Figure 5) in response to the mobile station. The configuration message is used to configure an independent dedicated control channel (Stand-Alone Dedicated Control Channel, SDCCH) to the mobile station, so that it can be used for signaling with the serving network before configuring the data transmission channel (Traffic Channel, TCH). So far, the serving network does not know that the mobile station is the target mobile station it wants to page, only that the mobile station wants to access the serving network. Upon receiving the configuration message, the mobile station immediately switches to the configured dedicated dedicated control channel, and sends a paging response message (labeled as PAG_RES in FIG. 5 ) to the serving network through the dedicated dedicated control channel. At this point, the service network knows that the mobile station is the mobile station it wants to page, so the preliminary setting of the called call is completed here.

Before the serving network provides services to the mobile station, the mobile station needs to authenticate itself to the serving network. The base station subsystem sends an authentication request message (denoted AUTH_REQ in FIG. 5 ) including a random number (denoted RAND in FIG. 5 ) to the mobile station. The random number is a 128 generated by the home location register for authentication. A random challenge of bits. The mobile station calculates the appropriate signed response (Signed Response, SRES) based on the random number, and then sends the signed response to the base station subsystem through the verification response message (marked as AUTH_RESP in Figure 5). Next, the base station subsystem checks the authentication back-sign. If the authentication back-sign is correct, the mobile station is authenticated and allowed to access the service network. Once authenticated, the MSC/VLR can instruct the BSS and MS to switch to ciphering mode via a security mode command message (labeled as CIPH_MOD_CMD in FIG. 5 ). When the mobile station has entered the encryption mode, the visitor location register will configure a new temporary mobile user identifier for the mobile station, and then the mobile switching center will send a setup message (marked as SETUP in Figure 5) to the mobile station through the base station subsystem to initiate Channel establishment. Creating a message may include Calling Line Identification Presentation (CLIP), that is, the calling line. The mobile station sends a call confirmation message (marked as CALL_CON in Figure 5) in response to the received establishment message. The call confirmation message is used to indicate that the mobile station can establish the required connection, and the call confirmation message can be forwarded by the base station subsystem to mobile switching center. Then, the flow proceeds to the call establishment procedure, and the base station subsystem transmits a configuration command message (marked as ASS_CMD in FIG. 5 ) to the mobile station through the configured independent dedicated control channel. The configuration instruction message is used to configure the data transmission channel to the mobile station. When receiving the configuration instruction message, the mobile station immediately switches to the data transmission channel, and transmits the configuration completion message (marked as ASS_COM in Figure 5) through the Fast Associated Control Channel (FACCH) to respond to the base station subsystem (fast The control associated channel is used for signaling and belongs to a time slot on the data transmission channel, that is, all signaling on the data transmission channel is performed on the fast associated control channel). Once the mobile station completes the establishment of the data transmission channel, it starts ringing for incoming calls. Afterwards, the mobile station sends an alert message (marked as ALERT in Figure 5) to the mobile switching center through the fast associated control channel, and then the base station subsystem forwards the alert message to the caller through the public switched telephone network (PSTN). (if the mobile station and the calling party are in different public telephone networks), then the calling party will hear the connected ring tone. When the user of the mobile station answers the call (by pressing a specific button or touching a specific button displayed on the screen, or by other means), the mobile station sends a connection message (marked as CON in Figure 5) to the mobile exchange Center, and the connection message is forwarded by the switching device at the originating end to start the conversation. Finally, the mobile switching center replies a connection confirmation message (marked as CON_ACK in FIG. 5 ) to the mobile station, thereby completing the establishment of the called call. The call control of the UMTS, TS-SCDMA, or LTE system is similar to the call control of the above-mentioned GSM system, so it will not be repeated here.

FIG. 6 is a schematic diagram showing an example of the packet access procedure of the GPRS/EDGE system. Initially, the mobile station transmits a packet channel request (PACKET CHANNEL REQUEST) message to the base station subsystem in the GPRS/EDGE system through the packet random access channel (PRACH) or random access channel (RACH), where The packet channel request message includes parameters indicating the radio resource and access type requested by the mobile station. In a single-phase packet access procedure, the base station subsystem can transmit a packet immediate assignment (PACKET IMMEDIATE ASSIGNMENT) message through the packet grant access channel (Packet Access Grant Channel, PAGCH) or grant access channel (AGCH) to respond to the mobile station , wherein the packet immediate assignment message includes relevant information about radio resources reserved for uplink data transmission on a packet data channel (Packet DataChannel, PDCH). After successfully receiving the packet immediate assignment message, the mobile station can start data transmission. In a two-phase packet access procedure, the base station subsystem may respond to the mobile station by transmitting a Packet Immediate Assignment message on the Packet Granted Access Channel or the Granted Access Channel, where the Packet Immediate Assignment message includes a resource request for a packet to be transmitted later (PACKET RESOURCE REQUEST) information about the radio resources reserved by the message. The packet resource request message includes complete relevant information for uplink data transmission. When receiving a packet resource request message, the base station subsystem transmits a packet resource assignment (PACKET RESOURCE ASSIGNMENT) message to respond to the mobile station, where the packet resource assignment message includes information about radio resources reserved for uplink data transmission on the packet data channel . After successfully receiving the packet resource allocation message, the mobile station can start data transmission.

7 is a schematic diagram showing channel scheduling for a mobile station monitoring a 3G Circuit Switched (CS) paging channel to perform a 2G packet access procedure according to an embodiment of the present invention. The mobile station described in this embodiment (for example: mobile station 200, 300 or 400) can support simultaneous communication with the GPRS/EDGE system and the UMTS system. In particular, the mobile station associates to the UMTS system using a first Subscriber Identity Card (denoted SIM-Y in FIG. 7) to monitor the paging channel for 3G circuit switching, and uses a second Subscriber Identity Card (denoted SIM-X) associated to GPRS/EDGE system to perform 2G packet access procedures. Specifically, the mobile station needs to continuously listen to the 3G paging channel to receive paging messages from the UMTS system, and the mobile station may need to listen to the paging occasion in each Discontinuous Reception (DRX) cycle. Paging Indicator Channel (PICH) or Paging Channel (PCH) to receive paging messages. As shown in FIG. 7 , before the 2G packet access procedure is executed, if the radio resource allocation meets the paging period, it is all assigned to the 3G paging channel, that is, the paging indicator channel or the paging channel. During the 2G packet access procedure, when the mobile station has transmitted the packet channel request message and is waiting for the packet immediate allocation message, the radio frequency resource allocation is assigned to the 2G grant access channel, and when the mobile station is not waiting for the packet immediate allocation When sending messages, the RF resource allocation is assigned to the 3G paging channel. In other words, 2G grant access channels are protected from being interrupted by 3G paging operations. When receiving a paging message, the mobile station will judge whether the paging message is aimed at it, if so, the mobile station can suspend the 2G packet access procedure to establish a connection with the UMTS system to answer the called call; otherwise, If the paging message is not intended for it, the mobile station can enter 3G idle mode for the UMTS system to wait for the next paging period, and the radio resource allocation can be used for other required operations, including communication with GPRS/EDGE systems and any jobs associated with the UMTS system.

The mobile station can measure the signal quality and/or signal strength of candidate cells, and then use the measurement result (measured signal quality and/or signal strength) as a judgment factor to perform the handover procedure and the cell reselection procedure. If the mobile station is in idle mode, it will receive a cell broadcasting information about neighboring cells, such as the frequency of the broadcasting control channel of the neighboring cells. In the GSM/GPRS/EDGE system, the mobile station can receive the information of the adjacent cells, and measure the received signal strength indicators (Received Signal Strength Indications, RSSIs) of the broadcast control channels of the adjacent cells, where each RSSI is used To indicate the wideband received power in the GSM channel frequency band. In the UMTS system, even if adjacent cells use the same broadband frequency, they can still be distinguished by their respective scrambling codes, and the mobile station continuously monitors the Common Pilot Channel (CPICH) to measure Power level, such as: power-to-noise ratio (Ec/No), received signal code power (Received Signal Code Power, RSCP), etc., the information obtained from monitoring can be used to evaluate which UMTS cells should be used as candidates for cell reselection district.

In one embodiment, the mobile station can initiate a cell reselection procedure to maintain its mobility in the same or a different GSM/GPRS/EDGE system, the so-called intra-RadioAccess Technology (intra-RAT) ), or the mobile station can also initiate a cell reselection procedure to transfer its mobility from the GSM/GPRS/EDGE system to the UMTS system or from the UMTS system to the GSM/GPRS/EDGE system, the so-called heterogeneous Inter-RAT cell reselection procedure. Specifically, the mobile station may decide to perform the cell reselection procedure according to the reselection criteria of the used RAT. For example, in the GSM system, the reselection criterion includes the C1 criterion and the C2 criterion; in the UMTS system, the reselection criterion includes the cell ranking criterion R. For a detailed description of the C1/C2 guidelines in the GSM system, please refer to the standard specification TS 05.08 (before the 4th edition) or TS45.008 (4th edition) formulated by the 3rd Generation Partnership Project (3GPP). For the detailed description of the cell sorting criterion R in the UMTS system, please refer to the standard specification book TS 25.304 formulated by the Third Generation Partnership Project. In addition, the mobile station can also receive system information broadcast from the serving cell and neighboring cells for cell reselection. Specifically, the frequency of the broadcast control channel of the adjacent cell is obtained according to the system information broadcast by the serving cell, and then the system information broadcast by the adjacent cell is received according to the frequency of the broadcast control channel.

Since the reception of system information plays a very important role in the cell reselection procedure, it is necessary to avoid the reception of system information being blocked by operations related to different serving networks (such as paging operations, measurement operations, and cell scanning operations, etc.) interruption. FIG. 8 is a schematic diagram showing channel scheduling for a mobile station in 2G packet transmission mode to monitor a paging channel for 3G circuit switching according to an embodiment of the present invention. The mobile station described in this embodiment (for example: mobile station 200, 300, or 400) can support simultaneous communication with the GPRS/EDGE system and the UMTS system. In particular, the mobile station uses the first subscriber identity card (marked as SIM-X in FIG. 8 ) to associate with the GPRS/EDGE system for packet-switched data services (such as sending and receiving emails, browsing the web, etc.), and uses the second Two Subscriber Identity Cards (labeled SIM-Y in Figure 8) are associated to the UMTS system. That is, the mobile station is in 2G packet transmission mode in GPRS/EDGE system, and is in 3G idle mode in UMTS system. When set to 3G idle mode, the mobile station needs to continuously listen to the 3G paging channel to receive paging messages from the UMTS system, and the mobile station may need to listen to the paging indicator channel or Paging channel to receive paging messages. As shown in Figure 8, before the cell reselection procedure needs to be performed during the packet switched data service associated with the GPRS/EDGE system, if the mobile station does not need to receive paging messages, the radio frequency resource allocation is assigned to the 2G packet data channel for Perform packet switched data service, and then in each paging period, the radio frequency resource allocation is assigned to the 3G paging channel, that is, the paging indicator channel or paging channel. When receiving the paging message, the mobile station will judge whether the paging message is aimed at it, if so, the mobile station can suspend the packet-switched data service associated with the GPRS/EDGE system to receive the called call from the UMTS system; otherwise , if the paging message is not intended for it, the mobile station can switch back to packet-switched data service, and the radio frequency resource allocation can be used for other operations that need to be performed, including any operations associated with GPRS/EDGE systems and UMTS systems. However, during the cell reselection procedure, when it is necessary to receive the system information of the target cell and/or neighboring cells, the radio frequency resource allocation will be assigned to the 2G broadcast control channel, and when it is not necessary to receive the system information of the target cell and/or neighboring cells When receiving system information, the radio frequency resource allocation is assigned to the 3G paging channel in each paging period, and assigned to the 2G packet data channel at other times. It should be noted that during the cell reselection procedure, because the time for receiving the system information of the target cell and/or neighboring cells overlaps with the paging period, the radio frequency resource allocation will be assigned to the 2G broadcast control channel instead of Not a 3G paging channel. In other words, the 2G broadcast control channel is protected from being interrupted by 2G packet switched data services and 3G paging operations. After the cell reselection procedure is completed, the radio frequency resource allocation is as described above, and the 3G paging channel is preferentially assigned to the 2G packet data channel.

During the cell reselection procedure in the GSM/GPRS/EDGE system, in addition to collecting the broadcast system information from the broadcast control channel, the mobile station may also need to use the frequency correction channel (Frequency Correction) of the target base station subsystem. Search for Frequency correction Burst (FB) on Channel, FCCH) and/or search for Synchronization Burst (SB) on Synchronization Channel (SCH). Wherein the mobile station uses a frequency correction burst to synchronize with the frequency of the target BSS, and uses a synchronization burst to synchronize with the timing of the target BSS. Those skilled in the art can figure out how to perform channel scheduling based on the embodiments described in FIG. 7 and FIG. 8 , so as to avoid the search for frequency correction bursts and/or synchronization bursts from being associated with specific tasks of different service networks. (For example: paging operation, measurement operation, and cell scanning operation, etc.) interrupted.

In another embodiment, the cell reselection procedure can be initiated by the serving network, specifically, if the serving network wants to transfer the mobile station from one cell to another in the same or a different GSM/GPRS/EDGE system, the so-called packet Cell Change Order (Packet Cell Change Order, PCCO) procedure, the serving network can send a packet cell change order (PACKET CELL CHANGE ORDER) message to the mobile station, where the packet cell change order message includes the Information about cell synchronization. Alternatively, if the serving network wants to transfer the mobile station from the UMTS system to the GSM/GPRS/EDGE system, the so-called Cell Change Order (CCO) procedure, the serving network can transmit the Cell Change Order (CELL CHANGE ORDER) message to the mobile station. FIG. 9 is a schematic diagram showing an example of a mobile station in idle mode associated with a GSM/GPRS/EDGE system performing a packet cell change command procedure. After the mobile station camps on the current base station subsystem and enters the idle mode, the current base station subsystem transmits a packet immediate allocation message to the mobile station through the grant access channel, wherein the packet immediate allocation message configures a packet associated control channel ( Packet Associated Control Channel, PACCH) is used by the mobile station to communicate with the serving network. When receiving the packet-associated immediate message, the mobile station sets the packet-associated control channel accordingly. Next, the current base station subsystem transmits a packet measurement order (PACKET MEASUREMENTORDER) message to the mobile station through the packet-associated channel control channel, where the packet measurement order message includes the information required by the mobile station to perform measurements on the network-controlled cell reselection procedure . When receiving the packet measurement command message, the mobile station replies a packet control acknowledgment (PACKET CONTROL ACKNOWLEDGEMENT) message to the current base station subsystem to confirm that it has received the packet measurement command message. Then, the mobile station performs measurement according to the information carried in the packet measurement command message. Specifically, the mobile station measures the RSSI of the broadcast control channel of the candidate cell indicated by the information in the packet measurement command message. After the measurement is completed, the mobile station transmits a channel request (CHANNEL REQUEST) message to the current base station subsystem through a random access channel to request radio frequency resource allocation and return the measurement result. Then, the current base station subsystem replies with an IMMEDIATE ASSIGNMENT message to assign radio frequency resource allocation. When receiving the immediate allocation message, the mobile station reports the measurement result to the current base station subsystem through a packet measurement report (PACKETMEASUREMENT REPORT) message. According to the measurement result, the serving network decides to handover the mobile station from the current BSS to another target BSS. Therefore, the current base station subsystem transmits a packet cell change command message to the mobile station, wherein the packet cell change command message includes relevant information of the target base station subsystem, for example: the absolute radio frequency channel number (Absolute Radio Frequency) of the target base station subsystem Channel Number, ARFCN), and Base Station Identity Code (BSIC), etc. Finally, the mobile station collects the system information of the target base station subsystem according to the information carried in the packet cell change command message, and then switches to the target base station subsystem according to the collected system information. It should be noted that during the process of collecting the system information of the target base station subsystem, radio frequency resource allocation is preferentially assigned to the broadcast control channel of the target base station subsystem, as shown in FIG. 8 .

Alternatively, if the packet cell change command procedure shown in Figure 9 is a blind (blind) packet cell change command procedure (that is, the mobile station does not perform measurement and synchronization operations before performing the packet cell change command procedure), then after switching to Before the target BSS, the mobile station may need to search for frequency correction bursts on the frequency correction channel of the target BSS and/or search for synchronization bursts on the synchronization channel. Wherein the mobile station uses a frequency correction burst to synchronize with the frequency of the target BSS, and uses a synchronization burst to synchronize with the timing of the target BSS. Those skilled in the art can figure out how to perform channel scheduling according to the embodiments described in FIG. 7 and FIG. 8 , so as to avoid the search for frequency correction bursts and/or synchronization bursts from being associated with specific operations of different service networks. (For example: paging operation, measurement operation, and cell scanning operation, etc.) interrupted.

FIG. 10A and FIG. 10B are schematic diagrams showing an example of a cell change order procedure performed by a mobile station associated with a GSM/GPRS/EDGE system and in an on-line mode. The connection mode can be a cell-dedicated channel mode or a cell-transfer access channel mode. In this embodiment, the mobile station is first connected to the UMTS system, and then is about to be handed over from the UMTS system to the GSM/GPRS/EDGE system. When the UMTS system decides to transfer the mobile station to the GSM/GPRS/EDGE system, the serving Radio Network Controller (serving RNC) in the UMTS system will send a UTRAN cell change order (CELL CHANGE ORDER FROM UTRAN) message For the mobile station, the message includes at least information about the requested target BSS located in the GSM/GPRS/EDGE system. Then, the mobile station switches to the target base station subsystem according to the information in the message. Specifically, the mobile station can receive system information broadcast by the target BSS on the broadcast control channel, and the system information can be required information for the mobile station to reselect to the target BSS. It should be noted that when it is necessary to receive broadcast system information, radio frequency resource allocation is assigned to the broadcast control channel first, as shown in FIG. 8 . After successfully handing over to the target base station subsystem, the mobile station initiates the routing area update procedure by sending a routing area update request (ROUTINGAREA UPDATE REQUEST) message to the serving GPRS support node (Serving GPRS Support Node, SGSN) of the target base station subsystem, The message includes the packet temporary mobile subscriber identity (Packet Temporary Mobile Subscriber Identity, P-TMSI) of the mobile station, and the routing area identifier where the mobile station stays before receiving the UTRAN cell change command message. When the UTRAN Cell Change Order message is sent to the mobile station, the packet context is transferred from the serving radio network controller in the UMTS system to the SGSN in the GSM/GPRS/EDGE system. Specifically, the SGSN in the GSM/GPRS/EDGE system transmits a context request (SRNC CONTEXT REQUEST) message of the serving radio network controller to request the transfer of the packet context. Then, in response to the context request message of the serving radio network controller, the serving radio network controller in the UMTS system returns a context response (SRNCCONTEXT RESPONSE) message of the serving radio network controller to the SGSN. When receiving the context response message of the serving radio network controller, the SGSN in the GSM/GPRS/EDGE system transmits the data forwarding command (SRNC DATA FORWARD COMMAND) message of the serving radio network controller to initiate the transfer of packet data. After the transfer of packet data is completed, the SGSN in the GSM/GPRS/EDGE system sends an Iu Release Command (IU RELEASE COMMAND) message to request the serving radio network controller in the UMTS system to release the Iu connection between them and the Iu Online related wireless resources. In response to the Iu release command message, the serving radio network controller in the UMTS system sends an Iu release complete (IURELEASE COMPLETE) message to the SGSN in the GSM/GPRS/EDGE system. Then, the Iu connection between the serving radio network controller in the UMTS system and the SGSN in the GSM/GPRS/EDGE system and the related radio resources of the Iu connection are released. Afterwards, the SGSN in the GSM/GPRS/EDGE system replies with a routing area update accept (ROUTING AREA UPDATE ACCEPT) message to the mobile station to confirm the routing area update request, wherein the routing area update accept message may include the group temporary movement of the mobile station user identifier. When receiving the routing area update acceptance message, the mobile station further transmits the routing area update completion (ROUTING AREA UPDATECOMPLETE) message to the SGSN in the GSM/GPRS/EDGE system to inform the confirmation of the routing area update acceptance message, thus ending Cell Change Order Procedure.

Alternatively, in the cell change order procedure shown in Figure 10A and Figure 10B, if the mobile station has not performed measurement and synchronization operations for the target BSS before receiving the UTRAN cell change order message, the mobile station may need to receive The system information broadcast on the broadcast control channel of the target BSS is preceded by searching for a frequency correction burst on the frequency correction channel of the target BSS and/or searching for a synchronization burst on the synchronization channel, wherein the mobile station uses the frequency correction burst Transmit to synchronize with the frequency of the target BSS and use synchronization bursts to synchronize with the timing of the target BSS. Those skilled in the art can figure out how to perform channel scheduling according to the embodiments described in FIG. 7 and FIG. 8 , so as to avoid the search for frequency correction bursts and/or synchronization bursts from being associated with specific operations of different service networks. (For example: paging operation, measurement operation, and cell scanning operation, etc.) interrupted.

FIG. 11 is an exemplary schematic diagram showing a mobile station associated with a GPRS/EDGE system performing a Packet-Switched Handover (PSHO) procedure. In this embodiment, the mobile station first connects to the GPRS/EDGE system through the source BSS to obtain downlink/uplink data services. When the source base station subsystem decides to handover the mobile station to the target base station subsystem under the same SGSN, it will send a PS HANDOVER REQUIRED message to the SGSN to request the handover of the mobile station. In response to the packet switching handover request message, the SGSN will send a packet switching handover request (PS HANDOVER REQUEST) message to the target base station subsystem to request to reserve resources for the mobile station. After the required resources are reserved, the target base station subsystem will reply a PSHANDOVER REQUEST ACKNOWLEDGE message to the SGSN to inform the packet switched handover request message. When receiving the packet switching handover request confirmation message, the SGSN starts to relay (relay) the data packets of the downlink/uplink data service required by the mobile station to the target base station subsystem. After the data packet is delivered, the SGSN sends a PS HANDOVERREQUIRED ACKNOWLEDGE message to the source base station subsystem in response to the above packet switching handover demand message. Next, the source base station subsystem transmits a packet switched handover command (PS HANDOVERCOMMAND) message to the mobile station, wherein the PS HANDOVER COMMAND message includes resource information configured for the mobile station and system resource information of the target base station subsystem. With the system resource information of the target BSS, the mobile station can access the configuration resource without signaling on the common control channel. When receiving the packet switching handover command message, the mobile station first suspends the ongoing downlink/uplink data service, and then replies with a packet control acknowledgment (PACKET CONTROL ACKNOWLEDGEMENT) message to the source base station subsystem to notify the packet switching handover command information. In this embodiment, since the mobile station does not obtain the timing advance information of the target base station subsystem before leaving the source base station subsystem, the mobile station needs to transmit PS HANDOVER ACCESS (PS HANDOVER ACCESS) information through the packet data channel. ) message to the target base station subsystem to obtain the timing advance of the target base station subsystem. When receiving the packet switched handover access message, the target base station subsystem will reply the packet physical information (PACKET PHYSICAL INFORMATION) message to the mobile station through the packet data channel, and then send the packet switched handover complete (PS HANDOVER COMPLETE) message to the mobile station The SGSN, then ends the packet switched handover procedure. Once the packet switching handover is known, the SGSN will only forward the downlink data packets to the target BSS, and the resources configured by the source BSS for the mobile station will be released. At the same time, once the mobile station obtains the timing advance information of the target base station subsystem, it can transmit normal bursts and continue the suspended downlink/uplink data service. It is worth noting that in the PS handover procedure, when the mobile station has transmitted the PS handover access message and is waiting for the packet physical information message, it can ensure that the packet data channel will not be associated with a specific operation of the UMTS system (For example: paging operation, measurement operation, and cell scanning operation, etc.) interrupted. For those skilled in the art, how to perform channel scheduling can be figured out according to the embodiments described in FIG. 7 and FIG. Measurement operations, and cell scanning operations, etc.) are interrupted.

Alternatively, in the packet switching handover procedure shown in Figure 11, if the mobile station has not performed measurement and synchronization operations for the target BSS before receiving the packet switching handover command message, the mobile station may need to handover to The target BSS previously searches for a frequency correction burst on a frequency correction channel of the target BSS and/or searches for a synchronization burst on a synchronization channel, wherein the mobile station uses the frequency correction burst to synchronize with the frequency of the target BSS , and use synchronization bursts to synchronize with the timing of the target BSS. Those skilled in the art can figure out how to perform channel scheduling according to the embodiments described in FIG. 7 and FIG. 8 , so as to avoid the search for frequency correction bursts and/or synchronization bursts from being associated with specific operations of different service networks. (For example: paging operation, measurement operation, and cell scanning operation, etc.) interrupted.

FIG. 12 is a schematic diagram showing an example of a mobile station associated with the UMTS system performing a connection establishment procedure. First of all, the connection establishment procedure begins with the mobile station sending a radio resource control connection request (RRC CONNECTION REQUEST) message to the UTRAN through a random access channel. Mobile Subscriber Identifier, or International Mobile Subscriber Identifier, etc.) and the reason for establishment (for example: general call, streaming service, emergency call, registration, or location update, etc.). When receiving a radio resource control connection request message, UTRAN can reserve radio resources for the mobile station, and then reply the radio resource control connection establishment (RRC CONNECTION SETUP) message to the mobile station through the forwarding access channel, which includes the information configured for The configuration information of the radio resource of the mobile station, for example: the scrambling code (scrambling code) used by the mobile station in the uplink direction. In response to the RRC connection establishment message, the mobile station executes the synchronization procedure A to at least establish the downlink and uplink dedicated physical channels corresponding to the configured radio resources, and then replies that the RRC connection establishment is completed through the transfer access channel or the dedicated channel (RRC CONNECTIONSETUP COMPLETE) message to UTRAN to inform the mobile station that it has confirmed the configuration of radio resources. Once the UTRAN successfully receives the RRC connection establishment complete message, the connection establishment procedure is completed. Afterwards, the mobile station can then continue with the specific procedure that initially triggered the connection establishment procedure. For example, if the establishment reason of the connection establishment procedure is "registration", the mobile station can continue to register with UTRAN; if the establishment reason of the connection establishment procedure is "location update", the mobile station can continue to update its location information to UTRAN. It should be noted that in the connection establishment procedure, when the mobile station sends the RRC connection request message, the radio frequency resource allocation is assigned to the transfer access channel first, and when the mobile station receives the RRC connection establishment When sending messages, the RF resource allocation is preferentially assigned to dedicated channels, thus ensuring that the connection establishment procedure will not be blocked by specific operations associated with different service networks (such as paging operations, measurement operations, and cell scanning operations, etc.) interruption. Afterwards, after the mobile station sends the RRC connection setup message, the radio resource allocation is preferentially assigned to specific tasks associated with different service networks (eg, paging tasks, measurement tasks, and cell scanning tasks, etc.).

FIG. 13 shows a channel scheduling procedure for a mobile station monitoring a 2G paging channel to execute a 3G connection establishment procedure according to an embodiment of the present invention. The mobile station described in this embodiment (for example: mobile station 200, 300, or 400) can support simultaneous communication with GSM/GPRS/EDGE and UMTS systems. In particular, the mobile station associates to the GSM/GPRS/EDGE system using a first Subscriber Identity Card (marked SIM-Y in Figure 13) to monitor the 2G paging channel, and uses a second Subscriber Identity Card (marked SIM-Y in Figure 13 For SIM-X) associate to UMTS system to perform 3G connection establishment procedure. Specifically, the mobile station needs to continuously monitor the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. The mobile station may need to listen to the Common Control Channel (CCCH) during the paging period of each DRX cycle to receive paging messages. As shown in FIG. 13 , in each paging period before the 3G connection establishment procedure is executed, the radio frequency resource allocation is preferentially assigned to the 2G paging channel. When receiving the paging message, the mobile station will judge whether the paging message is for it, if so, the mobile station can enter the 3G idle mode for the UMTS system to receive the called call from the GSM/GPRS/EDGE system. Conversely, if the paging message is not intended for it, the mobile station can enter the 2G idle mode for the GSM/GPRS/EDGE system to wait for the next paging period. At this time, whether it is associated to the GSM/GPRS/EDGE system or Any operation in the UMTS system can obtain RF resource allocation. However, in the 3G connection establishment procedure, when the mobile station has sent the RRC connection request message and is waiting for the RRC connection establishment message, the radio frequency resource allocation is preferentially assigned to the 3G transfer access channel; and when the mobile station When the station receives the connection establishment message of the radio resource control, the radio frequency resource allocation is preferentially assigned to the 3G dedicated channel. In other words, the 3G connection establishment procedure cannot be interrupted by the 2G paging operation. After the 3G connection establishment procedure is completed (that is, after the RRC connection establishment complete message is transmitted), the radio resource allocation can be preferentially assigned to the 2G paging channel.

FIG. 14 is a schematic diagram showing an example of a hard handover (HHO) procedure performed by a mobile station associated with the UMTS system. In this embodiment, the mobile station first connects to the UMTS system through the source RNC and is in 3G connection mode. When the source RNC decides to reset the function of the serving RNC to the target RNC under the same SGSN (i.e. handover the mobile station from the source RNC to the target RNC) , it will send a handover request (HANDOVER REQUIRED) message to the SGSN to request handover of the mobile station. In response to the handover requirement message, the SGSN transmits a handover request (HANDOVER REQUEST) message to the target radio network controller to request resources reserved for the mobile station. After the resource reservation is completed, the target radio network controller will reply a handover request confirmation (HANDOVER REQUESTACKNOWLEDGE) message to the SGSN to inform the acknowledgment of the handover request message. When receiving the Handover Request Acknowledgment message, the SGSN sends a Handover Command (HANDOVER COMMAND) message to the source radio network controller to inform that the backend preparation for the handover has been completed. Next, the source RNC sends a hard handover command to the mobile station, the hard handover command includes configuration information required at the target RNC. Specifically, the hard handover command can be a physical channel reset (PHYSICAL CHANNEL RECONFIGURATION) message, a radio bearer reset (RADIOBEARER RECONFIGURATION) message, a radio bearer setup (RADIO BEARER SETUP) message, a radio bearer release (RADIO BEARER RELEASE) message, or transmission channel reset (TRANSPORT CHANNEL RECONFIGURATION) message. Taking the physical channel reset message as an example, the message may include the scrambling code required for the radio link of the target radio network controller, and the new UTRAN radio network temporary identifier (UTRAN Radio Network Temporary Identifier, U-RNTI). Then, the mobile station uses the information contained in the hard handover command to change the setting of the radio link connected to the target radio network controller, and then transmits a hard handover response to the target radio network controller to indicate confirmation Receive the setting information contained in the hard handover command. Specifically, the hard handover response can be a physical channel reset complete (PHYSICALCHANNEL RECONFIGURATION COMPLETE) message, a radio bearer reset complete (RADIO BEARER RECONFIGURATION COMPLETE) message, a radio bearer establishment complete (RADIO BEARER SETUP COMPLETE) message, a wireless RADIOBEARER RELEASE COMPLETE message, or TRANSPORTCHANNEL RECONFIGURATION COMPLETE message. It should be noted that during the period from when the mobile station receives the hard handover command from the UMTS system to when the mobile station transmits the hard handover response to the UMTS system, the present invention can ensure that the hard handover procedure will not be associated with a different service network. Specific operations (such as: paging operations, measurement operations, and cell scanning operations, etc.) are interrupted. Afterwards, when receiving the hard handover response, the target radio network controller sends a handover complete (HANDOVER COMPLETE) message to the SGSN. In response to the handover completion message, the SGSN sends an Iu Release Command (IU RELEASE COMMAND) message to the serving radio network controller to request the serving radio network controller to release the Iu connection and the related radio resources of the Iu connection.

FIG. 15 shows channel scheduling for a mobile station monitoring a 2G paging channel to perform a 3G hard handover procedure according to an embodiment of the present invention. The mobile station described in this embodiment (for example: mobile station 200, 300, or 400) can support simultaneous communication with GSM/GPRS/EDGE and UMTS systems. In particular, the mobile station associates to the GSM/GPRS/EDGE system using a first Subscriber Identity Card (marked SIM-Y in Figure 15) to monitor the 2G paging channel, and uses a second Subscriber Identity Card (marked SIM-Y in Figure 15 For SIM-X) associate to UMTS system to perform 3G hard handover procedure. The mobile station needs to continuously monitor the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. Specifically, the mobile station may need to listen to the general control channel during the paging period of each DRX cycle to receive paging messages. Before performing the 3G hard handover procedure, the mobile station connects to the UMTS system by performing the connection establishment procedure. Regarding the channel scheduling operation of the connection establishment procedure, its detailed description can refer to the embodiment shown in FIG. The access channel mode and the 3G dedicated channel need not be specially protected during the connection establishment procedure. As shown in FIG. 15 , after the connection establishment procedure is completed and before the 3G hard handover procedure is performed, for each paging period, the radio resource allocation is preferentially assigned to the 2G paging channel. When receiving the paging message, the mobile station will judge whether the paging message is for it, if so, the mobile station can enter the 3G idle mode for the UMTS system to receive the called call from the GSM/GPRS/EDGE system. Conversely, if the paging message is not intended for it, the mobile station can enter the 2G idle mode for the GSM/GPRS/EDGE system to wait for the next paging period. At this time, whether it is associated to the GSM/GPRS/EDGE system or Any operation in the UMTS system can obtain RF resource allocation. Then, when the mobile station receives a hard handover command from the UMTS system (that is, an instruction to notify the start of the hard handover procedure), the radio frequency resource allocation is preferentially assigned to the 3G dedicated channel until the mobile station transmits the hard handover command. Pass the response to the UMTS system. In other words, the 3G hard handover procedure cannot be interrupted by the 2G paging operation. Once the hard handover response is sent to the UMTS system, the RF resource allocation can be preferentially assigned to the 2G paging channel.

FIG. 16 is a schematic diagram of the software architecture of the mobile station according to an embodiment of the present invention. An example of the software architecture includes protocol stack processing modules 1610 and 1620 and an arbitration module 1630 . When the protocol stack processing module 1610 is executed by the processing unit or Baseband MCU, it is used to communicate with the first service network (for example: service network 120) using the first subscriber identity card (for example: subscriber identity card 10); and the protocol stack When the processing module 1620 is executed by the processing unit or the Baseband MCU, it is used to communicate with the second service network (for example: the service network 130 ) by using the second subscriber identity card (for example: the subscriber identity card 20 ). Since the mobile station is only equipped with a single radio frequency module, both the protocol stack processing modules 1610 and 1620 can request to obtain the control right of the radio frequency module to perform wireless communication at the same time period, so the arbitration module 1630 is used for the protocol stack processing modules 1610 and 1620. Scheduling of RF resource allocation.

FIG. 17 is a flowchart of a method for coordinating the operations of the protocol stack processing modules 1610 and 1620 by the arbitration module 1630 according to an embodiment of the present invention. Firstly, the protocol stack processing modules 1610 and 1620 are in the idle mode, and each can request the arbitration module 1630 to obtain radio resource allocation required for communication with different service networks. At the beginning of the communication operation coordination method, the arbitration module 1630 determines whether there is currently available radio frequency resource allocation (step S1702) when receiving a request from the protocol stack processing modules 1610 and 1620 to configure a specific channel (step S1701), If so, the arbitration module 1630 grants the request and assigns the current radio frequency resource allocation to the above-mentioned specific channel (step S1703), and then retracts when notified by one of the protocol stack processing modules 1610 and 1620 that the radio frequency resource allocation is no longer needed ( retrieve) the current radio frequency resource allocation (step S1704). Continuing with step S1702, on the contrary, if the current radio frequency resource allocation has been configured to another channel used by another one of the protocol stack processing modules 1610 and 1620 when executing a specific job/program or service, the arbitration module 1630 according to the The request and channel priority list determines whether the above-mentioned specific operation/program or service can be interrupted (step S1705). Specifically, the arbitration module 1630 may first determine whether the request indicates that the specific channel used is for a privileged program, and if so, whether the requested specific channel has a higher priority than the other channel. If the requested specific channel has a higher priority, the above-mentioned specific job/program or service is considered to be interruptible, and then the arbitration module 1630 requests another suspension of the protocol stack processing modules 1610 and 1620 that are using the above-mentioned another channel. The wireless operation performed by the channel (step S1706). When receiving a response indicating that the current radio frequency resource allocation has been released, the arbitration module 1630 grants the request and assigns the current radio frequency resource allocation to the above-mentioned specific channel (step S1707 ). Next, when notified by one of the protocol stack processing modules 1610 and 1620 that the radio frequency resource allocation is no longer needed, the arbitration module 1630 requests the other of the protocol stack processing modules 1610 and 1620 to use the current radio frequency resource allocation to continue to be allocated. Suspended wireless job (step S1708). Following step S1705, if the above-mentioned specific operation/program or service cannot be interrupted, the arbitration module 1630 rejects the request (step S1709).

In one embodiment, a list of privileged procedures can be used to indicate privileged procedures, including: paging operations associated with GSM/GPRS/EDGE systems, packet access procedures, cell reselection procedures within the same RAT, different Cell reselection procedures, cell change command procedures, packet cell change command procedures, blind packet cell change command procedures, or packet switching handover procedures between RATs, or paging operations associated with UMTS systems, connection Build procedures, or hard handover procedures. Correspondingly, the channel priority list can be used to indicate the priority order of the channels that need to be protected in the above-mentioned privileged program. Specifically, the 2G Granted Access Channel, Broadcast Control Channel, Frequency Correction Channel, Synchronization Channel, and Packet Data Channel used in privileged procedures have higher priority than the 3G Paging Channel/Page Indicator Channel ;3G FACHs and dedicated channels used in privileged programs have higher priority than 2G paging channels; 3G FACHs and dedicated channels not used in privileged programs have higher priority than 2G The paging channel has lower priority; the 2G grant access channel, broadcast control channel, frequency correction channel, synchronization channel, and packet data channel that are not used for privileged procedures are compared to the 3G paging channel/paging channel Indicates that the channel has a lower priority.

It should be noted that, in the software architecture shown in FIG. 16 , both the protocol stack processing modules 1610 and 1620 can include multiple protocol layers (not shown), and in order to implement the channel protection described in the present invention, the above-mentioned privileged program list The information related to the channel priority list can be provided by the upper layer protocol layer to the first layer protocol layer (for example: provided by the radio resource control layer to the first layer).

18A and 18B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 7 . In this embodiment, the protocol stack processing module 1610 uses the first SIM to communicate with the GPRS/EDGE system to perform packet access procedures, and the protocol stack processing module 1620 uses the second SIM to communicate with the UMTS system. In particular, the protocol stack processing module 1620 is in the 3G idle mode, and when in the 3G idle mode, the protocol stack processing module 1620 needs to continuously perform paging operations to listen to the 3G paging channel to receive paging messages from the UMTS system. Specifically, the protocol stack processing module 1620 needs to listen to the paging indicator channel or the paging channel during the paging period of each discontinuous reception cycle. For each paging period, the protocol stack processing module 1620 will request the arbitration module 1630 to obtain the allocation of radio frequency resources for paging operations (step S1801). Since there are currently available radio frequency resource allocations, the arbitration module 1630 decides to assign the current Resource allocation is assigned to the paging channel of 3G (step S 1802). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1620 (step S1803 ). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 3G paging channel (step S1804 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends It is no longer necessary to access a unique radio frequency module (step S1805). Upon receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 withdraws the current allocation of radio frequency resources assigned to the 3G paging channel (step S1806). Next, when the protocol stack processing module 1610 needs to execute the packet access procedure, it will request the arbitration module 1630 to allocate radio frequency resources to the permitted access channel during the execution of the packet access procedure (step S1807). Radio frequency resource allocation, so the arbitration module 1630 decides to assign the current radio frequency resource allocation to the grant access channel of 2G (step S1808 ). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1610 (step S 1809). Since the request is granted, the protocol stack processing module 1610 accesses the unique RF module to monitor the 2G granted access channel (step S1810). As shown in Figure 7, for the next two paging periods, the protocol stack processing module 1620 will request the arbitration module 1630 to obtain radio frequency resource allocation for paging operations (steps S1811 and S1813), however, due to the current radio frequency resources The allocation has been assigned to the protocol stack processing module 1610 to monitor the 2G grant access channel, so the arbitration module 1630 rejects the request of the protocol stack processing module 1620 (steps S1812 and S1814). Next, when the packet access procedure ends, the protocol stack processing module 1610 will notify the arbitration module 1630 that it no longer needs to access the unique radio frequency module (step S1815 ). Upon receiving the notification from the protocol stack processing module 1610, the arbitration module 1630 withdraws the current allocation of radio frequency resources assigned to the 2G access channel (step S1816). Afterwards, when receiving a request from the protocol stack processing module 1620 for radio frequency resource allocation for paging operations (step S1817), since there are currently available radio frequency resource allocations, the arbitration module 1630 decides to assign the current radio frequency resource allocation to the 3G paging call channel (step S1818). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1620 (step S1819 ). Next, steps S1820~S1822 are similar to steps S1804~S1806. First, the protocol stack processing module 1620 first accesses the only radio frequency module to listen to the 3G paging channel (step S1820), and because there is no Receive any paging message, or the received paging message is not for this mobile station, so the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends and no longer needs to access the unique radio frequency module (step S1821), and then the arbitration module 1630 withdraws the current radio frequency resource allocation assigned to the 3G paging channel when receiving the notification from the protocol stack processing module 1620 (step S1822).

19A and 19B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 8 . In this embodiment, the protocol stack processing module 1610 uses the first SIM to communicate with the GPRS/EDGE system to perform packet access procedures, and the protocol stack processing module 1620 uses the second SIM to communicate with the UMTS system. In particular, the protocol stack processing module 1610 is in the 2G packet transfer mode for packet switched data services, while the protocol stack processing module 1620 is in the 3G idle mode. Since it is in the 2G packet transmission mode, the protocol stack processing module 1610 requests the arbitration module 1630 to allocate radio frequency resources to the packet data channel for packet switched data services (step S1901). Since there are currently available radio frequency resource allocations, the arbitration module 1630 It is decided to assign the current radio frequency resource allocation to the packet data channel of 2G (step S1902 ). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1610 (step S1903 ). Since the request is granted, the protocol stack processing module 1610 accesses the unique radio frequency module for packet-switched data service over the 2G packet data channel (step S1904 ). Later, when the protocol stack processing module 1620 needs to perform the paging operation to listen to the 3G paging channel to receive the paging message from the UMTS system, it will request the arbitration module 1630 to obtain the radio frequency resource allocation for the paging operation (step S1905 ), since the 3G paging channel has a higher priority than the 2G packet data channel, the arbitration module 1630 decides to assign the current radio frequency resource allocation to the 3G paging channel. Specifically, the arbitration module 1630 will first request the protocol stack processing module 1610 to suspend the ongoing packet-switched data service (step S1906 ). When receiving the request, the protocol stack processing module 1610 suspends the ongoing packet-switched data service and stops accessing the unique radio frequency module (step S1907), and then sends a response to the arbitration module 1630 to indicate that the packet-switched data service has been suspended (step S1908). Next, when receiving the response from the protocol stack processing module 1610, the arbitration module 1630 assigns the current radio resource allocation to the 3G paging channel (step S1909), and then grants the request of the protocol stack processing module 1620 (step S1910). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 3G paging channel (step S1911 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends It is no longer necessary to access a unique radio frequency module (step S1912). When receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 requests the protocol stack processing module 1610 to continue the suspended packet switching data service (step S1913). The protocol stack processing module 1610 re-accesses the only radio frequency module to continue the suspended packet-switched data service (step S1914 ).

Then, during the process of packet switched data service, when it is necessary for the cell reselection procedure (including: the cell reselection procedure within the same RAT and the cell reselection procedure between different RATs), the cell reselection procedure When receiving system information and/or measuring surrounding cells through the 2G broadcast control channel through the group cell change command program or the packet cell change command program, the protocol stack processing module 1610 will request the arbitration module 1630 to assign radio frequency resources to the 2G broadcast control channel (step S1915), since the 2G broadcast control channel used in the above procedure has a higher priority than the 2G packet data channel, the arbitration module 1630 decides to assign the current radio frequency resource allocation to the 2G broadcast control channel (step S1916 ). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1610 (step S 1917). Because the request is granted, the protocol stack processing module 1610 receives the system information of the GPRS/EDGE system through the 2G broadcast control channel or measures the surrounding cells to coordinate packet-switched data by giving away (sacrifice) part of the data transmission and reception associated with the packet-switched data service Operation between service and system information reception/surrounding cell measurement (step S1918 ). During the process of the above procedures (cell reselection procedure, cell change command procedure, group cell change command procedure), when the arbitration module 1630 receives a request from the protocol stack processing module 1620 for radio frequency resource allocation for paging operations (step S1919 and S1921), the request will be rejected because the 2G broadcast control channel has a higher priority than the 3G paging channel (steps S1920 and S1922). When the above procedures (cell reselection procedure, cell change command procedure, group cell change command procedure) end, the protocol stack processing module 1610 will notify the arbitration module 1630 that the 2G broadcast control channel is no longer needed (step S1923) . When receiving the notification from the protocol stack processing module 1610, the arbitration module 1630 knows that the protocol stack processing module 1610 only needs to perform packet-switched data services now, and radio frequency resource allocation only needs to be assigned to 2G packet data channels. Therefore, the arbitration module 1630 can grant the request of the protocol stack processing module 1620 to obtain the radio frequency resource allocation for the paging operation.

It should be noted that for those skilled in the art, according to the embodiments shown in FIGS. 18A, 18B, 19A, and 19B, it is possible to figure out how to use the arbitration module 1630 to coordinate the protocol stack processing modules 1610 and 1620 to change the command in the blind grouping cell. Procedure, blind packet switching handover procedure, cell change command procedure, or cell reselection procedure between different RATs regarding the radio frequency resource allocation of 2G frequency correction channel or synchronization channel, and in packet switching handover procedure about The radio frequency resource allocation of the 2G packet data channel is not described here.

20A and 20B are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 13 . In this embodiment, the protocol stack processing module 1610 uses the first SIM card to communicate with the UMTS system to perform the connection establishment procedure, and the protocol stack processing module 1620 uses the second SIM card to communicate with the GSM/GPRS/EDGE system. In particular, the protocol stack processing module 1610 is in the 3G idle mode, and then executes the connection establishment procedure and enters the cell transfer access channel mode/cell dedicated channel mode, while the protocol stack processing module 1620 is in the 2G idle mode. When in the 2G idle mode, the protocol stack processing module 1620 needs to continuously execute paging operations to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. Specifically, the protocol stack processing module 1620 needs to listen to the paging channel during the paging period of each DRX cycle. Before the protocol stack processing module 1610 needs to execute the connection establishment procedure, the protocol stack processing module 1620 requests the arbitration module 1630 to obtain radio frequency resource allocation for paging operations (step S2001). Since there are currently available radio frequency resource allocations, the arbitration module 1630 It is decided to assign the current radio frequency resource allocation to the 2G paging channel (step S2002). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1620 (step S2003 ). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 2G paging channel (step S2004 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends It is no longer necessary to access a unique radio frequency module (step S2005). Upon receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 withdraws the current allocation of radio frequency resources assigned to the 2G paging channel (step S2006).

Later, when the protocol stack processing module 1610 needs to execute the connection establishment procedure, it will request the arbitration module 1630 to allocate radio frequency resources to the 3G transfer access channel and dedicated channel (step S2007). Since there are currently available radio frequency resource allocations, Therefore, the arbitration module 1630 decides to assign the current radio frequency resource allocation to the 3G TRACH and the dedicated channel (step S2008 ). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1610 (step S2009 ). Since the request is granted, the protocol stack processing module 1610 accesses the only radio module to transmit the RRC connection request message to the UMTS system through the 3G random access channel and monitors the 3G forward access channel to receive the RRC connection establishment message (step S2010). In one embodiment, the protocol stack processing module 1610 may send a physical channel priority adjustment request (CPHY_CHANNEL_PRIORITY_ADJUSTMENT_REQ) message to the only radio frequency module to request to reserve the 3G TRACH. During the connection establishment process, when the protocol stack processing module 1620 receives a request for radio frequency resource allocation for paging operations (step S2011), since the 3G transfer access channel has a higher priority than the 2G paging channel level, so the arbitration module 1630 rejects the request (step S2012). Next, when receiving the connection establishment message from the radio resource control of the UMTS system through the 3G forwarding access channel, the protocol stack processing module 1610 accesses the only radio frequency module to reserve the 3G dedicated channel for the wireless device entering the cell dedicated channel mode set (that is, for executing the above-mentioned A synchronization program) (step S2013). After the wireless setting is completed, the protocol stack processing module 1610 transmits an RRC connection establishment complete message to the UMTS system through the 3G dedicated channel, and notifies the arbitration module 1630 that the connection establishment procedure has ended (step S2014 ). In one embodiment, the completion of the wireless setup may be indicated when a physical downlink initial synchronization indication (CPHY_DL_INIT_SYNC_IND) message is received from the only radio frequency module. When receiving the notification from the protocol stack processing module 1610, the arbitration module 1630 sets the current radio frequency resource allocation assigned to the 3G transfer access channel and the dedicated channel to be reassignable (that is, the ongoing wireless communication of the protocol stack processing module 1610 The job is interruptible) (step S2015). Afterwards, when the protocol stack processing module 1620 needs to perform a paging operation to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system, it will request the arbitration module 1630 to obtain radio frequency resource allocation for the paging operation (Step S2016), since the 3G transfer access channel and the dedicated channel not used in the connection establishment procedure have lower priority than the 2G paging channel, the arbitration module 1630 decides to assign the current radio frequency resource allocation to 2G paging channel. Specifically, the arbitration module 1630 first requests the protocol stack processing module 1610 to suspend any wireless operation through the 3G transfer access channel and the dedicated channel (step S2017 ). When receiving the request, since the protocol stack processing module 1610 is not currently performing any wireless operations, it immediately sends a response to the arbitration module 1630 to indicate that the request has been completed (step S2018 ). Next, when receiving the response from the protocol stack processing module 1610, the arbitration module 1630 assigns the current radio frequency resource allocation to the 2G paging channel (step S2019), and then grants the request of the protocol stack processing module 1620 (step S2020). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 2G paging channel (step S2021 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends It is no longer necessary to access a unique radio frequency module (step S2022). When receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 requests the protocol stack processing module 1610 to continue the suspended wireless operation (step S2023).

21A-21C are message sequence diagrams showing the communication between the arbitration module 1630 and the protocol stack processing modules 1610 and 1620 in the embodiment of FIG. 15 . In this embodiment, the protocol stack processing module 1610 uses the first SIM to communicate with the UMTS system to perform the connection establishment procedure, and the protocol stack processing module 1620 uses the second SIM to communicate with the GSM/GPRS/EDGE system. In particular, the protocol stack processing module 1610 is in the 3G idle mode, then executes the connection establishment procedure to enter the cell transfer access channel mode, and then executes the hard handover procedure to enter the cell dedicated channel mode; and the protocol stack processing module 1620 is in the 2G idle mode model. When in the 2G idle mode, the protocol stack processing module 1620 needs to continuously execute the paging operation to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. Specifically, the protocol stack processing module 1620 needs to listen to the paging channel during the paging period of each DRX cycle. Before the protocol stack processing module 1610 needs to execute the connection establishment procedure, the protocol stack processing module 1620 requests the arbitration module 1630 to obtain the allocation of radio frequency resources for the paging operation (step S2101). Since there are currently available radio frequency resource configurations, the arbitration module 1630 It is decided to assign the current radio frequency resource allocation to the 2G paging channel (step S2102). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1620 (step S2103 ). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 2G paging channel (step S2104 ). Afterwards, because no paging message has been received in the current paging period, or the received paging message is not aimed at this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends. It is no longer necessary to access a unique radio frequency module (step S2105). Upon receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 withdraws the current allocation of radio frequency resources assigned to the 2G paging channel (step S2106).

Later, when the protocol stack processing module 1610 needs to execute the connection establishment procedure, it will request the arbitration module 1630 to allocate radio frequency resources to the 3G transfer access channel (step S2107). Since there are currently available radio frequency resource allocations, the arbitration module 1630 decides to assign the current radio resource allocation to the 3G TX channel (step S2108 ). Then, the arbitration module 1630 grants the request of the protocol stack processing module 1610 (step S2109 ). Since the request is granted, the protocol stack processing module 1610 accesses the only radio module to transmit the RRC connection request message to the UMTS system through the 3G random access channel and monitors the 3G forward access channel to receive the RRC connection establishment message (step S2110). In one embodiment, the protocol stack processing module 1610 may send a physical channel priority adjustment request message to the only radio frequency module to request to reserve the 3G TRACH. During the connection establishment process, when the protocol stack processing module 1620 receives a request for radio resource allocation for paging operations (step S2111), since the 3G transfer access channel has a higher priority than the 2G paging channel level, so the arbitration module 1630 rejects the request (step S2112). Next, when receiving the connection establishment message from the radio resource control of the UMTS system through the 3G forwarding access channel, the protocol stack processing module 1610 accesses the unique radio frequency module for wireless configuration (that is, executes the above-mentioned A synchronization procedure) , wherein the wireless setting also instructs the protocol stack processing module 1610 to stay in the cell forwarding access channel mode (step S2113 ). After the wireless setting is completed, the protocol stack processing module 1610 transmits a RRC connection establishment complete message to the UMTS system through the 3G forward access channel, and notifies the arbitration module 1630 that the connection establishment procedure has ended (step S2114 ). In one embodiment, the completion of the wireless configuration may be indicated when a physical downlink initial synchronization indication message is received from the only radio frequency module. When receiving the notification from the protocol stack processing module 1610, the arbitration module 1630 sets the current radio frequency resource allocation assigned to the 3G transfer access channel as re-assignable (that is, the ongoing wireless operation of the protocol stack processing module 1610 is available interrupted) (step S2115). Afterwards, when the protocol stack processing module 1620 needs to perform a paging operation to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system, it will request the arbitration module 1630 to obtain radio frequency resource allocation for the paging operation (Step S2116), since the 3G transfer access channel not used in the connection establishment procedure has a lower priority than the 2G paging channel, the arbitration module 1630 decides to assign the current radio frequency resource allocation to the 2G paging channel call channel. To be specific, the arbitration module 1630 will first request the protocol stack processing module 1610 to suspend any wireless service through the 3G transfer access channel (step S2117 ). When receiving the request, since the protocol stack processing module 1610 is not currently performing any wireless operations, it immediately sends a response to the arbitration module 1630 to indicate that the request has been completed (step S2118 ). Next, when receiving the response from the protocol stack processing module 1610, the arbitration module 1630 assigns the current radio frequency resource allocation to the 2G paging channel (step S2119), and then grants the request of the protocol stack processing module 1620 (step S2120). Since the request is granted, the protocol stack processing module 1620 accesses the only radio module to listen to the 2G paging channel (step S2121 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, then the protocol stack processing module 1620 notifies the arbitration module 1630 when the paging period ends It is no longer necessary to access a unique radio frequency module (step S2122). When receiving the notification from the protocol stack processing module 1620, the arbitration module 1630 requests the protocol stack processing module 1610 to continue the interrupted wireless operation (step S2123).

Next, when the protocol stack processing module 1610 needs to perform a hard handover procedure (that is, when receiving a hard handover command from the UMTS system, such as: a physical channel reset message, a wireless bearer reset message, a wireless bearer setup message , wireless bearer release message, or transmission channel reset message), will request the arbitration module 1630 to assign the radio frequency resource allocation to the 3G dedicated channel (step S2124), and the arbitration module 1630 also decides to assign the radio frequency resource allocation to the 3G dedicated channel channel (step S2125), so the request of the protocol stack processing module 1610 is granted (step S2126). Because the request is granted, the protocol stack processing module 1610 accesses the unique radio frequency module for wireless setup (i.e., performing the A synchronization procedure described above), which also instructs the protocol stack processing module 1610 to enter cell-specific channel mode (step S2127). After the wireless setting is completed, the protocol stack processing module 1610 transmits a hard handover response through the 3G dedicated channel (for example: physical channel reset complete message, wireless bearer reset complete message, wireless bearer setup complete message, wireless bearer release Complete message, or transmission channel reset complete message) to the UMTS system, and notify the arbitration module 1630 that the hard handover procedure has ended (step S2128). In one embodiment, the completion of the wireless configuration may be indicated when a physical downlink initial synchronization indication message is received from the only radio frequency module. When receiving the notification from the protocol stack processing module 1610, the arbitration module 1630 sets the current radio frequency resource allocation assigned to the 3G dedicated channel as being able to be reassigned (that is, the ongoing wireless operation of the protocol stack processing module 1610 can be interrupted) of) (step S2129).

Fig. 22 is a schematic diagram of the software architecture of the mobile station according to another embodiment of the present invention. An example of the software architecture includes protocol stack processing modules 2210 and 2220 . When the protocol stack processing module 2210 is executed by the processing unit or Baseband MCU, it is used to communicate with the first service network (for example: service network 120) using the first subscriber identification card (for example: subscriber identity card 10); and the protocol stack When the processing module 2220 is executed by the processing unit or the Baseband MCU, it is used to communicate with the second service network (for example: the service network 130 ) by using the second subscriber identity card (for example: subscriber identity card 20 ). Different from the software architecture shown in FIG. 16 , the protocol stack processing modules 2210 and 2220 directly communicate with each other to coordinate their respective operations. To be clear, when the protocol stack processing modules 2210 and 2220 both request to obtain the control right of the only radio frequency module for wireless communication at the same time period, it means that an operation conflict occurs, and then they communicate with each other to determine the allocation of radio frequency resources for this time period. A protocol stack processing module 2210 or 2220.

FIG. 23 is a flowchart of a method for coordinating operations by the protocol stack processing modules 2210 and 2220 according to an embodiment of the present invention. Firstly, the protocol stack processing modules 2210 and 2220 are respectively associated with different service networks and are in an idle mode, and can send requests to each other to negotiate who can obtain radio frequency resource allocation for wireless operations. At the beginning of the communication operation coordination method, when one of the protocol stack processing modules 2210 and 2220 needs to communicate with the first service network, it will send a request to the other, wherein the request indicates the channel to be used and the What program or operation is the channel used for (step S2301). In one embodiment, if the wireless operation to be performed above is a paging operation, the request may indicate that the channel to be used is a paging channel and the paging channel is used for paging job. In another embodiment, if the wireless operation to be performed is a packet access procedure, the request may indicate that the channel to be used is a granted access channel and that the permitted access channel is used for the packet access procedure. When receiving the request, the other of the protocol stack processing modules 2210 and 2220 will judge whether the request will conflict with the wireless operation it is performing with the second service network (step S2302), and if so, further judge that it is Whether the ongoing wireless operation can be interrupted (step S2303). Specifically, the other of the protocol stack processing modules 2210 and 2220 can first determine whether the channel indicated by the request is used for a program with privileges, and if so, then further determine that the channel indicated by the request is in progress compared with itself. The channel used by the wireless job has a higher priority. If it is judged to be yes, the channel used by the wireless operation in progress can be regarded as interrupted, so the other of the protocol stack processing modules 2210 and 2220 suspends the wireless operation in progress (step S2304), Then send a response to the other party to indicate that the request has been accepted (step S2305 ), so that one of the protocol stack processing modules 2210 and 2220 can obtain the current radio frequency resource allocation to communicate with the first service network. Next, when receiving a notification from one of the protocol stack processing modules 2210 and 2220 that radio resource allocation is no longer required, the other of the protocol stack processing modules 2210 and 2220 resumes the suspended wireless operation (step S2306 ). In step S2303, if another ongoing wireless operation in the protocol stack processing modules 2210 and 2220 cannot be interrupted, a response is sent to the other party indicating that the request has been rejected (step S2307). In step S2302, if the request will not cause a job conflict, the other of the protocol stack processing modules 2210 and 2220 may send a response to the other party to indicate that the request has been accepted (step S2308), and then the protocol stack processing module When one of 2210 and 2220 notifies that radio frequency resource allocation is no longer needed, the current radio frequency resource allocation is withdrawn (step S2309 ).

In one embodiment, a list of privileged procedures can be used to indicate privileged procedures, including: paging operations associated with GSM/GPRS/EDGE systems, packet access procedures, cell reselection procedures within the same RAT, different Cell reselection procedures, cell change command procedures, packet cell change command procedures, blind packet cell change command procedures, or packet switching handover procedures between RATs, or paging operations associated with UMTS systems, connection Build procedures, or hard handover procedures. Correspondingly, the channel priority list can be used to indicate the priority order of the channels that need to be protected in the above-mentioned privileged program. Specifically, the 2G Granted Access Channel, Broadcast Control Channel, Frequency Correction Channel, Synchronization Channel, and Packet Data Channel used in privileged procedures have higher priority than the 3G Paging Channel/Page Indicator Channel ;3G FACHs and dedicated channels used in privileged programs have higher priority than 2G paging channels; 3G FACHs and dedicated channels not used in privileged programs have higher priority than 2G The paging channel has lower priority; the 2G grant access channel, broadcast control channel, frequency correction channel, synchronization channel, and packet data channel that are not used for privileged procedures are compared to the 3G paging channel/paging channel Indicates that the channel has a lower priority.

It should be noted that, in the software architecture shown in FIG. 22 , both the protocol stack processing modules 2210 and 2220 can include multiple protocol layers (not shown), and in order to implement the channel protection described in the present invention, the above-mentioned privileged program list The information related to the channel priority list can be provided by the upper layer protocol layer to the first layer protocol layer (for example: provided by the radio resource control layer to the first layer).

FIG. 24 is a message sequence diagram showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 7 . In this embodiment, the protocol stack processing module 2210 uses the first SIM to communicate with the GPRS/EDGE system to perform the packet access procedure, and the protocol stack processing module 2220 uses the second SIM to communicate with the UMTS system. In particular, the protocol stack processing module 2220 is in the 3G idle mode, and when in the 3G idle mode, the protocol stack processing module 2220 needs to continuously execute the paging operation to listen to the 3G paging channel to receive paging messages from the UMTS system. For a paging period, the protocol stack processing module 2220 sends a request to the protocol stack processing module 2210, wherein the request indicates that the channel to be used is a 3G paging channel and that the channel is used for paging operations (step S2401), because The protocol stack processing module 2210 does not need to execute the packet access program at present, so it decides to accept the request (step S2402). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 3G paging channel (step S2403 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique radio frequency module (step S2404). Then, when the protocol stack processing module 2210 needs to perform the packet access program, a request will be sent to the protocol stack processing module 2220, wherein the request indicates that the channel to be used is a 2G access channel and that the channel is used for grouping To access the program (step S2405), since the protocol stack processing module 2220 does not need to execute any operation or program at present, it decides to accept the request (step S2406). Since the request is accepted, the protocol stack processing module 2210 accesses the only radio frequency module to monitor the 2G access channel (step S2407). As shown in Figure 7, for the next two paging periods, the protocol stack processing module 2220 will send a request to the protocol stack processing module 2210 to obtain radio frequency resource allocation for paging operations (steps S2408 and S2410), however, due to The current radio frequency resource allocation has been assigned to the 2G grant access channel, and the 2G grant access channel for the packet access procedure has a higher priority than the 3G paging channel, so the protocol stack processing module 2210 rejects The protocol stack processes the request of the module 2220 (steps S2409 and S2411). Next, when the packet access procedure ends, the protocol stack processing module 2210 stops accessing the unique radio frequency module (step S2412 ). Afterwards, when receiving the request from the protocol stack processing module 2220 for allocation of radio frequency resources for the paging operation (step S2413), since the protocol stack processing module 2210 does not need to execute any operation or program at present, it decides to accept the request (step S2414). Then, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 3G paging channel (step S2415), and because no paging message is received in the current paging period, or the received paging message Not for this mobile station, so the protocol stack processing module 2220 stops accessing the unique radio frequency module at the end of the paging period (step S2416).

FIG. 25 is a message sequence diagram showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 8 . In this embodiment, the protocol stack processing module 2210 uses the first SIM to communicate with the GPRS/EDGE system to perform the packet access procedure, and the protocol stack processing module 2220 uses the second SIM to communicate with the UMTS system. In particular, the protocol stack processing module 2210 is in the 2G packet transfer mode for packet switched data services, while the protocol stack processing module 2220 is in the 3G idle mode. Because it is in the 2G packet transmission mode, the protocol stack processing module 2210 sends a request to the protocol stack processing module 2220, wherein the request indicates that the channel to be used is a 2G packet data channel, and the channel is used for packet switching data services (step S2501 ), since the protocol stack processing module 2220 does not need to execute any job or program at present, it decides to accept the request of the protocol stack processing module 2210 (step S2502 ). Because the request is accepted, the protocol stack processing module 2210 accesses the only radio frequency module to perform packet-switched data service through the 2G packet data channel (step S2503 ). Later, when the protocol stack processing module 2220 needs to perform the paging operation to listen to the paging channel of 3G to receive the paging message from the UMTS system, it will send a request to the protocol stack processing module 2210, wherein the request indicates the desired The channel is a 3G paging channel, and this channel is used for paging operations (step S2504), since the 3G paging channel has a higher priority than the 2G packet data channel, the protocol stack processing module 2210 stops Access the only radio frequency module to suspend the ongoing packet switched data service (step S2505), and then accept the request of the protocol stack processing module 2220 (step S2506). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 3G paging channel (step S2507 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique The radio frequency module (step S2508 ), and then notifies the protocol stack processing module 2210 that it no longer needs to access the unique radio frequency module (step S2509 ). When receiving the notification from the protocol stack processing module 2220, the protocol stack processing module 2210 continues the suspended packet switching data service (step S2510).

Then, during the process of packet switched data service, when it is necessary for the cell reselection procedure (including: the cell reselection procedure within the same RAT and the cell reselection procedure between different RATs), the cell reselection procedure When receiving system information and/or measuring surrounding cells through the 2G broadcast control channel through a command program or a packet cell change command program, the protocol stack processing module 2210 will coordinate packet-switched data services and system information reception/surrounding cell measurement Operation, specifically speaking, since the 2G broadcast control channel used in the above procedure has a higher priority than the 2G packet data channel, the protocol stack processing module 2210 transfers part of the data associated with the packet switched data service to send and receive Receive system information of the GPRS/EDGE system or measure surrounding cells through the 2G broadcast control channel (step S2511 ). During the process of the above procedure (cell reselection procedure, cell change command procedure, or packet cell change command procedure), when receiving a request from the protocol stack processing module 2220 for radio frequency resource allocation for paging operations (steps S2512 and S2514), the protocol stack processing module 2210 rejects the request because the 2G broadcast control channel has a higher priority than the 3G paging channel (steps S2513 and S2515). When the above procedure (cell reselection procedure, cell change command procedure, or packet cell change command procedure) ends, the protocol stack processing module 2210 stops sending and receiving part of the data associated with the packet switched data service to the broadcast control of 2G The channel receives system information of the GPRS/EDGE system or measures surrounding cells (step S2516). Afterwards, the packet-switched data service performed by the protocol stack processing module 2210 may be interrupted upon receiving a request for allocation of radio frequency resources for paging operations from the protocol stack processing module 2220 .

It should be noted that those skilled in the art can figure out how to use the protocol stack processing modules 2210 and 2220 to coordinate the command procedure of changing the blind packet cell and blind packet switching according to the embodiments shown in FIG. 24 and FIG. 25 . RF resource allocation for 2G frequency correction channel or synchronization channel in handover procedure, cell change order procedure, or cell reselection procedure between different RATs, and 2G packet data channel in packet switching handover procedure The allocation of radio frequency resources is omitted here.

26A and 26B are message sequence diagrams showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 13 . In this embodiment, the protocol stack processing module 2210 uses the first SIM card to communicate with the UMTS system to perform the connection establishment procedure, and the protocol stack processing module 2220 uses the second SIM card to communicate with the GSM/GPRS/EDGE system. In particular, the protocol stack processing module 2210 is in the 3G idle mode, and then executes the connection establishment procedure and enters the cell transfer access channel mode/cell dedicated channel mode, while the protocol stack processing module 2220 is in the 2G idle mode. When in the 2G idle mode, the protocol stack processing module 2220 needs to continuously execute the paging operation to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. Specifically, the protocol stack processing module 2220 needs to listen to the paging channel during the paging period of each DRX cycle. Before the protocol stack processing module 2210 needs to perform the online establishment procedure, the protocol stack processing module 2220 sends a request to the protocol stack processing module 2210, wherein the request indicates that the channel to be used is a 2G paging channel and that the channel is used for paging call operation (step S2601), since the protocol stack processing module 2210 does not need to execute the packet access program at present, it decides to accept the request (step S2602). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 2G paging channel (step S2603 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique radio frequency module (step S2604).

Later, when the protocol stack processing module 2210 needs to perform the connection establishment program, a request will be sent to the protocol stack processing module 2220, wherein the request indicates that the channel to be used is the transfer access channel and the dedicated channel of 3G, and the channel For the connection establishment procedure (step S2605), since the protocol stack processing module 2220 does not need to execute the packet access procedure at present, it decides to accept the request (step S2606). Because the request is accepted, the protocol stack processing module 2210 accesses the only radio module to transmit the RRC connection request message to the UMTS system through the 3G random access channel and monitor the 3G forward access channel to receive the RRC request message Online establishment message (step S2607). In one embodiment, the protocol stack processing module 2210 may send a physical channel priority adjustment request message to the only radio frequency module to request to reserve the 3G TX access channel. During the connection establishment process, when the protocol stack processing module 2220 requests radio resource allocation for paging operations (step S2608), since the 3G transfer access channel used in the connection establishment process is compared with the 2G paging The channel has a higher priority, so the protocol stack processing module 2210 rejects the request (step S2609). Next, when receiving the connection establishment message from the radio resource control of the UMTS system through the 3G forwarding access channel, the protocol stack processing module 2210 accesses the only radio frequency module to protect the 3G dedicated channel for the wireless device entering the cell dedicated channel mode. determined (that is, for executing the above-mentioned A synchronization program) (step S2610). After the wireless setting is completed, the protocol stack processing module 2210 transmits the connection establishment completion message of radio resource control to the UMTS system through the 3G dedicated channel, and stops protecting the 3G dedicated channel from the specific operation of the protocol stack processing module 2220 (for example: seeking call operation, measurement operation, cell scanning operation, etc.), and then end the connection establishment procedure (step S2611). In one embodiment, the completion of the wireless setup can be indicated when a physical downlink initial synchronization indication message is received from the only radio frequency module.

Afterwards, when the protocol stack processing module 2220 needs to perform the paging operation to listen to the paging channel of 2G to receive the paging message from the GSM/GPRS/EDGE system, it will send a request to the protocol stack processing module 2210, wherein the request indicates The channel to be used is the paging channel of 2G, and this channel is used for paging operation (step S2612), because the 3G transfer access channel and the dedicated channel not used in the connection establishment procedure are compared with the paging channel of 2G It has a lower priority, so the protocol stack processing module 2210 stops accessing the only radio frequency module to suspend the wireless service through the 3G dedicated channel (step S2613), and then accepts the request of the protocol stack processing module 2220 (step S2614). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 2G paging channel (step S2615). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique The radio frequency module (step S2616 ), and then notifies the protocol stack processing module 2210 that it no longer needs to access the unique radio frequency module (step S2617 ). When receiving the notification from the protocol stack processing module 2220, the protocol stack processing module 2210 continues the suspended wireless operation (step S2618).

27A and 27B are message sequence diagrams showing the communication between the protocol stack processing modules 2210 and 2220 in the embodiment of FIG. 15 . In this embodiment, the protocol stack processing module 2210 uses the first SIM card to communicate with the UMTS system to perform the connection establishment procedure, and the protocol stack processing module 2220 uses the second SIM card to communicate with the GSM/GPRS/EDGE system. In particular, the protocol stack processing module 2210 is in the 3G idle mode, then executes the connection establishment procedure to enter the cell transfer access channel mode, and then executes the hard handover procedure to enter the cell dedicated channel mode; and the protocol stack processing module 2220 is in the 2G idle mode model. When in the 2G idle mode, the protocol stack processing module 2220 needs to continuously execute the paging operation to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system. Specifically, the protocol stack processing module 2220 needs to listen to the paging channel during the paging period of each DRX cycle. Before the protocol stack processing module 2210 needs to perform the online establishment program, the protocol stack processing module 2220 sends a request to the protocol stack processing module 2210, wherein the request indicates that the channel to be used is a 2G paging channel, and the channel is used for paging Call operation (step S2701), since the protocol stack processing module 2210 does not need to execute the packet access program at present, it decides to accept the request (step S2702). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 2G paging channel (step S2703 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique radio frequency module (step S2704).

Later, when the protocol stack processing module 2210 needs to perform the connection establishment program, a request will be sent to the protocol stack processing module 2220, wherein the request indicates that the channel to be used is the transfer access channel of 3G and that the channel is used for connection Establish the program (step S2705), and because the protocol stack processing module 2220 does not need to execute the packet access program at present, it decides to accept the request (step S2706). Because the request is accepted, the protocol stack processing module 2210 accesses the only radio module to transmit the RRC connection request message to the UMTS system through the 3G random access channel and monitor the 3G forward access channel to receive the RRC request message Online establishment message (step S2707). In one embodiment, the protocol stack processing module 2210 may send a physical channel priority adjustment request message to the only radio frequency module to request to reserve the 3G TX access channel. During the process of establishing the connection, when the protocol stack processing module 2220 requests the allocation of radio frequency resources for the paging operation (step S2708), since the 3G transfer access channel used in the connection establishment process is compared with the 2G paging The channel has a higher priority, so the protocol stack processing module 2210 rejects the request (step S2709). Next, when receiving the RRC connection establishment message from the UMTS system through the 3G FACH, the protocol stack processing module 2210 accesses the unique radio frequency module to continue protecting the 3G FACH for entering cell FACH Wireless setting of channel mode (ie, for performing the above-mentioned A synchronization procedure) (step S2710 ). After the wireless setting is completed, the protocol stack processing module 2210 transmits the connection establishment completion message of the radio resource control to the UMTS system through the 3G dedicated channel, and stops protecting the 3G dedicated channel from being used by the specific operation of the protocol stack processing module 2220 (for example: seeking call operation, measurement operation, cell scanning operation, etc.), so the connection establishment procedure ends (step S2711). In one embodiment, the completion of the wireless setup can be indicated when a physical downlink initial synchronization indication message is received from the only radio frequency module.

Afterwards, when the protocol stack processing module 2220 needs to perform the paging operation to listen to the paging channel of 2G to receive the paging message from the GSM/GPRS/EDGE system, it will send a request to the protocol stack processing module 2210, wherein the request indicates The channel to be used is the 2G paging channel, and the channel is used for paging operations (step S2712), since the 3G forward access channel not used in the connection establishment procedure has a lower priority, so the protocol stack processing module 2210 stops accessing the only radio frequency module to suspend the wireless service through the 3G transfer access channel (step S2713), and then accepts the request of the protocol stack processing module 2220 (step S2714). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 2G paging channel (step S2715 ). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique The radio frequency module (step S2716 ), and then notifies the protocol stack processing module 2210 that it no longer needs to access the unique radio frequency module (step S2717 ). When receiving the notification from the protocol stack processing module 2220, the protocol stack processing module 2210 continues the suspended wireless operation (step S2718).

Next, when the protocol stack processing module 2210 needs to execute the hard handover procedure (that is, when receiving a hard handover command from the UMTS system, for example: a physical channel reset message, a wireless bearer reset message, a wireless bearer setup message , wireless bearer release message, or transmission channel reset message), then access the only radio frequency module to protect the 3G dedicated channel for wireless setting of entering the cell dedicated channel mode (that is, for performing the above-mentioned A synchronization procedure) , so that the 3G dedicated channel will not be interrupted by specific operations of the protocol stack processing module 2220 (eg, paging operations, measurement operations, cell scanning operations, etc.) (step S2719 ). During the hard handover process, when the protocol stack processing module 2220 needs to perform paging operations to listen to the 2G paging channel to receive paging messages from the GSM/GPRS/EDGE system, it will send a request to the protocol stack for processing Module 2210, wherein the request indicates that the channel to be used is a 2G paging channel, and the channel is used for paging operations (step S2720), since the 3G dedicated channel used in the hard handover procedure is compared with the 2G The paging channel has a higher priority, so the protocol stack processing module 2210 rejects the request (step S2721). Later, after the wireless setting for entering the cell-dedicated channel mode is completed, the protocol stack processing module 2210 transmits a hard handover response (for example: a physical channel reset complete message, a wireless bearer reset complete message, a wireless bearer Set up a complete message, a wireless bearer release complete message, or a transmission channel reset complete message) to the UMTS system, and stop protecting the 3G dedicated channel from the specific operations of the protocol stack processing module 2220 (for example: paging operations, measurement operations, cell scan job, etc.), so the hard handover process ends (step S2722). In one embodiment, the completion of the wireless setup can be indicated when a physical downlink initial synchronization indication message is received from the only radio frequency module.

Next, when the protocol stack processing module 2220 needs to perform a paging operation, it will send a request to the protocol stack processing module 2210, wherein the request indicates that the channel to be used is a 2G paging channel and that the channel is used for the paging operation (Step S2723), since the 3G dedicated channel not used in the hard handover procedure has a lower priority than the 2G paging channel, the protocol stack processing module 2210 stops accessing the only radio frequency module to suspend passing through the 3G dedicated channel Perform the wireless operation (step S2724), and then accept the request of the protocol stack processing module 2220 (step S2725). Since the request is accepted, the protocol stack processing module 2220 accesses the only radio frequency module to listen to the 2G paging channel (step S2726). Afterwards, because no paging message is received in the current paging period, or the received paging message is not for this mobile station, the protocol stack processing module 2220 stops accessing the unique The radio frequency module (step S2727 ), and then notifies the protocol stack processing module 2210 that it no longer needs to access the unique radio frequency module (step S2728 ). When receiving the notification from the protocol stack processing module 2220, the protocol stack processing module 2210 continues the suspended wireless operation (step S2729).

In addition to the software architectures shown in FIG. 16 and FIG. 22 , the present invention is also applicable to an independent software architecture, where there is no communication between the protocol stack processing modules and no arbitration module exists. To further illustrate, a register (register) can be maintained in the only radio frequency module, and when the protocol stack processing module needs to access the radio frequency module, it will try to write to the register, and if the register has been written, the protocol stack will be rejected The access of the processing module; otherwise, if the register is not written, the access of the protocol stack processing module is accepted. In one embodiment, the register is used to record information about whether the radio frequency module is occupied, and to record which channel the radio frequency module is used for if it is occupied. Or, when each writing occurs, if the register has been written and the radio frequency module is now occupied by a channel with a higher priority, then deny the access of the protocol stack processing module; otherwise, if the register has been written When the radio frequency module is currently occupied by a lower priority channel, the access of the protocol stack processing module is accepted. For those skilled in the art, when they can figure out how to process the protocol stack in the above-mentioned independent software architecture according to the software architecture shown in FIG. 16 and FIG. 22 and the embodiments described in FIGS. 17-19 and FIG. The writing operation of the processing module is not repeated here.

It should be noted that each of the above-mentioned software structures can be implemented in the form of program code and stored in a machine-readable storage medium, such as: magnetic disk, semiconductor, magnetic disk, optical disk or others, wherein the optical disk can be, for example: read-only memory Compact disc (CD-ROM), digital read-only video disc (DVD-ROM), etc. The machine-readable storage medium can be maintained in the website server, so that the client computer can download the program code therein through the network. When the program code is executed by the processing unit or Baseband MCU, the communication operation of the present invention can be performed. Coordination method (eg: the method shown in Figure 17 and Figure 23).

The above descriptions are only preferred embodiments of the present invention, and the present invention is not limited thereto. Those skilled in the art can obtain other additional features and advantages of the present invention by making some changes and modifications without departing from the spirit and scope of the present invention. Although wireless communication technologies based on GSM/GPRS/EDGE and UMTS are used in the above embodiments, the present invention is not limited thereto. For example, the present invention is also applicable to other wireless communication technologies, such as: CDMA-2000, TD-SCDMA, WiMAX, LTE and TD-LTE. Therefore, the scope of protection of the present invention should be defined by the appended claims.

It should be noted that the ordinal numbers "first", "second", and "third" etc. used in the claims do not mean that there is any chronological order, priority difference, or The order of other relations is used to distinguish different components with the same name.

Claims (24)

1. radio communication device comprises:

Baseband chip, monitor first channel relevant to the first service network, a plurality of candidate cells that are positioned at above-mentioned first service network with incoming call or the measurement that receives from above-mentioned first service network, by second channel carry out and the second service network between wireless receiving and dispatching, and be when carrying out for preset program in above-mentioned wireless receiving and dispatching, keep above-mentioned wireless receiving and dispatching not interrupted by the monitoring of above-mentioned the first channel.

2. according to claim 1 radio communication device, it is characterized in that above-mentioned baseband chip keeps above-mentioned wireless receiving and dispatching more not comprised by the step that the monitoring of above-mentioned the first channel is interrupted: above-mentioned wireless receiving and dispatching carry out process in suspend the monitoring of above-mentioned the first channel, wherein above-mentioned baseband chip more continues the monitoring of above-mentioned the first channel when above-mentioned wireless receiving and dispatching finishes.

3. according to claim 1 radio communication device is characterized in that above-mentioned baseband chip is not more when carrying out for above-mentioned preset program in above-mentioned wireless receiving and dispatching, and the above-mentioned wireless receiving and dispatching of sacrificial section is to monitor above-mentioned the first channel.

4. according to claim 1 radio communication device, is characterized in that above-mentioned second service network is global system for mobile communications, general packet radio service system or global enhanced data transmission system.

5. according to claim 4 radio communication device, it is characterized in that above-mentioned preset program is the packet access program, and above-mentioned second channel is Access granted Channel AGCH.

6. according to claim 4 radio communication device, it is characterized in that above-mentioned preset program is to change command program or packet cell change command program with the cell reselection procedures between the cell reselection procedures in the radio access technology, different radio access technology, residential quarter, and above-mentioned second channel is Broadcast Control Channel.

7. according to claim 4 radio communication device, it is characterized in that above-mentioned preset program is that blind packet cell is changed the cell reselection procedures between command program, blind packet switching handover procedure, residential quarter change command program or different radio access technology, and above-mentioned second channel is frequency correction channel or synchronizing channel.

8. according to claim 4 radio communication device, it is characterized in that above-mentioned preset program is the packet switching handover procedure, and above-mentioned second channel is Packet Data Channel.

9. according to claim 1 radio communication device, is characterized in that above-mentioned second service network is universal mobile telecommunications system.

10. according to claim 9 radio communication device, it is characterized in that above-mentioned preset program is online creation facilities program (CFP) or rigid handover procedure, and above-mentioned second channel is for passing on access channel or dedicated channel.

11. radio communication device according to claim 9 is characterized in that above-mentioned the first channel is paging channel, in order to receive above-mentioned incoming call.

12. radio communication device according to claim 1, the monitoring that it is characterized in that above-mentioned the first channel are to use the first user identification card and carry out, and above-mentioned wireless receiving and dispatching is to use the second Subscriber Identity Module and carry out.

13. a communication operations coordination approach is applicable to coordination and the communication operations that different service networks carries out in radio communication device, comprising:

Monitor first channel relevant to the first service network to receive from the incoming call of above-mentioned first service network or to be positioned at a plurality of candidate cells of above-mentioned first service network with measurement;

By second channel carry out and the second service network between wireless receiving and dispatching; And

Be when carrying out for preset program in above-mentioned wireless receiving and dispatching, keep above-mentioned wireless receiving and dispatching not interrupted by the monitoring of above-mentioned the first channel.

14. described communication operations coordination approach according to claim 13, it is characterized in that keeping step that above-mentioned wireless receiving and dispatching is not interrupted by the monitoring of above-mentioned the first channel more to be included in the monitoring of carrying out suspending in process above-mentioned the first channel of above-mentioned wireless receiving and dispatching, and above-mentioned communication operations coordination approach more comprises:

When finishing, continues above-mentioned wireless receiving and dispatching the monitoring of above-mentioned the first channel.

15. described communication operations coordination approach according to claim 13 is characterized in that more comprising:

Be not when carrying out for above-mentioned preset program in above-mentioned wireless receiving and dispatching, the above-mentioned wireless receiving and dispatching of sacrificial section is to monitor above-mentioned the first channel.

16. described communication operations coordination approach, is characterized in that above-mentioned second service network is global system for mobile communications, general packet radio service system or global enhanced data transmission system according to claim 13.

17. described communication operations coordination approach, it is characterized in that above-mentioned preset program is the packet access program, and above-mentioned second channel is Access granted Channel AGCH according to claim 16.

18. described communication operations coordination approach according to claim 16, it is characterized in that above-mentioned preset program is to change command program or packet cell change command program with the cell reselection procedures between the cell reselection procedures in the radio access technology, different radio access technology, residential quarter, and above-mentioned second channel is Broadcast Control Channel.

19. described communication operations coordination approach according to claim 16, it is characterized in that above-mentioned preset program is that blind packet cell is changed the cell reselection procedures between command program, blind packet switching handover procedure, residential quarter change command program or different radio access technology, and above-mentioned second channel is frequency correction channel or synchronizing channel.

20. described communication operations coordination approach, it is characterized in that above-mentioned preset program is the packet switching handover procedure, and above-mentioned second channel is Packet Data Channel according to claim 16.

21. described communication operations coordination approach, is characterized in that above-mentioned second service network is universal mobile telecommunications system according to claim 13.

22. described communication operations coordination approach, it is characterized in that above-mentioned preset program is online creation facilities program (CFP) or rigid handover procedure, and above-mentioned second channel is for passing on access channel or dedicated channel according to claim 21.

23. described communication operations coordination approach, is characterized in that above-mentioned the first channel is paging channel, in order to receive above-mentioned incoming call according to claim 21.

24. described communication operations coordination approach according to claim 13, the monitoring that it is characterized in that above-mentioned the first channel are to use the first user identification card and carry out, and above-mentioned wireless receiving and dispatching is to use the second Subscriber Identity Module and carry out.

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