WO2024198926A1 - Paging method, communication apparatus, communication base station, and computer-readable medium - Google Patents

Abstract

Embodiments of the present application provide a paging method, a communication apparatus, a communication base station, and a computer-readable storage medium. The paging method comprises: receiving first paging information by means of a first processing unit of a communication apparatus, and obtaining a paging target group identifier according to the first paging information, the paging target group identifier being used for indicating at least one group to be paged to which a communication apparatus to be paged pertains; and according to the paging target group identifier, performing first paging by means of the first processing unit of the communication apparatus.

Description

Paging method, communication device, communication base station and computer readable medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application CN 202310382817.9, filed on March 31, 2023, entitled “A paging method, a communication device, a communication base station and a computer-readable medium,” the entire contents of which are incorporated herein by reference.

Technical Field

The embodiments of the present application relate to the field of communication technology, and in particular, to a paging method, a communication device, a communication base station, and a computer-readable medium.

Background Art

The application scenarios of the 17th version (Rel-17) of the 3rd Generation Partnership Project (3GPP) standard include industrial Internet of Things and various forms of Internet of Things terminals. These applications have stringent requirements on the cost, size and power consumption of the terminals. The current energy-saving technology of 5G terminals is still far from the power consumption requirements of Internet of Things terminals.

In the related technology, the terminal detects a paging occasion (PO) once in each discontinuous reception (DRX) cycle. If the terminal detects the paging physical downlink control channel (PDCCH), it will continue to receive the paging message scheduled by the PDCCH. The paging message will indicate the ID of the terminal that is actually being paged. However, depending on the paging capability of the communication system, multiple terminals may still use the same PO in the end. As a result, as long as one terminal is paged, other terminals using the same PO will detect the paging PDCCH, and then receive and decode the paging message, causing this.

Some terminals consume unnecessary paging detection energy, and usually the probability of a terminal being paged is relatively small, which causes the problem of paging detection error probability. Therefore, how to reduce the paging detection error probability and reduce terminal power consumption is a problem that needs to be solved urgently.

Summary of the invention

The embodiments of the present application provide a paging method, a communication device, a communication base station, and a computer-readable medium, which are intended to reduce the probability of paging detection errors, save unnecessary power consumption, and thus reduce terminal power consumption.

An embodiment of the present application provides a paging method, which is applied to a communication device, wherein the communication device includes a first processing unit and a second processing unit, the first processing unit is a low-power processing unit, and the method includes: receiving a first paging message through the first processing unit of the communication device, and obtaining a paging target group identifier based on the first paging message, wherein the paging target group identifier is used to indicate at least one paging group to which the communication device to be paged belongs; and performing a first paging through the first processing unit of the communication device based on the paging target group identifier.

An embodiment of the present application provides a paging method, which is applied to a communication device, wherein the communication device includes a first processing unit and a second processing unit, and the first processing unit is a low-power processing unit. The method includes: receiving a first paging message through the first processing unit of the communication device, wherein the first paging message includes a first indication and a second indication; obtaining a paging target group identifier according to the first indication, wherein the paging target group identifier is used to indicate at least one paging group to which the communication device to be paged belongs; and performing a first paging through the first processing unit of the communication device according to the paging target group identifier.

An embodiment of the present application provides a paging method, which is applied to a base station, and the method includes: sending a first paging message carrying a paging target group identifier, wherein the paging target group identifier is used to indicate at least one paging group to which a communication device to be paged belongs, and the communication device to be paged is at least one; sending a second paging message carrying a paging target subgroup identifier, wherein the paging target subgroup identifier is used to indicate at least one paging target subgroup to which the communication device to be paged belongs; and sending a third paging message carrying paging target identity information, wherein the paging target identity information is used to indicate the communication device to be paged.

The embodiment of the present application provides a paging method, which is applied to a base station, and the method includes: sending a first paging message carrying target group information, and at least one communication device receiving the first paging message performs matching according to the target group information, and obtains a first matching result; sending a second paging message carrying target subgroup information, and at least one communication device receiving the second paging message performs matching according to the target subgroup information, and obtains a second matching result. sending a third paging message carrying the paging target identity information, receiving the third paging information of at least one communication device according to the paging target identity information for matching, and obtain a third matching result.

An embodiment of the present application provides a paging method, which is applied to a base station, and the method includes: sending a first paging message including a first indication and a second indication, and at least one communication device receiving the first paging message performs a first match according to the target group information corresponding to the first indication and obtains a first matching result, and performs a second match according to the target subgroup corresponding to the second indication and obtains a second matching result; sending a second paging message including paging target identity information, and at least one communication device receiving the second paging message performs a third match according to the paging target identity information and obtains a third matching result.

An embodiment of the present application provides a paging method, which is applied to a communication system including at least a base station and a communication device, wherein the communication device includes a main processing unit and a low-power processing unit, and the method includes: the base station sends a first paging message; the communication device receives the first paging message through the low-power processing unit, and obtains a paging target group according to the first paging message; the communication device matches the paging target group with the group to which the communication device belongs through the low-power processing unit to obtain a first matching result; and performs a first paging according to the first matching result.

An embodiment of the present application provides a communication device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, a paging method applied to the communication device is implemented.

An embodiment of the present application provides a communication base station, including a memory and a processor, wherein the memory stores a computer program, and the processor implements a paging method applied to the base station when executing the computer program.

An embodiment of the present application provides a computer-readable medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the paging method according to the present application is implemented.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a paging group early indicator (PEI) indicating a group;

FIG2 is a schematic diagram of a combination mode for achieving synchronization with low power consumption;

FIG3 is a schematic diagram of a paging mechanism of a related art;

FIG4 is a schematic diagram of core network control grouping and grouping based on terminal ID;

FIG5 is a flow chart of a paging method applied to a terminal according to an embodiment of the present application;

FIG6 is a flowchart of a paging method applied to a terminal provided in an embodiment of the present application;

FIG7 is a flow chart of a paging method applied to a base station provided in an embodiment of the present application;

8 is a flowchart of a paging method applied to a communication system composed of a terminal and a base station according to an embodiment of the present application;

FIG9 is a schematic diagram of two-level grouping provided by an embodiment of the present application;

FIG10 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

FIG11 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

FIG12 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

13 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

FIG14 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

FIG15 is a schematic diagram of a terminal and a base station paging process provided by an example of the present application;

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

In the embodiments of the present application, the words "further", "exemplarily" or "optionally" are used to indicate examples, illustrations or descriptions, and should not be interpreted as being more preferred or more advantageous than other embodiments or designs. The use of the words "further", "exemplarily" or "optionally" is intended to present related concepts in a specific way.

3GPP Rel-17 application scenarios include industrial IoT (such as industrial sensors, Real-time monitoring, etc.) and various forms of IoT terminals (such as wearable devices, including smart watches, smart glasses, smart bracelets, health wearables, etc.). These applications require terminals to have low costs and have stringent requirements on terminal size and power consumption. 3GPP Rel-16 and Rel-17 have been studying 5G terminal energy-saving technologies, but there is still a large gap from the power consumption requirements of IoT terminals.

In the Rel-16 standard, the terminal detects PO once during the wake-up time of each DRX cycle, and does not monitor during the sleep time, thereby reducing the power consumption of the terminal. If the terminal detects the paging PDCCH, it continues to receive the paging message scheduled by the PDCCH, and the paging message indicates the ID of the terminal that is actually paged. In Rel-15, the terminal determines the paging frame (PF) and paging opportunity according to the formula based on the terminal ID. The terminals in the cell are distributed on different paging frames and paging opportunities. However, depending on the paging capability of the communication system, multiple terminals may still use the same paging frame and paging opportunity in the end. This results in that as long as one terminal is paged, other terminals using the same paging frame and paging opportunity will detect the paging PDCCH, and then receive and decode the paging message, resulting in unnecessary paging detection energy consumption for these terminals, and usually the probability of a terminal being paged is relatively small, resulting in the problem of paging detection error probability.

In the Rel-17 standard, terminals belonging to the same PO are grouped, and a paging group early indicator (PEI) is introduced to indicate which group of terminals should detect the current paging, thereby avoiding unnecessary energy consumption. Since the PEI is 8 bits, the terminals are divided into up to 8 groups. As shown in Figure 1, a PEI indication can contain multiple segments, each of which corresponds to a PO. It should be noted that the terminal includes but is not limited to the UE, and the figure only uses the UE as an example.

For traditional terminals in idle state, paging monitoring and time-frequency domain tracking and synchronization are the sources of most of the power consumption of idle terminals. In wireless systems, due to the influence of multiple factors such as propagation delay or Doppler frequency shift, the received signal has time-frequency deviations. These deviations may cause inter-symbol interference and inter-carrier interference, thereby affecting the demodulation performance. Therefore, synchronous reception is required to correct the deviations. Low-power signals should include two functions: synchronization and wake-up. As shown in Figure 2, in the related art, the combination mode of low-power signals to achieve synchronization can be synchronized through a proprietary periodically transmitted low-power synchronization sequence (Low power synchronous sequence, LP-SS); it can be synchronized by a low-power wake-up signal (Low power wakeup signal, LP-WUS) also provides synchronization function, such as adding a preamble code before the LP-WUS signal to support synchronization. It should be noted that the preamble code is also considered as part of the LP-WUS message, but in both cases, the preamble code sequence realizes the synchronization function; the synchronization function can also be realized through the combination of LP-SS and preamble code. The low power signal in Figure 2 refers to all signals received from the base station (the next Generation NodeB, gNB), including LP-SS, LP-WUS and LP-WUS with preamble code added, which is related to the signal combination mode adopted for synchronization.

As shown in FIG3 , in the related paging technology, LP-WUS can be used to trigger PEI monitoring, that is, to determine whether to detect PEI, and if detected, wake up the main processing unit, and monitor the PDCCH message according to the PEI indication. This method does not save additional power consumption; LP-WUS can also replace PEI to carry UE group indication, wake up the main processing unit according to the group indication and then monitor PO. This method still has the problem of a high probability of paging detection error; in addition, each LP-WUS indicates one or more UEs, and the overhead will increase linearly with the number of UEs, and the network message overhead is too large.

Based on this, the present application proposes a paging method, a communication device, a communication base station and a computer-readable medium. The terminals belonging to the same paging opportunity are grouped into two levels, and the groups are indicated by low-power signals, and the terminals determine whether to monitor the paging according to the two-level indications, thereby reducing the probability of paging detection errors and reducing the power consumption of the terminals.

The paging method provided in the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), LTE system, Advanced long term evolution (LIE-A) system, 5G, Beyond Fifth Generation (B5G), 6th Generation (6G) system, etc.

In the embodiment of the present application, the communication device can be various types of terminals, such as a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an Internet of Things (IoT) terminal device, an industrial control Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, user equipment (UE), vehicle communication devices, vehicle communication chips, roadside units or communication devices in roadside units, etc. It can also be a wearable device/wearable smart device, such as a portable device integrated into the user's clothes or accessories, such as a bracelet, glasses, gloves, watches, and clothing.

In the embodiments of the present application, the communication base station may be a base station (base transceiver station, BTS) in a global mobile communication system or a code division multiple access system, or a base station (NodeB, NB) in a wideband code division multiple access system, or an evolved base station (evolved NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc., for example, a transmission and reception point (transmission and reception point, TRP) or a transmission point (transmission point, TP) in an NR system, a base station (gNB) in an NR system, one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, etc., and the embodiments of the present application do not specifically limit this.

In order to fully explain the technical solution, the paging mechanism of the embodiment of the present application is further explained by taking the base station and the terminal in the communication system as an example.

The paging process of the present application involves a terminal, a base station and a core network. The terminal is a communication device that supports low-power processing capability or multi-level grouping capability, and includes a first processing unit and a second processing unit. The first processing unit is a low-power processing unit, including a low-power wakeup receiver (Lower power wakeup receiver, LP-WUR), which is mainly used to monitor and receive low-power signals, and wake up the main processing unit on demand. Low-power signals include but are not limited to LP-SS, LP-preamble, LP-WUS or one or more combinations thereof. The low-power processing unit does not have high requirements for delay, reception accuracy, etc. The second processing unit includes a main processing unit, including a main receiver, which is used to receive NR signals and realize most of the business processing. The main receiver has high complexity and has high requirements for delay, reception accuracy, etc.

It should be noted that supporting low-power processing capability or supporting multi-level grouping capability means that the terminal has a first processing unit, that is, a low-power processing unit, and also supports the capabilities corresponding to the low-power processing unit; in the context of this application, a terminal that does not support low-power processing capability or does not support multi-level grouping capability has only one main processing unit.

In one embodiment, the terminals may be grouped in two levels before the paging process begins. The terminals belonging to the same PO are grouped in two levels, wherein the first level of grouping determines the group to which the terminal belongs, indexed by Group ID; the second level of grouping determines the subgroup to which the terminal belongs, indexed by SubGroup ID.

In one embodiment, the grouping may be controlled by the core network. The core network directly determines the grouping and then sends the grouping information, i.e., the Group ID of the group to which each terminal belongs and the SubGroup ID of the subgroup to which it belongs, to the base station and the terminal.

It should be noted that the terminal needs to send support capability information, as shown in Figure 4 (1). If the terminal supports low-power processing capability or supports two-level grouping capability controlled by the core network, it will report to the core network through NAS messages; the radio access network (RAN) side (i.e., the base station side) broadcasts the support for the grouping mode through system messages. If both the terminal and the base station support the core network grouping mode, the core network, such as the AMF network element, determines the group to which each terminal belongs, and sends the Group ID of the group to which the terminal belongs and the SubGroup ID of the subgroup to which the terminal belongs to the terminal and the base station, which then save the information.

In another embodiment, grouping can be performed based on the terminal ID. As shown in FIG4(2), if the terminal supports low-power processing capability or supports two-level grouping capability, and the base station supports grouping based on the terminal ID, the terminal and the base station determine the grouping information based on the same rules, that is, the Group ID of the group to which the terminal belongs and the SubGroup ID of the subgroup to which the terminal belongs are determined based on the same rules.

The calculation rule based on the terminal ID, in addition to being related to the terminal ID, can also be related to the maximum group and/or subgroup supported by the cell and other information. The base station needs to inform the terminal of the maximum group parameter maxGroupNum and/or the maximum subgroup parameter maxSubGroupNum supported by the cell for calculation, that is, the maximum number of groups maxGroupNum or the maximum number of subgroups maxSubGroupNum supported in the area covered by the base station or part of the base station.

Exemplarily, the calculation rule of the terminal ID may be: subGroup_ID=UE_ID mod maxSubGroupNum, Group_ID=floor(UE_ID/maxSubGroupNum), where UE_ID=5G-S-TMSI mod X (5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192).

Exemplarily, the calculation rule of the terminal ID can also be: subGroup_ID=UE_IDmod maxGroupNum, Group_ID=floor(UE_ID/maxGroupNum), where UE_ID=5G-S-TMSI mod X (5G-S-TMSI is the ID that identifies the terminal, issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192).

In one embodiment, the RAN side base station supports both the grouping controlled by the core network and the grouping method based on the terminal ID. The low-power terminal supports at least the grouping method based on the terminal ID, and reports to the core network whether it supports the grouping method controlled by the core network according to the capability. In this case, the terminal uses the grouping method based on the terminal ID by default. When the core network provides the grouping information to the terminal, and the RAN side base station broadcasts to inform that it supports the grouping method controlled by the core network, the terminal uses the grouping provided by the core network.

The present application performs grouping according to two levels, which reduces the network signaling and message carrying overhead of indicating the grouping compared to the grouping method of using one level to achieve the same number of sub-groups; at the same time, the two-level grouping is used to divide the terminals of the same PO into more sub-groups, so that the number of terminals contained in each group is smaller, the probability of paging detection errors is reduced, and the main processing unit of the terminal does not need to be opened frequently, saving unnecessary power consumption overhead.

FIG5 shows a paging process applied to multiple terminals, including but not limited to the following steps S1001 to S1013. It should be noted that the terminals in the figure are only examples.

In step S1001, the first processing unit of each terminal receives first paging information.

It should be noted that each terminal refers to each of the multiple terminals to which the paging method is applied, and each terminal is a communication device supporting low-power processing capability or multi-level grouping capability, and includes a first processing unit and a second processing unit.

In one embodiment, when there is no service demand, the second processing unit (i.e., the main processing unit) of each terminal enters a dormant state, and the first processing unit (i.e., the low-power processing unit) enters an active state. When the network needs to communicate with the terminal and then pages one or more terminals, the low-power processing unit of each terminal detects the low-power signal and receives the first paging information. The first paging information is a message sequence constructed by the base station, which is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or based on a specific The rules calculate and determine the Group ID and SubGroup ID of the terminal to be paged.

In one embodiment, the first paging information may be an LP-SS, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-SS sequences in total, and each LP-SS sequence corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-SS sequence that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-SS sequences, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-preamble, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-preambles in total, and each LP-preamble corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-preamble that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-preambles, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-WUS, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In another embodiment, the first paging information may be an LP-SS or LP-preamble, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In step S1002, each terminal obtains a paging target group identifier according to the first paging information.

In one embodiment, the low power consumption processing unit of each terminal determines the Group ID of the group to which the terminal to be paged belongs, that is, the paging target group identifier, according to the group grouping information indicated by the first paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In another embodiment, the first paging information received by the terminal is LP-WUS, which includes First indication and second indication, each terminal determines the Group ID of the group to which the terminal to be paged belongs according to the first indication, that is, the paging target group identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In another embodiment, the first paging information received by the terminal is an LP-SS or LP-preamble code, which includes a first indication and a second indication, and each terminal determines the Group ID of the group to which the terminal to be paged belongs according to the first indication, that is, the paging target group identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In step S1003, a first paging is performed by a first processing unit of each terminal according to the paging target group identifier.

In one embodiment, if the Group ID of the group to which the terminal belongs does not match the paging target group identifier, the first paging executed is step S1004, that is, the reception of the second paging information is stopped during this paging cycle.

It should be noted that the terminal is one of the multiple terminals applied by the paging method. Each terminal performs the first paging through the first processing unit. The paging cycle is one PO. If the Group ID of the group to which the terminal belongs does not match the paging target group identifier, it means that the terminal has not been paged within this PO, and its main processing unit is kept in sleep mode, and stops receiving the second paging information.

In another embodiment, if the Group ID of the group to which the terminal belongs matches one of the paging target group identifiers, the first paging executed (step S1003) includes but is not limited to the following steps S1005 to S1006.

In step S1005, in this paging cycle, second paging information is received by the first processing unit.

It can be understood that the first processing unit refers to a low-power processing unit of a terminal to which the Group ID of the group to which it belongs matches one of the paging target group identifiers, and not all terminals to which the paging method is applied receive the second paging information through the first processing unit. The second paging information is a message sequence constructed by the base station, which is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In one embodiment, the second paging information may be a LP-preamble. When the terminal subgroup grouping is indicated by the LP-preamble, the bit representing the corresponding terminal subgroup to be paged can be set to 1 by a bitmap method, and the bit representing the subgroup not to be paged can be set to 0. It can be understood that not only the bitmap method can be used to indicate the subgroup grouping, but also other methods can be used to indicate the subgroup grouping, and the present application does not limit the indication method.

In another embodiment, the second paging information may be LP-WUS. Further, in the case of indicating the grouping of terminal subgroups by LP-WUS, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that the subgroup grouping may be indicated not only by a bitmap method, but also by other methods, and the present application does not limit the indication method.

In one embodiment, the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs. Exemplarily, the second paging information may be LP-WUS.

It should be noted that the first paging information is used to indicate the Group ID of the group to which the terminal to be paged belongs. Exemplarily, the first paging information can be an LP-SS or LP-preamble code, and the second paging information includes n bitmaps, respectively indicating the SubGroup ID of the subgroup to which the terminal to be paged in n adjacent POs belongs, wherein the subgroups to which the terminal to be paged in the n POs belong are different, but the groups to which the terminals to be paged in the n POs belong are the same.

It can be understood that if the first paging information is LP-WUS and includes a first indication and a second indication at the same time, wherein the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, then the low power consumption processing unit of the terminal does not need to receive the second paging information.

It can be understood that if the first paging information is an LP-SS or LP-preamble code, and includes a first indication and a second indication at the same time, wherein the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, then the low power consumption processing unit of the terminal does not need to receive the second paging information.

In step S1006, a paging target subgroup identifier is obtained according to the second paging information.

In one embodiment, the terminal receiving the second paging information determines the SubGroup ID of the subgroup to which the terminal to be paged belongs according to the subgroup grouping information indicated by the second paging information, that is, the paging target subgroup identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In another embodiment, the first paging information is received, and the terminal whose Group ID of the group to which the terminal belongs matches the paging target group identifier is determined according to the first indication of the first paging information, and the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, is determined according to the second indication of the first paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In step S1007, second paging is performed by the first processing unit according to the paging target subgroup identifier.

In one embodiment, if the SubGroup ID of the subgroup to which the terminal belongs does not match the paging target subgroup ID, the second paging executed is step S1008, that is, the reception of the third paging information is stopped during this paging cycle.

It should be noted that the paging cycle is one PO. If the SubGroup ID of the group to which the terminal belongs does not match the paging target subgroup ID, it means that the terminal has not been paged within this PO, and its main processing unit remains in sleep mode and stops receiving the third paging information.

In another embodiment, if the SubGroup ID of the subgroup to which the terminal belongs matches one of the paging target subgroup identifiers, the second paging performed (step S1007) includes but is not limited to the following steps S1009 to S1010.

In step S1009, within this paging cycle, the second processing unit is awakened to receive the third paging information.

It can be understood that the second processing unit is the main processing unit of the terminal to which the SubGroup ID of the subgroup to which it belongs matches one of the paging target subgroup identifiers, which is awakened by the first processing unit (i.e., the low-power processing unit) of the terminal and receives the third paging information, and not all terminals to which the paging method is applied receive the third paging information. The third paging information is information for addressing the identity information of the terminal to be paged, which is scheduled by PDCCH.

In step S1010, the identity information of the terminal to be paged is determined by the second processing unit according to the third paging information.

In one embodiment, the terminal receiving the third paging information determines the identity information of the terminal to be paged according to the third paging information through the awakened main processing unit, wherein the identity information of the terminal to be paged is used to indicate the terminal to be paged. Exemplarily, the identity information of the terminal to be paged is used to address the terminal ID to be paged.

In step S1011, according to the identity information of the terminal to be paged, the second unit performs the first Three paging.

In one embodiment, the terminal ID does not match the terminal to be paged indicated by the terminal identity information to be paged, that is, the terminal is not paged, and the third paging performed is step S1012, that is, stopping random access and subsequent message sending and receiving in this paging cycle.

In another embodiment, the terminal ID matches the terminal to be paged indicated by the terminal identity information to be paged, that is, the terminal is paged, and the third paging performed is step S1013, that is, initiating random access in this paging cycle.

It can be understood that the paging cycle is one PO. When the terminal is determined to be a terminal to be paged, the terminal randomly accesses the preamble code and starts trying to access the network, and establishes a basic signaling connection with the network to realize data transmission and reception.

FIG. 6 shows relevant steps performed by a terminal during a paging process, including but not limited to the following steps S100 to S1200 . It should be noted that the terminal in the figure is only an example.

In step S100, a first processing unit of a terminal receives first paging information.

In one embodiment, when there is no business demand, the second processing unit (i.e., the main processing unit) of the terminal enters a dormant state, and the first processing unit (i.e., the low-power processing unit) enters an activated state. When the network needs to communicate with the terminal to page one or more terminals, the low-power processing unit of at least one terminal detects a low-power signal and receives a first paging message. The first paging message is a message sequence constructed by the base station, which is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In one embodiment, the first paging information may be an LP-SS, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-SS sequences in total, and each LP-SS sequence corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-SS sequence that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-SS sequences, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-preamble code, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-preamble codes in total, and each LP-preamble code corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-preamble code that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-preamble codes, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-WUS, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In another embodiment, the first paging information may be an LP-SS or LP-preamble, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In step S200, a first processing unit of the terminal obtains a paging target group identifier according to first paging information.

In one embodiment, the low power consumption processing unit of the terminal determines the Group ID of the group to which the terminal to be paged belongs, that is, the paging target group identifier, according to the group grouping information indicated by the first paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In another embodiment, the first paging information received by the terminal is LP-WUS, which includes a first indication and a second indication, and the terminal determines the Group ID of the group to which the terminal to be paged belongs according to the first indication, that is, the paging target group identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In another embodiment, the first paging information received by the terminal is an LP-SS or LP-preamble code, which includes a first indication and a second indication, and the terminal determines the Group ID of the group to which the terminal to be paged belongs according to the first indication, that is, the paging target group identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more.

In step S300, the first processing unit of the terminal matches the paging target group identifier with the group to which the terminal belongs to obtain a first matching result.

In one embodiment, the terminal confirms whether the Group ID of the group to which it belongs matches the paging target group identifier, and obtains a first matching result. The first matching result may be a successful match, that is, the Group ID of the group to which the terminal belongs is the paging target group identifier or one of the paging target group identifiers; the first matching result may be a failed match, that is, the terminal is not paged.

According to different situations of the first matching result, the first paging of the terminal performs different processing steps. In one embodiment, if the first matching result is a matching failure, the terminal performs step S400, that is, stops receiving the second paging information in this paging cycle.

It can be understood that when the first matching result is a matching failure, it means that the Group ID of the group to which the terminal belongs is not the paging target group identifier of this paging opportunity. Therefore, the second paging information is stopped from being received during this paging cycle, and the detection of the next paging cycle is waited for.

In another embodiment, the first matching result is a successful match, and the terminal executes including but not limited to the following steps S500 to S700.

In step S500, the first processing unit of the terminal receives second paging information.

In one embodiment, the low power consumption processing unit of the terminal detects and receives the second paging information. The terminal is a terminal for which the first matching result is a successful match, and the second paging information is a message sequence constructed by the base station, which is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In one embodiment, the second paging information may be an LP-preamble. Further, in the case where the terminal subgroup grouping is indicated by the LP-preamble, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that not only the bitmap method may be used to indicate the subgroup grouping, but other methods may also be used to indicate the subgroup grouping, and the present application does not limit the indication method.

In another embodiment, the second paging information may be LP-WUS. Further, in the case of indicating the grouping of terminal subgroups by LP-WUS, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that the subgroup grouping may be indicated not only by a bitmap method, but also by other methods, and the present application does not limit the indication method.

In one embodiment, the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs. LP-WUS.

It should be noted that the first paging information is used to indicate the Group ID of the group to which the terminal to be paged belongs. Exemplarily, the first paging information can be an LP-SS or LP-preamble code, and the second paging information includes n bitmaps, respectively indicating the SubGroup ID of the subgroup to which the terminal to be paged in n adjacent POs belongs, wherein the subgroups to which the terminal to be paged in the n POs belong are different, but the groups to which the terminals to be paged in the n POs belong are the same.

It can be understood that if the first paging information is LP-WUS and includes a first indication and a second indication at the same time, wherein the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, then the low power consumption processing unit of the terminal does not need to receive the second paging information.

It can be understood that if the first paging information is an LP-SS or LP-preamble code, and includes a first indication and a second indication at the same time, wherein the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, then the low power consumption processing unit of the terminal does not need to receive the second paging information.

In step S600, the first processing unit of the terminal obtains a paging target subgroup identifier according to the second paging information.

In one embodiment, the low power consumption processing unit of the terminal determines the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, according to the subgroup grouping information indicated by the second paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more. Exemplarily, the second paging information can be an LP-preamble or an LP-WUS.

In another embodiment, the first paging information received by the terminal includes a first indication and a second indication, and the low power consumption processing unit of the terminal determines the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, according to the second indication of the first paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more. Exemplarily, the first paging information can be LP-WUS.

In another embodiment, the first paging information includes n bitmaps, which correspond to the groups in sequence, and each bitmap is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, where n is the maximum number of groups supported by the cell. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers The identification may also be one or more. Exemplarily, the first paging information may be LP-WUS.

In one embodiment, the first paging information is used to indicate the group to which the terminal to be paged belongs, and the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs.

It is understandable that different paging subgroups of a paging group can be paged in different POs, the paging group is indicated by the first paging information, and the paging subgroups of the paging group in the adjacent n POs are respectively indicated by the n bitmaps in the second paging information. Exemplarily, the first paging information is LP-SS or LP-preamble, and the second paging information is LP-WUS.

In step S700, the first processing unit of the terminal matches the paging target subgroup identifier with the subgroup to which the terminal belongs to obtain a second matching result.

In one embodiment, the terminal confirms whether the SubGroup ID of the subgroup to which it belongs matches the paging target subgroup identifier, and obtains a second matching result. The second matching result may be a successful match, that is, the SubGroup ID of the subgroup to which the terminal belongs is the paging target subgroup identifier or one of the paging target subgroup identifiers; the second matching result may be a failed match, that is, the terminal is not paged.

According to different situations of the second matching result, the second paging of the terminal executes different processing steps. In one embodiment, the second matching result is a matching failure, and the terminal executes step S800, that is, stops detecting the third paging information in this paging cycle. It can be understood that when the second matching result is a matching failure, it means that the SubGroup ID of the subgroup to which the terminal belongs is not the paging target subgroup identifier of this paging opportunity, so the terminal stops detecting the third paging information in this paging cycle and waits for the detection of the next paging cycle.

In another embodiment, the second matching result is a successful match, and the terminal executes including but not limited to the following steps S900 to S1100.

In step S900, the terminal wakes up the second processing unit and receives the third paging information.

In one embodiment, the terminal is a terminal in which both the first matching result and the second matching result are successfully matched, and the second processing unit is the main processing unit of the terminal. When the second matching result is a successful match, it indicates that the SubGroup ID of the subgroup to which the terminal belongs is the paging target subgroup identifier or one of the paging target subgroup identifiers, and the main processing unit is awakened to an on state, and the paging PDCCH is listened to in the paging opportunity PO to check the third paging information.

In step S1000, the second processing unit of the terminal obtains a paging message according to the third paging message. Target identity information.

In one embodiment, the terminal monitors the PDCCH, and the received third paging information is information for addressing the identity information of the paging target scheduled by the PDCCH. The paging target is the terminal to be paged, and the corresponding identity information can be the ID of the terminal to be paged. The main processing unit of the terminal obtains the ID of the terminal to be paged according to the paging message corresponding to the PDCCH.

In step S1100, the second processing unit of the terminal matches the paging target identity information with the terminal identity information to obtain a third matching result.

In one embodiment, the main processing unit of the terminal matches the obtained terminal ID to be paged with its own ID to obtain a third matching result. The third matching result may be a successful match, that is, the terminal is a terminal to be paged; the third matching result may be a failed match, that is, the terminal is not paged.

According to different situations of the third matching result, the third paging of the terminal performs different processing steps. In one embodiment, the third matching result is a matching failure, and the terminal performs step S1200, that is, stops random access and message sending and receiving in this paging cycle. It can be understood that when the third matching result is a matching failure, it means that the terminal is not a terminal to be paged, so random access and message sending and receiving are stopped in this paging cycle.

In another embodiment, the third matching result is a successful match, and the terminal executes step S1300, that is, the terminal initiates random access. It can be understood that when the third matching result is a successful match, the terminal is determined to be a terminal to be paged, and the terminal randomly accesses the preamble code to start trying to access the network and establishes a basic signaling connection with the network to realize data transmission and reception.

FIG. 7 shows relevant steps performed by the base station during the paging process, including but not limited to the following steps S2000 to S4000 . It should be noted that the terminal in the figure is only an example.

In step S2000, the base station sends first paging information to the terminal.

It should be noted that the terminal is a communication device that supports low-power processing capabilities or multi-level grouping capabilities, which includes a first processing unit and a second processing unit, and the number of terminals is at least one. The first processing unit is a low-power processing unit, including LP-WUR, which is mainly used to monitor and receive low-power signals, and wake up the main processing unit on demand. Low-power signals include but are not limited to LP-SS, LP-preamble, LP-WUS or one or more combinations thereof. The low-power processing unit has low requirements for latency, reception accuracy, etc. The second processing unit is the main processing unit, including a main receiver, which is used to receive NR signals and implement most services. The main receiver has high complexity and has high requirements for delay and reception accuracy.

Furthermore, supporting low-power processing capability or supporting multi-level grouping capability means that the terminal has a first processing unit, that is, a low-power processing unit, and also supports the capabilities corresponding to the low-power processing unit; in the context of the present application, a terminal that does not support low-power processing capability or does not support multi-level grouping capability has only one main processing unit.

In one embodiment, when the network needs to communicate with the terminal and then pages one or more terminals, the base station constructs paging information based on the Group ID of the group to which the terminal to be paged belongs and the SubGroup ID of the subgroup to which it belongs, which are sent by the core network.

In another embodiment, when the network needs to communicate with the terminal and then page one or more terminals, the base station calculates the Group ID of the group to which the terminal to be paged belongs and the SubGroup ID of the subgroup to which the terminal to be paged belongs based on the terminal ID to be paged issued by the core network and specific rules, and then constructs the paging information.

The calculation rule based on the terminal ID, in addition to being related to the terminal ID, can also be related to the maximum group and/or subgroup supported by the cell and other information. The base station needs to inform the terminal of the maximum group parameter maxGroupNum and/or the maximum subgroup parameter maxSubGroupNum supported by the cell for calculation, that is, the maximum number of groups maxGroupNum or the maximum number of subgroups maxSubGroupNum supported in the area covered by the base station or part of the base station.

Exemplarily, the calculation rule of the terminal ID can be: subGroup_ID = UE_ID mod maxSubGroupNum, Group_ID = floor(UE_ID/maxSubGroupNum), where UE_ID = 5G-S-TMSI mod X (5G-S-TMSI is the ID that identifies the terminal, issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192).

Exemplarily, the calculation rule of the terminal ID can also be: subGroup_ID = UE_ID mod maxGroupNum, Group_ID = floor(UE_ID/maxGroupNum), where UE_ID = 5G-S-TMSI mod X (5G-S-TMSI is the ID that identifies the terminal, issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192).

In one embodiment, the first paging information sent by the base station carries a paging target group identifier, and the paging target group identifier is used to indicate the paging group to which the terminal to be paged belongs. It can be understood that there can be one or more terminals to be paged, and the paging group to which the terminal to be paged belongs can also be one or more. The identification may also be one or more. All terminals using the paging method may receive the first paging information sent by the base station.

In one embodiment, the first paging information may be an LP-SS, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-SS sequences in total, and each LP-SS sequence corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-SS sequence that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-SS sequences, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-preamble code, and the first paging information indicates the Group ID of the group to which the terminal to be paged belongs. There are more than n LP-preamble codes in total, and each LP-preamble code corresponds to a group to which a terminal belongs or does not correspond to any terminal group. The LP-preamble code that does not correspond to any terminal group indicates that no corresponding terminal is paged. The first paging information is selected from more than n LP-preamble codes, where n is the maximum number of groups supported by the cell.

In another embodiment, the first paging information may be an LP-WUS, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In another embodiment, the first paging information may be an LP-SS or LP-preamble, and the first paging information received by the terminal includes a first indication and a second indication, the first indication being used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication being used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs. The first paging information is a message sequence constructed by the base station, and is used to determine the Group ID and SubGroup ID of the terminal to be paged according to the grouping information sent by the core network, or to calculate and determine the Group ID and SubGroup ID of the terminal to be paged based on specific rules.

In step S3000, the base station sends second paging information to the terminal.

In one embodiment, the second paging information sent by the base station carries a paging target subgroup identifier, and the paging target subgroup identifier is used to indicate the paging subgroup to which the paging terminal belongs. It can be understood that there may be one or more paging terminals, and the paging subgroup to which the paging terminal belongs may also be one or more. The number of the paging target subgroup identifiers may also be one or more. Exemplarily, the second paging information may be a LP-preamble or a LP-WUS.

It should be noted that not all terminals receive the second paging information sent by the base station. The terminal receives the second paging information only when the to-be-paging group identifier indicated by the received first paging information matches the group to which the terminal belongs.

In one embodiment, the second paging information may be an LP-preamble. Further, in the case where the terminal subgroup grouping is indicated by the LP-preamble, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that not only the bitmap method may be used to indicate the subgroup grouping, but other methods may also be used to indicate the subgroup grouping, and the present application does not limit the indication method.

In another embodiment, the second paging information may be LP-WUS. Further, in the case of indicating the grouping of terminal subgroups by LP-WUS, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that the subgroup grouping may be indicated not only by a bitmap method, but also by other methods, and the present application does not limit the indication method.

In one embodiment, the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs. Exemplarily, the second paging information may be LP-WUS.

It should be noted that the first paging information is used to indicate the Group ID of the group to which the terminal to be paged belongs. Exemplarily, the first paging information can be an LP-SS or LP-preamble code, and the second paging information includes n bitmaps, respectively indicating the SubGroup ID of the subgroup to which the terminal to be paged in n adjacent POs belongs, wherein the subgroups to which the terminal to be paged in the n POs belong are different, but the groups to which the terminals to be paged in the n POs belong are the same.

In another embodiment, if the first paging message includes a first indication and a second indication, and the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, the base station does not need to construct and send the second paging message.

In another embodiment, if the first paging information includes n bitmaps, which correspond to each subgroup in sequence, and each bitmap is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, where n is the maximum number of groups supported by the cell, then the base station does not need to construct and send the second paging information. interest.

In step S4000, the base station sends third paging information to the terminal.

In one embodiment, the third paging information sent by the base station carries paging target identity information, and the paging target identity information is used to indicate the terminal to be paged. It can be understood that there can be one or more terminals to be paged, and the identity information of the terminal to be paged can also be one or more. Exemplarily, the third paging information is information for addressing the paging target identity information scheduled by PDCCH, and the ID of the terminal to be paged can be determined according to the third paging information.

It should be noted that not all terminals receive the third paging information sent by the base station. The terminal will receive the third paging information only when it is determined that the group to which the terminal belongs matches the paging target group identifier and the subgroup to which the terminal belongs matches the paging target subgroup identifier.

It should be noted that steps S5000 to S7000 are further explanations of the same steps as steps S2000 to S4000.

In step S5000, the base station sends a first paging message to the terminal, and at least one terminal receiving the first paging message performs matching according to the target group information to obtain a first matching result, wherein the first paging message carries the target group information.

In one embodiment, the first paging information indicates the group information of the terminal to be paged, that is, the first paging information includes the Group ID of the group to which the terminal to be paged belongs, and the Group ID of the group to which the terminal to be paged belongs is the paging target group identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more. Exemplarily, the first paging information can be an LP-SS or LP-preamble code.

The terminal receiving the first paging information is at least one terminal. The terminal receives the first paging information and determines whether the Group ID of the group to which the terminal to be paged belongs indicated by the first paging information matches the group to which it belongs, and obtains a first matching result. The terminal receiving the first paging information determines whether to perform a second match based on the first matching result. If the first matching result is a successful match, it means that the terminal is a terminal to be paged or belongs to the same group as the terminal to be paged, so it continues to receive the second paging information; if the first matching result is a failed match, it means that the terminal has not been paged, and then it stops receiving the second paging information during this paging cycle.

It is understandable that when the first matching result is a match failure, it means that the Group ID of the group to which the terminal belongs is not the paging target group identifier of this paging opportunity, so the terminal stops receiving the second paging information in this paging cycle and waits for detection in the next paging cycle.

In another embodiment, the first paging information includes a first indication and a second indication, the first indication can be used to determine the Group ID of the group to which the terminal to be paged belongs, and the second indication can be used to determine the SubGroup ID of the subgroup to which the terminal to be paged belongs. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more. Exemplarily, the first paging information is LP-WUS.

The terminal receiving the first paging information is at least one terminal. The terminal receives the first paging information, and determines whether the Group ID of the group to which the terminal to be paged belongs matches the group to which the terminal itself belongs according to the first indication of the first paging information, and obtains a first matching result. The terminal receiving the first paging information determines whether to perform a second match according to the first matching result. If the first matching result is a matching failure, it means that the terminal has not been paged, and the second paging information is stopped from being received during this paging cycle; if the first matching result is a matching success, it means that the terminal is a terminal to be paged or belongs to the same group as the terminal to be paged, and thus a second match is performed according to the second indication of the first paging information to determine whether the SubGroup ID of the subgroup to which the terminal to be paged belongs matches the subgroup to which the terminal itself belongs, and obtain a second matching result; if the second matching result is a matching failure, the detection of the third paging information is stopped during this paging cycle; if the second matching result is a matching success, the second processing unit of the terminal, that is, the main processing unit, is awakened to monitor the PDCCH.

In step S6000, the base station sends a second paging message to the terminal, and at least one terminal receiving the second paging message performs matching according to the target subgroup information to obtain a second matching result, wherein the second paging message carries the target subgroup information.

In one embodiment, the second paging information indicates the subgroup grouping information of the terminal to be paged, that is, the second paging information includes the SubGroup ID of the subgroup to which the terminal to be paged belongs, and the SubGroup ID of the subgroup to which the terminal to be paged belongs is the paging target subgroup identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In one embodiment, the second paging information may be an LP-preamble. Further, in the case where the terminal subgroup grouping is indicated by the LP-preamble, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that not only the bitmap method may be used to indicate the subgroup grouping, but other methods may also be used to indicate the subgroup grouping, and the present application does not limit the indication method.

In another embodiment, the second paging information may be LP-WUS. In the case of indicating the terminal subgroup grouping through LP-WUS, the bit representing the corresponding terminal subgroup to be paged can be set to 1 by bitmap, and the bit of the subgroup not to be paged can be set to 0. It can be understood that not only the bitmap method can be used to indicate the subgroup grouping, but also other methods can be used to indicate the subgroup grouping, and the present application does not limit the indication method.

In one embodiment, the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs. Exemplarily, the second paging information may be LP-WUS.

It should be noted that the first paging information is used to indicate the Group ID of the group to which the terminal to be paged belongs. Exemplarily, the first paging information can be an LP-SS or LP-preamble code, and the second paging information includes n bitmaps, respectively indicating the SubGroup ID of the subgroup to which the terminal to be paged in n adjacent POs belongs, wherein the subgroups to which the terminal to be paged in the n POs belong are different, but the groups to which the terminals to be paged in the n POs belong are the same.

The terminal receiving the second paging information is a terminal for which the first matching result after matching the paging target group identifier indicated by the first paging information is a successful match, and there is at least one terminal. The terminal monitors and receives the second paging information, and determines whether it matches the subgroup to which it belongs based on the SubGroup ID of the subgroup to which the terminal to be paged belongs indicated by the second paging information, and obtains the second matching information. The terminal receiving the second paging information determines whether to wake up the main processing unit based on the second matching result. If the second matching information is a matching failure, it means that the terminal has not been paged, and the detection of the third paging information is stopped in this paging cycle; if the second matching result is a matching success, it means that the terminal is a terminal to be paged or belongs to the same subgroup as the terminal to be paged, and the second processing unit of the terminal is woken up, that is, the main processing unit is woken up to monitor the PDCCH.

In another embodiment, if the first paging message includes a first indication and a second indication, and the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, the base station does not need to construct and send the second paging message.

In another embodiment, if the first paging message contains n bitmaps, corresponding to each subgroup in sequence, and each bitmap is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, where n is the maximum number of groups supported by the cell, then the base station does not need to construct and send the second paging message.

In step S7000, the base station sends a third paging message to the terminal, and receives the third paging message. At least one terminal receiving the paging information performs a third match according to the paging target identity information to obtain a third matching result, wherein the third paging information carries the paging target identity information.

In one embodiment, the third paging information is information for addressing identity information of a paging target scheduled by the PDCCH, and the ID of the paged terminal can be determined according to the third paging information.

The terminal receiving the third paging information is a terminal that performs a first match based on the first paging information and a second match based on the second paging information, and both the first matching result and the second matching result are successful matches; the terminal receiving the third paging information may also be a terminal that performs a first match based on the first indication of the first paging information and a second match based on the second indication of the first paging information, and both the first matching result and the second matching result are successful matches.

In one embodiment, the main processing unit of the terminal receiving the third paging information performs a third match between the terminal ID to be paged obtained according to the third paging information and its own ID to obtain a third matching result. If the third matching result is a matching failure, the terminal is not paged, and the terminal stops random access and subsequent message transmission and reception during this paging cycle; if the matching is successful, the terminal is a terminal to be paged, and the terminal initiates random access. It can be understood that when the third matching result is a matching success (that is, it is determined that the terminal is a terminal to be paged), the terminal random access preamble code starts to try to access the network and establishes a basic signaling connection with the network to realize data transmission and reception.

FIG8 is a flow chart of a paging method for a communication system composed of a terminal and a base station provided in an embodiment of the present application. It should be noted that the terminal in the figure is only an example. In addition, in the example shown in FIG8, one terminal is taken as an example. However, in actual application, there may be multiple terminals, and each terminal includes a main processing unit and a low power consumption processing unit. The paging process at least includes the following steps S2001 to S2010.

In step S2001, the base station sends first paging information to the terminal.

It should be noted that the terminal is a communication device that supports low-power processing capabilities or multi-level grouping capabilities, which includes a first processing unit and a second processing unit. The first processing unit is a low-power processing unit, including LP-WUR, which is mainly used to monitor and receive low-power signals, and wake up the main processing unit on demand. Low-power signals include but are not limited to LP-SS, LP-preamble, LP-WUS or one or more combinations thereof. The low-power processing unit does not have high requirements for latency, reception accuracy, etc. The second processing unit is the main processing unit, including a main receiver, Used to receive NR signals and implement most business processing. The main receiver is highly complex and has high requirements for latency, reception accuracy, etc.

It should be noted that supporting low-power processing capability or supporting multi-level grouping capability means that the terminal has a first processing unit, that is, a low-power processing unit, and also supports the capabilities corresponding to the low-power processing unit; in the context of this application, a terminal that does not support low-power processing capability or does not support multi-level grouping capability has only one main processing unit.

In one embodiment, when the network needs to communicate with the terminal and then pages one or more terminals, the base station constructs paging information based on the Group ID of the group to which the terminal to be paged belongs and the SubGroup ID of the subgroup to which it belongs, which are sent by the core network.

In another embodiment, when the network needs to communicate with the terminal and then page one or more terminals, the base station calculates the Group ID of the group to which the terminal to be paged belongs and the SubGroup ID of the subgroup to which the terminal to be paged belongs based on the terminal ID to be paged issued by the core network and specific rules, and then constructs the paging information.

The calculation rule based on the terminal ID, in addition to being related to the terminal ID, can also be related to the maximum group and/or subgroup supported by the cell and other information. The base station needs to inform the terminal of the maximum group parameter maxGroupNum and/or the maximum subgroup parameter maxSubGroupNum supported by the cell for calculation, that is, the maximum number of groups maxGroupNum or the maximum number of subgroups maxSubGroupNum supported in the area covered by the base station or part of the base station.

Exemplarily, the calculation rule of the terminal ID can be: subGroup_ID = UE_ID mod maxSubGroupNum, Group_ID = floor(UE_ID/maxSubGroupNum), where UE_ID = 5G-S-TMSI mod X (5G-S-TMSI is the ID that identifies the terminal, issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192).

Exemplarily, the calculation rule of the terminal ID can also be: subGroup_ID = UE_ID mod maxGroupNum, Group_ID = floor(UE_ID/maxGroupNum), where UE_ID = 5G-S-TMSI mod X (5G-S-TMSI is the ID that identifies the terminal, issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192).

In one embodiment, the first paging information indicates the group information of the terminal to be paged, that is, the first paging information includes the Group ID of the group to which the terminal to be paged belongs, and the Group ID of the group to which the terminal to be paged belongs is the paging target group identifier. The number of the terminals may be one or more, and the corresponding paging target group identifiers may also be one or more. Exemplarily, the first paging information may be an LP-SS or LP-preamble.

In another embodiment, the first paging information includes a first indication and a second indication, the first indication can be used to determine the Group ID of the group to which the terminal to be paged belongs, and the second indication can be used to determine the SubGroup ID of the subgroup to which the terminal to be paged belongs. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target group identifiers can also be one or more. Exemplarily, the first paging information is LP-WUS.

Step S2002: The low power consumption processing unit of the terminal receives the first paging information sent by the base station, and obtains the paging target group identifier according to the first paging information.

In one embodiment, there are one or more terminals receiving the first paging information. The one or more terminals receive the first paging information and determine the Group ID of the group to which the terminal to be paged belongs, that is, the paging target group identifier, according to the first paging information. Exemplarily, the first paging information may be an LP-SS or LP-preamble code.

In another embodiment, there are one or more terminals receiving the first paging information, and the first paging information includes a first indication and a second indication. The one or more terminals receive the first paging information and determine the Group ID of the group to which the terminal to be paged belongs according to the first indication of the first paging information, that is, the paging target group identifier. Exemplarily, the first paging information may be LP-WUS.

In step S2003, the low power consumption processing unit of the terminal matches the paging target group identifier with the group to which the terminal belongs, and obtains a first matching result.

In one embodiment, the terminal may be one or more terminals, and the terminal confirms whether the Group ID of the group to which it belongs matches the paging target group identifier, and obtains a first matching result. The first matching result may be a successful match, that is, the Group ID of the group to which the terminal belongs is the paging target group identifier or one of the paging target group identifiers; the first matching result may be a failed match, that is, the terminal is not paged.

According to different situations of the first matching result, the first paging of the terminal performs different processing steps. In one embodiment, the first matching result is a matching failure, and the terminal stops receiving the second paging information in this paging cycle.

It can be understood that when the first matching result is a match failure, it means that the Group ID of the group to which the terminal belongs is not the paging target group ID of this paging opportunity. Stop receiving the second paging information in the paging cycle and wait for detection in the next paging cycle.

In another embodiment, the first matching result is a successful match, and steps including but not limited to the following steps S2004 to S2007 are performed.

In step S2004, the base station sends second paging information to the terminal.

In one embodiment, the second paging information indicates the subgroup grouping information of the terminal to be paged, that is, the second paging information includes the SubGroup ID of the subgroup to which the terminal to be paged belongs, and the SubGroup ID of the subgroup to which the terminal to be paged belongs is the paging target subgroup identifier. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In one embodiment, the second paging information may be an LP-preamble. Further, in the case of indicating the grouping of terminal subgroups by the LP-preamble, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that the subgroup grouping may be indicated not only by a bitmap method, but also by other methods, and the present application does not limit the indication method.

In another embodiment, the second paging information may be LP-WUS. Further, in the case of indicating the grouping of terminal subgroups by LP-WUS, a bitmap method may be used to set the bit representing the corresponding terminal subgroup to be paged to 1, and a bit representing the subgroup not to be paged to 0. It is understood that the subgroup grouping may be indicated not only by a bitmap method, but also by other methods, and the present application does not limit the indication method.

In one embodiment, the second paging information includes n bitmaps, each indicating a paging subgroup of a paging group in n adjacent POs. Exemplarily, the second paging information may be LP-WUS.

It should be noted that the first paging information is used to indicate the Group ID of the group to which the terminal to be paged belongs. Exemplarily, the first paging information can be an LP-SS or LP-preamble code, and the second paging information includes n bitmaps, respectively indicating the SubGroup ID of the subgroup to which the terminal to be paged in n adjacent POs belongs, wherein the subgroups to which the terminal to be paged in the n POs belong are different, but the groups to which the terminals to be paged in the n POs belong are the same.

In another embodiment, if the first paging information includes a first indication and a second indication, and the first indication is used to indicate the Group ID of the group to which the terminal to be paged belongs, and the second indication is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, then the base station does not need to construct and send the first paging information. 2. Paging information.

In another embodiment, if the first paging message contains n bitmaps, corresponding to each subgroup in sequence, and each bitmap is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, where n is the maximum number of groups supported by the cell, then the base station does not need to construct and send the second paging message.

The steps of this application are only examples and do not limit the order of execution. For example, step S2004 may occur before steps S2002 and S2003.

In step S2005, the low power consumption processing unit of the terminal receives the second paging information, and obtains the paging target subgroup identifier according to the second paging information.

The terminal receiving the second paging information is a terminal for which the first matching result after matching according to the paging target group identifier indicated by the first paging information is a successful match, and there is at least one terminal.

In one embodiment, the low power consumption processing unit of the terminal determines the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, according to the subgroup grouping information indicated by the second paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In another embodiment, the first paging information received by the terminal includes a first indication and a second indication, and the low power consumption processing unit of the terminal determines the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, according to the second indication of the first paging information. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In another embodiment, the first paging information includes n bitmaps, which correspond to each subgroup in sequence, and each bitmap is used to indicate the SubGroup ID of the subgroup to which the terminal to be paged belongs, that is, the paging target subgroup identifier, where n is the maximum number of groups supported by the cell. It can be understood that the number of terminals to be paged can be one or more, and the corresponding paging target subgroup identifiers can also be one or more.

In step S2006, the low power consumption processing unit of the terminal matches the paging target subgroup identifier with the subgroup to which the terminal belongs, and obtains a second matching result.

The terminal is a terminal that performs matching according to the paging target group identifier indicated by the first paging information and whose first matching result is a successful match, and there is at least one terminal.

In one embodiment, the terminal confirms whether the SubGroup ID of the subgroup to which it belongs matches the paging target subgroup identifier, and obtains a second matching result. The second matching result may be a successful match, that is, the SubGroup ID of the subgroup to which the terminal belongs is the paging target subgroup identifier or one of the paging target subgroup identifiers; the second matching result may be a failed match, that is, the terminal is not paged.

According to different situations of the second matching result, the second paging of the terminal performs different processing steps. In one embodiment, the second matching result is a matching failure, and the terminal stops detecting the third paging information in this paging cycle. It can be understood that when the second matching result is a matching failure, it means that the SubGroup ID of the subgroup to which the terminal belongs is not the paging target subgroup ID in this paging period, so the terminal stops detecting the third paging information in this paging cycle and waits for the detection of the next paging cycle.

In another embodiment, the second matching result is a successful match, and steps including but not limited to the following steps S2007 to S2010 are executed.

In step S2007, the base station sends third paging information to the terminal.

In one embodiment, the third paging information is information for addressing identity information of a paging target scheduled by the PDCCH, and the ID of the paged terminal can be determined according to the third paging information.

In step S2008, the main processing unit of the terminal receives the third paging information, and obtains the paging target identity information according to the third paging information.

The terminal receiving the third paging information is a terminal that performs a first match based on the first paging information and a second match based on the second paging information, and both the first matching result and the second matching result are successful matches; the terminal receiving the third paging information may also be a terminal that performs a first match based on the first indication of the first paging information and a second match based on the second indication of the first paging information, and both the first matching result and the second matching result are successful matches.

In step S2009, the main processing unit of the terminal matches the paging target identity information with the identity information of the terminal to obtain a third matching result.

In one embodiment, the main processing unit of the terminal receiving the third paging information performs a third match between the ID of the terminal to be paged obtained according to the third paging information and its own ID to obtain a third matching result. The third matching result may be a successful match, that is, the terminal is the terminal to be paged or one of the terminals to be paged; the third matching result may be a failed match, that is, the terminal Not being paged.

According to different situations of the third matching result, the third paging of the terminal performs different processing steps. In one embodiment, the third matching result is a matching failure, the terminal is not paged, and the terminal stops random access and subsequent message transmission and reception in this paging cycle.

In another embodiment, the third matching result is a successful match, the terminal is a terminal to be paged, and step S2010 is executed, that is, the terminal initiates random access.

It can be understood that the terminal is a terminal for which the first, second and third matching results are all successful matches, that is, the terminal is determined to be a terminal to be paged or one of the terminals to be paged, and the terminal randomly accesses the preamble code to start trying to access the network and establishes a basic signaling connection with the network to realize data transmission and reception.

In order to further illustrate the paging method provided in the embodiment of the present application, the following example is used for detailed description. It should be noted that the LP-preamble can be considered as part of the LP-WUS message, or it can be considered as information attached to the LP-WUS outside the LP-WUS. The present application takes the LP-preamble attached to the LP-WUS as an example, that is, the LP-WUS refers to the LP-WUS without the LP-preamble, and does not have the function of signal synchronization.

The communication device of the present application may be a user terminal (User Equipment, UE), and UE is a type of terminal. The embodiment of the present application uses UE as an example for illustration, but those skilled in the art know that other terminal types can also implement the solution provided in the embodiment of the present application.

Example 1

Example 1 provides a method for determining the Group ID through LP-SS and the SubGroup ID through LP-WUS, which includes at least the following steps 1 to 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g., n=2, 4, 6, 8, ...), and each Group has m SubGroups (e.g., m=2, 4, 6, 8, ...), there can be a maximum of n*m UE groups.

The UE grouping can be grouping controlled by the core network, that is, the core network directly determines the grouping and then sends it to the base station and UE; it can also be grouping based on UE ID. The terminal determines the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which the UE belongs based on the same rule.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Step 2, paging. FIG10 shows a paging process in which the Group ID is determined through the LP-SS and the SubGroup ID is determined through the LP-WUS, which includes the following steps S101 to S106.

In step S101, the network side pages a UE, the base station determines the Group ID and SubGroup ID of the paged UE, and selects the LP-SS sequence corresponding to the Group ID to send.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method, and then selects the LP-SS sequence corresponding to the Group ID to send.

It should be noted that more than n LP-SS sequences may be designed, each LP-SS sequence corresponds to one UE group or does not correspond to any UE group, and not corresponding to any UE group means that no UE group is paged, where n is the maximum number of groups supported by the cell.

It is understandable that there may be one or more terminals to be paged. If there is one terminal to be paged or there are multiple terminals to be paged and they belong to the same group, one LP-SS sequence is sent; if there are multiple terminals to be paged and they belong to different groups, multiple LP-SS sequences are sent, and LP-SS is used to indicate the paging group.

In step S102, the UE determines the Group ID of the group to which the paged UE belongs based on the LP-SS sequence and performs a match.

The UE whose main processing unit enters sleep mode turns on the low-power processing unit and performs LP-SS detection; if LP-SS is detected, the Group ID of the group to which the paged UE belongs is determined according to the LP-SS sequence, and then it is confirmed whether the UE's own Group ID matches the Group ID of the group to which the paged UE belongs. If they match, the subsequent subgroup information carried by the LP-WUS is detected, otherwise the paging process is not continued.

In step S103, the base station constructs and sends a LP-WUS message.

It should be noted that the paging subgroup information is carried in the LP-WUS message, that is, the LP-WUS contains the subgroup information to which the terminal to be paged belongs, and the LP-WUS indicates the paging subgroup information through bitmap information. The bit value is 1, indicating that the corresponding subgroup is paged, and the bit value is 0, indicating that the corresponding subgroup is not paged. This application does not limit the paging subgroup indication method, and other methods besides bitmap can be used for indication.

In step S104, the UE determines the SubGroup ID of the subgroup to which the paged UE belongs according to the LP-WUS sequence and performs a match.

The UE receives the LP-WUS message and decodes the paging subgroup information of the LP-WUS, determines the SubGroup ID of the subgroup to which the paged UE belongs, and then confirms whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs. If they do not match, the paging process will not continue. If they match, step S105 will be executed.

In step S105, the UE monitors the PDCCH in the PO and receives a paging message.

If the matching result of step S104 is a successful match, it means that the UE is a paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state, monitor the PDCCH in the PO, and detect the paging message.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S106, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

Example 2

Example 2 provides a method for determining the Group ID by using the LP-preamble, and The method for LP-WUS to determine the SubGroup ID at least includes the following steps 1 and 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g., n=2, 4, 6, 8, ...), and each Group has m SubGroups (e.g., m=2, 4, 6, 8, ...), there can be a maximum of n*m UE groups.

The UE grouping form can be grouping controlled by the core network, that is, the grouping is directly determined by the core network and then sent to the base station and UE; it can also be grouping based on UE ID. The UE and the terminal determine the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which it belongs based on the same rules.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Step 2, paging. FIG. 11 shows a paging process in which the Group ID is determined by the LP-preamble and the SubGroup ID is determined by the LP-WUS, which includes the following steps S201 to S206.

In step S201, the network side pages a UE, the base station determines the Group ID and SubGroup ID of the paged UE, and selects the LP-preamble code sequence corresponding to the Group ID.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof, to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method, and then selects the LP-preamble code sequence corresponding to the Group ID.

It should be noted that more than n LP-preamble code sequences can be designed, each LP-preamble code sequence corresponds to a UE group or does not correspond to any UE group. Not corresponding to any UE group means that no UE group is paged, where n is the maximum number of groups supported by the cell.

It is understandable that there may be one or more terminals to be paged. If there is one terminal to be paged or there are multiple terminals to be paged and they belong to the same group, one LP-preamble sequence is sent; if there are multiple terminals to be paged and they belong to different groups, multiple LP-preamble sequences are sent, and the LP-preamble sequence is used to indicate the paging group.

In step S202, the base station constructs an LP-WUS message and sends the LP-preamble and the LP-WUS message.

It should be noted that the paging group information is carried in the LP-preamble, and the paging subgroup information is carried in the LP-WUS message. LP-WUS contains the information of the subgroup to which the terminal to be paged belongs, and indicates the paging subgroup information through bitmap information. The bit value is 1, indicating that the corresponding subgroup is paged, and the bit value is 0, indicating that the corresponding subgroup is not paged. This application does not limit the paging subgroup indication method, and other methods besides bitmap can be used for indication.

In step S203, the UE determines the Group ID of the group to which the paged UE belongs based on the LP-preamble code sequence and performs a match.

The UE whose main processing unit enters the sleep state turns on the low power processing unit and performs LP-preamble sequence detection. If the LP-preamble sequence is detected, the Group ID of the group to which the paged UE belongs is determined based on the LP-preamble sequence, and then it is confirmed whether the UE's own Group ID matches the Group ID of the group to which the paged UE belongs. If they match, the subsequent sub-group information carried by the LP-WUS will continue to be detected, otherwise the paging process will not continue.

In step S204, the UE determines the SubGroup ID of the subgroup to which the paged UE belongs according to the LP-WUS sequence and performs a match.

The UE decodes the paging subgroup information of the LP-WUS, determines the SubGroup ID of the subgroup to which the paged UE belongs, and then confirms whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs. If they do not match, the paging process will not continue. If they match, step S205 will be executed.

In step S205, the UE monitors the PDCCH in the PO and receives a paging message.

If the matching result of step S204 is a successful match, it means that the UE is the paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state. Monitor PDCCH in PO to detect paging messages.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S206, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

Example 3

Example 3 provides a method for determining the Group ID through LP-SS and determining the SubGroup ID through LP-preamble code, which at least includes the following steps 1 to 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g., n=2, 4, 6, 8, ...), and each Group has m SubGroups (e.g., m=2, 4, 6, 8, ...), there can be a maximum of n*m UE groups.

The UE grouping form can be grouping controlled by the core network, that is, the grouping is directly determined by the core network and then sent to the base station and UE; it can also be grouping based on UE ID. The UE and the terminal determine the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which it belongs based on the same rules.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is the ID that identifies the terminal, which is issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192.

Step 2, paging. FIG. 12 shows a paging process in which the Group ID is determined by the LP-SS and the SubGroup ID is determined by the LP-preamble, which includes the following steps S301 to S306.

In step S301, the network side pages a UE, the base station determines the Group ID and SubGroup ID of the paged UE, and selects the LP-SS sequence corresponding to the Group ID to send.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method, and then selects the LP-SS sequence corresponding to the Group ID to send.

It should be noted that more than n LP-SS sequences may be designed, each LP-SS sequence corresponds to one UE group or does not correspond to any UE group, and not corresponding to any UE group means that no UE group is paged, where n is the maximum number of groups supported by the cell.

It is understandable that there may be one or more terminals to be paged. If there is one terminal to be paged or there are multiple terminals to be paged and they belong to the same group, one LP-SS sequence is sent; if there are multiple terminals to be paged and they belong to different groups, multiple LP-SS sequences are sent, and LP-SS is used to indicate the paging group.

In step S302, the UE determines the Group ID of the group to which the paged UE belongs based on the LP-SS sequence and performs a match.

The UE whose main processing unit enters sleep mode turns on the low power processing unit and performs LP-SS detection. If LP-SS is detected, the Group ID of the group to which the paged UE belongs is determined based on the LP-SS sequence, and then it is confirmed whether the UE's own Group ID matches the Group ID of the group to which the paged UE belongs. If they match, the subgroup information carried by the subsequent LP-preamble code will continue to be detected. Otherwise, the paging process will not continue.

In step S303, the base station selects the LP-preamble sequence corresponding to the SubGroup ID of the subgroup to which the paged UE belongs and constructs an LP-WUS message, and sends the LP-preamble and LP-WUS message.

It should be noted that the paging subgroup information is carried in the LP-preamble, and the LP-preamble can indicate the paging subgroup information through bitmap information. The bit value is 1, indicating the corresponding subgroup The bit value is 0, indicating that the corresponding subgroup is not paged. The present application does not limit the paging subgroup indication method, and other methods except bitmap can be used for indication.

In step S304, the UE determines the SubGroup ID of the subgroup to which the paged UE belongs based on the LP-preamble code sequence and performs a match.

The UE determines the SubGroup ID of the subgroup to which the paged UE belongs based on the paging subgroup information of the LP-preamble code, and then confirms whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs. If they do not match, the paging process will not continue. If they do match, step S305 will be executed.

In step S305, the UE monitors the PDCCH in the PO and receives a paging message.

If the matching result of step S304 is a successful match, it means that the UE is the paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state, monitor the PDCCH in the PO, and detect the paging message.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S306, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

Example 4

Example 4 provides a method for determining Group ID and SubGroup ID through LP-WUS, which is applicable to the situation where the paged UEs belong to the same group and different subgroups, and includes at least the following steps 1 to 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g. n = 2, 4, 6, 8, ...), each Group has m SubGroups (For example, m=2, 4, 6, 8, ...), there can be at most n*m UE groups.

The UE grouping form can be grouping controlled by the core network, that is, the grouping is directly determined by the core network and then sent to the base station and UE; it can also be grouping based on UE ID. The UE and the terminal determine the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which it belongs based on the same rules.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Step 2, paging. FIG. 13 shows the paging process of determining the Group ID and SubGroup ID through LP-WUS, which includes the following steps S401 to S404.

In step S401, the network side pages a UE, the base station determines the Group ID and SubGroup ID of the paged UE, and constructs an LP-WUS message.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method.

It should be noted that both the paging group information and the paging subgroup information are carried in the LP-WUS message. There can be two bitmaps in the LP-WUS, and the paging group information and the paging subgroup information are indicated by the bitmap information. The bit value is 1, indicating that the corresponding group or subgroup is paged, and the bit value is 0, indicating that the corresponding group or subgroup is not paged. This application does not limit the indication method of the paging group and the paging subgroup, and other methods besides the bitmap can be used for indication.

In step S402, the UE determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs based on LP-WUS and matches them.

The UE whose main processing unit enters the dormant state turns on the low power processing unit, receives the LP-WUS, parses the bitmap indicating the paging group, and determines the Group to which the paged UE belongs. ID, and then confirm whether the UE's own Group ID matches the Group ID of the group to which the paged UE belongs. If not, the paging process will not continue; if they match, continue to parse the bitmap indicating the paging subgroup, determine the SubGroup ID of the subgroup to which the paged UE belongs, and then confirm whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs. If not, the paging process will not continue. If they match, continue to execute step S403.

In step S403, the UE monitors the PDCCH in the PO and receives a paging message.

If the final matching result of step S402 is a successful match, it means that the UE is the paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state, monitor the PDCCH in the PO, and detect the paging message.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S404, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

Example 5

Example 5 provides a method for determining Group ID and SubGroup ID through LP-WUS, which is applicable to the situation where each UE being paged belongs to different groups, and at least includes the following steps 1 to 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g., n=2, 4, 6, 8, ...), and each Group has m SubGroups (e.g., m=2, 4, 6, 8, ...), there can be a maximum of n*m UE groups.

The UE grouping can be grouping controlled by the core network, that is, the core network directly determines the grouping and then sends it to the base station and UE; it can also be grouping based on UE ID. The terminal determines the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which the UE belongs based on the same rule.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, X is 3278, otherwise X is 8192.

Step 2, paging. FIG. 14 shows the paging process of determining the Group ID and SubGroup ID through LP-WUS, which includes the following steps S501 to S504.

In step S501, the network side pages a UE, the base station determines the Group ID and SubGroup ID of the paged UE, and constructs an LP-WUS message.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method.

It should be noted that both the paging group information and the paging subgroup information are carried in the LP-WUS message. There can be n bitmaps in the LP-WUS, corresponding to the n groups supported by the cell at most, and the paged subgroups in each group are indicated by the bitmap information. The bit value is 1, indicating that the corresponding subgroup is paged, and the bit value is 0, indicating that the corresponding subgroup is not paged. This application does not limit the indication method of the paging group and the paging subgroup, and other methods besides the bitmap can be used for indication.

In step S502, the UE determines the SubGroup ID of the subgroup to which the paged UE belongs based on the LP-WUS and performs a match.

The UE whose main processing unit enters the dormant state turns on the low power processing unit, receives the LP-WUS, parses each bitmap in turn, determines the SubGroup ID of the subgroup to which the paged UE belongs in each group, and then confirms whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs indicated by the bitmap corresponding to the UE's own group. If there is no match, the paging process will not continue. If there is a match, step S503 will be executed.

Step S503: The UE monitors the PDCCH in the PO and receives a paging message.

If the final matching result of step S502 is a successful match, it means that the UE is a paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state, monitor the PDCCH in the PO, and detect the paging message.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S504, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

Example 6

Example 6 provides a method for determining the SubGroup ID in n POs through LP-WUS, which includes at least the following steps 1 to 2.

Step 1: Group UEs.

The UEs belonging to a PO are grouped in two levels, where the first level is a large-grained grouping indexed by Group ID, and the second level corresponds to a finer-grained grouping indexed by SubGroup ID. As shown in Figure 9, the first level is the large-grained (Group) grouping of UEs, the second level is the fine-grained (SubGroup) grouping of UEs, and the third level corresponds to UEs. If the cell supports a maximum of n Groups (e.g., n=2, 4, 6, 8, ...), and each Group has m SubGroups (e.g., m=2, 4, 6, 8, ...), there can be a maximum of n*m UE groups.

The UE grouping form can be grouping controlled by the core network, that is, the grouping is directly determined by the core network and then sent to the base station and UE; it can also be grouping based on UE ID. The UE and the terminal determine the Group ID of the group to which the UE belongs and the SubGroup ID of the subgroup to which it belongs based on the same rules.

Exemplarily, subGroup_ID=UE_ID mod m, Group_ID=floor(UE_ID/m), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts the eDRX configuration, then X is 3278. Otherwise X is 8192.

Exemplarily, subGroup_ID=UE_ID mod n, Group_ID=floor(UE_ID/n), where UE_ID=5G-S-TMSI mod X, 5G-S-TMSI is an ID that identifies the terminal and is issued by the core network. If the base station adopts eDRX configuration, then X is 3278, otherwise X is 8192.

Step 2, paging. Figure 15 shows the paging process of determining the SubGroup ID in n POs through LP-WUS, which includes the following steps S601 to S606.

In step S601, the network side pages a UE, and the base station determines the Group ID and SubGroup ID of the paged UE and constructs a paging message.

The network side pages the UE and sends relevant information of the paged UE, such as UE ID, Group ID, SubGroupID or any combination thereof to the base station. The base station determines the Group ID of the group to which the paged UE belongs and the SubGroup ID of the subgroup to which it belongs according to the core network control grouping method or the UE ID-based grouping method, and then selects the LP-SS sequence or LP-preamble sequence corresponding to the Group ID to send.

It should be noted that more than n LP-SS sequences or LP-preamble code sequences can be designed, each LP-SS sequence or LP-preamble code sequence corresponds to one UE group or does not correspond to any UE group, and not corresponding to any UE group means that no UE group is paged, where n is the maximum number of groups supported by the cell.

It can be understood that there may be one or more terminals to be paged. If there is one terminal to be paged or there are multiple terminals to be paged and they belong to the same group, one LP-SS sequence or one LP-preamble sequence is sent; if there are multiple terminals to be paged and they belong to different groups, multiple LP-SS sequences or multiple LP-preamble sequences are sent, and the LP-SS sequence or LP-preamble sequence is used to indicate the paging group.

In step S602, the UE determines the Group ID of the group to which the paged UE belongs based on the LP-SS sequence or the LP-preamble sequence and performs a match.

The UE whose main processing unit enters the dormant state turns on the low power processing unit and performs LP-SS detection or LP-preamble detection; if LP-SS or LP-preamble is detected, the Group ID of the group to which the paged UE belongs is determined according to the LP-SS sequence or LP-preamble sequence, and then it is confirmed whether the Group ID of the UE itself matches the Group ID of the group to which the paged UE belongs. If they match, the subsequent LP-WUS-borne subgroup information is detected, otherwise the page is not continued. Continue this paging process.

In step S603, the base station constructs and sends a LP-WUS message.

It should be noted that the paging subgroup information in n POs is carried in the LP-WUS message, that is, LP-WUS contains the information of the subgroup to which the UE to be paged in n POs belongs. LP-WUS can have n bitmaps, and indicate the paging subgroup information through bitmap information. A bit value of 1 indicates that the corresponding subgroup is paged, and a bit value of 0 indicates that the corresponding subgroup is not paged. This application does not limit the paging subgroup indication method, and other methods besides bitmap can be used for indication.

In step S604, the UE determines the SubGroup ID of the subgroup to which the paged UE belongs in the n POs in turn according to the n bitmaps of LP-WUS and performs matching.

The UE receives the LP-WUS message and decodes the n paging subgroup information of the LP-WUS, determines the SubGroup ID of the subgroup to which the paged UE belongs in each PO in turn, and then confirms whether the UE's own SubGroup ID matches the SubGroup ID of the subgroup to which the paged UE belongs. If they do not match, the paging process will not continue. If they match, step S605 will be executed.

In step S605, the UE monitors the PDCCH in the PO and receives a paging message.

If the matching result of step S604 is a successful match, it means that the UE is the paged UE or belongs to the same subgroup as the paged UE, thereby triggering the main processing unit of the UE to enter the open state, monitor the PDCCH in the PO, and detect the paging message.

It should be noted that the time and frequency synchronization of the UE and the base station must be ensured before monitoring PO. The synchronization of the UE and the base station can be achieved in a variety of ways, and this application does not specifically limit this.

In step S606, the UE determines that it is paged according to the paging message and initiates a random access process.

The UE monitors the paging PDCCH, reads the paging message scheduled by the PDCCH, and decodes the paging message to determine the ID of the paged UE. If the UE's own ID matches the ID of the paged UE indicated in the paging message, the UE is the paged UE, initiates a random access process, and then enters the connected state to send and receive data.

A communication device provided in an embodiment of the present application includes a processor and a memory. The number of the processor and the memory can be one or more, and can be connected through a bus or other means.

A communication base station provided in one embodiment of the present application includes a processor and a memory. The number of processors and memories can be one or more, and they can be connected via a bus or other means.

An embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions. When the computer-executable instructions are executed, the paging method provided in any embodiment of the present application can be implemented.

The system architecture and application scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of the system architecture and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules/units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

In hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process or an execution thread, and a component may be located on a computer or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may communicate, for example, through a local or remote process based on a signal having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, or a network, such as the Internet interacting with other systems through signals).

The above describes some embodiments of the present application with reference to the accompanying drawings, but does not limit the scope of the present application. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present application shall be within the scope of the present application.

Claims (28)

A paging method is applied to a communication device, wherein the communication device includes a first processing unit and a second processing unit, the first processing unit is a low power consumption processing unit, and the method includes: Receiving first paging information through the first processing unit of the communication device, and obtaining a paging target group identifier according to the first paging information, wherein the paging target group identifier is used to indicate at least one to-be-paged group to which the to-be-paged communication device belongs; According to the paging target group identifier, a first paging is performed by the first processing unit of the communication device. The paging method according to claim 1, wherein the first paging comprises one of the following: In this paging cycle, stop receiving the second paging information; In this paging cycle, receiving second paging information through the first processing unit, and obtaining a paging target subgroup identifier according to the second paging information, wherein the paging target subgroup identifier is used to indicate at least one to-be-paged subgroup to which the to-be-paged communication device belongs; According to the paging target subgroup identifier, second paging is performed by the first processing unit. The paging method according to claim 2, wherein the second paging comprises one of the following: In this paging cycle, stop receiving the third paging information; In this paging cycle, the second processing unit is awakened to receive the third paging information. The paging method according to claim 3, further comprising: According to the third paging information, the second processing unit determines the identity information of the communication device to be paged, wherein the identity information of the communication device to be paged is used to indicate the communication device to be paged; Performing a third paging through the second processing unit according to the identity information of the communication device to be paged. The paging method according to claim 4, wherein the third paging comprises one of the following: During this paging cycle, random access and subsequent information transmission and reception are stopped; Initiate random access in this paging cycle. The paging method according to any one of claims 1 to 5, wherein the first paging information is a preamble code sequence or a low power synchronization sequence. The paging method according to any one of claims 2 to 5, wherein the second paging information is at least one of a low power wake-up signal or a preamble sequence. The paging method according to any one of claims 1 to 5, further comprising: Receive group information, wherein the group information includes at least one of the following: the group to which the communication device belongs; The subgroup to which the communication device belongs. The paging method according to claim 8, further comprising: Sending support capability information, wherein the support capability information is used to represent at least one of the following: The low power consumption processing capability supported by the communication device; The communication device supports multi-level packet capabilities. The paging method according to claim 8, wherein the grouping information is obtained according to at least one of the following: The communication device identity information; and The maximum group information of the network cell corresponding to the communication device, wherein the maximum The group information includes at least one of the following: The maximum supported group of the network cell; The network cell supports a maximum subgroup. The paging method according to claim 10, wherein the maximum group information is determined by a support capability of a network cell to which the communication device belongs, and the support capability includes at least one of the following: The maximum group support capability of the network cell; The maximum subgroup supporting capability of the network cell. A paging method is applied to a communication device, wherein the communication device includes a first processing unit and a second processing unit, the first processing unit is a low power consumption processing unit, and the method includes: Receiving, by the first processing unit of the communication device, first paging information, wherein the first paging information includes a first indication and a second indication; Obtaining a paging target group identifier according to the first indication, wherein the paging target group identifier is used to indicate at least one to-be-paged group to which the to-be-paged communication device belongs; According to the paging target group identifier, a first paging is performed by the first processing unit of the communication device. The paging method according to claim 12, wherein the first paging comprises one of the following: In this paging cycle, stop receiving the second paging information; During this paging cycle, a paging target subgroup identifier is obtained through the second indication of the first processing unit, wherein the paging target subgroup identifier is used to indicate at least one paging subgroup to which the communication device to be paged belongs, and a second paging is performed through the first processing unit according to the paging target subgroup identifier. The paging method according to claim 13, wherein the second paging comprises one of the following: In this paging cycle, stop receiving the second paging information; In this paging cycle, the second processing unit is awakened to receive the second paging information. The paging method according to claim 14, further comprising: Determining, by the second processing unit, the identity information of the communication device to be paged according to the second paging information, wherein the identity information of the communication device to be paged is used to indicate the communication device to be paged; Performing a third paging through the second processing unit according to the identity information of the communication device to be paged. The paging method according to claim 15, wherein the third paging comprises one of the following: During this paging cycle, random access and subsequent message sending and receiving are stopped; Initiate random access in this paging cycle. A paging method, applied to a base station, comprising: Sending a first paging message carrying a paging target group identifier, wherein the paging target group identifier is used to indicate at least one paging group to which the communication device to be paged belongs, and the number of the communication device to be paged is at least one; Sending a second paging message carrying a paging target subgroup identifier, wherein the paging target subgroup identifier is used to indicate at least one paging target subgroup to which the communication device to be paged belongs; A third paging message carrying paging target identity information is sent, wherein the paging target identity information is used to indicate the communication device to be paged. A paging method, applied to a base station, comprising: Sending a first paging message carrying target group information, and at least one communication device receiving the first paging message performs matching according to the target group information and obtains a first matching result; Sending a second paging message carrying target subgroup information, and at least one communication device receiving the second paging message performs matching according to the target subgroup information and obtains a second matching result; A third paging message carrying the paging target identity information is sent, and at least one communication device receiving the third paging message performs matching according to the paging target identity information to obtain a third matching result. The paging method according to claim 18, wherein: The communication device receiving the first paging information determines whether to receive the second paging information according to the first matching result; The communication device receiving the second paging information determines whether to receive the third paging information according to the second matching result; The communication device receiving the third paging information determines whether to wake up the main processing unit of the communication device according to the third matching result. A paging method, applied to a base station, comprising: Sending a first paging message including a first indication and a second indication, wherein at least one communication device receiving the first paging message performs a first match according to target group information corresponding to the first indication and obtains a first matching result, and performs a second match according to a target subgroup corresponding to the second indication and obtains a second matching result; A second paging message including the paging target identity information is sent, and at least one communication device receiving the second paging message performs a third match according to the paging target identity information and obtains a third matching result. The paging method according to claim 19, wherein: The communication device receiving the first paging information determines whether to perform the second matching according to the first matching result; At least one communication device receiving the first paging information determines whether to perform the third matching according to the second matching result; The communication device receiving the second paging information determines whether the third matching result A main processing unit of the communication device is awakened. A paging method is applied to a communication system including at least a base station and a communication device, wherein the communication device includes a main processing unit and a low power consumption processing unit, and the method includes: The base station sends a first paging message; The communication device receives the first paging information through the low power consumption processing unit, and obtains a paging target group according to the first paging information; The communication device matches the paging target group with the group to which the communication device belongs through the low power consumption processing unit to obtain a first matching result; Perform a first paging according to the first matching result. The paging method according to claim 22, wherein the first matching result includes a match or a non-match, and the first paging includes: When the first matching result is no match, the communication device stops receiving the second paging information in this paging cycle; When the first matching result is a match, the following steps are performed: The base station sends second paging information; The communication device receives the second paging information through the low power consumption processing unit, and obtains the paging target subgroup according to the second paging information; The communication device matches the paging target subgroup with the subgroup to which the communication device belongs through the low power consumption processing unit to obtain a second matching result; Perform a second paging according to the second matching result. The paging method according to claim 23, wherein the second matching result includes a match or a non-match, and the second paging includes: When the second matching result is no match, the communication device stops detecting the third paging information in this paging cycle; When the second matching result is a match, perform the following steps: The base station sends third paging information; The communication device receives the third paging information through the main processing unit, and obtains the paging target identity information according to the third paging information; The communication device matches the paging target identity information with the communication device identity information through the main processing unit to obtain a third matching result; A third paging is performed according to the third matching result. The paging method according to claim 24, wherein the third matching result includes a match or a non-match, and the third paging includes: When the third matching result is no match, the communication device stops random access and subsequent message reception and transmission in this paging cycle; When the third matching result is a match, the communication device initiates random access. A communication device comprises a memory and a processor, wherein the memory stores a computer program, wherein the processor implements the paging method according to any one of claims 1 to 16 when executing the computer program. A communication base station comprises a memory and a processor, wherein the memory stores a computer program, wherein the processor implements the paging method described in any one of claims 17 to 21 when executing the computer program. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the paging method according to any one of claims 1 to 25.