CN102387472B

CN102387472B - The method of subscriber equipment and receiving multimedia broadcast and multicast service

Info

Publication number: CN102387472B
Application number: CN201010276457.7A
Authority: CN
Inventors: 王斌; 卢忱; 胡剑; 马子江
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-09-02
Filing date: 2010-09-02
Publication date: 2016-03-30
Anticipated expiration: 2030-09-02
Also published as: CN102387472A

Abstract

The invention discloses a kind of method of subscriber equipment and receiving multimedia broadcast and multicast service, the method comprises: UE receives multicast control channel MCCH information; According to the positional information that effective coverage information and the UE self of the MBMS comprised in MCCH information provide, receive MBMS, or, enter MBMS wait state.By method of the present invention, UE can carry out the judgement of area information, corresponding MBMS is received in effective coverage, MCCH information is monitored outside effective coverage, realize the method that complete UE receives MBMS, reduce UE and bothered and avoid UE in the power loss receiving hash by hash.

Description

User equipment and method for receiving multimedia broadcast and multicast service

Technical Field

The present invention relates to a Long Term Evolution (LTE) system, and more particularly, to a method for a User Equipment (UE) to receive a Multimedia Broadcast and Multicast Service (MBMS).

Background

With the rapid development of the Internet and the popularization of large-screen multifunctional mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services, such as video conferences, television broadcasts, video on demand, advertisements, online education, interactive games, etc., appear, which on the one hand meet the ever-increasing service demands of mobile users and on the other hand bring new service growth points for mobile operators. These mobile data multimedia services require that multiple users can receive the same data at the same time, and compared with general data services, the mobile data multimedia services have the characteristics of large data volume, long duration, time delay sensitivity and the like.

In order to effectively utilize mobile network resources, the third generation partnership project 3GPP proposes an MBMS service, which is a technology for transmitting data from one data source to a plurality of targets, and implements sharing of network (including core network and access network) resources and improves utilization of network resources (especially air interface resources). The MBMS defined by 3GPP can not only implement plain text low-rate message multicast and broadcast, but also implement broadcast and multicast of high-speed multimedia services, and provide various rich video, audio, and multimedia services, which undoubtedly follows the development trend of future mobile data, and provides better service prospects for the development of 3G.

Currently, MBMS service is introduced in long term evolution release 9(LTER9) system. The MBMS service is carried in the system and needs the common transmission of control signaling and user data. The control signaling informs a receiving end (or a terminal, a User Equipment (UE)) of a corresponding control parameter, and directs the UE to receive the MBMS service (i.e., corresponding user data) that the UE is interested in at a corresponding location. Such MBMS control signaling (control information including configuration information of MBMS service and the like) is transmitted through a Multicast Control Channel (MCCH) in the lte 9 system, and the MBMS service is transmitted through a Multicast Traffic Channel (MTCH). Specifically, the MBMS control signaling (i.e., MCCH information) transmitted on the logical channel MCCH mainly includes: multicast resources in a multicast single frequency network (MBSFN) area corresponding to the MCCH information, where all MBMS services being transmitted (or referred to as MBMS services that have already started or referred to as MBMS services that have already been sessionstart) in the MBSFN area, and configuration and attribute information of the ingmbms services; the logical channel MTCH carries MBMS service data, and generally associates the MBMS service with MTCH (for example, MBMS service1 corresponds to MTCH1, and MBMS service2 corresponds to MTCH2), that is, the meaning of the UE reading the MBMS service and the UE reading the MTCH is the same.

MBMS control signaling (MCCH information) and MBMS service are transmitted by taking an MBSFN area as a range; the MCCH is in one-to-one correspondence with the MBSFN areas, that is, the information contents of the MCCH correspondingly transmitted by different MBSFN areas are different; the MBSFN area is composed of a series of cells. Specifically, one MBSFN area includes 1 or more cells under the control of an evolved base station (eNB). FIG. 1 is a schematic diagram of a conventional MBSFN area logic, which is shown as including 19 cells, wherein cells 1 to 6 are cells controlled by eNB 1; cells 7 to 13 are cells controlled by eNB 2; the cells 14 to 19 are cells controlled by the eNB 3.

The cell is a basic concept in the field of wireless communication, and logically indicates the coverage range of wireless signals; the cells are planned when an operator deploys a network, each cell has a unique identification CellID, and the CellID is sent in the cell through Broadcast Control Channel (BCCH) information; the UE can obtain the CellID of the cell by reading the BCCH information; the eNB also has an identification eNBID of the eNB, and different eNB devices can be identified through different eNBIDs; a tracking area (TA, Track area) composed of a group of cells is mainly used for the role of network side paging; the cells of the group will have the same TA value and transmit on the BCCH of each cell in the form of Tracking Area Code (TAC); the UE can acquire the position of the TA of the UE by reading the tracking area code in the BCCH information. Further, the MCCH information corresponding to the MBSFNarea is sent according to a certain rule (a repetition period, a modification period), as shown in fig. 2.

As shown in fig. 2, the MCCH information is repeatedly transmitted one or more times within the modification period (3 times in fig. 2); the time interval between the repeated sending of the MCCH information is called an MCCH repetition period; generally, in an MCCH modification period, the first transmission of MCCH information is referred to as first transmission, the transmission in each repetition period is referred to as MCCH information repetition transmission, and the content of the MCCH information repetition transmission is identical to the MCCH information first transmission; the MCCH modification period indicates that the contents of the MCCH information sent may be different in different MCCH modification periods; for example, the content of the MCCH modification period n +1 period is different from the content of the n period in fig. 2 (the different content of the MCCH information is indicated by the shaded square and the blank square in fig. 2); it should be noted that, in the MCCH modification period, the content of the MCCH information cannot be changed, and only can be repeatedly transmitted following the repetition period.

The configuration parameters of the MCCH repetition period and the modification period are configured by the network side, and the network side sends the configuration parameters to the UE through SIB13 (systemlnformationblock 13, system information block 13) in the BCCH; the UE can know the configuration parameters of the MCCH repetition period and the modification period by reading the SIB13 in the BCCH, and the UE can read the MCCH information at the corresponding location.

The MBMS service is characterized by a large data volume of the service, a long duration of time for the terminal to receive, and a relatively constant average data rate. The above characteristics determine that the control information of the MBMS service is semi-statically configured, that is, the control information of the MBMS service remains unchanged for a long time (that is, the MCCH information content is not changed for a plurality of consecutive MCCH modification periods); thus, the network side will always send an MCCH information without change (always because there is a new user access available at any time). Thus, for a terminal that has obtained MCCH information, if it receives an unchanged MCCH information each time, it will cause the terminal to consume electricity, because the amount of MCCH information is large, and the receiving and analyzing process is relatively power consuming.

Therefore, it is proposed to introduce an MBMS notification message, a notification message (or referred to as mcchangenotification, mbmsnotifiationindicator, mbmsnotifiationinformation, mbmsnotifiationchannel, MBMS notification message, MBMS notification information, or MBMS indication information, etc., which is described herein by taking mbmsnotifiationas an example), and describe whether MCCH information to be sent in a next MCCH modification period (modified period, MP) and MCCH information sent in the MP are updated with a small amount of information, and the UE only needs to monitor a small amount of MBMS notification message information and then determines whether to receive the upcoming MCCH information according to the MBMS notification message terminal. The specific sending position of the MCCHnotification is informed by SIB13 in BCCH; when there is an overlapping coverage situation in a cell, one uniform (common) MCCHnotification will be used for all MCCHs in the cell to indicate a plurality of MCCH change situations; specifically, the MCCHnotification will indicate by its payload (payload), which one or more MCCH is changed, wherein the payload of MCCHnotification is 8bits, and DCI (downlink control information) Format1C is used for transmission in PDCCH (physical downlink control channel); the MCCHnotification supports up to 8 MCCH indications, wherein a certain bit of a particular MCCHnotification indicates which MCCH will be informed by SIB13 in the BCCH. The MCCHnotification is repeatedly transmitted in the MCCHMP for a plurality of times (or 1 time), and the main purpose of repeatedly transmitting the MCCHnotification in the MCCHMP is to improve the reception reliability. The MCCH notification modification (MCCHnotification) is only triggered by the session start of the MBMS service, and the MCCH notification transmission will not be triggered by the modification reasons of other MCCH messages (such as session stop and session update); that is, the current MCCHNotification can only reflect the MBMS service SessionStart and which MBMS service or MBMS services have/have generated the SessionStart, that is, the following information in the following MCCH messages changes and is not reflected in the MCCHNotification: 1) the configuration information of the MCCH channel is changed, such as: the MBSFNsubframe configuration information of one MBSFNarea changes; 2) sessionupdate and SessionStop for MBMS service; 3) specifically which MBMS service the SessionStart occurred.

According to the prior art, in an MBSFN area, MBMS service that is interested by MBMS-capable UEs (referred to as UE for short, and UEs without MBMS capability are not in the discussion range of the patent) will be selected from ESG (electrical service guide); after the UE selects the MBMS service which is interested in the UE, the MCCH information is read for the first time, and whether the MBMS service which is interested in the UE is transmitted or not is judged through the acquired MCCH information. If the MBMS is being sent, the UE will directly read the MBMS; otherwise, the UE will periodically monitor the MBMSnotification until the notification triggers the UE to receive the MCCH information again, and make a new determination. As shown in particular in figure 3.

In the prior art, the MBMS service reception by the UE is defined as two states, namely, an MBMS idle state (MBMS idle state) and an MBMS active state (MBMS active state); namely: the UE in the MBMS idle state always monitors the MBMS notification channel, and the UE in the MBMS active state always receives the MTCH (MBMS traffic channel, that is, receives the MBMS traffic). Specifically, when a UE is interested in a certain MBMS service/services, if the service/services has/have not started (notssenstart, indicating that the service has/has not started to be transmitted), the UE always monitors only the Notification (MBMS Notification channel) to wait for the service/services to start, and the UE is in the MBMS idle state; when a UE is interested in a certain MBMS service/services, if the service/services has/have started (sessionstart, indicating that the service is being transmitted, the service status is an ingmbms service), the UE receives an MTCH (MBMS traffic channel) to read the service/services, and the UE is in an MBMS active status at this time.

According to the prior art, each ongoningmbms service contained in the MCCH information is sent in the entire MBSFNarea; and the MCCH information will contain configuration and attribute information of each ingmbms service, which contains valid area information (area information for short) of each ingmbms service; the area information indicates a specific effective usage range of each ingogoing mbms service within the MBSFNarea. As shown in fig. 4. In fig. 4, a certain ingoing MBMS service will be transmitted in the whole MBMS fnarea, but the cell filled with diagonal lines is the effective area of the MBMS service; i.e. the MBMS service is active in the active area, i.e. can be received by the UE. Outside the active area, although the UE may also receive the MBMS service, the received MBMS service is useless data or is disturbing to the UE, which increases the power consumption of the UE.

The problems that exist at present are: a network side sends MBMS service in the whole MBSFNarea and indicates the area information of the MBMS service in the MCCH; according to the prior art, the UE receiving the MBMS service will not distinguish the regional information; this results in that the UE also receives the MBMS service outside the active area of the MBMS service, which is useless data or a disturbance to the UE and increases the power consumption of the UE.

Disclosure of Invention

The present invention is directed to a UE and a method for receiving an MBMS service thereof, so as to at least solve the problem that the UE consumes more power when receiving the MBMS service.

According to an aspect of the present invention, there is provided a method for a UE to receive an MBMS, the method including: UE receives multicast control channel MCCH information; and the UE receives the MBMS or enters an MBMS waiting state according to the effective area information of the MBMS contained in the MCCH information and the position information provided by the UE.

Preferably, the step of receiving the MBMS service or entering the MBMS waiting state according to the valid area information of the MBMS service included in the MCCH information and the location information provided by the UE itself includes: judging whether the effective area information of the MBMS contained in the MCCH information accords with the position information provided by the UE; if the judgment result is yes, the UE receives the MBMS service; and if the judgment result is negative, the UE enters an MBMS waiting state.

Preferably, the step of the UE entering the MBMS waiting state includes: UE continues to receive the MCCH information and judges whether the MBMS effective area information contained in the received MCCH information accords with the position information provided by the UE, if so, the UE receives the MBMS; if the judgment result is negative, the UE maintains the MBMS waiting state; and when the service is ended and the judgment result is still negative, giving up receiving the MBMS service.

Preferably, the step of determining whether the valid area information of the MBMS service included in the MCCH information matches the location information provided by the UE itself includes one of the following: judging whether the position of the UE corresponding to the position information is in an effective area corresponding to the effective area information of the MBMS or not; and judging whether the position of the UE corresponding to the position information is overlapped with the effective area corresponding to the MBMS effective area information.

Preferably, the step of the UE continuing to receive the MCCH information comprises: the UE receives the MCCH information every predetermined time period.

Preferably, the predetermined time period is configured by the UE or configured by the network side.

Preferably, the predetermined period of time is an integer multiple of an MCCH modification period or an integer multiple of an MCCH repetition period.

Preferably, the effective area information includes at least one of the following information: cell information sent by the MBMS, base station eNB information sent by the MBMS, tracking area information sent by the MBMS and coordinate information sent by the MBMS; the location information includes at least one of: the cell identification information of the current cell of the UE, the eNB identification information of the current eNB of the UE, the tracking area information of the current cell of the UE and the latitude and longitude information of the UE.

According to another aspect of the present invention, there is provided a UE, including: the control information receiving module is used for receiving multicast control channel MCCH information; and the service information receiving module is used for receiving the MBMS service or entering an MBMS waiting state according to the effective area information of the MBMS service and the position information provided by the UE per se, wherein the effective area information of the MBMS service is contained in the MCCH information received by the control information receiving module.

Preferably, the service information receiving module includes: the judging submodule is used for judging whether the effective area information of the MBMS contained in the MCCH information accords with the position information provided by the UE; the receiving submodule is used for receiving the MBMS under the condition that the judgment result of the judging submodule is in accordance; and the processing submodule is used for entering an MBMS waiting state under the condition that the judgment result of the judgment submodule is not in conformity.

Preferably, the processing submodule includes: a notification unit, configured to notify the control information receiving module to continue receiving the MCCH information; and the notification unit is used for giving up receiving the MBMS service if the judgment result of the judgment submodule is still negative until the service is finished.

Preferably, the judgment sub-module includes: the first judging submodule is used for judging whether the position of the UE corresponding to the position information is positioned in an effective area corresponding to the effective area information of the MBMS; and the second judging submodule is used for judging whether the position of the UE corresponding to the position information is overlapped with an effective area corresponding to the MBMS effective area information.

According to the method, the UE receives the MBMS service or enters the MBMS waiting state according to the effective area information of the MBMS service contained in the MCCH information and the position information provided by the UE, the problem that the UE power consumption is increased when the UE receives the MBMS service in the related technology is solved, the UE can judge the area information, receives the corresponding MBMS service in the effective area and monitors the MCCH information outside the effective area, the complete method for the UE to receive the MBMS service is realized, the disturbance of the UE by useless data is reduced, and the power loss of the UE receiving the useless data is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of MBSFN area logic according to the related art;

fig. 2 is a logical relationship diagram of an MCCH information repetition period and a modification period according to the related art;

fig. 3 is a flowchart of a UE receiving an MBMS service according to the related art;

FIG. 4 is a schematic diagram of the logical relationship between MBSFN areas and active areas according to an embodiment of the present invention;

fig. 5 is a flowchart of a method for a UE to receive an MBMS service according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a UE receiving traffic information according to an embodiment of the present invention;

fig. 7 is a flowchart of MBMS service reception according to a first embodiment of the present invention;

fig. 8 is a flowchart of MBMS service reception with waiting time T added according to a second embodiment of the present invention;

fig. 9 is a block diagram of a UE according to an embodiment of the present invention;

fig. 10 is a block diagram of a preferred structure of a UE according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, the UE in the embodiment of the present invention is a UE having self-positioning capability and MBMS service capability, and a UE without self-positioning capability or MBMS service capability is not within the scope of the present invention.

According to an embodiment of the present invention, there is provided a method for receiving an MBMS service by a UE, as shown in fig. 5, the method includes:

step 502, the UE receives the multicast control channel MCCH information.

In step 504, the UE receives the MBMS service or enters an MBMS waiting state according to the valid area information of the MBMS service included in the MCCH information and the location information provided by the UE itself.

Step 504 may be implemented as follows: judging whether the effective area information of the MBMS contained in the MCCH information accords with the position information provided by the UE; if the judgment result is yes, the UE receives the MBMS service; and if the judgment result is negative, the UE enters an MBMS waiting state.

Wherein, the UE entering the MBMS waiting state comprises: UE continues to receive the MCCH to obtain the continuously updated effective area information of the service, and judges whether the effective area information of the MBMS contained in the received MCCH information accords with the position information provided by the UE, if so, the UE receives the MBMS; if the judgment result is negative, the UE maintains the MBMS waiting state; and when the service is ended, if the judgment result is still negative, giving up receiving the MBMS service. It should be noted that, the update of the effective area of the MBMS service or the mobility of the UE itself may cause the effective area of the MBMS service to be consistent with the location information provided by the UE itself.

The step of determining whether the effective area information of the MBMS service included in the MCCH information matches the location information provided by the UE itself may include: judging whether the position of the UE corresponding to the position information is in an effective area corresponding to the effective area information of the MBMS or not; or judging whether the position of the UE corresponding to the position information is overlapped with the effective area corresponding to the MBMS effective area information.

Further, the step of the UE continuing to receive the MCCH information may include: one optimized way for the UE to receive the MCCH information is for the UE to receive the MCCH information every predetermined time period, where the predetermined time period may be configured for the UE or configured on the network side. The predetermined time period is an integer multiple of an MCCH modification period or an integer multiple of an MCCH repetition period.

The MBMS service valid area information included in the MCCH information may include one or more of the following information: cell information (CellID) transmitted by the MBMS service, eNB information (eNBID) transmitted by the MBMS service, Tracking Area (TA) information (TAC, trackarea code) transmitted by the MBMS service, and coordinate information (longitude, latitude, and radius transmitted by the MBMS service) transmitted by the MBMS service;

the location information provided by the UE itself includes one or more of the following: the UE acquires cell identification information (CellID) of a current cell according to the system information, acquires eNB identification information (eNBID) of the current eNB according to the system information, acquires tracking area information (TAC) information of the current cell according to the system information, and acquires longitude and latitude information according to a self positioning device.

Further, the determining whether the valid area information of the MBMS service included in the MCCH information and the location information provided by the UE itself conform to each other specifically includes one of the following ways:

(1) if the UE location information (CellID) and the effective area (the effective area information is CellID or CellID group) completely or partially overlap, the determination result is yes;

(2) when the UE location information (eNBID) is located in the effective area (the effective area information is eNBID or an eNBID group) and is completely or partially overlapped, the determination result is yes;

(3) when the UE position information (TAC) is located in the effective area (the effective area information is the TAC or the TAC group) and is completely or partially overlapped, the judgment result is yes;

(4) if the UE location information (latitude and longitude) is located in the effective area (latitude and longitude and radius information), and if the UE location information (latitude and longitude) is completely or partially overlapped, the determination result is yes.

In the present invention, a new state of receiving the MBMS service by the UE is defined: MBMS waiting state (MBMS waiting state), namely: and the UE receives three states of the MBMS service: the MBMSidle and MBMSactive states, and the MBMSwaiting state.

The first two states are exactly the same as the prior art, and the UE receives the MCCH information periodically while in the mbms waiting state. In the present invention, the following means: when a UE is interested in a certain MBMS service/services and the service/services have/have started (sessionstart), the UE compares whether its location matches the effective area of the service/services; the term "correspond to" means: the UE position is in the effective area of the service, or the position overlaps with the effective area of the service, if the position accords with the effective area, the UE receives the MTCH to read the content of the service, and the UE enters the MBMSactive state; if not, the UE does not receive MTCH (not enter MBMSactive state) and does not fall back to listening Notification (MBMSidle state because the service has already started), but always receives MCCH to obtain the valid area information of the service and the scheduling information of the service, which may be continuously updated, and the UE is in MBMSwaiting state until the service is ended (sessionstop).

For example, a UE is interested in an MBMS service (e.g., traffic information), the content of which is carried on MTCH, including: traffic congestion information, traffic accident information, etc. in an MBSFN area (e.g., a medium city); the control information of the MBMS service (i.e., traffic information) includes: configuration information (i.e., how MBMS service is configured on MTCH) and effective area information (e.g., where the traffic information is effective), which are carried on MCCH.

The UE receives the MCCH information to read the control information of the traffic information, if the traffic information does not start, the UE does not continue to receive the MCCH, and continuously monitors the MBMSNotification (enters an MBMSidle state); if the MBMS service starts, the UE is triggered by the Notification, and then the MCCH is read; by reading the control information on the MCCH, if the started MBMS is not the interesting traffic information, the UE continues to monitor the Notification; if the started MBMS service is the traffic information which is interested in the MBMS service, the UE also judges whether the effective area of the service is consistent with the position of the UE, if not, the UE enters an MBMSwaiting state and periodically receives the MCCH until the service is ended to acquire the effective area information which is possibly updated continuously; if yes, UE enters MBMSactive state to start receiving the content of the service on MTCH.

As shown in fig. 6: on one MBSFN area, traffic information is transmitted with MBMS service and has already started (sessionstart).

Time 1: traffic jam occurs at positions A and C;

time 2: a traffic jam occurs at position C and a traffic accident occurs at position B (the traffic jam is recovered at position A);

time 3, 4: traffic jam occurred at location C, (traffic accident recovered at location B);

there is an interest in traffic information by a UE that reads the control channel MCCH of the service.

At the moment 1, the UE reads that the effective area of the service is the positions A and C which are not accordant with the position of the UE, the UE continues to periodically read the MCCH, and the UE enters an MBMSwaiting state;

at time 2, the UE reads that the effective area of the service is location C, B, which coincides with its own location, and reads MTCH to obtain the content of the service, that is: the UE knows the information related to it: when a traffic accident happens at the position B and a traffic jam happens at the position C, the UE enters an MBMSactive state;

at the moment 3, the UE reads that the effective area of the service is the position C, the position C does not accord with the position of the UE, the UE does not read the MTCH any more, the UE continues to read the MCCH periodically, and the UE returns to the MBMSwaiting state;

at time 4, the UE reads that the effective area of the service is location C, which coincides with its own location, and reads MTCH to obtain the content of the service, that is: the UE knows the information related to it: a traffic jam occurs at location C because the UE moves from location B to location C due to its own location change. The UE enters the MBMSactive state.

The technical solution of the present invention is further elaborated below with reference to specific examples.

Example one

The flow of the first embodiment of the MBMS service transmission method of the present invention is shown in fig. 7, and includes:

step 701: the UE selects the MBMS service (e.g.: TMGI, sessionID, MBMSserviceID) or MBMS service group (e.g.: MBSFNareaID, PMCBHID) which the UE is interested in;

specifically, the selection of the interested MBMS service group by the UE means that the UE selects a group of MBMS services, and the UE is interested in the group of MBMS services; generally, a group of MBMS services is identified with a common parameter of the MBMS services (e.g., MBSFNareaID or pmcdid);

step 702: the UE receives the MCCH information;

further, the MCCH information includes all MBMS services that have been sessionstart (i.e., an ingmbms service, or referred to as an MBMS service being transmitted); that is, the UE will know all the MBMS services that have been sessionstart by acquiring the MCCH information; furthermore, the MCCH information also includes identification information (e.g. MBSFNareaID, PMCBHID, TMGI, sessionID, MBMSserviceID, etc.) and control information (e.g. MBMS service effective area information, etc.) of each already sessionstart

Step 703: UE judges whether the MBMS which is interested in the UE is being sent or not; the judgment is based on the prior art; if yes, go to step 704; otherwise, go to step 706;

step 704: the UE compares the position information with the effective area information of the interested MBMS service; if the UE is in the effective area of the MBMS service, step 705 is skipped; otherwise, returning to step 702;

specifically, the location information of the UE itself is derived from one or more of the following information: cell identification information (CellID) of a current cell of the UE is acquired by the UE according to the system information, eNB identification information (eNBID) of the current eNB of the UE is acquired by the UE according to the system information, TAC information of the current cell of the UE is acquired by the UE according to the system information, and longitude and latitude information is acquired by the UE according to a self-positioning device (such as a GPS);

the specific comparison process is as follows:

when the UE location information (CellID) is located in the valid area (the valid area information is CellID or CellID group), it is determined that the UE is within the valid range; or,

when the UE position information (eNBID) is located in the effective area (the effective area information is eNBID or eNBID group), the UE is judged to be in the effective range; or,

when the UE position information (TAC) is located in the effective area (the effective area information is the TAC or the TAC group), the UE is judged to be in the effective range; or,

when the UE position information (longitude and latitude) is located in the effective area (longitude and latitude and radius information), the UE is judged to be in the effective range;

specifically, returning to step 702, indicating that the UE will continue to read the MCCH;

step 705: UE receives interested MBMS service;

step 706: the UE receives notification information;

step 707: and the UE is triggered by the notification information to receive the MBMS service.

It can be seen that, from step 702, > step 703, > step 704, > step 702, a loop may be maintained, that is, in this patent, the UE enters the mbms waiting state; the UE cyclically reads the MCCH information (step 702) and determines whether the UE is located in an active area (step 704).

Example two

The flow of the second embodiment of the MBMS service transmission method of the present invention is shown in fig. 8, and includes:

step 801 to step 803: similar to the above steps 701 to 703, detailed description thereof is omitted.

Step 804: the UE compares the position information with the effective area information of the interested MBMS service; if the UE is in the effective area of the MBMS service, jumping to step 805; otherwise, jumping to step 808;

the specific comparison process is as follows:

specifically, step 808 is skipped to indicate that the UE reads the MCCH after waiting for time T; further, the UE reading the MCCH again means that the UE reads the MCCH information at the latest MCCH repetition period or MCCH modification period;

step 805 to step 807: similar to the above steps 705 to 707, the description is omitted here.

Step 808: the UE waits for a time T and then jumps to step 802.

It can be seen that, from step 802 ═ step 803 ═ step 804 ═ step 808 ═ step 802, a loop may be maintained, i.e. in this patent, the UE enters the mbms waiting state; the UE periodically reads the MCCH information (step 802) and judges whether the UE is located in an effective area (step 804);

if the waiting time in step 808 is set to be short, the limit case T is considered to be 0 here (which is equivalent to that step 808 is not included, and step 802 is directly proceeded to after step 804 is completed, that is, the first embodiment is described above). The time required for the UE to complete such a loop at this time is often only tens of milliseconds; considering that the interval between MCCH transmissions is a minimum repetition period (minimum 320ms, maximum 2570ms), that is, the UE may complete one cycle at 2570ms or 2.56 s; for most UEs, the MCCH information is read once in 2.56s too frequently, i.e. the time interval is too short; the possibility that the MCCH information is changed in such a short time is not great; for step 804, most UEs moving at a low speed do not move a large position within an interval of 2.56s, that is, the determination result of step 804 is the same as the determination result of step 804 in a cycle (since the effective area does not change, the UE position does not change much);

in view of the above, if the waiting time is set too small in step 808, the UE may receive the MCCH information too frequently and get into multiple unnecessary cycles, resulting in power consumption of the UE.

In view of the above considerations, waiting for the reasonable setting of the time T in step 808 between step 804 and step 802 can avoid that the UE reads the MCCH information too frequently and gets into multiple unnecessary cycles; after completing step 804, the UE jumps to step 808, waits for a suitable time T, and then jumps to step 802;

the time T has two modes: the UE automatically generates the time T, for example, the value of the time T is automatically adjusted by the UE according to the self movement speed or the electric quantity condition; or the network side configures time T for the UE, and the UE is applied according to the configuration of the network side; further, considering that the MCCH information transmission follows a repetition period and a modification period, the value of the time T is preferably an integer multiple of the repetition period or an integer multiple of the modification period.

By periodically reading the MCCH information, the UE continuously updates the MCCH information, so that:

1, UE obtains accurate MBMS effective area information (the MBMS effective area information can be changed at any time);

2. when the MBMS service sessionstop of interest (i.e. the MBMS service ends), the procedure may jump to step 806 and step 807 as soon as possible.

Further, by waiting for the time T, the period and/or frequency for reading the MCCH information may be adjusted, so as to avoid that the UE reads the MCCH information too frequently and performs the determination process (step 803 and step 804), which may cause power consumption of the UE.

Preferred embodiment 1

In an MBSFN area, the UE selects an MBMS service (MBMS service1 is taken as an example in this embodiment) that the UE is interested in; at this time, the location information of the UE itself is CellID information (CellID 1 is taken as an example in the present embodiment); after the UE selects the MBMS service which is interested in the UE, the MCCH information is read for the first time, and whether the MBMS service which is interested in the UE is transmitted or not is judged through the acquired MCCH information.

If the MBMS service is being transmitted, the UE acquires the effective area of the MBMS service through the acquired MCCH information, and in this embodiment, the effective area information is taken as a set of CellID information, { CellID2, CellID3, CellID4, and CellID5 }; the UE compares the position information with the effective area information of the MBMS service according to the position information of the UE, and the current position information of the UE is not in the effective area; therefore, the UE will not receive the MBMS service (MTCH), receive the MCCH information again, and read the MCCH information at the latest MCCH repetition period or MCCH modification period; the UE is in the MBMSwaiting state at this time.

Further, before the UE receives the MCCH information again, the UE starts the UE-side timer, delays T (4 modification period lengths), and then receives the MCCH information again.

Preferred embodiment 2

In an MBSFN area, the UE selects an MBMS service group (in this embodiment, MBSFNareaID is taken as an example) that the UE is interested in; that is, it means that the UE is interested in all MBMS services in the MBSFNarea, for example, all services carried by the MBSFNarea are related to traffic information; at this time, the location information of the UE itself is latitude and longitude information (in this embodiment, the latitude and longitude acquired by the GPS is taken as an example); after selecting the MBMS service group in which the UE is interested, the UE reads the MCCH information for the first time, and knows that the MBMS service in the service group in which the UE is interested is being transmitted through the MCCH information, where MBMSservice1 and MBMSservice2 are taken as examples in this embodiment;

further, the UE acquires the valid region information of each of the MBMSservice1 and MBMSservice2 through the acquired MCCH information, and this embodiment takes the valid region information of MBMSservice1 as { GPS1, radius 1} and the valid region information of MBMSservice2 as { GPS2, radius 2} as examples; comparing the UE with the effective area information of the MBMS service according to the position information of the UE, wherein the UE is not in the effective area of the MBMSservice1, and the UE is in the effective area of the MBMSservice 2; therefore, the UE reads the traffic of mbms service2 (MTCH2), and for mbms service1, the UE reads the MCCH information again at the next MCCH repetition period or modification period; for MBMSservice1, the UE is in MBMSwaiting state, and for MBMSservice2, the UE is in MBMSactive state.

Further, before receiving the MCCH information again, the UE starts the UE-side timer, delays T (5 seconds), and then receives the MCCH information again.

According to an embodiment of the present invention, there is provided a UE, as shown in fig. 9, including: the control information receiving module 2 and the service information receiving module 4, and the above results are described in detail below.

A control information receiving module 2, configured to receive multicast control channel MCCH information; and a service information receiving module 4, connected to the control information receiving module 2, for receiving the MBMS service or entering an MBMS waiting state according to the effective area information of the MBMS service and the location information provided by the UE itself, which are included in the MCCH information received by the control information receiving module 2.

Preferably, as shown in fig. 10, the UE may further include the following structure:

the service information receiving module 4 includes: a decision sub-module 42, a receive sub-module 44, a processing sub-module 46, wherein,

a judging submodule 42, configured to judge whether effective area information of the MBMS service included in the MCCH information matches position information provided by the UE itself;

a receiving submodule 44, connected to the judging submodule 42, for receiving the MBMS service in case that the judging result of the judging submodule 42 is a coincidence;

and a processing sub-module 46, connected to the determining sub-module 42, for entering the MBMS waiting state if the determination result of the determining sub-module 42 is not met.

Wherein, the processing submodule 46 includes: a notification unit, configured to notify the control information receiving module 2 to continue receiving the MCCH information; a discarding unit, configured to discard receiving the MBMS service if the determination result of the determining sub-module 42 is still negative until the service is ended.

Specifically, in the case where the determination result of the determination sub-module 42 is non-compliant, the processing sub-module 46 enters the MBMS waiting state. The notification unit notifies the control information receiving module 2 to continue receiving the MCCH information; the judging submodule 42 judges whether the effective area information of the MBMS service contained in the MCCH information that the control information receiving module 2 continues to receive matches the location information provided by the UE itself, and the receiving submodule 44 receives the MBMS service if the judgment result of the judging submodule 42 is that it matches; when the judgment result of the judgment sub-module 42 is not in conformity, the processing sub-module 46 maintains the MBMS waiting state; and when the service is ended and the judgment result is still negative, giving up receiving the MBMS service.

Further, the determining sub-module 42 may further include: a first decision sub-module 422 and a second decision sub-module 424, wherein,

a first judging sub-module 422, configured to judge whether the UE position corresponding to the position information is located in an effective area corresponding to the MBMS service effective area information;

the second determining sub-module 424 is configured to determine whether the UE position corresponding to the position information overlaps with an effective area corresponding to the MBMS effective area information.

The following describes in detail the implementation process of receiving the MBMS service by the UE through an embodiment. First, a control information receiving module 2 receives control information of an MBMS service group in which a UE is interested in an MBSFN area (in this embodiment, an MBSFNareaID is taken as an example), where location information of the UE itself is latitude and longitude information (in this embodiment, latitude and longitude acquired by a GPS is taken as an example); judging whether the MBSFNareaID information and the longitude and latitude information of the UE per se are in accordance by a judging submodule 42 in the service information receiving module 4, and if so, receiving the MBMS which is interested by the UE by a receiving submodule 44 in the service information receiving module 4; if not, the notification sub-module 46 in the control information receiving module 4 periodically receives the control information of the MBMS service group, specifically, receives the control information of the MBMS service group after waiting for a proper time T according to the service type in each period, and determines whether the MBSFNareaID information and the longitude and latitude information of the UE itself are in accordance with each other until the service is ended.

By adopting the method for receiving the MBMS by the UE according to the effective area information of the MBMS contained in the MCCH information and the position information provided by the UE, the embodiment of the invention solves the problem that the UE power consumption is increased when the UE receives the MBMS in the related technology, thereby reducing the power consumption of the UE.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for receiving multimedia broadcast and multicast service MBMS service by user equipment UE is characterized by comprising the following steps:

UE receives multicast control channel MCCH information;

the UE receives the MBMS or enters an MBMS waiting state according to the effective area information of the MBMS contained in the MCCH information and the position information provided by the UE; the MBMS waiting state refers to a state in which the MCCH information is periodically received.

2. The method of claim 1, wherein the step of receiving the MBMS service or entering the MBMS waiting state according to the valid area information of the MBMS service included in the MCCH information and the location information provided by the UE itself comprises:

judging whether the effective area information of the MBMS contained in the MCCH information accords with the position information provided by the UE;

if the judgment result is yes, the UE receives the MBMS service;

and if the judgment result is negative, the UE enters an MBMS waiting state.

3. The method of claim 2, the step of the UE entering the MBMS waiting state comprising:

the UE continues to receive the MCCH information and judges whether the MBMS service effective area information contained in the received MCCH information accords with the position information provided by the UE,

if the judgment result is yes, the UE receives the MBMS service;

if the judgment result is negative, the UE maintains the MBMS waiting state; and when the service is ended and the judgment result is still negative, giving up receiving the MBMS service.

4. A method according to claim 2 or 3, characterized by: the step of judging whether the effective area information of the MBMS service contained in the MCCH information conforms to the location information provided by the UE itself includes one of the following:

judging whether the position of the UE corresponding to the position information is in an effective area corresponding to the MBMS effective area information;

and judging whether the position of the UE corresponding to the position information is overlapped with the effective area corresponding to the MBMS effective area information.

5. The method of claim 3, wherein the UE continuing to receive MCCH information comprises:

and the UE receives the MCCH information every predetermined time period.

6. The method of claim 5, wherein the predetermined time period is the UE configuration or a network side configuration.

7. The method of claim 5, wherein the predetermined period of time is an integer multiple of an MCCH modification period or an MCCH repetition period.

8. The method of any one of claims 1 to 3, 5 to 7, wherein:

the effective area information includes at least one of the following information: cell information sent by the MBMS, base station eNB information sent by the MBMS, tracking area information sent by the MBMS and coordinate information sent by the MBMS;

the location information includes at least one of: the cell identification information of the current cell of the UE, the eNB identification information of the current eNB of the UE, the tracking area information of the current cell of the UE and the latitude and longitude information of the UE.

9. A User Equipment (UE), comprising:

the control information receiving module is used for receiving multicast control channel MCCH information;

a service information receiving module, configured to receive the MBMS service according to the effective area information of the MBMS service and the location information provided by the UE itself, which are included in the MCCH information received by the control information receiving module, or enter an MBMS waiting state; the MBMS waiting state refers to a state in which the MCCH information is periodically received.

10. The UE of claim 9, wherein the traffic information receiving module comprises:

a judging submodule, configured to judge whether effective area information of the MBMS service included in the MCCH information matches position information provided by the UE itself;

the receiving submodule is used for receiving the MBMS under the condition that the judgment result of the judging submodule is in accordance;

and the processing submodule is used for entering an MBMS waiting state under the condition that the judgment result of the judgment submodule is not in conformity.

11. The UE of claim 10, wherein the processing sub-module comprises:

a notification unit, configured to notify the control information receiving module to continue receiving the MCCH information;

and a discarding unit, configured to discard receiving the MBMS service if the determination result of the determining sub-module is still negative until the service is ended.

12. The UE of claim 10, wherein the determining sub-module comprises:

the first judging submodule is used for judging whether the position of the UE corresponding to the position information is positioned in an effective area corresponding to the MBMS effective area information;

and the second judging submodule is used for judging whether the position of the UE corresponding to the position information is overlapped with an effective area corresponding to the MBMS effective area information.