WO2011157103A1

WO2011157103A1 - Method and system for indicating valid area of broadcast service

Info

Publication number: WO2011157103A1
Application number: PCT/CN2011/074643
Authority: WO
Inventors: 毛磊; 马子江; 艾建勋
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-06-17
Filing date: 2011-05-25
Publication date: 2011-12-22
Also published as: CN102291678A

Abstract

A method for indicating a valid area of a broadcast service is disclosed by the present invention, which includes that: for a Multimedia Broadcast Multicast Service (MBMS), the network side sends configuration information of the MBMS through an air interface; wherein location information for indicating the MBMS valid is added in the configuration information. A system for indicating a valid area of a broadcast service is disclosed by the present invention at the same time, which includes that: for the MBMS, a transmission unit is used for sending configuration information of the MBMS through an air interface; wherein location information for indicating the MBMS valid is added in the configuration information. The present invention satisfies the transmission requirements of operation providers for given area services, and can help a User Equipment (UE) to shield services need not to be received and reduce power waste.

Description

Method and system for indicating effective area of broadcast service

The present invention relates to a MBMS service transmission technology in a Multimedia Broadcast Multicast Service (MBMS) system, and more particularly to a method and system for indicating a broadcast service effective area in a multimedia broadcast multicast service system. Background technique

With the rapid development of the Internet and the popularity of large-screen multi-function mobile terminals, a large number of mobile data multimedia services and various high-bandwidth multimedia services, such as video conferencing, television broadcasting, video on demand, advertising, online education, interactive games, etc., have emerged. This aspect meets the needs of mobile users for multiple services, and also brings new business growth points for mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time. Compared with general data services, they have the characteristics of large data volume, long duration, and delay sensitivity.

In order to effectively utilize mobile network resources, the 3rd Generation Partnership Project (3GPP) proposes an MBMS service, which is a technology for transmitting data from one data source to multiple target mobile terminals. The sharing of resources (including core network and access network) improves the utilization of network resources, especially air interface resources. MBMS defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile The trend of data development provides a better business prospect for the development of third-generation (3G, 3rd Generation) communications.

In 3GPP Release 9, a single-frequency network (MBSFN, Multimedia Broadcast multicast service Single Frequency Network) transmission mode is designed to transmit MBMS services. MBSFN transmission mode is the same by synchronous transmission on the same physical resource of multiple co-frequency cells The signal (MBMS control signaling and service data) is such that the user equipment (UE, User Equipment) receiving the MBMS service receives the enhanced signals after the multiple cells are superimposed to improve the signal reception quality of the UE.

In the current MBMS system, one cell can belong to eight MBSFN areas, and each MBSFN area includes several cells, and carries a specific MBMS service. The broadcast area of these services is called a service area (SA, Service Area), and generally an SA It corresponds to an MBSFN area.

In order to improve the service reception quality of the UE and simplify the configuration on the network side, the size of the MBSFN area is statically configured and includes multiple cells, that is, the coverage of an MBSFN area is relatively large.

In recent years, operators are faced with new demands: certain services broadcast in the entire MBSFN area, such as sudden traffic information, local news, etc., the effective area of the content is relatively small (the effective area is smaller than the MBSFN area), Users who are not in the active area are not required to receive. The UE needs to be notified in a manner that the UE not shields the service that does not need to be concerned, and avoids disturbing the user.

According to this requirement, the simplest method is to set a new SA for such a service, the SA only includes the effective area of its content, and configure a new MBSFN area to match the SA, and then in the newly configured MBSFN area. Broadcast this business. For users who are not in the SA range (and not in the newly configured MBSFN area), the services in the SA are naturally not received.

However, because the location of the sudden traffic accident is relatively random, if the traffic accident information needs to be broadcast in time, setting up a new SA/MBSFN needs to initiate a series of signaling processes, which will cause frequent updates of the network side configuration, which undoubtedly increases the network side. The expenditure of signaling resources; and the constant setting of new SA/MBSFN may exceed the maximum number of MBSFN areas supported by the network. Summary of the invention

In view of this, the main object of the present invention is to provide an indication of an effective area of a broadcast service. The method and system can assist a UE that is not in a specific MBMS service receiving area to avoid receiving MBMS services related to the area, so that the UE can save power and avoid interference.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for indicating a valid area of a broadcast service, comprising:

The network side sends the configuration information of the MBMS service through the air interface for the MBMS service, where the location information indicating that the MBMS service is valid is added to the configuration information.

Preferably, the method further includes:

The user equipment UE monitors the configuration information of the MBMS service, and determines whether to receive the MBMS service according to the location information.

Preferably, the configuration information of sending the MBMS service by using an air interface is:

The network side transmits the predetermined location information to the MCE or the service server by using the service initiation signaling or the service update signaling, where the MCE or the service server configures the location information to the base station, where the base station The location information is added to the configuration information of the MBMS service, and the configuration information of the MBMS service is sent by air interface signaling.

Preferably, the configuration information of the MBMS service is carried in the MBMS control channel MCCH; or is carried in a specific time slot of the multicast service channel MTCH.

Preferably, the position information includes one or more center coordinates, and radius or diameter information; or center coordinates including one or more rectangles, squares or parallelograms, and side length information;

Determining, according to the location information, whether to receive the MBMS service is:

Determining, by the UE, the current location information of the UE, and further determining whether it is located in the area determined by the center coordinates and the corresponding radius or diameter; or determining whether the self is located in the center coordinate and the rectangle and square determined by the side length Or in the parallelogram area; receiving the MBMS service when located in the determined area, and not receiving the MBMS service.

Preferably, the UE has its own positioning function; the positioning function is the following positioning function. At least one: GPS GPS positioning, Galileo positioning, global satellite navigation system GLONASS positioning, satellite-based augmentation system SBAS positioning, quasi-zenith satellite system QZSS positioning and other positioning methods.

Or the location information includes one or more cell identification information or tracking area identification information;

Determining, by the UE, the cell identifier or the tracking area identifier that is currently located, and comparing the cell identifier or the tracking area identifier of the location information, where the location information has a cell or tracking area that matches the identifier, the receiving station The MBMS service is described, otherwise the MBMS service is not received.

Preferably, the location information is updated by a service update process during a service transmission process. A system for indicating a valid area of a broadcast service, comprising: a sending unit, configured to send configuration information of the MBMS service by using an air interface for the MBMS service, where the location information indicating that the MBMS service is valid is added to the configuration information.

Preferably, the system further includes a monitoring unit and a determining unit; wherein

a monitoring unit, configured to monitor configuration information of the MBMS service;

And a determining unit, configured to determine, according to the location information, whether to receive the MBMS service. Preferably, the sending unit is configured in the base station; the network side transmits the predetermined location information to the MCE or the service server by using service initiation signaling or service update signaling, where

The MCE or the service server configures the location information to the base station, and the sending unit further adds the location information to the configuration information of the MBMS service, and sends the configuration information of the MBMS service by air interface signaling.

Preferably, the configuration information of the MBMS service is carried in the MBMS control channel MCCH; or is carried in a specific time slot of the multicast service channel MTCH;

The listening unit further monitors a specific time slot of the MCCH or the MTCH to obtain the

Configuration information of the MBMS service. Preferably, the location information includes one or more center coordinates, and radius or diameter information;

The determining unit further determines the current location information of the UE, and further determines whether the UE is located in the area determined by the radius or diameter of the center of the circle, and triggers the UE to receive the MBMS service, and triggers the UE not to receive the MBMS. business.

Or the location information includes one or more cell identifier information or tracking area identifier information; the determining unit further determining a cell identifier or a tracking area identifier that the UE is currently located, and the cell identifier or the tracking area identifier of the location information Corresponding to the comparison, when there is a cell or a tracking area that identifies the matching in the location information, the UE is triggered to receive the MBMS service, otherwise the UE is not triggered to receive the MBMS service.

In the present invention, when the network side determines to transmit the MBMS service, according to the characteristics of the MBMS service or according to the service receiving area set by the operator for the MBMS service to be transmitted, the effective area information of the service is carried in the MBMS service to be sent. In the configuration information, the UE can determine whether to receive the MBMS service by directly determining whether the MBMS service is located in the configuration information of the MBMS service. The invention satisfies the transmission requirement of the operator for a specific area service, and can help the UE to shield the service that does not need to be received, thereby reducing power consumption. Compared with the method for configuring a new SA, the present invention avoids frequent SA/MBSFN area update and configuration, and the amount of effective area information data transmitted through the air interface is not large, and can be adapted to the transmission requirements of sudden MBMS services such as traffic accidents. . DRAWINGS

Figure 1 is a schematic diagram of the MBSFN area;

2 is a flowchart of Embodiment 1 of a method for indicating a valid area of a broadcast service according to the present invention; FIG. 3 is a flowchart of Embodiment 2 of a method for indicating a valid area of a broadcast service according to the present invention; Schematic diagram of the composition of the first embodiment; FIG. 5 is a schematic structural diagram of a second embodiment of a system for indicating a valid area of a broadcast service according to the present invention. detailed description

The basic idea of the present invention is: when the network side sends the MBMS service, according to the characteristics of the MBMS service or according to the service receiving area set by the operator for the MBMS service to be sent, the effective area information of the service is carried in the MBMS to be sent. In the configuration information of the service, the UE can determine whether to receive the MBMS service according to whether it is located in the configuration information of the MBMS service when receiving the MBMS service.

The present invention will be further described in detail below with reference to the accompanying drawings.

The invention will now be described in detail in conjunction with the drawings and embodiments.

1 is a schematic diagram of an MBSFN area. As shown in FIG. 1, an MBSFN area is composed of a plurality of cells. For simplicity of description, only one base station is shown in the figure; wherein, the broadcast service covers the entire MBSFN area. Service 1 is a school-wide information broadcast, and its effective area is only within the school scope. However, users in the MBSFN area who are not in the school can also receive the information of the service 1, but the service 1 information is not available. These users in the school are useless, and the monitoring service 1 may cause disturbances to users of these UEs, and cause unnecessary power consumption of the UE.

Taking the business 2 as an example, the business 2 is a promotional information of a shopping mall, and its effective range is a circular range (a shopping mall area) with a center of (X, y) and a radius of Z. The service content is valid only in the effective area, and it is meaningless for the user outside the effective area to receive the service 2. For example, each mall under the same company is promoted. For one of the malls, the users in the business area are closest to the mall, and the users outside the business area are users closer to other malls. For users in the active area, the promotional information may only be useful within the determined effective area of the business, and the likelihood of interest in other areas is not very high. When the network side is ready to send a certain broadcast service, it is on the core network side, such as a broadcast multicast service center.

The BM-SC (Broadcast-Multicast Service Centre) configures the effective area information of the service, and the effective area information is an area that the UE can determine and identify.

The BM-SC initiates a session initiation signaling for an MBMS service according to the existing procedure, and adds the MBMS Service Area information to the signaling; the session start signaling is sent by the Mobile Management Entity (MME) The MCE (Multicast Coordination Entity), after receiving the session start signaling, the MCE determines the sending area of the MBMS service according to the value of the MBMS Service Area configured therein, and includes the service configuration information (including The valid area information is transmitted to all eNBs in the transmission area corresponding to the service.

The eNB updates the MBMS control channel (MCCH, MBMS Control Channel) according to the service configuration information provided by the MCE, and adds the configuration information of the service to the MCCH, including the service identifier of the service, and the corresponding multicast traffic channel (MTCH, Multicast Traffic Channel). Parameters such as configuration information and effective area information of the service.

The UE receives the updated MCCH information according to the existing receiving manner, and includes configuration information of the new service and valid area information of the service.

Further, the UE may also be based on other positioning technologies, such as Global Positioning System (GPS), Satellite Based Augmentation System (SBAS), Quasi Zenith Satellite System (QZSS, Quasi Zenith Satellite System). And the positioning technology such as the Galileo system determines the current location of the UE, and then determines whether the UE is currently in the service configuration effective area to determine whether to receive the service.

Embodiment 1

FIG. 2 is a flowchart of Embodiment 1 of a method for indicating a valid area of a broadcast service according to the present invention. As shown in FIG. 2, the method for indicating a valid area of a broadcast service includes the following steps:

Step 201: The network side configures a location information of the service on the MCCH for an MBMS service. Interest.

The network side prepares to send the broadcast service 1 in the MBSFN area. The object to receive the service is a teacher and student in the school. It is not necessary for the user outside the school to receive the service. In order not to disturb the users outside the school, a service needs to be configured for the service. Effective area information (that is, location information of the above services).

The network side configures the effective area information of the service in the BM-SC or other network element, such as a service server, where the effective area information is an area that the UE can determine and identify, and may be an area i or a combination of multiple areas. .

The location information of the foregoing service may also be expressed as {event 1 , location information}, {event 2, location information}, .... {event n, location information} for different events carried in the service.

The above-mentioned business effective area information may be geographic coordinate information such as a center coordinate (X, y) and an effective area radius r or diameter d information relative to the coordinate point; these two pieces of information may determine a circular area. The active area of the service may contain one or more of said circular areas.

The service effective area information may also be one or more cell identifier (cell lD) information, and the cell corresponding to the cell identifiers constitutes an effective area of the configured service.

It may also be one or more tracking area (TA, Tracking Area) IDs, and the UE may determine a specific effective area of the configured service according to some or some TA IDs, that is, determine a geographical area range corresponding to the configured service.

The BM-SC initiates session initiation and other signaling for the MBMS service according to the existing procedure, and the MBMS Service Area information of the configured service is added in the signaling; the session start signaling is sent to the MCE through the MME, and the MCE receives the session. After the signaling is started, the transmission area of the MBMS service is determined according to the value of the configured MBMS Service Area, and the service configuration information (including the effective area information) is sent to all the eNBs in the transmission area corresponding to the service. .

The eNB updates the MCCH according to the information provided by the MCE, and adds configuration information of the service, including the service identifier of the service, the corresponding MTCH configuration information, and the effective area information of the service. Wait.

Step 202: The UE monitors and reads the MCCH. If there is location information in the corresponding service configuration information in the MCCH, it is determined whether it is located in the valid area, and it is determined whether the MTCH carrying the service data needs to be read.

For the configuration that the effective area information is configured as a center coordinate point plus a radius or a diameter, the UE will determine the current location coordinates according to the positioning function configured by itself, such as GPS; the UE further determines the current location and the service. Whether the distance between the configured center point of the circle is greater than the radius of the effective area of the service, to determine whether it is in the MBMS Service Area, thereby determining whether to receive the service. When the configuration parameter in the service area information is a diameter, the determination mode is similar to the radius mode, and the distance between the UE and the center of the circle is calculated according to the current position information and the center coordinates configured in the service area information, and is equal to the configured diameter. When comparing, when it is greater than, it is outside the effective area of the service.

It should be understood by those skilled in the art that the above effective area can also be characterized in other ways. For example, the effective area can be determined by the center coordinates of one or more rectangles, squares or parallelograms, and the side length information; The UE determines whether it is located in the rectangular, square or parallelogram area determined by the center coordinate and the side length according to a positioning function configured by itself, such as a positioning function such as GPS; and receives the MBMS service when located in the determined area, Otherwise, the MBMS service is not received.

For the case where the effective area information is configured as a Cell ID list, the UE determines whether the service matches the one of the Cell ID lists in the valid area information according to the identifier of the cell in which the UE is located.

For the case where the effective area information is configured as the TA ID list, the UE determines whether the identifier has one of the TA ID lists in the valid area information according to the identifier of the TA in which the UE is located. The items match to determine whether to receive the service.

Embodiment 2

As an alternative, the above service effective area information can also be carried in the MTCH. The implementation details are described in detail below.

FIG. 3 is a flowchart of Embodiment 2 of a method for indicating a valid area of a broadcast service according to the present invention. As shown in FIG. 3, the method for indicating a valid area of a broadcast service includes the following steps:

Step 301: The network side configures the location information of the service on the MTCH for an MBMS service.

The network side configures the effective area information (that is, the location information of the service) of the service in the BM-SC or another network element, such as a service server, where the effective area information is an area that the UE can determine and identify, and may be a combination of multiple areas. form.

The above location information may also be expressed as {event 1 , location information}, {event 2, location information}, .... {event n, location information} for different events carried in the service. The above events correspond to the business.

The above-mentioned business effective area information may be geographic coordinate information such as a center coordinate (X, y) and an effective area radius r or diameter d information relative to the coordinate point; these two pieces of information may determine a circular area. The active area of the service may contain one or more of said circular areas. The effective area may also be determined by one or more central coordinates of a rectangle, a square or a parallelogram, and side length information.

The service effective area information may also be one or more cell IDs, and the / these cells form a geographical area.

It may also be one or more TA IDs, and the UE knows in advance the geographical area range corresponding to a certain TA ID.

The BM-SC initiates session initiation and other signaling for the MBMS service according to the existing procedure, and the effective area information of the service is added in the signaling; the session start signaling is sent to the MCE through the MME, and the MCE is connected. After receiving the session start signaling, the device determines the sending area of the MBMS service according to the specific value of the configured MBMS service area, and sends the service configuration information (including the valid area information) to the sending area corresponding to the service. All eNBs in .

The eNB updates the MCCH according to the service configuration information provided by the MCE, and adds configuration information of the service, including the service identifier of the service, and the corresponding MTCH configuration information.

When the eNB officially transmits the MTCH corresponding to the service, the eNB inserts the valid location information of the service at a specific location of the MTCH according to a certain period.

Step 302: The UE monitors and reads the MTCH. If the valid location information of the service is inserted at a specific location in the MTCH, it is determined whether the MTCH is located in the valid area of the MBMS service according to the location information, to determine whether to continue reading the MTCH.

In this example, after the service configuration information is carried in a specific location in the MTCH, the specific location information that carries the service configuration information is notified or configured in the UE, and the UE can only receive the service configuration information by listening to the specific location of the MTCH. It is determined whether the service needs to be received, so as to achieve the purpose of saving power of the UE.

For the manner that the effective area information is configured as a coordinate point plus a radius or a diameter, the UE can know the current location coordinates according to the positioning function configured by itself, such as GPS, and the UE determines the current location and the coordinates of the service configuration. Whether the distance between the points is greater than the effective area radius of the service determines whether the service is received.

For the case where the effective area information is configured as the Cell ID list, the UE knows the identity of the cell in which it is located, and determines whether the identifier matches one of the Cell ID lists in the effective area information to determine whether to receive the service.

For the case where the effective area information is configured as the TA ID list, the UE knows in advance the identity of the TA in which it is located, and determines whether the identifier matches one of the TA ID lists in the effective area information to determine whether to receive the service.

Embodiment 3 This example relates to the configuration on the UE side, and the switch of the MBMS service reception mode is set on the UE side. If the user is interested in all services, the above process of determining whether the user is in the valid area can be closed, so that the user can receive all the services.

There may be modifications and updates to the configuration parameters of the service during the service transmission.

The network side will use the session update process to perform the update of the service configuration parameters. Correspondingly, the configuration parameters of the services updated on the MCCH or MTCH are also updated accordingly. If the service effective area information changes, the UE determines whether to receive the service according to the updated valid area information. The session update process is similar to the session start process except that it targets different objects. The session start process is for the configuration of the MBMS service to be performed, and the session update process is for the configuration of the ongoing MBMS service.

4 is a schematic structural diagram of a first embodiment of a system for indicating a valid area of a broadcast service according to the present invention. As shown in FIG. 4, the system for indicating a valid area of a broadcast service includes a sending unit 41, where

The sending unit 41 is configured to send configuration information of the MBMS service by using an air interface for a certain MBMS service, where the MBMS service is an MBMS service to be sent or an MBMS service that is being sent, where an indication is added to the configuration information. The location information of the MBMS service is valid.

The sending unit 41 is specifically configured in the base station; the network side transmits the predetermined location information to the MCE or the service server by using the service initiation signaling or the service update signaling, where the MCE or the service server sends the location information. The sending unit 41 further adds the location information to the configuration information of the MBMS service, and sends the configuration information of the MBMS service by air interface signaling.

FIG. 5 is a schematic structural diagram of a system for indicating a valid area of a broadcast service according to the present invention. As shown in FIG. 5, on the basis of the system shown in FIG. 4, the system for indicating a valid area of a broadcast service further includes a monitoring unit 42 and a determining unit. 43; Among them, The monitoring unit 42 is configured to monitor configuration information of the MBMS service.

The determining unit 43 is configured to determine, according to the location information, whether to receive the MBMS service. The configuration information of the MBMS service is specifically carried in the MBMS control channel MCCH; or is carried in a specific time slot of the multicast service channel MTCH;

The listening unit further monitors a specific time slot of the MCCH or MTCH to obtain configuration information of the MBMS service.

The above location information includes center coordinates, and radius or diameter information;

The determining unit 43 further determines the current location information of the UE, and further determines whether the UE is located in the area determined by the radius or the diameter of the center of the circle, and triggers the UE to receive the MBMS service, and does not trigger the UE to receive the MBMS. business.

The location information includes one or more central coordinates of a rectangle, a square or a parallelogram, and side length information; at this time, the determining unit 43 further determines the current location information of the UE, and further determines whether the UE is located in the central coordinate and Within the rectangular, square, or parallelogram area determined by the side length; when the determined area is located, the UE is triggered to receive the MBMS service, and the UE is not triggered to receive the MBMS service.

Or the foregoing location information includes one or more cell identifier information or tracking area identifier information. The determining unit 43 further determines a cell identifier or a tracking area identifier that the UE is currently located, and corresponds to the cell identifier or the tracking area identifier of the location information. The UE is triggered to receive the MBMS service when the cell or the tracking area with the identifier is matched in the location information, otherwise the UE is triggered not to receive the MBMS service.

It should be understood by those skilled in the art that the system for indicating the effective area of the broadcast service shown in FIG. 4 and FIG. 5 is designed to implement the foregoing method for indicating the effective area of the broadcast service, and the implementation functions of the foregoing processing units may refer to the foregoing. The descriptions of the methods of Embodiment 1 to Embodiment 3 indicating the effective area of the broadcast service are understood. The functions of the various processing units in the figures may be implemented by a program running on a processor or by a specific logic circuit. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for indicating a valid area of a broadcast service, the method comprising: the network side transmitting the configuration information of the MBMS service through an air interface for the multimedia broadcast and the multicast MBMS service; wherein, in the configuration information Location information indicating that the MBMS service is valid is added.

The method according to claim 1, wherein the method further comprises: the user equipment UE listening to the configuration information of the MBMS service, and determining whether to receive the MBMS service according to the location information.

The method according to claim 1 or 2, wherein the transmitting the configuration information of the MBMS service through an air interface is:

The network side transmits the predetermined location information to the multimedia coordination entity MCE or the service server by using the service initiation signaling or the service update signaling, where the MCE or the service server configures the location information to the base station, where the base station The location information is added to the configuration information of the MBMS service, and the configuration information of the MBMS service is sent by air interface signaling.

The method according to claim 3, wherein the configuration information of the MBMS service is carried in the MBMS control channel MCCH; or is carried in a specific time slot of the multicast service channel MTCH.

5. The method according to claim 2, wherein the position information comprises one or more center coordinates, and radius or diameter information; or comprises one or more central coordinates of a rectangle, a square or a parallelogram. And side length information;

The method according to claim 5, wherein the UE has a self-positioning function; the positioning function is at least one of the following positioning functions: global positioning system GPS positioning, Galileo Galileo positioning, global satellite navigation system GLONASS positioning, satellite-based augmentation system SBAS positioning, quasi-zenith satellite system QZSS positioning and other positioning methods.

The method according to claim 2, wherein the location information includes one or more cell identification information or tracking area identification information;

8. The method according to claim 2, wherein the location information is updated by a service update procedure in a service transmission process.

A system for indicating a valid area of a broadcast service, wherein the system includes: a sending unit, configured to send, by using an air interface, configuration information of the MBMS service for an MBMS service, where the configuration information is added Indicates location information that the MBMS service is valid.

The system according to claim 9, wherein the system further comprises a monitoring unit and a determining unit;

And a determining unit, configured to determine, according to the location information, whether to receive the MBMS service.

The system according to claim 9 or 10, wherein the transmitting unit is configured in a base station; and the network side transmits the predetermined location information to the MCE through service initiation signaling or service update signaling. The service server, the MCE or the service server configures the location information to the base station, and the sending unit further adds the location information to the configuration information of the MBMS service, and sends the MBMS by air interface signaling. Business configuration letter Interest.

The system according to claim 11, wherein the configuration information of the MBMS service is carried in an MBMS control channel MCCH; or is carried in a specific time slot of a multicast service channel MTCH;

The intercepting unit further monitors a specific time slot of the MCCH or the MTCH to obtain configuration information of the MBMS service.

13. The system according to claim 9, wherein the position information includes one or more center coordinates, and radius or diameter information;

The system according to claim 9, wherein the location information includes one or more cell identification information or tracking area identification information;

The determining unit further determines a cell identifier or a tracking area identifier that the UE is currently located, and compares with the cell identifier or the tracking area identifier of the location information, where the location information has a cell or tracking area that matches the identifier, The UE is triggered to receive the MBMS service, otherwise the UE is not triggered to receive the MBMS service.