CN105850160A

CN105850160A - Method for keeping service continuity, base station and system

Info

Publication number: CN105850160A
Application number: CN201480035992.XA
Authority: CN
Inventors: 曹龙雨; 戴明增; 张艳平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-12-02
Filing date: 2014-12-02
Publication date: 2016-08-10
Also published as: WO2016086359A1

Abstract

The invention provides a method, base station and system for maintaining service continuity. The method includes: a first base station serving a first multicast broadcast single frequency network MBSFN area broadcasts a first multimedia broadcast multicast MBMS service to user equipment; the first base station receives an instruction sent by a second base station serving a second MBSFN area information, wherein the indication information is used to indicate that the service currently broadcast in the second MBSFN area is the first MBMS service; when the user equipment leaves the first MBSFN area, the first base station according to the The indication information switches the user equipment from the base station in the current MBSFN area to the second MBSFN area, so that the user equipment receives the first MBMS service in the second MBSFN area. The method provided by the embodiment of the present invention enables the UE to continuously receive the MBMS service during the moving process, thereby ensuring the continuity of the service.

Description

Keep method, base station and the system of business continuity

Technical field

The present invention relates to the communication technology, more particularly to a kind of method, base station and the system of holding business continuity.

Background technology

With continuing to develop for the communication technology, user requires more and more higher to the continuity of communication service.In multimedia broadcast multicast (Multimedia Broadcast/Multicast Service, hereinafter referred to as MBMS) service broadcast scene in, in order to ensure that UE remains to receive MBMS in moving process, the continuity of MBMS is maintained, prior art employs following scheme：

Referring to Fig. 1, assuming that MBSFN regions 1 are served in base station 1, the system frequency in the MBSFN regions 1 is f1, its corresponding MBMS area mark (MBMS Service Area Identity, hereinafter referred to as SAI) it is SAI1, base station 2 and base station 3 are the adjacent base station of base station 1, and it serves MBSFN regions 2 and MBSFN regions 3 respectively, and the system frequency in MBSFN regions 2 and MBSFN regions 3 is respectively f2 and f3, UE is currently located in MBSFN regions 1 and provides service by base station 1.Base station 1 is in system information block (System Information Block, hereinafter referred to as SIB) the not only corresponding SAI1 in broadcast MBSFN region 1 and system frequency f1 in 15, it can also include in broadcast MBSFN region 2 and the corresponding SAI in MBSFN regions 3 and its system frequency, i.e. SIB15 simultaneously：SAI lists={ SAI1, SAI2, SAI3 }, list of frequency={ f1, f2, f3 }, and the SAI and corresponding relation of frequency={ SAI1--f1；SAI2--f2；SAI3--f3}.

When UE is not moved, UE receives the SIB15 message that base station 1 is broadcasted, and judge that the customer service oneself preserved describes (User Service Description, hereinafter referred to as USD) in UE corresponding SAI of MBMS interested (assuming that the corresponding SAI of business interested UE is SAI1 and SAI2, but optional UE understands the corresponding SAI in prioritizing selection current area, that is SAI1, how UE selects to realize depending on UE inside), if the SAI in the SAI lists broadcasted with SIB15 is matched and (can be included multiple SAI in USD).If it does, then UE determines that the corresponding system frequencies of SAI1 are f1 according to SAI in SIB15 and system frequency corresponding relation, and f1 carryings are sent to base station 1 in MBMS interest instruction message.Base station 1 is received after the f1 that UE is reported, and determines the corresponding SAI1 of the f1, that is, the base station for determining broadcast UE MBMSs interested is the base station 1 in MBSFN regions, then base station 1 on f1 broadcasting MBMS business；If UE judges that (i.e. current is that the base station 1 that UE is serviced does not broadcast UE MBMSs interested to oneself corresponding SAI of business interested in the USD preserved for SAI3, but in the MBMS of other base station broadcasts UE current interests), then the corresponding system frequency f3 of SAI3 are carried and are indicated to be sent to base station 1 in message in MBMS interest by UE according to above-mentioned deterministic process, determination f3 of base station 1 corresponding is SAI3, and the corresponding base stations 3 of SAI3, UE is then switched to base station 3 from base station 1, so that UE receives the MBMS that base station 3 is issued on f3.This method make it that before MBMS starts UE can select to receive in which frequency, because the MBMS for not resulting in UE is interrupted.

Fig. 1 is directed to the scene of the different MBMS of different MBSFN regional broadcasts, and the corresponding SAI of these MBSFN are also differed, but in actual scene, different MBSFN regions can also broadcast identical MBMS, and different MBSFN regions can correspond to identical SAI, for example in above-mentioned Fig. 1 MBSFN regions 1 and the corresponding SAI in MBSFN regions 2 are SAI1, and the first MBMS is just broadcasted in MBSFN regions 1 and MBSFN regions 2 on f1 and f2 respectively；Assuming that UE is current to receive the first MBMS that base station 1 is issued just on f1, when UE is moved to some position (assuming that the position is the position that base station 2 and base station 3 are collectively covered), due to signal attenuation or other reasonses, UE now f1 do not receive the first MBMS of the broadcast of base station 1 or receive the first MBMS of broadcast base station 1 signal intensity it is very weak (and now the first MBMS remains the business needed for UE), base station 1 can not know that oneself which adjacent base station is broadcasting the first MBMS, therefore UE can not be switched on correct Target cell, so as to cause UE the first MBMS to interrupt, when being broadcasted on the different base station of same MBMS, because the MBSFN regions for broadcasting the MBMS change, cause UE can not switch on correct Target cell, MBMS is caused to interrupt.

The content of the invention

The embodiment of the present invention provides a kind of method, base station and the system of holding business continuity, during solving to be broadcasted on the different base station of same MBMS in the prior art, because the MBSFN regions for broadcasting the MBMS change, cause UE can not switch on correct Target cell, so as to cause the technical problem that MBMS is interrupted.

In a first aspect, the embodiment of the present invention provides a kind of base station, including：

Sending module, for broadcasting the first multimedia broadcast multicast MBMS to user equipment；

Receiving module, for receiving the configured information that second base station in the 2nd MBSFN regions of service is sent, wherein, the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS；

Processing module, for when the user equipment leaves the first MBSFN regions, the user equipment is switched to by the 2nd MBSFN regions from the base station in current MBSFN regions according to the configured information, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

With reference to first aspect, in the first possible embodiment of first aspect, the processing module, it is additionally operable to before the user equipment is switched into the 2nd MBSFN regions from current MBSFN regions, the user equipment is switched to by the 2nd MBSFN regions according to configured information selection.

With reference to the first possible embodiment of first aspect or first aspect, in second of possible embodiment of first aspect, the receiving module, specifically for receiving the base station configuration updating request message that second base station is sent, the configured information is carried in the base station configuration updating request message, or, the X2 interface sent specifically for receiving second base station changes request message, the configured information is carried in the X2 interface modification request message, or, specifically for receiving the configured information that second base station is sent by network element device.

With reference to second of possible embodiment of first aspect, in the third possible embodiment of first aspect, if the network element device is multiple cell multicast coordination entity MCE, the receiving module, specifically for receiving the MBMS schedule informations that second base station is sent by the MCE；Wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the base station, and the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

With reference to second of possible embodiment of first aspect, in the 4th kind of possible embodiment of first aspect, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, the then receiving module, specifically for receiving the MBMS schedule informations that second base station is sent by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the base station, it is that the first MME is sent to the first MCE according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, and the configured information is set up for the 2nd MME M3 interfaces sent according to the 2nd MCE received and asked Message is sent to the first MME's, and the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Any one of the 4th kind of possible embodiment with reference to first aspect to first aspect, in the 5th kind of possible embodiment of first aspect, the configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, with the second system frequency of the mark of second base station or second base station.

With reference to the 5th kind of possible embodiment of first aspect, in the 6th kind of possible embodiment of first aspect, the configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, the processing module by the user equipment specifically for when the user equipment leaves the first MBSFN regions, second base station is switched to according to the configured information；Or,

When the configured information for the 2nd MBSFN regions current broadcast business business information and second base station second system frequency when, the processing module is specifically for when the user equipment leaves the first MBSFN regions, the target BS for being switched to the user equipment in the 2nd MBSFN regions according to the configuration information of the configured information and the first base station.

Second aspect, the embodiment of the present invention provides a kind of base station, and the base station services the second multicast broadcast single frequency network MBSFN regions, and the base station includes：

Sending module, for sending configured information to the first base station in first class services MBSFN regions；Wherein, the first base station is when preceding to user equipment broadcast the first multimedia broadcast multicast MBMS, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is the first MBMS.

With reference to second aspect, in the first possible embodiment of second aspect, the sending module, the configured information is carried specifically for being sent to the first base station in base station configuration updating request message, the base station configuration updating request message, or, specifically for sending X2 interface request message to the first base station, the configured information is carried in the X2 interface request message, or, specifically for sending configured information to the first base station by network element device.

With reference to the first possible embodiment of second aspect, in second of possible embodiment of second aspect, if network element device is multiple cell multicast coordination entity MCE, the sending module, specifically For sending MBMS schedule informations to the first base station by the MCE, wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to the base station received and are sent to the first base station；Wherein, the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

With reference to the first possible embodiment of second aspect, in the third possible embodiment of second aspect, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, the then sending module, specifically for sending MBMS schedule informations to the first base station by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of the base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Any one of the third possible embodiment with reference to second aspect to second aspect, in the 4th kind of possible embodiment of second aspect, the configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, with the second system frequency of the mark of the base station or the base station.

With reference to the 4th kind of possible embodiment of second aspect, in the 5th kind of possible embodiment of second aspect, the mark of the base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the base station is switched to by the user equipment；

The second system frequency of the base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the target BS that the user equipment is switched in the 2nd MBSFN regions.

The third aspect, the embodiment of the present invention provides a kind of method for keeping business continuity, including：

The first base station in first class services multicast broadcast single frequency network MBSFN regions broadcasts the first multimedia broadcast multicast MBMS to user equipment；

First base station receives the configured information that second base station in the 2nd MBSFN regions of service is sent, wherein, The business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS；

When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by the first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

With reference to the third aspect, in the first possible embodiment of the third aspect, the first base station also includes before the user equipment is switched into the 2nd MBSFN regions from the base station in current MBSFN regions according to the configured information, including：

The first base station selects the user equipment switching to the 2nd MBSFN regions according to the configured information.

With reference to the first possible embodiment of the third aspect or the third aspect, in second of possible embodiment of the third aspect, the first base station receives the configured information that second base station in the 2nd MBSFN regions of service is sent, including：

The first base station receives in the base station configuration updating request message that second base station is sent, the base station configuration updating request message and carries the configured information, or,

The first base station receives in the X2 interface modification request message that second base station is sent, the X2 interface modification request message and carries the configured information, or,

The first base station receives the configured information that second base station is sent by network element device.

With reference to second of possible embodiment of the third aspect, in the third possible embodiment of the third aspect, if the network element device is multiple cell multicast coordination entity MCE, then the first base station receives the configured information that second base station in the 2nd MBSFN regions of service is sent by network element device, including：

The first base station receives the MBMS schedule informations that second base station is sent by the MCE；Wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the first base station, and the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

With reference to second of possible embodiment of the third aspect, in the 4th kind of possible embodiment of the third aspect, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, then the first base station receives the configured information that second base station in the 2nd MBSFN regions of service is sent by network element device, including：

The first base station receives the MBMS schedule informations that second base station is sent by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Any one of the 4th kind of possible embodiment with reference to the third aspect to the third aspect, in the 5th kind of possible embodiment of the third aspect, the configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, with the second system frequency of the mark of second base station or second base station.

With reference to the 5th kind of possible embodiment of the third aspect, in the 6th kind of possible embodiment of the third aspect, the configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, the user equipment is switched to second base station by the first base station when the user equipment leaves the first MBSFN regions according to the configured information；Or,

When the configured information for the 2nd MBSFN regions current broadcast business business information and the 2nd MBSFN regions second system frequency when, the first base station is when the user equipment leaves the first MBSFN regions, the target BS for being switched to the user equipment in the 2nd MBSFN regions according to the configuration information of the configured information and the first base station.

Fourth aspect, the embodiment of the present invention provides a kind of method for keeping business continuance, including：

The second base station for servicing the second multicast broadcast single frequency network MBSFN regions sends configured information to the first base station in first class services MBSFN regions；Wherein, the first base station is when preceding to user equipment broadcast the first multimedia broadcast multicast MBMS, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is the first MBMS.

With reference to fourth aspect, in the first possible embodiment of fourth aspect, it is described service the second multicast broadcast single frequency network MBSFN regions the first base from the second base station to first class services MBSFN regions Stand and send configured information, including：

Second base station sends in base station configuration updating request message, the base station configuration updating request message to the first base station and carries the configured information, or,

Second base station sends in X2 interface request message, the X2 interface request message to the first base station and carries the configured information, or,

Second base station sends configured information by network element device to the first base station.

With reference to the first possible embodiment of fourth aspect, in second of possible embodiment of fourth aspect, if network element device is multiple cell multicast coordination entity MCE, second base station sends configured information by network element device to the first base station, including：

Second base station sends MBMS schedule informations by the MCE to the first base station, wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the first base station；Wherein, the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

With reference to the first possible embodiment of fourth aspect, in the third possible embodiment of fourth aspect, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, then second base station sends configured information by network element device to the first base station, including：

Second base station sends MBMS schedule informations by the first MCE to the first base station；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Any one of the third possible embodiment with reference to fourth aspect to fourth aspect, in the 4th kind of possible embodiment of fourth aspect, the configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, with the of, the mark of second base station or second base station Two system frequency.

With reference to the 4th kind of possible embodiment of fourth aspect, in the 5th kind of possible embodiment of fourth aspect, the mark of second base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the user equipment is switched into second base station；

The second system frequency of second base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the target BS that the user equipment is switched in the 2nd MBSFN regions.

5th aspect, the embodiment of the present invention provides a kind of system for keeping business continuance, including user equipment, also including the base station described in any one of first aspect to the 6th kind of possible embodiment of first aspect, and, the base station described in any one of the 5th kind of possible embodiment of second aspect to second aspect.

The method provided in an embodiment of the present invention for keeping business continuity, base station and system, the business for being used to indicate the second base station current broadcast that the transmission of the second base station is received by first base station is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN areas of first base station service, user equipment is switched to the second base station by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the second base station, so that UE can continuously receive MBMS in moving process, it ensure that the continuity of business.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 for the different MBMS of the MBSFN regional broadcasts different in the prior art that provide of the present invention schematic diagram of a scenario；

The schematic diagram of a scenario for the different MBSFN regional broadcast identical MBMSs that Fig. 2 provides for the present invention；

The structural representation for the base station embodiment one that Fig. 3 provides for the present invention；

The network topology schematic diagram one that Fig. 4 provides for the present invention；

The network topology schematic diagram two that Fig. 5 provides for the present invention；

The schematic flow sheet of the embodiment of the method one for the holding business continuity that Fig. 6 provides for the present invention；

The signaling process figure of the embodiment of the method three for the holding business continuity that Fig. 7 provides for the present invention；

The signaling process figure of the embodiment of the method four for the holding business continuity that Fig. 8 provides for the present invention；

The signaling process figure of the embodiment of the method five for the holding business continuity that Fig. 9 provides for the present invention；

The signaling process figure of the embodiment of the method six for the holding business continuity that Figure 10 provides for the present invention；

The structural representation for the base station embodiment three that Figure 11 provides for the present invention；

The structural representation of the system embodiment for the holding business continuance that Figure 12 provides for the present invention.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The user equipment being related in the application, that is terminal, can be that wireless terminal can also be catv terminal, wireless terminal can refer to the equipment for providing a user voice and/or data connectivity, portable equipment with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) communicated with one or more core nets, wireless terminal can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, WLL (WLL, Wireless Local Loop) stand, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Wireless terminal is referred to as system, subscri er unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device), or subscriber's installation (User Equipment).

The base station (for example, access point) being related in the application can refer in access network on interface in the air by one or more sectors and the equipment of wireless terminal communications.Base station can be used for IP packets mutually being changed the air frame received, and as the router between wireless terminal and the remainder of access network, the remainder of wherein access network may include Internet protocol (IP) network.Attribute management of the base station also tunable to air interface.For example, base station can be the base station (BTS in GSM or CDMA, Base Transceiver Station), it can also be the base station (NodeB) in WCDMA, it can also be evolved base station (NodeB or the eNB or e-NodeB in LTE, evolutional Node B), the application is not limited.

The embodiment of the present invention goes for user equipment in multicast broadcast single frequency network (Multicast Broadcast Single Frequency Network, hereinafter referred to as MBSFN) during interregional movement, receive the scene of the business of the base station broadcast in MBSFN regions.Optionally, business here can be MBMS, and the MBMS can be data service, can be speech business, can also be other multimedia services.It should be noted that, multiple cells can be included under one MBSFN region, and a MBSFN region can be serviced by multiple base stations, but the system frequency used during all base station broadcast MBMSs in a MBSFN region is identical, frequency is used to be different during base station broadcast MBMS in different MBSFN regions；Also, different MBSFN regions can broadcast identical MBMS, and these different MBSFN regions can correspond to identical SAI.The present embodiments relate to scene can be different MBSFN regional broadcast identical MBMSs, and these different MBSFN regions correspondence identical SAI scene, referring to Fig. 2.

The structural representation for the base station embodiment one that Fig. 3 provides for the present invention.As shown in figure 3, the base station first class services MBSNN regions, the base station can be the first base station in following embodiments of the method, the base station includes：Sending module 10, receiving module 11 and processing module 12.

Wherein, sending module 10, for broadcasting the first MBMS to user equipment；Receiving module 11, for receiving the configured information that second base station in the 2nd MBSFN regions of service is sent, wherein, the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS；Processing module 12, for when the user equipment leaves the first MBSFN regions, the user equipment is switched to by the 2nd MBSFN regions from the base station in current MBSFN regions according to the configured information, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Specifically, sending module 10 is current to broadcast the first MBMS to user equipment, when the 2nd MBSFN regions start the first MBMS of broadcast, 2nd MBSFN regions send configured information by the second base station to first base station, i.e., indicate that the business of the 2nd MBSFN regions current broadcast is the first MBMS to first base station by the configured information.It should be noted that, the MBMS of base station broadcast first in 2nd MBSFN regions, can be other MBMSs of base station broadcast first in second the first MBMS of base station broadcast or the 2nd MBSFN regions in the 2nd MBSFN regions in addition to the second base station；As long as that is there is MBMS to start broadcast on the 2nd MBSFN regions, the 2nd MBSFN regions all can be by the second base station to first base station transmission configured information, to indicate the MBMS type of the 2nd MBSFN regions current broadcast to first base station.In addition, second base station is the neighbor base station of first base station, the second base station can be one, or multiple, therefore, and above-mentioned configured information can be one, or multiple, that is to say, that first base station may have multiple different neighbor base stations.

The receiving module 11 of above-mentioned first base station is after the configured information of the second base station transmission is received, what processing module 12 determined the 2nd MBSFN regions current broadcast according to the configured information is the first MBMS, then the configured information is recorded or kept in by processing module 12.(the leaving the first MBSFN regions any MBSFN regions in addition to the first MBSFN regions can be moved to for UE here when the UE in the first MBSFN regions leaves the first MBSFN regions, the fringe region in the first MBSFN regions can also be moved to for UE), now UE can not receive sending module 10 broadcast the first MBMS or receive broadcast the first MBMS signal intensity it is very weak, UE can be switched to and currently broadcasted on the 2nd MBSFN regions of the first MBMS by processing module 12 according to the configured information, to ensure that it is continuous that UE receives the first MBMS.It is actually to switch to user equipment on the base station in the 2nd MBSFN regions it should be noted that UE is switched into the 2nd MBSFN regions here.Optionally, when the first MBMS is currently broadcasted in the second base station, processing module 12 can switch to UE on the second base station according to configured information；Optionally, when also having other base stations currently broadcasting the first MBMS in the 2nd MBSFN regions, then the configured information that processing module 12 can be sent according to the second base station switches to UE on other base stations that the first MBMS is being broadcasted in the 2nd MBSFN regions.

Referring to Fig. 2, UE is currently at the first MBSFN regions, and UE is receiving the first MBMS that sending module 10 is broadcasted in the first system frequency.When UE is moved from the first MBSFN regions to other MBSFN regions, it is assumed that UE is moved to the edge in the first MBSFN regions shown in Fig. 2, The 3rd MBSFN regions will be entered, now UE do not received in the first system frequency sending module 10 broadcast the first MBMS or receive broadcast the first MBMS signal intensity it is very weak (and now the first MBMS remains the business interested to UE), then UE reports oneself current communication quality to first base station, for example, can be fed back by measurement report, can also be and reported by other information to first base station.The processing module 12 of first base station is after the poor situation of the current communication qualities of UE is known, the configured information sent according to the second base station before knows that the business broadcasted in current 2nd MBSFN regions is the first MBMS.Therefore, in order to ensure UE receives the continuous of the first MBMS, UE is switched to the 2nd MBSFN regions by processing module 12 from the base station in the 3rd current MBSFN regions.Optionally, processing module 12 can should currently be set up with broadcasting the base station of the first MBMS in the 2nd MBSFN regions by corresponding Handshake Protocol or signaled UE and be communicated, so as to which just UE is switched on the 2nd MBSFN regions, and then alloing UE to continue to the first MBMS on the 2nd MBSFN regions, it is ensured that UE receives the continuity of the first MBMS.If it should be noted that processing module 12 finally determine UE can be switched on multiple base stations in the 2nd MBSFN regions, processing module 12 can an optional base station, UE is switched into the base station from the base station in the 3rd current MBSFN regions.

In the prior art, during UE is moved to other MBSFN regions from the first MBSFN regions, and the first MBMS that UE is still broadcasted first base station is interested, but it is due to UE movement, cause UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak, but it is due to that first base station can not know which current base station is broadcasting the first MBMS in other base stations in addition to itself in the prior art, therefore UE can not be switched on correct target BS, interrupted so as to cause UE to receive the first MBMS；But, in the present invention, because the business of the 2nd MBSFN regions current broadcast by configured information can be informed first base station by the second base station, therefore, when UE can not be received in moving process the first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, processing module 12 can switch to UE on the 2nd MBSFN regions from the base station in the MBSFN regions being presently according to the configured information, the first MBMS is continued on the 2nd MBSFN regions, so that UE can receive the first MBMS without interruption, it ensure that UE receives the continuity of the first MBMS.

Base station provided in an embodiment of the present invention, the first MBMS, and the configured information that the second base station for receiving the 2nd MBSFN regions of service by receiving module is sent are broadcasted by sending module to user equipment, So that when processing module determines that user equipment leaves the first MBSFN regions, user equipment can be switched to by the 2nd MBSFN regions from the base station in current MBSFN regions according to configured information, so that user equipment receives first MBMS on the 2nd MBSFN regions, so that UE can continuously receive MBMS in moving process, it is ensured that the continuity of business.

On the basis of above-described embodiment, further, above-mentioned processing module 12 is additionally operable to before user equipment is switched into the 2nd MBSFN regions from current MBSFN regions, and UE is switched into the 2nd MBSFN regions according to the selection of above-mentioned configured information.That is, assuming that when UE leaves the first MBSFN regions, processing module 12 informs that UE should select the 2nd MBSFN regions according to the configured information, sets up and communicates with the base station in the 2nd MBSFN regions, so as to continue to the first MBMS in the 2nd MBSFN regions.

Further, above-mentioned configured information can include the 2nd MBSFN regions current broadcast business business information, and the second base station mark or the second system frequency of the second base station.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, processing module 12 is when it is determined that UE leaves the first MBSFN regions, UE is switched to by the second base station according to the configured information, that is to say, that currently broadcasting the first MBMS in the second base station in the 2nd MBSFN regions.It should be noted that the first MBMS is currently also being broadcasted in other base stations even if in the 2nd MBSFN regions, UE is switched to the second base station by processing module 12 according further to the mark of the second base station.The mark of second base station can be the corresponding SAI in the second base station, other marks of the second base station be can also be, as long as first base station can identify the second base station according to the mark.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and the second base station second system frequency when, processing module 12 selects the target BS that suitable target BS (target BS is currently broadcasting the first MBMS) switches to UE in the 2nd MBSFN regions according to the configuration information (such as the first system frequency of first base station) of the configured information and first base station when it is determined that UE leaves the first MBSFN regions in the 2nd MBSFN regions.It should be noted that even if the first MBSFN business is also being broadcasted on current second base station, processing module 12 still can select suitable target BS to switch over.Certainly, if the target BS that processing module 12 is determined is the second base station, processing module 12 just switches to UE on the second base station.

It should be noted that the business information of the business of the 2nd MBSFN regions current broadcast included in above-mentioned configured information can be interim mobile group identification (the Temporary Mobile Group of the business Identity, hereinafter referred to as TMGI), it can also be the attribute information of the business, can also be identified for other of the business, as long as processing module 12 can identify the type of service of the business according to the business information.

On the basis of above-described embodiment, as a kind of possible embodiment of the embodiment of the present invention, the present embodiment obtains the process of above-mentioned configured information in referring to the base station configuration updating request message that processing module 12 is sent from the second base station.Further, above-mentioned receiving module 11, the configured information is carried specifically for receiving in the base station configuration updating request message that second base station is sent, the base station configuration updating request message.

Specifically, second base station carries out intercommunication by X2 interface and base station, that is base station configuration updating request message (eNB configuration update request) is sent to first base station by the second base station by X2 interface, and above-mentioned configured information is carried in the base station configuration updating request message.

Receiving module 11 sends base station configuration updating response message (eNB configuration update) by sending module 10 after the base station configuration updating request message of the second base station transmission is received to the second base station.During UE is moved to other MBSFN regions from the first MBSFN regions, if processing module 12 determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and processing module 12 knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, processing module 12 just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, as the alternatively possible embodiment of the embodiment of the present invention, the present embodiment obtains the process of above-mentioned configured information in referring to the X2 interface modification request message that processing module 12 is sent from the second base station.Further, above-mentioned receiving module 11, the X2 interface sent specifically for receiving second base station changes request message.

Specifically, second base station carries out intercommunication by X2 interface and first base station, that is X2 interface is changed request message (X2modify request) by X2 interface and is sent to first base station by the second base station, and above-mentioned configured information is carried in X2 interface modification request message.

Receiving module 11 sends X2 to the second base station after the X2 interface modification request message of the second base station transmission is received, by sending module 10 and changes response message (X2modify response).During UE is moved to other MBSFN regions from the first MBSFN regions, if processing module 12 determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and processing module 12 knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, processing module 12 can just switch to UE on the 2nd MBSFN regions from the base station in the UE MBSFN regions being presently according to above-mentioned configured information, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, it is used as the third possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that receiving module 11 receives the configured information that the second base station is sent by network element device, the network element device is MCE, it may refer to the network topology schematic diagram shown in Fig. 4, in Fig. 4, first base station and the second base station are scheduled management by common MCE.Further, above-mentioned receiving module 11, specifically for receiving the MBMS schedule informations that second base station is sent by the MCE；Wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the base station, and the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

Specifically, when first base station and the second base station are scheduled management by same MCE, first base station and the second base station can carry out intercommunication by MCE, you can to carry out intercommunication by the M2 interfaces between base station and MCE.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to MCE by the second base station, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.MCE is after the M2 interfaces for receiving the transmission of the second base station set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries and is sent to first base station in MBMS schedule informations (MBMS scheduling information).Receiving module 11 is after the MBMS schedule informations are received, configured information in the MBMS schedule informations is read by processing module 12, (MBMS scheduling are responded to know type of service that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations are sent to MCE by sending module 10 information response)。

During UE is moved to other MBSFN regions from the first MBSFN regions, if processing module 12 determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and processing module 12 knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, processing module 12 just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, it is used as the 4th kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to another detailed process that receiving module 11 receives the configured information that the second base station is sent by network element device, the network element device includes the first MCE, the 2nd MCE, the first MME and the 2nd MME, it may refer to the network topology schematic diagram shown in Fig. 5, in Fig. 5, first MCE management and running first base stations, 2nd the second base station of MCE management and running, and the first MME manage the first MCE, the 2nd MME manage the 2nd MCE.Optionally, the first MME and the 2nd MME in Fig. 5 can also be also applied for the scene that the first MCE and the 2nd MCE are managed by same MME for same MME, i.e. the present embodiment.Following technical proposals manage the first MCE with the first MME, and the 2nd MME is illustrated exemplified by managing the 2nd MCE scene.

Further, above-mentioned receiving module 11, specifically for receiving the MBMS schedule informations that second base station is sent by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Specifically, when first base station and the second base station are scheduled management by different MCE, the first base Stand and the second base station can carry out intercommunication by different MCE；When two MCE are managed by different MME, two different MCE can carry out intercommunication by MME.It in the present embodiment, can be interacted, can be interacted between MCE and MME by M3 interfaces by M2 interfaces between base station and MCE, S10 interactive interfacings can be passed through between two different MME.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to the 2nd MCE by the second base station, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.2nd MCE is after the M2 interfaces for receiving the transmission of the second base station set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries to set up in request message (M3setup request) in M3 interfaces and is sent to the 2nd MME.

2nd MME reads configured information therein, and sends M3 interfaces to the 2nd MCE and set up response message (M3setup response) after the M3 interfaces for receiving the 2nd MCE transmissions set up request message.The configured information read is sent to the first MME by the 2nd MME by the S10 interfaces between the first MME.

The configured information received is carried and is sent to the first MCE in M3 interfaces reset message (M3RESET) by the first MME, first MCE sends M3 interfaces after M3 interfaces replacement message is received, to the first MME and resets confirmation message (M3RESET ACKNOWLEDGE).First MCE reads the configured information in M3 interfaces replacement message, and configured information carrying is sent into first base station in MBMS schedule informations.

Receiving module 11 is after the MBMS schedule informations are received, configured information in the MBMS schedule informations is read by processing module 12, to know the type of service for the business that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations response (MBMS scheduling information response) is sent to the first MCE by sending module 10.

During UE is moved to other MBSFN regions from the first MBSFN regions, if processing module 12 determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and processing module 12 knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, processing module 12 just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station, so that UE continues to the first MBMS on second base station, so that UE can continuously receive the first MBMS in moving process.

Base station provided in an embodiment of the present invention, first MBMS is broadcasted to user equipment by sending module, and the configured information for the second base station transmission for servicing the 2nd MBSFN regions is received by receiving module, so that when processing module determines that user equipment leaves the first MBSFN regions, user equipment is switched to by the 2nd MBSFN regions from the base station in current MBSFN regions according to configured information, so that user equipment receives first MBMS on the 2nd MBSFN regions, so that UE can continuously receive MBMS in moving process, it is ensured that the continuity of business.

The embodiment of the present invention two provides a kind of base station.The base station services the 2nd MBSFN regions, and the base station can be the second base station in embodiment of the method.The base station includes：Sending module, for sending configured information to the first base station in first class services MBSFN regions；Wherein, the first base station is when preceding to user equipment broadcast first MBMS, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is the first MBMS.

Specifically, when the 2nd MBSFN regions of service start the first MBMS of broadcast, 2nd MBSFN regions send configured information by the sending module of the second base station to first base station, i.e., indicate that the business of the 2nd MBSFN regions current broadcast is the first MBMS to first base station by the configured information.It should be noted that, the MBMS of base station broadcast first in 2nd MBSFN regions, can be other MBMSs of base station broadcast first in second the first MBMS of base station broadcast or the 2nd MBSFN regions in the 2nd MBSFN regions in addition to the second base station；As long as that is there is MBMS to start broadcast on the 2nd MBSFN regions, the 2nd MBSFN regions all can be by the sending module of the second base station to first base station transmission configured information, to indicate the MBMS type of the 2nd MBSFN regions current broadcast to first base station.In addition, the second base station where above-mentioned sending module is the neighbor base station of first base station, the second base station can be one, or multiple, therefore, and above-mentioned configured information can be one, or multiple.That is, first base station may have multiple different neighbor base stations.

First base station is after the configured information of sending module transmission is received, and what first base station determined the 2nd MBSFN regions current broadcast according to the configured information is the first MBMS, then the configured information is recorded or kept in by first base station.(the leaving the first MBSFN regions any MBSFN regions in addition to the first MBSFN regions can be moved to for UE here when the UE in the first MBSFN regions leaves the first MBSFN regions, the fringe region in the first MBSFN regions can also be moved to for UE), the broadcast first that now UE can not receive the first MBMS of first base station broadcast or receive The signal intensity of the first base station of MBMS is very weak, and first base station can switch to UE according to the configured information the 2nd MBSFN regions for currently broadcasting the first MBMS, to ensure that it is continuous that UE receives the first MBMS.Optionally, when the first MBMS is currently broadcasted in the second base station, first base station can switch to UE on the second base station according to configured information；Optionally, when also having other base stations currently broadcasting the first MBMS in the 2nd MBSFN regions, then the configured information that first base station can be sent according to the second base station switches to UE on other base stations that the first MBMS is being broadcasted in the 2nd MBSFN regions.The embodiment description shown in above-mentioned Fig. 3 is specifically may refer to, be will not be repeated here.

Base station provided in an embodiment of the present invention, the business sent by sending module to first base station for indicating the 2nd MBSFN regions current broadcast is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN regions of first base station service, user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process, it ensure that the continuity of business.

Further, above-mentioned configured information can include the 2nd MBSFN regions current broadcast business business information, and the base station (i.e. the second base station) mark or the second system frequency of the second base station.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, first base station is when it is determined that UE leaves the first MBSFN regions, UE is switched to by the second base station according to the configured information, that is to say, that the sending module of the second base station in the 2nd MBSFN regions is currently broadcasting the first MBMS.It should be noted that the first MBMS is currently also being broadcasted in other base stations even if in the 2nd MBSFN regions, UE is switched to the second base station by first base station according further to the mark of the second base station.The mark of second base station can be the corresponding SAI in the second base station, other marks of the second base station be can also be, as long as first base station can identify the second base station according to the mark.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and the second base station second system frequency when, first base station selects the target BS that suitable target BS (target BS is currently broadcasting the first MBMS) switches to UE in the 2nd MBSFN regions according to the configuration information (such as the first system frequency of first base station) of the configured information and first base station when it is determined that UE leaves the first MBSFN regions in the 2nd MBSFN regions.It should be noted that even if the first MBSFN business is also being broadcasted on current second base station, first base station still can Suitable target BS will be selected to switch over.Certainly, if the target BS that first base station is determined is the second base station, first base station just switches to UE on the second base station.

It should be noted that, the business information of the business of the 2nd included MBSFN regions current broadcast can be the TMGI of the business in above-mentioned configured information, it can also be the attribute information of the business, it can also be identified for other of the business, as long as first base station can identify the type of service of the business according to the business information.

On the basis of above-described embodiment, as a kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to sending module and configured information is carried to the process that first base station is sent in base station configuration updating request message.Further, above-mentioned sending module, the configured information is carried specifically for being sent to the first base station in base station configuration updating request message, the base station configuration updating request message.

Specifically, second base station carries out intercommunication by X2 interface and first base station, i.e. base station configuration updating request message (eNB configuration updaterequest) is sent to first base station by the sending module of the second base station by X2 interface, and above-mentioned configured information is carried in the base station configuration updating request message.

First base station sends base station configuration updating response message (eNB configuration update) after the base station configuration updating request message of the second base station transmission is received to the second base station.During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, as the alternatively possible embodiment of the embodiment of the present invention, the present embodiment refers to sending module and configured information is carried to the process that first base station is sent in X2 interface changes request message.Further, above-mentioned sending module, the configured information is carried specifically for being sent to the first base station in X2 interface request message, the X2 interface request message.

Specifically, the second base station carries out the hair of intercommunication, i.e. the second base station by X2 interface and first base station Send module that X2 interface is changed into request message (X2modify request) by X2 interface and be sent to first base station, above-mentioned configured information is carried in X2 interface modification request message.

First base station sends X2 modification response messages (X2modify response) after the X2 interface modification request message of the second base station transmission is received to the second base station.During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station can just switch to UE on the 2nd MBSFN regions from the base station in the UE MBSFN regions being presently according to above-mentioned configured information, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, as the third possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that configured information is sent to first base station by network element device by sending module.The network element device can be common management first base station and the MCE of the second base station, may refer to the network topological diagram shown in Fig. 4.Further, above-mentioned sending module, specifically for sending MBMS schedule informations to the first base station by the MCE, wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to the base station received and are sent to the first base station；Wherein, the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to MCE by sending module, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.MCE is after the M2 interfaces for receiving the transmission of the second base station set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries and is sent to first base station in MBMS schedule informations (MBMS scheduling information).First base station reads the configured information in the MBMS schedule informations after the MBMS schedule informations are received, to know type of service that the 2nd MBSFN regions are currently being broadcasted, and sends MBMS to MCE Schedule information responds (MBMS scheduling information response).

During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determines that the signal intensity for the first base station that first MBMS can not be currently received in the broadcasting frequency in the first MBSFN regions or the first MBMS of broadcast is received is very weak, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, as the 4th kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to another detailed process that configured information is sent to first base station by network element device by sending module.The network element device includes the first MCE, the 2nd MCE, the first MME and the 2nd MME, may refer in the network topology schematic diagram shown in Fig. 5, Fig. 5, first MCE management and running first base stations, 2nd the second base station of MCE management and running, and the first MME manages the first MCE, the 2nd MME manages the 2nd MCE.Optionally, the first MME and the 2nd MME in Fig. 5 can also be also applied for the scene that the first MCE and the 2nd MCE are managed by same MME for same MME, i.e. the present embodiment.Following technical proposals manage the first MCE with the first MME, and the 2nd MME is illustrated exemplified by managing the 2nd MCE scene.

Further, above-mentioned sending module, specifically for sending MBMS schedule informations to the first base station by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of the base station (i.e. the second base station) transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to the 2nd MCE by sending module, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.2nd MCE is after the M2 interfaces for receiving sending module transmission set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries to set up in request message (M3setup request) in M3 interfaces and is sent to the 2nd MME.

First base station is after the MBMS schedule informations are received, read the configured information in the MBMS schedule informations, to know type of service that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations response (MBMS scheduling information response) is sent to MCE.

During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

Base station provided in an embodiment of the present invention, is sent for indicating second by sending module to first base station The business of MBSFN regions current broadcast is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN regions of first base station service, user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process, it is ensured that the continuity of business.

The schematic flow sheet of the embodiment of the method one for the holding business continuity that Fig. 6 provides for the present invention.As shown in fig. 6, this method includes：

S101：The first base station in first class services MBSFN regions broadcasts the first MBMS to user equipment.

S102：First base station receives the configured information that second base station in the 2nd MBSFN regions of service is sent, wherein, the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS.

Specifically, when the 2nd MBSFN regions start the first MBMS of broadcast, 2nd MBSFN regions send configured information by the second base station to first base station, i.e., indicate that the business of the 2nd MBSFN regions current broadcast is the first MBMS to first base station by the configured information.It should be noted that, the MBMS of base station broadcast first in 2nd MBSFN regions, can be other MBMSs of base station broadcast first in second the first MBMS of base station broadcast or the 2nd MBSFN regions in the 2nd MBSFN regions in addition to the second base station；As long as that is there is MBMS to start broadcast on the 2nd MBSFN regions, the 2nd MBSFN regions all can be by the second base station to first base station transmission configured information, to indicate the MBMS type of the 2nd MBSFN regions current broadcast to first base station.In addition, second base station is the neighbor base station of first base station, the second base station can be one, or multiple, therefore, and above-mentioned configured information can be one, or multiple, that is to say, that first base station may have multiple different neighbor base stations.

S103：When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by the first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Specifically, first base station is after the configured information of the second base station transmission is received, what first base station determined the 2nd MBSFN regions current broadcast according to the configured information is the first MBMS, then the first base Stand and the configured information is recorded or kept in.(the leaving the first MBSFN regions any MBSFN regions in addition to the first MBSFN regions can be moved to for UE here when the UE in the first MBSFN regions leaves the first MBSFN regions, the fringe region in the first MBSFN regions can also be moved to for UE), now UE can not receive first base station broadcast the first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak, UE can be switched to and currently broadcasted on the 2nd MBSFN regions of the first MBMS by first base station according to the configured information, to ensure that it is continuous that UE receives the first MBMS.It is actually to switch to user equipment on the base station in the 2nd MBSFN regions it should be noted that UE is switched into the 2nd MBSFN regions here.Optionally, when the first MBMS is currently broadcasted in the second base station, first base station can switch to UE on the second base station according to configured information；Optionally, when also having other base stations currently broadcasting the first MBMS in the 2nd MBSFN regions, then the configured information that first base station can be sent according to the second base station switches to UE on other base stations that the first MBMS is being broadcasted in the 2nd MBSFN regions.

Referring to Fig. 2, UE is currently at the first MBSFN regions, and UE is receiving the first MBMS that first base station is broadcasted in the first system frequency.When UE is moved from the first MBSFN regions to other MBSFN regions, assuming that UE is moved to the edge in the first MBSFN regions shown in Fig. 2, the 3rd MBSFN regions will be entered, now UE do not received in the first system frequency first base station broadcast the first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak (and now the first MBMS remains the business interested to UE), then UE reports oneself current communication quality to first base station, for example, can be fed back by measurement report, it can also be and reported by other information to first base station.First base station is after the poor situation of the current communication qualities of UE is known, the first base station configured information that the second base station is sent before knows that the business broadcasted in current 2nd MBSFN regions is the first MBMS.Therefore, in order to ensure UE receives the continuous of the first MBMS, UE is switched to the 2nd MBSFN regions by first base station from the base station in the 3rd current MBSFN regions.Optionally, first base station can should currently be set up with broadcasting the base station of the first MBMS in the 2nd MBSFN regions by corresponding Handshake Protocol or signaled UE and be communicated, so as to which just UE is switched on the 2nd MBSFN regions, and then alloing UE to continue to the first MBMS on the 2nd MBSFN regions, it is ensured that UE receives the continuity of the first MBMS.It should be noted that if first base station is finally determined on multiple base stations that UE can be switched in the 2nd MBSFN regions, first base station can an optional base station, by UE from the current the 3rd The base station in MBSFN regions switches to the base station.

In the prior art, during UE is moved to other MBSFN regions from the first MBSFN regions, and the first MBMS that UE is still broadcasted first base station is interested, but it is due to UE movement, cause UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak, but it is due to that first base station can not know which current base station is broadcasting the first MBMS in other base stations in addition to itself in the prior art, therefore UE can not be switched on correct target BS, interrupted so as to cause UE to receive the first MBMS；But, in the present invention, because the business of the 2nd MBSFN regions current broadcast by configured information can be informed first base station by the second base station, therefore, when UE can not be received in moving process the first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, first base station can switch to UE on the 2nd MBSFN regions from the base station in the MBSFN regions being presently according to the configured information, the first MBMS is continued on the 2nd MBSFN regions, so that UE can receive the first MBMS without interruption, it ensure that UE receives the continuity of the first MBMS.

The method provided in an embodiment of the present invention for keeping business continuity, the business for being used to indicate the 2nd MBSFN regions current broadcast that the transmission of the second base station is received by first base station is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN areas of first base station service, user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive MBMS in moving process, it ensure that the continuity of business.

Further, on the basis of above-described embodiment, above-mentioned first base station from current MBSFN regions by user equipment before the 2nd MBSFN regions are switched to, and first base station selects UE switching to the 2nd MBSFN regions always according to above-mentioned configured information.That is, it is assumed that when UE leaves the first MBSFN regions, first base station informs that UE should select the 2nd MBSFN regions according to the configured information, sets up and communicates with the base station in the 2nd MBSFN regions, so as to continue to the first MBMS in the 2nd MBSFN regions.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, first base station when it is determined that UE leaves the first MBSFN regions, UE is switched to by the second base station according to the configured information, that is to say, that currently broadcasting the first MBMS in the second base station in the 2nd MBSFN regions.It should be noted that the first MBMS is currently also being broadcasted in other base stations even if in the 2nd MBSFN regions, UE is switched to the second base station by first base station according further to the mark of the second base station.The mark of second base station can be the corresponding SAI in the second base station, other marks of the second base station be can also be, as long as first base station can identify the second base station according to the mark.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and the second base station second system frequency when, first base station selects the target BS that suitable target BS (target BS is currently broadcasting the first MBMS) switches to UE in the 2nd MBSFN regions according to the configuration information (such as the first system frequency of first base station) of the configured information and first base station when it is determined that UE leaves the first MBSFN regions in the 2nd MBSFN regions.It should be noted that even if the first MBSFN business is also being broadcasted on current second base station, first base station still can will select suitable target BS to switch over.Certainly, if the target BS that first base station is determined is the second base station, first base station just switches to UE on the second base station.

It should be noted that, the business information of the business of the 2nd included MBSFN regions current broadcast can be interim mobile group identification (the Temporary Mobile GroupIdentity of the business in above-mentioned configured information, hereinafter referred to as TMGI), it can also be the attribute information of the business, it can also be identified for other of the business, as long as first base station can identify the type of service of the business according to the business information.

On the basis of above-described embodiment, as a kind of possible embodiment of the embodiment of the present invention, the present embodiment obtains the process of above-mentioned configured information in referring to the base station configuration updating request message that first base station is sent from the second base station.Further, above-mentioned S101 is specially：First base station receives in the base station configuration updating request message that second base station is sent, the base station configuration updating request message and carries the configured information.

Specifically, second base station carries out intercommunication by X2 interface and first base station, that is base station configuration updating request message (eNB configuration update request) is sent to first base station by the second base station by X2 interface, and above-mentioned configured information is carried in the base station configuration updating request message.

First base station sends base station configuration updating response message (eNB configuration update) after the base station configuration updating request message of the second base station transmission is received to the second base station.During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determines current UE Can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

Optionally, whether above-mentioned first base station come the business for determining the 2nd MBSFN regions current broadcast can be the first MBMS by the TMGI of the business of the 2nd MBSFN regions current broadcast carried in configured information, i.e. first base station can be by the way that the TMGI of the TMGI of the business the first MBMSs broadcasted with itself be contrasted, and the business for determining the 2nd MBSFN regions current broadcast is the first MBMS.

On the basis of above-described embodiment, as the alternatively possible embodiment of the embodiment of the present invention, the present embodiment obtains the process of above-mentioned configured information in referring to the X2 interface modification request message that first base station is sent from the second base station.Further, above-mentioned S101 is specially：First base station receives in the X2 interface modification request message that second base station is sent, the X2 interface modification request message and carries the configured information.

First base station sends X2 modification response messages (X2modify response) after the X2 interface modification request message of the second base station transmission is received to the second base station.During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, it is used as the third possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that first base station receives the configured information that the second base station is sent by network element device, the network element device is multiple cell multicast coordination entity (Multi-cell/multicast CoordinationEntity, hereinafter referred to as MCE), it may refer to the network topology schematic diagram shown in Fig. 4, in Fig. 4, first base station and the second base station are scheduled management by common MCE.Further, above-mentioned S101 is specifically included：First base station receives the MBMS schedule informations that second base station is sent by the MCE；Wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the first base station, and the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to MCE by the second base station, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.

MCE is after the M2 interfaces for receiving the transmission of the second base station set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries and is sent to first base station in MBMS schedule informations (MBMS scheduling information).First base station is after the MBMS schedule informations are received, read the configured information in the MBMS schedule informations, to know type of service that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations response (MBMS scheduling information response) is sent to MCE.

During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station according to above-mentioned configured information know the 2nd MBSFN regions current broadcast business be first MBMS, first base station just the base station in the UE MBSFN regions being presently in from UE can be switched to by the 2nd MBSFN regions according to above-mentioned configured information in base station on, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

On the basis of above-described embodiment, it is used as the 4th kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that first base station receives the configured information that the second base station is sent by network element device, the network element device includes the first MCE, 2nd MCE, first mobile management network element (MobilityManagement Entity, hereinafter referred to as MME) and the 2nd MME, it may refer to the network topology schematic diagram shown in Fig. 5, in Fig. 5, first MCE management and running first base stations, 2nd the second base station of MCE management and running, and the first MME manage the first MCE, 2nd MME manages the 2nd MCE.Optionally, the first MME and the 2nd MME in Fig. 5 can also be also applied for the scene that the first MCE and the 2nd MCE are managed by same MME for same MME, i.e. the present embodiment.Following technical proposals manage the first MCE with the first MME, and the 2nd MME is illustrated exemplified by managing the 2nd MCE scene.

Further, above-mentioned S101 is specifically included：First base station receives the MBMS schedule informations that second base station is sent by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

First base station is after the MBMS schedule informations are received, read the configured information in the MBMS schedule informations, to know the type of service for the business that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations response (MBMS scheduling information response) is sent to the first MCE.

Optionally, whether above-mentioned first base station come the business for determining the 2nd MBSFN regions current broadcast can be the first MBMS by the TMGI of the business of the 2nd MBSFN regions current broadcast carried in configured information, i.e. first base station can be by the way that the TMGI of the TMGI of the business the first MBMSs broadcasted with itself be contrasted, and the business for determining the 2nd MBSFN regions current broadcast is the first MBMS..

The embodiment of the present invention two provides a kind of method for keeping business continuity.The present embodiments relate to be UE in the interregional moving process of MBSFN, first base station ensure UE receive the first MBMS service continuity detailed process.This method includes：The second base station for servicing the second multicast broadcast single frequency network MBSFN regions sends configured information to the first base station in first class services MBSFN regions；Wherein, the first base station is when preceding to user equipment broadcast first MBMS, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is the first MBMS.

Specifically, when the 2nd MBSFN regions start the first MBMS of broadcast, 2nd MBSFN regions send configured information by the second base station to first base station, i.e., indicate that the business of MBSFN regions current broadcast is the first MBMS to first base station by the configured information.It should be noted that, the MBMS of base station broadcast first in 2nd MBSFN regions, can be other MBMSs of base station broadcast first in second the first MBMS of base station broadcast or the 2nd MBSFN regions in the 2nd MBSFN regions in addition to the second base station；As long as that is there is MBMS to start broadcast on the 2nd MBSFN regions, the 2nd MBSFN regions all can be by the second base station to first base station transmission configured information, to indicate the MBMS type of the 2nd MBSFN regions current broadcast to first base station.In addition, second base station is the neighbor base station of first base station, the second base station can be one, or multiple, therefore, and above-mentioned configured information can be one, or multiple.That is, first base station may have multiple different neighbor base stations.

First base station is after the configured information of the second base station transmission is received, and first base station is believed according to the instruction What breath determined the 2nd MBSFN regions current broadcast is the first MBMS, then the configured information is recorded or kept in by first base station.(the leaving the first MBSFN regions any MBSFN regions in addition to the first MBSFN regions can be moved to for UE here when the UE in the first MBSFN regions leaves the first MBSFN regions, the fringe region in the first MBSFN regions can also be moved to for UE), now UE can not receive the first MBMS of first base station broadcast or the signal intensity of the first base station of the MBMS of broadcast first received is very weak, UE can be switched to and currently broadcasted on the 2nd MBSFN regions of the first MBMS by first base station according to the configured information, to ensure that it is continuous that UE receives the first MBMS.Optionally, when the first MBMS is currently broadcasted in the second base station, first base station can switch to UE on the second base station according to configured information；Optionally, when also having other base stations currently broadcasting the first MBMS in the 2nd MBSFN regions, then the configured information that first base station can be sent according to the second base station switches to UE on other base stations that the first MBMS is being broadcasted in the 2nd MBSFN regions.The embodiment description shown in above-mentioned Fig. 6 is specifically may refer to, be will not be repeated here.

The method provided in an embodiment of the present invention for keeping business continuity, the business sent by the second base station to first base station for indicating the 2nd MBSFN regions current broadcast is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN regions of first base station service, user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process, it ensure that the continuity of business.

Optionally, when above-mentioned configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, first base station is when it is determined that UE leaves the first MBSFN regions, UE is switched to by the second base station according to the configured information, that is to say, that currently broadcasting the first MBMS in the second base station in the 2nd MBSFN regions.It should be noted that the first MBMS is currently also being broadcasted in other base stations even if in the 2nd MBSFN regions, UE is switched to the second base station by first base station according further to the mark of the second base station.The mark of second base station can be the corresponding SAI in the second base station, other marks of the second base station be can also be, as long as first base station can identify the second base station according to the mark.

Optionally, when business letter of the above-mentioned configured information for the business of the 2nd MBSFN regions current broadcast During the second system frequency of breath and the second base station, first base station selects the target BS that suitable target BS (target BS is currently broadcasting the first MBMS) switches to UE in the 2nd MBSFN regions according to the configuration information (such as the first system frequency of first base station) of the configured information and first base station when it is determined that UE leaves the first MBSFN regions in the 2nd MBSFN regions.It should be noted that even if the first MBSFN business is also being broadcasted on current second base station, first base station still can will select suitable target BS to switch over.Certainly, if the target BS that first base station is determined is the second base station, first base station just switches to UE on the second base station.

On the basis of above-described embodiment, as a kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to the second base station and configured information is carried to the process that first base station is sent in base station configuration updating request message.Further, above-mentioned second base station sends configured information to first base station, can specifically include：Second base station sends in base station configuration updating request message, the base station configuration updating request message to the first base station and carries the configured information.

On the basis of above-described embodiment, as the alternatively possible embodiment of the embodiment of the present invention, the present embodiment refers to the second base station and configured information is carried to the process that first base station is sent in X2 interface changes request message.Further, above-mentioned second base station sends configured information to first base station, can specifically include：Second base station sends in X2 interface request message, the X2 interface request message to the first base station and carries the configured information.

On the basis of above-described embodiment, as the third possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that configured information is sent to first base station by network element device by the second base station.The network element device can be common management first base station and the MCE of the second base station, may refer to the network topological diagram shown in Fig. 4.Further, above-mentioned second base station sends configured information to first base station, can specifically include：Second base station sends MBMS schedule informations by the MCE to the first base station, wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the first base station；Wherein, the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

M2 interfaces are set up request message (M2setup request) by M2 interfaces and are sent to MCE by the second base station, and the M2 interfaces, which are set up in request message, carries above-mentioned configured information.MCE is after the M2 interfaces for receiving the transmission of the second base station set up request message, M2 interfaces, which are sent, to the second base station sets up response message (M2setup response), and the configured information that M2 interfaces are set up in request message carries and is sent to first base station in MBMS schedule informations (MBMS scheduling information).First base station is after the MBMS schedule informations are received, read the configured information in the MBMS schedule informations, to know type of service that the 2nd MBSFN regions are currently being broadcasted, and MBMS schedule informations response (MBMS scheduling information response) is sent to MCE.

On the basis of above-described embodiment, as the 4th kind of possible embodiment of the embodiment of the present invention, the present embodiment refers to the detailed process that configured information is sent to first base station by network element device by the second base station.The network element device includes the first MCE, the 2nd MCE, the first MME and the 2nd MME, may refer to the network topology schematic diagram shown in above-mentioned Fig. 5.Following technical proposals manage the first MCE with the first MME, and the 2nd MME is illustrated exemplified by managing the 2nd MCE scene.

Further, above-mentioned second base station sends configured information to first base station, can specifically include：Second base station sends MBMS schedule informations by the first MCE to the first base station；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message for the 2nd MCE M2 interfaces sent according to second base station received It is sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Specifically, when first base station and the second base station are scheduled management by different MCE, first base station and the second base station can carry out intercommunication by different MCE；When two MCE are managed by different MME, two different MCE can carry out intercommunication by MME.It in the present embodiment, can be interacted, can be interacted between MCE and MME by M3 interfaces by M2 interfaces between base station and MCE, S10 interactive interfacings can be passed through between two different MME.

During UE is moved to other MBSFN regions from the first MBSFN regions, if first base station determine current UE can not be received in the broadcasting frequency in the first MBSFN regions first MBMS or receive broadcast the first MBMS first base station signal intensity it is very weak when, and first base station knows that the business of the 2nd MBSFN regions current broadcast is the first MBMS according to above-mentioned configured information, what UE can be just presently in by first base station according to above-mentioned configured information from UE The base station in MBSFN regions is switched on the base station in the 2nd MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process.

The method provided in an embodiment of the present invention for keeping business continuity, the business sent by the second base station to the second base station for indicating the 2nd MBSFN regions current broadcast is the configured information of the first MBMS, if first base station determines that UE leaves the first MBSFN regions of first base station service, user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that UE continues to the first MBMS on the 2nd MBSFN regions, so that UE can continuously receive the first MBMS in moving process, it ensure that the continuity of business.

The signaling process figure of the embodiment of the method three for the holding business continuity that Fig. 7 provides for the present invention.As shown in fig. 7, this method includes：

S201：First base station broadcasts the first MBMS to user equipment.

S202, the second base station are sent to first base station carries configured information in base station configuration updating request message, the base station configuration updating request message, the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS.

S203：First base station sends base station configuration updating response message to the second base station.

S204：When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Method provided in an embodiment of the present invention, it implements the first possible embodiment that process may refer to above-mentioned embodiment illustrated in fig. 6, will not be repeated here.

The signaling process figure of the embodiment of the method four for the holding business continuity that Fig. 8 provides for the present invention.As shown in figure 8, this method includes：

S301：First base station broadcasts the first MBMS to user equipment.

S302：Second base station sends in X2 interface modification request message, the X2 interface modification request message to first base station and carries configured information, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS.

S303：First base station sends X2 modification response messages to the second base station.

S304：When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Method provided in an embodiment of the present invention, it implements second of possible embodiment that process may refer to above-mentioned embodiment illustrated in fig. 6, will not be repeated here.

The signaling process figure of the embodiment of the method five for the holding business continuity that Fig. 9 provides for the present invention.The present embodiment refers to the detailed process that first base station receives the configured information that the second base station is sent by network element device, and the network element device is MCE, may refer to the network topology schematic diagram shown in Fig. 4.As shown in figure 9, this method includes：

S401：First base station broadcasts the first MBMS to user equipment.

S402：Second base station sends M2 interfaces to MCE and sets up request message, and the M2 interfaces set up request message and carry the configured information, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS.

S403：MCE sends M2 interfaces to the second base station and sets up response message.

S404：MCE sends in the MBMS schedule informations for carrying configured information, the MBMS schedule informations to first base station and carries the configured information.

S405：First base station sends MBMS schedule informations to MCE and responded.

S406：When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Method provided in an embodiment of the present invention, it implements the third possible embodiment that process may refer to above-mentioned embodiment illustrated in fig. 6, will not be repeated here.

The signaling process figure of the embodiment of the method six for the holding business continuity that Figure 10 provides for the present invention.The present embodiment refers to first base station and receives the detailed process of configured information that the second base station is sent by network element device, and the network element device includes the first MCE, the 2nd MCE, the first MME and the 2nd MME, can be with Network topology schematic diagram shown in Figure 5.As shown in Figure 10, this method includes：

S501：First base station broadcasts the first MBMS to user equipment.

S502：Second base station sends M2 interfaces to the 2nd MCE and sets up request message, and the M2 interfaces, which are set up, carries configured information in request message, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS.

S503：2nd MCE sends M2 interfaces to the second base station and sets up response message.

S504：2nd MCE sends M3 interfaces to the 2nd MME and sets up request message, and the M3 interfaces, which are set up in request message, carries the configured information.

S505：2nd MME sends M3 interfaces to the 2nd MCE and sets up response message.

S506：2nd MME sends the configured information to the first MME.

S507：First MME sends the M3 interfaces replacement message for carrying the configured information to the first MCE.

S508：First MCE sends M3 interfaces to the first MME and resets confirmation message.

S509：First MCE sends MBMS schedule informations to first base station, and the MBMS schedule informations carry the configured information.

S510：First base station sends MBMS schedule informations to the first MCE and responded.

S511：When the user equipment leaves the first MBSFN regions, the user equipment is switched to the 2nd MBSFN regions by first base station according to the configured information from the base station in current MBSFN regions, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Method provided in an embodiment of the present invention, it implements the 4th kind of possible embodiment that process may refer to above-mentioned embodiment illustrated in fig. 6, will not be repeated here.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in a computer read/write memory medium, and the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

The structural representation for the base station embodiment three that Figure 11 provides for the present invention.The base station can be the first base station in embodiment of the method, and the base station can include：Transmitter 20, receiver 21 and processor 22.

Wherein, transmitter 20, for broadcasting the first multimedia broadcast multicast MBMS industry to user equipment Business；Receiver 21, for receiving the configured information that second base station in the 2nd MBSFN regions of service is sent, wherein, the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is first MBMS；Processor 22, for when the user equipment leaves the first MBSFN regions, the user equipment is switched to by the 2nd MBSFN regions from the base station in current MBSFN regions according to the configured information, so that the user equipment receives first MBMS on the 2nd MBSFN regions.

Base station provided in an embodiment of the present invention, can perform above method embodiment, and its implementing principle and technical effect is similar, will not be repeated here.

Further, above-mentioned processor 22, is additionally operable to before the user equipment is switched into the 2nd MBSFN regions from current MBSFN regions, and the user equipment is switched into the 2nd MBSFN regions according to configured information selection.

Further, above-mentioned receiver 21, specifically for receiving the base station configuration updating request message that second base station is sent, the configured information is carried in the base station configuration updating request message, or, the X2 interface sent specifically for receiving second base station is changed in request message, the X2 interface modification request message and carries the configured information, or, specifically for receiving the configured information that second base station is sent by network element device.

Optionally, if the network element device is multiple cell multicast coordination entity MCE, above-mentioned receiver 21, specifically for receiving the MBMS schedule informations that second base station is sent by the MCE；Wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to second base station received and are sent to the base station, and the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

Optionally, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, then above-mentioned receiver 21, specifically for receiving the MBMS schedule informations that second base station is sent by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of second base station transmission received for the 2nd MCE and be sent to described second MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Further, above-mentioned configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, and, the second system frequency of the mark of second base station or second base station.

Optionally, when the configured information for the 2nd MBSFN regions current broadcast business business information and second base station mark when, the processor 22 by the user equipment specifically for when the user equipment leaves the first MBSFN regions, second base station is switched to according to the configured information.

Optionally, when the configured information for the 2nd MBSFN regions current broadcast business business information and second base station second system frequency when, the processor 22 is specifically for when the user equipment leaves the first MBSFN regions, the target BS for being switched to the user equipment in the 2nd MBSFN regions according to the configuration information of the configured information and the first base station.

The embodiment of the present invention four provides a kind of base station, and the base station services the 2nd MBSFN regions, and the base station can be the second base station in above method embodiment, and the base station can include：Transmitter, for sending configured information to the first base station in first class services MBSFN regions；Wherein, the first base station is when preceding to user equipment broadcast first MBMS, and the business that the configured information is used to indicate the 2nd MBSFN regions current broadcast is the first MBMS.

Further, above-mentioned transmitter, specifically for sending base station configuration updating request message to the first base station, the configured information is carried in the base station configuration updating request message, or, carry the configured information specifically for being sent to the first base station in X2 interface request message, the X2 interface request message, or, specifically for sending configured information to the first base station by network element device.

Optionally, if network element device is multiple cell multicast coordination entity MCE, then above-mentioned transmitter, specifically for sending MBMS schedule informations to the first base station by the MCE, wherein, the MBMS schedule informations set up request message for the MCE M2 interfaces sent according to the base station received and are sent to the first base station；Wherein, the M2 interfaces are set up in request message and the MBMS schedule informations and carry the configured information.

Optionally, if network element device includes the first multiple cell multicast coordination entity MCE, the 2nd MCE, the first mobile management network element MME and the 2nd MME, above-mentioned transmitter, specifically for sending MBMS schedule informations to the first base station by the first MCE；Wherein, the MBMS schedule informations are that the M3 interfaces replacement message that the first MCE is sent according to the first MME received is sent to the first base station, it is that the first MME is sent to the first MCE's according to the 2nd MME received the configured informations sent that the M3 interfaces, which reset message, the configured information sets up request message according to the 2nd MCE received the M3 interfaces sent for the 2nd MME and is sent to the first MME's, the M3 interfaces set up request message and set up request message according to the M2 interfaces of the base station transmission received for the 2nd MCE and be sent to the 2nd MME's；The M2 interfaces, which set up request message, the M3 interfaces and set up request message, the M3 interfaces and reset in message and the MBMS schedule informations, carries the configured information.

Further, above-mentioned configured information includes the business information of the business of the 2nd MBSFN regions current broadcast, and, the second system frequency of the mark of the base station or the base station.The mark of the base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the base station is switched to by the user equipment；The second system frequency of the base station, for making the first base station when it is determined that the user equipment leaves the first MBSFN regions, the target BS that the user equipment is switched in the 2nd MBSFN regions.

The structural representation of the system embodiment for the holding business continuance that Figure 12 provides for the present invention.As shown in figure 12, the system includes user equipment 30, in addition to the second base station 32 described in first base station 31 and above-described embodiment described in above-described embodiment.The user equipment, first base station and the second base station can be set up by radio open communicate to connect each other.

The system provided in an embodiment of the present invention for keeping business continuance, can perform above method embodiment, its implementing principle and technical effect is similar, will not be repeated here.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

A base station, characterized in that it comprises:

A sending module, configured to broadcast a first multimedia broadcast multicast MBMS service to user equipment;

A receiving module, configured to receive indication information sent by a second base station serving the second MBSFN area, wherein the indication information is used to indicate that the service currently broadcast in the second MBSFN area is the first MBMS service;

A processing module, configured to, when the user equipment leaves the first MBSFN area, switch the user equipment from the base station of the current MBSFN area to the second MBSFN area according to the indication information, so that the user equipment The first MBMS service is received on the second MBSFN area.

The base station according to claim 1, wherein the processing module is further configured to, before switching the user equipment from the current MBSFN area to the second MBSFN area, select the The user equipment switches to the second MBSFN area.

The base station according to claim 1 or 2, wherein the receiving module is specifically configured to receive a base station configuration update request message sent by the second base station, and the base station configuration update request message carries the indication information , or, specifically used to receive the X2 interface modification request message sent by the second base station, where the X2 interface modification request message carries the indication information, or, specifically used to receive the X2 interface modification request message sent by the second base station through the network element device instructions for the .

The base station according to claim 3, wherein if the network element device is a multi-cell multicast coordination entity (MCE), the receiving module is specifically configured to receive the MBMS message sent by the second base station through the MCE Scheduling information; wherein, the MBMS scheduling information is sent by the MCE to the base station according to the received M2 interface establishment request message sent by the second base station, the M2 interface establishment request message and the MBMS scheduling information Both carry the indication information.

The base station according to claim 3, wherein if the network element equipment includes a first multi-cell multicast coordination entity MCE, a second MCE, a first mobility management network element MME, and a second MME, the receiving module , specifically for receiving MBMS scheduling information sent by the second base station through the first MCE; wherein the MBMS scheduling information is reset by the first MCE according to the received M3 interface sent by the first MME The message is sent to the base station, the M3 interface reset message is sent to the first MCE by the first MME according to the received indication information sent by the second MME, and the indication information is The second MME according to the received If the M3 interface establishment request message sent by the second MCE is sent to the first MME, the M3 interface establishment request message is sent by the second MCE according to the received M2 interface establishment request message sent by the second base station For the second MME: the M2 interface establishment request message, the M3 interface establishment request message, the M3 interface reset message and the MBMS scheduling information all carry the indication information.

The base station according to any one of claims 1-5, wherein the indication information includes service information of a service currently broadcast in the second MBSFN area, and the identity of the second base station or the second The second system frequency of the second base station.

The base station according to claim 6, wherein when the indication information is the service information of the service currently broadcast in the second MBSFN area and the identifier of the second base station, the processing module is specifically configured to When the user equipment leaves the first MBSFN area, handover the user equipment to the second base station according to the indication information; or,

When the indication information is the service information of the service currently broadcast in the second MBSFN area and the second system frequency of the second base station, the processing module is specifically configured to, when the user equipment leaves the first MBSFN area, handover the user equipment to the target base station in the second MBSFN area according to the indication information and the configuration information of the first base station.

A base station, characterized in that the base station serves a second multicast broadcast single frequency network (MBSFN) area, and the base station includes:

A sending module, configured to send indication information to a first base station serving the first MBSFN area; wherein, the first base station currently broadcasts the first multimedia broadcast multicast MBMS service to user equipment, and the indication information is used for Indicates that the service currently broadcast in the second MBSFN area is the first MBMS service.

The base station according to claim 8, wherein the sending module is specifically configured to send a base station configuration update request message to the first base station, the base station configuration update request message carrying the indication information, or, Specifically, it is used to send an X2 interface request message to the first base station, and the X2 interface request message carries the indication information, or it is specifically used to send the indication information to the first base station through a network element device.

The base station according to claim 9, wherein if the network element device is a multi-cell multicast coordination entity (MCE), the sending module is specifically configured to send MBMS scheduling information to the first base station through the MCE, Wherein, the MBMS scheduling information is received by the MCE according to The received M2 interface establishment request message sent by the base station is sent to the first base station; wherein both the M2 interface establishment request message and the MBMS scheduling information carry the indication information.

The base station according to claim 9, wherein if the network element equipment includes a first multi-cell multicast coordination entity MCE, a second MCE, a first mobility management network element MME, and a second MME, the sending module , specifically for sending MBMS scheduling information to the first base station through the first MCE; wherein the MBMS scheduling information is the M3 interface reset message sent by the first MCE according to the received first MME sent to the first base station, the M3 interface reset message is sent by the first MME to the first MCE according to the received indication information sent by the second MME, the indication information is sent by the second MME to the first MME according to the received M3 interface establishment request message sent by the second MCE, and the M3 interface establishment request message is sent by the second MCE according to the received The M2 interface establishment request message sent by the base station is sent to the second MME; the M2 interface establishment request message, the M3 interface establishment request message, the M3 interface reset message and the MBMS scheduling information all carry the instructions described above.

The base station according to any one of claims 8-11, wherein the indication information includes the service information of the service currently broadcast in the second MBSFN area, and the identity of the base station or the first number of the base station Second system frequency.

The base station according to claim 12, wherein the identifier of the base station is used to enable the first base station to switch the user equipment to the first MBSFN area when determining that the user equipment leaves the first MBSFN area. the base station;

The second system frequency of the base station is used to enable the first base station to handover the user equipment to a target base station in the second MBSFN area when determining that the user equipment leaves the first MBSFN area.

A method for maintaining business continuity, comprising:

The first base station serving the first multicast broadcast single frequency network MBSFN area broadcasts the first multimedia broadcast multicast MBMS service to the user equipment;

The first base station receives indication information sent by a second base station serving the second MBSFN area, where the indication information is used to indicate that the service currently broadcast in the second MBSFN area is the first MBMS service;

When the user equipment leaves the first MBSFN area, the first base station according to the The indication information switches the user equipment from the base station in the current MBSFN area to the second MBSFN area, so that the user equipment receives the first MBMS service in the second MBSFN area.

The method according to claim 14, wherein before the first base station handovers the user equipment from the base station in the current MBSFN area to the second MBSFN area according to the indication information, it further includes:

The first base station selects to handover the user equipment to the second MBSFN area according to the indication information.

The method according to claim 14 or 15, wherein the first base station receives the indication information sent by the second base station serving the second MBSFN area, comprising:

The first base station receives a base station configuration update request message sent by the second base station, where the base station configuration update request message carries the indication information, or,

The first base station receives the X2 interface modification request message sent by the second base station, and the X2 interface modification request message carries the indication information, or,

The first base station receives the indication information sent by the second base station through the network element device.

The method according to claim 16, wherein if the network element device is a multi-cell multicast coordination entity (MCE), the first base station receives the message sent by the second base station serving the second MBSFN area through the network element device Instructions, including:

The first base station receives the MBMS scheduling information sent by the second base station through the MCE; wherein, the MBMS scheduling information is sent by the MCE according to the received M2 interface establishment request message sent by the second base station to For the first base station, both the M2 interface establishment request message and the MBMS scheduling information carry the indication information.

The method according to claim 16, wherein if the network element equipment includes a first multi-cell multicast coordination entity MCE, a second MCE, a first mobility management network element MME, and a second MME, the first The base station receives the indication information sent by the second base station serving the second MBSFN area through the network element equipment, including:

The first base station receives the MBMS scheduling information sent by the second base station through the first MCE; wherein, the MBMS scheduling information is the first MCE sending the first MME according to the received M3 interface The reset message is sent to the first base station, and the M3 interface reset message is sent by the first MME according to the received indication information sent by the second MME For the first MCE, the indication information is sent by the second MME to the first MME according to the received M3 interface establishment request message sent by the second MCE, and the M3 interface establishment request message It is sent by the second MCE to the second MME according to the received M2 interface establishment request message sent by the second base station; the M2 interface establishment request message, the M3 interface establishment request message, the M3 Both the interface reset message and the MBMS scheduling information carry the indication information.

The method according to any one of claims 14-18, wherein the indication information includes service information of the service currently broadcast in the second MBSFN area, and the identity of the second base station or the second The second system frequency of the second base station.

The method according to claim 19, wherein when the indication information is the service information of the service currently broadcast in the second MBSFN area and the identity of the second base station, the first base station When the device leaves the first MBSFN area, handover the user equipment to the second base station according to the indication information; or,

When the indication information is the service information of the service currently broadcast in the second MBSFN area and the second system frequency of the second MBSFN area, the first base station leaves the first MBSFN area when the user equipment leaves the first MBSFN area , handover the user equipment to the target base station in the second MBSFN area according to the indication information and the configuration information of the first base station.

A method for maintaining business continuity, comprising:

The second base station serving the second multicast broadcast single frequency network MBSFN area sends indication information to the first base station serving the first MBSFN area; wherein, the first base station currently broadcasts the first multimedia broadcast multiplex to the user equipment An MBMS service is broadcast, and the indication information is used to indicate that the service currently broadcast by the second MBSFN area is the first MBMS service.

The method according to claim 21, wherein the second base station serving the second multicast broadcast single frequency network (MBSFN) area sends instruction information to the first base station serving the first MBSFN area, including:

The second base station sends a base station configuration update request message to the first base station, and the base station configuration update request message carries the indication information, or,

The second base station sends an X2 interface request message to the first base station, where the X2 interface request message carries the indication information, or,

The second base station sends indication information to the first base station through a network element device.

The method according to claim 22, wherein if the network element device is a multi-cell multicast coordination entity (MCE), the second base station sends indication information to the first base station through the network element device, including:

The second base station sends MBMS scheduling information to the first base station through the MCE, wherein the MBMS scheduling information is sent by the MCE to the first base station according to the received M2 interface establishment request message sent by the second base station. The first base station; wherein, both the M2 interface establishment request message and the MBMS scheduling information carry the indication information.

The method according to claim 22, wherein if the network element equipment includes a first multi-cell multicast coordination entity MCE, a second MCE, a first mobility management network element MME, and a second MME, the second The base station sends indication information to the first base station through a network element device, including:

The second base station sends MBMS scheduling information to the first base station through the first MCE; wherein, the MBMS scheduling information is reset by the first MCE according to the received M3 interface sent by the first MME The message is sent to the first base station, the M3 interface reset message is sent to the first MCE by the first MME according to the received indication information sent by the second MME, and the indication The information is sent by the second MME to the first MME according to the received M3 interface setup request message sent by the second MCE, and the M3 interface setup request message is sent by the second MCE according to the received M3 interface setup request message. The M2 interface establishment request message sent by the second base station is sent to the second MME; the M2 interface establishment request message, the M3 interface establishment request message, the M3 interface reset message and the MBMS scheduling information Both carry the instruction information.

The method according to any one of claims 21-24, wherein the indication information includes the service information of the service currently broadcast in the second MBSFN area, and the identity of the second base station or the second The second system frequency of the second base station.

The method according to claim 25, wherein the identifier of the second base station is used to enable the first base station to hand over the user equipment when it is determined that the user equipment leaves the first MBSFN area to said second base station;

The second system frequency of the second base station is used to enable the first base station to handover the user equipment to a target in the second MBSFN area when determining that the user equipment leaves the first MBSFN area base station.

A system for maintaining business continuity, including user equipment, characterized in that it also includes The base station according to any one of claims 1 to 7, and the base station according to any one of claims 8 to 13.