WO2011147237A1 - 多媒体广播组播业务控制信息的发送方法及装置 - Google Patents

多媒体广播组播业务控制信息的发送方法及装置 Download PDF

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Publication number
WO2011147237A1
WO2011147237A1 PCT/CN2011/073125 CN2011073125W WO2011147237A1 WO 2011147237 A1 WO2011147237 A1 WO 2011147237A1 CN 2011073125 W CN2011073125 W CN 2011073125W WO 2011147237 A1 WO2011147237 A1 WO 2011147237A1
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Prior art keywords
information
mbms service
content
service
mcch
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PCT/CN2011/073125
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English (en)
French (fr)
Inventor
王斌
苟伟
马子江
毛磊
Original Assignee
刘建
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Application filed by 刘建 filed Critical 刘建
Priority to US13/696,265 priority Critical patent/US8798657B2/en
Priority to JP2013511515A priority patent/JP5614865B2/ja
Priority to AU2011257832A priority patent/AU2011257832B2/en
Priority to RU2012149417/07A priority patent/RU2584542C2/ru
Priority to BR112012028257A priority patent/BR112012028257A2/pt
Publication of WO2011147237A1 publication Critical patent/WO2011147237A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements

Definitions

  • the present invention relates to a technology for transmitting multimedia broadcast multicast service control information, and in particular to a multicast broadcast single frequency network (MBSFN) multimedia broadcast multicast service control information transmission method and apparatus.
  • MMSFN multicast broadcast single frequency network
  • the 3rd Generation Partnership Project (3GPP) proposes Multimedia Broadcast Multicast Service (MBMS), which is a data source to multiple
  • MBMS Multimedia Broadcast Multicast Service
  • the technology of transmitting data by the target realizes the sharing of resources of the network (including the core network and the access network), and improves the utilization of network resources (especially air interface resources).
  • the MBMS service defined by 3GPP can not only realize the multicast and broadcast of plain text low-rate message classes, but also realize the broadcast and multicast of high-speed multimedia services, and provide a variety of rich video, audio and multimedia services, which undoubtedly conforms.
  • 3G, 3rd Generation third-generation
  • FIG. 1 is a schematic structural diagram of an MBSFN area in the prior art. As shown in FIG. 1, for example, one MBSFN area includes 19 cells. , eNB1 controls cells 1, 26; eNB2 controls cells 7, 8 13; eNB3 controls cells 14, 15, ... 19 . In the circle in Figure 1
  • the 19 cells constitute an MBSFN area.
  • the MBSFN synchronization transmission is performed, and the purpose is to enable the user equipment (UE, User Equipment) to obtain the corresponding combining gain when receiving, MBSFN transmission.
  • UE User Equipment
  • Each cell in the MBSFN area needs to send the same data content on the same time-frequency resource, so that the resources of each cell need to be uniformly scheduled and planned.
  • MCE Multi-cell/multicast Coordination Entity
  • the network element is used for unified scheduling and planning of radio resources. For details, refer to the international standard 3GPP 36.300 v910.
  • an MCE controls the transmission of the MBMS service in the entire MBSFN area, that is, the MCE determines the control information and service information of the MBMS service transmitted on the MBSFN subframe of the MBSFN area, and the eNB executes the MCE command to complete each control thereof.
  • the MCE configures a multicast resource (MBSFN subframe and MBSFN frame) of MBMS service (MTCH) and control signaling (MCCH) carried by an MBSFN area.
  • a plurality of eNBs (such as eNB1, eNB2, and eNB3 in FIG. 1) are configured to broadcast the multicast resources to all the cells (such as cells 1, 2 19 in FIG. 1) through the system broadcast message, and simultaneously broadcast
  • the Broadcast Multicast Service Centre (BM-SC) transmits the MBMS service data to multiple eNBs in the MBSFN area through the MBMS-GW (as shown in the figure).
  • eNB1, eNB2, eNB3) in 1. 2 is a schematic diagram of a bearer architecture of an MBMS service in the prior art.
  • a BM-SC->MBMS-GW->eNB is generally referred to as user plane data transmission, that is, used to transmit MBMS service data.
  • M MTCH transmission; BM-SC->MBMS-GW->MCE->eNB is called control plane signaling transmission, used to configure control parameters such as multicast resources, which uses system information and MCCH transmission.
  • the UE can obtain the configuration information of the MCCH in the cell by using the System Information Block (SIB 13) of the Broadcast Control Channel (BCCH, Broadcast Control Channel), for example, the MCCH Modification Period (MCCH Modification Period) in the cell. , MCCH repetition period (MCCH RP, MCCH Repeat Period) and other corresponding parameters.
  • SIB 13 System Information Block
  • BCCH Broadcast Control Channel
  • MCCH Modification Period MCCH Modification Period
  • MCCH RP MCCH repetition period
  • MCCH RP MCCH Repeat Period
  • a Multicast Traffic Channel is a logical channel.
  • An MTCH carries data of one or more services (such as a TV (TV) program called a service).
  • a service is only carried in one MTCH, and the MTCH is mapped.
  • MCH multicast channel
  • one or more MTCHs can be mapped to one or more MCHs, that is, multiple MBMS services can be mapped to one MCH.
  • the uplink feedback refers to the fact that the state feedback of the UE that is receiving/preparing to receive the MBMS service is reported by the network side or the UE itself passes the uplink feedback channel. To the network side, the network side can obtain the detailed information of the UEs that are subordinate to the UE through the information reported by the UE.
  • the typical application examples are as follows: Each eNB in the MBSFN area requires its subordinate UEs to provide feedback on the MBMS service name that it is preparing/receiving. Up (the uplink feedback procedure is triggered by the eNB;), the UE that is/preparing to receive the MBMS service will feed back the MBMS service identifier (eg, MBMS service ID, etc.) on the uplink feedback channel.
  • the MBMS service identifier eg, MBMS service ID, etc.
  • the transmission of the MBMS service requires the common transmission of control plane (control signaling) and user plane data.
  • control signaling will inform the UE of the corresponding control parameters, and direct the UE to the corresponding The location is to receive the MBMS service (ie corresponding user data) of interest.
  • the control signaling includes at least SIB2, SIB13, MCCH information, MCH Scheduling Information (MSI, MSCH Scheduling Information), also called Dynamic Scheduling Information (DSI) in the LTE system; MBMS service is through MTCH To transfer.
  • the UE can obtain the control parameters of the MBMS service (MTCH) that it is interested in by acquiring the control signaling (SIB2, SIB13, MCCH information, MSI); by these control parameters, the UE can accurately Receive the MBMS service.
  • MTCH MBMS service
  • SIB2, SIB13, MCCH information, MSI control signaling
  • the MCCH, MSI, and MTCH are transmitted in units of MBSFN Area; that is, MCCH, MSI, and MTCH are transmitted in the entire MBSFN area, where MCCH, MSI, and MTCH are transmitted by MBSFN combining technology; MBSFN is merged.
  • the technology requires that multiple cells controlled by a base station/base station transmit the same data at the same time-frequency position, so that signals transmitted by cells under control of multiple base stations/base stations will be superimposed in the air; from the perspective of receiving by the UE, It is considered that there is only one signal source, which increases the gain of reception and improves the accuracy of receiving data.
  • SIB13 is transmitted in units of cells; that is, the contents of neighboring cells SIB2 and SIB13 can be transmitted differently;
  • the MBMS control information included in the SIB2 will inform the UE of the allocation of all the multicast resources in the MBSFN area; that is, the UE will obtain the multicast resources corresponding to all the MBMS services in the MBSFN area;
  • SIB13 includes the scheduling information of the MCCH information corresponding to the MBSFN area and the scheduling information of the notification; that is, the UE learns the time-frequency position and modulation and coding mode of the MCCH information of the MBSFN area through the SIB13 (MCS, Modulation and Coding). Scheme ), and where to listen to notifications and other related control information;
  • the MCCH information includes related control information of the corresponding MBSFN area; that is, the UE can learn the related control information of the MBSFN Area corresponding thereto by reading the MCCH message, for example, all ongoing MBMS services in the MBSFN Area.
  • the MBMS service (which is The MBMS service that the network side has started to transmit, the control parameters of the ongoing MBMS service, and the resources of the MCH that it corresponds to; that is, the UE obtains one or more MCHs in the MBSFN area by acquiring the MCCH information, and each The ongoing MBMS service corresponding to the MCH, and the control parameters of these onging MBMS services (for example, parameters MBMS-SessionInfo-r9, sessionId-r9, serviceld-r9, etc.).
  • the DSI information includes specific resource scheduling information of each MTCH in the MCH.
  • the MCH includes one or more MBMS service data (such as one or more MTCHs)
  • the MBMS dynamic scheduling information is required to specifically indicate a certain The specific physical resources corresponding to the MBMS service.
  • the UE can learn the exact resource of the MBMS service through the indication of the MBMS dynamic scheduling information, thereby achieving accurate reception, and for the MCH.
  • the other multicast subframes (such as multicast subframes carrying non-MTCH1), the UE remains silent and does not receive its subframe information, thereby achieving the purpose of saving energy consumption of the UE.
  • the resources scheduled or governed by the MBMS dynamic scheduling information are defined as a dynamic scheduling period, such as 320 ms, 640 ms, and the like.
  • 3 is a schematic diagram showing the logical relationship between the setting of the existing scheduling block in the dynamic scheduling period and the MBMS service. In FIG. 3, the bold horizontal line shading indicates the scheduling block, and the other shadows indicate different MBMS services as shown in the MBMS service A.
  • MBMS service B and MBMS service C, blanks indicate no data or padding.
  • the dynamic scheduling information is to uniquely locate an MBMS service resource (StopMTCH parameter) by the service sequence (LCID parameter) and the last resource sequence number of the MBMS service; for example, as shown in FIG. 3, the MBMS service sequence is MBMS service A, The multicast sub-frame number corresponding to the last service data is #3; the next is MBMS service B, and the multicast sub-frame number corresponding to the last service data is #7; the next is MBMS service C, the last service The multicast sub-frame number corresponding to the data is #10; thus, it is possible to uniquely determine that the resource of MBMS service A is #1 ⁇ #3, the resource of MBMS service B is #3 ⁇ #7, and the resource of MBMS service C is #7 ⁇ #10.
  • each MTCH uses the logical channel ID (LCID, Logical Channel ID) and StopMTCH parameters to implement the above functions.
  • FIG. 4 is a schematic diagram of the structure of a certain MBMS service closed by the cell, as shown in Figure 4, the cell 2 in the figure indicates that the cell has a closed MBMS service; In the cell 2, for a specific MBMS service (for example, MBMS service A), the number of users receiving the MBMS service or receiving the MBMS service is lower than the threshold, and the sending of the MBMS service A in the cell 2 is closed; For a UE camping in cell 2, the transmission of MBMS
  • MBSFN services such as service A, service B, service C, service N
  • cell 2 in FIG. 4 only indicates that service A is turned off, and other service B, service C, service N It has not been closed.
  • the UE residing in the cell 2 does not receive the MBMS service A sent from the cell 2, but has It is possible to receive information from the MBMS service A transmitted by the neighboring cell; that is, if the UE camping in the cell 2 wants to receive the information of the MBMS service A, although the UE will not be able to receive the transmission from the cell 2
  • the information of the MBMS service A but the UE may receive the information of the MBMS service A transmitted by the neighboring cell (for example, the cell 1, 3, 4, 5, 6) in the MBSFN manner. just, The quality of the signal received through the neighboring cell will be reduced to some extent.
  • one or more MBMS services can only be turned on or off in the entire MBSFN area, and some cells in the MBSFN area cannot be turned on and off, and in the MBSFN area,
  • the transmission of some MBMS services of all cells under the control of the eNB or all cells under the control of the eNB is closed, and the closed MBMS service data (MTCH) will not be in this/closed cell.
  • the transmission continues; however, how the control plane message (control signaling) on this/closed cell will be sent, and no corresponding solution is currently given.
  • the main purpose of the present invention is to provide a method and a device for transmitting multimedia broadcast multicast service control information, so that control signaling can be normally transmitted in an MBSFN area without affecting the original MBSFN merging mechanism of control signaling.
  • the effective reception of the MBMS control plane message (control signaling) by the user terminal is implemented. Further, the effective indication of the system information (SIB13) can enable the UE to know the MBMS service specifically sent by the UE, and improve the reliability of the UE receiving the MBMS service.
  • a method for transmitting control information of a multimedia broadcast multicast service includes:
  • the base station closes the MBMS service transmission of the multimedia broadcast multicast service in the cell, and sends the control plane information of the MBMS service in the cell that closes the MBMS service; wherein, in the control plane information, the system information block SIB2 content and the MCCH information are maintained.
  • the content and dynamic scheduling information DSI content are unchanged, and the SIB13 content is changed or not changed.
  • the base station closes the MBMS service in the cell, which is:
  • the base station according to the uplink feedback of the user equipment UE to which the cell belongs, the radio resource occupied by the non-MBMS service in the cell, the indication of the multi-cell/multicast coordination entity MCE, and the operation management and maintenance (OAM, Operation, Administration) And Management ) At least one condition in the unified request determines whether to close the transmission of the MBMS service.
  • the content of the SIB2 is unchanged: the base station does not change the allocation of multicast resources in the MBSFN area of the multicast broadcast single frequency network corresponding to the MBMS service after the MBMS service is sent off.
  • the MCCH information content remains unchanged: the MCCH information still includes related information of the closed MBMS service;
  • the DSI content remains unchanged: the MCCH information still includes related information of the closed MBMS service.
  • the MCCH information content remains unchanged: the MCCH information still includes session information MBMS-SessionInfo, session identifier sessionId, service identifier serviceld of the closed MBMS service;
  • the DSI content remains unchanged: the MCCH information still includes the logical channel ID of the closed MBMS service, and the stop multicast traffic channel STOP MTCH parameter.
  • the content of the SIB13 is not changed:
  • the multicast control channel MCCH scheduling information and the notification notification scheduling information are not changed, and no new control information is added in the SIB13;
  • the content of the change SIB13 is: the scheduling information of the original MCCH in the SIB13 is kept, and the content of the scheduling information of the Notification is unchanged, and the indication information that the cell has closed the MBMS service is added to the SIB13 content; the indication information includes that Disable the identification information of the MBMS service.
  • the identification information of the MBMS service that has been closed includes a service ID or a logical channel ID.
  • a device for transmitting multimedia broadcast multicast service control information where the device includes a service shutdown unit and a sending unit;
  • a service closing unit configured to close the MBMS service transmission in the cell
  • a sending unit configured to send control plane information of the MBMS service in the cell that closes the MBMS service, where, in the sent control plane information, the content of the system information block SIB2, the MCCH information content, and the dynamic scheduling information DSI are kept unchanged. , change or not change the SIB13 content.
  • the service closing unit further determines, according to the uplink feedback of the user equipment UE to which the cell belongs, the radio resource occupied by the non-MBMS service in the cell, the indication of the MCE, and the at least one condition of the request from the OAM system. Whether to close the transmission of the MBMS service.
  • the content of the keep-alive SIB2 is unchanged: after the base station closes the MBMS service, the allocation of the multicast resources in the MBSFN area corresponding to the closed MBMS service is not changed;
  • the MCCH information content remains unchanged: the MCCH information still includes related information of the closed MBMS service; the MCCH information still includes the MBMS-SessionInfo, sessionId, and serviceld of the closed MBMS service;
  • the DSI content remains unchanged: the MCCH information still includes related information about the closed MBMS service; the MCCH information still includes the logical channel ID of the closed MBMS service, and the stop multicast service channel STOP MTCH parameter .
  • the content of the SIB13 is not changed:
  • the multicast control channel MCCH scheduling information and the notification notification scheduling information are not changed, and no new control information is added in the SIB13;
  • the content of the change SIB13 is: the scheduling information of the original MCCH in the SIB13 is kept, and the content of the scheduling information of the Notification is unchanged, and the indication information that the cell has closed the MBMS service is added to the SIB13 content; the indication information includes that Disable the identification information of the MBMS service.
  • the identity information of the MBMS service that has been closed includes a service ID or a logical channel ID.
  • the base station closes the MBMS service because a certain MBMS service receiving user is less than a set threshold or other reasons, and maintains the system information block SIB2 content, MCCH information content, and dynamic scheduling when transmitting the control plane information of the MBMS service.
  • the information DSI content is unchanged, and the SIB13 in the transmitted control plane information is changed or not changed. In this way, the normal transmission of the control signaling in the MBSFN area can be ensured, and the original MBSFN merging mechanism of the control signaling is not affected, and the user is realized.
  • the terminal effectively receives MBMS control plane messages (control signaling). Further, the effective indication of the system information may enable the UE to learn the MBMS service specifically sent by the UE, and improve the reliability of the UE receiving the MBMS service.
  • FIG. 1 is a schematic structural view of a MBSFN area in the prior art
  • FIG. 2 is a schematic diagram of a MBMS service bearer architecture in the prior art
  • FIG. 3 is a schematic diagram showing the logical relationship between the setting of the existing scheduling block in the dynamic scheduling period and the MBMS service;
  • Figure 4 is a schematic structural diagram of a cell closing a certain MBMS service
  • FIG. 5 is a schematic structural diagram of an MBSFN area according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural diagram of a radio resource bearer of an MBMS service according to Embodiment 1 of the present invention
  • FIG. 7 is a schematic structural diagram of an MBSFN area according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic structural diagram of a radio resource bearer of an MBMS service according to Embodiment 2 of the present invention
  • FIG. 9 is a schematic structural diagram of a device for transmitting multimedia broadcast multicast service control information according to the present invention. detailed description
  • the basic idea of the present invention is: In the MBSFN area, when a certain MBMS service of a certain cell is turned off, the SIB2 content, MCCH information content, and dynamics should be maintained when the control plane (or control signaling) is sent.
  • the scheduling information DSI content is unchanged, changed or not changed SIB13 in the control plane information.
  • the certain MBMS service of the closed cell refers to the uplink feedback of the cell according to the UE to which it belongs, or the amount of radio resources that need to be occupied according to its Non-MBMS, or according to the indication of the MCE, or according to the OAM system.
  • One or more of the conditions are determined in the request to determine, and the transmission of one or more MBMS services in the cell is turned off.
  • the MBSFN area there may be no UEs receiving the MBMS service or the number of users receiving the MBMS service is lower than a threshold, and then some/some cells in the MBSFN are closed.
  • the transmission of some/some MBMS services The closed MB/s MBMS service data has reached the individual cell or the eNB to which the cell belongs, but the data is not transmitted on the radio side (or air interface).
  • the content of the SIB2 does not change; that is, the MBMS service is closed, and the configuration of the original multicast resource will not be affected; that is, the closed
  • the multicast resources corresponding to the MBMS service will not be released or reconfigured; likewise, the content contained in SIB2 will not be changed;
  • the content of the SIB13 is as follows:
  • SIB13 The content of SIB13 does not change; that is, the scheduling information of MCCH (including MCCH MCS, MCCH time-frequency domain resources and location, etc.), Notification scheduling information (including the time domain location of notification, etc.) will not change;
  • the content of SIB 13 is changed; specifically, the original content in SIB13 (MCCH scheduling information (including MCCH MCS, MCCH time-frequency domain resources and location, etc.), Notification scheduling information (including time domain location of notification, etc.) No change, content in SIB13
  • MCCH scheduling information including MCCH MCS, MCCH time-frequency domain resources and location, etc.
  • Notification scheduling information including time domain location of notification, etc.
  • the indication information that the cell has been closed for the MBMS service is added; the indication information may be a set or a list, and the information about the MBMS service that has been closed in the cell is included, for example, the service ID or the LCID of the closed MBMS service may be unique.
  • the identifier of the MBMS service is identified.
  • the UE can obtain the MCCH scheduling information, the notification scheduling information, and the MBMS service information that is sent off in the cell by receiving the information of the SIB13.
  • the content of the MCCH information does not change; that is, the MCCH information will include related information of the MBMS service that has been closed (for example, the scheduling information of the MBMS service); that is, the UE Information related to the transmitted MBMS service (for example, scheduling information of the MBMS service) can still be known through the MCCH information.
  • the MCCH information will be transmitted in the MBSFN combining mode.
  • the MCCH information transmission needs to ensure that all eNBs or cells in the MBSFN area send the same on the same time-frequency resource. Therefore, after the cell closes some MBMS services sent by the cell, the MCCH information of the cell does not change, and the MCCH information is also used to meet the requirements of the MBSFN merge mode, and the MCCH content is not affected in the entire MBSFN area. If the MCCH information content is changed (for example, considering the effect of the cell closing the MBMS service, the related information corresponding to the MBMS service is deleted from the MCCH information).
  • the content of two or more MCCH information will appear on the same time-frequency resource location, which will not conform to the MBSFN combined transmission mode, and will be in the same time-frequency resource for UE reception.
  • the location receives two or more MCCH information content signals; the two or more MCCH information content signals will be mutually strong interference information, which is a very large interference for the UE to receive the MCCH information, which will directly lead to Failed to receive MCCH information.
  • the content of the DSI information does not change; that is, the DSI information will include related information of the MBMS service that has been closed (for example, the MBMS service that has been sent off) Dynamic scheduling information), and has been sent off
  • the order of the MBMS service in the DSI will remain unchanged; that is, the content of the DSI information will remain the same as the content of the DSI information before the MBMS service is closed; in detail, the specific MBMS in the DSI information
  • the business scheduling sequence is also unchanged. From another point of view, in the MBSFN area, the DSI information will be transmitted in the MBSFN combining mode.
  • the DSI information needs to be transmitted in the MBSFN area to ensure that all eNBs or cells transmit the same on the same time-frequency resource. Content. Therefore, after the cell closes some MBMS services sent by the cell, since the DSI information of the cell does not change, the requirement of the MBSN merge mode of the DSI information is satisfied, and the DSI content is not affected in the entire MBSFN area.
  • the content of the DSI information is changed (for example, considering the impact of the cell closing the MBMS service, the relevant information corresponding to the MBMS service is disabled, and the scheduling order of the originally scheduled MBMS service in the DSI information is deleted or changed),
  • the content of two or more DSI information appears on the same time-frequency resource location, which does not conform to the MBSFN combined transmission mode, and will be in the same time-frequency resource location for UE reception.
  • the signals of the two or more DSI information content will be strong interference information for each other, and the UE will receive a very large interference for receiving the DSI information, and will directly The failure to receive DSI information failed.
  • FIG. 5 is a schematic structural diagram of an MBSFN area according to Embodiment 1 of the present invention.
  • an MBSFN area in the figure is composed of 7 cells, and the MBSFN area carries three MBMS services, which are MBMS service A and MBMS respectively. Service B and MBMS service C;
  • FIG. 6 is a schematic structural diagram of a radio resource bearer of an MBMS service according to Embodiment 1 of the present invention. As shown in FIG. 6, three services are correspondingly carried to the same MCH in a scheduling period, and a specific bearer mode is shown in FIG. 6. The following describes how the system side sends control plane signaling. For the content of SIB2 (considering that SIB2 contains more control parameters, only the parameters related to MBMS service bearer are listed here), as follows:
  • the MBSFN area multicast resource scheduling information (radioframeAllocationPeriod, radioframe AllocationOff set ⁇ subframe Allocation), through the above parameters, the UE will know the allocation of all multicast resources in the MBSFN area; that is, the UE will obtain all the MBMS in the MBSFN area. Multicast resources corresponding to the service;
  • Notification scheduling information ( notificationIndicator-r9 ); through the parameters of the SIB13, the UE will know the scheduling information of the MCCH information corresponding to the MBSFN area, that is, the UE will know at what time-frequency position the MCCH information is sent, and corresponding MCS; and, the UE also knows the scheduling information of the notification, that is, where the UE can receive the notification information;
  • the content of the MCCH information is as follows:
  • MBMS service A (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9); MBMS service B (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9); MBMS service C (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9) ;
  • MBMS service A (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9)
  • MBMS service B (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9)
  • MBMS service C serviceld-r9, sessionId-r9, logicalChannelIdentity-r9) ;
  • the UE will know the MBMS service list being sent in the MBSFN area. Specifically, each MBMS service being sent in the list will have a set of parameters corresponding to the MCCH information, including serviceld-r9.
  • the MCCH information includes the parameters of the MBMS service A, the MBMS service B, and the MBMS service C.
  • the UE can learn that the MBSFN area is sending three services, and each Specific parameters of the MBMS service;
  • the contents of the DSI information are as follows:
  • the DSI information will indicate the specific multicast resource location of the MBMS service being sent; the dynamic scheduling information will indicate the specific multicast resource location of each MBMS service being sent; as can also be seen from Figure 6, the dynamic scheduling information indicates MBMS.
  • the multicast subframe corresponding to service A is #1, #2, #3 subframe; the multicast subframe corresponding to MBMS service B is #3 ⁇ #7 subframe; the multicast subframe corresponding to MBMS service C Is #7 ⁇ #10 subframe; wherein the dynamic scheduling information is identified by two parameters: LCID and stop MTCH;
  • the cell 7 is about to turn off the transmission of the MBMS service B; after the cell 7 turns off the MBMS service B, the control plane signaling is sent in the following manner:
  • the content of the SIB2 does not change; the content of the SIB13 does not change.
  • the content of the MCCH information does not change; the content of the DSI information does not change.
  • FIG. 7 is a schematic structural diagram of an MBSFN area according to Embodiment 2 of the present invention. As shown in FIG. 7, it is assumed that an MBSFN area is composed of 7 cells, and the MBSFN area carries three MBMS services: MBMS service A, MBMS service B, and MBMS service C, for the sake of simplicity, assume that all three MBMS services are already in the ingoing state.
  • FIG. 8 is a schematic structural diagram of a radio resource bearer of an MBMS service according to Embodiment 2 of the present invention. As shown in FIG. 8 , it is assumed that three services correspond to the same MCH, and three services are correspondingly carried to the same MCH, and the specific bearer mode is as shown in FIG. 8 . Take The following describes how the system side sends control plane signaling.
  • SIB2 contains more control parameters, only the parameters related to MBMS service bearer are listed here), as follows:
  • the MBSFN area multicast resource scheduling information (radioframeAllocationPeriod, radioframe AllocationOff set ⁇ subframe Allocation), through the above parameters, the UE will know the allocation of all multicast resources in the MBSFN area; that is, the UE will obtain all the MBMS in the MBSFN area. Multicast resources corresponding to the service;
  • SIB13 The content of SIB13 is as follows:
  • Notification scheduling information ( notificationIndicator-r9 ); through the parameters of the SIB13, the UE will know the scheduling information of the MCCH information corresponding to the MBSFN area, that is, the UE will know at what time-frequency position the MCCH information is sent, and corresponding MCS; and, the UE also knows the scheduling information of the notification, that is, where the UE can receive the notification information;
  • the content of the MCCH information is as follows:
  • MBMS service A (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9);
  • MBMS service B (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9);
  • MBMS service C (serviceld-r9, sessionId-r9, logicalChannelIdentity-r9);
  • the UE will know the MBMS service list being sent in the MBSFN area. Specifically, each MBMS service being sent in the list will have a set of parameters corresponding to the MCCH information, including serviceld-r9.
  • the MCCH information includes the parameters of the MBMS service A, the MBMS service B, and the MBMS service C.
  • the UE can learn that the MBSFN area is sending three services, and each Specific parameters of the MBMS service;
  • the contents of the DSI information are as follows:
  • the DSI information will indicate the specific multicast resource location of the MBMS service being sent; the dynamic scheduling information will indicate the specific multicast resource location of each MBMS service being sent; as can also be seen from Figure 8, the dynamic scheduling information indicates MBMS.
  • the multicast subframe corresponding to service A is #1, #2, #3 subframe; the multicast subframe corresponding to MBMS service B is #3 ⁇ #7 subframe; the multicast subframe corresponding to MBMS service C Is #7 ⁇ #10 subframe; wherein the dynamic scheduling information is identified by two parameters: LCID and stop MTCH;
  • the cell 7 will close the transmission of the MBMS service B; after the cell 7 closes the MBMS service B, the transmission of the control plane information will keep the content of the SIB2 unchanged, the content of the MCCH information does not change, and the DSI information The content does not change, and the content of the SIB13 changes.
  • the MBMS service indicating that the cell 7 has been closed is added; that is, the indication information is added in the SIB13, indicating that the MBMS service B in the cell 7 has been Closed is sent; the changed SIB13 is as follows:
  • Notification scheduling information ( notificationIndicator-r9 );
  • the sent MBMS service list has been closed; Through the parameters of the SIB 13, the UE will know the scheduling information of the MCCH information corresponding to the MBSFN area, that is, the UE will know at what time-frequency position the MCCH information is sent, and the corresponding MCS; The schedule information of the notification is known, that is, the UE can receive the notification information. Meanwhile, the UE can know the MBMS service list that the cell has closed by sending the MBMS service list that has been closed.
  • control signaling can be normally transmitted in the MBSFN area without affecting the original MBSFN combining mechanism of the control signaling, thereby realizing an effective method for the UE to receive the MBMS control plane message (control signaling).
  • the effective indication of the system information may enable the UE to learn the MBMS service specifically sent by the UE, and improve the reliability of the UE receiving the MBMS service.
  • the apparatus for transmitting control information of the multimedia broadcast multicast service of the present invention includes a service closing unit 90 and a transmitting unit 91.
  • the service closing unit 90 is configured to close the sending of the MBMS service in the cell.
  • the sending unit 91 is configured to send control plane information of the MBMS service in the cell that closes the MBMS service, and keep the content of the system information block SIB2, the MCCH information content, and the dynamic scheduling information DSI unchanged in the transmitted control plane information, and change Or do not change the SIB13 in the transmitted control plane information.
  • the service closing unit is further configured according to the uplink feedback of the user equipment UE to which the cell belongs, the radio resource occupied by the non-MBMS service in the cell, the indication of the multi-cell/multicast coordination entity MCE, and the operation management and maintenance.
  • OAM Operation, Administration and Management
  • At least one of the system's requests determines whether to close the transmission of the MBMS service.
  • the content of the SIB2 is not changed as follows: after the base station turns off the MBMS service, the allocation of the multicast resources in the MBSFN area corresponding to the closed MBMS service is not changed;
  • the content of the MCCH information is kept as follows: the MCCH information still includes information about the closed MBMS service, that is, the MCCH information still includes the MBMS-SessionInfo, sessionId, and serviceld of the closed MBMS service.
  • the MCCH information still includes related information of the closed MBMS service, that is, the MCCH information still includes the logical channel ID of the closed MBMS service, and the stop multicast service channel STOP MTCH parameter .
  • the multicast control channel MCCH scheduling information and the notification notification scheduling information are not changed, and no new control information is added in the SIB13;
  • the SIB13 in the control plane information that is sent by the foregoing change is: the scheduling information of the original MCCH in the SIB13 is kept, the content of the scheduling information of the notification is unchanged, and the indication information that the cell has closed the MBMS service is added to the SIB13 content;
  • the information includes identification information of the MBMS service that has been closed in the cell.
  • the identification information of the MBMS service that has been closed above includes a service ID or a logical channel ID.
  • the apparatus for transmitting multimedia broadcast multicast service control information of the present invention is designed to implement the foregoing method for transmitting multimedia broadcast multicast service control information of the present invention, and the implementation functions of the foregoing processing units may be referred to the foregoing. Understand the relevant description of the method.
  • the functions of the various processing units in the figures may be implemented by a program running on a processor or by a specific logic circuit.

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Abstract

本发明公开了一种多媒体广播组播业务控制信息的发送方法，包括：基站关闭小区中的多媒体广播组播业务MBMS业务发送，并发送MBMS业务的控制面信息；其中，在控制面信息中，保持***信息块SIB2内容、MCCH信息内容以及动态调度信息DSI内容均不变，变更或不变更SIB13内容。本发明同时公开了一种多媒体广播组播业务控制信息的发送装置，包括：业务关闭单元，用于关闭小区中的MBMS业务发送；发送单元，用于在该关闭MBMS业务的小区中发送MBMS业务的控制面信息，其中，在所发送的控制面信息中，保持***信息块SIB2内容、MCCH信息内容、动态调度信息DSI内容不变，变更或不变更SIB13内容。本发明提高了UE接收MBMS业务的可靠性。

Description

多媒体广播组播业务控制信息的发送方法及装置 技术领域
本发明涉及多媒体广播组播业务控制信息的发送技术， 尤其涉及一种 多播广播单频网 （ MBSFN , Multicast Broadcast Single Frequency Network ) 多媒体广播组播业务控制信息的发送方法及装置。 背景技术
随着互联网的迅猛发展和大屏幕多功能手机的普及， 出现了大量移动 数据多媒体业务和各种高带宽多媒体业务， 例如： 视频会议、 电视广播、 视频点播、 视频广告、 网上教育、 互动游戏等， 上述多媒体业务不仅满足 了移动用户不断上升的业务需求， 同时也为移动运营商带来了新的业务增 长点。 这些移动数据多媒体业务要求多个用户能够同时接收相同数据， 与 一般的数据业务相比， 具有数据量大、 持续时间长、 时延敏感等特点。 为 了有效地利用移动网络资源， 第三代合作伙伴计划 （3GPP, 3rd Generation Partnership Project ) 提出了多媒体广播组播业务 （ MBMS , Multimedia Broadcast Multicast Service ),该业务是一种从一个数据源向多个目标传送数 据的技术， 实现了网络（包括核心网和接入网） 资源的共享， 提高了网络 资源 （尤其是空中接口资源） 的利用率。 3GPP定义的 MBMS业务不仅能 够实现纯文本低速率的消息类的组播和广播， 还能够实现高速多媒体业务 的广播和组播， 提供了多种丰富的视频、 音频和多媒体业务， 这无疑顺应 了未来移动数据发展的趋势， 为第三代（3G, 3rd Generation )数字通信的 发展提供了更好的业务前景。
目前， 在长期演进（LTE, Long Term Evolution ) ***中引入了 MBMS 业务。 MBMS业务在***中通过多播控制信道（MCCH, Multicast Control Channel )承载控制信令以及通过多播业务信道（MTCH, Multicast Traffic Channel )承载 MBMS业务数据进行传输。 MCCH和 MTCH是以 MBSFN 区域（ MBSFN Area )进行区域划分的， 其中 MBSFN Area是由一系列 d、区 组成。 具体来说， 一个 MBSFN区域包括 1个或多个由基站（ eNB )控制下 的小区； 图 1为现有技术中 MBSFN区域的结构示意图， 如图 1所示， 例如 一个 MBSFN区域包括 19个小区， 其中 eNBl控制小区 1、 2 6; eNB2 控制小区 7、 8 13; eNB3控制小区 14、 15、 ... 19。 图 1中圓圈内的
19个小区构成了一个 MBSFN区域。
考虑到现有技术在整个 MBSFN Area中发送 MMBS业务的控制信令和 业务数据将进行 MBSFN 同步发送， 其目的是使得用户设备（UE, User Equipment )在接收时可以获得相应的合并增益， MBSFN发射需要 MBSFN area 内各个小区在相同的时频资源上发送相同的数据内容， 这样就需要对 各个小区的资源进行统一的调度和规划， 目前现有技术中使用的是多小区 / 多播协调实体（MCE, Multi-cell/multicast Coordination Entity ) 网元来进行 无线资源的统一调度和规划， 具体可参考国际标准 3GPP 36.300 v910。
具体来说， 一个 MCE控制整个 MBSFN区域的 MBMS业务的发送， 即： MCE决定该 MBSFN区域的 MBSFN子帧上发送的 MBMS业务的控制 信息和业务信息， eNB执行 MCE的指令，完成其控制下各个小区的 MBMS 业务的控制信息和业务信息的发射。
MCE配置一个 MBSFN区域所承载的 MBMS业务（ MTCH )和控制信 令（ MCCH ) 的多播资源 （ MBSFN subframe和 MBSFN frame )。 其覆盖下 的多个 eNB (如图 1中的 eNBl、 eNB2、 eNB3 )通过***广播消息， 将这 些多播资源配置到所有的小区中 （如图 1中的小区 1、 2 19 ), 同时广 播组播业务中心 （BM-SC, Broadcast Multicast Service Centre )将 MBMS 业务数据也通过 MBMS-GW发送到这个 MBSFN区域的多个 eNB中（如图 1中的 eNBl、 eNB2、 eNB3 )。 图 2 现有技术中 MBMS业务承载架构的逻 辑示意图， 如图 2所示， 通常， 将 BM-SC->MBMS-GW->eNB称之为用户 面数据传输， 即用于传输 MBMS 业务数据， 釆用 MTCH 传输； 而将 BM-SC->MBMS-GW->MCE->eNB 称之为控制面信令传输， 用于配置多播 资源等控制参数， 其釆用***信息和 MCCH传输。
UE通过广播控制信道 ( BCCH, Broadcast Control Channel ) 的***信 息块（ System Information Block ) SIB 13即可获知该小区中 MCCH的配置信 息， 例如该小区中 MCCH的修改周期 （MCCH MP, MCCH Modification Period )、 MCCH的重复周期（ MCCH RP, MCCH Repeat Period )等相应参 数。
多播业务信道 ( MTCH, Multicast Traffic Channel )是逻辑信道， 一个 MTCH承载一个或者多个业务（比如一个电视（TV ) 节目叫做一个业务） 的数据， 一个业务仅承载在一个 MTCH 中， MTCH被映射到多播信道 ( MCH, Multicast Channel )上进行传输， 一个或者多个 MTCH可以映射 到一个或者多个 MCH上， 即多个 MBMS 业务可以映射到一个 MCH上。
MBMS业务传输过程中，上行反馈的应用也是现有技术中重要的功能； 上行反馈是指由网络侧触发或 UE 自行通过上行反馈信道， 将正在 /准备接 收 MBMS业务的 UE的某些状态属性上报给网络侧；通过 UE上报的信息， 网络侧可以获知其下属的 UE 目前较为详细的信息； 典型的应用例为： MBSFN area中各个 eNB要求其下属 UE将其正在 /准备接收的 MBMS业务 名称反馈上来（由 eNB触发上行反馈流程；)， 正在 /准备接收 MBMS业务的 UE将会在上行反馈信道将其正在 /准备接收 MBMS业务标识（例如 MBMS 业务 ID等）进行反馈。
MBMS业务的传输需要控制面 （控制信令）和用户面数据的共同传输 来实现。 其中， 控制信令将会告知 UE相应的控制参数， 指引 UE到相应的 位置去接收其感兴趣的 MBMS 业务（即相应的用户数据）。 这种控制信令 在 LTE***中至少包含 SIB2、 SIB13、 MCCH信息、 MCH调度信息（MSI, MCH Scheduling Information ) , 也称之为动态调度信息 （DSI , Dynamic scheduling information ) ); MBMS业务是通过 MTCH来进行传输的。 也就 是说， UE通过获取这个 /些控制信令（SIB2、 SIB13、 MCCH信息、 MSI ), 就可以获知其感兴趣的 MBMS业务（MTCH ) 的控制参数； 通过这些控制 参数， UE便可以准确地接收该 MBMS业务。
其中， MCCH、 MSI和 MTCH是以 MBSFN Area为单位进行发送的； 即， MCCH、 MSI以及 MTCH将会在整个 MBSFN area中进行发送， 其中 MCCH, MSI和 MTCH釆用 MBSFN合并技术进行发送； MBSFN合并技术 要求多个基站 /基站控制下的小区在相同的时频位置上发送相同的数据， 这 样多个基站 /基站控制下的小区发射的信号， 将会在空中进行叠加； 从 UE 接收的角度， 认为只有一个信号来源， 增加了接收的增益， 提高了接收数 据的准确性。 而对于 SIB2、 SIB13是以小区为单位进行发送的； 即， 相邻 小区 SIB2、 SIB13的内容可以发送的不相同；
进一步来说， SIB2中所包含的 MBMS控制信息将会告知 UE MBSFN 区域中所有多播资源的分配情况； 也就是说， UE将会获得该 MBSFN区域 中所有 MBMS业务所对应的多播资源；
SIB13 中包含 MBSFN 区域所对应 MCCH 信息的调度信息以及 notification的调度信息； 也就是说， UE通过 SIB13将会获知 MBSFN区域 的 MCCH信息所发送的时频位置和调制及编码方式（ MCS, Modulation and Coding Scheme ), 以及在何处监听 notification等相关控制信息；
MCCH信息包含与其对应 MBSFN area的相关控制信息； 也就是说， UE通过读取 MCCH消息就可以获知与其对应的 MBSFN Area的相关控制 信息，例如，该 MBSFN Area中所有正在播放 ( ongoing )的 MBMS业务（即 网络侧已经开始发送的 MBMS业务）、 ongoing的 MBMS service的控制参 数以及其所对应 MCH的资源情况； 也就是说， UE通过获取 MCCH信息将 会获知该 MBSFN区域中一条 /多条 MCH,以及每条 MCH所对应的 ongoing MBMS 业务， 和这些 onging MBMS 业务的控制参数 （例如参数 MBMS-SessionInfo-r9、 sessionId-r9、 serviceld-r9等)。
DSI信息包含 MCH中每个 MTCH具体的资源调度信息， 具体说来， 由于 MCH中包含了一个或多个 MBMS业务数据（比如一个或多个 MTCH ), 需要通过 MBMS动态调度信息来具体指明某一 MBMS业务所对应的具体 物理资源。 这样， UE在接收到某一特定 MBMS业务时（比如该 UE感兴 趣的 MBMS业务 MTCH1 ), 就可以通过 MBMS动态调度信息的指示获知 该 MBMS业务的确切资源 , 从而实现准确接收， 而对于 MCH中的其它多 播子帧 （比如承载非 MTCH1 的多播子帧）， UE保持静默状态， 不接收其 子帧信息， 从而实现了 UE节省能耗的目的。 现有公开技术中， MBMS动 态调度信息所调度或管辖的资源在时间长度上被定义为动态调度周期 ( Schedule period ), 比如 320ms、 640ms等。 图 3为现有调度块在动态调度 周期中的设置与 MBMS业务的逻辑关系示意图， 图 3中加粗的横线阴影表 示调度块， 其它阴影表示不同的 MBMS业务如图中的 MBMS service A、 MBMS service B和 MBMS service C, 空白部分表示没有数据或填充位。 动 态调度信息是通过业务顺序 （LCID参数） 以及 MBMS业务所处的最末一 个资源序号来唯一定位一个 MBMS业务资源 （StopMTCH参数）； 例如， 如图 3所示， MBMS业务顺序是 MBMS service A, 其最末业务数据所对应 多播子帧序号为 #3; 接下来是 MBMS service B , 其最末业务数据所对应多 播子帧序号为 #7; 接下来是 MBMS service C, 其最末业务数据所对应多播 子帧序号为 #10; 这样就可以唯一确定 MBMS service A的资源是 #1~#3、 MBMS service B的资源是 #3~#7、 MBMS service C的资源是 #7~#10。 在动 态调度信息中， 每个 MTCH釆用逻辑信道 ID ( LCID, Logical Channel ID ) 和 StopMTCH两个参数来实现上述功能。
对于 MBSFN area中某一具体 MBMS业务（ MTCH ) 来说， 将会在整 个 MBSFN area内釆用 MBSFN合并技术进行传输； 而在实际应用中， 某一 MBMS业务在整个 MBSFN area中进行发送有时是并不需要的, 例如, 在 MBSFN area中的某个 /些小区中可能并没有 UE在接收该 MBMS业务或接 收该 MBMS业务的用户数低于门限值； 这时将会关闭 MBSFN are中某个 / 某些小区的某一 /些 MBMS 业务的传输； 图 4 为小区关闭某一 /些 MBMS 业务的结构示意图， 如图 4所示， 图中小区 2表示该小区有关闭的 MBMS 业务； 考虑到小区 2中对于某一具体 MBMS业务（例如 MBMS service A ) 并没有 UE在接收该 MBMS业务或接收该 MBMS业务的用户数低于门限 值， 此时关闭小区 2中 MBMS service A的发送； 这样对于驻留在小区 2中 UE来说， 将不会接收到来自小区 2的 MBMS service A的发送； 也就是说， 驻留在小区 2中的 UE, 将不会接收到由小区 2所发送的 MBMS service A, 小区 2关闭了 MBMS service A的发送。 另夕卜， 如果这个 MBSFN区域有多 个 MBSFN业务, 如 service A , service B, service C, service N, 图 4 中的小区 2仅表示关闭了 service A, 而其他 service B, service C , service N 并没有被关闭。
考虑到 MBMS业务（例如 MBMS service A )是釆用 MBSFN合并技术 在整个 MBSFN area中进行同步发送的，驻留在小区 2中的 UE虽然接收不 到来自小区 2所发送的 MBMS service A, 但是有可能接收到来自邻小区所 发送的 MBMS service A的信息； 也就是说， 驻留在小区 2中的 UE如果想 要接收 MBMS service A的信息， 虽然该 UE将无法接收到来自小区 2所发 送的 MBMS service A的信息， 但是该 UE有可能接收到邻小区 （例如小区 1、 3、 4、 5、 6 )釆用 MBSFN方式发送的 MBMS service A的信息。 只是， 通过邻小区接收到的信号质量将会有一定程度的降低。
可以看出，在现有技术中，一个或多个 MBMS业务只能在整个 MBSFN 区域内开启或关闭，而不能做到这个 MBSFN区域内的部分小区的开启和关 闭， 同时在 MBSFN area中， 若关闭了 eNB控制下的某个 /些小区或某一 / 些 eNB控制下的所有小区的某一 /些 MBMS业务的发射， 关闭的 MBMS业 务数据 ( MTCH )将不会在这个 /些关闭的小区上继续发送； 但是对于这个 / 些关闭的小区上的控制面消息 （控制信令）将如何发送， 目前并没有给出 相应的解决方案。 发明内容
有鉴于此， 本发明的主要目的在于提供一种多媒体广播组播业务控制 信息的发送方法及装置， 使得控制信令可以在 MBSFN区域中正常地发送， 不影响控制信令的原有 MBSFN合并机制， 实现了用户终端对于 MBMS控 制面消息（控制信令）的有效接收。 进一步的， 通过***信息（SIB13 ) 的 有效指示， 可以使得 UE获知该小区具体发送的 MBMS业务， 提高了 UE 接收 MBMS业务的可靠性。
为达到上述目的， 本发明的技术方案是这样实现的：
一种多媒体广播组播业务控制信息的发送方法， 包括：
基站关闭小区中的多媒体广播组播业务 MBMS业务发送， 并在该关闭 MBMS业务的小区中发送 MBMS业务的控制面信息； 其中， 在所述控制面 信息中， 保持***信息块 SIB2 内容、 MCCH信息内容以及动态调度信息 DSI内容均不变， 变更或不变更 SIB13内容。
优选地， 所述基站关闭小区中的 MBMS业务， 为：
所述基站根据所述小区所属用户设备 UE 的上行反馈、 所述小区中非 MBMS业务占用的无线资源、 多小区 /多播协调实体 MCE的指示， 以及来 自运行管理和维护 ( OAM, Operation, Administration and Management ) 系 统的请求中的至少一个条件来决定是否关闭该 MBMS业务的发送。
优选地， 所述保持 SIB2的内容不变为： 所述基站关闭 MBMS业务发 送后， 不改变该关闭 MBMS业务所对应的多播广播单频网 MBSFN区域中 多播资源的分配情况；
所述保持 MCCH信息内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS业务的相关信息；
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的相关信息。
优选地，所述保持 MCCH信息内容不变为： 所述 MCCH信息中仍包含 所关闭的 MBMS业务的会话信息 MBMS-SessionInfo、 会话标识 sessionId、 业务标识 serviceld;
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的逻辑信道 ID、 停止多播业务信道 STOP MTCH参数。
优选地， 所述不变更 SIB13内容为：
多播控制信道 MCCH的调度信息、通知 Notification的调度信息均不发 生变更， 且在 SIB13中不增加新的控制信息；
所述变更 SIB13内容为： 保持 SIB13中原有 MCCH的调度信息、 通知 Notification 的调度信息内容不变， 在 SIB13 内容中增加所述小区已关闭 MBMS业务的指示信息；所述指示信息包含该小区中已经关闭 MBMS业务 的标识信息。
优选地， 所述已经关闭 MBMS业务的标识信息包含业务 ID或逻辑信 道 ID。
一种多媒体广播组播业务控制信息的发送装置， 所述装置包括业务关 闭单元和发送单元； 其中，
业务关闭单元， 用于关闭小区中的 MBMS业务发送； 发送单元， 用于在该关闭 MBMS业务的小区中发送 MBMS业务的控 制面信息， 其中， 在所发送的控制面信息中， 保持***信息块 SIB2内容、 MCCH信息内容、动态调度信息 DSI内容不变， 变更或不变更 SIB13内容。
优选地，所述业务关闭单元进一步根据所述小区所属用户设备 UE的上 行反馈、 所述小区中非 MBMS业务占用的无线资源、 MCE的指示， 以及 来自 OAM***的请求中的至少一个条件来决定是否关闭该 MBMS业务的 发送。
优选地， 所述保持 SIB2的内容不变为： 所述基站关闭 MBMS业务发 送后， 不改变该关闭 MBMS业务所对应的 MBSFN区域中多播资源的分配 情况；
所述保持 MCCH信息内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS业务的相关信息； 所述 MCCH信息中仍包含所关闭的 MBMS业务 的 MBMS-SessionInfo、 sessionId、 serviceld;
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的相关信息； 所述 MCCH信息中仍包含所关闭的 MBMS业务的逻辑 信道 ID、 停止多播业务信道 STOP MTCH参数。
优选地， 所述不变更 SIB13内容为：
多播控制信道 MCCH的调度信息、通知 Notification的调度信息均不发 生变更， 且在 SIB13中不增加新的控制信息；
所述变更 SIB13内容为： 保持 SIB13中原有 MCCH的调度信息、 通知 Notification 的调度信息内容不变， 在 SIB13 内容中增加所述小区已关闭 MBMS业务的指示信息；所述指示信息包含该小区中已经关闭 MBMS业务 的标识信息。
优选地， 所述已经关闭 MBMS业务的标识信息包含业务 ID或逻辑信 道 ID。 本发明中， 基站由于某一 MBMS业务接收用户少于设定阔值或其他原 因而关闭该 MBMS业务， 而在发送 MBMS业务的控制面信息时保持*** 信息块 SIB2内容、 MCCH信息内容、 动态调度信息 DSI内容不变， 变更或 不变更所发射的控制面信息中的 SIB13 ,这样，可以保证控制信令在 MBSFN 区域中的正常发送，不影响控制信令的原有 MBSFN合并机制， 实现了用户 终端对于 MBMS控制面消息（控制信令）的有效接收。 进一步的， 通过系 统信息的有效指示， 可以使得 UE获知该小区具体发送的 MBMS业务， 提 高了 UE接收 MBMS业务的可靠性。 附图说明
图 1为现有技术中 MBSFN区域的结构示意图；
图 2 现有技术中 MBMS业务承载架构的逻辑示意图；
图 3为现有调度块在动态调度周期中的设置与 MBMS业务的逻辑关系 示意图；
图 4 为小区关闭某一 /些 MBMS业务的结构示意图；
图 5为本发明实施例一中的 MBSFN区域的结构示意图；
图 6 为本发明实施例一中 MBMS业务无线资源承载的结构示意图； 图 7为本发明实施例二中的 MBSFN区域的结构示意图；
图 8为本发明实施例二中 MBMS业务无线资源承载的结构示意图； 图 9为本发明多媒体广播组播业务控制信息的发送装置的组成结构示 意图。 具体实施方式
本发明的基本思想是： 本发明在 MBSFN区域中， 当关闭某小区的某一 /些 MBMS业务后， 发送控制面 （或称之为控制信令） 时应当保持 SIB2内 容、 MCCH信息内容、 动态调度信息 DSI内容不变， 变更或不变更所发射 的控制面信息中的 SIB13。 这里， 所谓关闭小区的某一 /些 MBMS业务， 是 指该小区根据其所属 UE的上行反馈、 或根据其 Non-MBMS需要占用的无 线资源多少， 或根据 MCE的指示， 或根据来自 OAM***的请求中判断条 件的一个或多个来进行判断， 关闭小区中某一 /些 MBMS业务的发送。 例如 在 MBSFN area中的某个 /些小区中可能并没有 UE在接收该 MBMS业务或 接收该 MBMS业务的用户数低于门限值，这时将会关闭 MBSFN are中某个 /某些小区的某一 /些 MBMS业务的传输。关闭的某一 /些 MBMS业务数据已 经达到各个小区或该小区所属的 eNB , 只是在无线侧 （或空口）上并没有 将这些数据发射出去。 关于如何确定待关闭的 MBMS业务， 可参见本申请 人于 2010年 5月 19日申请的， 发明名称为 "一种实现 MBMS业务调度的 方法及***" 专利申请文件中的相关记载。
为使本发明的目的、 技术方案和优点更加清楚明白， 以下举实施例并 参照附图， 对本发明进一步详细说明。
本发明中， 当小区关闭其所发送的某一 /些 MBMS业务后， SIB2的内 容不发生变更； 即， 关闭 MBMS业务， 将不会影响原有多播资源的配置； 也就是说， 关闭的 MBMS业务所对应的多播资源不会被释放或重新配置； 同样， SIB2所包含的内容将不会发生变更；
本发明中， 当小区关闭其所发送的某一 /些 MBMS业务后， SIB13的内 容为如下方案：
a )SIB13的内容不发生变更；即， MCCH的调度信息（包括 MCCH MCS、 MCCH 时频域资源和位置等）、 Notification 的调度信息 （包括 notification 的时域位置等）都将不发生变更；
b ) SIB 13的内容发生变更； 具体的， SIB13中原有内容（MCCH的调 度信息 （包括 MCCH MCS、 MCCH时频域资源和位置等）、 Notification的 调度信息 （包括 notification的时域位置等）都不发生变更， 在 SIB13内容 中增加该小区已关闭 MBMS业务的指示信息； 该指示信息可以是一个集合 或者是一个列表， 其中包含该小区中已经关闭 MBMS业务的信息（例如已 关闭 MBMS业务的 service ID或 LCID等其他可以唯一标识该 MBMS业务 的标识）； 换句话来说， UE通过接收 SIB13的信息， 可以获得 MCCH调度 信息、 notification调度信息以及在该小区被关闭发送的 MBMS业务信息； 本发明中， 当小区关闭其所发送的某一 /些 MBMS业务后， MCCH信 息的内容不发生变更； 即， MCCH信息将会包括已关闭发送的 MBMS业务 的相关信息（例如该 MBMS业务的调度信息）； 也就是说， UE通过 MCCH 信息仍然可以获知到已关闭发送的 MBMS业务的相关信息（例如该 MBMS 业务的调度信息）。 从另一个角度来说， 在 MBSFN区域内， MCCH信息将 釆用 MBSFN合并方式进行发送， 也就是说， MCCH信息的发送需要保证 在 MBSFN区域内所有 eNB或小区在相同的时频资源上发送相同的内容； 因此， 当小区关闭其所发送的某一 /些 MBMS业务后， 该小区 MCCH信息 不发生变更， 同样满足了 MCCH信息釆用 MBSFN合并方式的要求， 并不 影响 MCCH内容在整个 MBSFN区域内的发送； 因为，如果 MCCH信息内 容发生了变更（例如考虑到小区关闭 MBMS 业务的影响， 将关闭 MBMS 业务所对应的相关信息从 MCCH信息中删除）。 此时， 在 MBSFN区域中， 相同时频资源位置上就会出现两个或多个 MCCH信息的内容， 这将不符合 MBSFN合并发射方式， 且对于 UE接收来说， 将会在同一时频资源位置接 收到两个或多个 MCCH信息内容的信号；该两个或多个 MCCH信息内容的 信号将会互为强干扰信息，对于 UE接收 MCCH信息来说是非常大的干扰， 将会直接导致接收 MCCH信息失败。
本发明中， 当小区关闭其所发送的某一 /些 MBMS业务后， DSI信息的 内容不发生变更； 即 DSI信息将会包括已关闭发送的 MBMS业务的相关信 息 （例如已关闭发送的 MBMS 业务的动态调度信息）， 且已关闭发送的 MBMS业务在 DSI中的顺序也将保持不变； 也就是说， DSI信息的内容将 会和关闭某一 /些 MBMS业务之前的 DSI信息的内容保持相同； 详细的说， DSI信息中具体的 MBMS业务调度顺序也是不发生变更的。 从另一个角度 来说， 在 MBSFN区域内， DSI信息将釆用 MBSFN合并方式进行发送， 也 就是说， DSI信息的发送需要保证在 MBSFN区域内所有 eNB或小区在相 同的时频资源上发送相同的内容。 因此， 当小区关闭其所发送的某一 /些 MBMS业务后， 由于该小区 DSI信息不发生变更， 因此满足了 DSI信息釆 用 MBSFN合并方式的要求，并不影响 DSI内容在整个 MBSFN区域内的发 送； 因为， 如果 DSI信息内容发生了变更（例如考虑到小区关闭 MBMS业 务的影响，将关闭 MBMS业务所对应的相关信息从 DSI信息中删除或变更 DSI信息中原有调度 MBMS业务的调度顺序）， 此时， 在 MBSFN区域中， 相同时频资源位置上就会出现两个或多个 DSI信息的内容， 这样不符合 MBSFN合并发射方式， 且对于 UE接收来说， 将会在同一时频资源位置接 收到两个或多个 DSI信息内容的信号； 这两个或多个 DSI信息内容的信号 将会互为强干扰信息， 对于 UE接收 DSI信息来说， 将是非常大的干扰， 将会直接导致接收 DSI信息失败。
为了更好的说明本发明， 下面结合实施例进行描述。
实施例一
图 5为本发明实施例一中的 MBSFN区域的结构示意图， 如图 5所示， 图中的 MBSFN区域由 7小区组成， 该 MBSFN区域中承载了 3个 MBMS 业务， 分别是 MBMS service A、 MBMS service B和 MBMS service C; 为简 化起见， 假设 3个 MBMS业务都已经处于 ongoing状态。 图 6为本发明实 施例一中 MBMS业务无线资源承载的结构示意图， 如图 6所示， 在一个调 度周期内， 3个业务对应承载到同一 MCH, 具体承载方式如图 6所示。 以 下说明***侧是如何发送控制面信令的。 对于 SIB2的内容（考虑到 SIB2包含较多控制参数， 此处仅罗列出与 MBMS业务承载相关的参数）， 具体如下：
MBSFN区域多播资源调度信息 （radioframeAllocationPeriod、 radioframe AllocationOff set ^ subframe Allocation ) 通过上述参数, UE将会获知 MBSFN区域中所有多播资源的分配情况； 也就说， UE将会获得该 MBSFN区域中所有 MBMS业务所对应的多播资 源；
对于 SIB13的内容， 具体如下：
MCCH调度信息 （ mcch-Config-r9 );
notification调度信息 ( notificationIndicator-r9 ); 通过 SIB13的参数， UE将会获知该 MBSFN区域所对应的 MCCH信 息的调度信息， 也就是说 UE将会获知该 MCCH信息在什么时频位置上发 送， 以及相应的 MCS; 并且， UE还会获知 notification的调度信息， 即 UE 在何处可以接收到 notification信息；
关于 MCCH信息的内容， 具体如下：
MBSFN区域内所有正在发送的 MBMS业务列表
(即已经 session start的 MBMS业务）；
MBMS service A ( serviceld-r9、 sessionId-r9 、 logicalChannelIdentity-r9 ); MBMS service B ( serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9 ); MBMS service C ( serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9 ); 通过 MCCH信息的内容， UE将会获知 MBSFN 区域中正在发送的 MBMS业务列表； 具体的， 列表中每个正在发送的 MBMS业务在 MCCH 信息中将会有一组参数对应进行表示， 其中包括 serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9；根据实施例 1 , MCCH信息将会包含 MBMS service A、 MBMS service B、 MBMS service C的参数， UE通过 MCCH信息可以 获知该 MBSFN区域正在发送 3个业务，以及各个 MBMS业务的具体参数； 关于 DSI信息的内容， 具体如下：
DSI信息将会指明正在发送的 MBMS业务具体的多播资源位置； 动态 调度信息将会指明每个正在发送的 MBMS业务具体的多播资源位置； 通过 图 6也可以看出， 动态调度信息指明 MBMS service A所对应的多播子帧是 #1、 #2、 #3子帧； MBMS service B所对应的多播子帧是 #3~#7子帧； MBMS service C所对应的多播子帧是 #7~#10子帧；其中动态调度信息是通过 LCID 和 stop MTCH两个参数进行标识的；
如图 5所示， 4叚设小区 7将要关闭 MBMS service B的发送； 小区 7关 闭 MBMS service B后，控制面信令将以下述方式发送： SIB2的内容不发生 变化； SIB13 的内容不发生变化； MCCH信息的内容不发生变化； DSI 信息的内容不发生变化。
实施例二
图 7为本发明实施例二中的 MBSFN区域的结构示意图， 如图 7所示， 假设某 MBSFN区域由 7小区组成， 该 MBSFN区域中承载了 3个 MBMS 业务： MBMS service A、 MBMS service B和 MBMS service C, 为简化起见， 假设 3个 MBMS业务都已经处于 ongoing状态。 图 8为本发明实施例二中 MBMS业务无线资源承载的结构示意图， 如图 8所示， 假设 3个业务对应 同一 MCH, 3个业务对应承载到同一 MCH, 具体承载方式如图 8所示。 以 下说明***侧如何发送控制面信令。
关于 SIB2的内容（考虑到 SIB2包含较多控制参数， 此处仅罗列出与 MBMS业务承载相关的参数）， 具体如下：
MBSFN区域多播资源调度信息 （radioframeAllocationPeriod、 radioframe AllocationOff set ^ subframe Allocation ) 通过上述参数, UE将会获知 MBSFN区域中所有多播资源的分配情况； 也就说， UE将会获得该 MBSFN区域中所有 MBMS业务所对应的多播资 源；
关于 SIB13的内容， 具体如下：
MCCH调度信息 （ mcch-Config-r9 );
notification调度信息 ( notificationIndicator-r9 ); 通过 SIB13的参数， UE将会获知该 MBSFN区域所对应的 MCCH信 息的调度信息， 也就是说 UE将会获知该 MCCH信息在什么时频位置上发 送， 以及相应的 MCS; 并且， UE还会获知 notification的调度信息， 即 UE 在何处可以接收到 notification信息；
关于 MCCH信息的内容， 具体如下：
MBSFN区域内所有正在发送的 MBMS业务列表
(即已经 session start的 MBMS业务）；
MBMS service A ( serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9 ); MBMS service B ( serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9 ); MBMS service C ( serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9 );
通过 MCCH信息的内容， UE将会获知 MBSFN 区域中正在发送的 MBMS业务列表； 具体的， 列表中每个正在发送的 MBMS业务在 MCCH 信息中将会有一组参数对应进行表示， 其中包括 serviceld-r9、 sessionId-r9、 logicalChannelIdentity-r9；根据实施例 1 , MCCH信息将会包含 MBMS service A、 MBMS service B、 MBMS service C的参数， UE通过 MCCH信息可以 获知该 MBSFN区域正在发送 3个业务，以及各个 MBMS业务的具体参数； 关于 DSI信息的内容， 具体如下：
DSI信息将会指明正在发送的 MBMS业务具体的多播资源位置； 动态 调度信息将会指明每个正在发送的 MBMS业务具体的多播资源位置； 通过 图 8也可以看出， 动态调度信息指明 MBMS service A所对应的多播子帧是 #1、 #2、 #3子帧； MBMS service B所对应的多播子帧是 #3~#7子帧； MBMS service C所对应的多播子帧是 #7~#10子帧；其中动态调度信息是通过 LCID 和 stop MTCH两个参数进行标识的；
如图 7所示， 小区 7将要关闭 MBMS service B的发送； 小区 7关闭 MBMS service B后， 控制面信息的发送将会保持 SIB2的内容不发生变化、 MCCH信息的内容不发生变化、 DSI信息的内容不发生变化， 而使 SIB13 的内容发生变化， 具体的， 在原有 SIB13的内容中， 增加指示小区 7 已关 闭发送的 MBMS业务； 即在 SIB13中增加指示信息，指明小区 7中 MBMS service B已经关闭发送了； 改变后的 SIB13具体如下：
MCCH调度信息 （ mcch-Config-r9 );
notification调度信息 ( notificationIndicator-r9 );
已关闭发送的 MBMS业务列表； 通过 SIB 13的参数， UE将会获知该 MBSFN区域所对应的 MCCH信 息的调度信息， 也就是说 UE将会获知该 MCCH信息在什么时频位置上发 送， 以及相应的 MCS; 并且， UE还会获知 notification的调度信息， 即 UE 在何处可以接收到 notification信息； 同时， 通过已关闭发送的 MBMS业务 列表， UE可以获知该小区已关闭发送的 MBMS业务列表。
釆用本发明的方法，控制信令可以在 MBSFN区域中正常的发送，不影 响控制信令的原有 MBSFN合并机制， 实现了 UE对于 MBMS控制面消息 (控制信令）接收的有效方法。 进一步的， 通过***信息的有效指示， 可 以使得 UE获知该小区具体发送的 MBMS业务，提高了 UE接收 MBMS业 务的可靠性。
图 9为本发明多媒体广播组播业务控制信息的发送装置的组成结构示 意图， 如图 9所示， 本发明多媒体广播组播业务控制信息的发送装置包括 业务关闭单元 90和发送单元 91 ; 其中，
业务关闭单元 90, 用于关闭小区中的 MBMS业务的发送；
发送单元 91 , 用于在该关闭 MBMS业务的小区中发送 MBMS业务的 控制面信息， 所发送的控制面信息中， 保持***信息块 SIB2内容、 MCCH 信息内容、 动态调度信息 DSI 内容不变， 变更或不变更所发射的控制面信 息中的 SIB13。
优选地，所述业务关闭单元进一步根据所述小区所属用户设备 UE的上 行反馈、所述小区中非 MBMS业务占用的无线资源、 多小区 /多播协调实体 MCE的指示， 以及来自运行管理和维护（OAM, Operation, Administration and Management ) ***的请求中的至少一个条件来决定是否关闭该 MBMS 业务的发送。
上述保持 SIB2的内容不变为： 所述基站关闭 MBMS业务发送后， 不 改变该关闭 MBMS业务所对应的 MBSFN区域中多播资源的分配情况； 上述保持 MCCH信息内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS业务的相关信息， 即所述 MCCH信息中仍包含所关闭的 MBMS业 务的 MBMS-SessionInfo、 sessionId、 serviceld;。
上述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的相关信息， 即所述 MCCH信息中仍包含所关闭的 MBMS业务的逻 辑信道 ID、 停止多播业务信道 STOP MTCH参数。
上述不变更所发射的控制面信息中的 SIB13为：
多播控制信道 MCCH的调度信息、通知 Notification的调度信息均不发 生变更， 且在 SIB13中不增加新的控制信息；
上述变更所发射的控制面信息中的 SIB13为：保持 SIB13中原有 MCCH 的调度信息、 通知 Notification的调度信息内容不变， 在 SIB13内容中增加 所述小区已关闭 MBMS业务的指示信息； 所述指示信息包含该小区中已经 关闭 MBMS业务的标识信息。
上述已经关闭 MBMS业务的标识信息包含业务 ID或逻辑信道 ID。 本领域技术人员应当理解， 本发明多媒体广播组播业务控制信息的发 送装置是为实现前述的本发明多媒体广播组播业务控制信息的发送方法而 设计的， 上述各处理单元的实现功能可参照前述方法的相关描述而理解。 图中的各处理单元的功能可通过运行于处理器上的程序而实现， 也可通过 具体的逻辑电路而实现。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种多媒体广播组播业务控制信息的发送方法， 其特征在于， 所述 方法包括：
基站关闭小区中的多媒体广播组播业务 MBMS业务发送， 并在该关闭 MBMS业务的小区中发送 MBMS业务的控制面信息； 其中， 在所述控制面 信息中， 保持***信息块 SIB2 内容、 MCCH信息内容以及动态调度信息 DSI内容均不变， 变更或不变更 SIB13内容。
2、 根据权利要求 1所述的方法， 其特征在于， 所述基站关闭小区中的 MBMS业务， 为：
所述基站根据所述小区所属用户设备 UE 的上行反馈、 所述小区中非 MBMS业务占用的无线资源、 多小区 /多播协调实体 MCE的指示， 以及来 自运行管理和维护 OAM ***的请求中的至少一个条件来决定是否关闭该 MBMS业务的发送。
3、 根据权利要求 1所述的方法， 其特征在于， 所述保持 SIB2的内容 不变为： 所述基站关闭 MBMS业务发送后， 不改变该关闭 MBMS业务所 对应的多播广播单频网 MBSFN区域中多播资源的分配情况；
所述保持 MCCH信息内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS业务的相关信息；
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的相关信息。
4、 根据权利要求 3所述的方法， 其特征在于， 所述保持 MCCH信息 内容不变为： 所述 MCCH信息中仍包含所关闭的 MBMS业务的会话信息 MBMS-SessionInfo、 会话标识 sessionld. 业务标识 serviceld;
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的逻辑信道 ID、 停止多播业务信道 STOP MTCH参数。
5、 根据权利要求 1至 4任一项所述的方法， 其特征在于， 所述不变更 SIB13内容为：
多播控制信道 MCCH的调度信息、通知 Notification的调度信息均不发 生变更， 且在 SIB13中不增加新的控制信息；
所述变更 SIB13内容为： 保持 SIB13中原有 MCCH的调度信息、 通知 Notification 的调度信息内容不变， 在 SIB13 内容中增加所述小区已关闭 MBMS业务的指示信息；所述指示信息包含该小区中已经关闭 MBMS业务 的标识信息。
6、 根据权利要求 5 所述的方法， 其特征在于， 所述已经关闭 MBMS 业务的标识信息包含业务 ID或逻辑信道 ID。
7、 一种多媒体广播组播业务控制信息的发送装置， 其特征在于， 所述 装置包括业务关闭单元和发送单元； 其中，
业务关闭单元， 用于关闭小区中的 MBMS业务发送；
发送单元， 用于在该关闭 MBMS业务的小区中发送 MBMS业务的控 制面信息， 其中， 在所发送的控制面信息中， 保持***信息块 SIB2内容、 MCCH信息内容、动态调度信息 DSI内容不变， 变更或不变更 SIB13内容。
8、 根据权利要求 7所述的装置， 其特征在于， 所述业务关闭单元进一 步根据所述小区所属用户设备 UE的上行反馈、 所述小区中非 MBMS业务 占用的无线资源、 MCE的指示， 以及来自 OAM***的请求中的至少一个 条件来决定是否关闭该 MBMS业务的发送。
9、 根据权利要求 7所述的装置， 其特征在于， 所述保持 SIB2的内容 不变为： 所述基站关闭 MBMS业务发送后， 不改变该关闭 MBMS业务所 对应的 MBSFN区域中多播资源的分配情况；
所述保持 MCCH信息内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS业务的相关信息； 所述 MCCH信息中仍包含所关闭的 MBMS业务 的 MBMS-SessionInfo、 sessionId、 serviceld;
所述保持 DSI内容不变为：所述 MCCH信息中仍包含所关闭的 MBMS 业务的相关信息； 所述 MCCH信息中仍包含所关闭的 MBMS业务的逻辑 信道 ID、 停止多播业务信道 STOP MTCH参数。
10、 根据权利要求 7至 9任一项所述的装置， 其特征在于， 所述不变 更 SIB13内容为：
多播控制信道 MCCH的调度信息、通知 Notification的调度信息均不发 生变更， 且在 SIB13中不增加新的控制信息；
所述变更 SIB13内容为： 保持 SIB13中原有 MCCH的调度信息、 通知 Notification 的调度信息内容不变， 在 SIB13 内容中增加所述小区已关闭 MBMS业务的指示信息；所述指示信息包含该小区中已经关闭 MBMS业务 的标识信息。
11、 根据权利要求 10所述的装置， 其特征在于， 所述已经关闭 MBMS 业务的标识信息包含业务 ID或逻辑信道 ID。
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