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 PDFInfo
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- 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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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- 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
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/696,265 US8798657B2 (en) | 2010-05-26 | 2011-04-21 | Method and device for transmitting multimedia broadcast multicast service control information |
JP2013511515A JP5614865B2 (ja) | 2010-05-26 | 2011-04-21 | マルチメディア放送マルチキャストサービス制御情報の送信方法及び装置 |
AU2011257832A AU2011257832B2 (en) | 2010-05-26 | 2011-04-21 | Method and device for transmitting multimedia broadcast multicast service control information |
RU2012149417/07A RU2584542C2 (ru) | 2010-05-26 | 2011-04-21 | Способ и устройство передачи информации управления службы широкого и группового мультимедийного вещания |
BR112012028257A BR112012028257A2 (pt) | 2010-05-26 | 2011-04-21 | método para transmissão de informação de controle de servico de difusão/multidifusão de multimídia (multimedia broadcast multicast service control information -mbms) e dispositivo para transmissão de informação de controle de serviço de difusão/multidifusão de multimídia, compreendendo uma unidade de interrupção de serviço e uma unidade de transmissão |
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CN201010186933.6A CN102264032B (zh) | 2010-05-26 | 2010-05-26 | 多媒体广播组播业务控制信息的发送方法及装置 |
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JP (1) | JP5614865B2 (zh) |
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HK (1) | HK1165163A1 (zh) |
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BR112012028257A2 (pt) | 2017-03-14 |
CN102264032A (zh) | 2011-11-30 |
RU2012149417A (ru) | 2014-05-27 |
HK1165163A1 (zh) | 2012-09-28 |
JP5614865B2 (ja) | 2014-10-29 |
CN102264032B (zh) | 2016-02-10 |
AU2011257832B2 (en) | 2014-05-29 |
US20130055318A1 (en) | 2013-02-28 |
RU2584542C2 (ru) | 2016-05-20 |
JP2013526815A (ja) | 2013-06-24 |
AU2011257832A1 (en) | 2012-12-20 |
US8798657B2 (en) | 2014-08-05 |
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