WO2017166900A1 - Method for receiving multimedia broadcast multicast service, and terminal, base station and storage medium - Google Patents

Method for receiving multimedia broadcast multicast service, and terminal, base station and storage medium Download PDF

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Publication number
WO2017166900A1
WO2017166900A1 PCT/CN2017/070913 CN2017070913W WO2017166900A1 WO 2017166900 A1 WO2017166900 A1 WO 2017166900A1 CN 2017070913 W CN2017070913 W CN 2017070913W WO 2017166900 A1 WO2017166900 A1 WO 2017166900A1
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Prior art keywords
mbms
control information
area
service
neighboring
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PCT/CN2017/070913
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French (fr)
Chinese (zh)
Inventor
许辉
马子江
吕永
卢忱
王亚英
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中兴通讯股份有限公司
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Publication of WO2017166900A1 publication Critical patent/WO2017166900A1/en

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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

Definitions

  • the present invention relates to the field of communications, and in particular to a method for receiving a multimedia broadcast multicast service, a terminal, a base station, and a storage medium.
  • the technologies to improve vehicle safety are mainly divided into passive safety technology and active safety technology.
  • Passive safety technology is used to protect people inside and outside the vehicle after accidents.
  • Active safety technology is used to prevent and reduce accidents in vehicles and avoid injuries.
  • Active safety technology is the focus of modern vehicle safety technology development. And trends.
  • the communication-based collision warning system realizes real-time information interaction between the vehicle, the vehicle and the roadside infrastructure by using advanced wireless communication technology and a new generation of information processing technology, and informs each other of the current state (including the position and speed of the vehicle). Acceleration, driving route) and learned road environment information, collaboratively aware of road hazard conditions, timely providing a variety of collision warning information to prevent road traffic safety accidents, and become a new way for countries to solve road traffic safety problems. .
  • V2X Vehicle to Everything
  • V2X Provides vehicle information through sensors, vehicle terminals and electronic tags mounted on vehicles.
  • Vehicles and vehicles (V2V) and vehicles are used by various communication technologies.
  • V2P Vehicle to Pedestrian
  • V2I Vehicle to Infrastructure
  • LTE Long Time Evolution
  • the roadside communication unit RSU (Road Side Unit) can receive the vehicle request, ensure the vehicle accesses the Internet, and has the function of a gateway; in addition, it also has the functions of data calculation, storage and forwarding.
  • DSRC Dedicated Short Range Communication
  • LTE Long Term Evolution
  • 802.11P is responsible for physical layer
  • MAC Medium Access Control technology
  • 1609 is responsible for the upper specification.
  • LTE-based V2X technology has just begun to be discussed and there are no standards.
  • the LTE V2X technology discussed by the 3GPP in the related art includes: the RSU can be implemented by a stationary UE or an eNB, and the V2V/V2I/V2P may be implemented by using a PC5 interface or a Uu interface, where the PC5 interface refers to an air interface of the device to the device D2D, and the Uu interface Refers to the air interface of the UE to the eNB.
  • FIG. 1 is an architecture diagram of transmitting V2X services through the Uu interface in the related art.
  • the system architecture for transmitting V2X services through the Uu interface is shown in FIG. 1 , where E-UTRAN is in the LTE network. Base station.
  • the 3rd Generation Partnership Project (3GPP) proposes a Multimedia Broadcast Multicast Service (MBMS), which is a data source.
  • MBMS Multimedia Broadcast Multicast Service
  • the technology of transmitting data by multiple target terminals realizes 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).
  • 3GPP proposes a research topic of single-cell MBMS in LTE-A of R13, in which a single-cell MBMS service is transmitted on a physical downlink shared channel PDSCH.
  • Adoption of MBMS services in 3GPP networks The Temporary Mobile Group Identity (TMGI) is allocated by the Broadcast Multicast-Service Centre (BM-SC).
  • BM-SC Broadcast Multicast-Service Centre
  • the application server notifies the UE of relevant service description information through application layer signaling: such as TMGI, service start time, and the like.
  • SC-PTM Single Cell-Point To Multipoint
  • PDSCH Physical Downlink Shared Channel
  • MBSFN Multimedia Broadcast Single Frequency Network
  • the access network is determined by the Multicell/Multicast Coordination Entity (MCE).
  • MBSFN or SC-PTM sends broadcast services on the air interface.
  • the traffic safety service generally targets multiple vehicles in a certain area.
  • the downlink transmission using broadcast is an efficient means. According to the simulation evaluation, it is difficult to meet the capacity requirements of the V2X service by using unicast transmission.
  • the effective area of a specific V2X service is generally small, and the MBSFN area to be divided when transmitting in the MBSFN mode is generally small, such as 7 cells or smaller.
  • High-speed movement of vehicles that transmit V2X services may change the MBSFN area or cell frequently.
  • the vehicle (or UE) enters the new MBSFN area, it needs to read the SIB13, the Multicast Control Channel (MCCH), and the Multicast Channel (MCH) scheduling information (MCH Scheduling Information, For example, MSI), obtain the configuration information of the required V2X service, and then read the required V2X service.
  • FIG. 2 is a schematic diagram of the VMS system based on the MBMS in the related art, where each module or device passes the interface.
  • Information communication and interaction including: Uu, S1-MME, M3, S6a, M1, S-11, Sm, S1-u, SGimb, SGmb, Rx, SG, VC1, MB2-C (control plane), VMB2- U (user plane), each of the above interfaces is an interface type common to the field, and details are not described herein again.
  • the system architecture for transmitting V2X services using MBMS is shown in Figure 2.
  • the delay requirement is within 100ms.
  • 3GPP uses MBMS to carry broadcast V2X services.
  • the UE changes the broadcast area due to mobility, the existing MBMS Business receiving process cannot be guaranteed
  • the 100 ms delay requirement may cause the V2X service to fail to receive.
  • the embodiment of the invention provides a method for receiving a multimedia broadcast multicast service, a terminal, a base station, and a storage medium, so as to at least solve the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large.
  • a method for receiving a multimedia broadcast multicast service including: acquiring MBMS control information of a MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell; and according to the MBMS control information Receive MBMS services of adjacent MBMS areas.
  • the camped cell belongs to one or more MBMS areas, and/or the neighbor MBMS area includes one or more MBMS areas.
  • the MBMS area uses the multimedia broadcast single frequency network MBSFN mode and/or the single cell point-to-multipoint SC-PTM mode to send the MBMS service.
  • the camped cell is a cell that sends an MBMS service in a unicast mode.
  • the adjacent MBMS area is adjacent to one or more MBMS areas covered by the resident cell.
  • the MBMS control information of the neighboring MBMS area of the camped cell of the terminal includes at least one of: acquiring the MBMS control information from the system information block SIB of the camping cell; Obtaining the MBMS control information in an MBSFN area configuration message of the cell; obtaining the MBMS control information by using dedicated signaling.
  • the method further includes: reading the required MBMS service in the camping cell.
  • the MBMS service required for reading in the camping cell includes: reading at least one of the following parameter information of the neighboring MBMS area in the camping cell: multicast control channel MCCH information, multicast Information scheduling information MSI, single cell multicast control channel SC-MCCH information; reading required multicast traffic channel MTCH or single cell multicast traffic channel SC-MTCH service data according to the parameter information; wherein, the required The MBMS service is an MBMS service that the terminal is receiving or waiting to receive.
  • receiving the MBMS service of the neighboring MBMS area according to the MBMS control information includes: determining whether the MBMS service content or the SC-PTM service content of the adjacent MBMS area includes the required MBMS service; When yes, the required MBMS service is received according to the MBMS control information.
  • the method further includes: performing required MBMS services received in the adjacent MBMS area and required to be read in the resident cell The MBMS services are merged or discarded.
  • the MBMS control information of the neighboring MBMS area is obtained by at least one of the following manners: receiving control information of a neighboring MBMS area provided by the multi-cell/multicast cooperative entity MCE for the camping cell; Control information of a neighboring MBMS area acquired by the base station eNB of the camping cell and the eNB of the neighboring MBMS area through the X2 interface; and the eNB acquiring the neighboring MBMS area to the terminal by using radio resource control RRC signaling Control information of the transmitted adjacent MBMS area.
  • the camped cell is an edge cell serving the terminal between adjacent MBMS areas.
  • the MBMS control information includes at least one of the following: a system message block SIB13, an SIB15, an SIB20, and a multicast control channel MCCH information.
  • a method for receiving another multimedia broadcast multicast service including: acquiring an MBMS control message of a neighboring MBMS area of a cell under the control of a base station And transmitting, by the base station, the MBMS control information to the terminal, where the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the neighboring MBMS area.
  • the MBMS control information of the neighboring MBMS area of the camping cell is acquired in at least one of the following: when receiving the request for requesting the MBMS control information of the neighboring MBMS area; When the MBMS region where the MBMS region is switched; when the MBMS control information of the neighboring MBMS region changes; when the MBMS control information of the neighboring MBMS region is periodically transmitted by the camping cell; When the MBMS control information of the MBMS area is indicated.
  • a terminal for receiving a multimedia broadcast multicast service including: an obtaining module configured to acquire MBMS control of a MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell
  • the receiving module is configured to receive the MBMS service of the adjacent MBMS area according to the MBMS control information.
  • a base station including: an obtaining module, configured to acquire MBMS control information of a neighboring MBMS area of a cell under the control of the base station; and a sending module configured to be in a cell under the jurisdiction of the base station Sending the MBMS control information to the terminal, where the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
  • the acquiring module acquires MBMS control information of a neighboring MBMS area of a cell managed by the base station: when receiving a request for requesting MBMS control information of a neighboring MBMS area When the switching occurs in the MBMS area where the terminal is located; when the MBMS control information of the neighboring MBMS area changes; the MBMS control information of the neighboring MBMS area is periodically transmitted by the camping cell; When indicating an indication of receiving MBMS control information of the neighboring MBMS area.
  • a storage medium which is an embodiment of the present invention.
  • the provided computer storage medium stores a computer program for performing the above-described receiving method of the multimedia broadcast multicast service.
  • the technical solution of the embodiment of the present invention is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area.
  • Receiving the MBMS service can avoid the extra delay of receiving the MBMS service when the UE moves to the adjacent MBMS area, and solves the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large, thereby achieving the reduction of the MBMS service.
  • the effect of transmission delay is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area.
  • FIG. 1 is a structural diagram of transmitting a V2X service through a Uu port in the related art
  • FIG. 2 is a schematic diagram of a VMS system based on MBMS in the related art
  • FIG. 3 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention
  • FIG. 4 is a flowchart of another method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a receiving apparatus for a multimedia broadcast multicast service according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of another apparatus for receiving a multimedia broadcast multicast service according to an embodiment of the present invention.
  • Figure 8 is a flow chart showing an example 2 according to the present invention.
  • Example 9 is a schematic flow chart of Example 3 according to the present invention.
  • Figure 10 is a flow chart showing an example 4 of the present invention.
  • FIG. 11 is a schematic diagram of a system architecture in accordance with an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention, as shown in FIG. The process includes the following steps:
  • Step S302 Obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell.
  • Step S304 receiving an MBMS service of an adjacent MBMS area according to the MBMS control information.
  • the MBMS control information of the MBMS area of the adjacent multimedia broadcast multicast service of the terminal camped cell is obtained; the MBMS service of the adjacent MBMS area is received according to the MBMS control information, and the MBMS service can be avoided by receiving the MBMS service in the adjacent MBMS area. Because the UE moves to the adjacent MBMS area, the additional delay of receiving the MBMS service is solved, which solves the problem that the delay of receiving the MBMS service when the UE moves is too large in the related art, thereby achieving the effect of reducing the transmission delay of the MBMS service.
  • the MBMS control information may be, but is not limited to, a System Information Block (SIB), an SIB15, an SIB20, or a Multicast Control Channel (MCCH) information.
  • SIB System Information Block
  • MCCH Multicast Control Channel
  • the current cell where the terminal UE is located may belong to one or more MBMS areas, where each MBMS area may send MBMS in MBSFN mode.
  • each MBMS area may send MBMS in MBSFN mode.
  • SC-PTM SC-PTM to send MBMS services.
  • the current cell where the UE is located may not belong to any MBMS area, that is, the cell sends the MBMS service in a unicast mode, such as a V2X service.
  • the neighboring MBMS area refers to an MBMS area that is different from the cell in which the UE is located, that is, the neighboring MBMS area is different from the MBMS area of the cell in which the UE is located.
  • the MBMS control information of the neighboring MBMS area is obtained.
  • the information may be obtained by the UE in the following manner: the UE reads the SIB of the current cell, the control information of the current MBMS area, and obtains the control information by using dedicated signaling.
  • the UE may read the MBMS service of the neighboring MBMS area in the current cell.
  • the embodiment may further include:
  • the UE reads the MCCH content (or SC-MCCH) of the neighboring MBMS area, if its content includes that it is receiving or interested in receiving one or some MBMS services;
  • the UE further reads an MBMS Traffic Channel (MTCH, or SC-MTCH) of the neighboring MBMS area, thereby obtaining content that it is receiving or interested in receiving one or some MBMS services, the interested service content. Can be receiving or waiting to be received;
  • MTCH MBMS Traffic Channel
  • SC-MTCH MBMS Traffic Channel
  • the UE is in the current cell, if the content of the MBMS service is being received, the UE also obtains the content of the same MBMS service in the neighboring MBMS area, and the UE may perform processing, such as merging or discarding, as needed.
  • FIG. 4 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention. As shown in 4, the process includes the following steps:
  • S404 Send MBMS control information to the terminal in a cell managed by the base station;
  • the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
  • the MBMS control information of the neighboring MBMS area of the cell under the control of the base station may be acquired, but not limited to:
  • the MBMS control information of the neighboring MBMS area is periodically transmitted by the camping cell.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
  • a terminal for receiving a multimedia broadcast multicast service is also provided.
  • the device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 5 is a diagram of a terminal for receiving a multimedia broadcast multicast service according to an embodiment of the present invention.
  • the apparatus includes: an obtaining module 50 configured to acquire MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell; and a receiving module 52 configured to receive according to MBMS control information.
  • MBMS service in the adjacent MBMS area.
  • FIG. 6 is a structural block diagram of a receiving apparatus of a multimedia broadcast multicast service according to an embodiment of the present invention, which may be configured on a network side device, such as a base station.
  • the apparatus includes: an obtaining module 60 configured to acquire a base station.
  • the sending module 62 is configured to send the MBMS control information to the terminal in the cell managed by the base station; wherein the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
  • the obtaining, by the acquiring module 60, the MBMS control information of the neighboring MBMS area of the cell under the control of the base station includes:
  • the MBMS control information of the neighboring MBMS area is periodically sent by the camping cell;
  • the device included in this embodiment includes: a terminal device, and an access network device.
  • the terminal device includes the following: an in-vehicle unit OBU, a roadside unit RSU, and a user equipment UE (if there is no special description, the UE appearing in this embodiment represents one or more of the foregoing terminal devices), and the terminal device acquires a neighboring broadcast area ( Configuration information of the MBSFN area or the SC-PTM cell, and obtaining the required V2X service according to the configuration information;
  • the access network device may include an eNB, an MCE.
  • the eNB is responsible for the air interface signaling of the V2X service and the signaling between the MCE and the MCE, and receiving/transmitting the V2X service in the air interface;
  • the MCE is responsible for configuring the radio resource of the V2X service and determining the MBMS transmission mode (MBSFN or SC-PTM).
  • the MCE may also be responsible for sending neighboring WTRUs to the eNB through the M2 interface. Control information of the broadcast area, the eNB broadcasts control information of the received adjacent broadcast area on the air interface.
  • This embodiment also describes a method for reducing broadcast delay by using the above apparatus, including:
  • Embodiment 1 The MCE transmits control information of a neighboring broadcast area to an eNB through an M2 interface, and the eNB broadcasts control information of the received adjacent broadcast area through an air interface.
  • An MCE is responsible for the radio resource configuration of one or more adjacent MBSFN areas. To avoid interference between adjacent MBSFN areas, the MCE deploys services in the adjacent MBSFN area to different MBSFN resources (may be different MBSFN wireless). Frames can also be different MBSFN subframes).
  • the adjacent MBSFN area refers to the area where there is no overlapping area between the MBSFN areas, and the cells in the edge of the MBSFN area are adjacent; in order to reduce the control plane delay of the adjacent MBSFN area, the adjacent area may be adjacent.
  • the overlapping area is deployed between the MBSFN areas, and the configuration information of multiple MBSFN areas is transmitted in the overlapping cell (of course, V2X service data of multiple MBSFN areas is also transmitted), such as SIB13, MCCH message, MSI (MCH Scheduling Infomation) and the like.
  • Step 1 The eNB obtains configuration information of the neighboring MBSFN area, and the MCE sends configuration information including the adjacent MBSFN area to the eNB.
  • Solution 1 The MCE sends an M2 SETUP RESPONSE message to the eNB, and the MCH SETUP RESPONSE message includes the “MCCH related BCCH Configuration data per MBSFN area” cell, that is, the content of the SIB13; and considers the macro diversity effect of the MBSFN transmission, the UE in the edge cell of the MBSFN area Information about neighboring MBSFN areas may be received, for example, MCCH and MTCH signals to adjacent MBSFN area may be introduced (note: although it can be received, but cannot be decoded correctly, because the UE does not know the resource location of the specific information), except for SIB13.
  • the UE needs to obtain the information of the adjacent broadcast area, and first needs to obtain the SIB13 information of the adjacent MBSFN area, according to the above description.
  • the SIB13 content is determined by the MCE and sent to the eNB, so the MCE may send the SIB13 information of the adjacent MBSFN area to the current eNB;
  • the MCE only needs to send the specific V2X service in each MBSFN area (through the TMGI identifier), and the MCE only needs to send the SIB13 of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area. It may be defined that when the same V2X service exists in the adjacent MBSFN area, the MCE sends the corresponding SIB13, otherwise it does not need to be sent.
  • the MCE may send the SIB13 related information only in the edge cell when transmitting the SIB13 information of the neighboring MBSFN area to the eNB, and the eNB receives the SIB13 related information of the adjacent area, only in the MBSFN area.
  • the edge cell sends; the UE receives the SIB13 information of the neighboring area, and can determine that the UE is in the edge cell of the MBSFN area.
  • Solution 2 The MCE sends the MBS scheduling information (SCHEDULING INFORMATION) to the eNB, where the MCCH information of the adjacent MBSFN area is included.
  • MBS scheduling information (SCHEDULING INFORMATION)
  • the MCE Since the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity), the MCE only needs to send the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, in the adjacent MBSFN. When the same V2X service exists in the area, the MCE sends the corresponding MBMS SCHEDULING INFORMATION, otherwise it does not need to be sent.
  • the MCE sends a trigger strip of the adjacent MBSFN area control information to the eNB.
  • the device includes at least one of the following: the eNB requests that the control information of the neighboring MBSFN area changes, and the other network element indicates or periodically sends the indication, such as a Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • Step 2 The eNB broadcasts control information of the adjacent MBSFN area on the air interface.
  • the eNB has two implementation schemes:
  • Solution 1 The eNB receives the M2 SETUP RESPONSE message including the MCCH related BCCH Configuration data per MBSFN area of the adjacent MBSFN area, that is, the SIB13 information, and the eNB broadcasts the SIB13 of the adjacent MBSFN area in the current cell. ,
  • the eNB may send the SIB13 of the adjacent MBSFN area in the SIB13 of the current cell,
  • the eNB adds the SIB13 of the adjacent MBSFN area in the current MBSFNAreaConfiguration message, such as adding the SIB13 information including the adjacent MBSFN area for each TMGI,
  • the eNB sends the SIB13 information of the neighboring area through the dedicated RRC signaling.
  • the dedicated RRC signaling refers to the unicast RRC signaling sent by the eNB to the UE when the UE is in the RRC-Connected mode.
  • the eNB receives the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area from the M2, that is, the MBSFNAreaConfiguration information, and the eNB may send the air interface in the air interface by using the following three methods: 1) sending through the SIB13; or 2) transmitting through the MBSFNAreaConfiguration; or 3) Transmission by dedicated RRC signaling.
  • Step 3 The UE receives control information of the adjacent MBSFN area and further receives the required V2X service.
  • the UE adopts the following different processing methods according to different control information received:
  • the UE receives the SIB13 of the neighboring MBSFN area: the UE moves to the edge cell of the MBSFN area, and the UE further receives the required MCCH information, MSI, and V2X service data according to the received SIB13, that is, the UE in the edge cell can receive Two or more MBSFN area transmissions
  • the UE application layer may discard the received repeated service data as needed.
  • the UE may continue to receive the required V2X service data, and during the mobile process. Keep V2X business uninterrupted.
  • the UE receives the MBSFNAreaConfiguration of the neighboring MBSFN area: the UE moves to the edge cell of the MBSFN area, and the UE further receives the required MSI and V2X service data according to the received MBSFNAreaConfiguration, that is, the UE in the edge cell can receive two or
  • the UE receives the dedicated signaling: the UE moves to the MBSFN area edge cell, and the UE may include the SIB13, MBSFNAreaConfiguration or MSI of the adjacent MBSFN area according to the content of the dedicated signaling, when the UE moves to another MBSFN area.
  • the UE can continue to receive the required V2X service data.
  • the MSI of the adjacent MBSFN area refers to a mapping relationship between the TMGI and the V2X service (TMGI) and the LCID (Logical Channel Identifier) corresponding to the V2X service in the current MBSFN area.
  • the MCCH information and the MBSFNAreaConfiguration information belong to the same concept.
  • Embodiment 2 The eNB exchanges control information of the adjacent broadcast area through the X2 port, and the eNB broadcasts control information of the adjacent area in the air interface.
  • eNB1 is located in MBSFN area1
  • eNB2 is located in MBSFN area2
  • MBSFN area1 and MBSFN area2 are adjacent.
  • the eNBs 1 and 2 are configured to exchange the MBSFN area control information through the X2 interface, and the UE may request, switch, and change the control information of the adjacent MBSFN area, and other network sections. Points (such as MCE, or MME, etc.) indicate or periodically interact.
  • the control information of the interaction between the eNBs 1, 2 includes at least one of the following: SIB13, MCCH information, MSI. It should be noted that if the interactive content is an MSI, it is assumed that the same V2X service exists in the adjacent MBSFN area, and the UE is known. The mapping relationship between the TMGI corresponding to the service and the same V2X service (TMGI) and LCID.
  • the eNB After acquiring the control information of the neighboring MBSFN area, the eNB sends the information to the UE in the local area, such as by using the SIB13, the MCCH information, or the dedicated RRC signaling;
  • the UE After receiving the control information of the neighboring MBSFN area, the UE obtains the required V2X service data according to the requirement (such as the UE moves to the adjacent MBSFN area), and the V2X service being received is not interrupted during the UE mobile process.
  • Embodiment 3 The terminal requests control information of a neighboring broadcast area, and acquires required service data according to the obtained control information.
  • the implementation process includes:
  • Step 1 The UE requests control information of a neighboring broadcast area
  • the UE requests control information of the adjacent area in at least one of the following manners:
  • the access layer AS requests, for example, the UE sends RRC signaling to the eNB, and requests the required control information in the RRC signaling, for example, the UE indicates the required control information to the eNB through the MBMSInterestIndication;
  • the eNB may obtain control information of the adjacent area by using at least one of the following methods:
  • the non-access stratum NAS requests the UE to send NAS signaling, such as attachRequest, TAU, serviceRequest, and other NAS signaling to the MME (Mobility Management Entity), and instruct the required control information in the NAS signaling;
  • NAS signaling such as attachRequest, TAU, serviceRequest, and other NAS signaling
  • MME Mobility Management Entity
  • the MME After receiving the request, the MME obtains the required control information by using at least one of the following methods:
  • Application layer/service layer request the UE sends a request to the application server AS through application layer signaling, and indicates the required control information in the request.
  • the AS forwards the request to the MCE and/or the eNB over the 3GPP network.
  • Step 2 The UE receives the required neighboring area control information
  • the UE can obtain the required control information by using at least one of the following methods:
  • the third step the UE receives the required V2X service data according to the adjacent area control information.
  • the UE moves to the adjacent MBSFN area and receives the required V2X service data according to the acquired control information.
  • Embodiment point 4 modifying the MBMS-related periodic configuration parameters
  • the minimum MCCH Repetition period 320ms can be reduced to 10ms
  • the MBMS bearer corresponding to the V2X service has been established in the adjacent MBSFN area, and the maximum time for the UE to move to the adjacent MBSFN area to obtain the required V2X service is:
  • reducing the above cycle parameters may increase the air interface load.
  • the present embodiment is described by taking an MBSFN area as an example.
  • the method in this embodiment can also be applied to other broadcast areas, such as SC-PTM (Single Cell-Point To Multipoint), CBS (Cell Broadcast Service), and the like.
  • SC-PTM Single Cell-Point To Multipoint
  • CBS Cell Broadcast Service
  • the broadcast area if used in other broadcast areas, the corresponding control information needs to be modified accordingly.
  • the MCCH information is SC-MCCH information in the SC-PTM
  • the SIB13 corresponds to the SIB20 in the SC-PTM.
  • the method of this embodiment The application is not limited to SIB13 or SIB20, but also SIB15 or a new SIB.
  • the car network V2X service is taken as an example for description.
  • the method in this embodiment can also be applied to other types of broadcast services, such as digital video, Machine Type Communication (MTC), and Public Safety (PS) communication. , Cluster MCPTT (Mission Critical Push To Talk).
  • the MCE sends the SIB13 related information of the adjacent MBSFN area to the eNB.
  • FIG. 7 is a schematic flowchart of the first example of the present invention. As shown in FIG. 7, the method includes:
  • Step S701 The MCE sends the SIB13 related information of the adjacent MBSFN area to the eNB.
  • the MCE sends an M2SETUP RESPONSE message to the eNB, and the MCH SETUP RESPONSE message includes an "MCCH related BCCH Configuration data per MBSFN area" cell, that is, the content of the SIB13;
  • the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity)
  • the MCE only needs to send the SIB13 of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, in the phase.
  • the MCE sends the corresponding SIB13, otherwise it does not need to be sent.
  • the triggering step S701 includes at least one of the following reasons:
  • the MCE receives the "M2SETUP REQUEST" message sent by the eNB, and the message includes: an MBMS Service Area List cell, where the required adjacent MBSFN area ID can be included in the cell.
  • the MCE includes the SIB13 related information of the adjacent MBSFN area in the M2SETUP RESPONSE.
  • the control information of the adjacent MBSFN area changes.
  • the MCE sends SIB13 related information through the M2 interface.
  • Step S702 The eNB sends the SIB13 information of the adjacent MBSFN area through the air interface.
  • the eNB sends the SIB13 information in at least one of the following ways:
  • SIB13 that is, the eNB transmits the SIB13 information of the neighboring MBSFN area through the SIB13 of the current cell.
  • a field may be added: areaOverlap BOOLEAN. When the value is true, it is represented as an overlapping area, otherwise it is an adjacent area. .
  • the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
  • the MCCH information that is, the SIB13 information of the adjacent MBSFN area is transmitted by the MBSFNAreaConfiguration, the MBSFN-AreaInfoList cell is added to the MBSFNAreaConfiguration, and the SIB13 information of the one or more adjacent MBSFN areas is included in the MBSFN-AreaInfoList cell.
  • the eNB sends the SIB13 information of the adjacent MBSFN area, such as RRCConnectionReconfiguration signaling, to the UE through dedicated RRC signaling.
  • Step S703 The UE acquires SIB13 information of the adjacent MBSFN area.
  • the UE acquires SIB13 information of the neighboring MBSFN area in at least one of the following manners: SIB13, MCCH information or dedicated RRC signaling.
  • the UE moves to the edge cell of the MBSFN area, acquires the MCCH information of the neighboring MBSFN area according to the SIB13 information of the neighboring MBSFN area, and determines the configuration information of the required V2X service from the MCCH information of the adjacent MBSFN area.
  • Step S704 The UE receives the required V2X service data.
  • the UE moves to the adjacent MBSFN area, acquires the MSI according to the configuration information of the required V2X service, and receives the required V2X service data according to the MSI.
  • the MCE sends the MCCH information of the adjacent MBSFN area to the eNB.
  • FIG. 8 is a schematic flowchart of the second embodiment of the present invention. As shown in FIG. 8, the method includes:
  • Step S801 The MCE sends an MBMS SCHEDULING INFORMATION to the eNB, where the MCCH information of the adjacent MBSFN area is included.
  • the MCE since the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity), the MCE only needs to send the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, When the same V2X service exists in the adjacent MBSFN area, the MCE sends the corresponding MBMS SCHEDULING INFORMATION, otherwise it does not need to be sent.
  • the triggering condition for the MCE to send the neighboring MBSFN area configuration information to the eNB includes at least one of the following: the eNB requests that the control information of the neighboring MBSFN area changes, and other network elements (such as the MME) indicate or periodically transmit.
  • Step S802 The eNB sends the MCCH information of the adjacent MBSFN area through the air interface.
  • the eNB sends the MCCH information in at least one of the following ways:
  • SIB13 that is, the eNB transmits MCCH information of the adjacent MBSFN area through the SIB13 of the current cell.
  • the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
  • the MCCH information that is, the MCCH information of the neighboring MBSFN area is transmitted through the MBSFNAreaConfiguration.
  • the configuration information of the same V2X service in the adjacent MBSFN area can be added in the MBMS-SessionInfo and the PMCH-Config in the MBSFNAreaConfiguration.
  • the UE is in RRC-Connected mode, and the eNB sends MCCH information of the adjacent MBSFN area, such as RRCConnectionReconfiguration signaling, to the UE through dedicated RRC signaling.
  • MCCH information of the adjacent MBSFN area such as RRCConnectionReconfiguration signaling
  • Step S803 The UE acquires MCCH information of the adjacent MBSFN area.
  • the UE acquires MCCH information of the neighboring MBSFN area in at least one of the following manners: SIB13, MCCH information, or dedicated RRC signaling.
  • the UE moves to the edge cell of the MBSFN area, and determines the configuration information of the required V2X service according to the MCCH information of the adjacent MBSFN area.
  • Step S804 The UE acquires the required V2X service data.
  • the UE moves to the adjacent MBSFN area, acquires the MSI according to the configuration information of the required V2X service, and receives the required V2X service data according to the MSI.
  • the eNB exchanges control information of the adjacent MBSFN area through the X2 port.
  • FIG. 9 is a schematic flowchart of the third example of the present invention. As shown in FIG. 9, the method includes:
  • Step S901 The eNB exchanges adjacent MBSFN area control information through the X2 port.
  • eNB1 is located in MBSFN area1
  • eNB2 is located in MBSFN area2
  • MBSFN area1 and MBSFN area2 are adjacent.
  • the eNBs 1 and 2 are configured to exchange the MBSFN area control information through the X2 interface, including at least one of the following: the UE requests the eNB to perform handover, and the control information of the adjacent MBSFN area changes, and other network nodes (such as MCE, or MME, etc.) indicate Or interact periodically.
  • the UE requests the eNB to perform handover
  • the control information of the adjacent MBSFN area changes and other network nodes (such as MCE, or MME, etc.) indicate Or interact periodically.
  • the control information of the interaction between the eNBs 1, 2 includes at least one of the following: SIB13, MCCH information, MSI. It should be noted that if the interactive content is an MSI, it is assumed that the same V2X service exists in the adjacent MBSFN area, and the UE is known. The mapping relationship between the TMGI corresponding to the service and the same V2X service (TMGI) and LCID.
  • Step S902 After acquiring the control information of the neighboring MBSFN area, the eNB sends the information to the UE in the local area, such as by using the SIB13, the MCCH information, or the dedicated RRC signaling.
  • the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
  • the eNB when the eNB determines that there is a V2X service in the neighboring MBSFN area that is the same as the current MBSFN area, the eNB sends the control information of the neighboring MBSFN area through the air interface. Otherwise, the eNB does not send the control information.
  • Step S903 After receiving the control information of the neighboring MBSFN area, the UE acquires the required V2X service data according to the requirement (such as the UE moves to the adjacent MBSFN area), and the V2X service being received is not in the process of the UE moving. Interrupted.
  • FIG. 10 is a schematic flowchart of the fourth embodiment of the present invention. As shown in FIG. 10, the method includes:
  • Step S1001 The UE requests control information of a neighboring broadcast area.
  • the UE requests control information of the adjacent area in at least one of the following manners:
  • the access layer AS requests, for example, the UE sends RRC signaling to the eNB, and requests the required control information in the RRC signaling, for example, the UE indicates the required control information to the eNB through the MBMS InterestIndication;
  • the eNB may obtain control information of the adjacent area by using at least one of the following methods:
  • NAS signaling such as attachRequest, TAU, serviceRequest, and other NAS signaling to the MME (Mobility Management Entity), and indicates required control information in the NAS signaling;
  • the MME After receiving the request, the MME obtains the required control information by using at least one of the following methods:
  • Application layer/service layer request the UE sends a request to the application server AS through application layer signaling, and indicates the required control information in the request.
  • the AS forwards the request to the MCE and/or the eNB over the 3GPP network.
  • Step S1002 The UE receives required neighboring area control information
  • the UE can obtain the required control information by using at least one of the following methods:
  • Step S1003 The UE receives the required V2X service data according to the adjacent area control information.
  • the UE moves to the adjacent MBSFN area and receives the required V2X service data according to the acquired control information.
  • the V2X service received by the UE is not interrupted.
  • FIG. 11 is a schematic diagram of a system architecture according to an embodiment of the present invention.
  • the system includes: a radio access network device 501 and a terminal 502; and a radio access network.
  • the device 501 includes a base station module 5011 and an MCE module 5012.
  • the terminal 502 includes a terminal receiving module 5021, a processing module 5022, and a sending module 5023.
  • the terminal receiving module 5021 is configured to receive adjacent MBSFN area control information sent by the base station module 5011 through an air interface.
  • the processing module 5022 is configured to determine the required V2X service configuration information according to the received neighboring MBSFN area control information; the sending module 5023 of the terminal 502 is configured to send the request message of the adjacent MBSFN area control information to the base station module 5011.
  • the base station module 5011 is configured to transmit and receive adjacent MBSFN area control information, receive the request of the terminal 502, and send the adjacent MBSFN area control information to the terminal 502.
  • the MCE module 5012 is configured to send the adjacent MBSFN area control information to the base station module 5011, and is further configured to The request message sent by the base station module 5011 is received.
  • the same vehicle network V2X service is deployed in two adjacent MBSFN areas in combination with a specific application scenario.
  • Two MBSFN areas are configured with radio resources through one MCE, eNB1 is located in MBSFN area1, and eNB2 is located in MBSFN area2.
  • the UE is located in the MBSFN area1, and receives the required V2X service 1 through the eNB1;
  • the MCE sends the control information of the MBSFN area 2 to the eNB1, or the eNB1 acquires the control information of the MBSFN area2 through the X2 interface;
  • the eNB 1 transmits control information of the MBSFN area 2.
  • the UE moves to the edge cell of the MBSFN area1;
  • the UE receives the configuration information of the V2X service 1 in the MBSFN area 2;
  • the UE moves to the MBSFN area 2, and the UE continues to receive the required V2X service 1.
  • the time delay of the MBSFN transmission can be reduced, the service continuity of the UE moving between different MBSFN areas can be ensured, and the V2X service can be transmitted by using the MBSFN mode.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store a receiving method for performing the multimedia broadcast multicast service of the embodiment of the present invention, specifically, the program code that performs the following steps:
  • S2 Receive MBMS services of adjacent MBMS areas according to MBMS control information.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor performs, according to the stored program code in the storage medium, the MBMS control information of acquiring the MBMS area of the adjacent multimedia broadcast multicast service of the terminal camped cell;
  • the processor performs the MBMS service of receiving the adjacent MBMS area according to the MBMS control information according to the stored program code in the storage medium.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Execution shown or described The steps are either made into individual integrated circuit modules, or a plurality of modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the technical solution of the embodiment of the present invention is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area.
  • Receiving the MBMS service can avoid the extra delay of receiving the MBMS service when the UE moves to the adjacent MBMS area, and solves the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large, thereby achieving the reduction of the MBMS service.
  • the effect of transmission delay is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area.

Abstract

Provided are a method for receiving multimedia broadcast multicast service, and a terminal, a base station and a storage medium, wherein the method comprises: acquiring MBMS control information about a multimedia broadcast multicast service MBMS region adjacent to a terminal resident cell, and then receiving an MBMS service of the adjacent MBMS region according to the MBMS control information. By means of the present invention, the problem in the related art of too long a time delay for receiving an MBMS service during the movement of a UE is solved, thus achieving the effect of shortening the transmission delay of the MBMS service.

Description

多媒体广播多播业务的接收方法及终端、基站、存储介质Method for receiving multimedia broadcast multicast service and terminal, base station and storage medium 技术领域Technical field
本发明涉及通信领域，具体而言，涉及一种多媒体广播多播业务的接收方法及终端、基站、存储介质。The present invention relates to the field of communications, and in particular to a method for receiving a multimedia broadcast multicast service, a terminal, a base station, and a storage medium.
背景技术Background technique
随着经济社会高速发展，中国汽车保有量迅速增长，道路交通事故频繁发生，已成为近年来影响我国公众安全感的重要因素之一，道路交通安全问题已经成为影响社会和谐和改善民生的基本问题之一。中国迫切需要从技术、政策、教育等各方面改善交通安全，其中提升车辆安全设计是其中的重要组成部分。With the rapid development of economy and society, China's automobile ownership has grown rapidly, and road traffic accidents have occurred frequently. It has become one of the important factors affecting China's public security in recent years. Road traffic safety has become a basic problem affecting social harmony and improving people's livelihood. one. China urgently needs to improve traffic safety from various aspects such as technology, policy and education. Among them, improving vehicle safety design is an important part of it.
提升车辆安全的技术主要分为被动安全技术和主动安全技术。被动安全技术用于在事故发生后，对车内、车外人员及物品的保护；主动安全技术用于防止和减少车辆发生事故，避免人员受到伤害；主动安全技术是现代车辆安全技术发展的重点和趋势。The technologies to improve vehicle safety are mainly divided into passive safety technology and active safety technology. Passive safety technology is used to protect people inside and outside the vehicle after accidents. Active safety technology is used to prevent and reduce accidents in vehicles and avoid injuries. Active safety technology is the focus of modern vehicle safety technology development. And trends.
基于通信的碰撞预警***，通过利用先进的无线通信技术和新一代信息处理技术，实现车与车、车与路侧基础设施间的实时信息交互，告知彼此目前的状态(包括车辆的位置、速度、加速度、行驶路径)及获知的道路环境信息，协作感知道路危险状况，及时提供多种碰撞预警信息，防止道路交通安全事故的发生，成为当前各国试图解决道路交通安全问题的一种新的思路。The communication-based collision warning system realizes real-time information interaction between the vehicle, the vehicle and the roadside infrastructure by using advanced wireless communication technology and a new generation of information processing technology, and informs each other of the current state (including the position and speed of the vehicle). Acceleration, driving route) and learned road environment information, collaboratively aware of road hazard conditions, timely providing a variety of collision warning information to prevent road traffic safety accidents, and become a new way for countries to solve road traffic safety problems. .
车联网V2X(Vehicle to Everything)：是指通过装载在车辆上的传感器、车载终端及电子标签提供车辆信息，采用各种通信技术实现车与车(Vehicle to Vehicle，简称为V2V)、车与人(Vehicle to Pedestrian，简称为V2P)、车 与路(基础设施)(Vehicle to Infrastructure，简称为V2I)互连互通，并在信息网络平台上对信息进行提取、共享等有效利用，对车辆进行有效的管控和提供综合服务。Vehicle to Everything (V2X): Provides vehicle information through sensors, vehicle terminals and electronic tags mounted on vehicles. Vehicles and vehicles (V2V) and vehicles are used by various communication technologies. (Vehicle to Pedestrian, referred to as V2P), car It is interconnected with Vehicle to Infrastructure (V2I) and effectively extracts and shares information on the information network platform to effectively control and provide comprehensive services for vehicles.
近年来随着新的移动通信技术的发展，国际上出现了使用长期演进(Long Time Evolution，简称为LTE)技术来解决基于车联网通信应用的研究。In recent years, with the development of new mobile communication technologies, the use of Long Time Evolution (LTE) technology to solve the research based on vehicle networking communication applications has emerged internationally.
路边通信单元RSU(Road Side Unit)可以接收车辆请求,保证车辆接入Internet，有网关的功能；此外,它也拥有数据运算、存储、转发的功能。The roadside communication unit RSU (Road Side Unit) can receive the vehicle request, ensure the vehicle accesses the Internet, and has the function of a gateway; in addition, it also has the functions of data calculation, storage and forwarding.
相关技术中有两种车联网实现技术：专用短距离通信(DSRC,Dedicated Short Range Communication)和LTE，其中DSRC基于IEEE802.11P和IEEE1609系列标准，802.11P负责物理层和媒体接入控制(MAC，Medium Access Control)技术，1609负责上层规范。基于LTE的V2X技术刚开始讨论，还没有标准。There are two kinds of car networking implementation technologies in the related art: Dedicated Short Range Communication (DSRC) and LTE, where DSRC is based on IEEE802.11P and IEEE1609 series standards, and 802.11P is responsible for physical layer and media access control (MAC, Medium Access Control technology, 1609 is responsible for the upper specification. The LTE-based V2X technology has just begun to be discussed and there are no standards.
相关技术中3GPP讨论的LTE V2X技术包括：RSU可通过静止的UE或eNB实现，V2V/V2I/V2P可能通过PC5接口或Uu接口实现，其中PC5接口是指设备到设备D2D的空中接口，Uu接口是指UE到eNB的空中接口，图1是相关技术中通过Uu口传输V2X业务的架构图，通过Uu口发送V2X业务的***架构如图1所示：其中，E-UTRAN为LTE网络中的基站。The LTE V2X technology discussed by the 3GPP in the related art includes: the RSU can be implemented by a stationary UE or an eNB, and the V2V/V2I/V2P may be implemented by using a PC5 interface or a Uu interface, where the PC5 interface refers to an air interface of the device to the device D2D, and the Uu interface Refers to the air interface of the UE to the eNB. FIG. 1 is an architecture diagram of transmitting V2X services through the Uu interface in the related art. The system architecture for transmitting V2X services through the Uu interface is shown in FIG. 1 , where E-UTRAN is in the LTE network. Base station.
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)提出了多媒体广播多播业务(Multimedia Broadcast Multicast Service，简称为MBMS)，该业务是一种从一个数据源向多个目标终端传送数据的技术，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在R13的LTE-A中提出了单小区MBMS的研究课题，其中单小区MBMS业务在物理下行共享信道PDSCH上传输。在3GPP网络中MBMS业务采用 临时移动组标识(Temporary Mobile Group Identity，简称为TMGI)，TMGI由网元广播多播业务中心(Broadcast Multicast-Service Centre，简称为BM-SC)分配。应用服务器通过应用层信令通知UE相关的业务描述信息：如TMGI，业务开始时间等。单小区点到多点(Single Cell-Point To Multipoint，简称为SC-PTM)是另外一种采用物理下行共享信道(PDSCH)传输广播业务的方法。多媒体广播单频网(Multimedia Broadcast Single Frequency Network，简称为MBSFN)和SC-PTM的核心网相同，在接入网由多小区/多播协作实体(Multicell/Multicast Coordination Entity，简称为MCE)确定采用MBSFN或SC-PTM在空口发送广播业务。交通安全业务一般针对一定区域内的多个车辆，下行采用广播传输是一种高效的手段，根据仿真评估，下行采用单播传输难以满足V2X业务的容量需求。特定V2X业务的有效区域一般较小，采用MBSFN方式传输时需要划分的MBSFN区域一般也较小，如7小区或更小。发送V2X业务的车辆高速运动，可能频繁的改变MBSFN区域或小区。如果车辆(或UE)进入新的MBSFN区域，需要依次读取SIB13,多播控制信道(Multicast Control Channel，简称为MCCH),多播信道(Multicast Channel，简称为MCH)调度信息(MCH Scheduling Information，简称为MSI)等消息，从中获取所需V2X业务的配置信息，然后读取所需的V2X业务，图2是相关技术中基于MBMS的V2X***架构图，其中，各个模块或设备之间通过接口进行信息通信和交互，包括：Uu、S1-MME、M3、S6a、M1、S-11、Sm、S1-u、SGimb、SGmb、Rx、SG、VC1、MB2-C(控制面)、VMB2-U(用户面)，上述各个接口为本领域通用的接口类型，在此不再赘述。In order to effectively utilize mobile network resources, the 3rd Generation Partnership Project (3GPP) proposes a Multimedia Broadcast Multicast Service (MBMS), which is a data source. The technology of transmitting data by multiple target terminals realizes 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). 3GPP proposes a research topic of single-cell MBMS in LTE-A of R13, in which a single-cell MBMS service is transmitted on a physical downlink shared channel PDSCH. Adoption of MBMS services in 3GPP networks The Temporary Mobile Group Identity (TMGI) is allocated by the Broadcast Multicast-Service Centre (BM-SC). The application server notifies the UE of relevant service description information through application layer signaling: such as TMGI, service start time, and the like. Single Cell-Point To Multipoint (SC-PTM) is another method of transmitting broadcast services using the Physical Downlink Shared Channel (PDSCH). The Multimedia Broadcast Single Frequency Network (MBSFN) is the same as the core network of the SC-PTM. The access network is determined by the Multicell/Multicast Coordination Entity (MCE). MBSFN or SC-PTM sends broadcast services on the air interface. The traffic safety service generally targets multiple vehicles in a certain area. The downlink transmission using broadcast is an efficient means. According to the simulation evaluation, it is difficult to meet the capacity requirements of the V2X service by using unicast transmission. The effective area of a specific V2X service is generally small, and the MBSFN area to be divided when transmitting in the MBSFN mode is generally small, such as 7 cells or smaller. High-speed movement of vehicles that transmit V2X services may change the MBSFN area or cell frequently. If the vehicle (or UE) enters the new MBSFN area, it needs to read the SIB13, the Multicast Control Channel (MCCH), and the Multicast Channel (MCH) scheduling information (MCH Scheduling Information, For example, MSI), obtain the configuration information of the required V2X service, and then read the required V2X service. FIG. 2 is a schematic diagram of the VMS system based on the MBMS in the related art, where each module or device passes the interface. Information communication and interaction, including: Uu, S1-MME, M3, S6a, M1, S-11, Sm, S1-u, SGimb, SGmb, Rx, SG, VC1, MB2-C (control plane), VMB2- U (user plane), each of the above interfaces is an interface type common to the field, and details are not described herein again.
采用MBMS传输V2X业务的***架构如图2所示,但是，对于针对安全类的V2X业务，时延要求100ms以内，3GPP采用MBMS承载广播V2X业务，当UE由于移动改变了广播区域，现有MBMS业务接收流程无法保 证100ms的时延要求，可能造成V2X业务接收失败。The system architecture for transmitting V2X services using MBMS is shown in Figure 2. However, for V2X services for security classes, the delay requirement is within 100ms. 3GPP uses MBMS to carry broadcast V2X services. When the UE changes the broadcast area due to mobility, the existing MBMS Business receiving process cannot be guaranteed The 100 ms delay requirement may cause the V2X service to fail to receive.
针对相关技术中在UE移动时接收MBMS业务时延太大的问题，目前尚未法相有效的解决方案。In view of the problem that the delay of receiving the MBMS service when the UE moves is too large in the related art, there is currently no effective solution.
发明内容Summary of the invention
本发明实施例提供了一种多媒体广播多播业务的接收方法及终端、基站、存储介质，以至少解决相关技术中在UE移动时接收MBMS业务的时延太大的问题。The embodiment of the invention provides a method for receiving a multimedia broadcast multicast service, a terminal, a base station, and a storage medium, so as to at least solve the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large.
根据本发明实施例的一个方面，提供了一种多媒体广播多播业务的接收方法，包括：获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务。According to an aspect of the present invention, a method for receiving a multimedia broadcast multicast service is provided, including: acquiring MBMS control information of a MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell; and according to the MBMS control information Receive MBMS services of adjacent MBMS areas.
本发明实施例中，所述驻留小区属于1个或多个MBMS区域，和/或，所述相邻MBMS区域包括一个或多个MBMS区域。In the embodiment of the present invention, the camped cell belongs to one or more MBMS areas, and/or the neighbor MBMS area includes one or more MBMS areas.
本发明实施例中，所述MBMS区域采用多媒体广播单频网MBSFN模式和/或单小区点到多点SC-PTM模式发送所述MBMS业务。In the embodiment of the present invention, the MBMS area uses the multimedia broadcast single frequency network MBSFN mode and/or the single cell point-to-multipoint SC-PTM mode to send the MBMS service.
本发明实施例中，所述驻留小区为采用单播模式发送MBMS业务的小区。In the embodiment of the present invention, the camped cell is a cell that sends an MBMS service in a unicast mode.
本发明实施例中，所述相邻MBMS区域与所述驻留小区所覆盖的一个或多个MBMS区域相邻。In the embodiment of the present invention, the adjacent MBMS area is adjacent to one or more MBMS areas covered by the resident cell.
本发明实施例中，获取终端驻留小区的相邻MBMS区域的MBMS控制信息包括以下至少之一：从所述驻留小区的***信息块SIB中获取所述MBMS控制信息；从所述驻留小区的MBSFN区域配置消息中获取所述MBMS控制信息；通过专用信令获得所述MBMS控制信息。In the embodiment of the present invention, the MBMS control information of the neighboring MBMS area of the camped cell of the terminal includes at least one of: acquiring the MBMS control information from the system information block SIB of the camping cell; Obtaining the MBMS control information in an MBSFN area configuration message of the cell; obtaining the MBMS control information by using dedicated signaling.
本发明实施例中，在获取终端驻留小区的相邻MBMS区域的MBMS控制信息之后，所述方法还包括：在所述驻留小区读取所需的MBMS业务。 In the embodiment of the present invention, after acquiring the MBMS control information of the neighboring MBMS area of the terminal camping cell, the method further includes: reading the required MBMS service in the camping cell.
本发明实施例中，在所述驻留小区读取所需的MBMS业务包括：在所述驻留小区读取相邻MBMS区域的下列参数信息至少之一：多播控制信道MCCH信息、多播信息调度信息MSI、单小区多播控制信道SC-MCCH信息；根据所述参数信息读取所需的多播业务信道MTCH或单小区多播业务信道SC-MTCH业务数据；其中，所述所需的MBMS业务为所述终端正在接收或待接收的MBMS业务。In the embodiment of the present invention, the MBMS service required for reading in the camping cell includes: reading at least one of the following parameter information of the neighboring MBMS area in the camping cell: multicast control channel MCCH information, multicast Information scheduling information MSI, single cell multicast control channel SC-MCCH information; reading required multicast traffic channel MTCH or single cell multicast traffic channel SC-MTCH service data according to the parameter information; wherein, the required The MBMS service is an MBMS service that the terminal is receiving or waiting to receive.
本发明实施例中，根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务包括：判断相邻MBMS区域的MBMS业务内容或SC-PTM业务内容是否包括所述所需的MBMS业务；在判断结果为是时，根据所述MBMS控制信息接收所述所需的MBMS业务。In the embodiment of the present invention, receiving the MBMS service of the neighboring MBMS area according to the MBMS control information includes: determining whether the MBMS service content or the SC-PTM service content of the adjacent MBMS area includes the required MBMS service; When yes, the required MBMS service is received according to the MBMS control information.
本发明实施例中，在根据所述MBMS控制信息接收所述所需的MBMS业务之后还包括：将在相邻MBMS区域接收的所需的MBMS业务和在所述驻留小区读取的所需的MBMS业务进行合并或丢弃。In the embodiment of the present invention, after receiving the required MBMS service according to the MBMS control information, the method further includes: performing required MBMS services received in the adjacent MBMS area and required to be read in the resident cell The MBMS services are merged or discarded.
本发明实施例中，通过以下方式至少之一获取所述相邻MBMS区域的MBMS控制信息：接收多小区/多播协作实体MCE为所述驻留小区提供的相邻MBMS区域的控制信息；接收所述驻留小区的基站eNB和所述相邻MBMS区域的eNB通过X2口获取的相邻MBMS区域的控制信息；获取所述相邻MBMS区域的eNB通过无线资源控制RRC信令向所述终端发送的相邻MBMS区域的控制信息。In the embodiment of the present invention, the MBMS control information of the neighboring MBMS area is obtained by at least one of the following manners: receiving control information of a neighboring MBMS area provided by the multi-cell/multicast cooperative entity MCE for the camping cell; Control information of a neighboring MBMS area acquired by the base station eNB of the camping cell and the eNB of the neighboring MBMS area through the X2 interface; and the eNB acquiring the neighboring MBMS area to the terminal by using radio resource control RRC signaling Control information of the transmitted adjacent MBMS area.
本发明实施例中，所述驻留小区为相邻MBMS区域之间的为所述终端服务的边缘小区。In the embodiment of the present invention, the camped cell is an edge cell serving the terminal between adjacent MBMS areas.
本发明实施例中，所述MBMS控制信息包括以下至少之一：***消息块SIB13、SIB15、SIB20、多播控制信道MCCH信息。In the embodiment of the present invention, the MBMS control information includes at least one of the following: a system message block SIB13, an SIB15, an SIB20, and a multicast control channel MCCH information.
根据本发明实施例的一个方面，提供了另一种多媒体广播多播业务的接收方法，包括：获取基站所辖小区的相邻MBMS区域的MBMS控制信 息；在所述基站所辖小区发送所述MBMS控制信息给终端；其中，所述MBMS控制信息用于为所述终端接收所述相邻MBMS区域的MBMS业务提供配置信息。According to an aspect of the embodiments of the present invention, a method for receiving another multimedia broadcast multicast service is provided, including: acquiring an MBMS control message of a neighboring MBMS area of a cell under the control of a base station And transmitting, by the base station, the MBMS control information to the terminal, where the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the neighboring MBMS area.
本发明实施例中，在以下至少之一情况下，获取驻留小区的相邻MBMS区域的MBMS控制信息：在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；在所述终端所在的MBMS区域发生切换时；所述相邻MBMS区域的MBMS控制信息发生变化时；相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时；在收到用于指示接收所述相邻MBMS区域的MBMS控制信息的指示时。In the embodiment of the present invention, the MBMS control information of the neighboring MBMS area of the camping cell is acquired in at least one of the following: when receiving the request for requesting the MBMS control information of the neighboring MBMS area; When the MBMS region where the MBMS region is switched; when the MBMS control information of the neighboring MBMS region changes; when the MBMS control information of the neighboring MBMS region is periodically transmitted by the camping cell; When the MBMS control information of the MBMS area is indicated.
根据本发明实施例的另一方面，提供了一种用于接收多媒体广播多播业务的终端，包括：获取模块，配置为获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；接收模块，配置为根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务。According to another aspect of the present invention, a terminal for receiving a multimedia broadcast multicast service is provided, including: an obtaining module configured to acquire MBMS control of a MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell The receiving module is configured to receive the MBMS service of the adjacent MBMS area according to the MBMS control information.
根据本发明实施例的另一方面，提供了一种基站，包括：获取模块，配置为获取基站所辖小区的相邻MBMS区域的MBMS控制信息；发送模块，配置为在所述基站所辖小区发送所述MBMS控制信息给终端；其中，所述MBMS控制信息用于为所述终端接收所述MBMS区域的MBMS业务提供配置信息。According to another aspect of the present invention, a base station is provided, including: an obtaining module, configured to acquire MBMS control information of a neighboring MBMS area of a cell under the control of the base station; and a sending module configured to be in a cell under the jurisdiction of the base station Sending the MBMS control information to the terminal, where the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
本发明实施例中，在以下至少之一情况下，所述获取模块获取基站所辖小区的相邻MBMS区域的MBMS控制信息：在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；在所述终端所在的MBMS区域发生切换时；所述相邻MBMS区域的MBMS控制信息发生变化时；所述相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时；在收到用于指示接收所述相邻MBMS区域的MBMS控制信息的指示时。In the embodiment of the present invention, in at least one of the following cases, the acquiring module acquires MBMS control information of a neighboring MBMS area of a cell managed by the base station: when receiving a request for requesting MBMS control information of a neighboring MBMS area When the switching occurs in the MBMS area where the terminal is located; when the MBMS control information of the neighboring MBMS area changes; the MBMS control information of the neighboring MBMS area is periodically transmitted by the camping cell; When indicating an indication of receiving MBMS control information of the neighboring MBMS area.
根据本发明实施例的另一方面，提供了一种存储介质，本发明实施例 提供的计算机存储介质存储有计算机程序，该计算机程序用于执行上述多媒体广播多播业务的接收方法。According to another aspect of an embodiment of the present invention, a storage medium is provided, which is an embodiment of the present invention. The provided computer storage medium stores a computer program for performing the above-described receiving method of the multimedia broadcast multicast service.
本发明实施例的技术方案，采用获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务，通过在相邻MBMS区域接收MBMS业务，可以避免因为UE移动到相邻MBMS区域时而导致接收MBMS业务的额外时延，解决了相关技术中在UE移动时接收MBMS业务的时延太大的问题，进而达到了缩小MBMS业务传输时延的效果。The technical solution of the embodiment of the present invention is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area. Receiving the MBMS service can avoid the extra delay of receiving the MBMS service when the UE moves to the adjacent MBMS area, and solves the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large, thereby achieving the reduction of the MBMS service. The effect of transmission delay.
附图说明DRAWINGS
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:
图1是相关技术中通过Uu口传输V2X业务的架构图；FIG. 1 is a structural diagram of transmitting a V2X service through a Uu port in the related art;
图2是相关技术中基于MBMS的V2X***架构图；2 is a schematic diagram of a VMS system based on MBMS in the related art;
图3是根据本发明实施例的一种多媒体广播多播业务的接收方法的流程图；FIG. 3 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention; FIG.
图4是根据本发明实施例的另一种多媒体广播多播业务的接收方法的流程图；4 is a flowchart of another method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention;
图5是根据本发明实施例的一种多媒体广播多播业务的接收装置的结构框图；FIG. 5 is a structural block diagram of a receiving apparatus for a multimedia broadcast multicast service according to an embodiment of the present invention; FIG.
图6是根据本发明实施例的另一种多媒体广播多播业务的接收装置的结构框图；FIG. 6 is a structural block diagram of another apparatus for receiving a multimedia broadcast multicast service according to an embodiment of the present invention; FIG.
图7是根据本发明示例一流程示意图；7 is a schematic flow chart of an example according to the present invention;
图8是根据本发明示例二的流程示意图；Figure 8 is a flow chart showing an example 2 according to the present invention;
图9是根据本发明示例三的流程示意图； 9 is a schematic flow chart of Example 3 according to the present invention;
图10是根据本发明示例四的流程示意图；Figure 10 is a flow chart showing an example 4 of the present invention;
图11是根据本发明实施例的***架构示意图。11 is a schematic diagram of a system architecture in accordance with an embodiment of the present invention.
具体实施方式detailed description
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.
在本实施例中提供了一种多媒体广播多播业务的接收方法，可以应用在终端UE侧，图3是根据本发明实施例的多媒体广播多播业务的接收方法的流程图，如图3所示，该流程包括如下步骤：In this embodiment, a method for receiving a multimedia broadcast multicast service is provided, which can be applied to a terminal UE side. FIG. 3 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention, as shown in FIG. The process includes the following steps:
步骤S302，获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；Step S302: Obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell.
步骤S304，根据MBMS控制信息接收相邻MBMS区域的MBMS业务。Step S304, receiving an MBMS service of an adjacent MBMS area according to the MBMS control information.
通过上述步骤，采用获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；根据MBMS控制信息接收相邻MBMS区域的MBMS业务，通过在相邻MBMS区域接收MBMS业务，可以避免因为UE移动到相邻MBMS区域时而导致接收MBMS业务的额外时延，解决了相关技术中在UE移动时接收MBMS业务的时延太大的问题，进而达到了缩小MBMS业务传输时延的效果。Through the above steps, the MBMS control information of the MBMS area of the adjacent multimedia broadcast multicast service of the terminal camped cell is obtained; the MBMS service of the adjacent MBMS area is received according to the MBMS control information, and the MBMS service can be avoided by receiving the MBMS service in the adjacent MBMS area. Because the UE moves to the adjacent MBMS area, the additional delay of receiving the MBMS service is solved, which solves the problem that the delay of receiving the MBMS service when the UE moves is too large in the related art, thereby achieving the effect of reducing the transmission delay of the MBMS service.
可选的，MBMS控制信息可以但不限于为：***消息块13(System Information Block，简称为SIB)、SIB15、SIB20或多播控制信道MCCH信息。Optionally, the MBMS control information may be, but is not limited to, a System Information Block (SIB), an SIB15, an SIB20, or a Multicast Control Channel (MCCH) information.
可选的，终端UE所在的当前小区，如驻留小区，可以是属于1个或多个MBMS区域，其中，每个MBMS区域可以采用MBSFN模式发送MBMS 业务，也可以采用SC-PTM发送MBMS业务。Optionally, the current cell where the terminal UE is located, such as a camping cell, may belong to one or more MBMS areas, where each MBMS area may send MBMS in MBSFN mode. For services, you can also use SC-PTM to send MBMS services.
可选的，UE所在的当前小区，也可以不属于任何MBMS区域，即小区采用单播模式发送MBMS业务，如：V2X业务。Optionally, the current cell where the UE is located may not belong to any MBMS area, that is, the cell sends the MBMS service in a unicast mode, such as a V2X service.
在根据本实施例的可选实施方式中，相邻MBMS区域，是指不同于该UE所在小区的所属于的MBMS区域，即：相邻MBMS区域与该UE所在小区的MBMS区域不同。In an alternative embodiment of the present embodiment, the neighboring MBMS area refers to an MBMS area that is different from the cell in which the UE is located, that is, the neighboring MBMS area is different from the MBMS area of the cell in which the UE is located.
可选的，获得相邻MBMS区域的MBMS控制信息。可以但不限于通过以下方式来获取：UE读取本小区的SIB、本MBMS区域的控制信息、通过专用信令获得该控制信息。Optionally, the MBMS control information of the neighboring MBMS area is obtained. The information may be obtained by the UE in the following manner: the UE reads the SIB of the current cell, the control information of the current MBMS area, and obtains the control information by using dedicated signaling.
可选的，UE获知相邻MBMS区域的MBMS控制信息之后，UE可以在当前小区读取相邻MBMS区域的MBMS业务。Optionally, after the UE learns the MBMS control information of the neighboring MBMS area, the UE may read the MBMS service of the neighboring MBMS area in the current cell.
可选的，在UE正在接收或者感兴趣接收某个或某些MBMS业务的情况下，如。特定的MBMS业务或指定的MBMS业务，本实施例还可以包括：Optionally, in the case that the UE is receiving or interested in receiving some or some MBMS services, such as. For a specific MBMS service or a specified MBMS service, the embodiment may further include:
S11，该UE读取相邻MBMS区域的MCCH内容(或SC-MCCH)，如果其内容中包含了其正在接收或者感兴趣接收某个或某些MBMS业务；S11. The UE reads the MCCH content (or SC-MCCH) of the neighboring MBMS area, if its content includes that it is receiving or interested in receiving one or some MBMS services;
S12，该UE进一步地读取相邻MBMS区域的MBMS业务信道(MTCH，或SC-MTCH)，从而获得其正在接收或者感兴趣接收某个或某些MBMS业务的内容，该感兴趣的业务内容可以是正在接收的或者是待接收的；S12. The UE further reads an MBMS Traffic Channel (MTCH, or SC-MTCH) of the neighboring MBMS area, thereby obtaining content that it is receiving or interested in receiving one or some MBMS services, the interested service content. Can be receiving or waiting to be received;
S13，该UE在当前小区，如果正在接收某个或某些MBMS业务的内容，此时UE还获得了相邻MBMS区域的相同MBMS业务的内容，UE可以根据需要进行处理，如合并或丢弃。S13: The UE is in the current cell, if the content of the MBMS service is being received, the UE also obtains the content of the same MBMS service in the neighboring MBMS area, and the UE may perform processing, such as merging or discarding, as needed.
在本实施例中提供了一种多媒体广播多播业务的接收方法，可以应用在网络侧，如基站，图4是根据本发明实施例的多媒体广播多播业务的接收方法的流程图，如图4所示，该流程包括如下步骤： In this embodiment, a method for receiving a multimedia broadcast multicast service is provided, which may be applied to a network side, such as a base station. FIG. 4 is a flowchart of a method for receiving a multimedia broadcast multicast service according to an embodiment of the present invention. As shown in 4, the process includes the following steps:
S402，获取基站所辖小区的相邻MBMS区域的MBMS控制信息；S402. Obtain MBMS control information of a neighboring MBMS area of a cell managed by the base station.
S404，在基站所辖小区发送MBMS控制信息给终端；S404: Send MBMS control information to the terminal in a cell managed by the base station;
其中，MBMS控制信息用于为终端接收MBMS区域的MBMS业务提供配置信息。The MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
在根据本实施例的可选实施方式中，可以但不限于在以下情况下，获取基站所辖小区的相邻MBMS区域的MBMS控制信息：In an optional implementation manner of this embodiment, the MBMS control information of the neighboring MBMS area of the cell under the control of the base station may be acquired, but not limited to:
1.在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；1. Upon receiving a request for requesting MBMS control information for a neighboring MBMS area;
2.在终端所在的MBMS区域发生切换时；2. When a handover occurs in the MBMS area where the terminal is located;
3.相邻MBMS区域的MBMS控制信息发生变化时；3. When the MBMS control information of the adjacent MBMS area changes;
4.在收到用于指示接收相邻MBMS区域的MBMS控制信息的指示时；4. Upon receiving an indication to indicate reception of MBMS control information for a neighboring MBMS area;
5.相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时。5. The MBMS control information of the neighboring MBMS area is periodically transmitted by the camping cell.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
在本实施例中还提供了一种用于接收多媒体广播多播业务的终端，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。In this embodiment, a terminal for receiving a multimedia broadcast multicast service is also provided. The device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
图5是根据本发明实施例的用于接收多媒体广播多播业务的终端的结 构框图，如图5所示，该装置包括：获取模块50，配置为获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；接收模块52，配置为根据MBMS控制信息接收相邻MBMS区域的MBMS业务。FIG. 5 is a diagram of a terminal for receiving a multimedia broadcast multicast service according to an embodiment of the present invention; As shown in FIG. 5, the apparatus includes: an obtaining module 50 configured to acquire MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell; and a receiving module 52 configured to receive according to MBMS control information. MBMS service in the adjacent MBMS area.
图6是根据本发明实施例的多媒体广播多播业务的接收装置的结构框图，可以设置在网络侧设备上，如基站，如图6所示，该装置包括：获取模块60，配置为获取基站所辖小区的相邻MBMS区域的MBMS控制信息；发送模块62，配置为在基站所辖小区发送MBMS控制信息给终端；其中，MBMS控制信息用于为终端接收MBMS区域的MBMS业务提供配置信息。FIG. 6 is a structural block diagram of a receiving apparatus of a multimedia broadcast multicast service according to an embodiment of the present invention, which may be configured on a network side device, such as a base station. As shown in FIG. 6, the apparatus includes: an obtaining module 60 configured to acquire a base station. The MBMS control information of the neighboring MBMS area of the managed cell; the sending module 62 is configured to send the MBMS control information to the terminal in the cell managed by the base station; wherein the MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
可选的，可以但不限于在以下情况下，获取模块60获取基站所辖小区的相邻MBMS区域的MBMS控制信息，包括：Optionally, the obtaining, by the acquiring module 60, the MBMS control information of the neighboring MBMS area of the cell under the control of the base station, includes:
在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；Upon receiving a request for requesting MBMS control information for a neighboring MBMS area;
在终端所在的MBMS区域发生切换时；When a handover occurs in the MBMS area where the terminal is located;
相邻MBMS区域的MBMS控制信息发生变化时；When the MBMS control information of the adjacent MBMS area changes;
相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时；The MBMS control information of the neighboring MBMS area is periodically sent by the camping cell;
在收到用于指示接收相邻MBMS区域的MBMS控制信息的指示时。Upon receiving an indication to indicate reception of MBMS control information for a neighboring MBMS area.
下面结合根据本实施例的可选实施例进行详细具体的说明：Detailed and detailed description will be made below in conjunction with an alternative embodiment according to the present embodiment:
本实施例所包括的装置包括：终端装置、和接入网装置。终端装置包括以下：车载单元OBU、路边单元RSU、用户设备UE(如无特殊说明，本实施例中出现的UE代表上述终端装置的一种或几种)，终端装置获取相邻广播区域(MBSFN区域或SC-PTM小区)的配置信息，并根据配置信息获取所需的V2X业务；The device included in this embodiment includes: a terminal device, and an access network device. The terminal device includes the following: an in-vehicle unit OBU, a roadside unit RSU, and a user equipment UE (if there is no special description, the UE appearing in this embodiment represents one or more of the foregoing terminal devices), and the terminal device acquires a neighboring broadcast area ( Configuration information of the MBSFN area or the SC-PTM cell, and obtaining the required V2X service according to the configuration information;
接入网装置可以包括：eNB，MCE。其中，eNB负责V2X业务的空口信令收发和与MCE之间的信令收发，及在空口接收/发送V2X业务；MCE负责V2X业务的无线资源配置和确定MBMS传输方式(MBSFN或SC-PTM)。本实施例中，MCE还可以负责通过M2接口向eNB发送相邻广 播区域的控制信息，eNB在空口广播收到的相邻广播区域的控制信息。The access network device may include an eNB, an MCE. The eNB is responsible for the air interface signaling of the V2X service and the signaling between the MCE and the MCE, and receiving/transmitting the V2X service in the air interface; the MCE is responsible for configuring the radio resource of the V2X service and determining the MBMS transmission mode (MBSFN or SC-PTM). . In this embodiment, the MCE may also be responsible for sending neighboring WTRUs to the eNB through the M2 interface. Control information of the broadcast area, the eNB broadcasts control information of the received adjacent broadcast area on the air interface.
本实施例还描述了一种利用上述装置减少广播时延的方法，包括：This embodiment also describes a method for reducing broadcast delay by using the above apparatus, including:
实施例1：MCE通过M2接口向eNB发送相邻广播区域的控制信息，eNB通过空口广播收到的相邻广播区域的控制信息。Embodiment 1: The MCE transmits control information of a neighboring broadcast area to an eNB through an M2 interface, and the eNB broadcasts control information of the received adjacent broadcast area through an air interface.
一个MCE负责1个或多个相邻的MBSFN区域的无线资源配置，为了避免相邻MBSFN区域之间的干扰，MCE将相邻MBSFN区域的业务部署在不同的MBSFN资源(可以是不同的MBSFN无线帧，也可以是不同的MBSFN子帧)。An MCE is responsible for the radio resource configuration of one or more adjacent MBSFN areas. To avoid interference between adjacent MBSFN areas, the MCE deploys services in the adjacent MBSFN area to different MBSFN resources (may be different MBSFN wireless). Frames can also be different MBSFN subframes).
需要说明的是：这里相邻的MBSFN区域是指MBSFN区域之间没有重叠区域，且处于MBSFN区域边缘的小区相邻；为了减少相邻MBSFN区域(area)的控制面时延，可以在相邻的MBSFN area间部署重叠区域，则在重叠小区中发送多个MBSFN area的配置信息(当然也会发送多个MBSFN area的V2X业务数据)，如SIB13,MCCH消息，MSI(MCH Scheduling Infomation)等。It should be noted that: the adjacent MBSFN area refers to the area where there is no overlapping area between the MBSFN areas, and the cells in the edge of the MBSFN area are adjacent; in order to reduce the control plane delay of the adjacent MBSFN area, the adjacent area may be adjacent. The overlapping area is deployed between the MBSFN areas, and the configuration information of multiple MBSFN areas is transmitted in the overlapping cell (of course, V2X service data of multiple MBSFN areas is also transmitted), such as SIB13, MCCH message, MSI (MCH Scheduling Infomation) and the like.
具体实现步骤包括：The specific implementation steps include:
步骤1：eNB获得相邻MBSFN area的配置信息，MCE向eNB发送包含相邻MBSFN area的配置信息；Step 1: The eNB obtains configuration information of the neighboring MBSFN area, and the MCE sends configuration information including the adjacent MBSFN area to the eNB.
具体的，可以通过以下方案实现：Specifically, it can be achieved by the following scheme:
方案一：MCE向eNB发送M2SETUP RESPONSE消息，在M2SETUP RESPONSE消息中包含“MCCH related BCCH Configuration data per MBSFN area”信元，即SIB13的内容；考虑MBSFN传输的宏分集效果，处于MBSFN area边缘小区的UE可以收到相邻MBSFN areas的信息，如：可以介绍到相邻MBSFN area的MCCH和MTCH信号(注意：虽然可以接收，但无法正确解码，原因是UE不知道具体信息的资源位置)，除了SIB13，如MCCH(MBSFNAreaConfiguration)消息，MSI，和MTCH数据可以接收， 因为SIB13是单播发送，只能在本小区接收，而SIB13是接收MCCH消息的前提条件，所以UE要正确解码相邻广播区域的信息，首先需要获取相邻MBSFN area的SIB13信息，根据上面描述SIB13内容是MCE确定并发送给eNB的，所以MCE可以将相邻MBSFN area的SIB13信息发送给当前eNB；Solution 1: The MCE sends an M2 SETUP RESPONSE message to the eNB, and the MCH SETUP RESPONSE message includes the “MCCH related BCCH Configuration data per MBSFN area” cell, that is, the content of the SIB13; and considers the macro diversity effect of the MBSFN transmission, the UE in the edge cell of the MBSFN area Information about neighboring MBSFN areas may be received, for example, MCCH and MTCH signals to adjacent MBSFN area may be introduced (note: although it can be received, but cannot be decoded correctly, because the UE does not know the resource location of the specific information), except for SIB13. , such as MCCH (MBSFNAreaConfiguration) message, MSI, and MTCH data can be received, Because the SIB13 is unicast and can only be received in the local cell, and the SIB13 is a precondition for receiving the MCCH message, the UE needs to obtain the information of the adjacent broadcast area, and first needs to obtain the SIB13 information of the adjacent MBSFN area, according to the above description. The SIB13 content is determined by the MCE and sent to the eNB, so the MCE may send the SIB13 information of the adjacent MBSFN area to the current eNB;
由于MCE知道每个MBSFN area中的具体V2X业务(通过TMGI标识),则MCE只需要针对当前MBSFN area中正在进行或即将开始的V2X业务发送相邻MBSFN area的SIB13，本发明实施例中，还可以限定为：在相邻MBSFN area中存在相同的V2X业务时，MCE发送相应的SIB13，否则不需要发送。In the embodiment of the present invention, the MCE only needs to send the specific V2X service in each MBSFN area (through the TMGI identifier), and the MCE only needs to send the SIB13 of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area. It may be defined that when the same V2X service exists in the adjacent MBSFN area, the MCE sends the corresponding SIB13, otherwise it does not need to be sent.
MCE已知MBSFN area的边缘小区，则MCE在向eNB发送相邻MBSFN area的SIB13信息时，可以指明只在边缘小区发送SIB13相关信息，eNB收到相邻区域的SIB13相关信息，只在MBSFN area的边缘小区发送；则UE收到相邻区域的SIB13信息，可以确定UE处于MBSFN area的边缘小区。When the MCE is aware of the edge cell of the MBSFN area, the MCE may send the SIB13 related information only in the edge cell when transmitting the SIB13 information of the neighboring MBSFN area to the eNB, and the eNB receives the SIB13 related information of the adjacent area, only in the MBSFN area. The edge cell sends; the UE receives the SIB13 information of the neighboring area, and can determine that the UE is in the edge cell of the MBSFN area.
方案二：MCE向eNB发送MBMS调度信息(SCHEDULING INFORMATION)，其中包含相邻MBSFN area的MCCH信息。Solution 2: The MCE sends the MBS scheduling information (SCHEDULING INFORMATION) to the eNB, where the MCCH information of the adjacent MBSFN area is included.
由于MCE知道每个MBSFN area中的具体V2X业务(通过TMGI标识),则MCE只需要针对当前MBSFN area中正在进行或即将开始的V2X业务发送相邻MBSFN area的MBMS SCHEDULING INFORMATION，即在相邻MBSFN area中存在相同的V2X业务时，MCE发送相应的MBMS SCHEDULING INFORMATION，否则不需要发送。Since the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity), the MCE only needs to send the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, in the adjacent MBSFN. When the same V2X service exists in the area, the MCE sends the corresponding MBMS SCHEDULING INFORMATION, otherwise it does not need to be sent.
相邻MBSFN area的最大数量可以事先确定，为了和重叠MBSFN area配置兼容，可以设置为8，如maxNeiMBSFNarea＝8.The maximum number of adjacent MBSFN areas can be determined in advance. For compatibility with overlapping MBSFN area configurations, it can be set to 8, such as maxNeiMBSFNarea=8.
需要说明的是：MCE向eNB发送相邻MBSFN area控制信息的触发条 件包括以下至少一种：eNB请求，相邻MBSFN area的控制信息发生变化，其他网元指示或周期性发送，如移动管理实体(Mobility Management Entity，简称为MME)指示。It should be noted that the MCE sends a trigger strip of the adjacent MBSFN area control information to the eNB. The device includes at least one of the following: the eNB requests that the control information of the neighboring MBSFN area changes, and the other network element indicates or periodically sends the indication, such as a Mobility Management Entity (MME).
步骤2：eNB在空口广播相邻MBSFN area的控制信息；Step 2: The eNB broadcasts control information of the adjacent MBSFN area on the air interface.
对应的，根据步骤1中的两种方案，eNB有两种实现方案：Correspondingly, according to the two schemes in step 1, the eNB has two implementation schemes:
方案一：eNB从M2口接收到包含相邻MBSFN area的“MCCH related BCCH Configuration data per MBSFN area”信元的M2SETUP RESPONSE消息，即SIB13信息，eNB在当前小区广播相邻MBSFN area的SIB13，具体的，Solution 1: The eNB receives the M2 SETUP RESPONSE message including the MCCH related BCCH Configuration data per MBSFN area of the adjacent MBSFN area, that is, the SIB13 information, and the eNB broadcasts the SIB13 of the adjacent MBSFN area in the current cell. ,
1)eNB可以在当前小区的SIB13中发送相邻MBSFN area的SIB13，1) The eNB may send the SIB13 of the adjacent MBSFN area in the SIB13 of the current cell,
2)或者eNB在当前MBSFNAreaConfiguration消息中增加相邻MBSFN area的SIB13，如针对每个TMGI增加包含相邻MBSFN area的SIB13信息，2) or the eNB adds the SIB13 of the adjacent MBSFN area in the current MBSFNAreaConfiguration message, such as adding the SIB13 information including the adjacent MBSFN area for each TMGI,
3)或者eNB通过专用RRC信令发送相邻区域的SIB13信息；专用RRC信令是指UE处于RRC-Connected模式时，eNB向UE发送的单播RRC信令。3) The eNB sends the SIB13 information of the neighboring area through the dedicated RRC signaling. The dedicated RRC signaling refers to the unicast RRC signaling sent by the eNB to the UE when the UE is in the RRC-Connected mode.
方案二：eNB从M2接收到相邻MBSFN area的MBMS SCHEDULING INFORMATION，即MBSFNAreaConfiguration信息，eNB可以采用类似方案一中的三种方法在空口发送：1)通过SIB13发送；或2)通过MBSFNAreaConfiguration发送；或3)通过专用RRC信令发送。Solution 2: The eNB receives the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area from the M2, that is, the MBSFNAreaConfiguration information, and the eNB may send the air interface in the air interface by using the following three methods: 1) sending through the SIB13; or 2) transmitting through the MBSFNAreaConfiguration; or 3) Transmission by dedicated RRC signaling.
步骤3：UE接收相邻MBSFN area的控制信息，并进一步接收所需的V2X业务。Step 3: The UE receives control information of the adjacent MBSFN area and further receives the required V2X service.
UE根据收到的不同控制信息，采用以下不同的处理方法：The UE adopts the following different processing methods according to different control information received:
UE收到相邻MBSFN area的SIB13：UE移动到MBSFN area边缘小区，则UE根据收到的SIB13，进一步接收所需的MCCH信息，MSI，和V2X业务数据，即处于边缘小区的UE可以收到两个或以上的MBSFN area发送 的针对相同V2X业务的数据，UE应用层可以根据需要丢弃收到的重复业务数据，当UE移动到另一个MBSFN area的覆盖范围，UE可以继续接收所需的V2X业务数据，并在移动过程中保持V2X业务不中断。The UE receives the SIB13 of the neighboring MBSFN area: the UE moves to the edge cell of the MBSFN area, and the UE further receives the required MCCH information, MSI, and V2X service data according to the received SIB13, that is, the UE in the edge cell can receive Two or more MBSFN area transmissions For the data of the same V2X service, the UE application layer may discard the received repeated service data as needed. When the UE moves to the coverage of another MBSFN area, the UE may continue to receive the required V2X service data, and during the mobile process. Keep V2X business uninterrupted.
UE收到相邻MBSFN area的MBSFNAreaConfiguration：UE移动到MBSFN area边缘小区，则UE根据收到的MBSFNAreaConfiguration，进一步接收所需的MSI，和V2X业务数据，即处于边缘小区的UE可以收到两个或以上的MBSFN area发送的针对相同V2X业务的数据，UE应用层可以根据需要丢弃收到的重复业务数据，当UE移动到另一个MBSFN area的覆盖范围，UE可以继续接收所需的V2X业务数据，并在移动过程中保持V2X业务不中断。The UE receives the MBSFNAreaConfiguration of the neighboring MBSFN area: the UE moves to the edge cell of the MBSFN area, and the UE further receives the required MSI and V2X service data according to the received MBSFNAreaConfiguration, that is, the UE in the edge cell can receive two or The data sent by the MBSFN area for the same V2X service, the UE application layer may discard the received repeated service data as needed, and when the UE moves to the coverage of another MBSFN area, the UE may continue to receive the required V2X service data. And keep the V2X service uninterrupted during the move.
UE收到专用信令：UE移动到MBSFN area边缘小区，则UE根据专用信令的内容，如专用信令可以包含相邻MBSFN area的SIB13、MBSFNAreaConfiguration或MSI，当UE移动到另一个MBSFN area时，UE可以继续接收所需的V2X业务数据。The UE receives the dedicated signaling: the UE moves to the MBSFN area edge cell, and the UE may include the SIB13, MBSFNAreaConfiguration or MSI of the adjacent MBSFN area according to the content of the dedicated signaling, when the UE moves to another MBSFN area. The UE can continue to receive the required V2X service data.
需要说明的是：上述相邻MBSFN area的MSI是指：针对目前MBSFN area中的V2X业务，且UE已知V2X业务对应的TMGI以及V2X业务(TMGI)和LCID(Logical Channel Identifier)的映射关系。It should be noted that the MSI of the adjacent MBSFN area refers to a mapping relationship between the TMGI and the V2X service (TMGI) and the LCID (Logical Channel Identifier) corresponding to the V2X service in the current MBSFN area.
本实施例中，MCCH信息和MBSFNAreaConfiguration信息属于相同的概念。In this embodiment, the MCCH information and the MBSFNAreaConfiguration information belong to the same concept.
实施例2：eNB通过X2***互相邻广播区域的控制信息，eNB在空口广播相邻区域的控制信息。Embodiment 2: The eNB exchanges control information of the adjacent broadcast area through the X2 port, and the eNB broadcasts control information of the adjacent area in the air interface.
假设eNB1位于MBSFN area1，eNB2位于MBSFN area2，eNB1和eNB2之间存在X2接口，MBSFN area1和MBSFN area2相邻。It is assumed that eNB1 is located in MBSFN area1, eNB2 is located in MBSFN area2, and there is an X2 interface between eNB1 and eNB2, and MBSFN area1 and MBSFN area2 are adjacent.
触发eNB1,2之间通过X2***互MBSFN area控制信息，可以是：UE向eNB请求，切换，相邻MBSFN area的控制信息发生变化，其他网络节 点(如MCE，或MME等)指示或者周期***互。The eNBs 1 and 2 are configured to exchange the MBSFN area control information through the X2 interface, and the UE may request, switch, and change the control information of the adjacent MBSFN area, and other network sections. Points (such as MCE, or MME, etc.) indicate or periodically interact.
eNB1,2之间交互的控制信息包括以下至少一种：SIB13,MCCH信息，MSI.需要指出的是：如果交互内容是MSI，则假设相邻MBSFN area存在相同的V2X业务，且UE已知所需业务对应的TMGI以及相同V2X业务(TMGI)和LCID的映射关系。The control information of the interaction between the eNBs 1, 2 includes at least one of the following: SIB13, MCCH information, MSI. It should be noted that if the interactive content is an MSI, it is assumed that the same V2X service exists in the adjacent MBSFN area, and the UE is known. The mapping relationship between the TMGI corresponding to the service and the same V2X service (TMGI) and LCID.
eNB获取相邻MBSFN area的控制信息后，向本区域的UE发送：如通过SIB13,MCCH信息或专用RRC信令发送；After acquiring the control information of the neighboring MBSFN area, the eNB sends the information to the UE in the local area, such as by using the SIB13, the MCCH information, or the dedicated RRC signaling;
UE收到相邻MBSFN area的控制信息后，根据需要(如UE移动到相邻的MBSFN area中)获取所需的V2X业务数据，在UE移动过程中，正在接收的V2X业务不会中断。After receiving the control information of the neighboring MBSFN area, the UE obtains the required V2X service data according to the requirement (such as the UE moves to the adjacent MBSFN area), and the V2X service being received is not interrupted during the UE mobile process.
实施例3：终端请求相邻广播区域的控制信息，并根据得到的控制信息获取所需的业务数据。Embodiment 3: The terminal requests control information of a neighboring broadcast area, and acquires required service data according to the obtained control information.
实施流程包括：The implementation process includes:
第一步：UE请求相邻广播区域的控制信息；Step 1: The UE requests control information of a neighboring broadcast area;
UE通过以下至少一种方式请求相邻区域的控制信息：The UE requests control information of the adjacent area in at least one of the following manners:
接入层AS请求，如UE向eNB发送RRC信令，并在RRC信令中请求所需的控制信息，如UE通过MBMSInterestIndication向eNB指示所需的控制信息；The access layer AS requests, for example, the UE sends RRC signaling to the eNB, and requests the required control information in the RRC signaling, for example, the UE indicates the required control information to the eNB through the MBMSInterestIndication;
eNB收到请求后，可以通过以下至少一种方式获取相邻区域的控制信息：After receiving the request, the eNB may obtain control information of the adjacent area by using at least one of the following methods:
1.1)直接通过X2接口获取；1.1) Obtained directly through the X2 interface;
1.2)通过MCE获取。1.2) Obtained by MCE.
非接入层NAS请求，UE向MME(Mobility Management Entity)发送NAS信令，如attachRequest,TAU,serviceRequest等NAS信令，并在上述NAS信令中指示所需的控制信息； The non-access stratum NAS requests the UE to send NAS signaling, such as attachRequest, TAU, serviceRequest, and other NAS signaling to the MME (Mobility Management Entity), and instruct the required control information in the NAS signaling;
MME收到请求后，通过以下至少一种方式获取所需的控制信息：After receiving the request, the MME obtains the required control information by using at least one of the following methods:
2.1)通过M3接口向MCE发送指示，收到指示的MCE向eNB转发请求；2.1) Send an indication to the MCE through the M3 interface, and the MCE that receives the indication forwards the request to the eNB;
2.2)通过S1-MME接口向eNB发送请求。2.2) Send a request to the eNB over the S1-MME interface.
3)应用层/业务层请求，UE通过应用层信令向应用服务器AS发送请求，并在请求中指示所需的控制信息。3) Application layer/service layer request, the UE sends a request to the application server AS through application layer signaling, and indicates the required control information in the request.
AS通过3GPP网络向MCE和/或eNB转发请求。The AS forwards the request to the MCE and/or the eNB over the 3GPP network.
第二步：UE接收所需的相邻区域控制信息；Step 2: The UE receives the required neighboring area control information;
根据第一步发送请求的不同方式，UE可通过以下至少一种方式获取所需的控制信息：According to different ways of sending the request in the first step, the UE can obtain the required control information by using at least one of the following methods:
3.1)空口接入层信令；3.2)NAS层信令；3.3)应用层信令。3.1) Air interface access layer signaling; 3.2) NAS layer signaling; 3.3) Application layer signaling.
第三步：UE根据相邻区域控制信息接收所需的V2X业务数据。The third step: the UE receives the required V2X service data according to the adjacent area control information.
UE移动到相邻的MBSFN area中，根据获取的控制信息接收所需的V2X业务数据。The UE moves to the adjacent MBSFN area and receives the required V2X service data according to the acquired control information.
实施例点4：修改MBMS相关的周期配置参数；Embodiment point 4: modifying the MBMS-related periodic configuration parameters;
现有技术中：最小MCCH Repetition period＝320ms，可减少到10ms，最小MCH调度周期MSP＝40ms，可减少到10ms；重叠MBSFN area的多个MCCH最大时间偏移＝100ms，可以减少到10ms.假设V2X业务对应的MBMS承载在相邻MBSFN area已经建立，则UE移动到相邻MBSFN area获取所需的V2X业务的时间最大为：In the prior art, the minimum MCCH Repetition period=320ms can be reduced to 10ms, the minimum MCH scheduling period is MSP=40ms, and can be reduced to 10ms; the multiple MCCH maximum time offset of the overlapping MBSFN area=100ms can be reduced to 10ms. The MBMS bearer corresponding to the V2X service has been established in the adjacent MBSFN area, and the maximum time for the UE to move to the adjacent MBSFN area to obtain the required V2X service is:
(获取SIB13上的MCCH配置)10ms+(MCCH调度延时)10ms+(获取MCCH,MTCH配置)10ms+(获取多个MCCH)10ms+(MCH调度周期)10ms+(获取所需MSI)5ms＝55ms，(Acquire MCCH configuration on SIB13) 10ms+(MCCH scheduling delay) 10ms+(Get MCCH, MTCH configuration) 10ms+(Get multiple MCCH) 10ms+(MCH scheduling period) 10ms+(Get required MSI) 5ms=55ms,
平均时延为：10+5+10+5+5+5＝40ms.即所需时延小于100ms，满足V2X业务的时延要求。 The average delay is: 10+5+10+5+5+5=40ms. That is, the required delay is less than 100ms, which satisfies the delay requirement of the V2X service.
可选的，减少上述周期参数可能增加空口负载。Alternatively, reducing the above cycle parameters may increase the air interface load.
需要指出的是：本实施例以MBSFN区域为例进行说明，本实施例的方法也可以应用于其他的广播区域，如SC-PTM(Single Cell-Point To Multipoint)，CBS(Cell Broadcast Service)等的广播区域，如果用于其他广播区域，相应的控制信息需要做相应的修改，如MCCH信息在SC-PTM中为SC-MCCH信息，SIB13对应在SC-PTM中为SIB20；本实施例的方法应用不限于SIB13或SIB20，也可以是SIB15或一个新建的SIB.It should be noted that the present embodiment is described by taking an MBSFN area as an example. The method in this embodiment can also be applied to other broadcast areas, such as SC-PTM (Single Cell-Point To Multipoint), CBS (Cell Broadcast Service), and the like. The broadcast area, if used in other broadcast areas, the corresponding control information needs to be modified accordingly. For example, the MCCH information is SC-MCCH information in the SC-PTM, and the SIB13 corresponds to the SIB20 in the SC-PTM. The method of this embodiment The application is not limited to SIB13 or SIB20, but also SIB15 or a new SIB.
本实施例以车联网V2X业务为例进行说明，本实施例的方法也可以应用于其他类型广播业务，如数字视频，机器类型通信MTC(Machine Type Communication)，公共安全(PS，Public Safety)通信，集群MCPTT(Mission Critical Push To Talk，关键任务一键通)等。In this embodiment, the car network V2X service is taken as an example for description. The method in this embodiment can also be applied to other types of broadcast services, such as digital video, Machine Type Communication (MTC), and Public Safety (PS) communication. , Cluster MCPTT (Mission Critical Push To Talk).
本可选实施例还包括下述具体的示例：This alternative embodiment also includes the following specific examples:
示例一：Example 1:
MCE向eNB发送相邻MBSFN area的SIB13相关信息The MCE sends the SIB13 related information of the adjacent MBSFN area to the eNB.
本示例提供了一种减少广播时延的方法，图7是根据本发明示例一的流程示意图，如图7所示，包括：The present example provides a method for reducing the broadcast delay. FIG. 7 is a schematic flowchart of the first example of the present invention. As shown in FIG. 7, the method includes:
步骤S701：MCE向eNB发送相邻MBSFN area的SIB13相关信息；Step S701: The MCE sends the SIB13 related information of the adjacent MBSFN area to the eNB.
MCE向eNB发送M2SETUP RESPONSE消息，在M2SETUP RESPONSE消息中包含“MCCH related BCCH Configuration data per MBSFN area”信元，即SIB13的内容；The MCE sends an M2SETUP RESPONSE message to the eNB, and the MCH SETUP RESPONSE message includes an "MCCH related BCCH Configuration data per MBSFN area" cell, that is, the content of the SIB13;
进一步的，考虑到MCE知道每个MBSFN area中的具体V2X业务(通过TMGI标识),则MCE只需要针对当前MBSFN area中正在进行或即将开始的V2X业务发送相邻MBSFN area的SIB13，即在相邻MBSFN area中存在相同的V2X业务时，MCE发送相应的SIB13，否则不需要发送。Further, considering that the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity), the MCE only needs to send the SIB13 of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, in the phase. When the same V2X service exists in the neighboring MBSFN area, the MCE sends the corresponding SIB13, otherwise it does not need to be sent.
触发步骤S701包括以下至少一种原因： The triggering step S701 includes at least one of the following reasons:
MCE收到eNB发送的“M2SETUP REQUEST”消息，在上述消息中包含：MBMS Service Area List信元，在该信元中可包含所需的相邻MBSFN area ID.The MCE receives the "M2SETUP REQUEST" message sent by the eNB, and the message includes: an MBMS Service Area List cell, where the required adjacent MBSFN area ID can be included in the cell.
根据运营商策略，MCE在M2SETUP RESPONSE中包含相邻MBSFN area的SIB13相关信息。According to the operator policy, the MCE includes the SIB13 related information of the adjacent MBSFN area in the M2SETUP RESPONSE.
相邻MBSFN area的控制信息发生变化。The control information of the adjacent MBSFN area changes.
周期性发送。Sent periodically.
MCE通过M2接口发送SIB13相关信息。The MCE sends SIB13 related information through the M2 interface.
需要指出的是：只有相邻MBSFN area中存在与当前MBSFN area相同的V2X业务，MCE才发送SIB13相关信息，且最大的相邻MBSFN area＝8，否则MCE不发送SIB13相关信息。It should be noted that only the V2X service in the neighboring MBSFN area is the same as the current MBSFN area, and the MCE sends the SIB13 related information, and the largest adjacent MBSFN area=8. Otherwise, the MCE does not send the SIB13 related information.
步骤S702：eNB通过空口发送相邻MBSFN area的SIB13信息；Step S702: The eNB sends the SIB13 information of the adjacent MBSFN area through the air interface.
eNB通过以下至少一种方式发送SIB13信息：The eNB sends the SIB13 information in at least one of the following ways:
SIB13，即eNB通过当前小区的SIB13发送相邻MBSFN area的SIB13信息，为了与重叠MBSFN area相区分，可以增加一个字段：areaOverlap BOOLEAN.当取值true时，代表为重叠区域，否则为相邻区域。SIB13, that is, the eNB transmits the SIB13 information of the neighboring MBSFN area through the SIB13 of the current cell. To distinguish from the overlapping MBSFN area, a field may be added: areaOverlap BOOLEAN. When the value is true, it is represented as an overlapping area, otherwise it is an adjacent area. .
考虑到处于MBSFN area边缘小区的UE才需要接收相邻MBSFN area的控制信息，则优选的，eNB只在MBSFN area的边缘小区发送相邻MBSFN area的控制信息。Considering that the UE in the edge cell of the MBSFN area needs to receive the control information of the neighboring MBSFN area, the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
MCCH信息，即通过MBSFNAreaConfiguration发送相邻MBSFN area的SIB13信息，在MBSFNAreaConfiguration中增加MBSFN-AreaInfoList信元，在MBSFN-AreaInfoList信元中包含一个或多个相邻MBSFN area的SIB13信息。The MCCH information, that is, the SIB13 information of the adjacent MBSFN area is transmitted by the MBSFNAreaConfiguration, the MBSFN-AreaInfoList cell is added to the MBSFNAreaConfiguration, and the SIB13 information of the one or more adjacent MBSFN areas is included in the MBSFN-AreaInfoList cell.
专用RRC信令，UE处于RRC-Connected mode，eNB通过专用的RRC信令向UE发送相邻MBSFN area的SIB13信息，如RRCConnectionReconfiguration信令。 In the RRC-Connected mode, the eNB sends the SIB13 information of the adjacent MBSFN area, such as RRCConnectionReconfiguration signaling, to the UE through dedicated RRC signaling.
步骤S703：UE获取相邻MBSFN area的SIB13信息。Step S703: The UE acquires SIB13 information of the adjacent MBSFN area.
UE通过以下至少一种方式获取相邻MBSFN area的SIB13信息：SIB13，MCCH信息或专用RRC信令。The UE acquires SIB13 information of the neighboring MBSFN area in at least one of the following manners: SIB13, MCCH information or dedicated RRC signaling.
UE移动到MBSFN area边缘小区，根据相邻MBSFN area的SIB13信息获取相邻MBSFN area的MCCH信息，并从相邻的MBSFN area的MCCH信息中确定所需V2X业务的配置信息。The UE moves to the edge cell of the MBSFN area, acquires the MCCH information of the neighboring MBSFN area according to the SIB13 information of the neighboring MBSFN area, and determines the configuration information of the required V2X service from the MCCH information of the adjacent MBSFN area.
步骤S704：UE接收所需的V2X业务数据。Step S704: The UE receives the required V2X service data.
UE移动到相邻MBSFN area，根据所需V2X业务的配置信息获取MSI，并根据MSI接收所需的V2X业务数据。The UE moves to the adjacent MBSFN area, acquires the MSI according to the configuration information of the required V2X service, and receives the required V2X service data according to the MSI.
示例二Example two
MCE向eNB发送相邻MBSFN area的MCCH信息The MCE sends the MCCH information of the adjacent MBSFN area to the eNB.
本示例提供了一种减少广播时延的方法，图8是根据本发明示例二的流程示意图，如图8所示，包括：The present example provides a method for reducing the broadcast delay. FIG. 8 is a schematic flowchart of the second embodiment of the present invention. As shown in FIG. 8, the method includes:
步骤S801：MCE向eNB发送MBMS SCHEDULING INFORMATION，其中包含相邻MBSFN area的MCCH信息。Step S801: The MCE sends an MBMS SCHEDULING INFORMATION to the eNB, where the MCCH information of the adjacent MBSFN area is included.
进一步的，考虑到MCE知道每个MBSFN area中的具体V2X业务(通过TMGI标识),则MCE只需要针对当前MBSFN area中正在进行或即将开始的V2X业务发送相邻MBSFN area的MBMS SCHEDULING INFORMATION，即在相邻MBSFN area中存在相同的V2X业务时，MCE发送相应的MBMS SCHEDULING INFORMATION，否则不需要发送。Further, considering that the MCE knows the specific V2X service in each MBSFN area (through the TMGI identity), the MCE only needs to send the MBMS SCHEDULING INFORMATION of the adjacent MBSFN area for the V2X service that is being or is about to start in the current MBSFN area, that is, When the same V2X service exists in the adjacent MBSFN area, the MCE sends the corresponding MBMS SCHEDULING INFORMATION, otherwise it does not need to be sent.
相邻MBSFN area的最大数量可以事先确定，为了和重叠MBSFN area配置兼容，可以设置为8，如maxNeiMBSFNarea＝8.The maximum number of adjacent MBSFN areas can be determined in advance. For compatibility with overlapping MBSFN area configurations, it can be set to 8, such as maxNeiMBSFNarea=8.
需要指出的是：MCE向eNB发送相邻MBSFN area配置信息的触发条件包括以下至少一种：eNB请求，相邻MBSFN area的控制信息发生变化，其他网元(如MME)指示或周期性发送。 It should be noted that the triggering condition for the MCE to send the neighboring MBSFN area configuration information to the eNB includes at least one of the following: the eNB requests that the control information of the neighboring MBSFN area changes, and other network elements (such as the MME) indicate or periodically transmit.
步骤S802：eNB通过空口发送相邻MBSFN area的MCCH信息；Step S802: The eNB sends the MCCH information of the adjacent MBSFN area through the air interface.
eNB通过以下至少一种方式发送MCCH信息：The eNB sends the MCCH information in at least one of the following ways:
SIB13，即eNB通过当前小区的SIB13发送相邻MBSFN area的MCCH信息。SIB13, that is, the eNB transmits MCCH information of the adjacent MBSFN area through the SIB13 of the current cell.
考虑到处于MBSFN area边缘小区的UE才需要接收相邻MBSFN area的控制信息，则优选的，eNB只在MBSFN area的边缘小区发送相邻MBSFN area的控制信息。Considering that the UE in the edge cell of the MBSFN area needs to receive the control information of the neighboring MBSFN area, the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
MCCH信息，即通过MBSFNAreaConfiguration发送相邻MBSFN area的MCCH信息，如可在MBSFNAreaConfiguration中的MBMS-SessionInfo和PMCH-Config中增加相邻MBSFN area相同V2X业务的配置信息。The MCCH information, that is, the MCCH information of the neighboring MBSFN area is transmitted through the MBSFNAreaConfiguration. For example, the configuration information of the same V2X service in the adjacent MBSFN area can be added in the MBMS-SessionInfo and the PMCH-Config in the MBSFNAreaConfiguration.
专用RRC信令，UE处于RRC-Connected mode，eNB通过专用的RRC信令向UE发送相邻MBSFN area的MCCH信息，如RRCConnectionReconfiguration信令。Dedicated RRC signaling, the UE is in RRC-Connected mode, and the eNB sends MCCH information of the adjacent MBSFN area, such as RRCConnectionReconfiguration signaling, to the UE through dedicated RRC signaling.
步骤S803：UE获取相邻MBSFN area的MCCH信息。Step S803: The UE acquires MCCH information of the adjacent MBSFN area.
UE通过以下至少一种方式获取相邻MBSFN area的MCCH信息：SIB13，MCCH信息或专用RRC信令。The UE acquires MCCH information of the neighboring MBSFN area in at least one of the following manners: SIB13, MCCH information, or dedicated RRC signaling.
UE移动到MBSFN area边缘小区，根据相邻MBSFN area的MCCH信息中确定所需V2X业务的配置信息。The UE moves to the edge cell of the MBSFN area, and determines the configuration information of the required V2X service according to the MCCH information of the adjacent MBSFN area.
步骤S804：UE获取所需的V2X业务数据。Step S804: The UE acquires the required V2X service data.
UE移动到相邻MBSFN area，根据所需V2X业务的配置信息获取MSI，并根据MSI接收所需的V2X业务数据。The UE moves to the adjacent MBSFN area, acquires the MSI according to the configuration information of the required V2X service, and receives the required V2X service data according to the MSI.
示例三Example three
eNB通过X2***互相邻MBSFN area的控制信息The eNB exchanges control information of the adjacent MBSFN area through the X2 port.
本示例提供了一种减少广播时延的方法，图9是根据本发明示例三的流程示意图，如图9所示，包括： This example provides a method for reducing the broadcast delay. FIG. 9 is a schematic flowchart of the third example of the present invention. As shown in FIG. 9, the method includes:
步骤S901：eNB通过X2***互相邻MBSFN area控制信息。Step S901: The eNB exchanges adjacent MBSFN area control information through the X2 port.
假设eNB1位于MBSFN area1，eNB2位于MBSFN area2，eNB1和eNB2之间存在X2接口，MBSFN area1和MBSFN area2相邻。It is assumed that eNB1 is located in MBSFN area1, eNB2 is located in MBSFN area2, and there is an X2 interface between eNB1 and eNB2, and MBSFN area1 and MBSFN area2 are adjacent.
触发eNB1,2之间通过X2***互MBSFN area控制信息，包括以下至少一种：UE向eNB请求，切换，相邻MBSFN area的控制信息发生变化，其他网络节点(如MCE，或MME等)指示或者周期***互。The eNBs 1 and 2 are configured to exchange the MBSFN area control information through the X2 interface, including at least one of the following: the UE requests the eNB to perform handover, and the control information of the adjacent MBSFN area changes, and other network nodes (such as MCE, or MME, etc.) indicate Or interact periodically.
eNB1,2之间交互的控制信息包括以下至少一种：SIB13,MCCH信息，MSI.需要指出的是：如果交互内容是MSI，则假设相邻MBSFN area存在相同的V2X业务，且UE已知所需业务对应的TMGI以及相同V2X业务(TMGI)和LCID的映射关系。The control information of the interaction between the eNBs 1, 2 includes at least one of the following: SIB13, MCCH information, MSI. It should be noted that if the interactive content is an MSI, it is assumed that the same V2X service exists in the adjacent MBSFN area, and the UE is known. The mapping relationship between the TMGI corresponding to the service and the same V2X service (TMGI) and LCID.
步骤S902：eNB获取相邻MBSFN area的控制信息后，向本区域的UE发送：如通过SIB13,MCCH信息或专用RRC信令发送；Step S902: After acquiring the control information of the neighboring MBSFN area, the eNB sends the information to the UE in the local area, such as by using the SIB13, the MCCH information, or the dedicated RRC signaling.
考虑到处于MBSFN area边缘小区的UE才需要接收相邻MBSFN area的控制信息，则优选的，eNB只在MBSFN area的边缘小区发送相邻MBSFN area的控制信息。Considering that the UE in the edge cell of the MBSFN area needs to receive the control information of the neighboring MBSFN area, the eNB preferably transmits the control information of the adjacent MBSFN area only in the edge cell of the MBSFN area.
优选的，eNB确定相邻MBSFN area中有与当前MBSFN area相同的V2X业务时，通过空口发送相邻MBSFN area的控制信息，否则，eNB不发送控制信息。Preferably, when the eNB determines that there is a V2X service in the neighboring MBSFN area that is the same as the current MBSFN area, the eNB sends the control information of the neighboring MBSFN area through the air interface. Otherwise, the eNB does not send the control information.
步骤S903：UE收到相邻MBSFN area的控制信息后，根据需要(如UE移动到相邻的MBSFN area中)获取所需的V2X业务数据，在UE移动过程中，正在接收的V2X业务不会中断。Step S903: After receiving the control information of the neighboring MBSFN area, the UE acquires the required V2X service data according to the requirement (such as the UE moves to the adjacent MBSFN area), and the V2X service being received is not in the process of the UE moving. Interrupted.
示例四Example four
UE请求相邻MBSFN area的控制信息UE requests control information of adjacent MBSFN area
本示例提供了一种减少广播时延的方法，图10是根据本发明示例四的流程示意图，如图10所示，包括： The present example provides a method for reducing the broadcast delay. FIG. 10 is a schematic flowchart of the fourth embodiment of the present invention. As shown in FIG. 10, the method includes:
步骤S1001：UE请求相邻广播区域的控制信息；Step S1001: The UE requests control information of a neighboring broadcast area.
UE通过以下至少一种方式请求相邻区域的控制信息：The UE requests control information of the adjacent area in at least one of the following manners:
1)接入层AS请求，如UE向eNB发送RRC信令，并在RRC信令中请求所需的控制信息，如UE通过MBMSInterestIndication向eNB指示所需的控制信息；1) The access layer AS requests, for example, the UE sends RRC signaling to the eNB, and requests the required control information in the RRC signaling, for example, the UE indicates the required control information to the eNB through the MBMS InterestIndication;
eNB收到请求后，可以通过以下至少一种方式获取相邻区域的控制信息：After receiving the request, the eNB may obtain control information of the adjacent area by using at least one of the following methods:
1.1)直接通过X2接口获取；通过MCE获取。1.1) Obtained directly through the X2 interface; obtained through the MCE.
2)非接入层NAS请求，UE向MME(Mobility Management Entity)发送NAS信令，如attachRequest,TAU,serviceRequest等NAS信令，并在上述NAS信令中指示所需的控制信息；2) The non-access stratum NAS requests, the UE sends NAS signaling, such as attachRequest, TAU, serviceRequest, and other NAS signaling to the MME (Mobility Management Entity), and indicates required control information in the NAS signaling;
MME收到请求后，通过以下至少一种方式获取所需的控制信息：After receiving the request, the MME obtains the required control information by using at least one of the following methods:
2.1)通过M3接口向MCE发送指示，收到指示的MCE向eNB转发请求；2.1) Send an indication to the MCE through the M3 interface, and the MCE that receives the indication forwards the request to the eNB;
2.2)通过S1-MME接口向eNB发送请求。2.2) Send a request to the eNB over the S1-MME interface.
3)应用层/业务层请求，UE通过应用层信令向应用服务器AS发送请求，并在请求中指示所需的控制信息。3) Application layer/service layer request, the UE sends a request to the application server AS through application layer signaling, and indicates the required control information in the request.
AS通过3GPP网络向MCE和/或eNB转发请求。The AS forwards the request to the MCE and/or the eNB over the 3GPP network.
步骤S1002：UE接收所需的相邻区域控制信息；Step S1002: The UE receives required neighboring area control information;
根据第一步发送请求的不同方式，UE可通过以下至少一种方式获取所需的控制信息：According to different ways of sending the request in the first step, the UE can obtain the required control information by using at least one of the following methods:
1)空口接入层信令；2)NAS层信令；3)应用层信令。1) air interface access layer signaling; 2) NAS layer signaling; 3) application layer signaling.
步骤S1003：UE根据相邻区域控制信息接收所需的V2X业务数据。Step S1003: The UE receives the required V2X service data according to the adjacent area control information.
UE移动到相邻的MBSFN area中，根据获取的控制信息接收所需的V2X业务数据。在移动过程中，UE接收的V2X业务不会中断。 The UE moves to the adjacent MBSFN area and receives the required V2X service data according to the acquired control information. During the mobile process, the V2X service received by the UE is not interrupted.
本实施例还提供了一种减少广播时延的***，图11是根据本发明实施例的***架构示意图，如题11所示，***包括：无线接入网装置501和终端502；无线接入网装置501包括基站模块5011和MCE模块5012；终端502包括终端接收模块5021、处理模块5022和发送模块5023，终端接收模块5021配置为通过空口接收基站模块5011发送的相邻MBSFN area控制信息；终端502的处理模块5022配置为根据收到的相邻MBSFN area控制信息确定所需的V2X业务配置信息；终端502的发送模块5023配置为向基站模块5011发送相邻MBSFN area控制信息的请求消息。基站模块5011配置为收发相邻MBSFN area控制信息，接收终端502的请求和向终端502发送相邻MBSFN area控制信息；MCE模块5012配置为向基站模块5011发送相邻MBSFN area控制信息，还配置为接收基站模块5011发送的请求消息。This embodiment also provides a system for reducing broadcast delay. FIG. 11 is a schematic diagram of a system architecture according to an embodiment of the present invention. As shown in FIG. 11, the system includes: a radio access network device 501 and a terminal 502; and a radio access network. The device 501 includes a base station module 5011 and an MCE module 5012. The terminal 502 includes a terminal receiving module 5021, a processing module 5022, and a sending module 5023. The terminal receiving module 5021 is configured to receive adjacent MBSFN area control information sent by the base station module 5011 through an air interface. The processing module 5022 is configured to determine the required V2X service configuration information according to the received neighboring MBSFN area control information; the sending module 5023 of the terminal 502 is configured to send the request message of the adjacent MBSFN area control information to the base station module 5011. The base station module 5011 is configured to transmit and receive adjacent MBSFN area control information, receive the request of the terminal 502, and send the adjacent MBSFN area control information to the terminal 502. The MCE module 5012 is configured to send the adjacent MBSFN area control information to the base station module 5011, and is further configured to The request message sent by the base station module 5011 is received.
在本实施例中，结合具体的应用场景，在两个相邻的MBSFN区域部署了相同的车联网V2X业务，两个MBSFN area通过一个MCE配置无线资源，eNB1位于MBSFN area1,eNB2位于MBSFN area2,eNB1和eNB2之间存在X2接口：In this embodiment, the same vehicle network V2X service is deployed in two adjacent MBSFN areas in combination with a specific application scenario. Two MBSFN areas are configured with radio resources through one MCE, eNB1 is located in MBSFN area1, and eNB2 is located in MBSFN area2. There is an X2 interface between eNB1 and eNB2:
UE位于MBSFN area1,通过eNB1接收所需的V2X业务1；The UE is located in the MBSFN area1, and receives the required V2X service 1 through the eNB1;
MCE向eNB1发送MBSFN area2的控制信息，或者eNB1通过X2接口获取MBSFN area2的控制信息；The MCE sends the control information of the MBSFN area 2 to the eNB1, or the eNB1 acquires the control information of the MBSFN area2 through the X2 interface;
eNB1发送MBSFN area2的控制信息。The eNB 1 transmits control information of the MBSFN area 2.
UE移动到MBSFN area1边缘小区；The UE moves to the edge cell of the MBSFN area1;
UE接收V2X业务1在MBSFN area2的配置信息；The UE receives the configuration information of the V2X service 1 in the MBSFN area 2;
UE移动到MBSFN area2，UE继续接收所需的V2X业务1。The UE moves to the MBSFN area 2, and the UE continues to receive the required V2X service 1.
通过本实施例，可以减少采用MBSFN传输的时延，保证UE在不同MBSFN area间移动的业务连续性，实现通过MBSFN方式发送V2X业务。 With this embodiment, the time delay of the MBSFN transmission can be reduced, the service continuity of the UE moving between different MBSFN areas can be ensured, and the V2X service can be transmitted by using the MBSFN mode.
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行本发明实施例的多媒体广播多播业务的接收方法，具体地，执行以下步骤的程序代码：Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium may be configured to store a receiving method for performing the multimedia broadcast multicast service of the embodiment of the present invention, specifically, the program code that performs the following steps:
S1，获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；S1. Obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of the terminal camping cell.
S2，根据MBMS控制信息接收相邻MBMS区域的MBMS业务。S2. Receive MBMS services of adjacent MBMS areas according to MBMS control information.
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, the MBMS control information of acquiring the MBMS area of the adjacent multimedia broadcast multicast service of the terminal camped cell;
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行根据MBMS控制信息接收相邻MBMS区域的MBMS业务。Optionally, in this embodiment, the processor performs the MBMS service of receiving the adjacent MBMS area according to the MBMS control information according to the stored program code in the storage medium.
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的 步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Execution shown or described The steps are either made into individual integrated circuit modules, or a plurality of modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
工业实用性Industrial applicability
本发明实施例的技术方案，采用获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务，通过在相邻MBMS区域接收MBMS业务，可以避免因为UE移动到相邻MBMS区域时而导致接收MBMS业务的额外时延，解决了相关技术中在UE移动时接收MBMS业务的时延太大的问题，进而达到了缩小MBMS业务传输时延的效果。 The technical solution of the embodiment of the present invention is to obtain MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell, and receive an MBMS service of an adjacent MBMS area according to the MBMS control information, by using an adjacent MBMS area. Receiving the MBMS service can avoid the extra delay of receiving the MBMS service when the UE moves to the adjacent MBMS area, and solves the problem that the delay of receiving the MBMS service when the UE moves in the related art is too large, thereby achieving the reduction of the MBMS service. The effect of transmission delay.

Claims (19)

  1. 一种多媒体广播多播业务的接收方法，包括：A method for receiving a multimedia broadcast multicast service, comprising:
    获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；Obtaining MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of the terminal camping cell;
    根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务。The MBMS service of the adjacent MBMS area is received according to the MBMS control information.
  2. 根据权利要求1所述的方法，其中，所述驻留小区属于1个或多个MBMS区域，和/或，所述相邻MBMS区域包括一个或多个MBMS区域。The method of claim 1, wherein the resident cell belongs to one or more MBMS regions, and/or the neighbor MBMS region comprises one or more MBMS regions.
  3. 根据权利要求1或2所述的方法，其中，所述MBMS区域采用多媒体广播单频网MBSFN模式和/或单小区点到多点SC-PTM模式发送所述MBMS业务。The method according to claim 1 or 2, wherein the MBMS area transmits the MBMS service using a multimedia broadcast single frequency network MBSFN mode and/or a single cell point-to-multipoint SC-PTM mode.
  4. 根据权利要求1所述的方法，其中，其中，所述驻留小区为采用单播模式发送MBMS业务的小区。The method of claim 1, wherein the camped cell is a cell that transmits MBMS traffic in a unicast mode.
  5. 根据权利要求1所述的方法，其中，其中，所述相邻MBMS区域与所述驻留小区所覆盖的一个或多个MBMS区域相邻。The method of claim 1 wherein the neighboring MBMS region is adjacent to one or more MBMS regions covered by the camping cell.
  6. 根据权利要求1所述的方法，其中，获取终端驻留小区的相邻MBMS区域的MBMS控制信息包括以下至少之一：The method according to claim 1, wherein the acquiring MBMS control information of a neighboring MBMS area of the terminal camped cell comprises at least one of the following:
    从所述驻留小区的***信息块SIB中获取所述MBMS控制信息；Obtaining the MBMS control information from a system information block SIB of the resident cell;
    从所述驻留小区的MBSFN区域配置消息中获取所述MBMS控制信息；Obtaining the MBMS control information from an MBSFN area configuration message of the camping cell;
    通过专用信令获得所述MBMS控制信息。The MBMS control information is obtained by dedicated signaling.
  7. 根据权利要求1所述的方法，其中，在获取终端驻留小区的相邻MBMS区域的MBMS控制信息之后，所述方法还包括：在所述驻留小区读取所需的MBMS业务。The method of claim 1, wherein after acquiring MBMS control information for a neighboring MBMS region of the terminal camped cell, the method further comprises: reading the required MBMS service at the camped cell.
  8. 根据权利要求7所述的方法，其中，在所述驻留小区读取所需的MBMS业务包括：The method of claim 7, wherein reading the required MBMS service at the camping cell comprises:
    在所述驻留小区读取相邻MBMS区域的下列参数信息至少之一：多播 控制信道MCCH信息、多播信息调度信息MSI、单小区多播控制信道SC-MCCH信息；Reading at least one of the following parameter information of the adjacent MBMS area in the camping cell: multicast Control channel MCCH information, multicast information scheduling information MSI, single cell multicast control channel SC-MCCH information;
    根据所述参数信息读取所需的多播业务信道MTCH或单小区多播业务信道SC-MTCH业务数据；Reading the required multicast traffic channel MTCH or single cell multicast traffic channel SC-MTCH service data according to the parameter information;
    其中，所述所需的MBMS业务为所述终端正在接收或待接收的MBMS业务。The required MBMS service is an MBMS service that the terminal is receiving or to receive.
  9. 根据权利要求7所述的方法，其中，根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务包括：The method of claim 7, wherein receiving the MBMS service of the neighboring MBMS area according to the MBMS control information comprises:
    判断相邻MBMS区域的MBMS业务内容或SC-PTM业务内容是否包括所述所需的MBMS业务；Determining whether the MBMS service content or the SC-PTM service content of the adjacent MBMS area includes the required MBMS service;
    在判断结果为是时，根据所述MBMS控制信息接收所述所需的MBMS业务。When the determination result is yes, the required MBMS service is received according to the MBMS control information.
  10. 根据权利要求9所述的方法，其中，在根据所述MBMS控制信息接收所述所需的MBMS业务之后还包括：将在相邻MBMS区域接收的所需的MBMS业务和在所述驻留小区读取的所需的MBMS业务进行合并或丢弃。The method according to claim 9, wherein after receiving the required MBMS service according to the MBMS control information, the method further comprises: receiving, in the neighboring MBMS area, a required MBMS service and in the camping cell The required MBMS services read are merged or discarded.
  11. 根据权利要求1所述的方法，其中，通过以下方式至少之一获取所述相邻MBMS区域的MBMS控制信息：The method of claim 1, wherein the MBMS control information of the neighboring MBMS area is obtained by at least one of:
    接收多小区/多播协作实体MCE为所述驻留小区提供的相邻MBMS区域的控制信息；Receiving control information of a neighboring MBMS area provided by the multi-cell/multicast cooperative entity MCE for the camped cell;
    接收所述驻留小区的基站eNB和所述相邻MBMS区域的eNB通过X2口获取的相邻MBMS区域的控制信息；Receiving control information of the neighboring MBMS area acquired by the base station eNB of the camping cell and the eNB of the neighboring MBMS area through the X2 interface;
    获取所述相邻MBMS区域的eNB通过无线资源控制RRC信令向所述终端发送的相邻MBMS区域的控制信息。Obtaining control information of an adjacent MBMS area sent by the eNB of the neighboring MBMS area to the terminal by using radio resource control RRC signaling.
  12. 根据权利要求1或5所述的方法，其中，所述驻留小区为相邻 MBMS区域之间的为所述终端服务的边缘小区。The method of claim 1 or 5, wherein the camping cells are adjacent An edge cell serving the terminal between MBMS areas.
  13. 根据权利要求1所述的方法，其中，所述MBMS控制信息包括以下至少之一：***消息块SIB13、SIB15、SIB20、多播控制信道MCCH信息。The method of claim 1, wherein the MBMS control information comprises at least one of: a system message block SIB13, an SIB 15, an SIB 20, a multicast control channel MCCH information.
  14. 一种多媒体广播多播业务的接收方法，包括：A method for receiving a multimedia broadcast multicast service, comprising:
    获取基站所辖小区的相邻MBMS区域的MBMS控制信息；Obtaining MBMS control information of a neighboring MBMS area of a cell under the control of the base station;
    在所述基站所辖小区发送所述MBMS控制信息给终端；Transmitting, by the base station, the MBMS control information to the terminal;
    其中，所述MBMS控制信息用于为所述终端接收所述相邻MBMS区域的MBMS业务提供配置信息。The MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the neighboring MBMS area.
  15. 根据权利要求14所述的方法，其中，在以下至少之一情况下，获取驻留小区的相邻MBMS区域的MBMS控制信息：The method according to claim 14, wherein the MBMS control information of the neighboring MBMS area of the camped cell is acquired in at least one of the following cases:
    在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；Upon receiving a request for requesting MBMS control information for a neighboring MBMS area;
    在所述终端所在的MBMS区域发生切换时；When a handover occurs in the MBMS area where the terminal is located;
    所述相邻MBMS区域的MBMS控制信息发生变化时；When the MBMS control information of the adjacent MBMS area changes;
    相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时；The MBMS control information of the neighboring MBMS area is periodically sent by the camping cell;
    在收到用于指示接收所述相邻MBMS区域的MBMS控制信息的指示时。Upon receiving an indication for receiving MBMS control information for the neighboring MBMS area.
  16. 一种用于接收多媒体广播多播业务的终端，包括：A terminal for receiving a multimedia broadcast multicast service, comprising:
    获取模块，配置为获取终端驻留小区的相邻多媒体广播多播业务MBMS区域的MBMS控制信息；An acquiring module, configured to acquire MBMS control information of an MBMS area of a neighboring multimedia broadcast multicast service of a terminal camped cell;
    接收模块，配置为根据所述MBMS控制信息接收相邻MBMS区域的MBMS业务。The receiving module is configured to receive the MBMS service of the adjacent MBMS area according to the MBMS control information.
  17. 一种基站，包括：A base station comprising:
    获取模块，配置为获取基站所辖小区的相邻MBMS区域的MBMS控制信息； An acquiring module, configured to acquire MBMS control information of a neighboring MBMS area of a cell under the control of the base station;
    发送模块，配置为在所述基站所辖小区发送所述MBMS控制信息给终端；a sending module, configured to send the MBMS control information to a terminal in a cell managed by the base station;
    其中，所述MBMS控制信息用于为所述终端接收所述MBMS区域的MBMS业务提供配置信息。The MBMS control information is used to provide configuration information for the terminal to receive the MBMS service of the MBMS area.
  18. 根据权利要求17所述的基站，其中，在以下至少之一情况下，所述获取模块获取基站所辖小区的相邻MBMS区域的MBMS控制信息：The base station according to claim 17, wherein in at least one of the following cases, the obtaining module acquires MBMS control information of a neighboring MBMS area of a cell under the control of the base station:
    在接收到用于请求相邻MBMS区域的MBMS控制信息的请求时；Upon receiving a request for requesting MBMS control information for a neighboring MBMS area;
    在所述终端所在的MBMS区域发生切换时；When a handover occurs in the MBMS area where the terminal is located;
    所述相邻MBMS区域的MBMS控制信息发生变化时；When the MBMS control information of the adjacent MBMS area changes;
    所述相邻MBMS区域的MBMS控制信息在驻留小区周期性发送时；The MBMS control information of the neighboring MBMS area is periodically sent by the camping cell;
    在收到用于指示接收所述相邻MBMS区域的MBMS控制信息的指示时。Upon receiving an indication for receiving MBMS control information for the neighboring MBMS area.
  19. 一种存储介质，所述存储介质中存储有计算机可执行指令，该计算机可执行指令配置为执行权利要求1-15任一项所述的多媒体广播多播业务的接收方法。 A storage medium storing computer executable instructions configured to perform the method of receiving the multimedia broadcast multicast service according to any one of claims 1-15.
PCT/CN2017/070913 2016-03-31 2017-01-11 Method for receiving multimedia broadcast multicast service, and terminal, base station and storage medium WO2017166900A1 (en)

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