WO2021259363A1 - 多播广播业务的传输方法及设备 - Google Patents

多播广播业务的传输方法及设备 Download PDF

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Publication number
WO2021259363A1
WO2021259363A1 PCT/CN2021/102133 CN2021102133W WO2021259363A1 WO 2021259363 A1 WO2021259363 A1 WO 2021259363A1 CN 2021102133 W CN2021102133 W CN 2021102133W WO 2021259363 A1 WO2021259363 A1 WO 2021259363A1
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Prior art keywords
mbs
terminal
target
network
information
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PCT/CN2021/102133
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English (en)
French (fr)
Inventor
谢芳
刘光毅
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2021259363A1 publication Critical patent/WO2021259363A1/zh

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular to a transmission method and equipment for multicast and broadcast services (Multicast and Broadcast Services, MBS).
  • MBS Multicast and Broadcast Services
  • MBS is a technology that transmits data from one data source to multiple target terminals, which realizes the sharing of network (including core network and access network) resources, and improves the utilization of network resources, especially air interface resources.
  • the MBMS service includes a single frequency network MBMS (MBMS Single Frequency Network, MBSFN) transmission method and a single cell point-to-multipoint (Single Cell Point To) transmission method.
  • MBSFN MBMS Single Frequency Network
  • SC-PTM single cell point-to-multipoint
  • PTP point-to-point
  • PTM point-to-multipoint
  • MBSFN broadcasts MBMS services synchronously in an area (multiple cells), which can save frequency resources and improve spectrum utilization. Moreover, the diversity effect brought by the multi-cell co-frequency transmission can solve problems such as blind area coverage, enhance the reliability of reception, and increase the coverage rate.
  • the SC-PTM is transmitted in a single cell through a physical downlink shared channel (PDSCH).
  • PDSCH physical downlink shared channel
  • whether MBSFN transmission mode or SC-PTM transmission mode is used is determined by the Multi-cell/Multicast Coordination Entity (MCE).
  • MCE Multi-cell/Multicast Coordination Entity
  • At least one embodiment of the present disclosure provides a multicast broadcast service transmission method and device, and provides a terminal-initiated MBS service implementation scheme, which can increase the flexibility of MBS service transmission and improve user experience with MBS services. Use experience.
  • At least one embodiment provides a method for transmitting a multicast broadcast service, including:
  • the terminal sends request information for the target MBS to the network
  • the terminal receives the indication information of the transmission mode of the target MBS sent by the network, and receives the target MBS, where the transmission mode includes point-to-multipoint PTM and/or point-to-point PTP.
  • the step of the terminal sending request information for the target MBS to the network includes:
  • the terminal When the measured network signal quality meets a pre-configured threshold, the terminal sends request information for the target MBS to the network.
  • the request information for the target MBS includes information indicating that the network signal quality or the network signal quality meets a pre-configured threshold.
  • the request information when the terminal is in an idle state or an inactive state, the request information may be sent through any of the following messages:
  • Non-access layer NAS message
  • the request information is sent through an RRC message.
  • the request information includes indication information of the target MBS
  • the indication information of the target MBS is one or more of a service identification ID of the MBS, a temporary mobility group identification TMGI, or a preamble or RO opportunity corresponding to the target MBS.
  • the request information further includes at least one of the following information: network signal quality measured by the terminal and the geographic location of the terminal.
  • the terminal receiving the indication information of the transmission mode of the target MBS service sent by the network, and the step of receiving the target MBS includes:
  • the terminal receives the first indication information and/or the second indication information from the system message, and receives the target MBS sent by the network according to the first indication information and/or the second indication information, wherein the first indication Information is used to indicate that the target MBS is sent through PTM or PTP, and the second indication information is used to indicate the time-frequency resource used when sending the target MBS; or,
  • the terminal receives the mapping relationship between the user group identifier and the target MBS sent by the network, uses the user group identifier mapped by the target MBS to obtain the target MBS resource location, and receives the network through the PTM method according to the obtained resource location The target MBS sent; or,
  • the terminal receives a paging message sent by the network or a system message used to instruct the terminal to enter the connected state, and after entering the connected state, receives the target MBS sent by the network through the PTP mode.
  • the step of receiving the target MBS sent by the network through the PTM method according to the obtained resource location includes:
  • the terminal receives the transmission beam and/or time-frequency resource information used by the target MBS sent by the network, and receives the target MBS according to the transmission beam and/or time-frequency resource information.
  • the method further includes:
  • the terminal sends at least one of the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal to the network.
  • the method further includes:
  • the terminal adjusts the receiving mode of the target MBS service according to the adjustment information of the transmission mode of the target MBS.
  • the method before the step of sending request information for the target MBS to the network, the method further includes:
  • the terminal receives service information of MBS and/or MBS being broadcast that the network can provide from the network, and the service information includes service ID, temporary mobile group identifier TMGI, time-frequency resource location, reception quality threshold, SSB identifier , At least one of the BWP logos;
  • the terminal receives resource information for requesting MBS sent by a network broadcast, and the resource information includes at least one of a bearer message requesting information, a preamble, a random access opportunity RO, and a preamble having a mapping relationship with MBS and RO A sort of.
  • the method further includes:
  • the terminal receives a handover command sent by the target base station, and the handover command carries configuration information for the target cell to send the MBS service that the terminal is interested in or is in progress, and the configuration information includes bandwidth part BWP identification information and synchronization signal block At least one of the SSB identifier, the channel state information reference signal CSI-RS identifier, and the received signal quality threshold.
  • At least one embodiment provides a multimedia broadcast multicast service MBS transmission method, including:
  • the network side device receives the request information for the target MBS sent by at least one terminal;
  • the network side device determines the transmission mode of the target MBS, sends the indication information of the target MBS transmission mode, and sends the target MBS service, where the transmission mode includes PTM and/or PTP.
  • the step of the network-side device determining the transmission mode of the target MBS includes at least one of the following:
  • the transmission mode of the target MBS is PTP.
  • the step of sending the indication information of the target MBS transmission mode includes at least one of the following:
  • the first instruction information and/or the second instruction information are sent through a system message, where the first instruction information is used to instruct the target MBS to be sent in PTM or PTP mode, and the second instruction information is used to instruct to send the The time-frequency resources used in the target MBS;
  • the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group is PTM, the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group;
  • a paging message or a system message for instructing the terminal to enter the connected state is sent to the terminal.
  • the method further includes:
  • the network side device When sending the mapping relationship between the group radio network temporary identifier G-RNTI and the target MBS, the network side device also sends the transmission beam and/or time-frequency resource information used by the target MBS.
  • the method further includes:
  • the network side device receives at least one of the indication information of the target MBS sent by the terminal, the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal;
  • the network side device adjusts the transmission mode of the target MBS, and sends instruction information for indicating the adjusted transmission mode to the receiver of the target MBS.
  • the method before the step of receiving request information for the target MBS sent by at least one terminal, the method further includes:
  • the network side device broadcasts and sends service information of the MBS that it can provide and/or the MBS being sent, and the service information includes service ID, temporary mobile group identifier TMGI, video resource location, reception quality threshold, SSB identifier, and BWP At least one of the logos;
  • the network side device sends resource information for requesting MBS, and the resource information includes at least one of a bearer message requesting information, a preamble, a random access opportunity RO, and a preamble and RO that have a mapping relationship with MBS .
  • the method further includes:
  • the network side device When the network side device is the target base station handed over by the first terminal, receiving the indication information of the MBS service that the first terminal is interested in or is in progress sent by the source base station;
  • the handover command When the network side device sends a handover command to the first terminal, the handover command carries configuration information of the target cell sending the MBS service that the terminal is interested in or is in progress, and the configuration information includes the bandwidth part BWP identification information , At least one of the synchronization signal block SSB, the channel state information reference signal CSI-RS identifier, and the received signal quality threshold.
  • At least one embodiment provides a terminal, including:
  • the sending module is used to send request information for the target MBS to the network
  • the receiving module is configured to receive the indication information of the transmission mode of the target MBS sent by the network, and receive the target MBS, wherein the transmission mode includes point-to-multipoint PTM and/or point-to-point PTP.
  • the receiving module is further configured to:
  • Receive first indication information and/or second indication information from a system message and receive the target MBS sent by the network according to the first indication information and/or second indication information, where the first indication information is used for Instruct the target MBS to be sent in PTM or PTP mode, and the second indication information is used to indicate the time-frequency resource used when sending the target MBS; or,
  • At least one embodiment provides a terminal including a transceiver and a processor, wherein
  • the transceiver is used to send request information for the target MBS to the network; and to receive the indication information of the transmission mode of the target MBS sent by the network, and to receive the target MBS, wherein the transmission mode includes broadcast, group Broadcast and unicast.
  • At least one embodiment provides a terminal including: a processor, a memory, and a program stored on the memory and running on the processor, the program being processed by the When the device is executed, the steps of the method for transmitting the MBS of the multicast broadcast service as described above are realized.
  • At least one embodiment provides a network side device, including:
  • the receiving module is configured to receive request information for the target MBS sent by at least one terminal;
  • the sending module is configured to determine the transmission mode of the target MBS, send indication information of the target MBS transmission mode, and send the target MBS service, wherein the transmission mode includes PTM and/or PTP.
  • the sending module is further configured to determine that the transmission mode of the target MBS is PTM when the number of the at least one terminal exceeds a first threshold; When the number of one terminal does not exceed the first threshold, it is determined that the transmission mode of the target MBS is PTP.
  • the sending module is further configured to send the indication information of the target MBS transmission mode according to at least one of the following methods:
  • the first instruction information and/or the second instruction information are sent through a system message, where the first instruction information is used to instruct the target MBS to be sent in PTM or PTP mode, and the second instruction information is used to instruct to send the The time-frequency resources used in the target MBS;
  • the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group is PTM, the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group;
  • a paging message or a system message for instructing the terminal to enter the connected state is sent to the terminal.
  • At least one embodiment provides a network side device, including: a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is When the processor is executed, the steps of the method for transmitting the multicast broadcast service as described above are realized.
  • At least one embodiment provides a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, it implements the method described above. step.
  • the terminal requests a certain target MBS from the network, and the network sends the target MBS in response to the request of the terminal and instructs the target MBS.
  • Transmission mode so that the terminal can receive the MBS that it expects, and realize a realization scheme of the MBS service initiated by the terminal, which can increase the flexibility of sending the MBS service and improve the user experience of the MBS service.
  • Figure 1 is a schematic diagram of a related technology MBSFN network architecture
  • Figure 2 is a schematic diagram of the structure of a related technology MBMS system
  • FIG. 3 is a schematic diagram of an application scenario of an embodiment of the disclosure.
  • FIG. 5 is a flowchart when the method for transmitting a multicast broadcast service provided by an embodiment of the disclosure is applied to the network side;
  • FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the disclosure.
  • FIG. 7 is a schematic diagram of another structure of a terminal provided by an embodiment of the disclosure.
  • FIG. 8 is a schematic structural diagram of a network side device provided by an embodiment of the disclosure.
  • FIG. 9 is a schematic diagram of another structure of a network side device provided by an embodiment of the disclosure.
  • LTE Long Time Evolution
  • LTE-A Long Time Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • OFDMA systems can implement radios such as UltraMobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 802.16 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc.
  • UMB UltraMobile Broadband
  • Evolution-UTRA Evolved UTRA
  • E-UTRA Evolved UTRA
  • IEEE 802.16 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the technology described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the following description describes the NR system for exemplary purposes, and NR terminology is used in most of the description below, although these techniques can also be applied to applications other than NR system applications.
  • the wireless communication system includes a terminal 31 and a network device 32.
  • the terminal 31 may also be referred to as a user terminal or a user equipment (UE, User Equipment), and the terminal 31 may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), or a personal digital assistant (Personal Digital Assistant).
  • PDA mobile Internet device
  • MID mobile Internet Device
  • Wearable Device wearable Device
  • vehicle-mounted device it should be noted that the specific type of terminal 31 is not limited in the embodiments of the present disclosure .
  • the network device 32 may be a base station and/or a core network element, where the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN Access point, or other access points, etc.), where the base station can be called Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node or As long as some other appropriate terminology in the field achieves the same technical effect, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is taken as an example, but not The specific
  • the base station may communicate with the terminal 31 under the control of the base station controller.
  • the base station controller may be a part of the core network or some base stations. Some base stations can communicate control information or user data with the core network through the backhaul. In some examples, some of these base stations may directly or indirectly communicate with each other through a backhaul link, which may be a wired or wireless communication link.
  • the wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can simultaneously transmit modulated signals on these multiple carriers. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (for example, reference signals, control channels, etc.), overhead information, data, and so on.
  • the base station can wirelessly communicate with the terminal 31 via one or more access point antennas. Each base station can provide communication coverage for its corresponding coverage area. The coverage area of an access point can be divided into sectors that constitute only a part of the coverage area.
  • the wireless communication system may include different types of base stations (for example, a macro base station, a micro base station, or a pico base station).
  • the base station can also utilize different radio technologies, such as cellular or WLAN radio access technologies.
  • the base stations can be associated with the same or different access networks or operator deployments.
  • the coverage areas of different base stations may overlap.
  • the communication link in the wireless communication system may include an uplink for carrying uplink (Uplink, UL) transmission (for example, from the terminal 31 to the network device 32), or for carrying a downlink (DL) Transmission (e.g., from the network device 32 to the terminal 31) downlink.
  • Uplink, UL transmission may also be referred to as reverse link transmission, and DL transmission may also be referred to as forward link transmission.
  • Downlink transmission can use licensed frequency bands, unlicensed frequency bands, or both.
  • uplink transmission can be performed using licensed frequency bands, unlicensed frequency bands, or both.
  • broadcast and multicast services are usually triggered by the network side.
  • the Broadcast Multicast Service Center (BM-SC) decides when to start and stop multicast data transmission, and in which areas to send multicast data .
  • the terminal judges the sending location and period of each MBS service according to the system information broadcasted by the network side, and then receives the MBS service that it is interested in. If the MBS service that the terminal is interested in is not broadcasting, the terminal cannot receive the service. Since the MBS service is usually triggered by the network side, the terminal cannot actively trigger the service that it is interested in. Therefore, the network may not be able to provide the terminal with the service that the user is interested in in time, which limits the promotion and application of the MBS service and affects the user experience .
  • the embodiments of the present disclosure provide a multicast broadcast service transmission method.
  • the flexibility of sending the MBS service can be improved, and the user experience of the MBS service can be improved.
  • the method for transmitting the multicast broadcast service provided by the embodiment of the present disclosure when applied to the terminal side, includes:
  • Step 41 The terminal sends request information for the target MBS to the network.
  • the request information for the target MBS may be used to request the network to send the target MBS, or may be the request information for the terminal to join the service group of the MBS.
  • the terminal may actively send request information for a certain MBS (for ease of description, referred to herein as a target MBS) to the network to request to obtain the target MBS.
  • the terminal may send the request information for the target MBS to the first network element in the network, and the first network element may be a base station or a core network device, such as SMF or AMF.
  • the terminal may send the aforementioned request information.
  • the request information includes the indication information of the target MBS, where the indication information of the target MBS may specifically include the service identifier (ID) of the MBS, the temporary mobile group identity (Temporary Mobile Group Identity, TMGI), and the relevant information.
  • ID service identifier
  • TMGI temporary mobile group identity
  • RACH occasions, RO preamble or random access opportunities
  • the request information may be sent through any of the following messages:
  • a preset preamble can be used, or a preamble that has a mapping relationship with the target MBS can be used.
  • Radio Resource Control Radio Resource Control, RRC
  • Non-Access Stratum (NAS) messages such as ULInformationTransfer, etc.
  • the request information is sent through an RRC message, such as various uplink RRC messages.
  • RRC Radio Resource Control
  • the terminal may send to the network the network signal quality obtained in step 41 for the target MBS when the measured network signal quality meets the pre-configured threshold. Request information.
  • the terminal may also carry at least one of the following information in the request information: the network signal quality measured by the terminal and the geographic location of the terminal (such as GPS information), to be provided to the network side as a determination target Reference information for MBS transmission methods.
  • the terminal may report the cell signal quality information obtained by its own measurement, such as Reference Signal Received Power (RSRP), (Reference Signal) Received Quality, RSRQ) and Signal-to-Interference and Noise Ratio (SINR), etc.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR Signal-to-Interference and Noise Ratio
  • the geographic location may be GPS information, wireless local area network/Bluetooth (WLAN/BT) measurement information, synchronization signal block/CSI reference signal (SSB/CSI-RS) identification, for example, the best quality SSB measured by the terminal /CSI-RS ID or SSB/CSI-RS ID whose quality exceeds a certain threshold.
  • WLAN/BT wireless local area network/Bluetooth
  • SSB/CSI-RS synchronization signal block/CSI reference signal
  • the terminal may also send service information of the MBS that it is interested in to the network, for example, by using a preset preamble or RO, or carrying the service ID or TMGI of interest in other messages.
  • Step 42 The terminal receives the indication information of the transmission mode of the target MBS sent by the network, and receives the target MBS, wherein the transmission mode includes PTM and/or PTP.
  • step 42 may be that the terminal receives the indication information of the target MBS transmission mode sent by a second network element in the network, and the second network element may be a base station.
  • the first network element and the second network element may be the same device, such as base stations, or different devices; for example, the first network element is a core network device, such as SMF or AMF, and the second network element is a core network device such as SMF or AMF.
  • the network element is a base station. In a scenario where the base station CU/DU is separated, the second network element may be a DU.
  • the base station determines the transmission mode of the target MBS according to the received request information sent by the terminal.
  • the transmission mode usually includes PTM and/or PTP, and then sends the indication information of the transmission mode of the target MBS to the terminal.
  • the indication information of the transmission mode is used to indicate the transmission mode of the target MBS. If the network has not sent the target MBS when receiving the request information, the network may further send the target MBS according to the determined transmission mode. In this way, the terminal can receive the indication information of the transmission mode of the target MBS sent by the network, and receive the target MBS according to the indication information of the transmission mode.
  • receiving the information of the transmission indication mode and receiving the target MBS in the foregoing step 42 may include the following methods:
  • the terminal receives first indication information and/or second indication information from a system message, and receives the target MBS sent by the network according to the first indication information and/or second indication information, wherein the first indication information One indication information is used to indicate that the target MBS is sent in a PTM or PTP manner, and the second indication information is used to indicate a time-frequency resource used when sending the target MBS.
  • the network sends the first indication information and/or the second indication information through a system message, where the first indication information is used to explicitly indicate whether the target MBS is sent through PTM or PTP, so
  • the second indication information is used to indicate the time-frequency resource used when sending the target MBS. In some scenarios, only the second indication information may be sent. In this case, the second indication information not only indicates the time-frequency resources used when sending the target MBS, but also can be used to implicitly indicate the target MBS. MBS transmission method. For example, when the time-frequency resource indicated by the second indication information is a shared resource, it indicates that the transmission is in PTM mode; when the time-frequency resource indicated by the second indication information is a dedicated resource, it indicates that it is the PTP mode. send.
  • the terminal receives the mapping relationship between the user group ID and the target MBS sent by the network, uses the user group ID mapped by the target MBS to obtain the target MBS resource location, and receives the network pass according to the obtained resource location
  • the target MBS sent in PTM mode The target MBS sent in PTM mode.
  • the terminal receives the mapping relationship between the user group identifier and the target MBS sent by the network. Since the network allocates a multicast user group identifier for the target MBS, it can be determined that the MBS transmission method is PTM. In this way, the terminal can use the user group identifier mapped by the target MBS to detect the physical downlink control channel (Physical Downlink Control CHannel, PDCCH) or the multicast control channel (Multicast Control Channel, MCCH) search space, and decode to obtain the target MBS Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) or Multicast Traffic Channel (Multicast Traffic Channel, MTCH) resource location, and receive the target MBS sent by the network through the PTM method according to the obtained resource location.
  • PDCCH Physical Downlink Control CHannel
  • MCCH Multicast Control Channel
  • the network may also send the indication information of the transmission beam and/or time-frequency resource information used by the target MBS to the terminal, so that the terminal may receive the indication information of the above-mentioned transmission beam and/or time-frequency resource information, and then according to The sending beam and/or time-frequency resource information receives the target MBS.
  • the terminal receives a paging message sent by the network or a system message used to instruct the terminal to enter the connected state, and after entering the connected state, receives the target MBS sent by the network through the PTP mode.
  • the network indicates to the terminal that the transmission mode of the target MBS is PTP through a paging message or a system message used to instruct the terminal to enter the connected state.
  • the terminal can receive the target MBS sent by the network through the PTP mode.
  • the embodiment of the present disclosure realizes that the terminal requests a certain target MBS from the network, and the network sends the target MBS in response to the terminal's request and indicates the transmission mode of the target MBS, so that the terminal can receive the desired MBS.
  • MBS implements a scheme for implementing MBS services initiated by terminals, which can increase the flexibility of MBS service transmission and improve the user experience of MBS services.
  • the terminal when it receives the target MBS, it may also measure the reception quality of the target MBS and the signal quality of the network, and then send the said terminal to the network (such as the base station). At least one feedback information of the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal. For example, the identifier of the successfully received MBS service and the evaluation information of the received quality (for example, the quality is high, medium, and low) are sent to the network.
  • the terminal may actively send the foregoing feedback information, or may send the foregoing feedback information according to the requirements of the network.
  • the above feedback information can also be further sent together with location information such as SSB ID, GPS, and WLAN/BT measurement values.
  • location information such as SSB ID, GPS, and WLAN/BT measurement values.
  • the network can understand the reception quality of the target MBS on the terminal side and other information, and help the network decide whether to change the transmission mode of the target MBS.
  • the network can determine the number and location information of the terminals receiving the MBS service based on the above feedback information, and further decide the form of sending the service next (such as determining whether to continue the original transmission mode or change the transmission mode).
  • the network when the network decides to adjust the transmission mode of the target MBS, it may send adjustment information of the transmission mode of the target MBS to the terminal, where the adjustment information is used to indicate the adjusted transmission mode.
  • the terminal receives the above adjustment information, and adjusts the receiving mode of the target MBS service accordingly.
  • the terminal may also receive service information of MBS and/or MBS being broadcast that the network can provide from the network.
  • the service information specifically includes service ID, temporary mobile group identification (TMGI) ), at least one of time-frequency resource location, reception quality threshold, SSB identifier, and bandwidth part (BWP) identifier.
  • TMGI temporary mobile group identification
  • BWP bandwidth part
  • the terminal may also receive resource information for requesting MBS sent by the network broadcast, and the resource information includes a bearer message requesting information, a preamble, a random access opportunity (RO), and a preamble and a mapping relationship with MBS. At least one of RO.
  • the terminal may send the request information in step 41 according to the foregoing resource information.
  • the terminal may also receive a handover command sent by the target base station, and the handover command carries the target cell sending information that the terminal is interested in or in progress.
  • Configuration information of the MBS service where the configuration information includes at least one of bandwidth part BWP identification information, synchronization signal block SSB identification, channel state information reference signal (CSI-RS) identification, and received signal quality threshold.
  • the terminal can be made aware of the MBS service that the target base station can provide and the reception configuration parameters of the above-mentioned service in advance.
  • the method for transmitting the multicast broadcast service may also be applied to a network-side device, and the network-side device may specifically be a base station and other devices.
  • the transmission method of the multicast broadcast service includes:
  • Step 51 The network side device receives the request information for the target MBS sent by at least one terminal.
  • the request information usually includes the indication information of the target MBS, where the indication information of the target MBS may specifically include the service identifier (ID) of the MBS, the temporary mobile group identity (Temporary Mobile Group Identity, TMGI), and One or more of a preamble or random access opportunities (RACH occasions, RO) corresponding to the target MBS.
  • ID service identifier
  • TMGI temporary mobile group identity
  • RACH occasions, RO preamble or random access opportunities
  • the request information may be sent through any of the following messages:
  • a preset preamble (preamble) can be used, or a preamble with a mapping relationship with the target MBS can be used.
  • Radio Resource Control Radio Resource Control, RRC
  • Non-Access Stratum (NAS) messages such as ULInformationTransfer, etc.
  • the request information is sent through an RRC message, such as various uplink RRC messages.
  • RRC Radio Resource Control
  • the terminal may send to the network the target MBS in step 51 when the measured network signal quality meets the pre-configured threshold. Request information.
  • the request information may also carry at least one of the following information: the network signal quality measured by the terminal and the geographic location of the terminal (such as GPS information) to be provided to the network side as a transmission method for determining the target MBS Reference information.
  • the terminal may report the cell signal quality information obtained by its own measurement, such as Reference Signal Received Power (RSRP), (Reference Signal) Received Quality, RSRQ) and Signal-to-Interference and Noise Ratio (SINR), etc.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR Signal-to-Interference and Noise Ratio
  • the geographic location may be GPS information, wireless local area network/Bluetooth (WLAN/BT) measurement information, synchronization signal block/CSI reference signal (SSB/CSI-RS) identification, for example, the best quality SSB measured by the terminal /CSI-RS ID or SSB/CSI-RS ID whose quality exceeds a certain threshold.
  • WLAN/BT wireless local area network/Bluetooth
  • SSB/CSI-RS synchronization signal block/CSI reference signal
  • the terminal may also send service information of the MBS that it is interested in to the network, for example, by using a preset preamble or RO, or carrying the service ID or TMGI of interest in other messages.
  • Step 52 The network side device determines the transmission mode of the target MBS, sends the indication information of the target MBS transmission mode, and sends the target MBS service, where the transmission mode includes PTM and/or PTP.
  • the network side device determines the transmission mode of the target MBS according to the request information for the target MBS sent by the at least one terminal, sends the indication information of the target MBS transmission mode, and sends the target MBS service,
  • determining the transmission manner of the target MBS may specifically include:
  • the network can send the target MBS in a PTM mode to save time-frequency resources.
  • the PTP mode can be used for transmission, which can reduce power consumption compared to the PTM transmission mode.
  • the step of sending the indication information of the target MBS transmission mode may include at least one of the following:
  • the network sends the first indication information and/or the second indication information through a system message.
  • the second indication information not only indicates the time-frequency resources used when sending the target MBS, but also can be used to implicitly indicate the target MBS.
  • MBS transmission method For example, when the time-frequency resource indicated by the second indication information is a shared resource, it indicates that the transmission is in PTM mode; when the time-frequency resource indicated by the second indication information is a dedicated resource, it indicates that it is the PTP mode. send.
  • the network side device may also send the transmission beam and/or time-frequency resource information used by the target MBS to the terminal to help the terminal receive the target MBS.
  • Mode c is applicable to the situation that the terminal is in an idle state or an inactive state, and the terminal is notified that the target MBS transmission mode is PTP through the above-mentioned paging message or system message.
  • the embodiment of the present disclosure realizes a scheme in which the network side sends the target MBS to the terminal according to the request of the terminal, which can improve the flexibility of sending the MBS service and improve the user experience of the MBS service.
  • the network side device may also receive the indication information of the target MBS, the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal sent by the terminal. At least one kind of feedback information in the location; then, the network-side device adjusts the transmission mode of the target MBS according to the received at least one kind of feedback information, and sends the target MBS receiver to indicate the adjusted Instructions for the transmission method. For example, the network side device can determine the number and location information of the terminals receiving the MBS service based on the above feedback information, and further decide the form of sending the service next (such as determining whether to continue the original transmission mode or change the transmission mode).
  • the network-side device may also broadcast the service information of the MBS that it can provide and/or the MBS being sent.
  • the service information includes service ID, temporary mobile group identification TMGI, and video At least one of resource location, reception quality threshold, SSB identifier, and BWP identifier, so that the terminal can learn the MBS information that the network can provide.
  • the network-side device may also send resource information for requesting MBS.
  • the resource information includes the bearer message of the request information, the preamble, the random access opportunity RO, and the communication with the MBS. At least one of a preamble and RO in a mapping relationship.
  • the terminal may send request information according to the above resource information, and the network side device receives the request information sent by the terminal on the resource corresponding to the above resource information.
  • the network-side device when the network-side device is the target base station of a terminal (for ease of description, referred to herein as the first terminal) handover, the network-side device receives the first terminal's information sent by the source base station. Indication information of the MBS service that the terminal is interested in or in progress; when the network side device sends a handover command to the first terminal, it may carry the target cell in the handover command to send the MBS service that the terminal is interested in or in progress
  • the configuration information includes at least one of the bandwidth part BWP identification information, the synchronization signal block SSB, the channel state information reference signal CSI-RS identification, and the received signal quality threshold. In this way, the first terminal can be in the handover process Obtain MBS and MBS reception configuration information that the network side device can provide.
  • an embodiment of the present disclosure provides a terminal 60, including:
  • the sending module 61 is used to send request information for the target MBS to the network;
  • the receiving module 62 is configured to receive the indication information of the transmission mode of the target MBS sent by the network, and receive the target MBS, wherein the transmission mode includes point-to-multipoint PTM and/or point-to-point PTP.
  • the sending module is further configured to send request information for the target MBS to the network when the measured network signal quality meets a pre-configured threshold.
  • the request information may be sent through any of the following messages:
  • Non-access layer NAS message
  • the request information is sent through an RRC message.
  • the request information includes indication information of the target MBS
  • the indication information of the target MBS is one or more of a service identification ID of the MBS, a temporary mobility group identification TMGI, or a preamble or RO opportunity corresponding to the target MBS.
  • the request information further includes at least one of the following information: network signal quality measured by the terminal and the geographic location of the terminal.
  • the receiving module is further used for:
  • Receive first indication information and/or second indication information from a system message and receive the target MBS sent by the network according to the first indication information and/or second indication information, where the first indication information is used for Instruct the target MBS to be sent in PTM or PTP mode, and the second indication information is used to indicate the time-frequency resource used when sending the target MBS; or,
  • the receiving module is further configured to receive the transmission beam and/or time frequency used by the target MBS sent by the network when receiving the target MBS sent by the network in the PTM mode according to the obtained resource location Resource information, receiving the target MBS according to the transmission beam and/or time-frequency resource information.
  • the sending module is further configured to send at least one of the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal to the network.
  • the receiving module is further configured to receive adjustment information of the transmission mode of the target MBS sent by the network, where the adjustment information is used to indicate the adjusted transmission mode; according to the adjustment of the transmission mode of the target MBS Information, adjust the receiving mode of the target MBS service.
  • the receiving module is further configured to receive service information of MBS that can be provided by the network and/or MBS being broadcasted by the network before sending the request information for the target MBS to the network, the service information Including at least one of a service ID, a temporary mobile group identifier TMGI, a time-frequency resource location, a reception quality threshold, an SSB identifier, and a BWP identifier; and/or, the terminal receives resource information for requesting MBS sent by the network broadcast,
  • the resource information includes at least one of a bearer message requesting information, a preamble, a random access opportunity RO, and a preamble and RO that have a mapping relationship with MBS.
  • the receiving module is further configured to receive a handover command sent by the target base station, where the handover command carries configuration information of the target cell sending the MBS service that the terminal is interested in or is in progress, and the configuration information includes At least one of bandwidth part BWP identification information, synchronization signal block SSB identification, channel state information reference signal CSI-RS identification, and received signal quality threshold.
  • the terminal in this embodiment is a device corresponding to the method shown in FIG. 4 above, and the implementation manners in the above embodiments are all applicable to the embodiments of the device, and the same technical effects can also be achieved.
  • the foregoing terminal provided by the embodiment of the present disclosure can implement all the method steps implemented in the foregoing method embodiment, and can achieve the same technical effect.
  • the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be detailed here. Go into details.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • the terminal 700 includes a processor 701, a transceiver 702, a memory 703, a user interface 704, and a bus interface.
  • the terminal 700 further includes: a program stored in the memory 703 and capable of running on the processor 701.
  • the processor 701 implements the following steps when executing the program:
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 701 and various circuits of the memory represented by the memory 703 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 702 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 704 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 can store data used by the processor 701 when performing operations.
  • the terminal in this embodiment is a terminal corresponding to the method shown in FIG. 4, and the implementation manners in the above embodiments are all applicable to the embodiment of the terminal, and the same technical effect can also be achieved.
  • the transceiver 702 and the memory 703, and the transceiver 702 and the processor 701 can all be connected through a bus interface.
  • the functions of the processor 701 can also be implemented by the transceiver 702, and the functions of the transceiver 702 can also be implemented by the processor. 701 realized.
  • the above-mentioned terminal provided by the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. Therefore, this embodiment is not the same as the method embodiment. The part and beneficial effects of this will be described in detail.
  • a computer-readable storage medium on which a program is stored, and the program is executed by a processor to implement the following steps:
  • the program When the program is executed by the processor, it can realize all the implementation modes in the transmission method of the multicast broadcast service applied to the terminal side, and can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.
  • the embodiment of the present disclosure provides a network side device 80 shown in FIG. 8, including:
  • the receiving module 81 is configured to receive request information for the target MBS sent by at least one terminal;
  • the sending module 82 is configured to determine the transmission mode of the target MBS, send indication information of the target MBS transmission mode, and send the target MBS service, wherein the transmission mode includes PTM and/or PTP.
  • the sending module is further configured to determine that the transmission mode of the target MBS is PTM when the number of the at least one terminal exceeds a first threshold; and when the number of the at least one terminal does not exceed all When the first threshold is used, it is determined that the transmission mode of the target MBS is PTP.
  • the sending module is further configured to send the indication information of the target MBS transmission mode according to at least one of the following methods:
  • the first indication information and/or the second indication information are sent through a system message, where the first indication information is used to instruct the target MBS to be sent in PTM or PTP mode, and the second indication information is used to instruct to send the The time-frequency resources used in the target MBS;
  • the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group is PTM, the mapping relationship between the G-RNTI and the target MBS of the temporary wireless network identifier of the sending group;
  • a paging message or a system message for instructing the terminal to enter the connected state is sent to the terminal.
  • the sending module is further configured to send the sending beam and/or time-frequency resource information used by the target MBS when sending the mapping relationship between the group radio network temporary identifier G-RNTI and the target MBS .
  • the receiving module is further configured to receive at least one of the indication information of the target MBS sent by the terminal, the reception quality information of the target MBS, the network signal quality measured by the terminal, and the geographic location of the terminal A kind of information
  • the adjustment module is configured to adjust the transmission mode of the target MBS, and send instruction information for indicating the adjusted transmission mode to the recipient of the target MBS.
  • the sending module is further configured to: before receiving the request information for the target MBS sent by at least one terminal: the service information of the MBS that it can provide and/or the MBS being sent by the broadcast transmission, the service information Including at least one of a service ID, a temporary mobile group identifier TMGI, a video resource location, a reception quality threshold, an SSB identifier, and a BWP identifier; and/or, the network side device sends resource information for requesting MBS, and the resource The information includes at least one of a bearer message requesting information, a preamble, a random access opportunity RO, and a preamble and RO that have a mapping relationship with the MBS.
  • the service information of the MBS that it can provide and/or the MBS being sent by the broadcast transmission
  • the service information Including at least one of a service ID, a temporary mobile group identifier TMGI, a video resource location, a reception quality threshold, an SSB identifier, and a BWP
  • the receiving module is further configured to, when the network side device itself is the target base station handed over by the first terminal, receive the indication information of the MBS service that the first terminal is interested in or is in progress sent by the source base station ;
  • the sending module is further configured to, when sending a handover command to the first terminal, carry in the handover command configuration information of the target cell sending the MBS service that the terminal is interested in or is in progress, and the configuration information includes a bandwidth part At least one of BWP identification information, synchronization signal block SSB, channel state information reference signal CSI-RS identification, and received signal quality threshold.
  • the device in this embodiment is a device corresponding to the method shown in FIG. 5, and the implementation manners in the foregoing embodiments are all applicable to the embodiments of the device, and the same technical effects can also be achieved. It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can realize all the method steps realized by the above-mentioned method embodiment and can achieve the same technical effect. Therefore, this embodiment is no longer the same as the method embodiment. The part and beneficial effects of this will be described in detail.
  • an embodiment of the present disclosure provides a schematic structural diagram of a network side device 900, including: a processor 901, a transceiver 902, a memory 903, and a bus interface, where:
  • the network side device 900 further includes: a program stored in the memory 903 and capable of running on the processor 901, and the program is executed by the processor 901 to implement the following steps:
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 903 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 902 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 901 when performing operations.
  • the network-side device in this embodiment is a device corresponding to the method shown in FIG. Technical effect.
  • the transceiver 902 and the memory 903, as well as the transceiver 902 and the processor 901 can be connected through a bus interface.
  • the function of the processor 901 can also be realized by the transceiver 902, and the function of the transceiver 902 can also be realized by the processor. 901 realized.
  • the above-mentioned network-side equipment provided in the embodiments of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiments, and can achieve the same technical effects. The same parts and beneficial effects of the examples will be described in detail.
  • a computer-readable storage medium on which a program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the program When the program is executed by the processor, it can realize all the implementation modes in the transmission method of the multicast broadcast service applied to the network side device, and can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present disclosure.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

一种多播广播业务的传输方法及设备，该方法包括终端向网络发送针对目标MBS的请求信息；所述终端接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。

Description

多播广播业务的传输方法及设备
相关申请的交叉引用
本申请主张在2020年6月24日在中国提交的中国专利申请号No.202010591106.9的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及移动通信技术领域，具体涉及一种多播广播业务(Multicast and Broadcast Services，MBS)的传输方法及设备。
背景技术
MBS是一种从一个数据源向多个目标终端传输数据的技术，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、尤其是空口资源利用率。
以LTE系统中的多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)为例，MBMS业务有单频网络MBMS(MBMS Single Frequency Network，MBSFN)传输方式和单小区点到多点(Single Cell Point To Multipoint，SC-PTM)两种方式。在NR系统中，MBS业务有点到点(Point To Point，PTP)和点到多点(Point To Multipoint，PTM)方式。
如图1所示，MBSFN在一片区域内(多个小区)同步广播MBMS业务，可以节约频率资源，提高频谱利用率。而且这种多小区同频传输所带来的分集效果可以解决盲区覆盖等问题，增强接收的可靠性，提高覆盖率。而SC-PTM在单个小区通过物理下行共享信道(Physical downlink shared channel，PDSCH)传输。如图2所示，具体采用MBSFN传输方式还是SC-PTM传输方式，由多小区/多播协调实体(Multi-cell/multicast Coordination Entity，MCE)决定。
发明内容
本公开的至少一个实施例提供了一种多播广播业务的传输方法及设备， 提供了一种由终端发起的MBS业务的实现方案，可以提高MBS业务发送的灵活性，改善用户对MBS业务的使用体验。
根据本公开的一个方面，至少一个实施例提供了一种多播广播业务的传输方法，包括：
终端向网络发送针对目标MBS的请求信息；
所述终端接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
此外，根据本公开的至少一个实施例，所述终端向网络发送针对所述目标MBS的请求信息的步骤，包括：
所述终端在测量得到的网络信号质量满足预配置门限的情况下，向网络发送针对所述目标MBS的请求信息。
此外，所述针对所述目标MBS的请求信息包括网络信号质量或网络信号质量满足预配置门限的指示信息。
此外，根据本公开的至少一个实施例，在所述终端处于空闲态或非激活态时，所述请求信息可以通过以下任一消息发送：
4步随机接入过程中的消息1或消息3；
2步随机接入过程中的消息A；
RRC连接建立请求消息；
RRC连接恢复请求消息；
非接入层NAS消息；
在所述终端处于连接态时，所述请求信息通过RRC消息发送。
此外，根据本公开的至少一个实施例，所述请求信息包括所述目标MBS的指示信息；
其中，所述目标MBS的指示信息为所述MBS的业务标识ID、临时移动组标识TMGI或与所述目标MBS对应的前导码或RO机会中的一种或多种。
此外，根据本公开的至少一个实施例，所述请求信息还包括以下信息中的至少一种：终端测量得到的网络信号质量和终端的地理位置。
此外，根据本公开的至少一个实施例，所述终端接收网络发送的所述目标MBS业务的传输方式的指示信息，接收所述目标MBS的步骤，包括：
所述终端从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；或者，
所述终端接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS；或者，
所述终端接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
此外，根据本公开的至少一个实施例，所述根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS的步骤，包括：
所述终端接收网络发送的所述目标MBS所使用的发送波束和/或时频资源信息，根据所述发送波束和/或时频资源信息，接收所述目标MBS。
此外，根据本公开的至少一个实施例，在接收所述目标MBS的步骤之后，所述方法还包括：
所述终端向网络发送所述目标MBS的接收质量信息、终端测量得到的网络信号质量和终端的地理位置中的至少一种。
此外，根据本公开的至少一个实施例，所述方法还包括：
所述终端接收网络发送的所述目标MBS的传输方式的调整信息，所述调整信息用于指示调整后的传输方式；
所述终端根据所述目标MBS的传输方式的调整信息，调整所述目标MBS业务的接收方式。
此外，根据本公开的至少一个实施例，在向网络发送针对目标MBS的请求信息的步骤之前，所述方法还包括：
所述终端接收网络发送的所述网络可以提供的MBS和/或正在广播的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、时频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；
和/或，
所述终端接收网络广播发送的用于请求MBS的资源信息，所述资源信息 包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
此外，根据本公开的至少一个实施例，所述方法还包括：
所述终端接收目标基站发送的切换命令，所述切换命令中携带有目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB标识、信道状态信息参考信号CSI-RS标识和接收信号质量门限中的至少一种。
根据本公开的另一方面，至少一个实施例提供了一种多媒体广播多播业务MBS的传输方法，包括：
网络侧设备接收至少一个终端发送的针对目标MBS的请求信息；
所述网络侧设备确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
此外，根据本公开的至少一个实施例，所述网络侧设备确定所述目标MBS的传输方式的步骤，包括以下至少一项：
在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM；
在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
此外，根据本公开的至少一个实施例，所述发送所述目标MBS传输方式的指示信息的步骤，包括以下至少一项：
通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；
在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系；
在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
此外，根据本公开的至少一个实施例，所述方法还包括：
在发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系时，所述网络侧设备还发送所述目标MBS所使用的发送波束和/或时频资源信息。
此外，根据本公开的至少一个实施例，所述方法还包括：
网络侧设备接收终端发送的所述目标MBS的指示信息、所述目标MBS的接收质量信息、所述终端测量得到的网络信号质量和终端的地理位置中的至少一种信息；
网络侧设备调整所述目标MBS的传输方式，并向所述目标MBS的接收者发送用于指示调整后的传输方式的指示信息。
此外，根据本公开的至少一个实施例，在接收至少一个终端发送的针对目标MBS的请求信息的步骤之前，所述方法还包括：
所述网络侧设备广播发送的自身可以提供的MBS和/或正在发送的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、视频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；
和/或，
所述网络侧设备发送用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
此外，根据本公开的至少一个实施例，所述方法还包括：
所述网络侧设备在自身为第一终端切换的目标基站时，接收源基站发送的所述第一终端的端感兴趣或正在进行的MBS业务的指示信息；
所述网络侧设备在向所述第一终端发送切换命令时，在切换命令中携带目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB、信道状态信息参考信号CSI-RS的标识和接收信号质量门限中的至少一种。
根据本公开的另一方面，至少一个实施例提供了一种终端，包括：
发送模块，用于向网络发送针对目标MBS的请求信息；
接收模块，用于接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
此外，根据本公开的至少一个实施例，所述接收模块，还用于：
从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；或者，
接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS；或者，
接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
根据本公开的另一方面，至少一个实施例提供了一种终端，包括收发机和处理器，其中，
所述收发机，用于向网络发送针对目标MBS的请求信息；以及，接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括广播、组播和单播。
根据本公开的另一方面，至少一个实施例提供了一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如上所述的多播广播业务MBS的传输方法的步骤。
根据本公开的另一方面，至少一个实施例提供了一种网络侧设备，包括：
接收模块，用于接收至少一个终端发送的针对目标MBS的请求信息；
发送模块，用于确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
此外，根据本公开的至少一个实施例，所述发送模块，还用于在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM；在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
此外，根据本公开的至少一个实施例，所述发送模块，还用于按照以下方式中的至少一项，发送所述目标MBS传输方式的指示信息：
通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；
在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系；
在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
根据本公开的另一方面，至少一个实施例提供了一种网络侧设备，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如上所述的多播广播业务的传输方法的步骤。
根据本公开的另一方面，至少一个实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时，实现如上所述的方法的步骤。
与相关技术相比，本公开实施例提供的多播广播业务的传输方法及设备，由终端向网络请求某个目标MBS，网络响应于终端的请求发送所述目标MBS并指示所述目标MBS的传输方式，从而终端可以接收到其所期望的MBS，实现了一种由终端发起的MBS业务的实现方案，可以提高MBS业务发送的灵活性，改善用户对MBS业务的使用体验。
附图说明
通过阅读下文可选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的，而并不认为是对本公开的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为相关技术的MBSFN的网络架构示意图；
图2为相关技术的MBMS系统的结构示意图；
图3为本公开实施例的一种应用场景示意图；
图4为本公开实施例提供的多播广播业务的传输方法应用于终端侧时的流程图；
图5为本公开实施例提供的多播广播业务的传输方法应用于网络侧时的流程图；
图6为本公开实施例提供的终端的一种结构示意图；
图7为本公开实施例提供的终端的另一种结构示意图；
图8为本公开实施例提供的网络侧设备的一种结构示意图；
图9为本公开实施例提供的网络侧设备的另一种结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“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。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于NR系统以及长期演进型(Long Time Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入 (Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(UltraMobile Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE 802.21(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
请参见图3，图3示出本公开实施例可应用的一种无线通信系统的框图。无线通信系统包括终端31和网络设备32。其中，终端31也可以称作用户终端或用户设备(UE，User Equipment)，终端31可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本公开实施例中并不限定终端31的具体类型。网络设备32可以是基站和/或核心网网元，其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其 他接入点等)，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本公开实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
基站可在基站控制器的控制下与终端31通信，在各种示例中，基站控制器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中，这些基站中的一些可以通过回程链路直接或间接地彼此通信，回程链路可以是有线或无线通信链路。无线通信系统可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如，每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如，参考信号、控制信道等)、开销信息、数据等。
基站可经由一个或多个接入点天线与终端31进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信系统可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术，诸如蜂窝或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信系统中的通信链路可包括用于承载上行链路(Uplink，UL)传输(例如，从终端31到网络设备32)的上行链路，或用于承载下行链路(Downlink，DL)传输(例如，从网络设备32到终端31)的下行链路。UL传输还可被称为反向链路传输，而DL传输还可被称为前向链路传输。下行链路传输可以使用授权频段、非授权频段或这两者来进行。类似地，上行链路传输可以使用有授权频段、非授权频段或这两者来进行。
相关技术中，广播多播业务通常都是网络侧触发的，广播多播业务中心(Broadcast Multicast Service Center，BM-SC)决定何时开启、终止多播数据发送,以及在哪些区域发送多播数据。终端根据网络侧广播的系统信息判断各MBS业务的发送位置、周期等信息，然后去接收自己感兴趣的MBS业务。如果终端感兴趣的MBS业务不在广播，则终端无法接收该业务。由于MBS业务通常由网络侧触发，终端不能主动触发自己感兴趣的业务，因此网络可能无法及时的向终端提供用户感兴趣的业务，从而限制了MBS业务的推广和应用，影响了用户的使用体验。
为了解决以上问题中的至少一种，本公开实施例提供了一种多播广播业务的传输方法，通过由终端触发MBS业务，可以提高MBS业务发送的灵活性，改善用户对MBS业务的使用体验。
参照图4，本公开实施例提供的多播广播业务的传输方法，应用于终端侧时，包括：
步骤41，终端向网络发送针对目标MBS的请求信息。
在一些实施中，所述针对目标MBS的请求信息可以用于请求网络发送目标MBS，也可以是终端加入该MBS的业务组的请求信息。
这里，终端可以主动向网络发送对某个MBS(为了便于描述，这里称之为目标MBS)的请求信息，用于请求获取目标MBS。在一些实施例中，终端可以向网络中的第一网元发送所述针对目标MBS的请求信息，所述第一网元可以为基站或核心网设备、如SMF或AMF。例如，所述终端对目标MBS感兴趣，希望接收目标MBS，则所述终端可以发送上述请求信息。所述请求信息包括所述目标MBS的指示信息，其中，所述目标MBS的指示信息具体可以包括所述MBS的业务标识(ID)、临时移动组标识(Temporary Mobile Group Identity，TMGI)和与所述目标MBS对应的前导码或随机接入机会(RACH occasions，RO)中的一种或多种。
具体的，在所述终端处于空闲态(idle)或非激活态(inactive)时，所述请求信息可以通过以下任一消息发送：
a)4步随机接入过程中的消息1或消息3，在通过上述消息1发送时，可以采用预设的前导码(preamble)，或者采用与目标MBS有映射关系的前 导码。
b)2步随机接入过程中的消息A。
c)无线资源控制(Radio Resource Control，RRC)连接建立请求消息。
d)RRC连接恢复请求(RRC Resume)消息。
e)非接入层(Non-Access Stratum，NAS)消息，如ULInformationTransfer等。
而在所述终端处于无线资源控制(Radio Resource Control，RRC)连接态时，所述请求信息通过RRC消息发送，例如各种上行的RRC消息。
在网络侧预先配置了接收MBS的网络信号质量的门限的情况下，所述终端可以在测量得到的网络信号质量满足预配置门限的情况下，向网络发送上述步骤41中的针对所述目标MBS的请求信息。
可选的，所述终端还可以在所述请求信息中携带以下信息中的至少一种：终端测量得到的网络信号质量和终端的地理位置(如GPS信息)，以提供给网络侧作为确定目标MBS的传输方式的参考信息。例如，在网络侧没有配置接收MBS的网络信号质量的门限的情况下，所述终端可以上报自己测量得到的小区信号质量信息，如参考信号接收功率(Reference Signal Received Power，RSRP)、(Reference Signal Received Quality，RSRQ)和信号与干扰加噪声比(Signal-to-Interference and Noise Ratio，SINR)等。所述地理位置可以是GPS信息、无线局域网/蓝牙(WLAN/BT)测量信息、同步信号块/CSI参考信号(SSB/CSI-RS)标识，例如，所述终端测量到的质量最好的SSB/CSI-RS标识或质量超过一定门限的SSB/CSI-RS标识。
可选的，所述终端还可以向网络发送自己感兴趣的MBS的业务信息，例如，通过预设的前导码或RO，或者在其他消息中携带感兴趣的业务ID或TMGI。
步骤42，所述终端接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括PTM和/或PTP。
这里，步骤42可以是所述终端接收网络中的第二网元发送的所述目标MBS的传输方式的指示信息，所述第二网元可以是基站。
在一些实施例中，第一网元和第二网元可以为同一个设备，如都是基站， 也可以为不同的设备；如第一网元是核心网设备、如SMF或AMF，第二网元是基站。在基站CU/DU分离的场景下，第二网元可以是DU。
这里，基站根据接收到的终端发送的上述请求信息，确定所述目标MBS的传输方式，所述传输方式通常包括PTM和/或PTP，然后，向终端发送所述目标MBS的传输方式的指示信息。所述传输方式的指示信息用于指示所述目标MBS的传输方式。如果网络在接收到上述请求信息时尚未发送所述目标MBS，则网络还可以进一步按照所确定的传输方式发送所述目标MBS。这样，终端可以接收网络发送的所述目标MBS的传输方式的指示信息，并根据所述传输方式的指示信息，接收所述目标MBS。
具体的，上述步骤42中接收所述传输指示方式的信息以及接收目标MBS，可以包括以下几种方式：
1)所述终端从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源。
该方式中，网络通过系统消息发送所述第一指示信息和/或第二指示信息，其中，所述第一指示信息用于显式指示所述目标MBS是通过PTM还是通过PTP方式发送，所述第二指示信息则用于指示发送所述目标MBS时所使用的时频资源。在某些场景下，也可以仅发送所述第二指示信息，此时所述第二指示信息不但指示发送所述目标MBS时所使用的时频资源，还可以用于隐式指示所述目标MBS的传输方式。例如，在所述第二指示信息所指示的时频资源为共享资源时，则表明是PTM方式发送；在所述第二指示信息所指示的时频资源为专用资源时，则表明是PTP方式发送。
2)所述终端接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS。
该方式中，终端接收网络发送的用户组标识与所述目标MBS的映射关系，由于网络为目标MBS分配了组播的用户组标识，从而可以确定所述MBS的传输方式为PTM。这样，所述终端可以使用目标MBS映射的用户组标识， 检测物理下行控制信道(Physical Downlink Control CHannel，PDCCH)或多播控制信道(MultiCast Control Channel，MCCH)搜索空间，解码获得所述目标MBS在物理下行共享信道(Physical Downlink Shared CHannel，PDSCH)或多播业务信道(Multicast Traffic Channel，MTCH)上的资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS。
更进一步的，网络还可以向终端发送所述目标MBS所使用的发送波束和/或时频资源信息的指示信息，从而终端可以接收上述发送波束和/或时频资源信息的指示信息，然后根据所述发送波束和/或时频资源信息，接收所述目标MBS。
3)所述终端接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
该方式中，网络通过寻呼消息或用于指示终端进入连接态的系统消息，向终端指示所述目标MBS的传输方式为PTP，这样，在终端根据上述寻呼消息或系统消息进入连接态之后，终端可以接收网络通过PTP方式发送的所述目标MBS。
通过以上步骤，本公开实施例实现了由终端向网络请求某个目标MBS，网络响应于终端的请求发送所述目标MBS并指示所述目标MBS的传输方式，从而终端可以接收到其所期望的MBS，实现了一种由终端发起的MBS业务的实现方案，可以提高MBS业务发送的灵活性，改善用户对MBS业务的使用体验。
根据本公开的至少一个实施例，在上述步骤42之后，所述终端在接收目标MBS时，还可以测量所述目标MBS的接收质量以及网络的信号质量，然后向网络(如基站)发送所述目标MBS的接收质量信息、终端测量得到的网络信号质量和终端的地理位置中的至少一种反馈信息。例如，向网络发送成功接收的MBS业务的标识以及接收质量的评价信息(如质量为高、中和低)。终端可以主动发送上述反馈信息，可以是根据网络的要求发送上述反馈信息。上述反馈信息也可进一步与SSB ID、GPS、WLAN/BT测量值等位置信息一起发送。通过发送上述信息，可以使得网络了解目标MBS在终端侧的接收质量等信息，帮助网络决策是否需要改变目标MBS的传输方式。网络可以根据 上述反馈信息，判断在接收该MBS业务的终端数量和位置信息，进一步决定接下来发送该业务的形式(如判断是否继续原来的传输方式还是改变传输方式)。
例如，在网络决定调整所述目标MBS的传输方式时，可以向终端发送所述目标MBS的传输方式的调整信息，所述调整信息用于指示调整后的传输方式。这样，终端接收上述调整信息，并据此调整所述目标MBS业务的接收方式。
另外，在上述步骤41之前，所述终端还可以接收网络发送的所述网络可以提供的MBS和/或正在广播的MBS的业务信息，所述业务信息具体包括业务ID、临时移动组标识(TMGI)、时频资源位置、接收质量门限、SSB标识、带宽部分(BWP)标识中的至少一种。这样，终端可以根据网络发送的上述业务信息，获知网络能够提供的MBS业务。
所述终端还可以接收网络广播发送的用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会(RO)、以及与MBS有映射关系的前导码和RO中的至少一种。这样，在步骤41中，所述终端可以根据上述资源信息发送步骤41中的请求信息。
根据本公开的另一些实施例，所述终端在切换到目标基站的过程中，还可以接收目标基站发送的切换命令，所述切换命令中携带有目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB标识、信道状态信息参考信号(CSI-RS)标识和接收信号质量门限中的至少一种。通过上述切换命令，可以提前使得终端获知目标基站能够提供的MBS业务以及上述业务的接收配置参数。
以上从终端侧介绍了本公开实施例的MBS的传输方法，下面进一步从网络侧对本公开实施例的方法进行说明。
请参照图5，本公开实施例提供的多播广播业务的传输方法，还可以应用于网络侧设备，该网络侧设备具体可以是基站等设备。如图5所示，该多播广播业务的传输方法包括：
步骤51，网络侧设备接收至少一个终端发送的针对目标MBS的请求信息。
这里，网络中可能有一个或多个终端请求同一个目标MBS。所述请求信息通常包括所述目标MBS的指示信息，其中，所述目标MBS的指示信息具体可以包括所述MBS的业务标识(ID)、临时移动组标识(Temporary Mobile Group Identity，TMGI)和与所述目标MBS对应的前导码或随机接入机会(RACH occasions，RO)中的一种或多种。
另外，在所述终端处于空闲态(idle)或非激活态(inactive)时，所述请求信息可以通过以下任一消息发送：
a)4步随机接入过程中的消息1或消息3，在通过上述消息1发送时，可以采用预设的前导码(preamble)，或者采用与目标MBS有映射关系的前导码。
b)2步随机接入过程中的消息A。
c)无线资源控制(Radio Resource Control，RRC)连接建立请求消息。
d)RRC连接恢复请求(RRC Resume)消息。
e)非接入层(Non-Access Stratum，NAS)消息，如ULInformationTransfer等。
而在所述终端处于无线资源控制(Radio Resource Control，RRC)连接态时，所述请求信息通过RRC消息发送，例如各种上行的RRC消息。
在网络侧预先配置了接收MBS的网络信号质量的门限的情况下，所述终端可以在测量得到的网络信号质量满足预配置门限的情况下，向网络发送上述步骤51中的针对所述目标MBS的请求信息。
可选的，所述请求信息中还可以携带以下信息中的至少一种：终端测量得到的网络信号质量和终端的地理位置(如GPS信息)，以提供给网络侧作为确定目标MBS的传输方式的参考信息。例如，在网络侧没有配置接收MBS的网络信号质量的门限的情况下，所述终端可以上报自己测量得到的小区信号质量信息，如参考信号接收功率(Reference Signal Received Power，RSRP)、(Reference Signal Received Quality，RSRQ)和信号与干扰加噪声比(Signal-to-Interference and Noise Ratio，SINR)等。所述地理位置可以是GPS信息、无线局域网/蓝牙(WLAN/BT)测量信息、同步信号块/CSI参考信号(SSB/CSI-RS)标识，例如，所述终端测量到的质量最好的SSB/CSI-RS标识或质量超 过一定门限的SSB/CSI-RS标识。
可选的，所述终端还可以向网络发送自己感兴趣的MBS的业务信息，例如，通过预设的前导码或RO，或者在其他消息中携带感兴趣的业务ID或TMGI。
步骤52，所述网络侧设备确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
这里，网络侧设备根据所述至少一个终端发送的针对目标MBS的请求信息，确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，
作为一种实现方式，确定所述目标MBS的传输方式具体可以包括：
1)在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM。
例如，有多个终端请求了所述目标MBS，它们之间的距离相对较远，此时网络可以通过PTM方式发送所述目标MBS，以节约时频资源。
2)在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
在请求所述目标MBS的终端数量较少时，可以采用PTP方式进行发送，相对于PTM发送方式，可以减少功耗。
根据本公开的至少一个实施例，所述发送所述目标MBS传输方式的指示信息的步骤，可以包括以下至少一项：
a)通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源。
该方式a中，网络通过系统消息发送所述第一指示信息和/或第二指示信息。在某些场景下，也可以仅发送所述第二指示信息，此时所述第二指示信息不但指示发送所述目标MBS时所使用的时频资源，还可以用于隐式指示所述目标MBS的传输方式。例如，在所述第二指示信息所指示的时频资源为共享资源时，则表明是PTM方式发送；在所述第二指示信息所指示的时频资源 为专用资源时，则表明是PTP方式发送。
b)在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系。
这里，发送方式b中映射关系时，网络侧设备还可以向终端发送所述目标MBS所使用的发送波束和/或时频资源信息，以帮助终端接收所述目标MBS。
c)在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
方式c适用于终端处于空闲态或非激活态的情况下，通过上述寻呼消息或系统消息，通知终端所述目标MBS传输方式为PTP。
通过以上步骤，本公开实施例实现了网络侧根据终端的请求，向终端发送目标MBS的方案，可以提高MBS业务发送的灵活性，改善用户对MBS业务的使用体验。
根据本公开的至少一个实施例，所述网络侧设备还可以接收终端发送的所述目标MBS的指示信息、所述目标MBS的接收质量信息、所述终端测量得到的网络信号质量和终端的地理位置中的至少一种反馈信息；然后，网络侧设备根据接收到的上述至少一种反馈信息，调整所述目标MBS的传输方式，并向所述目标MBS的接收者发送用于指示调整后的传输方式的指示信息。例如，网络侧设备可以根据上述反馈信息，判断在接收该MBS业务的终端数量和位置信息，进一步决定接下来发送该业务的形式(如判断是否继续原来的传输方式还是改变传输方式)。
另外，在接收步骤51的请求信息之前，网络侧设备还可以广播发送的自身可以提供的MBS和/或正在发送的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、视频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种，从而使得终端获知网络能够提供的MBS的信息。
可选的，在接收步骤51的请求信息之前，网络侧设备还可以发送用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。这样，在步骤51中，终端可以根据上述资源信息发送请求信息，网络侧设备在上述 资源信息对应的资源上接收终端发送的请求信息。
根据本公开的至少一个实施例，所述网络侧设备在自身为某个终端(为了便于描述，这里称之为第一终端)切换的目标基站时，接收源基站发送的所述第一终端的端感兴趣或正在进行的MBS业务的指示信息；所述网络侧设备在向所述第一终端发送切换命令时，可以在切换命令中携带目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB、信道状态信息参考信号CSI-RS的标识和接收信号质量门限中的至少一种，这样，第一终端可以在切换过程中获得网络侧设备能够提供的MBS以及MBS接收配置信息。
以上介绍了本公开实施例的各种方法。下面将进一步提供实施上述方法的装置。
请参照图6，本公开实施例提供了一种终端60，包括：
发送模块61，用于向网络发送针对目标MBS的请求信息；
接收模块62，用于接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
可选的，所述发送模块，还用于终端在测量得到的网络信号质量满足预配置门限的情况下，向网络发送针对所述目标MBS的请求信息。
可选的，在所述终端处于空闲态或非激活态时，所述请求信息可以通过以下任一消息发送：
4步随机接入过程中的消息1或消息3；
2步随机接入过程中的消息A；
RRC连接建立请求消息；
RRC连接恢复请求消息；
非接入层NAS消息；
在所述终端处于连接态时，所述请求信息通过RRC消息发送。
可选的，所述请求信息包括所述目标MBS的指示信息；
其中，所述目标MBS的指示信息为所述MBS的业务标识ID、临时移动组标识TMGI或与所述目标MBS对应的前导码或RO机会中的一种或多种。
可选的，所述请求信息还包括以下信息中的至少一种：终端测量得到的网络信号质量和终端的地理位置。
可选的，所述接收模块，还用于：
从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；或者，
接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS；或者，
接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
可选的，所述接收模块，还用于在根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS时，接收网络发送的所述目标MBS所使用的发送波束和/或时频资源信息，根据所述发送波束和/或时频资源信息，接收所述目标MBS。
可选的，所述发送模块，还用于向网络发送所述目标MBS的接收质量信息、终端测量得到的网络信号质量和终端的地理位置中的至少一种。
可选的，所述接收模块，还用于接收网络发送的所述目标MBS的传输方式的调整信息，所述调整信息用于指示调整后的传输方式；根据所述目标MBS的传输方式的调整信息，调整所述目标MBS业务的接收方式。
可选的，所述接收模块，还用于在向网络发送针对目标MBS的请求信息之前，接收网络发送的所述网络可以提供的MBS和/或正在广播的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、时频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；和/或，所述终端接收网络广播发送的用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
可选的，所述接收模块，还用于接收目标基站发送的切换命令，所述切 换命令中携带有目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB标识、信道状态信息参考信号CSI-RS标识和接收信号质量门限中的至少一种。
需要说明的是，该实施例中的终端是与上述图4所示的方法对应的装置，上述各实施例中的实现方式均适用于该装置的实施例中，也能达到相同的技术效果。本公开实施例提供的上述终端，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
请参照图7，本公开实施例提供的终端的一种结构示意图，该终端700包括：处理器701、收发机702、存储器703、用户接口704和总线接口。
在本公开实施例中，终端700还包括：存储在存储器上703并可在处理器701上运行的程序。
所述处理器701执行所述程序时实现以下步骤：
向网络发送针对目标MBS的请求信息；
接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
可理解的，本公开实施例中，所述计算机程序被处理器701执行时可实现上述图3所示的多播广播业务的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器701代表的一个或多个处理器和存储器703代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机702可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口704还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器701负责管理总线架构和通常的处理，存储器703可以存储处理器701在执行操作时所使用的数据。
需要说明的是，该实施例中的终端是与上述图4所示的方法对应的终端，上述各实施例中的实现方式均适用于该终端的实施例中，也能达到相同的技术效果。该终端中，收发机702与存储器703，以及收发机702与处理器701均可以通过总线接口通讯连接，处理器701的功能也可以由收发机702实现，收发机702的功能也可以由处理器701实现。在此需要说明的是，本公开实施例提供的上述终端，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
在本公开的一些实施例中，还提供了一种计算机可读存储介质，其上存储有程序，该程序被处理器执行时实现以下步骤：
向网络发送针对目标MBS的请求信息；
接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
该程序被处理器执行时能实现上述应用于终端侧的多播广播业务的传输方法中的所有实现方式，且能达到相同的技术效果，为避免重复，此处不再赘述。
本公开实施例提供了图8所示的一种网络侧设备80，包括：
接收模块81，用于接收至少一个终端发送的针对目标MBS的请求信息；
发送模块82，用于确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
可选的，所述发送模块，还用于在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM；在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
可选的，所述发送模块，还用于按照以下方式中的至少一项，发送所述目标MBS传输方式的指示信息：
通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；
在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系；
在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
可选的，所述发送模块，还用于在发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系时，还发送所述目标MBS所使用的发送波束和/或时频资源信息。
可选的，所述接收模块，还用于接收终端发送的所述目标MBS的指示信息、所述目标MBS的接收质量信息、所述终端测量得到的网络信号质量和终端的地理位置中的至少一种信息；
调整模块，用于调整所述目标MBS的传输方式，并向所述目标MBS的接收者发送用于指示调整后的传输方式的指示信息。
可选的，所述发送模块，还用于在接收至少一个终端发送的针对目标MBS的请求信息之前：广播发送的自身可以提供的MBS和/或正在发送的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、视频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；和/或，所述网络侧设备发送用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
可选的，所述接收模块，还用于在网络侧设备自身为第一终端切换的目标基站时，接收源基站发送的所述第一终端的端感兴趣或正在进行的MBS业务的指示信息；
所述发送模块，还用于在向所述第一终端发送切换命令时，在切换命令中携带目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB、信道状态信息参考信号CSI-RS的标识和接收信号质量门限中的至少一种。
需要说明的是，该实施例中的装置是与上述图5所示的方法对应的装置，上述各实施例中的实现方式均适用于该装置的实施例中，也能达到相同的技术效果。在此需要说明的是，本公开实施例提供的上述装置，能够实现上述 方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
请参考图9，本公开实施例提供了网络侧设备900的一结构示意图，包括：处理器901、收发机902、存储器903和总线接口，其中：
在本公开实施例中，网络侧设备900还包括：存储在存储器上903并可在处理器901上运行的程序，所述程序被处理器901执行时实现如下步骤：
接收至少一个终端发送的针对目标MBS的请求信息；
确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
可理解的，本公开实施例中，所述计算机程序被处理器901执行时可实现上述图5所示的多播广播业务的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器901代表的一个或多个处理器和存储器903代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。
处理器901负责管理总线架构和通常的处理，存储器903可以存储处理器901在执行操作时所使用的数据。
需要说明的是，该实施例中的网络侧设备是与上述图5所示的方法对应的设备，上述各实施例中的实现方式均适用于该网络侧设备的实施例中，也能达到相同的技术效果。该终端中，收发机902与存储器903，以及收发机902与处理器901均可以通过总线接口通讯连接，处理器901的功能也可以由收发机902实现，收发机902的功能也可以由处理器901实现。在此需要说明的是，本公开实施例提供的上述网络侧设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
在本公开的一些实施例中，还提供了一种计算机可读存储介质，其上存 储有程序，该程序被处理器执行时实现以下步骤：
接收至少一个终端发送的针对目标MBS的请求信息；
确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
该程序被处理器执行时能实现上述应用于网络侧设备的多播广播业务的传输方法中的所有实现方式，且能达到相同的技术效果，为避免重复，此处不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
例如，各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
本公开的说明书和权利要求书中的术语“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。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开的实施例，例如除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B和/或C，表示包含单独A，单独B，单独C，以及A和B都存在，B和C都存在，A和C都存在，以及A、B和C都存在的7种情况。类似地，本说明书以及权利要求中使用“A和B中的至少一个”应理解为“单独A，单独B，或A和B都存在”。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述的方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限 于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (29)

  1. 一种多播广播业务MBS的传输方法，包括：
    终端向网络发送针对目标MBS的请求信息；
    所述终端接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
  2. 如权利要求1所述的方法，其中，所述终端向网络发送针对所述目标MBS的请求信息的步骤，包括：
    所述终端在测量得到的网络信号质量满足预配置门限的情况下，向网络发送针对所述目标MBS的请求信息。
  3. 如权利要求2所述的方法，其中，所述针对所述目标MBS的请求信息包括网络信号质量或网络信号质量满足预配置门限的指示信息。
  4. 如权利要求1所述的方法，其中，
    在所述终端处于空闲态或非激活态时，所述请求信息可以通过以下任一消息发送：
    4步随机接入过程中的消息1或消息3；
    2步随机接入过程中的消息A；
    RRC连接建立请求消息；
    RRC连接恢复请求消息；
    非接入层NAS消息；
    在所述终端处于连接态时，所述请求信息通过RRC消息发送。
  5. 如权利要求1所述的方法，其中，
    所述请求信息包括所述目标MBS的指示信息；
    其中，所述目标MBS的指示信息为所述MBS的业务标识ID、临时移动组标识TMGI或与所述目标MBS对应的前导码或RO机会中的一种或多种。
  6. 如权利要求5所述的方法，其中，所述请求信息还包括以下信息中的至少一种：终端测量得到的网络信号质量和终端的地理位置。
  7. 如权利要求1所述的方法，其中，所述终端接收网络发送的所述目标MBS业务的传输方式的指示信息，接收所述目标MBS的步骤，包括：
    所述终端从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；或者，
    所述终端接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS；或者，
    所述终端接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
  8. 如权利要求7所述的方法，其中，所述根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS的步骤，包括：
    所述终端接收网络发送的所述目标MBS所使用的发送波束和/或时频资源信息，根据所述发送波束和/或时频资源信息，接收所述目标MBS。
  9. 如权利要求1所述的方法，其中，在接收所述目标MBS的步骤之后，所述方法还包括：
    所述终端向网络发送所述目标MBS的接收质量信息、终端测量得到的网络信号质量和终端的地理位置中的至少一种。
  10. 如权利要求1至9任一项所述的方法，还包括：
    所述终端接收网络发送的所述目标MBS的传输方式的调整信息，所述调整信息用于指示调整后的传输方式；
    所述终端根据所述目标MBS的传输方式的调整信息，调整所述目标MBS业务的接收方式。
  11. 如权利要求1所述的方法，其中，在向网络发送针对目标MBS的请求信息的步骤之前，所述方法还包括：
    所述终端接收网络发送的所述网络可以提供的MBS和/或正在广播的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、时频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；
    和/或，
    所述终端接收网络广播发送的用于请求MBS的资源信息，所述资源信息 包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
  12. 如权利要求1所述的方法，还包括：
    所述终端接收目标基站发送的切换命令，所述切换命令中携带有目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB标识、信道状态信息参考信号CSI-RS标识和接收信号质量门限中的至少一种。
  13. 一种多媒体广播多播业务MBS的传输方法，包括：
    网络侧设备接收至少一个终端发送的针对目标MBS的请求信息；
    所述网络侧设备确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
  14. 如权利要求13所述的方法，其中，所述网络侧设备确定所述目标MBS的传输方式的步骤，包括以下至少一项：
    在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM；
    在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
  15. 如权利要求14所述的方法，其中，所述发送所述目标MBS传输方式的指示信息的步骤，包括以下至少一项：
    通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；
    在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系；
    在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
  16. 如权利要求14所述的方法，还包括：
    在发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系时，所 述网络侧设备还发送所述目标MBS所使用的发送波束和/或时频资源信息。
  17. 如权利要求13所述的方法，还包括：
    网络侧设备接收终端发送的所述目标MBS的指示信息、所述目标MBS的接收质量信息、所述终端测量得到的网络信号质量和终端的地理位置中的至少一种信息；
    网络侧设备调整所述目标MBS的传输方式，并向所述目标MBS的接收者发送用于指示调整后的传输方式的指示信息。
  18. 如权利要求13所述的方法，其中，在接收至少一个终端发送的针对目标MBS的请求信息的步骤之前，所述方法还包括：
    所述网络侧设备广播发送的自身可以提供的MBS和/或正在发送的MBS的业务信息，所述业务信息包括业务ID、临时移动组标识TMGI、视频资源位置、接收质量门限、SSB标识、BWP标识中的至少一种；
    和/或，
    所述网络侧设备发送用于请求MBS的资源信息，所述资源信息包括请求信息的承载消息、前导码、随机接入机会RO、以及与MBS有映射关系的前导码和RO中的至少一种。
  19. 如权利要求13所述的方法，还包括：
    所述网络侧设备在自身为第一终端切换的目标基站时，接收源基站发送的所述第一终端的端感兴趣或正在进行的MBS业务的指示信息；
    所述网络侧设备在向所述第一终端发送切换命令时，在切换命令中携带目标小区发送所述终端感兴趣或正在进行的MBS业务的配置信息，所述配置信息包括带宽部分BWP标识信息、同步信号块SSB、信道状态信息参考信号CSI-RS的标识和接收信号质量门限中的至少一种。
  20. 一种终端，包括：
    发送模块，用于向网络发送针对目标MBS的请求信息；
    接收模块，用于接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括点到多点PTM和/或点到点PTP。
  21. 如权利要求20所述的终端，其中，
    所述接收模块，还用于：
    从系统消息中接收第一指示信息和/或第二指示信息，根据所述第一指示信息和/或第二指示信息接收网络发送的所述目标MBS，其中，所述第一指示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；或者，
    接收网络发送的用户组标识与所述目标MBS的映射关系，利用所述目标MBS映射的用户组标识，获得所述目标MBS资源位置，并根据所获得的资源位置接收网络通过PTM方式发送的所述目标MBS；或者，
    接收网络发送的寻呼消息或用于指示终端进入连接态的系统消息，并在进入连接态后接收网络通过PTP方式发送的所述目标MBS。
  22. 一种终端，包括收发机和处理器，其中，
    所述收发机，用于向网络发送针对目标MBS的请求信息；以及，接收网络发送的所述目标MBS的传输方式的指示信息，接收所述目标MBS，其中，所述传输方式包括广播、组播和单播。
  23. 一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至12任一项所述的多播广播业务MBS的传输方法的步骤。
  24. 一种网络侧设备，包括：
    接收模块，用于接收至少一个终端发送的针对目标MBS的请求信息；
    发送模块，用于确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
  25. 如权利要求24所述的网络侧设备，其中，
    所述发送模块，还用于在所述至少一个终端的数量超过第一门限的情况下，确定所述目标MBS的传输方式为PTM；在所述至少一个终端的数量未超过所述第一门限时，确定所述目标MBS的传输方式为PTP。
  26. 如权利要求24所述的网络侧设备，其中，
    所述发送模块，还用于按照以下方式中的至少一项，发送所述目标MBS传输方式的指示信息：
    通过系统消息发送第一指示信息和/或第二指示信息，其中，所述第一指 示信息用于指示所述目标MBS通过PTM或PTP方式发送，所述第二指示信息用于指示发送所述目标MBS时所使用的时频资源；
    在所述目标MBS传输方式为PTM时，发送组无线网络临时标识G-RNTI与所述目标MBS的映射关系；
    在所述目标MBS传输方式为PTP时，向所述终端发送寻呼消息或用于指示终端进入连接态的系统消息。
  27. 一种网络侧设备，包括收发机和处理器，其中，
    所述收发机，用于接收至少一个终端发送的针对目标MBS的请求信息；
    所述处理器，用于确定所述目标MBS的传输方式，发送所述目标MBS传输方式的指示信息，并发送所述目标MBS业务，其中，所述传输方式包括PTM和/或PTP。
  28. 一种网络侧设备，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求13至19任一项所述的多播广播业务MBS的传输方法的步骤。
  29. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至19任一项所述的多播广播业务MBS的传输方法的步骤。
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