WO2022052841A1 - 组播业务处理方法及装置 - Google Patents

组播业务处理方法及装置 Download PDF

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Publication number
WO2022052841A1
WO2022052841A1 PCT/CN2021/115830 CN2021115830W WO2022052841A1 WO 2022052841 A1 WO2022052841 A1 WO 2022052841A1 CN 2021115830 W CN2021115830 W CN 2021115830W WO 2022052841 A1 WO2022052841 A1 WO 2022052841A1
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WIPO (PCT)
Prior art keywords
terminal
information
multicast service
multicast
service
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PCT/CN2021/115830
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English (en)
French (fr)
Inventor
辛婷玉
李秉肇
陈磊
于海凤
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华为技术有限公司
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Publication of WO2022052841A1 publication Critical patent/WO2022052841A1/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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and device for processing multicast services.
  • a terminal for example, a user equipment (User Equipment, UE), a tablet computer (pad), etc.
  • the access network equipment to which the at least two cells belong may be used to provide services for the terminal.
  • Multicast services for example, Multimedia Broadcast Multicast Service (MBMS), Multicast Broadcast Service (MBS), etc.
  • MBMS Multimedia Broadcast Multicast Service
  • MMS Multicast Broadcast Service
  • SC-PTM Single Cell Point to Multi-point
  • SC-PTM technology is a technology that uses shared data information to transmit the same service to multiple terminals at the same time, and SC-PTM technology only involves single-cell multicast Service transmission does not involve the transmission of multicast services between base stations.
  • Multimedia Broadcast Multicast Service Single Frequency Network MBSFN
  • MBSFN Multimedia Broadcast Multicast Service Single Frequency Network
  • MBSFN requires multiple cells to transmit multicast services synchronously, and there is no problem of co-covering multiple cells or multiple access network devices. Therefore, the SC-PTM technology and the MBSFN technology are not suitable for multicast service transmission in the communication network composed of at least two access network devices corresponding to the above-mentioned at least two cells.
  • the embodiment of the present application discloses a method and device for processing multicast services, which can transmit multicast services cooperatively through multiple devices, improve the transmission efficiency and spectrum utilization rate of multicast services, save communication resources and energy, and improve multicast services at the same time. improve the communication quality and improve the user experience.
  • an embodiment of the present application discloses a method for processing a multicast service, including: a first device receives information of a first terminal from a second device, the second device includes at least one cell and is used to transmit a multicast service, The first terminal is served by at least one cell, and the first terminal includes at least one terminal receiving the multicast service and/or at least one terminal interested in the multicast service; the first device sends the first indication information to the second device, and the first terminal An indication information is used to instruct the first device or the third device to transmit the multicast service, and the third device is an access network device and is used to transmit the multicast service.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the information of the first terminal is used to indicate the number of at least one terminal included in the first terminal;
  • the sending of the first indication information by the first device to the second device specifically includes: if the first condition is satisfied, the first The device sends the first indication information to the second device, and the first condition includes that the number of at least one terminal is greater than or equal to the first threshold; and/or the first condition includes that the first terminal is served by each cell included by the second device.
  • the number of terminals is less than or equal to the second threshold; and/or the second device includes at least one access network device, and the first condition includes that the number of at least one access network device is greater than or equal to the third threshold.
  • the first device is a multicast control unit
  • the method further includes: the first device sends second indication information to the third device, where the second indication information is used to instruct the third device to transmit the multicast service, and/or the second device stops transmitting the multicast service.
  • the third device can cooperate with the second device to transmit the multicast service through the second instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • the embodiment of the present application discloses another method for processing multicast services, including: a first device receives information of a second terminal, the second terminal is served by a third device, and the second terminal includes receiving information from a third device At least one terminal of the multicast service, and/or at least one terminal interested in the multicast service, the third device is an access network device and is used to transmit the multicast service; the first device sends a third indication to the second device information, the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service, the second device includes at least one cell and is used to transmit the multicast service .
  • the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the information of the second terminal is used to indicate the number of at least one terminal included in the second terminal; the first device sends third indication information to the second device, specifically including: if the second condition is satisfied, the first A device sends third indication information to the second device, and the second condition includes that the number of at least one terminal is less than or equal to the fourth threshold; and/or the second condition includes that at least one terminal of the second terminal served by the second device The number is greater than or equal to the fifth threshold; and/or the second device includes at least one access network device, and the second condition includes that the number of at least one access network device is less than or equal to the sixth threshold.
  • sending the third indication information to the second device when the second condition is satisfied can improve the accuracy of sending the third indication information.
  • the first device is a multicast control unit
  • the method further includes: the first device sends fourth indication information to the third device, where the fourth indication information is used to instruct the third device to stop transmitting the multicast service , and/or the second device transmits the multicast service.
  • the third device can cooperate with the second device to transmit the multicast service through the fourth indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the first device is a third device
  • receiving the information of the second terminal by the first device includes: the first device receiving information of the third terminal from the second terminal, and the third terminal is included in the second terminal. at least one terminal; and/or the first device receives information of a fourth terminal from the second device, where the fourth terminal is a terminal other than the third terminal among at least one terminal included in the second terminal.
  • the first device is a third device
  • the method further includes: the first device sends sixth indication information, and the sixth indication information uses Instructing the sixth terminal to reselect to the second device, the sixth terminal is located within the coverage of the second device and the third device, and receives and/or is interested in the multicast service.
  • the sixth terminal is reselected to the second device based on the sixth indication information, and can receive the multicast service transmitted by the second device, which avoids interruption of the multicast service and facilitates the improvement of service quality.
  • an embodiment of the present application discloses another method for processing a multicast service, including: a second device sends information of the first terminal to a first device, where the second device includes at least one cell and is used to transmit a multicast service , the first terminal is served by at least one cell, and the first terminal includes at least one terminal receiving multicast services, and/or at least one terminal interested in multicast services; the second device receives the first indication information from the first device , the first indication information is used to instruct the first device or the third device to transmit the multicast service, and the third device is an access network device and is used to transmit the multicast service.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the method further includes: the second device sends fifth indication information, where the fifth indication information is used to instruct the fifth terminal to reselect to
  • the third device and the fifth terminal are located within the coverage of the second device and the third device, and receive and/or are interested in the multicast service.
  • the fifth terminal is reselected to the third device based on the fifth indication information, and can receive the multicast service transmitted by the third device, which avoids interruption of the multicast service and facilitates the improvement of service quality.
  • an embodiment of the present application discloses another method for processing multicast services, including: the second device receives third indication information from the first device, where the third indication information is used to instruct the first device or the third device to stop transmission Multicast service, and/or, instructing the second device to transmit the multicast service, the third indication information is received after the first device receives the information of the second terminal, the second device includes at least one cell, and is used for transmission multicast service, the third device is an access network device and is used to transmit the multicast service, the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/ Or at least one terminal interested in multicast services.
  • the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the first device is a third device
  • the information of the second terminal includes information of the third terminal sent by the second terminal to the first device, and/or information sent by the second device to the first device Information of the fourth terminal, where the third terminal is at least one terminal included in the second terminal, and the fourth terminal is a terminal other than the third terminal among the at least one terminal included in the second terminal.
  • an embodiment of the present application discloses a communication device, where the communication device is a first device, and includes: a receiving unit configured to receive information of the first terminal from a second device, the second device including at least one cell, and For transmitting the multicast service, the first terminal is served by at least one cell, and the first terminal includes at least one terminal that receives the multicast service, and/or at least one terminal that is interested in the multicast service; the sending unit is used to send The second device sends first indication information, where the first indication information is used to instruct the first device or the third device to transmit the multicast service, and the third device is an access network device and is used to transmit the multicast service.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the information of the first terminal is used to indicate the number of at least one terminal included in the first terminal; the sending unit is specifically configured to, if the first condition is satisfied, send the first indication information to the second device,
  • the first condition includes that the number of at least one terminal is greater than or equal to the first threshold; and/or the first condition includes that the number of first terminals located within the coverage of each cell in the at least one cell included in the second device is less than or equal to equal to the second threshold; and/or the first condition includes that the number of at least one access network device included in the second device is greater than or equal to the third threshold.
  • the first device is a multicast control unit
  • the sending unit is further configured to send second indication information to the third device, where the second indication information is used to instruct the third device to transmit the multicast service, and/or The second device stops transmitting the multicast service.
  • the third device can cooperate with the second device to transmit the multicast service through the second instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • an embodiment of the present application discloses another communication apparatus, the communication apparatus is a first device, and includes: a receiving unit configured to receive information of a second terminal, the second terminal is served by the third device, and the second terminal is The terminal includes at least one terminal that receives the multicast service from a third device, and/or at least one terminal that is interested in the multicast service, where the third device is an access network device and is used to transmit the multicast service; The device sends third indication information, where the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service, the second device includes at least one cell, and uses the for transmitting multicast services.
  • the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the information of the second terminal is used to indicate the number of at least one terminal included in the second terminal; the sending unit is specifically configured to send third indication information to the second device if the second condition is satisfied, and the second The condition includes that the number of at least one terminal is less than or equal to the fourth threshold; and/or the second condition includes that the number of second terminals located within the coverage of at least one cell included by the second device is greater than or equal to the fifth threshold; and/ Or the second condition includes that the number of at least one access network device included in the second device is less than or equal to the sixth threshold.
  • sending the third indication information to the second device when the second condition is satisfied can improve the accuracy of sending the third indication information.
  • the first device is a multicast control unit
  • the sending unit is further configured to send fourth indication information to the third device, where the fourth indication information is used to instruct the third device to stop transmitting the multicast service, and/ Or the second device transmits the multicast service.
  • the third device can cooperate with the second device to transmit the multicast service through the fourth indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the first device is a third device
  • the receiving unit is specifically configured to receive information of the third terminal from the second terminal, where the third terminal is at least one terminal included in the second terminal; and/or from the second terminal
  • the second device receives the information of the fourth terminal, where the fourth terminal is a terminal other than the third terminal in at least one terminal included in the second terminal.
  • the first device is a third device
  • the sending unit is further configured to send sixth indication information, where the sixth indication information is used to instruct the sixth terminal to reselect to the second device, and the sixth terminal is located in the second
  • the device is within the coverage of the device and the third device, and receives and/or is interested in multicast services.
  • the sixth terminal is reselected to the second device based on the sixth indication information, and can receive the multicast service transmitted by the second device, which avoids interruption of the multicast service and facilitates the improvement of service quality.
  • an embodiment of the present application discloses yet another communication device, the communication device is a second device, and includes: a sending unit configured to send information of the first terminal to the first device, where the second device includes at least one cell, And for transmitting multicast service, the first terminal is served by at least one cell, and the first terminal includes at least one terminal receiving multicast service, and/or at least one terminal interested in multicast service; the receiving unit is used for receiving The first device receives the first indication information, where the first indication information is used to instruct the first device or the third device to transmit the multicast service, and the third device is an access network device and is used to transmit the multicast service.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the sending unit is further configured to send fifth indication information, where the fifth indication information is used to instruct the fifth terminal to reselect to the third device, and the fifth terminal is located in the coverage area of the second device and the third device and receive multicast services and/or are interested in multicast services.
  • the fifth terminal is reselected to the third device based on the fifth indication information, and can receive the multicast service transmitted by the third device, which avoids interruption of the multicast service and facilitates the improvement of service quality.
  • an embodiment of the present application discloses yet another communication device, the communication device is a second device, and includes: a receiving unit configured to receive third indication information from the first device, where the third indication information is used to indicate the first device The device or the third device stops transmitting the multicast service, and/or instructs the second device to transmit the multicast service, the third indication information is received after the first device receives the information of the second terminal, and the second device includes at least One cell is used to transmit multicast services, the third device is an access network device and is used to transmit multicast services, the second terminal is served by the third device, and the second terminal includes receiving multicast services from the third device and/or at least one terminal interested in multicast services.
  • the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • the first device is a third device
  • the information of the second terminal includes information of the third terminal sent by the second terminal to the first device, and/or information sent by the second device to the first device Information of the fourth terminal, where the third terminal is at least one terminal included in the second terminal, and the fourth terminal is a terminal other than the third terminal among the at least one terminal included in the second terminal.
  • the first indication information includes the first time information, the first time information It is used to instruct the first device or the third device to start transmitting the multicast service, and/or the first time information is used to instruct the second device to stop transmitting the multicast service.
  • the first time information indicates the time when the third device starts to transmit the multicast service, and/or the time when the second device stops transmitting the service, so that the interruption of the multicast service can be avoided and the service quality can be improved.
  • the information of the first terminal includes at least one of the following: the first Service identification information of a multicast service of a terminal; location information of the first terminal; channel state information of the first terminal.
  • the number of first terminals under different limited conditions can be obtained through the above information of different first terminals, which can facilitate the improvement of transmission efficiency and spectrum utilization rate of multicast services, save communication resources and energy, and ensure the quality of multicast services. Improve user experience.
  • the coverage of the third device includes the coverage of the second device.
  • the second device and the third device can separately or jointly provide wireless communication services for the same terminal, which improves the flexibility of access network equipment and service deployment, improves spectrum utilization, and improves network coverage. , to increase network capacity.
  • the third indication information includes second time information, and the second time information is used to indicate the first The time when the device or the third device stops transmitting the multicast service, and/or the second time information is used to indicate the time when the second device starts transmitting the multicast service.
  • the third time information indicates the time when the second device starts to transmit the multicast service, and/or the time when the third device stops transmitting the multicast service, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • the information of the second terminal includes at least one of the following: multicast of the second terminal Service identification information of the service; location information of the second terminal; channel state information of the second terminal.
  • multicast of the second terminal Service identification information of the service includes at least one of the following: multicast of the second terminal Service identification information of the service; location information of the second terminal; channel state information of the second terminal.
  • the sixth indication information may include any one or more of the following: identification information of the second device; The configuration information of the multicast service; the second configuration information of the frequency point priority of the third device and the second device; the instruction information of the third device to stop transmitting the multicast service.
  • the sixth terminal can be reselected to the second device based on the above different sixth indication information, which can improve the accuracy of the reselection.
  • the fifth indication information may include any one or more of the following: identification information of the third device; The configuration information of the multicast service; the first configuration information of the frequency point priority of the third device and the second device; the instruction information of the second device to stop transmitting the multicast service.
  • the fifth terminal can be reselected to the third device based on the above different fifth indication information, which can improve the accuracy of the reselection.
  • the present application provides a communication device, comprising a processor, and the processor is coupled to a memory, wherein the memory is used to store one or more programs, and the programs are executed by the processor to implement any of the above aspects or possible examples Methods.
  • the present application provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which, when executed on a computer, cause the computer to perform the method of any of the above aspects or possible examples.
  • the present application provides a computer program product, where the computer program product is used to store a computer program, and when the computer program is run on a computer, causes the computer to execute the method of any one of the above-mentioned aspects.
  • the present application provides a chip, including a processor, configured to call and execute instructions stored in the memory from a memory, so that a terminal device installed with the chip executes the method of any one of the above aspects or possible examples.
  • the present application provides another chip, which can be a chip in a first device or a second device, and the chip includes: an input interface, an output interface, and a processing circuit. connected by an internal connection path, the processing circuit is configured to execute the method of any of the above aspects or possible examples.
  • the present application provides another chip, including: an input interface, an output interface, and a processor, and optionally, a memory, and the input interface, the output interface, the processor, and the memory are connected through an internal connection path , the processor is used to execute the code in the memory, and when the code is executed, the processor is used to execute the method in any of the above aspects or possible examples.
  • an embodiment of the present application provides a communication system, including the first device and the second device in any of the foregoing aspects or possible examples.
  • the second device and/or the third device respectively acquires information about terminals within its coverage that are receiving multicast services and/or interested in multicast services, and then instruct the second device and/or
  • the third device transmits the indication information of the multicast service, and cooperatively transmits the multicast service, which improves the transmission efficiency and spectrum utilization of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an SC-PTM transmission mode provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of MBMS service counting provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a first method for processing a multicast service provided by an embodiment of the present application
  • FIG. 6 is a schematic flowchart of a second method for processing multicast services provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a third multicast service processing method provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a fourth method for processing multicast services provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a fifth multicast service processing method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a scenario of ABS subframe transmission provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a scenario of time-frequency resource division provided by an embodiment of the present application.
  • FIG. 12 is a schematic flowchart of a sixth method for processing a multicast service provided by an embodiment of the present application.
  • FIG. 13 is a schematic flowchart of a seventh method for processing multicast services provided by an embodiment of the present application.
  • FIG. 14 is a schematic flowchart of an eighth multicast service processing method provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application, where the communication system includes at least one terminal (for example, terminal 101, terminal 102, terminal 103, terminal 104, terminal 105), at least one terminal Access network equipment (eg, access network equipment 111, access network equipment 112, access network equipment 121, access network equipment 122).
  • terminal 101 for example, terminal 101, terminal 102, terminal 103, terminal 104, terminal 105
  • terminal Access network equipment eg, access network equipment 111, access network equipment 112, access network equipment 121, access network equipment 122).
  • the communication system in the embodiment of the present application may include a Global System for Mobile Communications (GSM) system corresponding to the second-generation mobile communication technology, a system between the second-generation mobile communication technology and the third-generation mobile communication technology General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA) system corresponding to the third generation mobile communication technology (The3rd Generation Telecommunication, 3G), Wideband Code Division Multiple Access (Wideband Code) Division Multiple Access (WCDMA) system, Universal Mobile Telecommunication System (UMTS), Long Term Evolution (LTE) system corresponding to the fourth generation mobile communication technology, and new air interface corresponding to the fifth generation mobile communication technology Technology (New Radio, NR) system and other current communication systems, and, applied to future communication systems.
  • GSM Global System for Mobile Communications
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • UMTS Universal Mobile Telecommunication System
  • LTE Long Term Evolution
  • New Radio, NR fifth generation mobile communication technology Technology
  • the terminal in this embodiment of the present application may be a device that provides voice or data connectivity to a user, and the terminal may be referred to as a user equipment (User Equipment, UE), a mobile station (mobile station), a subscriber unit (subscriber unit), a station (station), terminal equipment (Terminal Equipment, TE), etc.
  • the terminal can be a cellular phone, a personal digital assistant (PDA), a wireless modem, a handheld device, a laptop computer, a cordless phone, Wireless local loop (Wireless Local Loop, WLL) station, mobile phone (mobile phone), tablet computer (pad), etc.
  • PDA personal digital assistant
  • WLL Wireless Local Loop
  • a device that can access a wireless communication network, communicate with a wireless network side, or communicate with other objects through a wireless network can be a terminal in the embodiments of the present application.
  • Terminals can be statically fixed or mobile.
  • the terminal is a mobile phone.
  • the access network device in this embodiment of the present application may be a base station (Base Station, BS) or a base station controller for wireless communication.
  • the access network equipment is a device deployed in a wireless access network to provide wireless communication functions for terminals. Its main functions include: management of wireless resources, compression of Internet Protocol (IP) headers, and user data Encryption of streams, selection of Mobile Management Entity (MME) when user equipment is attached, routing of user plane data to Service Gateway (SGW), organization and transmission of paging messages, organization and transmission of broadcast messages , configuration of measurements and measurement reports for mobility or scheduling purposes, etc.
  • IP Internet Protocol
  • SGW Service Gateway
  • the names of access network devices with base station functions may be different.
  • the name base station may change.
  • the base station may include various forms of macro base station, micro base station, femto base station, home base station, relay node (Access Point, AP), access point and so on.
  • access network equipment for the convenience of description, in the embodiments of the present application, the above-mentioned apparatuses for providing a wireless communication function for a terminal are collectively referred to as access network equipment.
  • the access network device is a base station.
  • the access network device includes at least one cell, which can be understood as one or more cells exist under the access network device.
  • the area where the cell provides services to the terminal can be called the coverage of the cell, and the area corresponding to the coverage of all cells under the access network equipment can be called the coverage of the access network equipment.
  • the coverage of the device is the area where the access network device provides services for the terminal.
  • the third device may be an access network device, a base station, a macro base station, a High Power High Tower (HPHT), etc.
  • the second device may be an access network device, a base station, a micro base station, a femto base station, or a home base station and relay nodes, etc.
  • the second device has the characteristics of small coverage and low transmit power.
  • the third device has the characteristics of wide coverage and high transmit power.
  • the cell radius of the third device is several tens of kilometers.
  • the application does not limit the form of the second device and the third device. It should be noted that the number of the second device and the third device may be one or more. Exemplarily, the embodiments of the present application are described with one third device and one or more second devices, and the third device is described as an access network device.
  • both the second device and the third device include at least one cell, and at least one cell between the second device and the third device has the same coverage.
  • the coverage of the third device includes the coverage of the second device. That is, the coverage area between the third device and the second device is the same, or the coverage area of the third device is larger than that of the second device.
  • a terminal located within the coverage of a cell under the second device can be served by the cell or by a cell in the third device that has the same coverage as the cell, so that the third device and the second device can be the same terminal Provides wireless communication capabilities.
  • the second device and the third device can provide wireless communication services for the same terminal separately or jointly, which improves the flexibility of access network equipment and service deployment, improves spectrum utilization, improves network coverage, and improves network capacity.
  • the coverage of a cell included under the access network device 111 is the location corresponding to the area D1
  • the coverage of another cell that may also be included under the access network device 111 is the coverage area corresponding to the area D2.
  • area D1 includes area D3 and area D4.
  • the location corresponding to area D3 is the coverage area of multiple cells included in the access network device 121
  • the location corresponding to area D4 is the coverage area of multiple cells included under the access network 122 .
  • the coverage of the access network device 111 is greater than the coverage of each access network device in the access network device 121 and the access network device 122 , and the access network device 111 , the access network device 121 and the access network device 122 The cells between each access network device have the same coverage. If the access network device 111 is the third device, and the access network device 121 and the access network device 122 are both the second devices, the terminal 101 and the terminal 102 located in the range of the area D1 and the area D3 can pass the access network
  • the device 121 is served by at least one cell corresponding to the area D3, and may also be served by the cell corresponding to the area D1 through the access network device 111.
  • Terminals 103 and 104 located within the range of area D1 and area D4 may be served by at least one cell corresponding to area D4 through access network device 122, or may be served by a cell corresponding to area D1 through access network device 111.
  • Access network equipment and terminals can be deployed on land, for example, indoors or outdoors, hand-held or vehicle-mounted, and so on. Access network equipment and terminals can also be deployed on water, as well as on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the application scenarios of the access network device and the terminal.
  • the access network equipment and the terminal, the access network equipment and the access network equipment, and the terminal and the terminal can communicate through the licensed spectrum (licensed spectrum) or communicate through the unlicensed spectrum (unlicensed spectrum). , it is also possible to communicate over both licensed and unlicensed spectrum.
  • the embodiments of the present application do not limit the spectrum resources used between the access network device and the terminal.
  • Radio Resource Control Radio Resource Control, RRC
  • the RRC connected state refers to the establishment of an RRC connection between the terminal and the access network device, the terminal can send and receive dedicated data, and according to the activity of the terminal, the Discontinuous Reception, DRX) can save air interface resources and power consumption of terminals.
  • the non-RRC connected state refers to a state in which the RRC connection state between the terminal and the access network device is not the connected state.
  • the RRC connection state corresponding to the disconnected state may be different.
  • the connected state corresponding to the non-connected state includes the RRC idle state (RRC idle, referred to as the idle state in this embodiment of the present application); in the NR system, the connected state corresponding to the non-connected state includes the idle state and the idle state.
  • RRC inactive state RRC inactive, referred to as inactive state for short in this embodiment of the present application).
  • the idle state means that there is no RRC connection between the terminal and the access network device, and the terminal needs to periodically initiate location update, cell selection and reselection procedures, and receive paging.
  • the inactive state is a new RRC state introduced in the NR system in order to enable the terminal to quickly enter the connected state to send data, and at the same time reduce the signaling overhead brought by the moving process and state transition process.
  • the terminal does not need to notify the access network equipment when it moves within a certain Radio Access Network (RAN) notification area (RAN Notification Area, RNA), and the terminal will retain certain configurations. If the terminal has data If it needs to be sent, the terminal needs to migrate to the connected state and restore the reserved configuration for data transmission.
  • RAN Radio Access Network
  • RNA Radio Access Network Notification Area
  • Multicast service refers to the service in which the access network equipment provides wireless communication function services for multiple terminals at the same time, which can be called multicast service or broadcast service. Video on demand, online education, etc.
  • the coverage of a cell included under the access network device 111 is the location corresponding to the area D1
  • the coverage of another cell that may also be included under the access network device 111 is the coverage area corresponding to the area D2.
  • area D1 includes area D3 and area D4.
  • the location corresponding to area D3 is the coverage area of multiple cells included in the access network device 121
  • the location corresponding to area D4 is the coverage area of multiple cells included under the access network 122 .
  • the terminal 101 and the terminal 102 are located in the range of the area D3, the terminal 103 and the terminal 104 are located in the range of the area D4, and the terminal 205 is not located in the range of the area D1, the area D2, the area D3 and the area D4, then the at least one corresponding to the area D3 A cell can provide or simultaneously provide multicast service for terminal 101 and terminal 102, and at least one cell corresponding to area D4 can provide or simultaneously provide multicast service for terminal 103 and terminal 104. And terminal 101, terminal 102, terminal 103 and terminal 104 are located within the range of area D1, then at least one cell corresponding to area D1 can provide or simultaneously provide multicast services for terminal 101, terminal 102, terminal 103 and terminal 104.
  • the multicast service can establish a dedicated bearer for the terminal through the access network equipment, and use the unicast (point-to-point, PTP) transmission mode (this application may be referred to as the unicast PTP mode, may be referred to as PTP for short) by the access network.
  • the network access device sends the data to the terminal, or through the establishment of the bearer of the multicast service, in the transmission mode of multicast (point-to-multipoint, PTM) (this application may be referred to as the multicast PTM mode, may be referred to as PTM for short) by
  • the access network equipment sends it to the terminal.
  • the access network device transmits the multicast service, which means that the access network device can provide or simultaneously provide the multicast service service for at least one terminal, and the transmission mode can be the multicast PTM mode.
  • the transmission mode can be the multicast PTM mode.
  • an access network device stops transmitting multicast services it may mean that the access network device no longer transmits all multicast services, or that the access network device provides multicast services for terminals in a unicast PTP manner.
  • the access network device stops transmitting the multicast service, and it is exemplified that the access network device no longer transmits all the multicast services.
  • the names of multicast services may be different.
  • MBMS Multimedia Broadcast Multicast Service
  • MBS Multicast Broadcast Service
  • both the second device and the third device can be used to transmit multicast services.
  • the MBMS service is a service generally provided by means of broadcast transmission.
  • MBMS services can include single cell point-to-multipoint (Single Cell Point to Multi-point, SC-PTM) technology and Multimedia Broadcast Multicast Single Frequency Network (Multimedia Broadcast multicast service Single Frequency Network, MBSFN) two transmission modes.
  • SC-PTM Single Cell Point to Multi-point
  • MBSFN Multimedia Broadcast Multicast Single Frequency Network
  • SC-PTM transmission mode is a technology that uses shared data information to transmit the same service to multiple terminals at the same time.
  • a group of terminals receiving the same service use the same downlink configuration to receive the service, and it is not necessary for each terminal to establish its own communication link.
  • SC-PTM has a single cell multicast control channel (Single Cell Multicast Control Channel, SC-MCCH) and a single cell multicast transport channel (Single Cell Multicast Transport Channel, SC-MTCH), these two Each downlink logical channel (Downlink Logic channels) is mapped to the downlink shared channel (Downlink Shared Channel, DL-SCH) in the downlink transport channel (Downlink Transport channels).
  • the SC-MCCH contains a service identifier and configuration information of a multicast service logical channel (Multicast Traffic Channel, MTCH), and the SC-MTCH is used to transmit service data.
  • the multicast control information carried on the SC-MCCH is hereinafter referred to as SC-MCCH information.
  • SC-MCCH information is sent in a period, which includes a repetition period (Repetition Period, RP) and a modification period (Modification Period, MP), each repetition period sends one SC-MCCH information, and a modification period contains several repetition periods And the content of the SC-MCCH information in the modification period remains unchanged.
  • the broadcast control channel (Broadcast Control Channel, BCCH), the common control channel (Common Control Channel, CCCH), the dedicated control channel (Dedicated Control Channel, DCCH), the dedicated traffic channel ( Dedicated Traffic Channel, DTCH) is also mapped to DL-SCH.
  • BCCH is also mapped to Broadcast Channel (BCH).
  • the Paging Control Channel (PCCH) in the downlink logical channel is mapped to the Paging Channel (PCH) in the downlink transport channel.
  • the Multicast Control Channel (MCCH) and the Multicast Traffic Channel (MTCH) are mapped to the Multicast Channel (MCH).
  • the MBSFN transmission mode involves synchronous transmission of multiple cells.
  • a multi-cell/multicast coordination entity (Multi-Cell/multicast Coordination Entity, MCE) is included.
  • MCE is a logical entity, which can exist as a separate network element or a part of other network elements; the same MCE refers to the same MCE logically, which can be understood as an MCE that can be located in multiple network elements, but has the same 's identification.
  • the MCE is connected to one or more eNBs in the same MBSFN area through the M2 interface, and is mainly used to allocate, manage and control the radio resources of all eNBs in the MBSFN area.
  • the MBSFN transmission mode involves synchronous transmission among multiple cells, which can save frequency resources and improve spectrum utilization.
  • each cell may include at least one MBMS subframe for transmitting MBMS services
  • the terminal may receive MBMS data by receiving the MBMS subframe
  • the terminal may receive the MBMS subframe in an idle state or a connected state.
  • the LTE system The access network equipment (ie the eNB) in the network does not need to know which terminals are receiving the MBMS service.
  • the MBMS counting function allows the MCE to request an access network device (i.e. eNB) to count and report one or more areas served by MBSFN to determine the number of (connected) terminals receiving or interested in MBMS services.
  • eNB access network device
  • FIG. 4 is a flowchart of a complete MBMS service counting.
  • the terminals within the coverage of the eNB include terminal 1 , . . . , terminal N.
  • N is an integer greater than or equal to 0.
  • the MCE and the eNB are based on the M2 interface, and the eNB and the terminal are based on the Uu interface.
  • the process includes the following steps S401 to S405, wherein:
  • the MCE sends a multicast service count request message (MBMS SERVICE COUNTING REQUEST message) to the eNB.
  • MBMS SERVICE COUNTING REQUEST message a multicast service count request message
  • the eNB sends a multicast service count response message (MBMS SERVICE COUNTING RESPONSE message) to the MCE.
  • MBMS SERVICE COUNTING RESPONSE message a multicast service count response message
  • the MBMS SERVICE COUNTING RESPONSE is used to respond to the receipt of the MBMS SERVICE COUNTING REQUEST from the MCE, which can be understood as the eNB has received the message. It should be noted that, if the eNB cannot correctly perform the counting operation corresponding to step S401, the eNB may send an MBMS service counting failure message (MBMS SERVICE COUNTING failure message) to the MCE.
  • MBMS SERVICE COUNTING failure message MBMS SERVICE COUNTING failure message
  • the eNB sends a multicast counting request message (MBMSCountingRequest message) to the terminals within the coverage of the eNB.
  • MBMSCountingRequest message a multicast counting request message
  • the MBMSCountingRequest message is carried by the eNB in the multicast control channel MCCH corresponding to the MBSFN area, and is sent to the terminals within the coverage of the eNB.
  • the terminal within the coverage of the eNB learns that the eNB is counting (some) MBMS service users by receiving the MBMSCountingRequest message carried on the MCCH.
  • S404 The terminal interested in the MBMS service and/or receiving the MBMS service sends a multicast counting response message (MBMSCountingResponse message) to the eNB.
  • MBMSCountingResponse message a multicast counting response message
  • S405 The eNB collects the information fed back by the terminal.
  • Step S406 The eNB sends a multicast service counting result report message (MBMS Service Counting Results Report message) to the MCE.
  • MBMS Service Counting Results Report message a multicast service counting result report message
  • the terminal that is not interested in the MBMS service and/or the terminal that does not receive the MBMS service may not send the MBMSCountingResponse message.
  • the terminal that is not interested in the MBMS service and/or the terminal that does not receive the MBMS service sends an MBMSCountingResponse message, and the MBMSCountingResponse message at this time is used to indicate that the terminal is not interested in the MBMS service and/or does not receive the terminal.
  • MBMS business Considering that the number of corresponding terminals under the eNB may be large, optionally, the eNB will collect corresponding feedback information within a period of time.
  • the time may be one MCCH modification period, such as 5.12 seconds or 10.24 seconds. It can be understood that when the MCCH modification period arrives, the eNB determines that the collection of terminal feedback information has been completed.
  • the time can also be a predefined fixed value, or can be the time determined by the eNB or MCE according to auxiliary information (such as past experience, channel quality, location information, quantity of MBMS services, transmission conditions, etc.) limited.
  • SC-PTM only involves the transmission of multicast services in a single cell, does not involve the transmission of multicast services between multiple cells, and does not involve negotiation between multiple cells and/or multiple access network devices according to load conditions Application scenarios for multicast service transmission of information.
  • the second device and the third device may include multiple cells. Therefore, the SC-PTM technology is not suitable for multicast service transmission in the communication network composed of the above-mentioned third device and at least one second device.
  • MBSFN to transmit MBMS services requires multi-cell synchronization to transmit MBMS services, and there is no problem of multi-cell or multi-access network equipment co-covering. Therefore, the MBSFN technology is also not suitable for multicast service transmission in the communication network composed of the above-mentioned third device and at least one second device.
  • an embodiment of the present application proposes a method for processing multicast services, which uses multiple devices to coordinately transmit multicast services, improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, and improves multicast services at the same time. improve the communication quality and improve the user experience.
  • the method can be applied to a communication network composed of a third device and at least one second device (for example, the access network device 111, the access network device 121, the access network device 122, and the access network device 123 in FIG. 1 ), Also applicable to a third device, at least one second device, and a multicast control unit (eg, access network device 211, access network device 221, access network device 222, access network device 223, and group the communication network composed of the broadcast control unit 230).
  • a third device for example, the access network device 111, the access network device 121, the access network device 122, and the access network device 123 in FIG. 1
  • a multicast control unit eg, access network device 211, access network device 221, access network device 222, access network device 223, and group the communication network composed of the broadcast control unit 230.
  • the multicast control unit can be used to control the transmission of multicast services, optionally including whether the access network equipment in the communication network transmits multicast services, and the transmission mode of multicast services is unicast PTP mode and/or multicast It is transmitted in the PTM mode, and the service identifier of the transmitted multicast service, etc.
  • the multicast control unit may be used as a separate logical unit/entity unit, or may be used as a part of the third device.
  • the multicast control unit is connected to the second device and the third device in the communication network, and can send information to the second device and the third device respectively when the multicast control unit is used.
  • the multicast control unit controls the third device to start transmitting or stop transmitting the multicast service, and can send information to the second device.
  • the information sent by the multicast control unit to the second device or the third device for example, the indication information and request information of the multicast service, etc., is not limited here.
  • the multicast control unit is a Multicast Control Function, which may be referred to as MCF for short.
  • the second device may be an access network device, and at least one cell exists under the second device and can be used to transmit a multicast service.
  • the third device may be an access network device and may be used to transmit multicast services. It should be noted that when the second device and the third device cooperate to transmit the multicast service, it can be understood that when the third device enables the multicast service service, the second device can disable the multicast service service. When the third device disables the multicast service, the second device may enable the multicast service. It can also be understood that when the third device transmits the first multicast service, the second device may transmit multicast services other than the first multicast service and/or stop transmitting the first multicast service. When the third device stops transmitting the first multicast service, the second device can transmit the first multicast service. This application does not limit the first multicast service, which may be any multicast service.
  • FIG. 5 is a schematic flowchart of a first method for processing a multicast service provided by an embodiment of the present application. The method is applied to the communication network as shown in FIG. 2 .
  • the multicast control unit determines that the third device does not transmit the multicast service. It can be understood that the multicast service that the third device is capable of or can transmit has not yet started to transmit; and/or the multicast service that the third device is capable of or can transmit has started, but the third device does not transmit. If the multicast control unit determines that the third device transmits the multicast service, please refer to FIG. 7 . As shown in Figure 5, where:
  • S501 The multicast control unit sends a first request to the second device.
  • the first request is used to acquire information of the first terminal.
  • the first terminal is served by at least one cell existing under the second device, and the first terminal includes at least one terminal receiving the multicast service, and/or at least one terminal interested in the multicast service.
  • the terminal interested in the multicast service includes the terminal wishing to receive the multicast service that has not started transmission, or the terminal wishing to receive the multicast service being transmitted but not receiving the multicast service due to some reasons.
  • the first terminal is served by at least one cell that exists under the second device. It can be understood that the location of the first terminal is within the coverage of the cell of the second device, and it can also be understood that the first terminal is served by at least one cell included in the second device.
  • the cell of the second device may be a cell where the first terminal resides and/or a cell accessed by the first terminal and/or a cell to be accessed by the first terminal, and/or a cell where the first terminal can receive services community.
  • the coverage of the third device includes the coverage of the second device
  • the location of the first terminal may be located within the coverage of the cell of the third device.
  • the first terminal may also be served by the third device or by the cell of the third device.
  • the cell of the third device may be the cell where the first terminal resides and/or the cell accessed by the first terminal. , and/or a cell to be accessed by the first terminal, and/or a cell where the first terminal can receive services.
  • the second device is the access network device 222, and the terminal 203 and the terminal 204 receive the multicast service transmitted by the access network device 222; Either the transmission has not yet started, or the multicast service transmitted in the unicast PTP mode is interested; the terminal 207 does not currently receive the multicast service, nor is it interested in the multicast service, then the first terminal may be the terminal 203, the terminal 204 and the terminal 207. 206.
  • the information of the first terminal is used to indicate the number of at least one terminal included in the first terminal.
  • the information of the first terminal may include but is not limited to the following information: the number of terminals that are receiving multicast services and/or interested in multicast services being transmitted or to be transmitted within the coverage of the second device; the first terminal The number of included at least one terminal; the identification information of the first terminal; the service identification information of the multicast service that the first terminal is interested in and/or is receiving; the location information of the first terminal; the channel state information of the first terminal; Measurement result of a terminal; capability information of the first terminal, etc.
  • the service identification information of the multicast service that the first terminal is interested in and/or is receiving may also be information about whether the first terminal is interested in certain (some) multicast services.
  • the above-mentioned information of the first terminal may use a bitmap (bitmap) or other methods to describe whether the terminal is receiving certain multicast service(s) and/or interested in certain multicast service(s). Among them, 1 in the bitmap may indicate that the terminal is interested in certain (some) multicast services, or is receiving certain (some) multicast services, and 0 in the bitmap may indicate that the terminal is not interested in certain (some) multicast services. Interested in multicast services and/or not receiving any multicast services.
  • the service identification information of the multicast service may be used to identify the multicast service.
  • the service identification information of the above-mentioned multicast service may be the identification information of the application corresponding to the first multicast service, or may be a temporary mobile group identity (TMGI), a service identification (service ID), or the wireless network identifier corresponding to the first multicast service and used to schedule a group of terminals to receive the first multicast service (for example, the wireless network temporary identifier in the Global System for Mobile Communications (Global System for Mobile communications) -Radio Network Temporary Identity, G-RNTI)), or the identification information used to identify the PDU session in the protocol data unit (Protocol Data Unit, PDU) session for transmitting the first multicast service, or when transmitting the first multicast service
  • the identification information used to identify the multicast session (for example, when the multicast service is MBS, the identification information of the multicast session may be the identification information of the MBS session) and the like.
  • the location information may be the latitude and longitude information of the horizontal and vertical directions of the first terminal represented by satellite coordinates, the location information indicated by the 3GPP positioning technology, the location information of the cell to which the first terminal belongs, or the location information of the cell to which the first terminal belongs.
  • Tracking area (TA) information to which the first terminal belongs or device information of an access network device or a second device to which the first terminal belongs.
  • Channel state information may include signal-to-noise ratio, signal quality, signal strength, and the like.
  • the measurement result may be understood as the RRC layer result that the terminal completes the measurement and generates according to the measurement configuration, may also be the measurement result of the physical layer/layer 1, or may be the measurement result based on the beam (beam).
  • the identification information of the terminal is used to identify the terminal.
  • the identification information of the first terminal is used to identify the first terminal, and can be the identification of the first terminal, for example, a media access control address (Media Access Control Address, MAC) address, International Mobile Equipment identification code (International Mobile Equipment Identity, IMEI), International Mobile Subscriber Identity (International Mobile Subscriber Identity, IMSI), Internet Protocol (Internet Protocol) address, etc.
  • the identity information of the first terminal may also be a user identity of the multicast service corresponding to the first terminal, for example, a user terminal identity (User Equipment Identity, UE ID) and the like.
  • the capability information is used to describe whether the first terminal can support the reception of multicast services, whether it can receive multiple multicast services, and in what manner (for example, entering a connected state and/or in any RRC state) to receive multicast services,
  • the number of first terminals interested in and/or receiving multicast services can be counted; The number of first terminals for different multicast services.
  • Different multicast services may be the multicast services required to be counted in the first request, or may be reported by the terminals according to their own interests and/or the multicast services they are receiving. , or a multicast service provided by the second device or the third device.
  • the service identification information of the terminal it is also possible to count the interest in a certain (some) multicast service and the number of people who are within the coverage of the second device/served by the cell of the second device/receive multicast services from the cell service of the second device. /or the number of first terminals that are receiving multicast services.
  • the channel quality of the terminal can be obtained, and the channel quality can be used to determine whether the terminal can receive multicast service data through PTM and/or PTP, or to determine what kind of transmission the terminal can use.
  • Mode for example: PTM, PTP, PTM and PTP simultaneous transmission
  • the number of first terminals under different limited conditions can be obtained, which can facilitate the improvement of transmission efficiency and spectrum utilization rate of multicast services, save communication resources and energy, ensure the quality of multicast services, and improve users. experience.
  • the types and functions of the above terminal information are not limited here.
  • the content of the first request is not limited in this application, and the type of information of the first terminal can be specified.
  • the type of information of the first terminal is the number of terminals corresponding to the service identifiers of different multicast services, the number of The number of first terminals within the coverage area of the device, or the identification information of the first terminals, etc.
  • the request of the first terminal may also specify to obtain a statistics list of multicast services, and the statistics list may be used to obtain information of the first terminal.
  • step S501 does not limit the execution condition of step S501, which may be that the multicast control unit sends the first request to the second device at regular intervals, for example, the fifth time.
  • the fifth time can be a fixed time, which is the same for all devices and all multicast services; it can also be a different time corresponding to each multicast service; it can also be determined by the access network device or the multicast control unit
  • a dynamic time that is to say, the time is not a certain value, the time can be determined by the access network device or the multicast control unit according to past experience (for example, how many terminals generally receive/stop multicast in the past) services, etc.), channel quality, network load, etc., which are not limited here.
  • the multicast service transmitted by the third device and/or the second device is reported to the multicast control unit when the first constraint condition is satisfied, so that step S501 is executed.
  • the first constraint condition includes but is not limited to the following information: the new multicast service is about to start transmission or has already started transmission; the previously received multicast service ends or is stopped transmission; the number of multicast services transmitted by the second device exceeds a threshold Wait.
  • the threshold here may be the seventh threshold, and the seventh threshold may be the upper limit of processing the second device to transmit the multicast service at the same time, or the upper limit of the number of terminals that receive the multicast service supported by the second device; or the eighth threshold , the eighth threshold may be the eighth threshold configured by the multicast control unit or the third device, or the upper limit of the number of terminals that are receiving multicast services and/or interested in multicast services supported by the second device, or The upper limit of the number of terminals that are receiving a certain multicast service and/or interested in a certain multicast service supported by the second device.
  • the eighth threshold may also be a series of thresholds, and each sub-threshold corresponds to a multicast service existing in a network.
  • Step S501 when the number of terminals that are receiving the multicast service and/or interested in the multicast service served by the second device exceeds the sub-threshold of the multicast service, the second device reports to the multicast control unit, thereby Step S501 is executed.
  • S502 The second device sends a first response message to the multicast control unit.
  • the first response message may be used to respond to receiving the first request from the multicast control unit, or instruct the second device to perform an operation corresponding to the first request.
  • the multicast control unit may determine, according to the first response message, that the second device has received the first request. If the second device cannot correctly execute the request in step S501, the second device may send indication information to the multicast control unit for indicating that the response to the first request fails.
  • S503 The second device sends a second request to the terminals within the coverage of the second device.
  • the terminals located within the coverage of the second device include terminals p 1 , . . . , and terminals ps .
  • S is an integer greater than or equal to 0.
  • the second request may be used to obtain information about terminals within the coverage of the second device that are receiving the multicast service and/or terminals that are interested in the multicast service.
  • the second request may also be used to obtain identification information of terminals within the coverage of the second device that are receiving multicast services and/or interested in multicast services, or may be used to obtain multicast services that are receiving and/or interested
  • the service identification information, location information, channel state information, capability information, etc. are not limited here. It can be understood that the second request is used to obtain the information of the first terminal.
  • the second request may be sent by the second device to the terminals covered by the second device at regular intervals, or the multicast service transmitted by the second device may satisfy a constraint condition, sent to the terminal within the coverage of the second device, or after the multicast service transmitted by the third device satisfies a constraint condition, requesting the second device to send to the terminal within the coverage of the second device, etc., the above time and For the constraint condition, reference may be made to the description of the execution condition of step S501, which will not be repeated here.
  • S504 The terminal within the coverage of the second device sends the first information of the terminal to the second device.
  • the terminals that send the first information to the second device may include terminals within the coverage of the second device, or include terminals within the coverage of the second device that receive multicast services, and/or terminals that are interested in multicast services , which can also be understood as the first terminal. It should be noted that a terminal that is not interested in a multicast service and/or a terminal that does not receive a multicast service may not send the information of the terminal. In another possible implementation manner, the information sent by the terminal that is not interested in the multicast service and/or the terminal that does not receive the multicast service may be sent to the second device to indicate that the terminal is not interested in the multicast service and/or No information about receiving multicast services.
  • the first information may include but is not limited to: identification information of the terminal, service identification information of the multicast service that the terminal is receiving, service identification information of the multicast service that the terminal is interested in, service identification information of the multicast service that the terminal is not interested in, For the location information of the terminal, the channel state information of the terminal, the measurement result of the terminal, the capability information of the terminal, etc., reference may be made to the foregoing description of the information of the first terminal, and details are not repeated here.
  • the first information may be based on the information required to be reported in the second request in step S503, or may be information reported by the terminal to the second device according to its own interest and/or the multicast service it is receiving, etc. limited. If the first information is reported spontaneously by the terminal, it may be reported to the second device according to the time, or may be reported to the second device when the multicast service of the terminal meets the second constraint condition.
  • the second constraint condition includes but is not limited to the following information: the terminal is interested in a new or about to start multicast service; the multicast service being received by the terminal ends or the reception is interrupted; the number of multicast services received by the terminal exceeds a threshold Wait.
  • the first information may also be reported to the second device when the signal state parameter between the terminal and the second device satisfies the second constraint condition.
  • the second preset condition may be that the signal quality, signal strength or network load in the signal state parameter is less than a threshold, and the threshold may be a ninth threshold.
  • the ninth threshold may be based on past experience. For example, in the past, it was generally lower than There are no limitations on how often data cannot be received, etc.
  • S505 the second device acquires the information of the first terminal.
  • the second device may use the first information as the information of the first terminal, and the second device may also use the first information of each terminal obtained in step S504, Count the number and/or other information of terminals that are receiving and/or interested in multicast services in each cell that exists under the second device, or count the second device based on the first information of each terminal obtained in step S504 The number and other information about the number of terminals that are receiving and/or interested in multicast services in all cells that exist under it.
  • Other information may include the identification information of the terminal, the service identification information of the multicast service the terminal is receiving, the service identification information of the multicast service that the terminal is interested in, the service identification information of the multicast service that the terminal is not interested in, the location information of the terminal, For the channel state information of the terminal, the measurement result of the terminal, the capability information of the terminal, etc., reference may be made to the description of the information of the first terminal, and details are not repeated here.
  • the second device may perform statistics according to the foregoing service identification information, or may perform statistics according to the foregoing service identification information in the bitmap. It can be understood that the second device performs statistics based on different multicast services. Taking the first multicast service in the multicast service as an example, the second device can count the first information of the terminals that receive and/or are interested in the first multicast service in each cell existing under the second device, and also The first information of terminals that receive and/or are interested in the first multicast service in all cells existing under the second device may be counted.
  • the first multicast service may be a service that the second device can transmit/is about to start/transmit, or may be a multicast service required to be counted in the first request sent by the multicast control unit, etc. limit.
  • the second device may perform statistics based on the first request in step S501, or based on other requests sent by the multicast control unit, or the second device may perform statistics based on the second request, or based on the first request.
  • the statistics on the service identification information of the multicast service provided by the second device, or the statistics on the requests for the multicast service received by the second device, etc., are not limited here.
  • the second device will count the first information within a period of time.
  • the time may be an MCCH modification period, a predefined fixed value, or may be an access network device or a multicast control unit based on auxiliary information (for example, past experience, channel quality, location information, number of multicast services, transmission conditions) etc.) the time determined, etc., are not limited here.
  • S506 The second device sends the information of the first terminal to the multicast control unit.
  • the information of the first terminal may include service identification information, location information, channel state information, measurement results of the multicast service of the terminal that receives the multicast service within the coverage of the second device, and/or the terminal interested in the multicast service. , identification information, capability information, etc., reference may be made to the description of the information of the first terminal in step S501, which is not repeated here.
  • the multicast control unit may, by sending a request to the second device, obtain the information of the terminal that is receiving the multicast service and/or the terminal interested in the multicast service within the coverage of the second device. Statistical information, so as to determine that the second device is receiving multicast services and/or is interested in multicast services within the coverage area of the second device.
  • the third device may transmit the multicast service in a unicast PTP manner. That is, the third device may transmit the multicast service to terminals within the coverage of the third device that are receiving the multicast service and/or interested in transmitting or about to start transmitting the multicast service.
  • the multicast control unit may also count the information of the terminals under the third device.
  • FIG. 6 is a schematic flowchart of the second method for processing multicast services provided by this application, including The following steps S611-S616, wherein:
  • S611 The multicast control unit sends a third request to the third device.
  • the third request can be used to obtain the coverage of the third device, which is receiving multicast services through unicast PTP, and/or for the group that is transmitting and/or is about to start transmitting and/or the third device can transmit.
  • information about terminals interested in broadcasting services As shown in FIG. 6 , the terminals located within the coverage of the third device include terminals k 1 , . . . , and terminals k M .
  • M is an integer greater than or equal to 0.
  • a terminal that is receiving a multicast service and/or interested in a multicast service that is about to start transmission within the coverage of the third device is referred to as a seventh terminal.
  • the third request is used to obtain information of the seventh terminal.
  • the seventh terminal may reside in or access a cell existing under the third device, is receiving multicast services in a unicast PTP manner, and/or is about to start transmitting multicast services to the third device terminal of interest.
  • the information of the seventh terminal reference may be made to the description of the information of the first terminal, which is not repeated here.
  • the execution conditions of step S611 can refer to the execution conditions of step S501, which can be that the multicast control unit sends the third request to the third device at regular intervals, or the multicast service transmitted by the third device and/or the second device is When the first constraint condition is satisfied, it is reported to the multicast control unit, so as to execute step S611 and the like, which will not be repeated here.
  • S612 The third device sends a second response message to the multicast control unit.
  • the second response message may be used to respond to receiving the third request from the multicast control unit, or instruct the third device to perform an operation corresponding to the third request.
  • the multicast control unit may determine, according to the second response message, that the third device has received the third request. If the third device cannot correctly execute the request in step S611, the third device may send indication information to the multicast control unit for indicating that the response to the third request fails.
  • S613 The third device sends a fourth request to the terminals within the coverage of the third device.
  • the fourth request may be used to obtain information about terminals within the coverage of the third device that are receiving the multicast service and/or interested in the multicast service that is currently transmitting or about to start transmitting.
  • the fourth request can also be used to obtain the identification information of the terminal within the coverage of the third device that is receiving the multicast service and/or interested in the multicast service that is about to start transmission, or can be used to obtain
  • the service identification information, location information, channel state information, capability information, etc. of the multicast service of interest to the multicast service being transmitted or about to start transmission is not limited herein. It can be understood that the fourth request is used to obtain information of the seventh terminal.
  • step S613 This application does not limit the execution conditions of step S613, which may be sent by the third device to the terminals covered by the third device at regular intervals, or may be when the multicast service transmitted by the second device satisfies a constraint condition, Sent to a terminal within the coverage of the second device, or after the multicast service transmitted by the third device satisfies a constraint, requesting the second device to send to a terminal within the coverage of the second device, etc.
  • the above time and constraints can be Referring to the description of the execution conditions of step S501, details are not repeated here.
  • S614 The terminal within the coverage of the third device sends the second information of the terminal to the third device.
  • the terminals that send the second information to the third device may include terminals within the coverage of the third device, or include the terminals within the coverage of the third device that receive multicast services, and/or are transmitting or are about to start transmitting.
  • the terminal interested in the multicast service can also be understood as the above-mentioned seventh terminal. It should be noted that a terminal that is not interested in a multicast service and/or a terminal that does not receive a multicast service may not send the information of the terminal.
  • the information sent by the terminal that is not interested in the multicast service and/or the terminal that does not receive the multicast service may be sent to the second device to indicate that the terminal is not interested in the multicast service and/or No information about receiving multicast services.
  • the second information may include, but is not limited to: identification information of the terminal, service identification information of the multicast service being received by the terminal, service identification information of the multicast service that the terminal is interested in, service identification information of the multicast service that the terminal is not interested in, For the location information of the terminal, the channel state information of the terminal, the measurement result of the terminal, the capability information of the terminal, etc., reference may be made to the description of the first information, and details are not repeated here.
  • the second information may be based on the information required to be reported in the fourth request in step S613, or may be information reported by the terminal to the third device according to its own interest and/or the multicast service it is receiving, etc. limited. If the second information is reported spontaneously by the terminal, it can be reported to the third device according to the time, or it can be reported to the third device when the multicast service of the terminal meets the second constraint.
  • the above time and the second constraint can be Referring to the description of step S504, details are not repeated here.
  • S615 The third device acquires information of the seventh terminal.
  • the third device may use the second information as the information of the seventh terminal, and the third device may also be based on the second information of each terminal obtained in step S614, Count the number and/or other information of terminals that are receiving and/or interested in multicast services in each cell that exists under the third device, or count the third device based on the second information of each terminal obtained in step S614 The number and other information about the number of terminals that are receiving and/or interested in multicast services in all cells that exist under it.
  • the third device may perform statistics according to the foregoing service identification information, or may perform statistics according to the foregoing service identification information in the bitmap. It can be understood that the third device performs statistics based on different multicast services. For an example, reference may be made to the description of step S505, which will not be repeated here.
  • the third device may perform statistics based on the third request in step S611, or based on other requests sent by the multicast control unit, or the third device may perform statistics based on the fourth request, or based on the third request.
  • the statistics on the service identification information of the multicast service provided by the third device, or the statistics on the request of the multicast service received by the third device, etc., are not limited here.
  • the third device will count the first information within a period of time, and the period may be an MCCH modification period or a predefined fixed value, Or it may be the time determined by the access network device or the multicast control unit according to auxiliary information (eg, past experience, channel quality, location information, multicast service quantity, transmission situation, etc.), which is not limited here.
  • auxiliary information eg, past experience, channel quality, location information, multicast service quantity, transmission situation, etc.
  • S616 The third device sends the information of the seventh terminal to the multicast control unit.
  • the information of the seventh terminal may include the service identification information, location information, channel state information, measurement results of the multicast service of the terminal receiving the multicast service within the coverage of the third device, and/or the terminal interested in the multicast service. , identification information, capability information, etc., reference may be made to the description of the information of the first terminal in step S501, which is not repeated here.
  • the multicast control unit may, by sending a request to the third device, obtain the multicast service that is being received within the coverage of the third device, and/or the group that is transmitting or is about to start transmitting.
  • the statistical information of the terminal interested in the broadcast service is determined, so as to determine the situation that the third device is receiving the multicast service and/or is interested in the multicast service that is about to start transmission.
  • the time between the multicast control unit executing step S501 and step S611 is not limited, and may be sent at the same time or not at the same time.
  • S507 The multicast control unit determines that the first condition is satisfied.
  • step S508 and step S509 are executed. If it is determined that the first condition is not met, the second device can continue to provide the first terminal with the multicast service, or a time can be set, for example, a sixth time, which can refer to the fifth time described in step S501, here No longer.
  • the time can be set according to the number of the first terminals and the tenth, etc., which is not limited here. For the tenth threshold, reference may be made to the description of the seventh threshold or the eighth threshold, which will not be repeated here.
  • the multicast control unit executes step S501.
  • the first condition may also be when the multicast service of the second device and/or the third device in the communication network changes, for example, the new multicast service is about to start transmission or has already started transmission; the previously received multicast service ends or is Stop transmission; the number of multicast services transmitted by the second device exceeds a threshold, etc., execute step S502, or report to the multicast service unit, thereby executing step S501.
  • this embodiment of the present application does not limit the execution time of step S508 and step S509, and the sequence in FIG. 5 is a possible embodiment in which step S508 and step S509 are executed simultaneously.
  • the first condition may include that the number of at least one terminal included in the first terminal is greater than or equal to the first threshold.
  • the number of at least one terminal included in the first terminal may be the number of first terminals that are receiving a certain multicast service (for example, the first multicast service) or the first terminal interested in the multicast service, or may be receiving any The number of multicast services or all first terminals interested in any multicast service.
  • This application does not limit the first threshold.
  • the first threshold is 5. If the number of at least one terminal included in the first terminal is 7, the first condition is satisfied.
  • the number of first terminals receiving and/or interested in the multicast service that is being transmitted and/or about to start transmission is within the coverage of the cell included by the second device is less than the first threshold, it indicates that the area is There are fewer first terminals in the network, and the multicast service can be transmitted through the second device with lower transmission power.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption;
  • the use of air interface resources is optimized, potential communication interference between the second device and the third device is avoided, deployment difficulty is reduced, and air interface resource waste is avoided.
  • the third device centrally transmits the multicast service, which can improve the transmission efficiency and spectrum utilization rate of the multicast service, save communication resources and energy, improve the communication quality of the multicast service, and improve the user experience.
  • the multicast service transmitted by the third device may be understood as that at least one cell of the third device transmits all multicast services. All the multicast services here may be multicast services that the third device is capable of transmitting. At this time, if the third device enables the transmission of the multicast service, the second device that performs the transmission of the multicast service before the third device is enabled may not need to perform the transmission of the multicast service.
  • the multicast service transmitted by the third device may also be understood as that at least one cell of the third device transmits some multicast services. That is to say, the third device and the second device can transmit different multicast services at the same time. Among them, some multicast services may be divided according to the aforementioned first threshold.
  • the above-mentioned multicast services can be all multicast services. For example, assuming that the number of different multicast services being transmitted and/or about to start in the communication network at this time is 10, and the first threshold is 7, then the third device transmits the number of different multicast services. The number of multicast services is 3, and the number of multicast services transmitted by the second device is 7.
  • the above-mentioned multicast service may also be for different multicast services.
  • the first threshold is 7, for the first multicast service, the first terminal that is receiving and/or interested in the first multicast service The number is 10.
  • the second multicast service the number of first terminals that are receiving and/or interested in the first multicast service is 5.
  • the third device transmits the first multicast service, and the third device transmits the first multicast service.
  • the second device no longer transmits the first multicast service, and the second device can transmit the second multicast service.
  • the multicast service exceeding the first threshold can be transmitted by the third device, and the multicast service not exceeding the first threshold can be transmitted by the second device.
  • the third device and the second device cooperate to transmit the multicast service, which improves the transmission efficiency and spectrum utilization of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • the first condition may include that the number of terminals in the first terminal served by each cell included by the second device is less than or equal to the second threshold.
  • This application does not limit the second threshold, for example, the second threshold is 2.
  • the location corresponding to area D1 is the coverage area of a cell existing under the access network device 211
  • the location corresponding to area D3 is the coverage area corresponding to all cells existing under the access network device 221
  • the location corresponding to the area D4 is the coverage area corresponding to all cells existing under the access network device 222 .
  • Terminal 201 and terminal 202 are not located in the same cell corresponding to area D3, terminal 206 and terminal 207 are located in the same cell corresponding to area D4, terminal 203 and terminal 204 are not located in the same cell corresponding to area D4, and are not located in the same cell corresponding to area D4. In the cell where the terminal 206 and the terminal 207 are located. Assuming that the above terminals are all first terminals and are served by cells corresponding to their areas, and the second threshold is 2, the number of terminals in the cells to which the above first terminals belong are all less than or equal to the second threshold.
  • the second device when the number of at least one terminal served by the second device in the first terminal exceeds the second threshold, it means that there are more terminals within the coverage of the second device, and the second device can transmit the multicast service centrally.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption; at the same time, optimizing the use of air interface resources to avoid potential communication interference between the second device and the third device, Reduce deployment difficulty and avoid wasting air interface resources.
  • the third device with large coverage and high transmit power transmits multicast services, which improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, and at the same time improves the communication quality of multicast services and improves user experience.
  • the first condition may include that the number of at least one access network device included in the second device is greater than or equal to a third threshold.
  • This application does not limit the third threshold.
  • the third threshold is 1. If the second device includes two access network devices at this time, the first condition is satisfied. It can be understood that when the number of access network devices included in the second device of the cell serving the first terminal is less than the third threshold, it means that there are fewer access network devices in the area, and each access network device can pass through each access network. The device transmits multicast services alone.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption; at the same time, optimizing the use of air interface resources and avoiding the communication between the second device and the third device.
  • the existing potential communication interference reduces the difficulty of deployment and avoids wasting air interface resources.
  • the number of access network devices is greater than or equal to the third threshold, it indicates that the terminals that are receiving and/or interested in multicast services may be distributed under multiple access network devices. Terminals interested in multicast services have a wide distribution range, and can transmit multicast services through third devices with larger coverage and higher transmit power, which improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, while improving the communication quality of multicast services and improving user experience.
  • the first condition may also include that the number of terminals (or first terminals) served by each of the at least one access network device included in the second device is less than or equal to the eleventh threshold.
  • the present application does not limit the eleventh threshold, for example, the eleventh threshold is 3.
  • the eleventh threshold is 3.
  • the location corresponding to area D1 is the coverage area of a cell existing under the access network device 211
  • the location corresponding to area D3 is the coverage area corresponding to all cells existing under the access network device 221
  • the location corresponding to the area D4 is the coverage area corresponding to all cells existing under the access network device 222 .
  • the terminal 201 and the terminal 202 are located within the range of the area D3, and the terminal 203, the terminal 204, the terminal 206 and the terminal 207 are located within the range of the area D4.
  • the access network device 221 and the access network device 222 are both second devices, and the access network device 211 is the third device,
  • the eleventh threshold is 3, then the number (2) of the first terminals in the access network device 221 is less than or equal to the eleventh threshold, and the number (4) of the first terminals in the access network device 222 is greater than the eleventh threshold threshold, so that the first condition is not met.
  • the multicast service can be transmitted through each access network device included in the second device, and the transmission quality of the multicast service can be improved.
  • the third device can transmit multicast It improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, improves the communication quality of multicast services, and improves user experience.
  • the range of the area D1 is the coverage of a cell existing under the access network device 111
  • the range of the area D3 is the coverage corresponding to all cells existing under the access network device 121
  • the range of the area D4 is the coverage range corresponding to all cells existing under the access network device 122 .
  • the terminal 101 and the terminal 102 are located within the range of the area D3, and the terminal 103 and the terminal 104 are located within the range of the area D4.
  • the above terminals are all first terminals, and are all served by access network devices corresponding to their regions, the access network device 121 and the access network device 122 are both second devices, and the access network device 111 is the third device,
  • the eleventh threshold is 3, then the number (2) of the first terminals in the access network device 121 is less than or equal to the eleventh threshold, and the number (2) of the first terminals in the access network device 122 is less than or equal to the number (2) of the first terminals in the access network device 122 Eleven thresholds are met, so that the first condition is satisfied, and the multicast service can be transmitted through the access network device 111.
  • the third device with higher power is not used for multicast service transmission, so as to optimize the energy consumption of the network and reduce the power consumption; Optimize the use of air interface resources, avoid potential communication interference between the second device and the third device, reduce deployment difficulty, and avoid wasting air interface resources.
  • the first condition does not constitute a limitation on the embodiments of the present application.
  • the first condition includes that the number of at least one terminal included in the above-mentioned first terminal is greater than or equal to the first threshold, and the first The number of terminals served by each cell included in the second device is less than or equal to the second threshold; or, the number of at least one terminal included in the first terminal is greater than or equal to the first threshold, and the number of at least one terminal included in the second device is equal to or greater than the first threshold.
  • the network access device is greater than or equal to the third threshold; or, the number of at least one terminal included in the first terminal is greater than or equal to the first threshold, and the terminals (or first terminals) served by each access network device included in the second device
  • the number of is less than or equal to the eleventh threshold, and other embodiments may also be used to define the first condition.
  • the channel state information of the first terminal is greater than or equal to a threshold, and the signal quality/channel condition/channel quality in the channel state information is used as an example. It can be understood that when the signal quality/channel condition/channel quality of the terminal exceeds a threshold, it indicates that the signal of the terminal is better, and the multicast service can be transmitted through the third device with higher transmission power.
  • the threshold can be obtained by evaluating the channel state according to past experience, which is not limited here. At this time, the terminal whose signal quality/channel condition/channel quality meets the threshold and is receiving and/or interested in the multicast service belongs to the first terminal.
  • the first condition may include one or more of the above thresholds, and when the conditions corresponding to the included thresholds are all satisfied, the first condition is considered to be satisfied.
  • steps S611 to S616 are executed, it is also necessary to judge whether the information of the first terminal and the information of the seventh terminal satisfy the first condition.
  • the multicast control unit sends the first indication information to the second device.
  • the multicast control unit sends the second indication information to the third device.
  • the first indication information may be used to instruct the third device to transmit the multicast service.
  • the multicast service transmitted by the third device reference may be made to the description in step S507, and details are not repeated here.
  • the first indication information includes first time information, where the first time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the second device stops transmitting The time of the multicast service.
  • the first time information may include the time of the timer, for example, 5 seconds. Taking the time of the timer in the first time information as 5 seconds as an example, the third device starts timing after step S505, starts to transmit the multicast service when 5 seconds is reached, and the second device starts timing after step S504, or receives Start timing after the first indication message, and stop transmitting the multicast service when it reaches 5 seconds.
  • the first time information may also include a frame number or a subframe number, etc. It can be understood that the operation corresponding to the first indication information is performed when data corresponding to the frame number or subframe number is received.
  • the first time information may further include the first time, where the first time is the time when the third device starts to transmit the multicast service.
  • the second indication information may be used to instruct the third device to transmit the multicast service, and/or, the second device to stop transmitting the multicast service.
  • the multicast service that the second device stops transmitting may be the multicast service that the third device starts to transmit, the multicast service that the third device does not transmit, or the group that the third device does not transmit in the PTM mode. broadcast business, etc.
  • the third device transmits the multicast service and the second device (stops) transmits the multicast service, reference may be made to the description of the first indication information, which will not be repeated here.
  • the second device stops enabling the transmission of the multicast service the second device that transmits the multicast service before the third device starts does not need to transmit the multicast service.
  • the second indication information includes third time information, where the third time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the second device stops transmitting The time of the multicast service.
  • the third time information may include the time of the timer, frame number or subframe number, etc., and may also include the second time, which is when the second device stops transmitting The time of the multicast service.
  • the second indication information reference may be made to the description of the first indication information, which will not be repeated here. It should be noted that the second time may be earlier than or equal to the first time, so as to avoid interruption of the multicast service and facilitate the improvement of service quality.
  • the second indication information may be sent by the multicast control unit to the third device when the first condition is satisfied.
  • This application does not limit the first time and the second time, which can be determined based on past experience (for example, the time required for the second device to receive multicast services from the currently connected terminal, etc.), channel quality, and network load. It can be understood that when or before the first device or the third device starts to transmit the multicast service, the terminal of the second device completes the configuration of the multicast service, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • first indication information may also include second time information
  • second indication information may also include first time information
  • the first indication information and the second indication information may be the same indication information, and the first time information and the second time information may be the same time information.
  • the second device sends fifth indication information.
  • the fifth indication information may be used to instruct the fifth terminal to reselect to the third device.
  • the fifth indication information can be broadcast by the second device within the coverage of the second device, which can be understood as broadcasting in a cell under the second device, or broadcasting in a cell where the fifth terminal exists under the second device, etc.
  • the fifth terminal may belong to the first terminal.
  • the fifth terminal may be located within the coverage of the second device and the third device, and receive and/or be interested in the multicast service.
  • the above-mentioned fifth terminal includes a terminal that resides in the cell of the second device; for the terminal that accesses the cell of the second device, a secondary carrier can be added based on the carrier aggregation technology, or switched to the third device, so that the Avoid interruption of multicast services and improve service quality.
  • the fifth indication information includes identification information of the third device, where the identification information can be used to identify the third device.
  • the terminal may reselect to the third device corresponding to the identification information based on the identification information in the fifth indication information.
  • the fifth indication information may indicate that the frequency priority of the third device is the highest priority, and the terminal may reselect to the third device based on the frequency of the highest priority.
  • the fifth indication information may indicate the frequency priority information of the third device.
  • the fifth indication information may include the first configuration information of the frequency priority of the third device and the second device, and the configuration information may be Include configuration parameters, such as offset parameters (offset), etc.
  • the fifth indication information indicates to increase the priority of the frequency point of the third device when performing cell reselection.
  • the fifth indication information may include the configuration information of the multicast service or some multicast services, the configuration information may be used to indicate how the multicast service is transmitted, and/or all the multicast services or some of the multicast services are about to stop for the second device Transported multicast services.
  • the configuration information can be specifically used to obtain the transmission priority of the multicast service, the frequency priority of the third device and the second device, the frequency priority of the third device is the highest priority, the control scheduling information of the multicast service, etc. .
  • the terminal may determine, based on the configuration information of the multicast service in the fifth indication information, that the second device will stop the transmission of the multicast service, and the terminal reselects to the third device. Through the configuration information, it can be determined that the access network device to be connected is the third device, so that the terminal can reselect to the third device corresponding to the identification information.
  • the fifth instruction information may also be instruction information for the second device to stop transmitting the multicast service, etc. It can be understood that the fifth instruction information instructs the second device to stop transmitting the multicast service, and the terminals within the coverage of the second device perform the network search step. , to determine the device that transmits the multicast service, so as to reside in the third device.
  • the third device can transmit the multicast service to the fifth terminal, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • the fifth indication information may be one or more of the above possibilities, which is not limited here.
  • S511 The second device sends the first confirmation information to the third device.
  • the first confirmation information may be used to indicate that the terminal corresponding to the second device has been reselected to the third device.
  • the first confirmation information may be after the second device determines that it is located within the coverage of the second device and the third device, and the terminal receiving the multicast service and/or interested in the multicast service has been reselected to the third device, or it may be It is sent to the third device after the second device determines to stop transmitting the multicast service.
  • the above-mentioned first confirmation information may be sent by the second device to the third device before the time corresponding to the first time information arrives.
  • the third device receives the first confirmation information, it means that it is within the coverage of the second device and the third device, and the terminal that receives the multicast service and/or is interested in the multicast service has been reselected to the third device. Therefore, the terminal can receive the multicast service through the third device, which can avoid service interruption and facilitate the improvement of service quality.
  • the indication information, the second indication information, etc. can be sent through a multicast service control channel, for example, MCCH, or including system information, or RRC information, etc., which are not limited herein.
  • the multicast control unit receives from the second device the coverage of the second device, receives the multicast service or is interested in the multicast service After the information of the terminal has been obtained, the indication information of the multicast service is respectively sent to the second device and the third device. Furthermore, the second device can cooperate with the third device to transmit the multicast service, which improves the transmission efficiency and spectrum utilization of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • FIG. 7 provides a third multicast service processing method for the present application, and the method is applied to FIG. 2 shows the communication network.
  • the multicast control unit transmits the multicast service, wherein:
  • S701 The multicast control unit sends a fifth request to a third device.
  • the fifth request may be used to acquire information of the second terminal.
  • the second terminal is served by the third device, and the second terminal may include at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service.
  • the second terminal may be all terminals that are receiving the multicast service transmitted by the third device, and/or all terminals that are interested in the third device that is transmitting and/or is about to start transmitting and/or is capable of transmitting, and It may be a terminal corresponding to some/part of the multicast service, for example, the third device can transmit, but does not meet the first condition in step S507, and the terminal of the multicast service that does not transmit, or the designated first group broadcast business, etc.
  • the terminals within the coverage of the third device include terminals W 1 , . . . , terminals W J , where J is an integer greater than or equal to 0.
  • the second terminal when the second terminal is served by the third device, it can be understood that the location of the second terminal is within the coverage of the cell of the third device, and it can also be understood that the second terminal is served by at least one cell included by the third device, or It can be said that the cell of the third device may be a cell where the second terminal resides, and/or a cell accessed by the second terminal, and/or a cell to be accessed by the second terminal.
  • the coverage of the third device includes the coverage of the second device, the location of the second terminal may be located within the coverage of the cell of the third device.
  • the second terminal may also be served by the cell of the second device. It can be said that the cell of the second device may be a cell where the second terminal resides and/or a cell accessed by the second terminal, and/or a cell to be accessed by the second terminal.
  • the third device is the access network device 211
  • the second device is the access network device 221
  • the terminal 201 receives the multicast service transmitted by the access network device 211
  • the terminal 202 connects If the network access device 211 is interested in the multicast service transmitted, the second terminals may be the terminal 201 and the terminal 202 .
  • the information of the second terminal may be used to indicate the number of at least one terminal included in the second terminal.
  • the information of the second terminal includes but is not limited to the following information: within the coverage of the second device, the number of terminals receiving multicast services and/or interested in multicast services; the number of at least one terminal included in the second terminal; identification information of the second terminal; service identification information of the multicast service that the second terminal is interested in and/or is receiving; location information of the second terminal; channel state information of the second terminal; measurement results of the second terminal; Terminal capability information, etc.
  • the description of the information of the first terminal which will not be repeated here.
  • the content of the second request is not limited in this application, and the type of information of the second terminal to be acquired may be specified, and the statistics list of the multicast service may also be specified to be acquired.
  • the present application does not limit the execution condition of step S701, which may be that the multicast control unit reports to the third device at regular intervals or when the third device and/or the second device satisfies the first constraint condition. For details, reference may be made to the description of step S501, which is not repeated here.
  • S702 The third device sends a third response message to the multicast control unit.
  • the third response message may be used to respond to receiving the fifth request from the multicast control unit, or instruct the third device to perform an operation corresponding to the fifth request.
  • the multicast control unit may determine, according to the third response message, that the third device has received the third request. If the third device cannot correctly execute the request in step S701, the third device may send indication information to the multicast control unit for indicating that the fifth request response fails.
  • S703 The third device sends a sixth request to the terminals covered by the third device.
  • the sixth request may be used to obtain information about terminals within the coverage of the third device that are receiving the multicast service and/or interested in the multicast service that is currently transmitting or about to start transmitting.
  • the sixth request can also be used to obtain the identification information of the terminal within the coverage of the third device that is receiving the multicast service and/or is interested in the multicast service that is being transmitted or is about to start to be transmitted, or can be used to obtain the receiving and/or Or the service identification information, location information, channel state information, capability information, etc. of the interested multicast service, which are not limited here. It can be understood that the sixth request is used to obtain the information of the second terminal.
  • the sixth request may also include information used to request the second terminal to camp on or access the second device before camping on and/or accessing the third device, or information about the current location of the second terminal to which the second terminal belongs.
  • Information of the second device, or the second device to which one or more cells that can be camped on by the current second terminal are determined through measurement.
  • the information of the second device here may include identification information of the second device, receiving any multicast service within the coverage of the second device and/or interested in any multicast service being transmitted or about to start transmission.
  • the identification information of the second device may include the identification of the second device, for example, device ID, IP identification, port number, geographic identification or cell identification corresponding to the location of the second device, etc., which are not limited here.
  • step S703 may be sent by the third device to the terminals covered by the third device at regular intervals, or may be when the multicast service transmitted by the third device satisfies a constraint condition, It is sent to a terminal within the coverage of the second device, or after the multicast service transmitted by the second device satisfies a constraint condition, and requests the third device to send to a terminal within the coverage of the third device, etc.
  • the above time and constraints can be Referring to the description of the execution conditions of step S501, details are not repeated here.
  • S704 The terminal within the coverage of the third device sends the third information of the terminal to the third device.
  • the terminals that send the third information to the third device may include terminals within the coverage of the third device, or include the terminals within the coverage of the third device that receive multicast services, and/or the terminals that are transmitting or are about to start transmitting.
  • the terminal interested in the multicast service can also be understood as the above-mentioned second terminal. It should be noted that a terminal that is not interested in a multicast service and/or a terminal that does not receive a multicast service may not send the information of the terminal.
  • the information sent by the terminal that is not interested in the multicast service and/or the terminal that does not receive the multicast service may be sent to the third device to indicate that the terminal is not interested in the multicast service and/or No information about receiving multicast services.
  • the third information may include information of the terminal sending the third information, for example, identification information, service identification information of the multicast service being received, service identification information of interested in the multicast service, service of the multicast service not interested in For identification information, location information, channel state information, measurement results, capability information, etc., reference may be made to the description of the first information, and details are not repeated here.
  • the third information may also include the identification information of the second device and the information of the second device where the second terminal resides or accesses the third device before the second terminal resides on and/or accesses the third device, or includes the second device
  • the identification information of the second device corresponding to the currently campable cell and the information of the second device.
  • the information of the second device can be acquired through the identification information of the second device.
  • the cell that the second device can currently camp on may be a terminal covered by the third device, and after receiving the sixth request, the cell that meets the camping condition is obtained by performing measurement.
  • the third information may be based on the information required to be reported in the sixth request in step S703, or may be information reported by the terminal to the third device according to its own interest and/or the multicast service it is receiving, etc. limited. If the third information is reported spontaneously by the terminal, it can be reported to the third device according to the time, or it can be reported to the third device when the multicast service of the terminal meets the second constraint.
  • the above time and the second constraint can be Referring to the description of step S504, details are not repeated here.
  • S705 the third device acquires the information of the second terminal.
  • the third device may use the third information as the information of the second terminal, and the third device may also be based on the third information of each terminal obtained in step S704, Count the number and/or other information of terminals that are receiving and/or interested in multicast services in each cell or all cells within the coverage of the third device, and also count the camping and /or before accessing the third device, the number and other information of terminals that are receiving and/or interested in multicast services in each cell or all cells that reside or access the second device, or Count the number and other information of the terminals that are receiving and/or interested in the multicast service in each cell or all cells existing under the second device that each terminal can currently camp on or access.
  • Other information may include the identification information of the second terminal, the service identification information of the multicast service being received by the second terminal, the service identification information of the multicast service that the second terminal is interested in, and the service of the multicast service that the second terminal is not interested in.
  • identification information location information of the second terminal, channel state information of the second terminal, measurement results of the second terminal, capability information of the second terminal, etc.
  • Other information may also include the second device that the terminal resides on or accesses before the terminal resides on and/or accesses the third device, or the device identifier of the second device that the terminal can reside on or access currently, and the third device.
  • the information of the second terminal may include one or more pieces of the above-mentioned information, which is not limited here. In this way, through the information of the second terminal, the multicast control unit or the third device, it can be determined whether the third device continues the transmission of all multicast services, or continues the transmission of some multicast services.
  • the third device may perform statistics according to the foregoing service identification information, or may perform statistics according to the foregoing service identification information in the bitmap. It can be understood that the third device performs statistics based on different multicast services. For an example, reference may be made to the description of step S505, which will not be repeated here.
  • the third device may perform statistics based on the fifth request in step S701, or based on other requests sent by the multicast control unit, or the third device may perform statistics based on the sixth request, or based on the sixth request.
  • the statistics on the service identification information of the multicast service provided by the third device, or the statistics on the request of the multicast service received by the third device, etc., are not limited here.
  • the third device will count the first information within a period of time, and the period may be an MCCH modification period or a predefined fixed value, Or it may be the time determined by the access network device or the multicast control unit according to auxiliary information (eg, past experience, channel quality, location information, multicast service quantity, transmission situation, etc.), which is not limited here.
  • auxiliary information eg, past experience, channel quality, location information, multicast service quantity, transmission situation, etc.
  • the multicast control unit may, by sending a request to the third device, obtain the coverage of the third device that is receiving the multicast service, and/or the information of the terminal interested in the multicast service. Statistical information, so as to determine that the third device is receiving multicast services and/or is interested in multicast services within the coverage area of the third device.
  • S706 The third device sends the information of the second terminal to the multicast control unit.
  • step S706 may refer to the following two ways, wherein:
  • the third device receives information of the third terminal from the second terminal, where the third terminal is at least one terminal included in the second terminal.
  • the third device receives information of the fourth terminal from the second device, where the fourth terminal is a terminal other than the third terminal among at least one terminal included in the second terminal.
  • the terminal in the second terminal can directly send uplink data to the third device
  • the terminal can be used as the third terminal to send the information of the third terminal to the third device in the first way, and can also be used as the fourth terminal to send the information of the third terminal to the third device.
  • the terminal sends the information of the fourth terminal to the third device in the second manner.
  • the third terminal cannot send the uplink data to the multicast control unit, it can be used as the fourth terminal to send the information of the fourth terminal to the third device through the second method, so as to avoid data omission.
  • S707 The multicast control unit determines that the second condition is satisfied.
  • step S708 and step S709 are executed. If it is determined that the second condition is not met, the multicast service settings of the second device and the third device may not be changed, or a time may be set, and step S708 or step S709 is performed when the time arrives. For the time, reference may be made to the description of step S507, which is not repeated here. It should be noted that the embodiment of the present application does not limit the execution time of step S708 and step S709, and the sequence in FIG. 7 is a possible embodiment in which step S708 and step S709 are executed simultaneously.
  • the second condition may include that the number of at least one terminal included in the second terminal is less than or equal to the fourth threshold.
  • the number of at least one terminal included in the second terminal may be the number of second terminals that are receiving a certain multicast service (for example, the first multicast service) or the second terminal that is interested in the multicast service, or may be receiving any The number of multicast services or all second terminals interested in any multicast service.
  • the present application does not limit the fourth threshold, and the fourth threshold may be the same as or different from the first threshold.
  • the fourth threshold when the number of second terminals that are receiving and/or interested in the multicast service that is being transmitted and/or is about to be transmitted within the coverage of the cell included by the second device is less than the fourth threshold, it indicates that the area is There are fewer second terminals in the network, and the multicast service can be transmitted through the second device with lower transmission power.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption;
  • the use of air interface resources is optimized, potential communication interference between the second device and the third device is avoided, deployment difficulty is reduced, and air interface resource waste is avoided.
  • the third device centrally transmits the multicast service, which can improve the transmission efficiency and spectrum utilization rate of the multicast service, save communication resources and energy, improve the communication quality of the multicast service, and improve the user experience.
  • the second condition may include that the number of at least one terminal served by the second terminal by the second device is greater than or equal to the fifth threshold.
  • the second device here may be the second device corresponding to the cell that can be currently camped on and reported by the second terminal after the measurement and reporting, or may be before the second terminal camps on and/or accesses the third device, The second device that resides on or is accessed.
  • the second terminal here includes a terminal that receives the multicast service transmitted by the third device and/or is interested in the multicast service transmitted by the third device, and may also include receiving the multicast service transmitted by the second device, and/or is interested in the multicast service transmitted by the second device. The terminal interested in the multicast service transmitted by the second device.
  • the present application does not limit the fifth threshold, and the fifth threshold may be the same as or different from the second threshold. It can be understood that when the number of at least one terminal served by the second device exceeds the fifth threshold, it means that there are many terminals within the coverage of the second device, and the multicast service can be transmitted centrally through the second device, At this time, the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption; at the same time, optimizing the use of air interface resources to avoid potential communication interference between the second device and the third device, reducing Deployment difficulty and avoid wasting air interface resources.
  • the third device with a larger range and higher transmit power transmits the multicast service, which improves the transmission efficiency and spectrum utilization of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • the second condition may include that the number of at least one access network device included in the second device is all less than or equal to the sixth threshold.
  • This application does not limit the sixth threshold, and the sixth threshold may be the same as or different from the third threshold. It can be understood that when the number of access network devices included in the second device belonging to the cell that provides services for the second terminal is less than the sixth threshold, it means that there are fewer access network devices in the area, and each access network device can pass through each access network.
  • the device transmits multicast services alone.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption; at the same time, optimizing the use of air interface resources and avoiding the communication between the second device and the third device.
  • the existing potential communication interference reduces the difficulty of deployment and avoids wasting air interface resources.
  • the number of access network devices is greater than or equal to the sixth threshold, it indicates that terminals that are receiving and/or interested in multicast services may be distributed under multiple access network devices, which can also be understood as receiving and/or interested in multicast services.
  • Terminals interested in multicast services have a wide distribution range, and can transmit multicast services through third devices with larger coverage and higher transmit power, which improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, while improving the communication quality of multicast services and improving user experience.
  • the second condition may include that the number of terminals or (second terminals) served by each of the at least one access network device included in the second device is less than or equal to the twelfth threshold.
  • This application does not limit the twelfth threshold, and the twelfth threshold may be the same as or different from the eleventh threshold. It can be understood that when the number of terminals served by the access network device exceeds the twelfth threshold, it means that the terminals distributed within the coverage of the access network device are relatively concentrated, and each access network device included in the second device can be used to separate the terminals.
  • the third device with higher power is not used for multicast service transmission, thereby optimizing the energy consumption of the network and reducing power consumption; at the same time, optimizing the use of air interface resources to avoid the existence of the second device and the third device.
  • Potential communication interference reduces deployment difficulty and avoids wasting air interface resources.
  • the number of terminals served by the access network device is less than or equal to the twelfth threshold, it means that the terminals distributed within the coverage of the access network device are relatively scattered, and the third device can transmit multicast services, which improves the multicast performance. Service transmission efficiency and spectrum utilization, saving communication resources and energy, while improving the communication quality of multicast services and improving user experience.
  • the second condition includes that the number of at least one terminal included in the above-mentioned second terminal is less than or equal to the fourth threshold, and the second condition includes: The number of at least one terminal served by the second device in the terminals is greater than or equal to the fifth threshold, or the number of at least one terminal included in the second terminal is less than or equal to the fourth threshold, and at least one access network included in the second device The device is less than or equal to the sixth threshold; or, the number of at least one terminal included in the second terminal is less than or equal to the fourth threshold, and the number of terminals served by at least one access network device included in the second device is greater than or equal to the tenth
  • the second condition may include the above one or more thresholds, and when the conditions
  • S708 The multicast control unit sends third indication information to the second device.
  • the third indication information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service. Stopping the transmission of the multicast service by the third device can be understood as turning off the multicast service service in the cell of the third device, and enabling the multicast service service in the cell of the second device. It can also be understood that after the third device stops transmitting the multicast service, the second device is responsible for the transmission of the multicast service.
  • the third indication information includes second time information, where the second time information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to start Time for transmitting multicast services.
  • the second time information may include the time of the timer, frame number or subframe number, etc., and may also include a third time, etc., where the third time is the time when the second device starts to transmit the multicast service.
  • the third indication information and the second time information reference may be made to the descriptions of the first indication information and the first time information, respectively, which will not be repeated here.
  • the multicast control unit sends fourth indication information to the third device.
  • the fourth indication information may be used to instruct the third device to stop transmitting the multicast service, and/or the second device to transmit the multicast service.
  • the fourth indication information may include fourth time information, where the fourth time information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to start transmitting the multicast service.
  • the fourth time information may include the time of the timer, may also include the frame number or the subframe number, etc., and may also include the fourth time and the like.
  • the fourth time is the time when the third device stops transmitting the multicast service.
  • reference may be made to the descriptions of the second indication information and the second time, which will not be repeated here. It should be noted that the fourth time may be earlier than or equal to the third time, so as to avoid interruption of the multicast service and facilitate the improvement of service quality.
  • This application does not limit the third time and the fourth time, which can be determined according to past experience (for example, the time required for the second device to receive multicast services from the currently connected terminal, etc.), channel quality, and network load. It can be understood that when or before the second device starts to transmit the multicast service, the terminal of the third device completes the configuration of the multicast service, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • the third indication information may also include fourth time information, and the fourth indication information may also include third time information.
  • the third indication information and the fourth indication information may be the same indication information, and the third time information and the fourth time information may be the same time information.
  • S710 The third device sends sixth indication information.
  • the sixth indication information may be used to instruct the sixth terminal to reselect to the second device.
  • the sixth indication information can be broadcast by the third device within the coverage of the third device, which can be understood as broadcasting in the cell under the third device, or broadcasting in the cell where the sixth terminal exists under the second device, etc.
  • the sixth terminal may belong to the second terminal.
  • the sixth terminal may be located within the coverage of the second device and the third device, and receive and/or be interested in the multicast service. It should be noted that the above-mentioned sixth terminal includes a terminal that resides in a cell of the third device.
  • a secondary carrier can be added based on the carrier aggregation technology, or switched to the second device, so as to avoid interruption of multicast services and improve service quality.
  • the sixth indication information may include at least one of the following information: identification information of the second device; configuration information of the multicast service of the second device; second configuration information of the frequency priority of the third device and the second device; The device stops transmitting the instruction information of the multicast service, etc.
  • identification information of the second device may include at least one of the following information: identification information of the second device; configuration information of the multicast service of the second device; second configuration information of the frequency priority of the third device and the second device; The device stops transmitting the instruction information of the multicast service, etc.
  • identification information of the second device identification information of the second device
  • configuration information of the multicast service of the second device of the multicast service of the second device
  • second configuration information of the frequency priority of the third device and the second device may stop transmitting the instruction information of the multicast service, etc.
  • the second configuration information may be used to indicate that the frequency priority of the second device is the highest frequency priority, or to increase the frequency priority of the second device. It can be understood that after the sixth terminal is reselected to the
  • S711 The third device sends second confirmation information to the second device.
  • the second confirmation information may be used to indicate that the terminal corresponding to the third device has been reselected to the second device.
  • Step S711 may be after the second device determines that it is located within the coverage of the second device and the third device, and the terminal receiving the multicast service and/or interested in the multicast service has been reselected to the second device, or it may be the second device.
  • the third device determines to stop transmitting the multicast service, it sends the message to the third device, and so on.
  • the above-mentioned second confirmation information may be sent by the third device to the second device before the time corresponding to the second time information arrives.
  • the third device receives the second confirmation information, it means that it is within the coverage of the second device and the third device, and the terminal that receives the multicast service and/or is interested in the multicast service has been reselected to the second device. Therefore, the terminal can receive the multicast service through the second device, which can avoid service interruption and facilitate the improvement of service quality.
  • the fifth request, the third response message, the sixth request, the third information, the information of the second terminal, the third indication information, the fourth indication information, the sixth indication information, the second confirmation information, etc. can all be transmitted through multicast
  • the service control channel for example, MCCH, or including system information, or RRC information, etc., is sent, which is not limited here.
  • the multicast control unit receives the multicast service or the information of the terminal interested in the multicast service within the coverage of the third device. After the information is received, the indication information of the multicast service is respectively sent to the second device and the third device. Furthermore, the second device can cooperate with the third device to transmit the multicast service, which improves the transmission efficiency and spectrum utilization of the multicast service, saves communication resources and energy, improves the communication quality of the multicast service, and improves the user experience.
  • FIG. 8 is a schematic flowchart of a fourth method for processing a multicast service provided by an embodiment of the present application. The method is applied in the communication network as shown in FIG. 1 . Before implementing the method, the third device does not transmit the multicast service. As shown in Figure 8, where:
  • S801 The third device sends a first request to the second device.
  • S802 The second device sends a first response message to the third device.
  • S803 the second device sends a second request to a terminal within the coverage of the second device;
  • S804 The second device sends the first information of the terminal to the terminal within the coverage of the second device to the second device;
  • S805 the second device acquires the information of the first terminal.
  • S806 Send the information of the first terminal from the second device to the third device.
  • the terminals located within the coverage of the second device include terminals p 1 , . . . , and terminals ps , where S is an integer greater than or equal to 0.
  • the first request and the second request may be used to obtain information of the first terminal.
  • the first terminal is served by at least one cell included in the second device, and the first terminal may include at least one terminal receiving the multicast service, and/or at least one terminal interested in the multicast service.
  • the first response message may be used to indicate that the second device has received the first request, or to indicate that the second device may perform an operation corresponding to the first request.
  • the first information is information of the first terminal.
  • steps S801-S806 reference may be made to the description of steps S501-S506, which will not be repeated here.
  • the third device may transmit the multicast service in a unicast PTP manner. That is to say, the third device may transmit the multicast service to the terminals within the coverage of the third device that are receiving the multicast service and/or interested in the multicast service that is being transmitted or will start to be transmitted.
  • the multicast control unit may also count the information of the terminals under the third device.
  • the method shown in FIG. 8 further includes the following steps S8011 to S8013 (not shown in FIG. 8 ), wherein:
  • the third device sends a fourth request to the terminals within the coverage of the third device;
  • the third device sends the second information of the terminal to the third device to the terminal within the coverage of the third device;
  • S8013 The third device counts the second information to obtain information of the seventh terminal.
  • the seventh terminal is a terminal within the coverage of the third device that is receiving the multicast service and/or is interested in the multicast service that is about to start transmission, and may reside in or access a cell existing under the third device , a terminal that is receiving a multicast service in a unicast PTP manner, and/or is interested in a multicast service that is about to be transmitted by the third device.
  • the fourth request may be used to obtain information of the seventh terminal.
  • the second information may include, but is not limited to: identification information of the terminal, service identification information of the multicast service that the terminal is receiving, service identification information of the multicast service that the terminal is interested in, service identification information of the multicast service that the terminal is not interested in,
  • identification information of the terminal For the location information of the terminal, the channel state information of the terminal, the measurement result of the terminal, the capability information of the terminal, etc., reference may be made to the description of the first information, and details are not repeated here.
  • steps S8011 to S8013 may refer to the description of steps S613 to S615, which will not be repeated here.
  • S807 The third device determines that the first condition is satisfied.
  • step S808 is performed.
  • the first condition may include at least one of the following: the number of at least one terminal included in the first terminal is less than or equal to the first threshold; the number of terminals served by each cell included in the second device in the first terminal is less than or equal to the first terminal; Two thresholds; the number of at least one access network device included in the second device is greater than or equal to the third threshold; the number of terminals served by each access network device in the at least one access network device included in the second device is less than or equal to equal to the eleventh threshold, etc., reference may be made to the description of step S507, and details are not repeated here.
  • steps S8011 to S8013 are executed, it is also necessary to judge whether the information of the first terminal and the information of the seventh terminal satisfy the first condition.
  • S808 The third device sends the first indication information to the second device.
  • the first indication information may be used to instruct the third device to transmit the multicast service, and/or the second device to stop transmitting the multicast service.
  • the first indication information may include first time information, and the first time information is used to instruct the third device to start transmitting the multicast service, and/or instruct the second device to stop transmitting the multicast service. Refer to step S505. and the description of step S509, which will not be repeated here.
  • S809 the second device sends fifth indication information.
  • the fifth indication information may be used to instruct the fifth terminal to reselect to the third device, and the fifth indication information may include at least one of the following: identification information of the third device; configuration information of the multicast service of the third device; The first configuration information of the frequency point priority of the device and the second device; the indication information that the second device stops transmitting the multicast service, etc.
  • identification information of the third device may include at least one of the following: identification information of the third device; configuration information of the multicast service of the third device; The first configuration information of the frequency point priority of the device and the second device; the indication information that the second device stops transmitting the multicast service, etc.
  • S510 which is not repeated here. It can be understood that after the fifth terminal can be reselected to the third device according to the fifth indication information, the third device can transmit the multicast service to the fifth terminal, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • S810 The second device sends the first confirmation information to the third device.
  • the first confirmation information may be used to indicate that the terminal corresponding to the second device has been reselected to the third device.
  • Step S511 may be after the second device determines that it is located within the coverage of the second device and the third device, and the terminal receiving the multicast service and/or interested in the multicast service has been reselected to the third device, or it may be the third device.
  • the second device determines to stop transmitting the multicast service, it sends the message to the third device.
  • the above-mentioned first confirmation information may be sent by the second device to the third device before the time corresponding to the first time information arrives.
  • the third device receives the first confirmation information, it means that it is within the coverage of the second device and the third device, and the terminal that receives the multicast service and/or is interested in the multicast service has been reselected to the third device. Therefore, the terminal can receive the multicast service through the third device, which can avoid service interruption and facilitate the improvement of service quality.
  • the indication information, the second indication information, etc. can be sent through a multicast service control channel, for example, MCCH, or including system information, or RRC information, etc., which are not limited herein.
  • the third device receives the multicast service from the second device within the coverage of the second device, or receives the multicast service or is interested in the multicast service.
  • the indication information of the multicast service is sent to the second device.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • FIG. 9 is a schematic flowchart of a fifth multicast service processing method proposed by an embodiment of the present application. The method is applied in the communication network as shown in FIG. 1 . Before implementing the method, the third device transmits the multicast service, wherein:
  • S901 The third device sends a sixth request to the terminals within the coverage of the third device.
  • the terminals within the coverage of the third device include terminals W 1 , . . . , terminals W J , where J is an integer greater than or equal to 1.
  • the sixth request is used to obtain the information of the second terminal, the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service. a terminal.
  • This application does not limit the execution conditions of step S901, which may be that the third device reports to the third device at regular intervals, when the second device satisfies the first constraint condition, or the third device satisfies the first constraint condition. when step S901 is executed.
  • step S901 reference may be made to the descriptions of step S501 and the fourth request.
  • step S901 reference may be made to the description of step S701, which will not be repeated here.
  • S902 the third device receives third information from the second terminal.
  • the information of the second terminal may be used to indicate the number of at least one terminal included in the second terminal.
  • the information of the second terminal includes but is not limited to the following information: within the coverage of the second device, the number of terminals receiving multicast services and/or interested in multicast services; the number of at least one terminal included in the second terminal; identification information of the second terminal; service identification information of the multicast service that the second terminal is interested in and/or is receiving; location information of the second terminal; channel state information of the second terminal; measurement results of the second terminal; Terminal capability information, etc.
  • the second terminal and the third information of the second terminal reference may be made to the description of step S701 and step S704.
  • step S902 specifically includes the following two ways, wherein:
  • the third device receives third information of the third terminal from the second terminal, where the third terminal is at least one terminal included in the second terminal.
  • the third device receives third information of the fourth terminal from the second device, where the fourth terminal is a terminal other than the third terminal among at least one terminal included in the second terminal.
  • the terminal in the second terminal can directly send uplink data to the third device
  • the terminal can be used as the third terminal to send the third information of the third terminal to the third device in the first manner, or can be used as the third terminal to send the third information of the third terminal to the third device in the first manner.
  • the fourth terminal sends the information of the fourth terminal to the third device in the second manner.
  • the third terminal cannot send the uplink data to the multicast control unit, it can be used as the fourth terminal to send the information of the fourth terminal to the third device through the second method, so as to avoid data omission.
  • S903 the third device acquires the information of the second terminal.
  • step S903 may refer to the description of step S705, which will not be repeated here.
  • S904 The third device determines that the second condition is satisfied.
  • the second condition may include at least one of the following: the number of at least one terminal included in the second terminal is less than or equal to the fourth threshold; the number of at least one terminal in the second terminal that is served by the second device is greater than or equal to the fifth threshold ; at least one access network device included in the second device is less than or equal to the sixth threshold; the number of terminals served by each access network device in the at least one access network device included in the second device is less than or equal to the twelfth threshold
  • the threshold etc., reference may be made to the description of step S707, and details are not repeated here.
  • S905 The third device sends third indication information to the second device.
  • the third indication information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service. It can be understood that the cell of the third device turns off the multicast service service, and the cell of the second device turns on the multicast service service. It can also be understood that after the third device stops transmitting the multicast service, the second device is responsible for the transmission of the multicast service.
  • the third indication information may include second time information, where the second time information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device
  • the time for starting the transmission of the multicast service can be referred to the description of step S708, which is not repeated here.
  • S906 the third device sends sixth indication information.
  • the sixth indication information may be used to instruct the sixth terminal to reselect to the second device, and the sixth indication information may include at least one of the following: identification information of the second device; configuration information of the multicast service of the second device; the third device and The second configuration information of the frequency point priority of the second device; the instruction information of the third device to stop transmitting the multicast service. It can be understood that after the sixth terminal can be reselected to the second device according to the sixth indication information, the second device can transmit the multicast service to the sixth terminal, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • S907 The third device sends second confirmation information to the second device.
  • the second confirmation information may be used to indicate that the terminal corresponding to the third device has been reselected to the second device.
  • Step S907 may be after the second device determines that it is located within the coverage of the second device and the third device, and the terminal receiving the multicast service and/or interested in the multicast service has been reselected to the second device, or it may be the second device.
  • the third device determines to stop transmitting the multicast service, it sends the message to the third device, and so on.
  • the above-mentioned second confirmation information may be sent by the third device to the second device before the time corresponding to the second time information arrives.
  • the third device receives the second confirmation information, it means that it is within the coverage of the second device and the third device, and the terminal that receives the multicast service and/or is interested in the multicast service has been reselected to the second device. Therefore, the terminal can receive the multicast service through the second device, which can avoid service interruption and facilitate the improvement of service quality.
  • the above-mentioned sixth request, third information, information of the second terminal, third indication information, sixth indication information, second confirmation information, etc. can all pass through the multicast service control channel, for example, MCCH, or include system information, or RRC information and the like are sent, which is not limited here.
  • the third device after the third device transmits the multicast service, after receiving the information of the second terminal, the third device sends the indication information of the multicast service to the second device.
  • the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • Inter-cell Interference Coordination (ICIC) technology is suitable for interference control on downlink (Down Link, DL) control channels.
  • An almost blank subframe (ABS) is a subframe introduced in the enhanced ICIC (eICIC) technology, in which time domain ICIC is added.
  • ABS subframes contain only control information and cell-specific reference signals, no user data, and are transmitted at reduced power.
  • the coverage of eNB1 is larger than that of eNB2.
  • eNB1 will reduce the power to transmit the above on the ABS subframe in the downlink radio frame (DL radio frame). control information and reference signals.
  • eNB2 uses the subframe corresponding to the ABS subframe on the DL radio frame to send user data to the terminal (for example, terminal 101) located at the edge of the cell existing under eNB2, so that the terminal 101 can be based on the DL radio frame of eNB1.
  • the third device In the communication network corresponding to the third device and the second device, if the frequencies between the second device and the third device are the same, the third device with higher power will cause greater interference to the second device. However, if the third device adopts the eICIC technology to reduce power to transmit the multicast service, the coverage of the third device will be reduced. Therefore, the eICIC technology is not suitable for multicast service transmission in the communication network composed of the above-mentioned third device and the second device.
  • the present application proposes a sixth method for processing multicast services, which can be applied to the communication network corresponding to the second device and the third device, which may be the communication network shown in FIG.
  • the communication network shown in 2 is not limited here.
  • the coverage of the third device includes the coverage of the second device, the second device and the third device are deployed on the same frequency, and the time-frequency resources between the third device and the second device are different.
  • the coverage of the third device 1110 includes the coverage of the second device 1120 , the second device 1121 , and the second device 1122 , and the time-frequency resources used by the third device 1110 are the gray corresponding to part A in FIG.
  • the time-frequency resources used by the second device 1120, the second device 1121, and the second device 1122 are the gray areas corresponding to part B in FIG. 11 . It can be understood that the time-frequency resources used by the third device 1110 and the second device 1120, the second device 1121 and the second device 1122 are different, and by dividing the time-frequency resources, the interference of the third device to the second device can be avoided, which improves the The transmission efficiency and spectrum utilization of the multicast service saves communication resources and energy, and at the same time improves the communication quality of the multicast service and improves the user experience.
  • FIG. 12 is a schematic flowchart of a sixth method for processing a multicast service provided by an embodiment of the present application. As shown in Figure 12, where:
  • S1201 The second device sends a seventh request to the third device.
  • the seventh request may be used to instruct the third device to allocate resources to the second device.
  • the seventh request may include resource information of the second device, for example, the second device transmits resources used by all services; the second device transmits resources used by all multicast services; the second device transmits resources used by each multicast service resources; resources allocated by the second device; resources to be allocated/remaining by the second device; resource usage of the second device, etc.
  • the seventh request further includes information of the second device, for example, service identifier information corresponding to the multicast service transmitted on the second device; service identifier information corresponding to the service transmitted on the second device; priority of the multicast service; priority; device identification of the second device; priority of the second device; location information of the second device; capability information of the second device; information of terminals served by cells existing under the second device, and the like.
  • the priority of the service and the priority of the multicast service may be the priority of allocating resources, or the priority of the service itself.
  • the priority of the second device may be the priority of allocating resources, or may be the priority of the multicast service transmitted in the second device and/or the priority of the transmission service, and the like.
  • the information of the terminal served by the cell existing under the second device can refer to the description of the information of the first terminal, and the device identifier, location information, and capability information of the second device can also refer to the device identifier, location information, and capability information of the first terminal. description, which will not be repeated here.
  • the service identification information of the service is used to identify the service, and the first service is used as an example.
  • the service identification information of the first service may be the identification information of the application corresponding to the first service, or may be TMGI or service ID, or the first service ID.
  • the wireless network identifier eg, G-RNTI
  • G-RNTI a wireless network identifier corresponding to the service and used to schedule a group of terminals to receive the first service, or the identification information used to identify the PDU session in the PDU session in which the first service is transmitted, and the like.
  • the service identification information of the first multicast service may further include an identifier used to identify the multicast session in the multicast session in which the first multicast service is transmitted information (for example, when the multicast service is MBS, the identification information of the multicast session may be the identification information of the MBS session) and the like.
  • This application does not limit the above information.
  • Some of the above information such as: service priority, multicast service priority, device identification of the second device, location information, capability information, and existing information under the second device
  • the information of the terminal served by the cell, etc. can be used to obtain the priority of the second device.
  • the device identification can be used to identify the second device, the service identification information of the service can be used to identify the service, and the service identification information of the multicast service can be used to identify the multicast service; the priority of the service, the priority of the multicast service and the priority of the second device All levels affect the allocation sequence of resources; the allocated resources, and/or the resources to be allocated, and/or the remaining resources can affect the allocation quantity of the resources of the multicast service; The information may also affect the resource allocation of the second device. It can be understood that the third device can allocate resources to the second device based on the information in the seventh request, which improves the accuracy of resource allocation.
  • the seventh request may be sent by the second device to the third device at regular intervals, or may be when the multicast service transmitted by the second device satisfies a constraint condition sent to a third device.
  • a constraint condition sent to a third device.
  • S1202 The second device sends seventh indication information to the third device.
  • the seventh indication information may be used to indicate unallocated resources occupied by the second device.
  • the resource may be a resource not allocated to the second device, or may be a resource not allocated to a certain service or a certain multicast service, etc., which are not limited herein.
  • the second device may send seventh indication information to the third device after preferentially occupying some unallocated resources. In this way, the third device avoids using the resources occupied by the second device through the seventh indication information, thereby avoiding interference between the second device and the third device, improving resource utilization, and facilitating the improvement of service quality.
  • This application does not limit the seventh indication information, which may include unallocated resources occupied by the second device, and may also include other resource information of the second device, such as: resources used by the second device to transmit all services; The resources used by the device to transmit all multicast services; the resources used by the second device to transmit each multicast service; the resources allocated by the second device; the resources to be allocated/remaining by the second device; the resource usage of the second device Wait.
  • the seventh indication information may also include information of the second device, for example, service identifier information corresponding to the multicast service transmitted on the second device; service identifier information corresponding to the service transmitted on the second device; the priority of the multicast service; The priority of the service; the device identifier of the second device; the priority of the second device; the location information of the second device; the capability information of the second device; the information of the terminal served by the cell existing under the second device, etc.
  • the third device acquires/evaluates fourth information of the third device.
  • the fourth information may include at least one of the following information: resources and/or remaining resources used by the third device to transmit services; resources and/or resources used by the third device to transmit multicast services Remaining resources; resources allocated and/or unallocated by the third device; resource information such as resources that can be optimized in the terminal that resides on the cell of the third device and/or which are accessed, etc. limited.
  • the resources to be allocated to the third device may include remaining resources of the third device, unallocated resources, and optimizable resources, and the like.
  • the fourth information can be used to count resource information corresponding to all services, and resource statistics can be performed according to different services and/or different multicast services, or resource statistics can be performed on specified services and/or multicast services. , and resource statistics can also be performed according to the multicast service provided by the cell existing under the third device, which is not limited here.
  • This application does not limit the method for obtaining/evaluating the fourth information, which may be obtained by the third device according to its own resource usage, or may be channel state information or measurement of the terminal residing on/connecting to the third device.
  • the result is evaluated to obtain the channel quality of the terminal, so as to determine whether there are resources that can be optimized. It can be understood that when the channel quality of the terminal is good, resources can be saved by increasing the code rate, thereby obtaining optimizable resources according to the estimated channel quality.
  • Step S1203 may be that the third device obtains the fourth information of the multicast service transmitted by the third device at regular intervals, or the multicast control unit (or the second device) requests the third device to send the multicast control unit to the multicast control unit (or the second device) at regular intervals. Resource information reported by the unit. It can also be that the multicast service transmitted by the third device satisfies a constraint condition, or the multicast service transmitted by the second device can be reported to the third device when it satisfies a constraint condition, so as to execute step S1203, the above time Refer to the description of step S501 for the and constraint conditions, which will not be repeated here. It may also be based on the seventh request in step S1201 or the seventh indication information in step S1202 to perform step S1203, etc., which is not limited here.
  • S1204 The third device sends an eighth request to the second device.
  • the eighth request is used to acquire resource information of the second device.
  • the eighth request may be a resource statistics request (for example, resource information request, etc.), which may be used to obtain resource information for the second device to transmit a multicast service.
  • the eighth request may specify the content of the resource information of the second device, and an expression manner (eg, a bitmap) for describing the resource information, etc., which are not limited herein.
  • the eighth request may be that the third device obtains the fourth information of the multicast service transmitted by the third device at regular intervals, or may be that the multicast service transmitted by the third device meets a constraint condition, or may be the second request.
  • step S1204 When the multicast service transmitted by the device satisfies a constraint condition, it is reported to the third device, so as to execute step S1204 and so on.
  • the eighth request may also be sent to the second device when the third device determines in step S1203 that there are remaining resources or resources that can be optimized.
  • S1205 The second device sends fifth information to the third device.
  • the fifth information may include resource information of the second device, for example: the second device transmits resources used by all services; the second device transmits resources used by all multicast services; Resources used by the multicast service; resources allocated by the second device; resources to be allocated/remaining by the second device; resource usage of the second device, etc.
  • the fifth information may also include information of the second device, for example, service identification information corresponding to the multicast service transmitted on the second device; service identification information corresponding to the service transmitted on the second device; the priority of the multicast service; the priority of the second device; the device identifier of the second device; the priority of the second device; the location information of the second device; the capability information of the second device; the information of the terminal served by the cell existing under the second device, etc. Do limit.
  • the fifth information is the resource information of the second device described in the previous seventh request, and the third device can perform resource allocation based on the above information, so as to improve the accuracy of resource allocation.
  • the fifth information can count the used/to-be-allocated/remaining resources in all services, or can count the used/to-be-allocated/remaining resources in different services or multicast services, or can count the specified services or multicast services.
  • Used/to-be-allocated/remaining resources, etc., the cell existing under the second device can also be used as a unit to count the used/to-be-allocated/remaining resources in the cell, or the access network device under the second device is used as a unit , to count the used/to-be-allocated/remaining resources in the cell, etc., and also to perform resource statistics according to the priority of the service or multicast service, which is not limited here.
  • step S1205 may be sent by the second device to the third device at regular intervals, or the multicast control unit (or the third device) may request the second device at regular intervals Resource information reported to the multicast control unit.
  • the multicast service transmitted by the second device satisfies a constraint condition
  • a request for reporting is made to the second device, thereby performing step S1203 and the like. It may also be performed based on the eighth request in step S1204.
  • the fifth information may be carried in the seventh indication information and sent to the third device. It can be understood that when the method performs step S1202, step S1205 is no longer performed.
  • S1206 The third device acquires eighth indication information according to the fourth information and/or the fifth information.
  • the eighth indication information may be used to instruct the second device to perform service transmission or multicast service transmission according to different time-frequency resources from the third device, or how to perform service transmission (for example, what kind of service or multicast service to transmit, to Unicast PTP transmission or multicast PTM transmission, etc.).
  • This application does not limit the method for obtaining the eighth indication information, and the allocated resources in the eighth indication information may be allocated according to the priority of the service and/or the multicast service and/or the second device, which is convenient to improve the transmission efficiency of the service and the priority of the second device. Spectrum utilization, saving communication resources and energy, while improving the communication quality of services and improving user experience.
  • the third device may allocate resources according to the used/to be allocated/remaining resources in the fourth information.
  • the third device may perform resource allocation according to the fifth information to obtain the eighth indication information. For example, when there are many resources to be allocated to the second device, more time-frequency resources and the like may be allocated to the second device.
  • the third device may also perform resource allocation according to the seventh indication information to obtain the eighth indication information. For example, the resource occupied by the second device is allocated to the second device, so that no other device allocates the resource, and so on.
  • S1207 The third device sends eighth indication information to the second device.
  • step S1207 which may be sent to the second device after step S1206, or the multicast control unit (or the third device) requests the second device to multicast to the multicast at intervals Resource information reported by the control unit.
  • the multicast service transmitted by the second device satisfies a constraint condition
  • a request for reporting is made to the second device, thereby performing step S1203 and the like. It may also be performed based on the eighth request in step S1204.
  • the fifth information may be carried in the seventh indication information and sent to the third device. It can be understood that when the method performs step S1202, step S1205 is no longer performed.
  • S1208 The second device sends third confirmation information to the third device.
  • the third confirmation information may be used to indicate that the eighth indication information has been received, or may be used to indicate that the second device has transmitted the multicast service according to the resources allocated in the eighth indication information.
  • the third device acquires the third device to transmit multicast
  • the eighth indication information is sent to the second device, thereby instructing the second device to transmit the multicast service according to different time-frequency resources from the third device, which can prevent the third device from interfering with the second device and improve the performance of the second device. It improves the transmission efficiency and spectrum utilization of multicast services, saves communication resources and energy, improves the communication quality of multicast services, and improves user experience.
  • FIG. 13 is a schematic flowchart of a seventh method for processing a multicast service provided by an embodiment of the present application.
  • the third device does not transmit the multicast service.
  • the method is applied to the second device, and includes the following steps S1301 and S1302, wherein:
  • S1301 The second device sends the information of the first terminal to the first device.
  • the first device is a third device or a multicast control unit.
  • the second device may include at least one cell and may be used to transmit multicast services, the first terminal may be served by at least one cell included in the second device, and the first terminal may include at least one terminal receiving the multicast service, and/or At least one terminal interested in the multicast service.
  • S1302 The second device receives the first indication information from the first device.
  • the first indication information may be used to instruct the first device or the third device to transmit the multicast service
  • the third device is an access network device
  • the third device may be used to transmit the multicast service.
  • the first indication information may include first time information, where the first time information may be used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the first time The information is used to indicate the time when the second device stops transmitting the multicast service.
  • the first time information indicates the time when the third device starts to transmit the multicast service, and/or the time when the second device stops transmitting the service, so that the interruption of the multicast service can be avoided and the service quality can be improved.
  • the information of the first terminal may include at least one of the following: service identification information of the multicast service of the first terminal; location information of the first terminal; and channel state information of the first terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the second device and the third device can separately or jointly provide wireless communication services for the same terminal, which improves the flexibility of access network equipment and service deployment, improves spectrum utilization, and improves network coverage. , to increase network capacity.
  • the method shown in FIG. 13 further includes: the second device sends fifth indication information, where the fifth indication information is used to instruct the fifth terminal to reselect to the third device, and the fifth The terminal is located within the coverage of the second device and the third device, and receives and/or is interested in the multicast service.
  • the fifth terminal is reselected to the third device based on the fifth indication information, and can receive the multicast service transmitted by the third device, which avoids interruption of the multicast service and facilitates the improvement of service quality.
  • the fifth indication information may include at least one of the following: identification information of the third device; configuration information of the multicast service of the third device; frequency priority of the third device and the second device The first configuration information of the level; the second device stops transmitting the instruction information of the multicast service.
  • the fifth terminal can be reselected to the third device based on the above different fifth indication information, which can improve the accuracy of the reselection.
  • the second device sends the information of the first terminal to the first device, and receives the information sent by the first device for indicating the first device or The third device transmits the first indication information of the multicast service.
  • the second device can cooperate with the third device to transmit the multicast service through the first indication information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • FIG. 14 is a schematic flowchart of an eighth multicast service processing method proposed by an embodiment of the present application.
  • the third device transmits the multicast service.
  • the method is applied to the second device, and includes the following step S1401, wherein:
  • S1401 The second device receives third indication information from the first device.
  • the first device is a third device or a multicast control unit.
  • the third indication information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service.
  • the third indication information is received after the first device receives the information of the second terminal, and the second device may include at least one cell and may be used to transmit a multicast service.
  • the third device is an access network device and can be used to transmit multicast services.
  • the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service.
  • the third indication information may include second time information, where the second time information may be used to instruct the first device or the third device to stop transmitting the multicast service, and/or the second time The information may be used to indicate when the second device starts transmitting the multicast service.
  • the third time information indicates the time when the second device starts to transmit the multicast service, and/or the time when the third device stops transmitting the multicast service, which can avoid interruption of the multicast service and facilitate the improvement of service quality.
  • the first device is a third device
  • the information of the second terminal may include information of the third terminal sent by the second terminal to the first device, and/or sent by the second device to the first device
  • the information of the fourth terminal wherein the third terminal is at least one terminal included in the second terminal, and the fourth terminal is a terminal other than the third terminal in the at least one terminal included in the second terminal. Sending the information of the second terminal to the third device in the above two ways can avoid data omission.
  • the information of the second terminal may include at least one of the following: the second terminal is receiving a multicast service, and/or service identification information of interested multicast services, and the location of the second terminal information, the channel state information of the second terminal.
  • the number of second terminals under different limited conditions can be obtained through the above information of different second terminals, which can facilitate the improvement of transmission efficiency and spectrum utilization of multicast services, save communication resources and energy, and ensure the quality of multicast services. Improve user experience.
  • the second device when the third device transmits the multicast service, the second device receives information from the first device for instructing the first device or the third device to stop transmitting the multicast service, and/or the second device The device transmits the third indication information of the multicast service. In this way, the second device can cooperate with the third device to transmit the multicast service through the third instruction information, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service. user experience.
  • FIG. 15 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus may be a first device, including:
  • a receiving unit 1501 configured to receive information of a first terminal from a second device, the second device includes at least one cell, and is used for transmitting multicast services, the first terminal is served by at least one cell, and the first terminal includes receiving multicast services at least one terminal of the service, and/or at least one terminal interested in the multicast service;
  • the sending unit 1502 is configured to send first indication information to the second device, where the first indication information is used to instruct the first device or the third device to transmit a multicast service, and the third device is an access network device and is used to transmit multicast services business.
  • the information of the first terminal is used to indicate the number of at least one terminal included in the first terminal; the sending unit 1502 is specifically configured to send the first indication information to the second device if the first condition is satisfied, and the first condition includes The number of at least one terminal is greater than or equal to the first threshold; and/or the first condition includes that the number of terminals in the first terminal served by each cell included by the second device is less than or equal to the second threshold; and/or the first condition includes: A condition includes that the number of at least one access network device included in the second device is greater than or equal to a third threshold.
  • the first indication information includes first time information, where the first time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the first time information is used to indicate the second device Time to stop transmitting multicast services.
  • the first device is a multicast control unit
  • the sending unit 1502 is further configured to send second indication information to the third device, where the second indication information is used to instruct the third device to transmit the multicast service, and/or the second device Stop transmitting multicast services.
  • the information of the first terminal includes at least one of the following: service identification information of the multicast service of the first terminal; location information of the first terminal; and channel state information of the first terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the sending unit 1502 is further configured to send the first request to the second device.
  • the receiving unit 1501 is further configured to receive the first response information sent by the second device.
  • the first device is a multicast control unit
  • the multicast control unit further includes a processing unit (not shown in FIG. 15 ) for determining whether the first condition is satisfied.
  • the communication apparatus may be a first device, including:
  • the receiving unit 1501 is configured to receive the information of the second terminal, the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service.
  • a terminal, the third device is an access network device and is used to transmit multicast services;
  • the sending unit 1502 is configured to send third indication information to the second device, where the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service, the second The device includes at least one cell and is used to transmit multicast services.
  • the information of the second terminal is used to indicate the number of at least one terminal included in the second terminal; the communication unit is specifically configured to send third indication information to the second device if the second condition is satisfied, and the second condition includes at least one terminal.
  • the number of terminals is less than or equal to the fourth threshold; and/or the second condition includes that the number of at least one terminal in the second terminal served by the second device is greater than or equal to the fifth threshold.
  • the information of the second terminal is used to indicate the number of at least one terminal included in the second terminal; the communication unit is specifically configured to send third indication information to the second device if the second condition is satisfied, and the second condition includes at least one terminal.
  • the number of terminals is less than or equal to the fourth threshold; and/or the second condition includes that the number of at least one access network device included in the second device is less than or equal to the sixth threshold.
  • the third indication information includes second time information, where the second time information is used to indicate the time when the first device or the third device stops transmitting the multicast service, and/or the second time information is used to indicate the second device Time to start transmitting multicast services.
  • the first device is a multicast control unit
  • the sending unit 1502 is further configured to send fourth indication information to the third device, where the fourth indication information is used to instruct the third device to stop transmitting the multicast service, and/or the second The device transmits multicast services.
  • the first device is a third device
  • the receiving unit 1501 is specifically configured to receive information about the third terminal from the second terminal, where the third terminal is at least one terminal included in the second terminal; and/or receive information from the second device Information of the fourth terminal, where the fourth terminal is a terminal other than the third terminal among at least one terminal included in the second terminal.
  • the information of the second terminal includes at least one of the following: service identification information of the multicast service of the second terminal; location information of the second terminal; and channel state information of the second terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the first device is a third device
  • the sending unit 1502 is further configured to send sixth indication information, where the sixth indication information is used to instruct the sixth terminal to reselect to the second device, and the sixth terminal is located between the second device and the first device.
  • the three devices are within the coverage range, and receive multicast services and/or are interested in multicast services.
  • the sixth indication information may include any one or more of the following: identification information of the second device; configuration information of the multicast service of the second device; 2. Configuration information; the third device stops transmitting the instruction information of the multicast service.
  • the first device is a multicast control unit
  • the sending unit 1502 is further configured to send a fifth request to the third device.
  • the first device is a multicast control unit
  • the receiving unit 1501 is further configured to receive the third response information sent by the third device.
  • the first device is a third device
  • the sending unit 1502 is further configured to send a sixth request to a terminal within the coverage of the third device.
  • the first device is a third device
  • the receiving unit 1501 is further configured to receive third information from terminals within the coverage of the third device.
  • the first device is a third device
  • the communication apparatus further includes a processing unit (not shown in FIG. 15 ), configured to acquire information of the second terminal.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the receiving unit 1501 is further configured to receive the transmission from the second device. the seventh request.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the receiving unit 1501 is further configured to receive the transmission from the second device.
  • the seventh instruction information is further configured to receive the transmission from the second device.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processing unit is further configured to acquire/evaluate the third device. Fourth information of the device.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the sending unit 1502 is further configured to send to the second device Eighth request.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the receiving unit 1501 is further configured to receive the transmission from the second device. the fifth message.
  • the processing unit is further configured to acquire eighth indication information according to the fourth information and/or the fifth information.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the sending unit 1502 is further configured to send to the second device Eighth indication information.
  • the communication apparatus may be a second device, including:
  • the sending unit 1502 is configured to send the information of the first terminal to the first device, the second device includes at least one cell, and is used for transmitting multicast services, the first terminal is served by at least one cell, and the first terminal includes receiving multicast services at least one terminal of , and/or at least one terminal interested in multicast services;
  • the receiving unit 1501 is configured to receive first indication information from the first device, where the first indication information is used to instruct the first device or the third device to transmit a multicast service, and the third device is an access network device and is used to transmit a multicast service .
  • the first indication information includes first time information, where the first time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the first time information is used to indicate the second device Time to stop transmitting multicast services.
  • the information of the first terminal includes at least one of the following: service identification information of the multicast service of the first terminal; location information of the first terminal; and channel state information of the first terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the sending unit 1502 is further configured to send fifth indication information, where the fifth indication information is used to instruct the fifth terminal to reselect to the third device, the fifth terminal is located within the coverage of the second device and the third device, and Receiving and/or interested in multicast services.
  • the fifth indication information may include any one or more of the following: identification information of the third device; configuration information of the multicast service of the third device; 1. Configuration information; information indicating that the second device stops transmitting the multicast service.
  • the receiving unit 1501 is further configured to receive the first request sent by the first device.
  • the sending unit 1502 is further configured to send the first response message to the first device.
  • the sending unit 1502 is further configured to send the second request to the terminal within the coverage of the second device.
  • the receiving unit 1501 is further configured to receive the first information sent by the terminal within the coverage of the second device.
  • the communication apparatus further includes a processing unit (not shown in FIG. 15 ), configured to acquire the information of the first terminal.
  • a processing unit (not shown in FIG. 15 ), configured to acquire the information of the first terminal.
  • the communication apparatus may be a second device, including:
  • the receiving unit 1501 is configured to receive third indication information from the first device, where the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service, the third The indication information is received after the first device receives the information of the second terminal, the second device includes at least one cell and is used to transmit multicast services, and the third device is an access network device and is used to transmit multicast services service, the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service.
  • the third indication information includes second time information, where the second time information is used to indicate the time when the first device or the third device stops transmitting the multicast service, and/or the second time information is used to indicate the second device Time to start transmitting multicast services.
  • the first device is a third device
  • the information of the second terminal includes the information of the third terminal sent by the second terminal to the first device, and/or the information of the fourth terminal sent by the second device to the first device.
  • the third terminal is at least one terminal included in the second terminal
  • the fourth terminal is a terminal other than the third terminal among the at least one terminal included in the second terminal.
  • the information of the second terminal includes at least one of the following: service identification information of the multicast service of the second terminal; location information of the second terminal; and channel state information of the second terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the receiving unit 1501 is further configured to receive the second confirmation information sent by the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the sending unit 1502 is further configured to send a seventh request to the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the sending unit 1502 is further configured to send seventh indication information to the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the receiving unit 1501 is further configured to receive an eighth request sent by the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the sending unit 1502 is further configured to send fifth information to the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the receiving unit 1501 is further configured to receive the eighth indication information sent by the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the sending unit 1502 is further configured to send third confirmation information to the third device.
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 , FIG. 9 and FIG. 12 .
  • FIG. 16 is another communication apparatus provided by an embodiment of the present application, where the communication apparatus includes a processor 1601 and a memory 1602 coupled to the processor 1601 .
  • the memory 1602 can be a device with a storage function, including but not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (erasable programmable read-only memory) read only memory, EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), the memory 1602 is used for related computer programs and sideline data.
  • the communication interface 1603 is used to receive and transmit sideline data.
  • the processor 1601 may be a device with processing functions, and may include one or more processors.
  • the processor may be a general-purpose processor or a special-purpose processor, or the like.
  • the processor may be a baseband processor, or a central processing unit.
  • the baseband processor can be used to process the communication protocol and communication data
  • the central processing unit can be used to control the communication device, execute the software program, and process the data of the software program.
  • the communication apparatus may be a first device, and the processor 1601 in the first device is configured to read the computer program code stored in the memory 1602, and perform the following operations:
  • Receive information of the first terminal from a second device includes at least one cell and is used for transmitting multicast services, the first terminal is served by the at least one cell, and the first terminal includes at least one terminal receiving the multicast service and /or at least one terminal interested in multicast services;
  • the information of the first terminal is used to indicate the number of at least one terminal included in the first terminal; the processor 1601 is specifically configured to perform the following operations: if the first condition is satisfied, send the first indication information to the second device, and the first A condition includes that the number of at least one terminal is greater than or equal to the first threshold; and/or the first condition includes that the number of terminals in the first terminal served by each cell included by the second device is less than or equal to the second threshold; And/or the second device includes at least one access network device, and the first condition includes that the number of the at least one access network device is greater than or equal to a third threshold.
  • the first indication information includes first time information, where the first time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the first time information is used to indicate the second device Time to stop transmitting multicast services.
  • the first device is a multicast control unit
  • the processor 1601 is further configured to perform the following operations: send second indication information to the third device, where the second indication information is used to instruct the third device to transmit the multicast service, and/ Or the second device stops transmitting the multicast service.
  • the information of the first terminal includes at least one of the following: service identification information of the multicast service of the first terminal; location information of the first terminal; and channel state information of the first terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the processor 1601 is further configured to perform the following operation: send the first request to the second device.
  • the processor 1601 is further configured to perform the following operation: receive the first response information sent by the second device.
  • the first device is a multicast control unit
  • the processor 1601 is further configured to perform the following operation: determine whether the first condition is satisfied.
  • the communication apparatus may be a first device, and the processor 1601 in the first device is configured to read the computer program code stored in the memory 1602, and perform the following operations:
  • the second terminal is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service, the third The device is an access network device and is used to transmit multicast services;
  • the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service
  • the second device includes at least one cell , and is used to transmit multicast services.
  • the information of the second terminal is used to indicate the number of at least one terminal included in the second terminal; the processor 1601 is specifically configured to perform the following operations: if the second condition is met, the first device sends a third indication to the second device information, the second condition includes that the number of at least one terminal is less than or equal to the fourth threshold; and/or the second condition includes that the number of at least one terminal in the second terminal served by the second device is greater than or equal to the fifth threshold; and/ Or the second device includes at least one access network device, and the second condition includes that the number of at least one access network device is less than or equal to the sixth threshold.
  • the third indication information includes second time information, where the second time information is used to indicate the time when the first device or the third device stops transmitting the multicast service, and/or the second time information is used to indicate the second device Time to start transmitting multicast services.
  • the first device is a multicast control unit
  • the processor 1601 is further configured to perform the following operations: send fourth indication information to the third device, where the fourth indication information is used to instruct the third device to stop transmitting the multicast service, and /or the second device transmits the multicast service.
  • the first device is a third device
  • the processor 1601 is specifically configured to perform the following operations: receive information about the third terminal from the second terminal, where the third terminal is at least one terminal included in the second terminal; and/or from the second terminal.
  • the second device receives the information of the fourth terminal, where the fourth terminal is a terminal other than the third terminal among at least one terminal included in the second terminal.
  • the information of the second terminal includes at least one of the following: service identification information of the multicast service of the second terminal; location information of the second terminal; and channel state information of the second terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the first device is a third device
  • the processor 1601 is further configured to perform the following operations: send sixth indication information, where the sixth indication information is used to instruct the sixth terminal to reselect to the second device, and the sixth terminal is located in the second device.
  • the second device and the third device are within the coverage range, and receive multicast services and/or are interested in multicast services.
  • the sixth indication information may include any one or more of the following: identification information of the second device; configuration information of the multicast service of the second device; 2. Configuration information; the third device stops transmitting the instruction information of the multicast service.
  • the first device is a multicast control unit
  • the processor 1601 is further configured to perform the following operation: send a fifth request to the third device.
  • the first device is a multicast control unit
  • the processor 1601 is further configured to perform the following operation: receive third response information sent by the third device.
  • the first device is a third device
  • the processor 1601 is further configured to perform the following operation: send a sixth request to a terminal within the coverage of the third device.
  • the first device is a third device
  • the processor 1601 is further configured to perform the following operation: receive third information from terminals within the coverage of the third device.
  • the first device is a third device
  • the processor 1601 is further configured to perform the following operation: acquire information of the second terminal.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations: receiving A seventh request sent by the second device.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations: receiving The seventh indication information sent by the second device.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations: obtaining /Evaluate the fourth information of the third device.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations:
  • the second device sends an eighth request.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations: receiving The fifth information sent by the second device.
  • the processor 1601 is further configured to perform the following operation: acquire eighth indication information according to the fourth information and/or the fifth information.
  • the first device is a third device
  • the coverage of the third device includes the coverage of the second device
  • the frequency between the second device and the third device is the same
  • the processor 1601 is further configured to perform the following operations:
  • the second device sends eighth indication information.
  • the communication apparatus may be a second device, and the processor 1601 in the second device is configured to read the computer program code stored in the memory 1602, and perform the following operations:
  • the second device includes at least one cell and is used to transmit a multicast service, the first terminal is served by the at least one cell, and the first terminal includes at least one terminal that receives the multicast service, and/or at least one terminal interested in multicast services;
  • the first indication information includes first time information, where the first time information is used to indicate the time when the first device or the third device starts transmitting the multicast service, and/or the first time information is used to indicate the second device Time to stop transmitting multicast services.
  • the information of the first terminal includes at least one of the following: service identification information of the multicast service of the first terminal; location information of the first terminal; and channel state information of the first terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the processor 1601 is further configured to perform the following operations: send fifth indication information, where the fifth indication information is used to instruct the fifth terminal to reselect to the third device, and the fifth terminal is located in the coverage of the second device and the third device and receive multicast services and/or are interested in multicast services.
  • the fifth indication information may include any one or more of the following: identification information of the third device; configuration information of the multicast service of the third device; 1. Configuration information; the indication information that the second device stops transmitting the multicast service.
  • the processor 1601 is further configured to perform the following operation: receive the first request sent by the first device.
  • the processor 1601 is further configured to perform the following operation: send a first response message to the first device.
  • the processor 1601 is further configured to perform the following operation: send a second request to a terminal within the coverage of the second device.
  • the processor 1601 is further configured to perform the following operation: receive the first information sent by the terminal within the coverage of the second device.
  • the communication apparatus may be a second device, and the processor 1601 in the second device is configured to read the computer program code stored in the memory 1602, and perform the following operations:
  • the third indication information is used to instruct the first device or the third device to stop transmitting the multicast service, and/or instruct the second device to transmit the multicast service, and the third indication information is in the first device.
  • the second device After a device receives information from the second terminal, the second device includes at least one cell and is used to transmit multicast services, the third device is an access network device and is used to transmit multicast services, and the second terminal is used to transmit multicast services. is served by the third device, and the second terminal includes at least one terminal that receives the multicast service from the third device, and/or at least one terminal that is interested in the multicast service.
  • the third indication information includes second time information, where the second time information is used to indicate the time when the first device or the third device stops transmitting the multicast service, and/or the second time information is used to indicate the second device Time to start transmitting multicast services.
  • the first device is a third device
  • the information of the second terminal includes the information of the third terminal sent by the second terminal to the first device, and/or the information of the fourth terminal sent by the second device to the first device.
  • the third terminal is at least one terminal included in the second terminal
  • the fourth terminal is a terminal other than the third terminal among the at least one terminal included in the second terminal.
  • the information of the second terminal includes at least one of the following: service identification information of the multicast service of the second terminal; location information of the second terminal; and channel state information of the second terminal.
  • the coverage of the third device includes the coverage of the second device.
  • the processor 1601 is further configured to perform the following operation: receive the second confirmation information sent by the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operation: send a seventh request to the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operations: send seventh indication information to the third device .
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operations: receiving an eighth request sent by the third device .
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operation: send fifth information to the third device.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operations: receive an eighth indication sent by the third device information.
  • the coverage of the third device includes the coverage of the second device, the frequency between the second device and the third device is the same, and the processor 1601 is further configured to perform the following operations: send third confirmation information to the third device .
  • each operation may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 5 , FIG. 7 , FIG. 8 , FIG. 9 , and FIG. 12 .
  • An embodiment of the present application further provides a communication apparatus, which is configured to execute any method and function related to the first device or the second device in any of the foregoing embodiments.
  • the above-mentioned communication device may be an access network device, or may be a chip applied in the access network device, or other combined devices, components, etc. that can implement the functions of the above-mentioned device.
  • the receiving unit may be a receiver
  • the transmitting unit may be a transmitter
  • the receiving unit and the transmitting unit may also be an integrated transceiver, an antenna or a radio frequency circuit, etc.
  • the processing unit may be a processor, such as baseband chips, etc.
  • the communication device is a component having the above-mentioned equipment functions
  • the receiving unit and the transmitting unit may be an integrated radio frequency unit
  • the processing unit may be a processor.
  • the receiving unit may be an input interface of the chip system
  • the sending unit may be an output interface of the chip system
  • the processing unit may be a processor of the chip system, such as a central processing unit (CPU) .
  • CPU central processing unit
  • An embodiment of the present application further provides a communication system, where the system includes at least one first device and at least one second device involved in any of the foregoing embodiments.
  • the embodiments of the present application also provide a chip system, the chip system includes at least one processor, a memory and an interface circuit, the memory, the interface circuit and the at least one processor are interconnected by lines, and at least one memory stores a computer program; the computer program is processed When the controller is executed, the method flow shown in FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 , FIG. 9 and FIG. 12 is realized.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored.
  • a computer program is stored.
  • FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 , FIG. 9 , and FIG. The method flow shown in 12 is realized.
  • the embodiments of the present application further provide a computer program product, when the computer program product runs on the communication device, the method flows shown in FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 , FIG. 9 and FIG. 12 are implemented.
  • the second device and/or the third device respectively obtain the information of the terminals within the coverage area that are receiving the multicast service and/or interested in the multicast service, and then according to the instructions to the second device and/or whether the third device transmits the indication information of the multicast service, and cooperates to transmit the multicast service, which improves the transmission efficiency and spectrum utilization rate of the multicast service, saves communication resources and energy, and at the same time improves the communication quality of the multicast service and improves the user experience.
  • the aforementioned storage medium includes: ROM or random storage memory RAM, magnetic disk or optical disk and other mediums that can store computer program codes.

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Abstract

本申请实施例提供一种组播业务处理方法及装置。其中方法包括：第一设备从第二设备接收第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端和/或对组播业务感兴趣的至少一个终端；第一设备向第二设备发送第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。采用本申请实施例，通过多个设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。

Description

组播业务处理方法及装置
本申请要求于2020年09月08日提交中国专利局、申请号为202010939951.0、申请名称为“组播业务处理方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种组播业务处理方法及装置。
背景技术
随着无线通信技术的发展，为了提高网络覆盖率，提升网络容量，在终端(例如，用户设备(User Equipment，UE)、平板电脑(pad)等)位于至少两个小区的覆盖范围内时，可采用该至少两个小区所属的接入网设备为该终端提供服务。
组播业务(例如，多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)、多播广播业务(Multicast Broadcast Service，MBS)等)，主要适用于面向多个终端的业务，例如，视频会议、电视广播、视频点播、网上教育等。
单小区的点到多点(Single Cell Point to Multi-point，SC-PTM)是一种利用共享数据信息同时向多个终端传输相同业务的技术，且SC-PTM技术仅涉及单小区的组播业务传输，不涉及基站间进行组播业务的传输。多媒体广播多播单频网络(Multimedia Broadcast multicast service Single Frequency Network，MBSFN)可用于多个小区进行组播业务的传输。然而，MBSFN需要多个小区同步进行组播业务的传输，不存在多个小区或多个接入网设备同覆盖问题。因此，SC-PTM技术和MBSFN技术不适应上述的至少两个小区对应的至少两个接入网设备组成的通信网络中进行组播业务传输，如何在该通信网络下进行组播业务传输是本领域技术人员待解决的技术问题。
发明内容
本申请实施例公开了一种组播业务处理方法及装置，通过多个设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第一方面，本申请实施例公开了一种组播业务处理方法，包括：第一设备从第二设备接收第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端和/或对组播业务感兴趣的至少一个终端；第一设备向第二设备发送第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一终端的信息用于指示第一终端包括的至少一个终端的数量；第一设备向第二设备发送第一指示信息具体包括：若满足第一条件，第一设备向第二设备发送第一指示信息，第一条件包括至少一个终端的数量大于或等于第一阈值；和/或第一条件包 括，第一终端中被第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值；和/或第二设备包括至少一个接入网设备，第一条件包括至少一个接入网设备的数量大于或等于第三阈值。如此，在满足第一条件时向第二设备发送第一指示信息，可提高发送第一指示信息的准确率。
在一种可能的示例中，第一设备为组播控制单元，该方法还包括：第一设备向第三设备发送第二指示信息，第二指示信息用于指示第三设备传输组播业务，和/或第二设备停止传输组播业务。如此，第三设备可通过第二指示信息与第二设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第二方面，本申请实施例公开了另一种组播业务处理方法，包括：第一设备接收第二终端的信息，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端，第三设备为接入网设备，且用于传输组播业务；第一设备向第二设备发送第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第二设备包括至少一个小区，且用于传输组播业务。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第二终端的信息用于指示第二终端包括的至少一个终端的数量；第一设备向第二设备发送第三指示信息，具体包括：若满足第二条件，第一设备向第二设备发送第三指示信息，第二条件包括至少一个终端的数量小于或等于第四阈值；和/或第二条件包括，第二终端中被第二设备服务的至少一个终端的数量大于或等于第五阈值；和/或第二设备包括至少一个接入网设备，第二条件包括至少一个接入网设备的数量均小于或等于第六阈值。如此，在满足第二条件时向第二设备发送第三指示信息，可提高发送第三指示信息的准确率。
在一种可能的示例中，第一设备为组播控制单元，该方法还包括：第一设备向第三设备发送第四指示信息，第四指示信息用于指示第三设备停止传输组播业务，和/或第二设备传输组播业务。如此，第三设备可通过第四指示信息与第二设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一设备为第三设备，第一设备接收第二终端的信息包括：第一设备从第二终端接收第三终端的信息，第三终端为第二终端包括的至少一个终端；和/或第一设备从第二设备接收第四终端的信息，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。如此，通过不同的方式向第一设备发送第二终端的信息，可避免数据遗漏。
在一种可能的示例中，第一设备为第三设备，在第一设备向第二设备发送第三指示信息之后，该方法还包括：第一设备发送第六指示信息，第六指示信息用于指示第六终端重选至第二设备，第六终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。如此，第六终端基于第六指示信息重选至第二设备，可接收第二设备传输的组播业务，避免了组播业务中断，便于提高服务质量。
第三方面，本申请实施例公开了另一种组播业务处理方法，包括：第二设备向第一设备发送第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至 少一个终端；第二设备从第一设备接收第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，在第二设备从第一设备接收第一指示信息之后，该方法还包括：第二设备发送第五指示信息，第五指示信息用于指示第五终端重选至第三设备，第五终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。如此，第五终端基于第五指示信息重选至第三设备，可接收第三设备传输的组播业务，避免了组播业务中断，便于提高服务质量。
第四方面，本申请实施例公开了另一种组播业务处理方法，包括：第二设备从第一设备接收第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第三指示信息是在第一设备接收到第二终端的信息之后接收到的，第二设备包括至少一个小区，且用于传输组播业务，第三设备为接入网设备，且用于传输组播业务，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一设备为第三设备，第二终端的信息包括第二终端向第一设备发送的第三终端的信息，和/或，第二设备向第一设备发送的第四终端的信息，第三终端为第二终端包括的至少一个终端，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。如此，通过不同的方式向第一设备发送第二终端的信息，可避免数据遗漏。
第五方面，本申请实施例公开了一种通信装置，该通信装置为第一设备，包括：接收单元，用于从第二设备接收第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端；发送单元，用于向第二设备发送第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一终端的信息用于指示第一终端包括的至少一个终端的数量；发送单元具体用于，若满足第一条件，则向第二设备发送第一指示信息，第一条件包括至少一个终端的数量大于或等于第一阈值；和/或第一条件包括，位于第二设备包括的至少一个小区中每一小区的覆盖范围内的第一终端的数量均小于或等于第二阈值；和/或第一条件包括，第二设备包括的至少一个接入网设备的数量大于或等于第三阈值。如此，在满足第一条件时向第二设备发送第一指示信息，可提高发送第一指示信息的准确率。
在一种可能的示例中，第一设备为组播控制单元，发送单元还用于向第三设备发送第二指示信息，第二指示信息用于指示第三设备传输组播业务，和/或第二设备停止传输组播业务。如此，第三设备可通过第二指示信息与第二设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第六方面，本申请实施例公开了另一种通信装置，该通信装置为第一设备，包括：接收单元，用于接收第二终端的信息，第二终端被第三设备服务，且第二终端包括从第三设备接 收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端，第三设备为接入网设备，且用于传输组播业务；以及向第二设备发送第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第二设备包括至少一个小区，且用于传输组播业务。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第二终端的信息用于指示第二终端包括的至少一个终端的数量；发送单元具体用于若满足第二条件，向第二设备发送第三指示信息，第二条件包括至少一个终端的数量小于或等于第四阈值；和/或第二条件包括，位于第二设备包括的至少一个小区的覆盖范围内的第二终端的数量大于或等于第五阈值；和/或第二条件包括，第二设备包括的至少一个接入网设备的数量小于或等于第六阈值。如此，在满足第二条件时向第二设备发送第三指示信息，可提高发送第三指示信息的准确率。
在一种可能的示例中，第一设备为组播控制单元，发送单元还用于向第三设备发送第四指示信息，第四指示信息用于指示第三设备停止传输组播业务，和/或第二设备传输组播业务。如此，第三设备可通过第四指示信息与第二设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一设备为第三设备，接收单元具体用于从第二终端接收第三终端的信息，第三终端为第二终端包括的至少一个终端；和/或从第二设备接收第四终端的信息，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。如此，通过不同的方式向第一设备发送第二终端的信息，可避免数据遗漏。
在一种可能的示例中，第一设备为第三设备，发送单元还用于发送第六指示信息，第六指示信息用于指示第六终端重选至第二设备，第六终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。如此，第六终端基于第六指示信息重选至第二设备，可接收第二设备传输的组播业务，避免了组播业务中断，便于提高服务质量。
第七方面，本申请实施例公开了又一种通信装置，该通信装置为第二设备，包括：发送单元，用于向第一设备发送第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端；接收单元用于从第一设备接收第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，发送单元还用于发送第五指示信息，第五指示信息用于指示第五终端重选至第三设备，第五终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。如此，第五终端基于第五指示信息重选至第三设备，可接收第三设备传输的组播业务，避免了组播业务中断，便于提高服务质量。
第八方面，本申请实施例公开了又一种通信装置，该通信装置为第二设备，包括：接收单元，用于从第一设备接收第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第三指示信息是在第一设备接收到第二终端的信息之后接收到的，第二设备包括至少一个小区，且用于传输组播业务，第三设备为接入网设备，且用于传输组播业务，第二终端被第三设备服务，且第二终端包括从第三设备 接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
在一种可能的示例中，第一设备为第三设备，第二终端的信息包括第二终端向第一设备发送的第三终端的信息，和/或，第二设备向第一设备发送的第四终端的信息，第三终端为第二终端包括的至少一个终端，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。如此，通过不同的方式向第一设备发送第二终端的信息，可避免数据遗漏。
结合第一方面，或者第三方面，或者第五方面，或者第七方面，或者任意一种可能的示例，在一种可能的示例中，第一指示信息包括第一时间信息，第一时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。如此，通过第一时间信息指示第三设备开始传输组播业务的时间，和/或第二设备停止传输业务的时间，可避免组播业务中断，便于提高服务质量。
结合第一方面，或者第三方面，或者第五方面，或者第七方面，或者任意一种可能的示例，在一种可能的示例中，第一终端的信息包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。如此，通过以上不同的第一终端的信息可获取不同限定条件下的第一终端的数量，可便于提高组播业务的传输效率和频谱利用率，节省通信资源和能源，保证组播服务质量，提高用户体验。
结合第一方面，或者第二方面，或者第三方面，或者第四方面，或者第五方面，或者第六方面，或者第七方面，或者任意一种可能的示例，在一种可能的示例中，第三设备的覆盖范围包括第二设备的覆盖范围。如此，在不同情况下，第二设备和第三设备可以分别或者共同为，同一个终端提供无线通信服务，提高了接入网设备及业务部署灵活性，提高了频谱利用率，提高网络覆盖率，提升网络容量。
结合第二方面，或者第四方面，或者第六方面，或者任意一种可能的示例，在一种可能的示例中，第三指示信息包括第二时间信息，第二时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息用于指示第二设备开始传输组播业务的时间。如此，通过第三时间信息指示第二设备开始传输组播业务的时间，和/或第三设备停止传输组播业务的时间，可避免组播业务中断，便于提高服务质量。
结合第二方面，或者第四方面，或者第六方面，或者任意一种可能的示例，在一种可能的示例中，第二终端的信息包括以下中的至少一项：第二终端的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息。如此，通过以上不同的第二终端的信息可获取不同限定条件下的第二终端的数量，可便于提高组播业务的传输效率和频谱利用率，节省通信资源和能源，保证组播服务质量，提高用户体验。
结合第二方面，或者第六方面，或者任意一种可能的示例，在一种可能的示例中，第六指示信息可以包括以下任意一项或多项：第二设备的标识信息；第二设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第二配置信息；第三设备停止传输组播业务的指示信息。如此，第六终端可基于以上不同的第六指示信息重选至第二设备，可提高重选的准确率。
结合第三方面，或者第七方面，或者任意一种可能的示例，在一种可能的示例中，第五指示信息可以包括以下任意一项或多项：第三设备的标识信息；第三设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第一配置信息；第二设备停止传输组播业务的指示信息。如此，第五终端可基于以上不同的第五指示信息重选至第三设备，可提高重选的准 确率。
第九方面，本申请提供了一种通信装置，包括处理器，处理器与存储器耦合，其中，存储器用于存储一个或多个程序，程序被处理器执行以实现上述任一方面或可能的示例的方法。
第十方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述任一方面或可能的示例的方法。
第十一方面，本申请提供了一种计算机程序产品，计算机程序产品用于存储计算机程序，当计算机程序在计算机上运行时，使得计算机执行上述任一方面的方法。
第十二方面，本申请提供了一种芯片，包括处理器，用于从存储器中调用并运行存储器中存储的指令，使得安装有芯片的终端设备执行上述任一方面或可能的示例的方法。
第十三方面，本申请提供了另一种芯片，该芯片可以为第一设备或第二设备内的芯片，该芯片包括：输入接口、输出接口和处理电路，输入接口、输出接口与电路之间通过内部连接通路相连，处理电路用于执行上述任一方面或可能的示例的方法。
第十四方面，本申请提供了另一种芯片，包括：输入接口、输出接口和处理器，可选的，还包括存储器，输入接口、输出接口、处理器以及存储器之间通过内部连接通路相连，处理器用于执行存储器中的代码，当代码被执行时，处理器用于执行上述任一方面或可能的示例中的方法。
第十五方面，本申请实施例提供了一种通信系统，包括上述任一方面或可能的示例中的第一设备和第二设备。
通过实施本申请实施例，第二设备和/或第三设备分别获取其覆盖范围内正在接收组播业务和/或对组播业务感兴趣的终端的信息，然后依据指示第二设备和/或第三设备是否传输组播业务的指示信息，协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
附图说明
以下对本申请实施例用到的附图进行介绍。
图1是本申请实施例提供的一种通信系统的结构示意图；
图2是本申请实施例提供的另一种通信系统的结构示意图；
图3是本申请实施例提供的一种SC-PTM传输方式的示意图；
图4是本申请实施例提供的一种MBMS业务计数的流程示意图；
图5是本申请实施例提供的第一种组播业务处理方法的流程示意图；
图6是本申请实施例提供的第二种组播业务处理方法的流程示意图；
图7是本申请实施例提供的第三种组播业务处理方法的流程示意图；
图8是本申请实施例提供的第四种组播业务处理方法的流程示意图；
图9是本申请实施例提供的第五种组播业务处理方法的流程示意图；
图10是本申请实施例提供的一种ABS子帧传输的场景示意图；
图11是本申请实施例提供的一种时频资源划分的场景示意图；
图12是本申请实施例提供的第六种组播业务处理方法的流程示意图；
图13是本申请实施例提供的第七种组播业务处理方法的流程示意图；
图14是本申请实施例提供的第八种组播业务处理方法的流程示意图；
图15是本申请实施例提供的一种通信装置的结构示意图；
图16是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面结合本申请实施例中的附图对本申请实施例进行描述。
请参见图1，图1是本申请实施例提供的一种通信系统的结构示意图，该通信系统包括至少一个终端(例如，终端101、终端102、终端103、终端104、终端105)、至少一个接入网设备(例如，接入网设备111、接入网设备112、接入网设备121、接入网设备122)。
本申请实施例中的通信系统可以包括第二代移动通信技术对应的全球移动通讯(Global System for Mobile Communications，GSM)系统、介于第二代移动通信技术和第三代移动通信技术之间的通用分组无线业务(General Packet Radio Service，GPRS)、第三代移动通信技术(The3rd Generation Telecommunication，3G)对应的码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统和通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、第四代移动通信技术对应的长期演进(Long Term Evolution，LTE)系统、第五代移动通信技术对应的新空口技术(New Radio，NR)系统等目前的通信系统，以及，应用于未来的通信系统。
本申请实施例中的终端可以是一种向用户提供语音或者数据连通性的设备，终端可以称为用户设备(User Equipment，UE)、移动台(mobile station)、用户单元(subscriber unit)、站台(station)、终端设备(Terminal Equipment，TE)等。终端可以为蜂窝电话(cellular phone)、个人数字助理(Personal Digital Assistant，PDA)、无线调制解调器(modem)、手持设备(hand held)、膝上型电脑(laptop computer)、无绳电话(cordless phone)、无线本地环路(Wireless Local Loop，WLL)台、手机(mobile phone)、平板电脑(pad)等。随着无线通信技术的发展，可以接入无线通信网络、可以与无线网络侧进行通信，或者通过无线网络与其它物体进行通信的设备都可以是本申请实施例中的终端。譬如，智能交通中的终端和汽车、智能家居中的家用设备、智能电网中的电力抄表仪器、电压监测仪器、环境监测仪器、智能安全网络中的视频监控仪器、收款机等等。终端可以是静态固定的，也可以是移动的。在具体实现中，作为一种实施例，如图1所示，终端为手机。
本申请实施例中的接入网设备可以是无线通信的基站(Base Station，BS)或基站控制器等。该接入网设备是一种部署在无线接入网中用以为终端提供无线通信功能的装置，其主要功能有：进行无线资源的管理、互联网协议(Internet Protocol，IP)头的压缩及用户数据流的加密、用户设备附着时进行移动管理实体(Mobile Management Entity，MME)的选择、路由用户面数据至服务网关(Service Gateway，SGW)、寻呼消息的组织和发送、广播消息的组织和发送、以移动性或调度为目的的测量及测量报告的配置等等。在采用不同的无线接入技术的系统中，具备基站功能的接入网设备的名称可能会有所不同，例如，在第三代移动通信技术对应的通信系统中，称为节点B(Node B)；在LTE系统中，称为演进的节点B(evolved Node B，eNodeB或eNB)；在NR系统中，称为下一代基站(next generation Node Base Station，gNB)等等。随着通信技术的演进，基站这一名称可能会变化。基站可以包括各种形式的宏基站、微基站、毫微微基站、家庭基站、中继节点(Access Point，AP)、接入点等等。为方便描述，本申请实施例中，上述为终端提供无线通信功能的装置统称为接入网设备。在具体实现中，作为一种实施例，如图1所示，接入网设备为基站。
在本申请实施例中，接入网设备包括至少一个小区，可以理解为，接入网设备下存在一个或多个小区。将小区为终端提供服务的区域可称为该小区的覆盖范围，将接入网设备下所有小区的覆盖范围对应的区域可称为该接入网设备的覆盖范围，可以理解为，接入网设备的覆盖范围为接入网设备为终端提供服务的区域。在第一小区的覆盖范围内包括一个或多个第二小区的覆盖范围时，将第一小区对应的逻辑实体称为第三设备，将第二小区对应的逻辑实体称为第二设备。第三设备可以为接入网设备、基站、宏基站、大功率高塔(High Power High Tower，HPHT)等，第二设备可以为接入网设备、基站、微基站、毫微微基站、家庭基站和中继节点等。第二设备与第三设备相比，具有覆盖范围小，发射功率低的特点。也可以理解为，第三设备与第二设备相比，具有覆盖范围广，发射功率大的特点。可选的，第三设备的小区半径为数十千米。本申请对第二设备和第三设备的形态不做限定，需要说明的是，第二设备和第三设备的数量可以为一个或多个。示例性的，本申请实施例以一个第三设备和一个或多个第二设备进行说明，以第三设备为接入网设备进行说明。
可以理解，第二设备和第三设备均包括至少一个小区，且第二设备和第三设备之间的至少一个小区存在相同的覆盖范围。在一种可能的示例中，第三设备的覆盖范围包括第二设备的覆盖范围。也就是说，第三设备和第二设备之间覆盖范围相同，或者第三设备比第二设备的覆盖范围大。在位于第二设备下的小区覆盖范围内的终端，可被该小区服务，也可被第三设备中与该小区同覆盖范围的小区服务，从而第三设备和第二设备可以为同一个终端提供无线通信功能。在不同情况下，第二设备和第三设备可以分别或者共同为，同一个终端提供无线通信服务，提高了接入网设备及业务部署灵活性，提高了频谱利用率，提高网络覆盖率，提升网络容量。
示例性的，如图1所示，接入网设备111下包括的小区的覆盖范围为区域D1对应的位置，接入网设备111下也可以包括的另一小区的覆盖范围为区域D2对应的位置，且区域D1包括区域D3和区域D4。其中，区域D3对应的位置为接入网设备121下包括的多个小区的覆盖范围，区域D4对应的位置为接入网122下包括的多个小区的覆盖范围。接入网设备111的覆盖范围大于接入网设备121和接入网设备122中每一接入网设备的覆盖范围，且接入网设备111、接入网设备121和接入网设备122中每一接入网设备之间的小区存在相同的覆盖范围。若接入网设备111为第三设备，接入网设备121和接入网设备122均为第二设备，则位于区域D1和区域D3的范围内的终端101和终端102，可通过接入网设备121被区域D3对应的至少一个小区服务，也可通过接入网设备111被区域D1对应的小区服务。位于区域D1和区域D4的范围内的终端103和终端104，可通过接入网设备122被区域D4对应的至少一个小区服务，也可通过接入网设备111被区域D1对应的小区服务。
接入网设备和终端可以部署在陆地上，例如，室内或室外、手持或车载等。接入网设备和终端也可以部署在水面上，还可以部署在空中的飞机、气球和卫星上。本申请的实施例对接入网设备和终端的应用场景不做限定。
接入网设备和终端之间，接入网设备和接入网设备之间，以及终端和终端之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过免授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和免授权频谱进行通信。本申请的实施例对接入网设备和终端之间使用的频谱资源不做限定。
在进行本申请实施例的说明时，首先对下面描述中所用到的一些概念进行解释说明。
(1)无线资源控制(Radio Resource Control，RRC)连接态。
RRC连接态(RRC connected，在本申请实施例中简称为连接态)是指终端与接入网设备 之间建立RRC连接，终端可以收发专用数据，根据终端的活动性，通过非连续性接收(Discontinuous Reception，DRX)可节省空口资源以及节省终端的用电功耗。
(2)非RRC连接态。
非RRC连接态(在本申请实施例中简称为非连接态)是指终端与接入网设备之间的RRC连接状态不是连接态的状态。在采用不同的无线接入技术的系统中，非连接态对应的RRC连接状态可能会有所不同。例如，在LTE系统中，非连接态对应的连接状态包括RRC空闲态(RRC idle，在本申请实施例中简称为空闲态)；在NR系统中，非连接态对应的连接状态包括空闲态和RRC非激活态(RRC inactive，在本申请实施例中简称为非激活态)。
其中，空闲态是指终端和接入网设备之间没有进行RRC连接，终端需要定期发起位置更新、小区选择重选流程和接收寻呼等。
非激活态是为了实现让终端快速进入连接态发送数据，同时减少移动过程及状态转移过程中所带来的信令开销，在NR系统中引入的一个新的RRC状态。在非激活态，终端在一定的无线接入网(Radio Access Network，RAN)通知区域(RAN Notification Area，RNA)范围内移动不需要通知接入网设备，终端会保留一定配置，如果终端有数据需要发送，则终端需要迁移到连接态，恢复保留的配置进行数据传输。
(3)组播业务。
组播业务是指接入网设备为多个终端同时提供无线通信功能服务的业务，可称为多播业务或广播业务，主要适用于面向多个终端的业务，例如，视频会议、电视广播、视频点播、网上教育等。
示例性的，如图1所示，接入网设备111下包括的小区的覆盖范围为区域D1对应的位置，接入网设备111下也可以包括的另一小区的覆盖范围为区域D2对应的位置，且区域D1包括区域D3和区域D4。其中，区域D3对应的位置为接入网设备121下包括的多个小区的覆盖范围，区域D4对应的位置为接入网122下包括的多个小区的覆盖范围。终端101和终端102位于区域D3的范围内，终端103和终端104位于区域D4的范围内，终端205没有位于区域D1、区域D2、区域D3、区域D4的范围内，则区域D3对应的至少一个小区，可为终端101和终端102提供或同时提供组播业务服务，区域D4对应的至少一个小区，可为终端103和终端104提供或同时提供组播业务服务。且终端101、终端102、终端103和终端104位于区域D1的范围内，则区域D1对应的至少一个小区，可为终端101、终端102、终端103和终端104提供或同时提供组播业务服务。
组播业务可以通过接入网设备为终端建立专用的承载，以单播(point-to-point，PTP)的传输方式(本申请中可称为单播PTP方式，可简称为PTP)由接入网设备发送给终端，也可以通过建立组播业务的承载，以多播(point-to-multipoint，PTM)的传输方式(本申请中可称为多播PTM方式，可简称为PTM)由接入网设备发送给终端。当有大量的终端需要接收某一组播业务时，以单播PTP方式发送此业务需要为大量的终端中每一终端建立专用的承载，可以通过每一终端的专用的承载向该终端发送该组播业务的数据包，此种传输方式资源消耗较大。如果是以多播PTM方式，则可以通过组播业务的承载传输该组播业务的数据包，所有对该组播业务感兴趣的终端都可以通过这个承载接收该组播业务，节约空口资源，提高频谱利用率，提高了传输效率。
接入网设备传输组播业务，表示该接入网设备可为至少一个终端提供或同时提供组播业务服务，传输方式可以为多播PTM方式。接入网设备停止传输组播业务，可以表示该接入网设备不再传输所有的组播业务，或者表示该接入网设备以单播PTP方式为终端提供组播业务 服务。在本申请实施例中，接入网设备停止传输组播业务以接入网设备不再传输所有的组播业务进行举例说明。
在采用不同的无线接入技术的系统中，组播业务的名称可能会有所不同，例如，在LTE系统中，称为多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)；在NR系统中，称为多播广播业务(Multicast Broadcast Service，MBS)等。
在本申请实施例中，第二设备和第三设备均可用于传输组播业务。
(4)MBMS业务。
MBMS业务是一般通过广播的传输方式提供的业务。MBMS业务可包括单小区的点到多点(Single Cell Point to Multi-point，SC-PTM)技术和多媒体广播多播单频网络(Multimedia Broadcast multicast service Single Frequency Network，MBSFN)两种传输方式。
其中，SC-PTM传输方式是一种利用共享数据信息同时向多个终端传输相同业务的技术，接收同一业务的一组终端使用相同的下行配置来进行业务接收，不必为每个终端建立自己的通信链路。如图3所示，SC-PTM有一个单小区组播控制信道(Single Cell Multicast Control Channel，SC-MCCH)和一个单小区组播传输信道(Single Cell Multicast Transport Channel，SC-MTCH)，这两个下行逻辑信道(Downlink Logic channels)都映射到下行传输信道(Downlink Transport channels)中的下行共享信道(Downlink Shared Channel，DL-SCH)上。其中，SC-MCCH上包含业务标识和接收组播业务逻辑信道(Multicast Traffic Channel，MTCH)的配置信息，SC-MTCH用来传输业务数据。SC-MCCH上承载的组播控制信息以下简称为SC-MCCH信息。SC-MCCH信息以周期进行发送，该周期包括重复周期(Repetition Period，RP)和修改周期(Modification Period，MP)，每个重复周期发送一个SC-MCCH信息，一个修改周期中包含若干个重复周期且修改周期内SC-MCCH信息的内容不变。
此外，如图3所示，下行逻辑信道中的广播控制信道(Broadcast Control Channel，BCCH)、通用控制信道(Common Control Channel，CCCH)、专用控制信道(Dedicated Control Channel，DCCH)、专用业务信道(Dedicated Traffic Channel，DTCH)也映射到DL-SCH上。BCCH还映射到广播信道(Broadcast Channel，BCH)。下行逻辑信道中的寻呼控制信道(Paging Control Channel，PCCH)映射到下行传输信道中寻呼信道(Paging Channel，PCH)。组播控制信道(Multicast Control Channel，MCCH)和组播业务信道(Multicast Traffic Channel，MTCH)映射到组播信道(Multicast Channel，MCH)。
MBSFN传输方式涉及的是多个小区的同步传输。在MBSFN技术中，包括多小区/多播协作实体(Multi-Cell/multicast Coordination Entity，MCE)。MCE是一个逻辑实体，可以作为一个单独的网元存在，也可以是其他网元的一部分；同一个MCE是指逻辑上同一个MCE，可以理解为MCE可以位于多个网元中，但具有相同的标识。当进行多小区传输时，MCE通过M2接口连接到同一MBSFN区域内的一个或多个eNB，主要用于对MBSFN区域内所有eNB的无线资源进行分配、管理以及控制。MBSFN传输方式涉及的是多个小区间的同步传输，可以节约频率资源，提高了频谱利用率。在LTE系统中，每个小区可包括至少一个MBMS子帧，用于传输MBMS业务，终端可以通过接收MBMS子帧来接收MBMS数据，且终端可以在空闲态或者连接态接收MBMS子帧，LTE系统中的接入网设备(即eNB)可不必知道有哪些终端在接收MBMS业务。
(5)MBMS业务中的计数功能。
MBMS计数功能允许MCE请求接入网设备(即eNB)对一个或多个MBSFN服务的区域进行计数和报告，以确定接收MBMS业务或对MBMS业务感兴趣的(连接态的)终端的 数量。请参照图4，图4为完整的MBMS业务计数的流程图。图4中，eNB的覆盖范围内的终端包括终端1、……、终端N。可选的，N为大于或等于0的整数。MCE和eNB之间基于M2接口，eNB与终端之间基于Uu接口，该流程包括以下步骤S401～S405，其中：
S401：MCE向eNB发送组播业务计数请求消息(MBMS SERVICE COUNTING REQUEST message)。
S402：eNB向MCE发送组播业务计数响应消息(MBMS SERVICE COUNTING RESPONSE message)。
其中，MBMS SERVICE COUNTING RESPONSE用于响应接收到来自于MCE的MBMS SERVICE COUNTING REQUEST，可以理解为该eNB已接收到该消息。需要说明的是，若eNB不能正确地执行步骤S401对应的计数操作，则eNB可向MCE发送MBMS业务计数失败消息(MBMS SERVICE COUNTING failure message)。
S403：eNB向eNB的覆盖范围内的终端发送组播计数请求消息(MBMSCountingRequest message)。
其中，该MBMSCountingRequest message由eNB在MBSFN area所对应的组播控制信道MCCH承载，发送给eNB的覆盖范围内的终端。eNB的覆盖范围内的终端通过接收承载在MCCH上的MBMSCountingRequest message，获知eNB正在统计(某些)MBMS业务的用户。
S404：对MBMS业务感兴趣和/或正在接收MBMS业务的终端向eNB发送组播计数响应消息(MBMSCountingResponse message)。
S405：eNB收集终端反馈的信息。
步骤S406：eNB向MCE发送组播业务计数结果报告消息(MBMS Service Counting Results Report message)。
需要说明的是，对MBMS业务不感兴趣的终端和/或没有接收MBMS业务的终端可能不会发送MBMSCountingResponse message。另外一种可能的实施方式，对MBMS业务不感兴趣的终端和/或没有接收MBMS业务的终端发送MBMSCountingResponse message，此时的MBMSCountingResponse message用于指示该终端对MBMS业务不感兴趣的终端和/或没有接收MBMS业务。考虑到eNB下相应终端的个数可能是大量的，可选的，eNB将在一段时间内收集相应的反馈信息。该时间可以是一个MCCH修改周期，如5.12秒或10.24秒。可以理解为在该MCCH修改周期到达时，eNB确定已完成终端反馈信息的收集。该时间也可以一个预定义的定值，或者可以是eNB或MCE根据辅助信息(比如，以往经验、信道质量、位置信息、MBMS业务的数量、传输情况等)确定的时间等，在此不做限定。
SC-PTM仅涉及单小区的组播业务传输，不涉及多个小区间进行组播业务的传输，且不涉及多个小区和/或多个接入网设备之间，根据负载情况对应的协商信息进行组播业务传输的应用场景。然而，第二设备和第三设备可能包括多个小区。因此，SC-PTM技术不适应在上述的第三设备和至少一个第二设备组成的通信网络中进行组播业务传输。
采用MBSFN方式传输MBMS业务，需要多小区同步进行MBMS业务的传输，不存在多小区或多接入网设备同覆盖问题。因此，MBSFN技术也不适应在上述的第三设备和至少一个第二设备组成的通信网络中进行组播业务传输。
基于此，本申请实施例提出一种组播业务处理方法，通过多个设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提升用户体验。
该方法可应用于第三设备和至少一个第二设备(例如，图1中的接入网设备111、接入 网设备121、接入网设备122和接入网设备123)组成的通信网络，也可应用于第三设备、至少一个第二设备和组播控制单元(例如，图2中的接入网设备211、接入网设备221、接入网设备222、接入网设备223和组播控制单元230)组成的通信网络。该组播控制单元可用于控制组播业务的传输，可选的，包括通信网络中的接入网设备是否传输组播业务，组播业务的传输方式是以单播PTP方式和/或多播PTM方式进行传输，传输的组播业务的业务标识等。
需要说明的是，组播控制单元可以作为单独的逻辑单元/实体单元，或者可以作为第三设备的一部分。当组播控制单元为单独的逻辑单元/实体单元时，该组播控制单元与通信网络中的第二设备和第三设备连接，可分别向第二设备和第三设备发送信息当组播控制单元为第三设备的一部分时，该组播控制单元控制第三设备开始传输或停止传输组播业务，可向第二设备发送信息。组播控制单元向第二设备或第三设备发送的信息，例如，组播业务的指示信息、请求信息等，在此不做限定。可选的，组播控制单元为Multicast Control Function，可简称为MCF。
在本申请实施例中，第二设备可以为接入网设备，第二设备下存在至少一个小区，且可用于传输组播业务。第三设备可以为接入网设备，且可用于传输组播业务。需要说明的是，第二设备和第三设备协同传输组播业务，可以理解为，在第三设备开启组播业务服务时，第二设备可关闭组播业务服务。在第三设备关闭组播业务服务时，第二设备可开启组播业务服务。也可以理解为，在第三设备传输第一组播业务时，第二设备可传输除了第一组播业务之外的组播业务和/或停止传输该第一组播业务。在第三设备停止传输第一组播业务时，可由第二设备传输该第一组播业务。本申请对于第一组播业务不做限定，可以是任一组播业务。
请参照图5，图5为本申请实施例提出的第一种组播业务处理方法的流程示意图。该方法应用于如图2所示的通信网络。在实施该方法之前，组播控制单元确定第三设备不进行组播业务的传输。可以理解为，第三设备有能力或者可以进行传输的组播业务还未开始传输；和/或第三设备有能力或者可以进行传输的组播业务已经开始，但是第三设备没有进行传输。若组播控制单元确定第三设备进行组播业务的传输，则请参照图7。如图5所示，其中：
可选的，S501：组播控制单元向第二设备发送第一请求。
在本申请实施例中，第一请求用于获取第一终端的信息。第一终端被第二设备下存在的至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。其中，终端对组播业务感兴趣包括终端希望接收未开始传输的组播业务，或者终端希望接收正在传输的组播业务但是由于一些原因而没有接收到组播业务等情况。第一终端被第二设备下存在的至少一个小区服务，可以理解为第一终端的位置位于第二设备的小区的覆盖范围，也可以理解为第一终端被第二设备包括的至少一个小区服务，也可以说第二设备的小区可以是第一终端驻留的小区和/或第一终端接入的小区和/或第一终端待接入的小区，和/或第一终端能够接收业务的小区。在第三设备的覆盖范围包括第二设备的覆盖范围时，第一终端的位置可位于第三设备的小区的覆盖范围内。同理，第一终端也可以被第三设备服务或者被第三设备的小区服务，也可以说该第三设备的小区可以是第一终端驻留的小区和/或第一终端接入的小区，和/或第一终端待接入的小区，和/或第一终端能够接收业务的小区。
示例性的，如图2所示，若第二设备为接入网设备222，且终端203和终端204接收接入网设备222传输的组播业务；终端206对接入网设备222正在传输、或者还未开始传输、或者以单播PTP方式传输的组播业务感兴趣；终端207当前没有接收组播业务，也不对组播业务感兴趣，则第一终端可以是终端203、终端204和终端206。
本申请对于第一终端的信息不做限定，在一种可能的示例中，第一终端的信息用于指示第一终端包括的至少一个终端的数量。第一终端的信息可以包括但是不限定于以下信息：第二设备的覆盖范围内，正在接收组播业务和/或对正在传输或即将传输的组播业务感兴趣的终端的数量；第一终端包括的至少一个终端的数量；第一终端的标识信息；第一终端感兴趣和/或正在接收的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息；第一终端的测量结果；第一终端的能力信息等。其中，第一终端感兴趣和/或正在接收的组播业务的业务标识信息，也可以是第一终端是否对于某一(些)组播业务感兴趣的信息。上述的第一终端的信息可采用比特图(bitmap)或其它方式，对终端是否正在接收某一(些)组播业务和/或对某一(些)组播业务感兴趣进行描述。其中，比特图中的1可表示该终端对某一(些)组播业务感兴趣，或正在接收某一(些)组播业务，比特图中的0可表示该终端不对某一(些)组播业务感兴趣和/或未接收任一组播业务。
本申请各实施例中，组播业务的业务标识信息可以用于标识该组播业务。以第一组播业务进行举例说明，上述组播业务的业务标识信息可以是第一组播业务对应的应用的标识信息，也可以是临时移动组标识(temporary mobile group identity，TMGI)、服务标识(service ID)，或者第一组播业务所对应的用于调度一组终端接收第一组播业务的无线网络标识(例如，全球移动通信系统中的无线网络临时标识符(Global System for Mobile communications-Radio Network Temporary Identity，G-RNTI))，或者在传输第一组播业务的协议数据单元(Protocol Data Unit，PDU)会话中用于标识PDU会话的标识信息，或者在传输第一组播业务的组播会话中用于标识组播会话的标识信息(例如，组播业务为MBS时，组播会话的标识信息可以是MBS session的标识信息)等。组播业务的业务标识信息可以理解为组播业务本身的标识信息，也可以理解为传输组播业务的过程中所携带的标识信息，或者用于区分其它的业务(或组播业务)所重新命名的标识信息。
位置信息可以是用卫星坐标来体现第一终端的水平方向和垂直方向的经纬度信息，也可以利用3GPP定位技术指示的位置信息，还可以是为第一终端所属的小区的位置信息，或者可以是第一终端所属的跟踪区域(tracking area，TA)信息，或者第一终端所属的接入网设备或第二设备的设备信息等。
信道状态信息可以包括信噪比、信号质量、信号强度等。测量结果可以理解为终端根据测量配置完成测量并生成的RRC层结果，也可以是物理层/层一(layer1)的测量结果，还可以是基于波束(beam)的测量结果。
终端的标识信息用于标识该终端。以第一终端进行举例说明，第一终端的标识信息用于标识该第一终端，可以是第一终端的标识，例如，媒体存取控制位址(Media Access Control Address，MAC)地址、国际移动设备识别码(International Mobile Equipment Identity，IMEI)、国际移动用户识别码(International Mobile Subscriber Identity，IMSI)、网际互连协议(Internet Protocol)地址等。第一终端的标识信息也可以是第一终端对应的组播业务的用户标识，例如，用户终端标识(User Equipment Identity，UE ID)等。
能力信息用于描述第一终端是否可以支持组播业务的接收，是否可以接收多个组播业务，能够以何种方式(比如，进入连接态和/或以任何RRC状态)接收组播业务，第一终端的射频能力，基带能力，是否可以接入/驻留于第二设备或/和第三设备等。
对于以上终端的信息的类型以及作用，此处均不做限定。
可以理解，依据终端的业务标识信息，可统计对组播业务感兴趣和/或正在接收组播业务的第一终端的数量；也可以是对不同的组播业务感兴趣和/或正在接收的不同的组播业务的第 一终端的数量，不同的组播业务可以是第一请求中所要求统计的组播业务，也可以终端根据自己的感兴趣和/或正在接收的组播业务上报的，也可以是第二设备或者第三设备可提供的组播业务。依据终端的业务标识信息，还可以统计第二设备的覆盖范围内/被第二设备的小区服务/从第二设备的小区服务接收组播业务的对某一(些)组播业务感兴趣和/或正在接收组播业务的第一终端的数量。
依据测量结果和/或信道状态信息可获取终端的信道质量情况，信道质量情况可以用于判断该终端是否可通过PTM和/或PTP接收组播业务数据，或者说判断该终端可以通过何种传输方式(例如：PTM、PTP、PTM和PTP同时传输)接收组播业务数据。通过以上不同的第一终端的信息可获取不同限定条件下的第一终端的数量，可便于提高组播业务的传输效率和频谱利用率，节省通信资源和能源，保证组播服务质量，提升用户体验。对于以上终端的信息的类型以及作用，此处均不做限定。
本申请对于第一请求的内容不做限定，可以指定获取第一终端的信息的类型，例如，第一终端的信息的类型为不同组播业务的业务标识对应的终端的数量，小区或第二设备的覆盖范围内的第一终端的数量，或第一终端的标识信息等。第一终端的请求中也可以指定获取组播业务的统计列表，该统计列表可用于获取第一终端的信息，该统计列表可以通过前述的比特图的形式来获取对正在接收/正在传输/对正在传输或即将开始传输的组播业务感兴趣的终端的数量，以及不同组播业务的业务标识对应的终端的数量等。
本申请对于步骤S501的执行条件不做限定，可以是组播控制单元每隔一段时间，例如，第五时间，向第二设备发送第一请求。该第五时间可以是一个固定的时间，对于所有设备和所有组播业务均相同；也可以是每个组播业务对应的一个不同的时间；也可以是接入网设备或组播控制单元确定的一个动态的时间，也就是说该时间不是某一定值，该时间的确定方式可以是接入网设备或组播控制单元根据以往经验(例如，以往一般是超过多少终端时接收/停止组播业务等)、信道质量情况、网络负载情况等确定的，在此不做限定。另外一种可能的实施方式，第三设备和/或第二设备传输的组播业务在满足第一约束条件时向组播控制单元进行上报，从而执行步骤S501。第一约束条件包括但不限定于以下信息：新的组播业务即将开始传输或者已经开始传输；之前接收的组播业务结束或者被停止传输；第二设备传输的组播业务的数量超过一个阈值等。此处阈值可以是第七阈值，该第七阈值可以是第二设备同时传输组播业务的处理上限，或第二设备所支持的接收组播业务的终端的数目的上限；也可以第八阈值，该第八阈值可以是组播控制单元或第三设备配置的第八阈值，或第二设备所支持的正在接收组播业务和/或对组播业务感兴趣的终端的数目的上限，或第二设备所支持正在接收某一个组播业务和/或对某一个组播业务感兴趣的终端的数目的上限。该第八阈值也可以是一系列的阈值，每一个子阈值对应于一个网络中存在的组播业务。示例性的，当第二设备服务的正在接收组播业务和/或对组播业务感兴趣的终端的数目超过该组播业务的子阈值时，第二设备向组播控制单元进行上报，从而执行步骤S501。
可选的，S502：第二设备向组播控制单元发送第一响应消息。
其中，第一响应消息可用于响应接收到来自于组播控制单元的第一请求，或者，指示第二设备可执行该第一请求对应的操作。组播控制单元可根据第一响应消息，确定第二设备已接收到第一请求。若第二设备不能正确地执行步骤S501的请求，则第二设备可向组播控制单元发送用于指示第一请求响应失败的指示信息。
可选的，S503：第二设备向第二设备的覆盖范围内的终端发送第二请求。
如图5所示，位于第二设备的覆盖范围内的终端包括终端p 1、……、终端p s。可选的，S 为大于或等于0的整数。在本申请实施例中，第二请求可用于获取第二设备的覆盖范围内正在接收组播业务，和/或对组播业务感兴趣的终端的信息。第二请求也可用于获取第二设备的覆盖范围内正在接收组播业务和/或对组播业务感兴趣的终端的标识信息，或者可以用于获取正在接收和/或感兴趣的组播业务的业务标识信息、位置信息、信道状态信息、能力信息等，在此不做限定。可以理解为，第二请求用于获取第一终端的信息。
本申请对于步骤S503的执行条件不做限定，第二请求可以是第二设备每隔一段时间向第二设备的覆盖范围的终端发送的，也可以是第二设备传输的组播业务满足一个约束条件时，向第二设备的覆盖范围的终端发送的，或者第三设备传输的组播业务满足一个约束条件之后，请求第二设备向第二设备的覆盖范围的终端发送的等，上述时间和约束条件可以参照步骤S501的执行条件的描述，在此不再赘述。
可选的，S504：第二设备的覆盖范围内的终端，向第二设备发送该终端的第一信息。
其中，向第二设备发送第一信息的终端，可包括第二设备的覆盖范围内的终端，或者包括第二设备的覆盖范围内接收组播业务，和/或对组播业务感兴趣的终端，也可以理解为第一终端。需要说明的是，对组播业务不感兴趣的终端和/或没有接收组播业务的终端可能不会发送该终端的信息。另外一种可能的实施方式，对组播业务不感兴趣的终端和/或没有接收组播业务的终端发送的信息，可向第二设备发送用于指示该终端对组播业务不感兴趣和/或没有接收组播业务的信息。第一信息可包括但不限于：终端的标识信息、终端正在接收的组播业务的业务标识信息、终端对组播业务感兴趣的业务标识信息、终端不感兴趣的组播业务的业务标识信息、终端的位置信息、终端的信道状态信息、终端的测量结果、终端的能力信息等，可参照前述的第一终端的信息的描述，在此不再赘述。
第一信息可以是基于步骤S503中第二请求中所要求上报的信息，也可以是终端根据自己的感兴趣和/或正在接收的组播业务向第二设备上报的信息等，在此不做限定。如果是终端自发上报的第一信息，可以是根据时间向第二设备上报的，也可以是终端的组播业务满足第二约束条件时向第二设备上报的。该第二约束条件包括但不限定于以下信息：终端对新的或者即将开始的组播业务感兴趣；终端正在接收的组播业务结束或接收中断；终端接收的组播业务的数量超过一个阈值等。上述时间和约束条件可以参照步骤S501的执行条件的描述，在此不再赘述。第一信息还可以是终端与第二设备之间的信号状态参数满足第二约束条件时向第二设备上报的。该第二预设条件可以是信号状态参数中的信号质量、信号强度或网络负载小于一个阈值等，该阈值可以是第九阈值，该第九阈值可以根据以往经验，例如，以往一般是低于多少时接收不到数据等，在此均不作限定。
可选的，S505：第二设备获取第一终端的信息。
本申请对于第二设备获取第一终端的信息的方法不做限定，第二设备可以将第一信息作为第一终端的信息，第二设备也可以基于步骤S504得到的各个终端的第一信息，统计第二设备下存在的每个小区内正在接收和/或对组播业务感兴趣的终端的数量和/或其他信息，也可以基于步骤S504得到的各个终端的第一信息，统计第二设备下存在的所有小区内正在接收和/或对组播业务感兴趣的终端的数量和其他信息。其他信息可包括终端的标识信息、终端正在接收的组播业务的业务标识信息、终端对组播业务感兴趣的业务标识信息、终端不感兴趣的组播业务的业务标识信息、终端的位置信息、终端的信道状态信息、终端的测量结果、终端的能力信息等，可参照第一终端的信息的描述，在此不再赘述。
第二设备可按照前述的业务标识信息进行统计，也可按照前述的bitmap中的业务标识信息进行统计。可以理解为，第二设备基于不同的组播业务进行统计。以组播业务中的第一组 播业务进行举例说明，第二设备可以统计第二设备下存在的每个小区内接收和/或对第一组播业务感兴趣的终端的第一信息，也可以统计第二设备下存在的所有小区内接收和/或对第一组播业务感兴趣的终端的第一信息。该第一组播业务可以是第二设备可以进行传输的/即将开始/正在传输的业务，也可以是组播控制单元发送的第一请求中所要求统计的组播业务等，在此不做限制。
步骤S505可以是第二设备基于步骤S501中的第一请求进行统计的，或者基于组播控制单元发送的其他请求进行统计的，也可以是第二设备基于第二请求进行统计的，或者根据第二设备提供的组播业务的业务标识信息进行统计的，或第二设备接收到的组播业务的请求进行统计的等，此处不做限制。
考虑到接入网设备下相应终端的个数可能是大量的，可选的，第二设备将在一段时间内统计第一信息。该时间可以是一个MCCH修改周期、一个预定义的定值，或者可以是接入网设备或组播控制单元根据辅助信息(比如，以往经验、信道质量、位置信息、组播业务数量、传输情况等)确定的时间等，在此不做限定。
S506：第二设备向组播控制单元发送第一终端的信息。
其中，第一终端的信息可包括第二设备的覆盖范围内接收组播业务，和/或对组播业务感兴趣的终端的组播业务的业务标识信息、位置信息、信道状态信息、测量结果、标识信息、能力信息等，可参照步骤S501中第一终端的信息的描述，在此不再赘述。
在步骤S501-S506所示的方法中，组播控制单元可通过向第二设备发送请求，获取第二设备的覆盖范围内正在接收组播业务，和/或对组播业务感兴趣的终端的统计信息，从而确定第二设备的覆盖范围内正在接收组播业务，和/或对组播业务感兴趣的情况。
需要说明的是，在第二设备传输组播业务时，第三设备可通过单播PTP方式传输组播业务。也就是说，第三设备可向第三设备的覆盖范围内的，正在接收组播业务，和/或对正在传输或即将开始传输组播业务感兴趣的终端传输组播业务。组播控制单元也可统计第三设备下的终端的信息，在一种可能的示例中，如图6所示，图6为本申请提供的第二种组播业务处理方法的流程示意图，包括以下步骤S611～S616，其中：
可选的，S611：组播控制单元向第三设备发送第三请求。
其中，第三请求可用于获取第三设备的覆盖范围内，通过单播PTP方式正在接收组播业务，和/或对正在传输和/或即将开始传输和/或第三设备可以进行传输的组播业务感兴趣的终端的信息。如图6所示，位于第三设备的覆盖范围内的终端包括终端k 1、……、终端k M。可选的，M为大于或等于0的整数。在本申请实施例中，将在第三设备的覆盖范围内正在接收组播业务和/或对即将开始传输的组播业务感兴趣的终端，称为第七终端。也就是说，第三请求用于获取第七终端的信息。需要说明的是，第七终端可以为驻留于或接入第三设备下存在的小区中，以单播PTP方式正在接收组播业务，和/或对第三设备即将开始传输的组播业务感兴趣的终端。第七终端的信息可参照第一终端的信息的描述，在此不再赘述。
步骤S611的执行条件可以参照步骤S501的执行条件，可以是组播控制单元每隔一段时间向第三设备发送第三请求，也可以是第三设备和/或第二设备传输的组播业务在满足第一约束条件时向组播控制单元进行上报，从而执行步骤S611等，在此不再赘述。
可选的，S612：第三设备向组播控制单元发送第二响应消息。
其中，第二响应消息可用于响应接收到来自于组播控制单元的第三请求，或者，指示第三设备可执行该第三请求对应的操作。组播控制单元可根据第二响应消息，确定第三设备已接收到第三请求。若第三设备不能正确地执行步骤S611的请求，则第三设备可向组播控制单 元发送用于指示第三请求响应失败的指示信息。
可选的，S613：第三设备向第三设备的覆盖范围内的终端发送第四请求。
其中，第四请求可用于获取第三设备的覆盖范围内正在接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端的信息。第四请求也可用于获取第三设备的覆盖范围内正在接收组播业务和/或对即将开始传输的组播业务感兴趣的终端的标识信息，或者可以用于获取正在接收和/或对正在传输或即将开始传输的组播业务感兴趣的组播业务的业务标识信息、位置信息、信道状态信息、能力信息等，在此不做限定。可以理解为，第四请求用于获取第七终端的信息。
本申请对于步骤S613的执行条件不做限定，可以是第三设备每隔一段时间向第三设备的覆盖范围的终端发送的，也可以是第二设备传输的组播业务满足一个约束条件时，向第二设备的覆盖范围的终端发送的，或者第三设备传输的组播业务满足一个约束条件之后，请求第二设备向第二设备的覆盖范围的终端发送的等，上述时间和约束条件可以参照步骤S501的执行条件的描述，在此不再赘述。
可选的，S614：第三设备的覆盖范围内的终端，向第三设备发送该终端的第二信息。
其中，向第三设备发送第二信息的终端，可包括第三设备的覆盖范围内的终端，或者包括第三设备的覆盖范围内接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端，也可以理解为上述的第七终端。需要说明的是，对组播业务不感兴趣的终端和/或没有接收组播业务的终端可能不会发送该终端的信息。另外一种可能的实施方式，对组播业务不感兴趣的终端和/或没有接收组播业务的终端发送的信息，可向第二设备发送用于指示该终端对组播业务不感兴趣和/或没有接收组播业务的信息。
第二信息可包括但不限于：终端的标识信息、终端正在接收的组播业务的业务标识信息、终端对组播业务感兴趣的业务标识信息、终端不感兴趣的组播业务的业务标识信息、终端的位置信息、终端的信道状态信息、终端的测量结果、终端的能力信息等，可参照第一信息的描述，在此不再赘述。
第二信息可以是基于步骤S613中第四请求中所要求上报的信息，也可以是终端根据自己的感兴趣和/或正在接收的组播业务向第三设备上报的信息等，在此不做限定。如果是终端自发上报的第二信息，可以是根据时间向第三设备上报的，也可以是终端的组播业务满足第二约束条件时向第三设备上报的，以上时间和第二约束条件可参照步骤S504的描述，在此不再赘述。
可选的，S615：第三设备获取第七终端的信息。
本申请对于第三设备获取第七终端的信息的方法不做限定，第三设备可以将第二信息作为第七终端的信息，第三设备也可以基于步骤S614得到的各个终端的第二信息，统计第三设备下存在的每个小区内正在接收和/或对组播业务感兴趣的终端的数量和/或其他信息，也可以基于步骤S614得到的各个终端的第二信息，统计第三设备下存在的所有小区内正在接收和/或对组播业务感兴趣的终端的数量和其他信息。其他信息如第一终端的信息中描述的第七终端的标识信息、第七终端正在接收的组播业务的业务标识信息、第七终端对组播业务感兴趣的业务标识信息、第七终端不感兴趣的组播业务的业务标识信息、第七终端的位置信息、第七终端的信道状态信息、第七终端的测量结果、第七终端的能力信息等，在此不再赘述。第三设备可按照前述的业务标识信息进行统计，也可按照前述的bitmap中的业务标识信息进行统计。可以理解为，第三设备基于不同的组播业务进行统计。举例可参照步骤S505的描述，在此不再赘述。
步骤S615可以是第三设备基于步骤S611中的第三请求进行统计的，或者基于组播控制单元发送的其他请求进行统计的，也可以是第三设备基于第四请求进行统计的，或者根据第三设备提供的组播业务的业务标识信息进行统计的，或第三设备接收到的组播业务的请求进行统计的等，此处不做限制。
考虑到接入网设备下相应终端的个数可能是大量的，可选的，第三设备将在一段时间内统计第一信息，该时间可以是一个MCCH修改周期、一个预定义的定值，或者可以是接入网设备或组播控制单元根据辅助信息(比如，以往经验、信道质量、位置信息、组播业务数量、传输情况等)确定的时间等，在此不做限定。
可选的，S616：第三设备向组播控制单元发送第七终端的信息。
其中，第七终端的信息可包括第三设备的覆盖范围内接收组播业务，和/或对组播业务感兴趣的终端的组播业务的业务标识信息、位置信息、信道状态信息、测量结果、标识信息、能力信息等，可参照步骤S501中第一终端的信息的描述，在此不再赘述。
在步骤S611-S616所示的方法中，组播控制单元可通过向第三设备发送请求，获取第三设备的覆盖范围内正在接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端的统计信息，从而确定第三设备的覆盖范围内正在接收组播业务，和/或对即将开始传输的组播业务感兴趣的情况。
需要说明的是，本申请实施例对于组播控制单元执行步骤S501和步骤S611之间的时间不做限定，可以同时或不同时发送。
可选的，S507：组播控制单元确定满足第一条件。
若组播控制单元确定满足第一条件，则执行步骤S508和步骤S509。若确定不满足第一条件，可由第二设备继续为第一终端提供组播业务服务，或者可以设置一个时间，例如，第六时间，该时间可参照步骤S501中描述的第五时间，在此不再赘述。该时间可根据第一终端的数量和第十进行设置等，在此不做限定。该第十阈值可以参照第七阈值或第八阈值的描述，在此不再赘述。在第六时间到达时，组播控制单元执行步骤S501。第一条件也可以是通信网络中第二设备和/或第三设备的组播业务发生变化时，例如，新的组播业务即将开始传输或者已经开始传输；之前接收的组播业务结束或者被停止传输；第二设备传输的组播业务的数量超过一个阈值等，执行步骤S502，或向组播业务单元进行上报，从而执行步骤S501。需要说明的是，本申请实施例对于步骤S508和步骤S509的执行时间不做限定，图5中的时序为一种可能的，步骤S508和步骤S509同时执行的实施例。
在本申请实施例中，第一条件可以包括第一终端包括的至少一个终端的数量大于或等于第一阈值。第一终端包括的至少一个终端的数量可以是正在接收某一组播业务(例如，第一组播业务)或者对该组播业务感兴趣的第一终端的数量，也可以是正在接收任一组播业务或者对任一组播业务感兴趣的所有的第一终端的数量。本申请对于第一阈值不做限定，例如，第一阈值为5，若第一终端包括的至少一个终端的数量为7，则满足第一条件。可以理解，当第二设备包括的小区的覆盖范围内，正在接收和/或对正在传输和/或即将开始传输的组播业务感兴趣的第一终端的数量小于第一阈值时，表示该区域内的第一终端较少，可通过发射功率较小的第二设备传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当第一终端的数量大于或等于第一阈值时，表示该区域内的第一终端较多，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务。也就是说，第三设备集中传输组播业务，可提高了组播业务的传输效率和频谱利用 率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第三设备传输的组播业务，可以理解为第三设备的至少一个小区传输所有的组播业务。此处的所有的组播业务，可以是第三设备有能力进行传输的组播业务。此时如果第三设备开启组播业务的传输，则在第三设备开启之前进行组播业务传输的第二设备可不需要进行组播业务的传输。
第三设备传输的组播业务，也可以理解为第三设备的至少一个小区传输一些组播业务。也就是说，第三设备和第二设备可以同时传输不同的组播业务。其中，一些组播业务可依据前述的第一阈值进行划分。上述的组播业务可以是所有的组播业务，例如，假设此时通信网络中正在传输和/或即将开始的不同组播业务的数量为10，第一阈值为7，则第三设备传输的组播业务的数量为3，第二设备传输的组播业务的数量为7。上述的组播业务也可以是针对不同的组播业务，例如，假设第一阈值为7，对于第一组播业务而言，正在接收和/或对第一组播业务感兴趣的第一终端的数量为10，对于第二组播业务而言，正在接收和/或对第一组播业务感兴趣的第一终端的数量为5，则第三设备进行第一组播业务的传输，第二设备不再传输第一组播业务，且第二设备可传输第二组播业务。可以理解为，超出第一阈值的组播业务由第三设备传输，未超过第一阈值的组播业务可由第二设备传输。通过第三设备与第二设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第一条件可以包括第一终端中被第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值。本申请对于第二阈值不做限定，例如，第二阈值为2。举例来说，如图2所示，区域D1对应的位置为接入网设备211下存在的一个小区的覆盖范围，区域D3对应的位置为接入网设备221下存在的所有小区对应的覆盖范围，区域D4对应的位置为接入网设备222下存在的所有小区对应的覆盖范围。终端201和终端202不位于区域D3对应的同一个小区内，终端206和终端207位于区域D4对应的同一个小区内，终端203和终端204不位于区域D4对应的同一个小区内，且不位于终端206和终端207所在的小区内。假设以上的终端均为第一终端，且均被所在区域对应的小区服务，第二阈值为2，则以上的第一终端所属于的小区内的终端的数量均小于或等于第二阈值。
可以理解，当第一终端中被第二设备服务的至少一个终端的数量超过第二阈值时，表示该第二设备的覆盖范围内的终端的较多，可通过第二设备集中传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当第一终端中被第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值时，表示第二设备中为第一终端提供服务的各个小区内的终端较少，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第一条件可以包括第二设备包括的至少一个接入网设备的数量大于或等于第三阈值。本申请对于第三阈值不做限定，例如，第三阈值为1，若此时第二设备包括两个接入网设备，则满足第一条件。可以理解，当为第一终端提供服务的小区所属的第二设备包括的接入网设备的数量小于第三阈值时，表示该区域内的接入网设备较少，可通过每个接入网设备单独传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当接入网设备的数量大于或等于第三阈值时，表示正在接 收和/或对组播业务感兴趣的终端可能分布于多个接入网设备下，也可以理解为正在接收和/或对组播业务感兴趣的终端的分布范围较广，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第一条件也可以包括，被第二设备包括的至少一个接入网设备中每一接入网设备服务的终端(或第一终端)的数量均小于或等于第十一阈值。本申请对于第十一阈值不做限定，例如，第十一阈值为3。举例来说，如图2所示，区域D1对应的位置为接入网设备211下存在的一个小区的覆盖范围，区域D3对应的位置为接入网设备221下存在的所有小区对应的覆盖范围，区域D4对应的位置为接入网设备222下存在的所有小区对应的覆盖范围。终端201和终端202位于区域D3的范围内，终端203、终端204、终端206和终端207位于区域D4的范围内。假设以上的终端均为第一终端，且均被所在区域对应的接入网设备服务，接入网设备221和接入网设备222均为第二设备，接入网设备211为第三设备，第十一阈值为3，则接入网设备221内的第一终端的数量(2)小于或等于第十一阈值，接入网设备222内的第一终端的数量(4)大于第十一阈值，从而不满足第一条件。
可以理解，在接入网设备的覆盖范围内的终端(或第一终端)的数量超过第十一阈值时，表示该接入网设备的覆盖范围内分布的终端(或第一终端)较为集中，可通过第二设备包括的各个接入网设备分别传输组播业务，可提高组播业务传输质量。在接入网设备的覆盖范围内的第一终端的数量小于或等于第十一阈值时，表示该接入网设备的覆盖范围内分布的第一终端较为分散，可通过第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
再举一个例来说，如图1所示，区域D1的范围为接入网设备111下存在的一个小区的覆盖范围，区域D3的范围为接入网设备121下存在的所有小区对应的覆盖范围，区域D4的范围为接入网设备122下存在的所有小区对应的覆盖范围。终端101和终端102位于区域D3的范围内，终端103和终端104位于区域D4的范围内。假设以上的终端均为第一终端，且均被所在区域对应的接入网设备服务，接入网设备121和接入网设备122均为第二设备，接入网设备111为第三设备，第十一阈值为3，则接入网设备121内的第一终端的数量(2)小于或等于第十一阈值，接入网设备122内的第一终端的数量(2)小于或等于第十一阈值，从而满足第一条件，可通过接入网设备111传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。
需要说明的是，上述的第一条件并不构成对本申请实施例的限定，实际应用中，第一条件包括上述的第一终端包括的至少一个终端的数量大于或等于第一阈值，和第一终端被第二设备包括的各个小区服务的终端的数量均小于或等于第二阈值；或者，第一终端包括的至少一个终端的数量大于或等于第一阈值，和第二设备包括的至少一个接入网设备大于或等于第三阈值；或者，第一终端包括的至少一个终端的数量大于或等于第一阈值，和被第二设备包括的各个接入网设备服务的终端(或第一终端)的数量小于或等于第十一阈值，还可以采用其他实施方式限定第一条件。例如，第一终端的信道状态信息大于或等于一个阈值，以信道状态信息中的信号质量/信道条件/信道质量进行举例。可以理解，在终端的信号质量/信道条件/信道质量超过一个阈值时，表示该终端的信号较好，可通过发射功率较大的第三设备传输组播业务。反之，若信号质量低于该阈值，表示该终端的信号较差，可通过与该终端距离较近的第二设备传输组播业务，可提高组播业务传输质量。该阈值可以根据以往经验对信道状 态进行评价得到的，在此不做限定。此时信号质量/信道条件/信道质量满足阈值且正在接收和/或对组播业务感兴趣的终端属于第一终端。
第一条件可以包括以上一个或多个阈值，当所包括的阈值对应的条件均满足时，则认为满足第一条件。
需要说明的是，若步骤S611～S616执行，则还需判断第一终端的信息和第七终端的信息是否满足第一条件。
S508：组播控制单元向第二设备发送第一指示信息。
S509：组播控制单元向第三设备发送第二指示信息。
在本申请实施例中，第一指示信息可用于指示第三设备传输组播业务。第三设备传输的组播业务可参照步骤S507中的描述，在此不再赘述。
在一种可能的示例中，第一指示信息包括第一时间信息，该第一时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第二设备停止传输组播业务的时间。本申请对于第一时间信息不做限定，第一时间信息可以包括定时器的时间，例如，5秒。以第一时间信息中定时器的时间为5秒进行举例，第三设备在步骤S505之后开始计时，在到达5秒时开始传输组播业务，第二设备在步骤S504之后开始计时，或者说接收到第一指示信息后开始计时，在到达5秒时停止传输组播业务。该第一时间信息也可以包括帧号或者子帧号等，可以理解为，在接收到帧号或子帧号对应的数据时执行第一指示信息对应的操作。第一时间信息还可以包括第一时间，该第一时间为第三设备开始传输组播业务的时间。
在本申请实施例中，第二指示信息可用于指示第三设备传输组播业务，和/或，第二设备停止传输组播业务。第二设备停止传输的组播业务，可以是第三设备开始传输的组播业务，也可以是第三设备不进行传输的组播业务，还可以是第三设备不以PTM方式进行传输的组播业务等。第三设备传输组播业务和第二设备(停止)传输的组播业务，可参照第一指示信息的描述，在此不再赘述。在第二设备停止开启组播业务的传输，则在第三设备开启之前进行组播业务传输的第二设备不需要进行组播业务的传输。
在一种可能的示例中，第二指示信息包括第三时间信息，该第三时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第二设备停止传输组播业务的时间。本申请对于第三时间信息不做限定，第三时间信息可以包括定时器的时间，也可以包括帧号或者子帧号等，还可以包括第二时间，该第二时间为第二设备停止传输组播业务的时间。第二指示信息可参照第一指示信息的描述，在此不再赘述。需要说明的是，第二时间可早于或等于第一时间，从而避免组播业务中断，便于提高服务质量。第二指示信息可在满足第一条件时，由组播控制单元向第三设备发送。
本申请对于第一时间和第二时间不做限定，可以根据以往经验(例如，第二设备向当前连接的终端接收组播业务所需的时间等)、信道质量情况、网络负载情况等确定。可以理解，在第一设备或第三设备开始传输组播业务时或之前，第二设备的终端完成组播业务的配置，可避免组播业务中断，便于提高服务质量。
需要说明的是，第一指示信息也可包括第二时间信息，第二指示信息也可包括第一时间信息。第一指示信息和第二指示信息可以为同一个指示信息，第一时间信息和第二时间信息可以为同一个时间信息。
可选的，S510，第二设备发送第五指示信息。
在本申请实施例中，第五指示信息可用于指示第五终端重选至第三设备。第五指示信息可由第二设备在第二设备的覆盖范围内进行广播，可以理解为在第二设备下的小区进行广播， 或者在第二设备下存在第五终端的小区进行广播等，在此不做限定。第五终端可以属于第一终端。第五终端可以位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。需要说明的是，上述第五终端包括驻留于第二设备的小区的终端；对于接入于第二设备的小区的终端可基于载波聚合技术添加辅载波，或者切换至第三设备，从而可避免组播业务中断，可提高服务质量。
本申请对于第五指示信息的具体内容不做限定，第五指示信息可采用显示或者隐式的方式。第五指示信息包括第三设备的标识信息，该标识信息可用于标识第三设备。终端可基于第五指示信息中的标识信息，重选至该标识信息对应的第三设备。或者，第五指示信息中可以指示第三设备的频点优先级为最高优先级，终端可基于最高优先级的频点重选至第三设备。或者第五指示信息中可以指示第三设备的频点优先级信息，可选的，第五指示信息可以包括第三设备和第二设备的频点优先级的第一配置信息，该配置信息可包括配置参数，例如，偏置参数(offset)等。此时，第五指示信息指示在进行小区重选时提高第三设备的频点的优先级。或者第五指示信息可以包括组播业务或者一些组播业务的配置信息，该配置信息可用于指示组播业务如何传输，和/或所有的组播业务或者一些组播业务为第二设备即将停止传输的组播业务。该配置信息可具体用于获取组播业务的传输优先级、第三设备和第二设备的频点优先级、第三设备的频点优先级为最高优先级，组播业务的控制调度信息等。终端可基于第五指示信息中的组播业务的配置信息，判断出第二设备将停止组播业务的传输，终端重选至第三设备。通过该配置信息可确定待连接的接入网设备为第三设备，从而终端可重选至该标识信息对应的第三设备。第五指示信息还可以是第二设备停止传输组播业务的指示信息等，可以理解为第五指示信息指示第二设备停止传输组播业务，第二设备的覆盖范围内的终端执行搜网步骤，以确定传输组播业务的设备，从而在第三设备中驻留。可以理解，第五终端重选至第三设备之后，第三设备可向第五终端传输组播业务，可避免组播业务中断，便于提高服务质量。第五指示信息可以为上述可能性的一项或多项内容，在此不做限制。
可选的，S511：第二设备向第三设备发送第一确认信息。
其中，第一确认信息可用于指示第二设备对应的终端已重选至第三设备。第一确认信息可在第二设备确定位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第三设备之后，或者可以是第二设备确定停止传输组播业务之后，向第三设备发送的。上述第一确认信息可在第一时间信息对应的时间到达之前，由第二设备发送给第三设备。
可以理解，若第三设备接收到第一确认信息，表示位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第三设备，从而该终端可通过第三设备接收组播业务，可避免业务中断，便于提高服务质量。
上述的第一请求、第一响应消息、第二请求、第一信息、第一终端的信息、第三请求、第二响应消息、第四请求、第二信息、第七终端的信息、第一指示信息、第二指示信息等均可通过组播业务控制信道，例如，MCCH，或包括系统信息，或RRC信息等进行发送，在此不做限定。
在图5所示的方法中，在第三设备不进行组播业务的传输之后，组播控制单元从第二设备接收第二设备的覆盖范围内，接收组播业务或对组播业务感兴趣的终端的信息之后，向第二设备和第三设备分别发送组播业务的指示信息。进而，第二设备可与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
与图5所示的实施例中的组播控制单元、第二设备和第三设备一致，请参照图7，图7为本申请提供第三种组播业务处理方法，该方法应用于如图2所示的通信网络。在实施该方法之前，组播控制单元进行组播业务的传输，其中：
可选的，S701：组播控制单元向第三设备发送第五请求。
在本申请实施例中，第五请求可用于获取第二终端的信息。第二终端被第三设备服务，且第二终端可包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。第二终端可以是正在接收第三设备传输的组播业务的所有的终端，和/或对第三设备正在传输和/或即将开始传输和/或有能力传输的感兴趣的所有的终端，还可以是一些/部分组播业务对应的终端，例如，第三设备可以进行传输，但在步骤S507中没有达到第一条件，而未进行传输的组播业务的终端，或者是指定的第一组播业务等。如图7所示，第三设备的覆盖范围内的终端包括终端W 1，……，终端W J，其中，J为大于或等于0的整数。
可以理解，第二终端被第三设备服务，可以理解为第二终端的位置位于第三设备的小区的覆盖范围内，也可以理解为第二终端被第三设备包括的至少一个小区服务，也可以说，第三设备的小区可以是第二终端驻留的小区，和/或第二终端接入的小区，和/或第二终端待接入的小区。在第三设备的覆盖范围包括第二设备的覆盖范围时，第二终端的位置可位于第三设备的小区的覆盖范围内，同理，第二终端也可以被第二设备的小区服务，也可以说该第二设备的小区可以是第二终端驻留的小区和/或第二终端接入的小区，和/或第二终端待接入的小区。
示例性的，如图2所示，若第三设备为接入网设备211，第二设备为接入网设备221，且终端201接收接入网设备211传输的组播业务，终端202对接入网设备211传输的组播业务感兴趣，则第二终端可以是终端201和终端202。
本申请对于第二终端的信息不做限定，在一种可能的示例中，第二终端的信息可用于指示第二终端包括的至少一个终端的数量。第二终端的信息包括但不限定于以下信息：第二设备的覆盖范围内，接收组播业务和/或对组播业务感兴趣的终端的数量；第二终端包括的至少一个终端的数量；第二终端的标识信息；第二终端感兴趣和/或正在接收的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息；第二终端的测量结果；第二终端的能力信息等。以上第二终端的信息可参照第一终端的信息的描述，在此不再赘述。
本申请对于第二请求的内容不做限定，可以指定获取第二终端的信息的类型，也可以指定获取组播业务的统计列表等。本申请对于步骤S701的执行条件不做限定，可以是组播控制单元每隔一段时间、第三设备和/或第二设备在满足第一约束条件时，向第三设备进行上报。具体均可参照步骤S501的描述，在此不再赘述。
可选的，S702：第三设备向组播控制单元发送第三响应消息。
其中，第三响应消息可用于响应接收到来自于组播控制单元的第五请求，或者，指示第三设备可执行该第五请求对应的操作。组播控制单元可根据第三响应消息，确定第三设备已接收到第三请求。若第三设备不能正确地执行步骤S701的请求，则第三设备可向组播控制单元发送用于指示第五请求响应失败的指示信息。
可选的，S703：第三设备向第三设备的覆盖范围的终端，发送第六请求。
其中，第六请求可用于获取第三设备的覆盖范围内正在接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端的信息。第六请求也可用于获取第三设备的覆盖范围内正在接收组播业务和/或对正在传输或即将开始传输的组播业务感兴趣的终端的标识信 息，或者可以用于获取正在接收和/或感兴趣的组播业务的业务标识信息、位置信息、信道状态信息、能力信息等，在此不做限定。可以理解为，第六请求用于获取第二终端的信息。
第六请求还可以包括用于请求第二终端在驻留和/或接入第三设备前，所驻留于或所接入的第二设备的信息，或者第二终端当前所在的位置所属的第二设备的信息，或者当前第二终端经过测量确定的可以驻留的一个或多个小区所属的第二设备。此处的第二设备的信息，可以包括第二设备的标识信息、第二设备的覆盖范围内正在接收任一组播业务和/或对正在传输或即将开始传输的任一组播业务感兴趣的所有终端的数量、第二设备的覆盖范围内正在接收某一组播业务和/或对正在传输或即将开始传输的某一组播业务感兴趣的终端的数量、第二设备的覆盖范围内的终端的信道状态信息、能力信息等，在此不做限定。其中，第二设备的标识信息可以包括第二设备的标识，例如，设备ID，IP标识，端口号，第二设备的位置对应的地理标识或小区标识等，在此也不做限定。
本申请对于步骤S703的执行条件不做限定，可以是第三设备每隔一段时间向第三设备的覆盖范围的终端发送的，也可以是第三设备传输的组播业务满足一个约束条件时，向第二设备的覆盖范围的终端发送的，或者第二设备传输的组播业务满足一个约束条件之后，请求第三设备向第三设备的覆盖范围的终端发送的等，上述时间和约束条件可以参照步骤S501的执行条件的描述，在此不再赘述。
可选的，S704：第三设备的覆盖范围内的终端向第三设备发送该终端的第三信息。
其中，向第三设备发送第三信息的终端，可包括第三设备的覆盖范围内的终端，或者包括第三设备的覆盖范围内接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端，也可以理解为上述的第二终端。需要说明的是，对组播业务不感兴趣的终端和/或没有接收组播业务的终端可能不会发送该终端的信息。另外一种可能的实施方式，对组播业务不感兴趣的终端和/或没有接收组播业务的终端发送的信息，可向第三设备发送用于指示该终端对组播业务不感兴趣和/或没有接收组播业务的信息。
第三信息可以包括发送该第三信息的终端的信息，例如，标识信息、正在接收的组播业务的业务标识信息、对组播业务感兴趣的业务标识信息、不感兴趣的组播业务的业务标识信息、位置信息、信道状态信息、测量结果、能力信息等，可参照第一信息的描述，在此不再赘述。
第三信息还可以包括第二终端在驻留和/或接入第三设备前，所驻留于或所接入的第二设备的标识信息以及该第二设备的信息，或者包括第二设备当前可驻留的小区对应的第二设备的标识信息以及该第二设备的信息。该标识信息和第二设备的信息可参照步骤S703的描述，在此不再赘述。可以理解，通过第二设备的标识信息可获取该第二设备的信息。第二设备当前可驻留的小区可以是第三设备的覆盖范围的终端，在接收到第六请求之后，进行测量，得到的符合驻留条件的小区。
第三信息可以是基于步骤S703中第六请求中所要求上报的信息，也可以是终端根据自己的感兴趣和/或正在接收的组播业务向第三设备上报的信息等，在此不做限定。如果是终端自发上报的第三信息，可以是根据时间向第三设备上报的，也可以是终端的组播业务满足第二约束条件时向第三设备上报的，以上时间和第二约束条件可参照步骤S504的描述，在此不再赘述。
可选的，S705：第三设备获取第二终端的信息。
本申请对于第三设备获取第二终端的信息的方法不做限定，第三设备可以将第三信息作为第二终端的信息，第三设备也可以基于步骤S704得到的各个终端的第三信息，统计第三设 备的覆盖范围内下存在的每个小区内或所有的小区内正在接收和/或对组播业务感兴趣的终端的数量和/或其他信息，也可以统计各个终端在驻留和/或接入第三设备前，所驻留或所接入的第二设备下存在的每个小区或所有小区内正在接收和/或对组播业务感兴趣的终端的数量和其他信息，或者统计各个终端当前可驻留或接入的第二设备下存在的每个小区或所有小区内正在接收和/或对组播业务感兴趣的终端的数量和其他信息。其他信息可包括第二终端的标识信息、第二终端正在接收的组播业务的业务标识信息、第二终端对组播业务感兴趣的业务标识信息、第二终端不感兴趣的组播业务的业务标识信息、第二终端的位置信息、第二终端的信道状态信息、第二终端的测量结果、第二终端的能力信息等，可参照第一终端的信息的描述，在此不再赘述。其他信息还可包括终端在驻留和/或接入第三设备前，所驻留或所接入的第二设备，或终端当前可驻留或接入的第二设备的设备标识，以及第二设备的信息，可参照第六请求的描述，在此不再赘述。第二终端的信息可以包括上述的一项或多项信息，在此不做限定。如此，通过第二终端的信息，组播控制单元或第三设备，可确定第三设备是否继续所有的组播业务的传输，或者继续一些组播业务的传输。
第三设备可按照前述的业务标识信息进行统计，也可按照前述的bitmap中的业务标识信息进行统计。可以理解为，第三设备基于不同的组播业务进行统计。举例可参照步骤S505的描述，在此不再赘述。
步骤S705可以是第三设备基于步骤S701中的第五请求进行统计的，或者基于组播控制单元发送的其他请求进行统计的，也可以是第三设备基于第六请求进行统计的，或者根据第三设备提供的组播业务的业务标识信息进行统计的，或第三设备接收到的组播业务的请求进行统计的等，此处不做限制。
考虑到接入网设备下相应终端的个数可能是大量的，可选的，第三设备将在一段时间内统计第一信息，该时间可以是一个MCCH修改周期、一个预定义的定值，或者可以是接入网设备或组播控制单元根据辅助信息(比如，以往经验、信道质量、位置信息、组播业务数量、传输情况等)确定的时间等，在此不做限定。
在步骤S701-S706所示的方法中，组播控制单元可通过向第三设备发送请求，获取第三设备的覆盖范围内正在接收组播业务，和/或对组播业务感兴趣的终端的统计信息，从而确定第三设备的覆盖范围内正在接收组播业务，和/或对组播业务感兴趣的情况。
S706：第三设备向组播控制单元发送第二终端的信息。
本申请对于第二终端的信息的接收方法不做限定。在一种可能的示例中，步骤S706可参照以下的两种方式，其中：
第一种方式，第三设备从第二终端接收第三终端的信息，其中，第三终端为第二终端包括的至少一个终端。
第二种方式，第三设备从第二设备接收第四终端的信息，其中，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可以理解，当第二终端中的终端可直接向第三设备发送上行数据时，该终端可以作为第三终端通过第一种方式向第三设备发送该第三终端的信息，也可作为第四终端通过第二种方式向第三设备发送该第四终端的信息。当该第三终端无法向组播控制单元发送上行数据时，可作为第四终端通过第二种方式向第三设备发送该第四终端的信息，从而避免数据遗漏。
可选的，S707：组播控制单元确定满足第二条件。
若组播控制单元确定满足第二条件，执行步骤S708和步骤S709。若确定不满足第二条件，可不改变第二设备和第三设备的组播业务设置，或者可以设置一个时间，在该时间到达 时执行步骤S708或步骤S709。该时间可参照步骤S507的描述，在此不再赘述。需要说明的是，本申请实施例对于步骤S708和步骤S709的执行时间不做限定，图7中的时序为一种可能的，步骤S708和步骤S709同时执行的实施例。
在本申请实施例中，第二条件可以包括第二终端包括的至少一个终端的数量小于或等于第四阈值。第二终端包括的至少一个终端的数量可以是正在接收某一组播业务(例如，第一组播业务)或者对该组播业务感兴趣的第二终端的数量，也可以是正在接收任一组播业务或者对任一组播业务感兴趣的所有的第二终端的数量。本申请对于第四阈值不做限定，第四阈值可以与第一阈值相同，也可以不同。可以理解，当第二设备包括的小区的覆盖范围内，正在接收和/或对正在传输和/或即将开始传输的组播业务感兴趣的第二终端的数量小于第四阈值时，表示该区域内的第二终端较少，可通过发射功率较小的第二设备传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当第二终端的数量大于或等于第四阈值时，表示该区域内的第二终端较多，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务。也就是说，第三设备集中传输组播业务，可提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第二条件可以包括第二终端被第二设备服务的至少一个终端的数量大于或等于第五阈值。此处的第二设备可以是第二终端进行测量上报之后，上报的可当前可驻留的小区对应的第二设备，也可以是第二终端在驻留和/或接入第三设备前，所驻留于或所接入的第二设备。此处的第二终端包括接收第三设备传输的组播业务和/或对第三设备传输的组播业务感兴趣的终端，还可包括接收第二设备传输的组播业务，和/或对第二设备传输的组播业务感兴趣的终端。
本申请对于第五阈值不做限定，第五阈值可以与第二阈值相同，也可以不同。可以理解，当第二终端被第二设备服务的至少一个终端的数量超过第五阈值时，表示该第二设备的覆盖范围内的终端较多，可通过该第二设备集中传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当第二终端被第二设备包括的各个小区服务的终端的数量小于或等于第五阈值时，表示第二设备中为第二终端提供服务的小区的覆盖范围内的终端较少，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
第二条件可以包括第二设备包括的至少一个接入网设备的数量均小于或等于第六阈值。本申请对于第六阈值不做限定，第六阈值可以与第三阈值相同，也可以不同。可以理解，当为第二终端提供服务的小区所属的第二设备包括的接入网设备的数量小于第六阈值时，表示该区域内的接入网设备较少，可通过每个接入网设备单独传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。当接入网设备的数量大于或等于第六阈值时，表示正在接收和/或对组播业务感兴趣的终端可能分布于多个接入网设备下，也可以理解为正在接收和/或对组播业务感兴趣的终端的分布范围较广，可通过覆盖范围较大，发射功率较大的第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体 验。
第二条件可以包括，被第二设备包括的至少一个接入网设备中每一接入网设备提供服务的终端或(第二终端)的数量均小于或等于第十二阈值。本申请对于第十二阈值不做限定，第十二阈值可以与第十一阈值相同，也可以不同。可以理解，在被接入网设备服务的终端的数量超过第十二阈值时，表示该接入网设备的覆盖范围内分布的终端较为集中，可通过第二设备包括的各个接入网设备分别传输组播业务，此时不用功率较大的第三设备进行组播业务传输，从而优化网络的能源消耗，降低功耗；同时优化空口资源的使用，避免第二设备和第三设备间存在的潜在通信干扰，减低部署难度，避免空口资源浪费。在被接入网设备服务的终端的数量小于或等于第十二阈值时，表示该接入网设备的覆盖范围内分布的终端较为分散，可通过第三设备传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
需要说明的是，上述的第二条件并不构成对本申请实施例的限定，实际应用中，第二条件包括上述的第二终端包括的至少一个终端的数量小于或等于第四阈值，和第二终端中被第二设备服务的至少一个终端的数量大于或等于第五阈值，或者，第二终端包括的至少一个终端的数量小于或等于第四阈值，和第二设备包括的至少一个接入网设备小于或等于第六阈值；或者，第二终端包括的至少一个终端的数量小于或等于第四阈值，和被第二设备包括的至少一个接入网设备服务的终端的数量大于或等于第十二阈值，还可以采用其他实施方式限定第二条件，可参照第一条件的描述，在此不再赘述。第二条件可以包括以上一个或多个阈值，当所包括的阈值对应的条件均满足时，则认为满足第二条件。
S708：组播控制单元向第二设备发送第三指示信息。
在本申请实施例中，第三指示信息可用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务。第三设备停止传输组播业务，可以理解为第三设备的小区关闭组播业务服务，第二设备的小区开启组播业务服务。也可以理解为，在第三设备停止传输组播业务之后，由第二设备负责组播业务的传输。
在一种可能的示例中，第三指示信息包括第二时间信息，该第二时间信息可用于指示第一设备或第三设备停止传输组播业务的时间，和/或，指示第二设备开始传输组播业务的时间。第二时间信息可包括定时器的时间，也可包括帧号或者子帧号等，还可以包括第三时间等，该第三时间为第二设备开始传输组播业务的时间。第三指示信息和第二时间信息可分别参照第一指示信息和第一时间信息的描述，在此不再赘述。
S709：组播控制单元向第三设备发送第四指示信息。
其中，第四指示信息可用于指示第三设备停止传输组播业务，和/或，第二设备传输组播业务。第四指示信息可包括第四时间信息，该第四时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，指示第二设备开始传输组播业务的时间。第四时间信息可包括定时器的时间，也可以包括帧号或者子帧号等，还可以包括第四时间等。该第四时间为第三设备停止传输组播业务的时间。第四指示信息和第四时间可参照第二指示信息和第二时间的描述，在此不再赘述。需要说明的是，第四时间可早于或等于第三时间，从而避免组播业务中断，便于提高服务质量。
本申请对于第三时间和第四时间不做限定，可以根据以往经验(例如，第二设备向当前连接的终端接收组播业务所需的时间等)、信道质量情况、网络负载情况等确定。可以理解，在第二设备开始传输组播业务时或之前，第三设备的终端完成组播业务的配置，可避免组播业务中断，便于提高服务质量。
需要说明的是，第三指示信息也可包括第四时间信息，第四指示信息也可包括第三时间信息。第三指示信息和第四指示信息可以为同一个指示信息，第三时间信息和第四时间信息可以为同一个时间信息。
可选的，S710：第三设备发送第六指示信息。
其中，第六指示信息可用于指示第六终端重选至第二设备。第六指示信息可由第三设备在第三设备的覆盖范围内进行广播，可以理解为在第三设备下的小区进行广播，或者在第二设备下存在第六终端的小区进行广播等，在此不做限定。第六终端可以属于第二终端。第六终端可以位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。需要说明的是，上述第六终端包括驻留于第三设备的小区的终端。对于接入第三设备的小区的终端可基于载波聚合技术添加辅载波，或者切换至第二设备，从而避免组播业务中断，可提高服务质量。
本申请对于第六指示信息的具体内容不做限定，第六指示信息可采用显示或者隐式的方式。第六指示信息可以包括以下至少一项信息：第二设备的标识信息；第二设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第二配置信息；第三设备停止传输组播业务的指示信息等。具体可参照步骤第五指示信息的描述，在此不再赘述。需要说明的是，第二配置信息可用于指示第二设备的频点优先级为最高的频点优先级，或者提高第二设备的频点优先级。可以理解，第六终端重选至第二设备之后，第二设备可向第一终端传输组播业务，可避免组播业务中断，便于提高服务质量。
可选的，S711：第三设备向第二设备发送第二确认信息。
其中，第二确认信息可用于指示第三设备对应的终端已重选至第二设备。步骤S711可在第二设备确定位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第二设备之后，或者可以是第三设备确定停止传输组播业务之后，向第三设备发送的等。上述第二确认信息可在第二时间信息对应的时间到达之前，由第三设备发送给第二设备。
可以理解，若第三设备接收到第二确认信息，表示位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第二设备，从而该终端可通过第二设备接收组播业务，可避免业务中断，便于提高服务质量。
上述的第五请求、第三响应消息、第六请求、第三信息、第二终端的信息、第三指示信息、第四指示信息、第六指示信息、第二确认信息等均可通过组播业务控制信道，例如，MCCH，或包括系统信息，或RRC信息等进行发送，在此不做限定。
在图7所示的方法中，在第三设备进行组播业务的传输之后，组播控制单元在接收到第三设备的覆盖范围内，接收组播业务或对组播业务感兴趣的终端的信息之后，向第二设备和第三设备分别发送组播业务的指示信息。进而，第二设备可与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
与图5所示的实施例中的第二设备和第三设备一致，请参照图8，图8为本申请实施例提出的第四种组播业务处理方法的流程示意图。该方法应用于如图1所示的通信网络中。在实施该方法之前，第三设备不进行组播业务的传输。如图8所示，其中：
可选的，S801：第三设备向第二设备发送第一请求。
可选的，S802：第二设备向第三设备发送第一响应消息。
可选的，S803：第二设备向第二设备的覆盖范围内的终端发送第二请求；
可选的，S804：第二设备向第二设备的覆盖范围内的终端，向第二设备发送该终端的第一信息；
可选的，S805：第二设备获取第一终端的信息。
S806：从第二设备向第三设备发送第一终端的信息。
如图8所示，位于第二设备的覆盖范围内的终端包括终端p 1、……、终端p s，其中，S为大于或等于0的整数。第一请求和第二请求可用于获取第一终端的信息。第一终端被第二设备包括的至少一个小区服务，且第一终端可包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。第一响应消息可用于指示第二设备已接收到第一请求，或者，指示第二设备可执行该第一请求对应的操作。第一信息为第一终端的信息。步骤S801～S806可参照步骤S501～S506的描述，在此不再赘述。
需要说明的是，在第二设备传输组播业务时，第三设备可通过单播PTP方式传输组播业务。也就是说，第三设备可向第三设备的覆盖范围内的，正在接收组播业务，和/或对正在传输或即将开始传输的组播业务感兴趣的终端传输组播业务。组播控制单元也可统计第三设备下的终端的信息，可选的，图8所示的方法还包括以下步骤S8011～S8013(图8中未示出)，其中：
S8011：第三设备向第三设备的覆盖范围内的终端发送第四请求；
S8012：第三设备向第三设备的覆盖范围内的终端向第三设备发送该终端的第二信息；
S8013：第三设备统计第二信息，得到第七终端的信息。
其中，第七终端为第三设备的覆盖范围内正在接收组播业务和/或对即将开始传输的组播业务感兴趣的终端，可以为驻留于或接入第三设备下存在的小区中，以单播PTP方式正在接收组播业务，和/或对第三设备即将开始传输的组播业务感兴趣的终端。第四请求可用于获取第七终端的信息。第二信息可包括但不限于：终端的标识信息、终端正在接收的组播业务的业务标识信息、终端对组播业务感兴趣的业务标识信息、终端不感兴趣的组播业务的业务标识信息、终端的位置信息、终端的信道状态信息、终端的测量结果、终端的能力信息等，可参照第一信息的描述，在此不再赘述。第七终端的信息可参照第一终端的信息的描述，步骤S8011～S8013可参照步骤S613～S615的描述，在此不再赘述。
可选的，S807：第三设备确定满足第一条件。
若第三设备确定满足第一条件，执行步骤S808。第一条件可包括以下至少一项：第一终端包括的至少一个终端的数量小于或等于第一阈值；第一终端中被第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值；第二设备包括的至少一个接入网设备的数量大于或等于第三阈值；被第二设备包括的至少一个接入网设备中每一接入网设备服务的终端的数量均小于或等于第十一阈值等，可参照步骤S507的描述，在此不再赘述。
需要说明的是，若步骤S8011～S8013执行，则还需判断第一终端的信息和第七终端的信息是否满足第一条件。
S808：第三设备向第二设备发送第一指示信息。
其中，第一指示信息可用于指示第三设备传输组播业务，和/或，第二设备停止传输组播业务。第一指示信息可包括第一时间信息，该第一时间信息用于指示第三设备开始传输组播业务的时间，和/或，指示第二设备停止传输组播业务的时间，可参照步骤S505和步骤S509的描述，在此不再赘述。
可选的，S809：第二设备发送第五指示信息。
其中，第五指示信息可用于指示第五终端重选至第三设备，第五指示信息可以包括以下至少一项：第三设备的标识信息；第三设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第一配置信息；第二设备停止传输组播业务的指示信息等。第五指示信息可参照S510的描述，在此不再赘述。可以理解，第五终端可依据第五指示信息，重选至第三设备之后，第三设备可向第五终端传输组播业务，可避免组播业务中断，便于提高服务质量。
可选的，S810：第二设备向第三设备发送第一确认信息。
其中，第一确认信息可用于指示第二设备对应的终端已重选至第三设备。步骤S511可在第二设备确定位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第三设备之后，或者可以是第二设备确定停止传输组播业务之后，向第三设备发送的。上述第一确认信息可在第一时间信息对应的时间到达之前，由第二设备发送给第三设备。
可以理解，若第三设备接收到第一确认信息，表示位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第三设备，从而该终端可通过第三设备接收组播业务，可避免业务中断，便于提高服务质量。
上述的第一请求、第一响应消息、第二请求、第一信息、第一终端的信息、第三请求、第二响应消息、第四请求、第二信息、第七终端的信息、第一指示信息、第二指示信息等均可通过组播业务控制信道，例如，MCCH，或包括系统信息，或RRC信息等进行发送，在此不做限定。
在图8所示的方法中，在第三设备不进行组播业务的传输之后，第三设备从第二设备接收第二设备的覆盖范围内，接收组播业务或对组播业务感兴趣的终端的信息之后，向第二设备发送组播业务的指示信息。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
与图5和图7所示的实施例中的第二设备和第三设备一致，请参照图9，图9为本申请实施例提出的第五种组播业务处理方法的流程示意图。该方法应用于如图1所示的通信网络中。在实施该方法之前，第三设备进行组播业务的传输，其中：
可选的，S901：第三设备向第三设备的覆盖范围内的终端发送第六请求。
如图9所示，第三设备的覆盖范围内的终端包括终端W 1，……，终端W J，其中，J为大于或等于1的整数。第六请求用于获取第二终端的信息，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。本申请对于步骤S901的执行条件不做限定，可以是第三设备每隔一段时间、第二设备在满足第一约束条件时，向第三设备进行上报，或者第三设备在满足第一约束条件时执行步骤S901。第六请求可参照步骤S501和第四请求的描述，步骤S901可参照步骤S701的描述，在此不再赘述。
可选的，S902：第三设备接收来自第二终端的第三信息。
本申请对于第二终端的信息不做限定，在一种可能的示例中，第二终端的信息可用于指示第二终端包括的至少一个终端的数量。第二终端的信息包括但不限定于以下信息：第二设备的覆盖范围内，接收组播业务和/或对组播业务感兴趣的终端的数量；第二终端包括的至少一个终端的数量；第二终端的标识信息；第二终端感兴趣和/或正在接收的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息；第二终端的测量结果；第二终端 的能力信息等。第二终端、第二终端的第三信息可参照步骤S701和步骤S704的描述。
在一种可能的示例中，步骤S902具体包括以下的两种方式，其中：
第一种方式，第三设备从第二终端接收第三终端的第三信息，其中，第三终端为第二终端包括的至少一个终端。
第二种方式，第三设备从第二设备接收第四终端的第三信息，其中，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可以理解，当第二终端中的终端可直接向第三设备发送上行数据时，该终端可以作为第三终端通过第一种方式向第三设备发送该第三终端的第三信息，也可作为第四终端通过第二种方式向第三设备发送该第四终端的信息。当该第三终端无法向组播控制单元发送上行数据时，可作为第四终端通过第二种方式向第三设备发送该第四终端的信息，从而避免数据遗漏。
可选的，S903：第三设备获取第二终端的信息。
其中，步骤S903可参照步骤S705的描述，在此不再赘述。
可选的，S904：第三设备确定满足第二条件。
其中，第二条件可包括以下至少一项：第二终端包括的至少一个终端的数量小于或等于第四阈值；第二终端中被第二设备服务的至少一个终端的数量大于或等于第五阈值；第二设备包括的至少一个接入网设备小于或等于第六阈值；被第二设备包括的至少一个接入网设备中每一接入网设备服务的终端的数量均小于或等于第十二阈值等，可参照步骤S707的描述，在此不再赘述。
S905：第三设备向第二设备发送第三指示信息。
在本申请实施例中，第三指示信息可用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务。可以理解为第三设备的小区关闭组播业务服务，第二设备的小区开启组播业务服务。也可以理解为，在第三设备停止传输组播业务之后，由第二设备负责组播业务的传输。
在一种可能的示例中，第三指示信息可包括第二时间信息，该第二时间信息可用于指示第一设备或第三设备停止传输组播业务的时间，和/或，指示第二设备开始传输组播业务的时间，可参照步骤S708的描述，在此不再赘述。
可选的，S906：第三设备发送第六指示信息。
其中，第六指示信息可参照前述，在此不再赘述。第六指示信息可用于指示第六终端重选至第二设备，第六指示信息可以包括以下至少一项：第二设备的标识信息；第二设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第二配置信息；第三设备停止传输组播业务的指示信息。可以理解，第六终端可依据第六指示信息，重选至第二设备之后，第二设备可向第六终端传输组播业务，可避免组播业务中断，便于提高服务质量。
可选的，S907：第三设备向第二设备发送第二确认信息。
其中，第二确认信息可用于指示第三设备对应的终端已重选至第二设备。步骤S907可在第二设备确定位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第二设备之后，或者可以是第三设备确定停止传输组播业务之后，向第三设备发送的等。上述第二确认信息可在第二时间信息对应的时间到达之前，由第三设备发送给第二设备。
可以理解，若第三设备接收到第二确认信息，表示位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣的终端已重选至第二设备，从而该终端可通过第二设备接收组播业务，可避免业务中断，便于提高服务质量。
上述的第六请求、第三信息、第二终端的信息、第三指示信息、第六指示信息、第二确认信息等均可通过组播业务控制信道，例如，MCCH，或包括系统信息，或RRC信息等进行发送，在此不做限定。
在图9所示的方法中，在第三设备进行组播业务的传输之后，第三设备在接收到第二终端的信息之后，向第二设备发送组播业务的指示信息。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
小区干扰协调(Inter-cell Interference Coordination，ICIC)技术适用于对下行链路(Down Link，DL)控制信道的干扰控制。几乎空白的子帧(Almost Blank Subframe，ABS)是增强型(enhanced ICIC，eICIC)技术中引入的子帧，该子帧中添加了时域ICIC。ABS子帧仅包含控制信息和特定于小区的参考信号，不包含用户数据，并且以降低的功率发送。如图10所示，eNB1的覆盖范围大于eNB2的覆盖范围，当使用eICIC技术时，eNB1将以降低功率的方式，在下行链路无线帧(DL radio frame)中的ABS子帧上，发送上述的控制信息和参考信号。此时，eNB2使用DL radio frame上与ABS子帧对应的子帧，向位于eNB2下存在的小区的边缘的终端(例如，终端101)发送用户数据，从而终端101可基于eNB1的DL radio frame的ABS子帧和eNB2的DL radio frame上与ABS子帧对应的子帧接收信息。
在第三设备和第二设备对应的通信网络中，若第二设备和第三设备之间的频率相同，则功率大的第三设备会对第二设备产生较大干扰。然而，若第三设备采用eICIC技术降低功率传输组播业务，会减小第三设备的覆盖范围。因此，eICIC技术不适应在上述的第三设备和第二设备组成的通信网络中进行组播业务传输。
基于此，本申请提出第六种组播业务处理方法，该方法可应用于第二设备和第三设备对应的通信网络，可以是如图1所示的通信网络，也可以是应用于如图2所示的通信网络，在此不做限定。且第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备同频部署，第三设备和第二设备之间的时频资源不同。如图11所示，第三设备1110的覆盖范围包括第二设备1120、第二设备1121和第二设备1122的覆盖范围，第三设备1110使用的时频资源为图11中A部分对应的灰色区域，第二设备1120、第二设备1121和第二设备1122使用的时频资源为图11中B部分对应的灰色区域。可以理解为，第三设备1110和第二设备1120、第二设备1121和第二设备1122所使用的时频资源不同，通过划分时频资源可避免第三设备对第二设备产生干扰，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
请参照图12，图12为本申请实施例提出的第六种组播业务处理方法的流程示意图。如图12所示，其中：
可选的，S1201：第二设备向第三设备发送第七请求。
在本申请实施例中，第七请求可以用于指示第三设备为第二设备分配资源。该第七请求可包括第二设备的资源信息，例如，第二设备传输所有的业务使用的资源；第二设备传输所有的组播业务使用的资源；第二设备传输每一个组播业务使用的资源；第二设备已分配的资源；第二设备待分配/剩余的资源；第二设备的资源使用情况等。第七请求还包括第二设备的信息，例如，第二设备上传输的组播业务对应的业务标识信息；第二设备上传输的业务对应的业务标识信息；组播业务的优先级；业务的优先级；第二设备的设备标识；第二设备的优先级；第二设备的位置信息；第二设备的能力信息；被第二设备下存在的小区服务的终端的 信息等。
其中，业务的优先级、组播业务的优先级可以是分配资源的优先级，也可以是业务本身的优先级等。第二设备的优先级可以是分配资源的优先级，也可以是第二设备中传输的组播业务的优先级和/或传输业务的优先级等。被第二设备下存在的小区服务的终端的信息可以参照第一终端的信息的描述，第二设备的设备标识、位置信息、能力信息也可参照第一终端的设备标识、位置信息、能力信息的描述，在此不再赘述。业务的业务标识信息用于标识该业务，以第一业务进行举例说明，该第一业务的业务标识信息可以是第一业务对应的应用的标识信息，也可以是TMGI或service ID，或者第一业务所对应的用于调度一组终端接收第一业务的无线网络标识(例如，G-RNTI)，或者在传输第一业务的PDU会话中用于标识PDU会话的标识信息等。当第一业务为组播业务中的第一组播业务时，该第一组播业务的业务标识信息还可包括在传输第一组播业务的组播会话中用于标识组播会话的标识信息(例如，组播业务为MBS时，组播会话的标识信息可以是MBS session的标识信息)等。
本申请对于以上信息均不作限定，以上信息中的某一些信息，例如：业务的优先级、组播业务的优先级、第二设备的设备标识、位置信息、能力信息和被第二设备下存在的小区服务的终端的信息等，可用于获取第二设备的优先级。设备标识可用于标识第二设备，业务的业务标识信息可用于标识业务，组播业务的业务标识信息可用于标识组播业务；业务的优先级、组播业务的优先级和第二设备的优先级均影响资源的分配顺序；已分配的资源，和/或待分配的资源，和/或剩余的资源可影响组播业务的资源的分配数量；被第二设备下存在的小区服务的终端的信息也可影响第二设备的资源分配。可以理解，第三设备可基于第七请求中的信息为第二设备分配资源，提高了资源分配的准确率。
本申请对于步骤S101的执行条件不做限定，第七请求可以是第二设备每间隔一段时间向第三设备发送的，也可以是在第二设备所传输的组播业务在满足一个约束条件时向第三设备发送的。上述的时间和约束条件可参照步骤S501的描述，在此不再赘述。
可选的，S1202：第二设备向第三设备发送第七指示信息。
在本申请实施例中，第七指示信息可用于指示第二设备所占用的未分配的资源。该资源可以是未分配给第二设备的资源，也可以是未分配给某一业务或某一组播业务的资源等，在此不做限定。可以理解，在第二设备传输的组播业务的优先级高，或者紧急状态时，第二设备可在优先占用部分未分配的资源之后，向第三设备发送第七指示信息。如此，第三设备通过第七指示信息，避免使用第二设备中占用的资源，从而避免第二设备和第三设备之间产生干扰，提高了资源利用率，便于提高服务质量。
本申请对于第七指示信息不做限定，可包括第二设备所占用的未分配的资源，也可包括第二设备的其他资源信息，例如：第二设备传输所有的业务使用的资源；第二设备传输所有的组播业务使用的资源；第二设备传输每一组播业务使用的资源；第二设备已分配的资源；第二设备或待分配/剩余的资源；第二设备的资源使用情况等。第七指示信息还可包括第二设备的信息，例如，第二设备上传输的组播业务对应的业务标识信息；第二设备上传输的业务对应的业务标识信息；组播业务的优先级；业务的优先级；第二设备的设备标识；第二设备的优先级；第二设备的位置信息；第二设备的能力信息；被第二设备下存在的小区服务的终端的信息等。
S1203：第三设备获取/评估第三设备的第四信息。
在本申请实施例中，第四信息可包括以下信息中的至少一项：第三设备传输业务所使用的资源和/或剩余的资源；第三设备传输组播业务所使用的资源和/或剩余的资源；第三设备已 分配的资源和/或未分配的资源；在第三设备的小区上所驻留和/或所接入的终端中可优化的资源等资源信息，在此不做限定。
第三设备的待分配资源可包括第三设备剩余的资源、未分配的资源和可优化的资源等。在本申请实施例中，第四信息可统计所有的业务对应的资源信息，可按照不同的业务和/或不同的组播业务进行资源统计，或者指定的业务和/或组播业务进行资源统计，还可按照第三设备下存在的小区提供的组播业务进行资源统计等，在此不做限定。
本申请对于第四信息的获取/评估方法不做限定，可以是第三设备统计自身的资源使用情况获取，也可以对所驻留于/所接入第三设备的终端的信道状态信息或测量结果进行评估，以得到终端的信道质量，从而确定是否存在可优化的资源等。可以理解，在终端的信道质量良好时，可通过提高码率，节约资源，从而根据评估的信道质量，获取可优化的资源。
步骤S1203可以是第三设备每隔一段时间，获取第三设备传输组播业务的第四信息，或者是组播控制单元(或第二设备)每间隔一段时间，请求第三设备向组播控制单元上报的资源信息。也可以是第三设备传输的组播业务在满足一个约束条件时，或者可以是第二设备传输的组播业务在满足一个约束条件时，向第三设备上报，从而执行步骤S1203，上述的时间和约束条件可参照步骤S501的描述，在此不再赘述。还可以是基于步骤S1201中的第七请求，或步骤S1202中的第七指示信息来执行步骤S1203的等，在此不做限定。
可选的，S1204：第三设备向第二设备发送第八请求。
在本申请实施例中，第八请求用于获取第二设备的资源信息。该第八请求可以是资源统计请求(例如，resource information request等)，可用于获取第二设备传输组播业务的资源信息。该第八请求可指明第二设备的资源信息的内容，以及描述资源信息的表述方式(例如，bitmap图)等，在此不做限定。该第八请求可以是第三设备每隔一段时间，获取第三设备传输组播业务的第四信息，也可以是第三设备传输的组播业务在满足一个约束条件时，或者可以是第二设备传输的组播业务在满足一个约束条件时，向第三设备上报，从而执行步骤S1204等，上述的时间和约束条件可参照步骤S501的描述，在此不再赘述。该第八请求还可以在步骤S1203中第三设备确定存在剩余资源或可优化资源时，向第二设备发送的。
可选的，S1205：第二设备向第三设备发送第五信息。
在本申请实施例中，第五信息可包括第二设备的资源信息，例如：第二设备传输所有的业务使用的资源；第二设备传输所有的组播业务使用的资源；第二设备传输每一组播业务使用的资源；第二设备已分配的资源；第二设备或待分配/剩余的资源；第二设备的资源使用情况等。第五信息还可包括第二设备的信息，例如，第二设备上传输的组播业务对应的业务标识信息；第二设备上传输的业务对应的业务标识信息；组播业务的优先级；业务的优先级；第二设备的设备标识；第二设备的优先级；第二设备的位置信息；第二设备的能力信息；被第二设备下存在的小区服务的终端的信息等，在此不做限定。第五信息如前第七请求中描述的第二设备的资源信息，第三设备可通过以上信息进行资源分配，便于提高资源分配的准确率。
第五信息可统计所有的业务中已使用/待分配/剩余的资源，或者可统计不同的业务或组播业务中已使用/待分配/剩余的资源，或者可统计指定业务或组播业务中已使用/待分配/剩余的资源等，也可以第二设备下存在的小区为单元，统计该小区内已使用/待分配/剩余的资源，或者以第二设备下的接入网设备为单元，统计该小区内已使用/待分配/剩余的资源等，还可按照业务或组播业务的优先级进行资源统计等，在此不做限定。
本申请对于步骤S1205的执行条件不做限定，可以是第二设备每隔一段时间，向第三设 备发送的，或者是组播控制单元(或第三设备)每间隔一段时间，请求第二设备向组播控制单元上报的资源信息。也可以是第二设备传输的组播业务在满足一个约束条件时，或者可以是第三设备传输的组播业务在满足一个约束条件时，向第二设备请求上报，从而执行步骤S1203等。还可以是基于步骤S1204中的第八请求执行的。在第二设备优先占用部分未分配资源时，第五信息可以携带于第七指示信息中，发送给第三设备。可以理解为，该方法在执行步骤S1202时，不再执行步骤S1205。
可选的，S1206：第三设备根据第四信息和/或第五信息获取第八指示信息。
其中，第八指示信息可用于指示第二设备按照与第三设备不同的时频资源进行业务传输，或组播业务传输，或者如何进行业务传输(例如，传输何种业务或组播业务，以单播PTP方式传输还是以多播PTM方式传输等)。本申请对于第八指示信息的获取方法不做限定，第八指示信息中的分配资源可以按照业务和/或组播业务和/或第二设备的优先级进行分配，便于提高业务的传输效率和频谱利用率，节省通信资源和能源，同时提高业务的通信质量，提高用户体验。第三设备可按照第四信息中已使用/待分配/剩余的资源进行分配。例如，剩余的资源多时，可向第二设备多分配一些时频资源等。第三设备可按照第五信息进行资源分配，得到第八指示信息。例如，第二设备的待分配的资源多时，可向该第二设备多分配一些时频资源等。第三设备也可按照第七指示信息进行资源分配，得到第八指示信息。例如，将第二设备占用的资源分配给第二设备，从而其他设备均不分配该资源等。
S1207：第三设备向第二设备发送第八指示信息。
本申请对于步骤S1207的执行条件不做限定，可以是在步骤S1206之后，向第二设备发送的，或者是组播控制单元(或第三设备)每间隔一段时间，请求第二设备向组播控制单元上报的资源信息。也可以是第二设备传输的组播业务在满足一个约束条件时，或者可以是第三设备传输的组播业务在满足一个约束条件时，向第二设备请求上报，从而执行步骤S1203等。还可以是基于步骤S1204中的第八请求执行的。在第二设备优先占用部分未分配资源时，第五信息可以携带于第七指示信息中，发送给第三设备。可以理解为，该方法在执行步骤S1202时，不再执行步骤S1205。
可选的，S1208：第二设备向第三设备发送第三确认信息。
其中，该第三确认信息可用于指示已接收到第八指示信息，或可用于指示第二设备已按照第八指示信息中分配的资源传输组播业务。
在图12所示的方法中，在第三设备的覆盖范围包括第二设备的覆盖范围，且第三设备和第二设备之间的频率相同时，在第三设备获取第三设备传输组播业务的第四信息之后，向第二设备发送第八指示信息，从而指示第二设备按照与第三设备不同的时频资源传输组播业务，可避免第三设备对第二设备产生干扰，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
与图5和图7所示的实施例一致，请参照图13，图13为本申请实施例提出的第七种组播业务处理方法的流程示意图。在实施该方法之前，第三设备不进行组播业务的传输。如图13所示，该方法应用于第二设备，包括以下步骤S1301和S1302，其中：
S1301：第二设备向第一设备发送第一终端的信息。
其中，第一设备为第三设备或组播控制单元。第二设备可包括至少一个小区，且可用于传输组播业务，第一终端被第二设备包括的至少一个小区服务，且第一终端可包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。
S1302：第二设备从第一设备接收第一指示信息。
其中，第一指示信息可用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且第三设备可用于传输组播业务。
在一种可能的示例中，第一指示信息可包括第一时间信息，其中，第一时间信息可用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。如此，通过第一时间信息指示第三设备开始传输组播业务的时间，和/或第二设备停止传输业务的时间，可避免组播业务中断，便于提高服务质量。
在一种可能的示例中，第一终端的信息可包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。如此，通过以上不同的第一终端的信息可获取不同限定条件下的第一终端的数量，可便于提高组播业务的传输效率和频谱利用率，节省通信资源和能源，保证组播服务质量，提高用户体验。
在一种可能的示例中，第三设备的覆盖范围包括第二设备的覆盖范围。如此，在不同情况下，第二设备和第三设备可以分别或者共同为，同一个终端提供无线通信服务，提高了接入网设备及业务部署灵活性，提高了频谱利用率，提高网络覆盖率，提升网络容量。
在一种可能的示例中，在步骤S1302之后，图13所示的方法还包括：第二设备发送第五指示信息，第五指示信息用于指示第五终端重选至第三设备，第五终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。如此，第五终端基于第五指示信息重选至第三设备，可接收第三设备传输的组播业务，避免了组播业务中断，便于提高服务质量。
在一种可能的示例中，第五指示信息可以包括以下中的至少一项：第三设备的标识信息；第三设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第一配置信息；第二设备停止传输组播业务的指示信息。如此，第五终端可基于以上不同的第五指示信息重选至第三设备，可提高重选的准确率。
在图13所示的方法中，在第三设备不进行组播业务的传输之后，第二设备向第一设备发送第一终端的信息，并接收第一设备发送的用于指示第一设备或第三设备传输组播业务的第一指示信息。如此，第二设备可通过第一指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
与图5和图8所示的实施例一致，请参照图14，图14为本申请实施例提出的第八种组播业务处理方法的流程示意图。在实施该方法之前，第三设备进行组播业务的传输。如图14所示，该方法应用于第二设备，包括以下步骤S1401，其中：
S1401：第二设备从第一设备接收第三指示信息。
其中，第一设备为第三设备或组播控制单元。第三指示信息可用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务。第三指示信息是在第一设备接收到第二终端的信息之后接收到的，第二设备可包括至少一个小区，且可用于传输组播业务。第三设备为接入网设备，且可用于传输组播业务。第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。
在一种可能的示例中，第三指示信息可包括第二时间信息，其中，第二时间信息可用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息可用于指示第二设备开始传输组播业务的时间。如此，通过第三时间信息指示第二设备开始传输组播业务的时 间，和/或第三设备停止传输组播业务的时间，可避免组播业务中断，便于提高服务质量。
在一种可能的示例中，第一设备为第三设备，第二终端的信息可包括第二终端向第一设备发送的第三终端的信息，和/或，第二设备向第一设备发送的第四终端的信息，其中，第三终端为第二终端包括的至少一个终端，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。通过以上两种方式向第三设备发送第二终端的信息，可避免数据遗漏。
在一种可能的示例中，第二终端的信息可包括以下中的至少一项：第二终端正在接收组播业务，和/或感兴趣的组播业务的业务标识信息、第二终端的位置信息、第二终端的信道状态信息。如此，通过以上不同的第二终端的信息可获取不同限定条件下的第二终端的数量，可便于提高组播业务的传输效率和频谱利用率，节省通信资源和能源，保证组播服务质量，提高用户体验。
在图14所示的方法中，在第三设备进行组播业务的传输时，第二设备从第一设备接收用于指示第一设备或第三设备停止传输组播业务，和/或第二设备传输组播业务的第三指示信息。如此，第二设备可通过第三指示信息与第三设备协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的装置。
请参见图15，图15是本申请实施例提供的一种通信装置的结构示意图。在一种可能的示例中，该通信装置可以为第一设备，包括：
接收单元1501，用于从第二设备接收第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端；
发送单元1502，用于向第二设备发送第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。
可选的，第一终端的信息用于指示第一终端包括的至少一个终端的数量；发送单元1502具体用于若满足第一条件，则向第二设备发送第一指示信息，第一条件包括至少一个终端的数量大于或等于第一阈值；和/或第一条件包括，第一终端中被第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值；和/或第一条件包括，第二设备包括的至少一个接入网设备的数量大于或等于第三阈值。
可选的，第一指示信息包括第一时间信息，第一时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。
可选的，第一设备为组播控制单元，发送单元1502还用于向第三设备发送第二指示信息，第二指示信息用于指示第三设备传输组播业务，和/或第二设备停止传输组播业务。
可选的，第一终端的信息包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，发送单元1502还用于向第二设备发送第一请求。
可选的，接收单元1501还用于接收第二设备发送的第一响应信息。
可选的，第一设备为组播控制单元，该组播控制单元还包括处理单元(图15中未示出)，用于确定是否满足第一条件。
在另一种可能的示例中，该通信装置可以为第一设备，包括：
接收单元1501用于接收第二终端的信息，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端，第三设备为接入网设备，且用于传输组播业务；
发送单元1502用于向第二设备发送第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第二设备包括至少一个小区，且用于传输组播业务。
可选的，第二终端的信息用于指示第二终端包括的至少一个终端的数量；通信单元具体用于若满足第二条件，向第二设备发送第三指示信息，第二条件包括至少一个终端的数量小于或等于第四阈值；和/或第二条件包括，第二终端中被第二设备服务的至少一个终端的数量大于或等于第五阈值。
可选的，第二终端的信息用于指示第二终端包括的至少一个终端的数量；通信单元具体用于若满足第二条件，向第二设备发送第三指示信息，第二条件包括至少一个终端的数量小于或等于第四阈值；和/或第二条件包括，第二设备包括的至少一个接入网设备的数量均小于或等于第六阈值。
可选的，第三指示信息包括第二时间信息，第二时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息用于指示第二设备开始传输组播业务的时间。
可选的，第一设备为组播控制单元，发送单元1502还用于向第三设备发送第四指示信息，第四指示信息用于指示第三设备停止传输组播业务，和/或第二设备传输组播业务。
可选的，第一设备为第三设备，接收单元1501具体用于从第二终端接收第三终端的信息，第三终端为第二终端包括的至少一个终端；和/或从第二设备接收第四终端的信息，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可选的，第二终端的信息包括以下中的至少一项：第二终端的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，第一设备为第三设备，发送单元1502还用于发送第六指示信息，第六指示信息用于指示第六终端重选至第二设备，第六终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。
可选的，第六指示信息可以包括以下任意一项或多项：第二设备的标识信息；第二设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第二配置信息；第三设备停止传输组播业务的指示信息。
可选的，第一设备为组播控制单元，发送单元1502还用于向第三设备发送第五请求。
可选的，第一设备为组播控制单元，接收单元1501还用于接收第三设备发送的第三响应信息。
可选的，第一设备为第三设备，发送单元1502还用于向第三设备的覆盖范围内的终端，发送第六请求。
可选的，第一设备为第三设备，接收单元1501还用于接收来自第三设备的覆盖范围内的终端的第三信息。
可选的，第一设备为第三设备，通信装置还包括处理单元(图15中未示出)，用于获取第二终端的信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，接收单元1501还用于接收第二设备发送的第七请求。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，接收单元1501还用于接收第二设备发送的第七指示信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理单元，还用于获取/评估第三设备的第四信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第二设备发送第八请求。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，接收单元1501还用于接收第二设备发送的第五信息。
可选的，处理单元还用于根据第四信息和/或第五信息获取第八指示信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第二设备发送第八指示信息。
在另一种可能的示例中，该通信装置可以为第二设备，包括：
发送单元1502用于向第一设备发送第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端；
接收单元1501用于从第一设备接收第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。
可选的，第一指示信息包括第一时间信息，第一时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。
可选的，第一终端的信息包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，发送单元1502还用于发送第五指示信息，第五指示信息用于指示第五终端重选至第三设备，第五终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。
可选的，第五指示信息可以包括以下任意一项或多项：第三设备的标识信息；第三设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第一配置信息；第二设备停止传输组播业务的指示信息。
可选的，接收单元1501还用于接收第一设备发送的第一请求。
可选的，发送单元1502还用于向第一设备发送第一响应消息。
可选的，发送单元1502还用于向第二设备的覆盖范围内的终端，发送第二请求。
可选的，接收单元1501还用于接收第二设备的覆盖范围内的终端发送的第一信息。
可选的，通信装置还包括处理单元(图15中未示出)，用于获取第一终端的信息。
在另一种可能的示例中，该通信装置可以为第二设备，包括：
接收单元1501用于从第一设备接收第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第三指示信息是在第一设备接收到第二终端的信息之后接收到的，第二设备包括至少一个小区，且用于传输组播业务，第三设备为接入网设备，且用于传输组播业务，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。
可选的，第三指示信息包括第二时间信息，第二时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息用于指示第二设备开始传输组播业务的时间。
可选的，第一设备为第三设备，第二终端的信息包括第二终端向第一设备发送的第三终端的信息，和/或，第二设备向第一设备发送的第四终端的信息，第三终端为第二终端包括的至少一个终端，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可选的，第二终端的信息包括以下中的至少一项：第二终端的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，接收单元1501还用于接收第三设备发送的第二确认信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第三设备发送第七请求。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第三设备发送第七指示信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，接收单元1501还用于接收第三设备发送的第八请求。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第三设备发送第五信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，接收单元1501还用于接收第三设备发送的第八指示信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，发送单元1502还用于向第三设备发送第三确认信息。
需要说明的是，各个单元的实现还可以对应参照图5、图6、图7、图8、图9和图12所示的方法实施例的相应描述。
请参见图16，图16是本申请实施例提供的另一种通信装置，该通信装置包括处理器1601和处理器1601耦合的存储器1602。
存储器1602可以是具有存储功能的装置，包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器1602用于相关计算机程序及侧行数据。通信接口1603用于接收和发送侧行数据。
处理器1601可以是具有处理功能的装置，可以包括一个或者多个处理器。处理器可以是通用处理器或者专用处理器等。处理器可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置进行控制，执行软件程序，处理软件程序的数据。
在一种可能的示例中，该通信装置可以为第一设备，第一设备中的处理器1601用于读取存储器1602中存储的计算机程序代码，执行以下操作：
从第二设备接收第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端和/或对组播业务感兴趣的至少一个终端；
向第二设备发送第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。
可选的，第一终端的信息用于指示第一终端包括的至少一个终端的数量；处理器1601具 体用于执行以下操作：若满足第一条件，向第二设备发送第一指示信息，第一条件包括至少一个终端的数量大于或等于第一阈值；和/或第一条件包括，第一终端中被第二设备包括的每一小区服务的中终端的数量均小于或等于第二阈值；和/或第二设备包括至少一个接入网设备，第一条件包括至少一个接入网设备的数量大于或等于第三阈值。
可选的，第一指示信息包括第一时间信息，第一时间信息用于指示第一设备或第三设备开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。
可选的，第一设备为组播控制单元，处理器1601还用于执行以下操作：向第三设备发送第二指示信息，第二指示信息用于指示第三设备传输组播业务，和/或第二设备停止传输组播业务。
可选的，第一终端的信息包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，处理器1601还用于执行以下操作：向第二设备发送第一请求。
可选的，处理器1601还用于执行以下操作：接收第二设备发送的第一响应信息。
可选的，第一设备为组播控制单元，处理器1601还用于执行以下操作：确定是否满足第一条件。
在另一种可能的示例中，该通信装置可以为第一设备，第一设备中的处理器1601用于读取存储器1602中存储的计算机程序代码，执行以下操作：
接收第二终端的信息，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端，第三设备为接入网设备，且用于传输组播业务；
向第二设备发送第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第二设备包括至少一个小区，且用于传输组播业务。
可选的，第二终端的信息用于指示第二终端包括的至少一个终端的数量；处理器1601具体用于执行以下操作：若满足第二条件，第一设备向第二设备发送第三指示信息，第二条件包括至少一个终端的数量小于或等于第四阈值；和/或第二条件包括，第二终端中被第二设备服务的至少一个终端的数量大于或等于第五阈值；和/或第二设备包括至少一个接入网设备，第二条件包括至少一个接入网设备的数量均小于或等于第六阈值。
可选的，第三指示信息包括第二时间信息，第二时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息用于指示第二设备开始传输组播业务的时间。
可选的，第一设备为组播控制单元，处理器1601还用于执行以下操作：向第三设备发送第四指示信息，第四指示信息用于指示第三设备停止传输组播业务，和/或第二设备传输组播业务。
可选的，第一设备为第三设备，处理器1601具体用于执行以下操作：从第二终端接收第三终端的信息，第三终端为第二终端包括的至少一个终端；和/或从第二设备接收第四终端的信息，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可选的，第二终端的信息包括以下中的至少一项：第二终端的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，第一设备为第三设备，处理器1601还用于执行以下操作：发送第六指示信息， 第六指示信息用于指示第六终端重选至第二设备，第六终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。
可选的，第六指示信息可以包括以下任意一项或多项：第二设备的标识信息；第二设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第二配置信息；第三设备停止传输组播业务的指示信息。
可选的，第一设备为组播控制单元，处理器1601还用于执行以下操作：向第三设备发送第五请求。
可选的，第一设备为组播控制单元，处理器1601还用于执行以下操作：接收第三设备发送的第三响应信息。
可选的，第一设备为第三设备，处理器1601还用于执行以下操作：向第三设备的覆盖范围内的终端，发送第六请求。
可选的，第一设备为第三设备，处理器1601还用于执行以下操作：接收来自第三设备的覆盖范围内的终端的第三信息。
可选的，第一设备为第三设备，处理器1601还用于执行以下操作：获取第二终端的信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：接收第二设备发送的第七请求。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：接收第二设备发送的第七指示信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：获取/评估第三设备的第四信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第二设备发送第八请求。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：接收第二设备发送的第五信息。
可选的，处理器1601还用于执行以下操作：根据第四信息和/或第五信息获取第八指示信息。
可选的，第一设备为第三设备，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第二设备发送第八指示信息。
在另一种可能的示例中，该通信装置可以为第二设备，第二设备中的处理器1601用于读取存储器1602中存储的计算机程序代码，执行以下操作：
向第一设备发送第一终端的信息，第二设备包括至少一个小区，且用于传输组播业务，第一终端被至少一个小区服务，且第一终端包括接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端；
从第一设备接收第一指示信息，第一指示信息用于指示第一设备或第三设备传输组播业务，第三设备为接入网设备，且用于传输组播业务。
可选的，第一指示信息包括第一时间信息，第一时间信息用于指示第一设备或第三设备 开始传输组播业务的时间，和/或，第一时间信息用于指示第二设备停止传输组播业务的时间。
可选的，第一终端的信息包括以下中的至少一项：第一终端的组播业务的业务标识信息；第一终端的位置信息；第一终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，处理器1601还用于执行以下操作：发送第五指示信息，第五指示信息用于指示第五终端重选至第三设备，第五终端位于第二设备和第三设备的覆盖范围内，且接收组播业务和/或对组播业务感兴趣。
可选的，第五指示信息可以包括以下任意一项或多项：第三设备的标识信息；第三设备的组播业务的配置信息；第三设备和第二设备的频点优先级的第一配置信息；第二设备停止传输组播业务的指示信息。
可选的，处理器1601还用于执行以下操作：接收第一设备发送的第一请求。
可选的，处理器1601还用于执行以下操作：向第一设备发送第一响应消息。
可选的，处理器1601还用于执行以下操作：向第二设备的覆盖范围内的终端，发送第二请求。
可选的，处理器1601还用于执行以下操作：接收第二设备的覆盖范围内的终端发送的第一信息。
在另一种可能的示例中，该通信装置可以为第二设备，第二设备中的处理器1601用于读取存储器1602中存储的计算机程序代码，执行以下操作：
从第一设备接收第三指示信息，第三指示信息用于指示第一设备或第三设备停止传输组播业务，和/或，指示第二设备传输组播业务，第三指示信息是在第一设备接收到第二终端的信息之后接收到的，第二设备包括至少一个小区，且用于传输组播业务，第三设备为接入网设备，且用于传输组播业务，第二终端被第三设备服务，且第二终端包括从第三设备接收组播业务的至少一个终端，和/或对组播业务感兴趣的至少一个终端。
可选的，第三指示信息包括第二时间信息，第二时间信息用于指示第一设备或第三设备停止传输组播业务的时间，和/或，第二时间信息用于指示第二设备开始传输组播业务的时间。
可选的，第一设备为第三设备，第二终端的信息包括第二终端向第一设备发送的第三终端的信息，和/或，第二设备向第一设备发送的第四终端的信息，第三终端为第二终端包括的至少一个终端，第四终端为第二终端包括的至少一个终端中除了第三终端之外的终端。
可选的，第二终端的信息包括以下中的至少一项：第二终端的组播业务的业务标识信息；第二终端的位置信息；第二终端的信道状态信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围。
可选的，处理器1601还用于执行以下操作：接收第三设备发送的第二确认信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第三设备发送第七请求。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第三设备发送第七指示信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：接收第三设备发送的第八请求。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第三设备发送第五信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频 率相同，处理器1601还用于执行以下操作：接收第三设备发送的第八指示信息。
可选的，第三设备的覆盖范围包括第二设备的覆盖范围，第二设备和第三设备之间的频率相同，处理器1601还用于执行以下操作：向第三设备发送第三确认信息。
需要说明的是，各个操作的实现还可以对应参照图5、图7、图8、图9和图12所示的方法实施例的相应描述。
本申请实施例还提供了一种通信装置，用于执行上述各实施例中任一实施例中涉及第一设备或第二设备的任意方法和功能。
需要说明的是，上述的通信装置可以是接入网设备，也可以是应用于接入网设备中的芯片或者其他可实现上述设备功能的组合器件、部件等。当通信装置是接入网设备时接收单元可以是接收器，发送单元可以是发送器，接收单元和发送单元也可以是整合的收发器、天线或射频电路等，处理单元可以是处理器，例如基带芯片等。当通信装置是具有上述设备功能的部件时，接收单元和发送单元可以是整合的射频单元，处理单元可以是处理器。当通信装置是芯片系统时，接收单元可以是芯片系统的输入接口，发送单元可以是芯片系统的输出接口、处理单元可以是芯片系统的处理器，例如：中央处理单元(central processing unit，CPU)。
本申请实施例还提供一种通信系统，该系统包括上述任一实施例中涉及的至少一个第一设备和至少一个第二设备。
本申请实施例还提供一种芯片系统，芯片系统包括至少一个处理器，存储器和接口电路，存储器、接口电路和至少一个处理器通过线路互联，至少一个存储器中存储有计算机程序；计算机程序被处理器执行时，图5、图6、图7、图8、图9和图12所示的方法流程得以实现。
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序，当其在通信装置上运行时，图5、图6、图7、图8、图9和图12所示的方法流程得以实现。
本申请实施例还提供一种计算机程序产品，当计算机程序产品在通信装置上运行时，图5、图6、图7、图8、图9和图12所示的方法流程得以实现。
综上，通过实施本申请实施例，第二设备和/或第三设备分别获取其覆盖范围内正在接收组播业务和/或对组播业务感兴趣的终端的信息，然后依据指示第二设备和/或第三设备是否传输组播业务的指示信息，协同传输组播业务，提高了组播业务的传输效率和频谱利用率，节省通信资源和能源，同时提高组播业务的通信质量，提高用户体验。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，该流程可以由计算机程序来计算机程序相关的硬件完成，该计算机程序可存储于计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法实施例的流程。而前述的存储介质包括：ROM或随机存储记忆体RAM、磁碟或者光盘等各种可存储计算机程序代码的介质。

Claims (31)

  1. 一种组播业务处理方法，其特征在于，包括：
    第一设备从第二设备接收第一终端的信息，其中，所述第二设备包括至少一个小区，且用于传输组播业务，所述第一终端被所述至少一个小区服务，且所述第一终端包括接收所述组播业务的至少一个终端，和/或对所述组播业务感兴趣的至少一个终端；
    所述第一设备向所述第二设备发送第一指示信息，其中，所述第一指示信息用于指示所述第一设备或第三设备传输所述组播业务，所述第三设备为接入网设备，且用于传输所述组播业务。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端的信息用于指示所述第一终端包括的至少一个终端的数量；所述第一设备向所述第二设备发送第一指示信息，具体包括：
    若满足第一条件，所述第一设备向所述第二设备发送所述第一指示信息，其中，所述第一条件包括所述至少一个终端的数量大于或等于第一阈值；
    和/或
    所述第一条件包括，所述第一终端中被所述第二设备包括的每一小区服务的终端的数量均小于或等于第二阈值；
    和/或
    所述第二设备包括至少一个接入网设备，所述第一条件包括所述至少一个接入网设备的数量大于或等于第三阈值。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一指示信息包括第一时间信息，所述第一时间信息用于指示所述第一设备或所述第三设备开始传输所述组播业务的时间，和/或，所述第一时间信息用于指示所述第二设备停止传输所述组播业务的时间。
  4. 根据权利要求2所述的方法，其特征在于，所述第一设备为组播控制单元，所述方法还包括：
    所述第一设备向所述第三设备发送第二指示信息，其中，所述第二指示信息用于指示所述第三设备传输所述组播业务，和/或所述第二设备停止传输所述组播业务。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述第一终端的信息包括以下中的至少一项：
    所述第一终端的所述组播业务的业务标识信息；
    所述第一终端的位置信息；
    所述第一终端的信道状态信息。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述第三设备的覆盖范围包括所述第二设备的覆盖范围。
  7. 一种组播业务处理方法，其特征在于，包括：
    第一设备接收第二终端的信息，其中，所述第二终端被第三设备服务，且所述第二终端包括从所述第三设备接收组播业务的至少一个终端，和/或对所述组播业务感兴趣的至少一个终端，所述第三设备为接入网设备，且用于传输所述组播业务；
    所述第一设备向第二设备发送第三指示信息，其中，所述第三指示信息用于指示所述第一设备或所述第三设备停止传输所述组播业务，和/或，指示所述第二设备传输所述组播业务，所述第二设备包括至少一个小区，且用于传输所述组播业务。
  8. 根据权利要求7所述的方法，其特征在于，所述第二终端的信息用于指示所述第二终 端包括的至少一个终端的数量；所述第一设备向所述第二设备发送第三指示信息，具体包括：
    若满足第二条件，所述第一设备向所述第二设备发送所述第三指示信息，其中，所述第二条件包括所述至少一个终端的数量小于或等于第四阈值；
    和/或
    所述第二条件包括，所述第二终端中被所述第二设备服务的至少一个终端的数量大于或等于第五阈值；
    和/或
    所述第二设备包括至少一个接入网设备，所述第二条件包括所述至少一个接入网设备的数量均小于或等于第六阈值。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第三指示信息包括第二时间信息，所述第二时间信息用于指示所述第一设备或所述第三设备停止传输所述组播业务的时间，和/或，所述第二时间信息用于指示所述第二设备开始传输所述组播业务的时间。
  10. 根据权利要求8所述的方法，其特征在于，所述第一设备为组播控制单元，所述方法还包括：
    所述第一设备向所述第三设备发送第四指示信息，其中，所述第四指示信息用于指示所述第三设备停止传输所述组播业务，和/或所述第二设备传输所述组播业务。
  11. 根据权利要求7-10任一项所述的方法，其特征在于，所述第一设备为所述第三设备，所述接收所述第二终端的信息，包括：
    所述第一设备从所述第二终端接收第三终端的信息，其中，所述第三终端为所述第二终端包括的至少一个终端；
    和/或
    所述第一设备从所述第二设备接收第四终端的信息，其中，所述第四终端为所述第二终端包括的至少一个终端中除了所述第三终端之外的终端。
  12. 根据权利要求7-11任一项所述的方法，其特征在于，所述第二终端的信息包括以下中的至少一项：
    所述第二终端的所述组播业务的业务标识信息；
    所述第二终端的位置信息；
    所述第二终端的信道状态信息。
  13. 根据权利要求7-12任一项所述的方法，其特征在于，所述第三设备的覆盖范围包括所述第二设备的覆盖范围。
  14. 根据权利要求7-9或11-13任一项所述的方法，其特征在于，所述第一设备为所述第三设备，在所述第一设备向第二设备发送第三指示信息之后，所述方法还包括：
    所述第一设备发送第六指示信息，其中，所述第六指示信息用于指示第六终端重选至所述第二设备，所述第六终端位于所述第二设备和所述第三设备的覆盖范围内，且接收所述组播业务和/或对所述组播业务感兴趣。
  15. 根据权利要求14所述的方法，其特征在于，所述第六指示信息可以包括以下中的至少一项：
    所述第二设备的标识信息；
    所述第二设备的所述组播业务的配置信息；
    所述第三设备和所述第二设备的频点优先级的第二配置信息；
    所述第三设备停止传输所述组播业务的指示信息。
  16. 一种组播业务处理方法，其特征在于，包括：
    第二设备向第一设备发送第一终端的信息，其中，所述第二设备包括至少一个小区，且用于传输组播业务，所述第一终端被所述至少一个小区服务，且所述第一终端包括接收所述组播业务的至少一个终端，和/或对所述组播业务感兴趣的至少一个终端；
    所述第二设备从所述第一设备接收第一指示信息，其中，所述第一指示信息用于指示所述第一设备或第三设备传输所述组播业务，所述第三设备为接入网设备，且用于传输所述组播业务。
  17. 根据权利要求16所述的方法，其特征在于，所述第一指示信息包括第一时间信息，其中，所述第一时间信息用于指示所述第一设备或所述第三设备开始传输所述组播业务的时间，和/或，所述第一时间信息用于指示所述第二设备停止传输所述组播业务的时间。
  18. 根据权利要求16或17所述的方法，其特征在于，所述第一终端的信息包括以下中的至少一项：
    所述第一终端的所述组播业务的业务标识信息；所述第一终端的位置信息；所述第一终端的信道状态信息。
  19. 根据权利要求16-18任一项所述的方法，其特征在于，所述第三设备的覆盖范围包括所述第二设备的覆盖范围。
  20. 根据权利要求16-19任一项所述的方法，其特征在于，在所述第二设备从所述第一设备接收第一指示信息之后，所述方法还包括：
    所述第二设备发送第五指示信息，其中，所述第五指示信息用于指示第五终端重选至所述第三设备，所述第五终端位于所述第二设备和所述第三设备的覆盖范围内，且接收所述组播业务和/或对所述组播业务感兴趣。
  21. 根据权利要求20所述的方法，其特征在于，所述第五指示信息可以包括以下中的至少一项：
    所述第三设备的标识信息；
    所述第三设备的所述组播业务的配置信息；
    所述第三设备和所述第二设备的频点优先级的第一配置信息；
    所述第二设备停止传输所述组播业务的指示信息。
  22. 一种组播业务处理方法，其特征在于，包括：
    第二设备从第一设备接收第三指示信息，其中，所述第三指示信息用于指示所述第一设备或第三设备停止传输组播业务，和/或，指示所述第二设备传输所述组播业务，所述第三指示信息是在所述第一设备接收到第二终端的信息之后接收到的，所述第二设备包括至少一个小区，且用于传输所述组播业务，所述第三设备为接入网设备，且用于传输所述组播业务，所述第二终端被所述第三设备服务，且所述第二终端包括从所述第三设备接收所述组播业务的至少一个终端，和/或对所述组播业务感兴趣的至少一个终端。
  23. 根据权利要求22所述的方法，其特征在于，所述第三指示信息包括第二时间信息，所述第二时间信息用于指示所述第一设备或所述第三设备停止传输所述组播业务的时间，和/或，所述第二时间信息用于指示所述第二设备开始传输所述组播业务的时间。
  24. 根据权利要求22或23所述的方法，其特征在于，所述第一设备为所述第三设备，所述第二终端的信息包括所述第二终端向所述第一设备发送的第三终端的信息，和/或，所述第二设备向所述第一设备发送的第四终端的信息，其中，所述第三终端为所述第二终端包括的至少一个终端，所述第四终端为所述第二终端包括的至少一个终端中除了所述第三终端之 外的终端。
  25. 根据权利要求22-24任一项所述的方法，其特征在于，所述第二终端的信息包括以下中的至少一项：
    所述第二终端的所述组播业务的业务标识信息；
    所述第二终端的位置信息；
    所述第二终端的信道状态信息。
  26. 根据权利要求22-25任一项所述的方法，其特征在于，所述第三设备的覆盖范围包括所述第二设备的覆盖范围。
  27. 一种通信装置，其特征在于，包括如权利要求1-15中任一项所述的方法对应的接收单元和/或发送单元。
  28. 一种通信装置，其特征在于，包括如权利要求16-26中任一项所述的方法对应的接收单元和/或发送单元。
  29. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，其中，所述存储器用于存储一个或多个程序，所述一个或多个程序被所述处理器执行以执行如权利要求1-26中任一项所述的方法。
  30. 一种计算机可读存储介质，其特征在于，其用于存储计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-26任一项所述的方法。
  31. 一种通信系统，其特征在于，包括如权利要求27所述的通信装置和如权利要求28所述的通信装置。
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