WO2022237552A1 - 一种无线通信方法、装置及*** - Google Patents

一种无线通信方法、装置及*** Download PDF

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Publication number
WO2022237552A1
WO2022237552A1 PCT/CN2022/089775 CN2022089775W WO2022237552A1 WO 2022237552 A1 WO2022237552 A1 WO 2022237552A1 CN 2022089775 W CN2022089775 W CN 2022089775W WO 2022237552 A1 WO2022237552 A1 WO 2022237552A1
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WIPO (PCT)
Prior art keywords
identifier
paging
terminal
multicast service
paging occasion
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PCT/CN2022/089775
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English (en)
French (fr)
Inventor
项弘禹
李秉肇
陈磊
王燕
许斌
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华为技术有限公司
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Publication of WO2022237552A1 publication Critical patent/WO2022237552A1/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
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel

Definitions

  • the present application relates to the technical field of communication, and in particular to a wireless communication method, device and system.
  • Multimedia Broadcast Multicast Service or Multicast Broadcast Service (MBS) is a service for multiple user equipment (User equipment, UE), such as live broadcasting and scheduled program playback.
  • the base station sends MBS to multiple UEs at the same time.
  • the base station establishes a dedicated bearer for the multicast service, and all UEs interested in the service can receive the MBS through this bearer.
  • the network device When service data arrives, the network device needs to page the UE interested in the service data. Different UEs correspond to different paging occasions. In the MBS scenario, when the MBS data arrives, the network device needs to send a paging message at the paging opportunity corresponding to each UE to page each UE that needs to receive the MBS, so that the signaling overhead in the paging process is large.
  • Embodiments of the present application provide a communication method and a communication device, so as to reduce signaling overhead of a communication system.
  • a communication method In a first aspect, a communication method, a corresponding communication device, and a communication system are provided.
  • the communication method is used in a communication system including a first terminal and a network device.
  • Receive system information from the network device determine a paging occasion calculation identifier according to the system information, the paging occasion calculation identifier is an identifier of a terminal, or the paging occasion calculation identifier is an identifier indicating a multicast service; according to the The paging occasion calculation identifier determines a first paging occasion; receiving a paging message of a multicast service at the first paging occasion.
  • the first terminal determines that the paging occasion calculation identifier is the identifier of the first terminal or the identifier indicating the multicast service through the system information, and further determines the paging occasion according to the paging occasion calculation identifier, and in the paging Receive the paging message of the multicast service at the paging time.
  • the system information indicates the paging occasion calculation identifier for receiving the multicast paging message.
  • Receiving the multicast paging message at the paging occasion corresponding to the identifier of the first terminal is beneficial to reduce signaling overhead.
  • Receiving the multicast paging message at the corresponding paging occasion is beneficial to improving the utilization efficiency of paging resources.
  • an identifier of a terminal or an identifier indicating a multicast service is selected as the paging occasion calculation identifier according to system information. Based on the received system information, the first terminal judges which identifier is used to determine the paging occasion, and receives the paging message of the multicast service at the determined paging occasion, so that the first terminal can adapt to different paging The method and different access network devices improve the reliability of the paging process of the multicast service.
  • the determining the paging occasion calculation identifier according to the system information includes: if the system information includes system information related to multicast services, the paging occasion calculation identifier is the The identity of the terminal, or if the system information includes the first indication information, the paging occasion calculation identity is the identity of the terminal.
  • the system information includes multicast service-related system information, for example including MBS-related system information blocks (System Information Block, SIB), or when the system information includes first indication information, after receiving the system information, the first terminal, Determine the identity of the paging occasion calculation as the identity of the terminal, or select the identity of the terminal from the identity of the terminal and the identity indicating the multicast service as the identity of the paging occasion calculation, the identity of the terminal is, for example, UE_ID or the terminal device corresponding to the UE
  • the temporary identity (5G S-temporary mobile subscriber identity, 5G-S-TMSI), or the corresponding 5G globally unique temporary UE identity (5G Globally Unique Temporary UE Identity, 5G-GUTI) corresponding to the UE.
  • the determining the paging occasion calculation identifier according to the system information includes: if the system information does not include system information related to the multicast service, the paging occasion calculation identifier is the The identifier indicating the multicast service, or if the system information does not include the first indication information, the paging occasion calculation identifier is the identifier indicating the multicast service.
  • the system information is a collection of SIBs, and the first terminal determines the paging occasion according to the system information that does not include MBS-related SIBs.
  • the identifier indicating the multicast service is determined as the paging occasion calculation identifier.
  • the first terminal can determine the type of the access network device that sends the system information according to the system information, and when the received system information includes the first indication information or includes the MBS-related SIB, then
  • the network access device is an access network device that indicates multicast paging or supports group paging. For example, it can be called an MBS supporting node. Send a paging message of the multicast service to the terminal device at the paging opportunity.
  • the first terminal does not need to calculate a new paging occasion for receiving the paging of the multicast service, so the first terminal determines the paging occasion calculation
  • the identifier is the identifier of the terminal, and the paging occasion corresponding to the identifier is used to receive the paging message of the unicast service.
  • the access network device that sends the system information is an access network device that does not support multicast paging or does not support group paging, For example, it can be called non MBS supporting node or legacy node.
  • this type of access network equipment does not know whether the paging message sent to the first terminal this time is a multicast paging message or a unicast paging message, so in the paging message corresponding to the identifier indicating the multicast service Sending a paging message of the multicast service to the first terminal at an appropriate time.
  • the service identifier of the multicast service is, for example, a multicast broadcast service session identifier (Identifier of the MBS session, MBS session ID), or a multicast broadcast service service identifier (Identifier of the MBS service, MBS service ID). More options are provided for determining the paging occasion corresponding to the multicast paging message.
  • the first indication information is used to indicate that it is not necessary to determine a new paging occasion for receiving a paging message of a multicast service.
  • the new paging occasion refers to a paging occasion different from the paging occasion at which the terminal receives the unicast service paging message.
  • the new paging occasion refers to a paging occasion determined by using a new identifier other than the terminal identifier as the paging occasion to calculate the identifier.
  • the first indication information instructs the first terminal to receive the paging message of the multicast paging service at the unicast paging occasion where the unicast paging message is located.
  • the first terminal receives both the paging message of the unicast service and the paging message of the multicast service at the same paging opportunity, which reduces the paging power consumption of the terminal device receiving the multicast service overhead.
  • the first indication information is a reserved bit in the SIB, for example, 1 bit.
  • UE1 When 1 is set, UE1 is instructed to determine the identity of UE1 as the paging occasion calculation identity. When 0 is set, UE1 is instructed to determine the identity indicating the multicast service.
  • the first identifier is used as the identifier for paging occasion calculation, and of course, it can also be reversed. Or it can also be indicated by taking true/false.
  • the identifier may be indicated by whether the first indication information is included in the system information, and if the first indication information exists in the system information, UE1 is instructed to determine the identifier indicating the multicast service, that is, the first identifier as the paging occasion calculation identifier , if it does not exist, UE1 is instructed to determine the identity of UE1 as the identity for paging occasion calculation.
  • the system information is an existing type of SIB, or the system information is a newly constructed SIB.
  • the identifier indicating the multicast service is preconfigured; or the identifier indicating the multicast service is notified by network signaling; or the identifier indicating the multicast service is based on The service identifier of the multicast service is obtained.
  • the identifier indicating the multicast service may be pre-configured by the core network equipment to the first terminal in advance.
  • the multicast service identifier corresponds to the multicast service data to be received by the first terminal.
  • the network signaling may be broadcast signaling, non-access stratum (Non-Access Stratum, NAS) signaling or radio resource control (Radio Resource Control, RRC) signaling kind of.
  • what is obtained according to the service identifier of the multicast service may be determined according to the service identifier of the multicast service and a mapping relationship, where the mapping relationship refers to the correspondence between the MBS service identifier and the identifier indicating the multicast service.
  • the mapping relationship can be predefined by the protocol, or can be determined through the user service description (user service description, USD), or in the service announcement (service announcement) phase in the multicast data distribution process (phases of multicast data provisioning), UE Obtain the mapping relationship between the MBS and the identifier indicating the multicast service, or obtain the mapping relationship during the service joining (session join) stage in the multicast data distribution process.
  • the paging occasion calculation identifier is the identifier of the terminal, and the paging message of the multicast service includes the service identifier of the multicast service; or the paging occasion calculation The identifier is the identifier indicating the multicast service, and the paging message of the multicast service includes the identifier indicating the multicast service. .
  • the paging message of the multicast service includes the service identifier of the multicast service, for example, MBS session ID, which is used to notify UE1 that it is paged by the multicast service.
  • the paging occasion calculation identifier is the identifier indicating the multicast service
  • the paging message of the multicast service includes the identifier indicating the multicast service, for example, 5G-S-TMSI with a special value.
  • the multicast service is associated with a terminal set, the terminal set includes one or more terminals, the identifier of the terminal is an identifier of a terminal in the terminal set, and the paging occasion calculation identifier is the indicated multiple
  • the paging cycle corresponding to the first paging occasion is the first paging cycle, and the first paging cycle is the discontinuous reception (discontinuous reception) of one or more terminals in the terminal set. , the minimum value of DRX) cycle. .
  • the association between the terminal set and the multicast service means that the terminal devices in the terminal set are interested in the multicast service or need to receive the multicast service.
  • the first paging cycle is used for the access network device to periodically send paging messages of the multicast service.
  • the DRX cycle of the terminal devices in the terminal set is the cycle for receiving unicast service paging messages. Selecting the minimum value of the DRX cycle of the terminal devices in the set can ensure that all the terminal devices in the set can perform multicast service paging at this cycle. Receive call message.
  • the identifier indicating the multicast service is different from identifiers of one or more terminals in the terminal set.
  • the identifier indicating the multicast service is used for the calculation of the paging occasion of the multicast service by the access network equipment and the terminal equipment, and the indication is different from the identifiers of the UEs in the set to avoid conflicts in the calculation of the paging occasion.
  • the method further includes: the first terminal initiates a random access procedure, or the first terminal receives the multicast from the first network device in a disconnected state business.
  • the first terminal determines that it is paged by the multicast service according to the identifier indicating the multicast service or the service identifier of the multicast service carried in the paging message, and after determining that it is paged by the multicast service, the first terminal can further initiate a random access After the process is connected to the network, the multicast service is received; or the first terminal can directly receive the multicast service in a non-connected state.
  • a communication method, a corresponding communication device and a communication system are provided.
  • Sending system information where the system information includes first indication information, or the system information includes multicast service-related system information; determining a first paging occasion according to the identity of the first terminal; at the first paging occasion Sending a paging message of the multicast service to the first terminal.
  • receiving the multicast paging message at the paging opportunity corresponding to the identifier indicating the multicast service is beneficial to improving the utilization efficiency of paging resources, and can save the network device's cost of calculating the paging occasion of the multicast service.
  • the first indication information is used to indicate that it is not necessary to determine a new paging occasion for receiving a paging message of a multicast service.
  • the method further includes: receiving first information from a core network device, where the first information includes a service identifier of the multicast service and an identifier list of a terminal set, and the terminal A set is associated with the multicast service, and the terminal belongs to the set of terminals.
  • the first information is a next generation application message (Next Generation Application Protocol, NGAP), or the first information is a part of the NGAP message.
  • NGAP message is a message sent by the access and mobility management function (AMF) in the core network device to the network device.
  • AMF access and mobility management function
  • the core network device can notify the access network device of the set of terminal devices corresponding to the multicast service by sending the service identifier of the multicast service and the UE set list to the access network device, so that the access network device can perform multicast services on these UEs paging.
  • the first identification list may optionally be ⁇ UE1_ID, UE2_ID, ..., UEN_ID ⁇ , and the first identification list may also include the 5G-S-TMSI corresponding to each UE in the terminal set.
  • the first paging occasion is also used to send a paging message of a unicast service to the first terminal.
  • the paging message of the multicast service includes a service identifier of the multicast service.
  • the paging cycle corresponding to the first paging occasion is a discontinuous reception DRX cycle of the first terminal.
  • the method further includes: the terminal set further includes a second terminal, determining a second paging occasion according to the identity of the second terminal; The second terminal sends the paging message of the multicast service, wherein the paging cycle corresponding to the second paging occasion is the DRX cycle of the second terminal
  • a communication method, a corresponding communication device and a communication system are provided. Determine whether the network device supports multicast paging; when the network device supports multicast paging, send first information to the network device, the first information includes a service identifier of a multicast service and an identifier list of a set of terminals, the The set of terminals is associated with the multicast service; when the network device does not support multicast paging, sending second information to the network device, where the second information includes an identifier indicating the multicast service.
  • the method further includes: sending first signaling to the first terminal, where the first signaling includes the identifier indicating the multicast service.
  • the first signaling is one of broadcast signaling, NAS signaling or RRC signaling.
  • the identifier indicating the multicast service is different from the identifiers of the terminal devices in the terminal set.
  • the second information further includes a first paging cycle
  • the first paging cycle is a minimum value of DRX cycles of terminal devices in the terminal set.
  • a communication device may be the terminal device described in any one of the first to third aspects above, or an electronic device configured in the terminal device, or a larger device including the terminal device.
  • the terminal device includes corresponding means or modules for performing the above method.
  • the communication device includes a processing unit (also called a processing module sometimes) and a transceiver unit (also called a transceiver module sometimes).
  • the processing unit is configured to receive the first indication information from the second network device through the transceiver unit, and send the response information of the first indication information to the second network device through the transceiver module.
  • the communications apparatus includes: a processor, coupled to a memory, configured to execute instructions in the memory, so as to implement the method performed by the terminal device in any one of the first to third aspects above.
  • the communication device further includes other components, for example, an antenna, an input and output module, an interface, and the like. These components can be hardware, software, or a combination of software and hardware.
  • a communication device may be the access network device described in any one of the first to third aspects above.
  • the communication device has the functions of the above-mentioned access network equipment.
  • the access network equipment for example, a base station, or a baseband device in a base station.
  • the communication device includes a baseband device and a radio frequency device.
  • the communication device includes a processing unit (also called a processing module sometimes) and a transceiver unit (also called a transceiver module sometimes).
  • the processing unit is configured to send system information to the first terminal through the transceiver unit, and send a paging message of a multicast service to the first terminal through the transceiver module.
  • the communication device includes a processing unit, configured to be coupled to the storage unit, and execute programs or instructions in the storage unit, so as to enable the communication device to perform the functions of the access network device.
  • a communication device may be the core network device described in any one of the second to third aspects above.
  • the communication device has the functions of the above-mentioned core network equipment.
  • the communication device includes a baseband device and a radio frequency device.
  • the communication device includes a processing unit (also called a processing module sometimes) and a transceiver unit (also called a transceiver module sometimes).
  • the processing unit is configured to send the first information or the second information to the access network device through the transceiver unit, and may also send an identifier indicating a multicast service to the first terminal through the transceiver module.
  • the communication device includes a processing unit, configured to be coupled to the storage unit, and execute programs or instructions in the storage unit, so as to enable the communication device to perform the functions of the above-mentioned core network equipment.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store computer programs or instructions, and when executed, the terminal device, or the first network device, or the second A method performed by two network devices is implemented.
  • a computer program product containing instructions which enables the methods described in the above aspects to be implemented when it is run on a computer.
  • FIG. 1A is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 1B is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 1C is a schematic diagram of another application scenario of the embodiment of the present application.
  • FIG. 2 is a simplified schematic diagram of another communication system according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a service identification cell of a multicast service provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the paging occasion calculation identified as the first terminal in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of the paging occasion calculation flag in the embodiment of the present application as the flag indicating the multicast service;
  • FIG. 7 is another flow chart of the communication method provided by the embodiment of the present application.
  • FIG. 8 is another flow chart of the communication method provided by the embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a terminal device provided in an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the communication system includes a radio access network 100 and a core network 200 , and optionally, the communication system 1000 may also include the Internet 300 .
  • the radio access network 100 may include at least one network device (such as 110a and 110b in FIG. 1, collectively referred to as 110), and may also include at least one terminal (such as 120a-120j in FIG. 1, collectively referred to as 120).
  • the terminals 120a-120j are connected to the network devices 110a, 110b in a wireless manner, and the network devices 110a, 110b are connected to the core network 200 in a wireless or wired manner.
  • the network equipment in the core network and the network equipment in the radio access network can be different physical equipment, or the functions of the core network and the logical functions of the radio access network can be integrated on the same physical equipment, or it can be a physical equipment Part of the functions of the core network and part of the functions of the radio access network are integrated on the device. Terminals and network devices may be connected to each other in a wired or wireless manner.
  • FIG. 1 is only a schematic diagram.
  • the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the communication system may, for example, support a cellular system related to the 3rd generation partnership project (3GPP) (such as a 5G communication system, or a communication system that supports the fusion of multiple wireless technologies (such as 2G, 3G, 4G, or 5G integrated communication system), or a future-oriented evolution system (such as 6G access technology)), or a wireless fidelity (Wireless Fidelity, WiFi) system, or a communication system that integrates 3GPP-related cellular systems and other technologies, etc. .
  • 3GPP 3rd generation partnership project
  • 5G communication system such as a 5G communication system, or a communication system that supports the fusion of multiple wireless technologies (such as 2G, 3G, 4G, or 5G integrated communication system), or a future-oriented evolution system (such as 6G access technology)
  • a wireless fidelity (Wireless Fidelity, WiFi) system or a communication system that integrates 3GPP-related cellular systems and other technologies, etc.
  • the network device in this application is sometimes also referred to as a network node.
  • the network equipment includes access network equipment, and/or core network equipment.
  • the access network device has a wireless transceiver function for communicating with the terminal.
  • the access network equipment includes but is not limited to the base station (base station), evolved base station (evolved NodeB, eNodeB), transmission reception point (transmission reception point, TRP) in the above-mentioned communication system, and the next generation in the 5G mobile communication system Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also complete the base station part
  • a functional module or unit for example, may be a centralized unit (central unit, CU), or a distributed unit (distributed unit, DU).
  • the access network device may be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node or a donor node, or a cloud radio access network (cloud radio access network, CRAN) scenario wireless controller.
  • the access network device may also be a server, a wearable device, or a vehicle-mounted device.
  • the access network device in the V2X technology may be a road side unit (road side unit, RSU).
  • the access network device is described below by taking a base station as an example.
  • the multiple network devices in the communication system may be base stations of the same type, or base stations of different types.
  • the base station can communicate with the terminal, and can also communicate with the terminal through a relay station.
  • a terminal can communicate with multiple base stations in different access technologies.
  • the core network equipment is used to implement functions such as mobility management, data processing, session management, policy and charging.
  • the names of devices implementing core network functions in systems with different access technologies may be different, which is not limited in this application.
  • the core network equipment includes: access and mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), or user plane function (user plane function, UPF) Wait.
  • a terminal may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and/or terminals may be fixed or mobile. Base stations and/or terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the sky. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the roles of the base station and the terminal can be relative.
  • the helicopter or UAV 120i in FIG. base station for base station 110a, 120i is a terminal, that is, communication between 110a and 120i is performed through a wireless air interface protocol.
  • the device 110a and the device 120i may also communicate through an interface protocol between base stations, and at this time, relative to the device 110a, 120i is a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices.
  • 110a and 110b in FIG. 1 can be understood as communication devices with base station functions
  • 120a-120j in FIG. 1 can be understood as communication devices with terminal functions.
  • a communication device with a base station function may be a base station, or a module (such as a chip, or a chip system) in a base station, or a control subsystem including a base station function.
  • the control subsystem including the base station function may be a control center in application scenarios of the above-mentioned terminals such as smart grid, industrial control, smart transportation, or smart city.
  • a communication device having a terminal function may be a terminal, or a module in a terminal (such as a chip, a chip system, or a modem, etc.), or a device including a terminal function.
  • a base station or BS, a terminal or UE are taken as examples for description later.
  • the base station and the terminal include corresponding hardware modules, software modules, and/or firmware modules for performing various functions.
  • the application can be implemented in the form of hardware, software, or firmware, or any combination thereof.
  • the network devices in the radio access network may include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU).
  • a CU can control one or more DUs.
  • CU and DU can be divided according to the protocol layer functions of the wireless network they have. For example, the functions of the PDCP (packet data convergence protocol) layer and the above protocol layer are set in the CU, and the protocol layer below PDCP, such as the RLC (radio link control) layer. Functions such as the MAC (medium access control) layer are set in the DU.
  • PDCP packet data convergence protocol
  • RLC radio link control
  • Functions such as the MAC (medium access control) layer are set in the DU.
  • the radio frequency device can be remote, not placed in the DU, or integrated in the DU, or partially remote and partially integrated in the DU, which is not limited in this application.
  • the control plane (CP) and user plane (UP) of the CU can be set separately and implemented by different network entities, that is, the control plane CU entity (CU-CP entity) and user plane CU entity (CU-UP entity).
  • the signaling generated by the CU can be sent to the UE through the DU, or the signaling generated by the UE can be sent to the CU through the DU.
  • the DU can directly transmit the signaling to the UE or CU through protocol layer encapsulation without parsing the signaling.
  • a CU is classified as a network device on the RAN side.
  • a CU may also be classified as a network device on the CN side, which is not limited in this application.
  • the base station BS 110 includes an interface 111 and a processor 112.
  • the processor 112 is configured to execute the program 114 .
  • Processor 112 may store program 114, or obtain program 114 from other devices.
  • BS 110 includes memory 113.
  • the memory 113 is used to store the program 115 .
  • the program 115 may be pre-stored or subsequently loaded.
  • the terminal UE 120 includes an interface 121 and a processor 122.
  • the processor 122 is configured to execute a program 124 .
  • the processor 122 may store the program 124, or obtain the program 124 from other devices.
  • UE 120 may also optionally include memory 123.
  • the memory 123 is used to store the program 125 .
  • the program 125 may be pre-stored or subsequently loaded.
  • These components work together to provide various functions of UE 120 and/or BS 110 as described in this disclosure.
  • processor 112 and interface 121 work together to provide a wireless connection between BS 110 and UE 220.
  • the processor 122 and the interface 121 cooperate to implement downlink transmission and/or uplink transmission of the UE 120.
  • Network 130 may include one or more network devices 130a, 130b (collectively 130) to provide core network functionality.
  • the network device 130 may be a next-generation (eg, sixth generation (6G) or later) core network node, or a traditional (eg, 5G, 4G, 3G, or 2G) core network node.
  • network 130 may be an Access Management Function (AMF), a Mobility Management Entity (MME), or the like.
  • AMF Access Management Function
  • MME Mobility Management Entity
  • Network 130 may also include one or more network nodes in a public switched telephone network (PSTN), a packet data network, an optical network, an IP network, a wide area network (WAN), a local area network (LAN), a wireless local area network (WLAN), a wired network, Wireless networks, metropolitan area networks, and other networks to enable communication between UE 120 and/or BS 110.
  • PSTN public switched telephone network
  • WAN wide area network
  • LAN local area network
  • WLAN wireless local area network
  • wired network Wireless networks
  • Wireless networks metropolitan area networks, and other networks to enable communication between UE 120 and/or BS 110.
  • the processors 112, 122 may include one or more processors as a combination of computing devices.
  • the processor 112 and/or the processor 122 may respectively include one or more of the following: a microprocessor, a microcontroller, a digital signal processor (DSP), a digital signal processing device (DSPD), an application specific integrated circuit (ASIC ), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), gating logic, transistor logic, discrete hardware circuits, processing circuits, or other suitable hardware, firmware, and/or configured to implement the A combination of hardware and software for various functions.
  • Processors 112, 122 may be general purpose processors or special purpose processors.
  • processors 112, 122 may be baseband processors or central processing units.
  • a baseband processor can be used to process communication protocols and communication data.
  • the central processing unit can be used to cause BS 110 and/or UE 120 to execute software programs and process data in the software programs.
  • Interfaces 111, 121 may comprise any suitable hardware or software for enabling communication with one or more computer devices (eg, UE, BS and/or network devices).
  • the interfaces 111, 121 may include terminals and/or pins for coupling wires for wired connections or radio transceivers for wireless connections.
  • the interfaces 111, 121 may include transmitters, receivers, transceivers and/or antennas.
  • the interface may be configured to enable communication between computer devices (eg UE, BS and/or network nodes) using any available protocol (eg 3GPP standard protocol).
  • a program in this application refers to software in a broad sense.
  • the software may be a program code, program, subroutine, instruction set, code, code segment, software module, application, software application, or the like.
  • the program may run on the processor and/or the computer, so that the BS 110 and/or the UE 120 perform various functions and/or processes described in this application.
  • the memory 113, 123 may store necessary data required when the processor 112, 122 executes software.
  • the memories 113, 123 may be implemented using any suitable storage technology.
  • memory 113, 123 may be any available storage medium that can be accessed by a processor and/or computer.
  • Non-limiting examples of storage media are: RAM, ROM, EEPROM, CD-ROM, removable media, optical disk storage, magnetic disk storage media, magnetic storage devices, flash memory, registers, state memory, remotely mounted memory, local or remote memory components , or any other medium that can carry or store software, data or information and be accessed by a processor/computer.
  • the memories 113, 123 and the processors 112, 122 can be set separately or integrated together.
  • the processor 112, 122 may read information from the memory 113, 123, store and/or write information in the memory.
  • the memory 113 may be integrated in the processor 112 .
  • the memory 123 may be integrated in the processor 122 .
  • the processors 112, 122 and the memories 113, 123 may be provided in an integrated circuit (eg ASIC).
  • the integrated circuit can be set in UE or BS or other network nodes.
  • RRC Radio Resource Control
  • RRC connection state When the UE is turned on and has not established a connection with the wireless network, it becomes the UE in the idle state.
  • the UE When the UE has data to receive or send, it needs to establish a connection with the wireless network, that is, the UE needs to enter the connected state to send and receive data.
  • the 5G network retains the concepts of RRC idle state and RRC connected state.
  • 5G also adds a new connection state, that is, RRC deactivated state. These three states can be converted to each other.
  • RRC connected state RRC_CONNECTED
  • RRC_IDLE RRC idle state
  • RRC_INACTIVE RRC inactive state
  • the gNodeB sends the paging message to the UE through the air interface.
  • the UE in the RRC_IDLE state or in the RRC_INACTIVE state receives the paging message at the time domain position of the air interface corresponding to the UE.
  • the UE analyzes the corresponding paging DCI through monitoring, and learns whether the UE is received according to the content indicated by the DCI. paging.
  • the corresponding time domain position of the air interface is represented by the paging frame PF (Paging Frame) and the paging occasion PO (Paging Occasion).
  • PF is a radio frame, representing the paging start frame, including multiple complete POs.
  • PO is a set of PDCCH monitoring opportunities, consisting of multiple slots. The length of one PO is equal to one beam scanning period (corresponding to multiple beams), and the paging message sent on each beam is the same.
  • the i_s of the PO indicates the starting position of a set of PDCCH monitoring opportunities, and the UE starts to receive the paging message from the i_sth PO.
  • T is the DRX cycle of the UE (ie, the paging cycle)
  • PF_offset is the frame offset of the PF
  • N is the number of PFs included in the paging cycle T
  • UE_ID is the identifier of the UE
  • Ns is the number of POs included in the PF.
  • FIG. 3 shows a communication method provided by an embodiment of the present application.
  • a network device (such as a base station) sends system information to a terminal UE.
  • the UE receives system information from the network device.
  • a terminal UE represents a counterparty communicating with a network device, and represents one or more UEs.
  • different UEs can be marked as UE 1, UE 2, UE 3....
  • the system information received from the network device corresponding to UE 1, UE 2, UE 3... can be recorded as system information 1, system information 2, system information 3....
  • the network device may carry the system information in a radio resource control (Radio Resource Control, RRC) message and send it to the UE, or the network device may send the system information to the UE by broadcasting.
  • RRC Radio Resource Control
  • the UE determines the paging occasion calculation identifier according to the system information.
  • the paging occasion calculation identity is the identity of the UE, or the paging occasion calculation identity is the first identity.
  • the first identifier is used to indicate the identifier of the multicast service (MBS).
  • the UE determining the paging occasion calculation identifier according to the system information is specifically: the UE selects an identifier from the UE identifier and the first identifier as the paging occasion calculation identifier according to the system information.
  • the identity of the UE is pre-configured by the network device or sent to the UE through network signaling, for example, through the 5G Temporary Mobile Subscriber Identity 5G S-Temporary Mobile Subscription Identifier (5G-S-TMSI) to point to the UE.
  • 5G-S-TMSI 5G Temporary Mobile Subscriber Identity 5G S-Temporary Mobile Subscription Identifier
  • the paging occasion calculation identifier is used to determine the paging occasion of the MBS.
  • the receiving time of the paging message is related to the paging occasion calculation identifier.
  • the paging frame PF and the paging occasion PO are related to the paging occasion calculation identifier.
  • the paging occasion in this application can be understood as used to represent the time domain position related to paging, that is, the paging occasion includes i_s of the paging frame number PF and the starting position PO of the listening opportunity.
  • the identifier of the UE can be recorded as UE_ID.
  • UE_ID For example, for UE 1, its identifier can be recorded as UE 1_ID, for UE 2, its identifier can be recorded as UE 2_ID, and so on.
  • the UE_ID may be obtained according to the temporary identifier of the UE.
  • the temporary identity is 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI).
  • 5G-S-TMSI 5G-S-Temporary Mobile Subscriber Identity
  • the network device assigns different 5G-S-TMSIs to different UEs as much as possible, that is, the UE_IDs are as different as possible, which ensures that the paging occasions based on different UE_IDs are as different as possible for different UEs.
  • a plurality of UEs are discretely (for example, evenly) allocated to different paging occasions, so as to avoid excessive number of UEs on a single paging occasion and cause paging pressure on the network.
  • the identifier of the UE is the 5G-S-TMSI corresponding to the UE, or the 5G globally unique temporary UE identifier 5G-GUTI corresponding to the UE.
  • the MBS in this application can be understood in a broad sense and refers to a multicast service, a multicast service, or a broadcast service, or any combination thereof.
  • the first identifier is used to indicate (explicitly or implicitly) or identify the MBS.
  • the UE may receive the paging message of the MBS at the paging occasion determined based on the first identifier.
  • the first identifier may be an identifier indicating a multicast service, and is used to indicate a multicast service.
  • the first identifier may be an identifier indicating a multicast service, and is used to indicate a multicast service.
  • the identifier indicating the MBS may be an identifier indicating a broadcast service, and is used to indicate a broadcast service.
  • MBS is a service for multiple terminals, such as Internet of Vehicles service, software download service, live broadcast, and scheduled program playback, etc. MBS is sent to multiple UEs through the base station at the same time.
  • an existing identifier can be used, or an existing identifier can be improved to indicate the MBS, and a new identifier can be constructed or defined to indicate the MBS.
  • the information field or part of the information field of the existing identifier is regarded as the first identifier, so that the existing information structure can be used without configuring new signaling.
  • a globally unique temporary user identifier such as 5G Globally Unique Temporary UE Identity (5G-GUTI), or 5G S-Temporary Mobile Subscription Identifier (5G-S-TMSI), or other identifiers can be used to implement MBS identification instruct.
  • 5G-S-TMSI is a shortened form of 5G-GUTI for more efficient wireless signaling procedures (such as in paging and service request procedures)
  • 5G-GUTI For the structure definition of 5G-GUTI and 5G-S-TMSI, you can refer to the 3GPP TS 23.501 standard.
  • the structure of 5G-GUTI is as follows:
  • ⁇ AMF Identifier> ⁇ AMF Region ID> ⁇ AMF Set ID> ⁇ AMF Pointer>
  • 5G-S-TMSI The structure of 5G-S-TMSI is as follows:
  • MCC mobile country code
  • MNC mobile network code
  • AMF Region ID is used to identify the region, for example, 8bits.
  • AMF Set ID uniquely identifies the AMF set in the AMF area.
  • AMF Pointer identifies one or more AMFs in the AMF collection.
  • 5G-TMSI is used to uniquely identify UE within AMF. For example, AMF Set ID is 10bit, AMF Pointer is 6bits, 5G-TMSI is 32bits, and 5G-S-TMSI is 48bits.
  • the value of 5G-S-TMSI can be configured or predetermined as a given value, so that it is different from other Identify the value of the UE.
  • the value of 5G-S-TMSI used to indicate MBS is different from the 5G-S-TMSI allocated to UE to determine UE_ID, avoiding that the same 5G-S-TMSI identifier is used to identify MBS and Conflicts caused by identifying UEs.
  • 5G-S-TMSI with a given special value can be used to indicate MBS, which is called special 5G-S-TMSI.
  • the value range of 5G-S-TMSI allocated to many terminals is interval 1
  • the value range of 5G-S-TMSI used to indicate MBS can avoid interval 1.
  • the design of the first identification can be realized in various ways. E.g:
  • the 5G-S-TMSI is recorded as a special 5G-S-TMSI, except for the AMF set ID in the special 5G-S-TMSI
  • the other bits are used to indicate the MBS service ID.
  • the 5G-S-TMSI is a special 5G-S-TMSI, and the bit values occupied by the AMF pointer and 5G-TMSI are used to represent the MBS service ID;
  • the 5G-S-TMSI is the special 5G-S-TMSI, and the other 43 bits in the bits corresponding to the 5G-S-TMSI take values Used to indicate the MBS service ID.
  • the 5G-S-TMSI is recorded as special 5G-S-TMSI.
  • the mapping relationship between special values and MBS can be defined (for example, as shown in Table 1 below), and the association relationship between the special 5G-S-TMSI and MBS service ID can be established.
  • the 5G-S-TMSI is the special 5G-S-TMSI described above, and corresponds to mapping relationship 1, and the value of the bit corresponding to the AMF pointer and 5G-TMSI is used to indicate MBS service ID, as shown in Table 1 below.
  • mapping relationship 2 is different from mapping relationship 1, for example, in mapping relationship 2, MBS1 corresponds to identifier 2, and MBS2 corresponds to identifier 1.
  • mapping tables can be represented by different special values, such as the value of AMD set ID mentioned above, other methods are not excluded to indicate the existence of different mapping tables, such as network parameter configuration, where the frequency band is configured as When FR1 is used, it corresponds to mapping relationship 1. When the frequency band is configured as FR2, it corresponds to mapping relationship 2.
  • FDD/TDD or subcarrier spacing can also be used to indicate the mapping relationship.
  • CN reserves a special 5G-S-TMSI instance to represent the MBS service instance, and CN needs to avoid using this when allocating normal 5G-S-TMSI to UE Special 5G-S-TMSI instance.
  • the UE may obtain the first identity in various ways. E.g:
  • the first identifier is predetermined, for example, pre-configured or stipulated through a standard protocol.
  • the core network equipment pre-allocates an MBS identifier for the UE, and the MBS identifier corresponds to the MBS data to be received by the UE.
  • the multicast data distribution process (phases of multicast data provisioning) includes service notification, session join UE session Join, session establishment Session Establishment, data transfer Data Transfer and other processes.
  • the first identifier is indicated to the UE by the network device through signaling.
  • the signaling carries or implicitly indicates the first identifier, or indicates the mapping relationship between each MBS of the UE and the first identifier.
  • the identifier of the multicast service is sent to the UE for the multicast service to be received by the UE, which can save overhead.
  • the UE confirms the MBS that needs to be joined, for example, the UE confirms that it needs to join the MBS after receiving the service announcement.
  • the UE initiates a corresponding session joining process.
  • the network device indicates the first MBS identifier corresponding to the MBS through signaling.
  • the first identifier is obtained according to the service identifier (MBS service ID) of the MBS.
  • the UE determines the identity indicating the MBS according to the MBS service ID and the mapping relationship.
  • the mapping relationship here refers to the correspondence between the service identity of the MBS and the identity indicating the MBS, that is, the relationship between the service identity of the MBS and the first identity Mapping relationship, the first identifier is used to calculate the receiving timing of the MBS paging message.
  • Table 1 below shows an example of the mapping relationship between the MBS service ID and the first identifier.
  • the first identifier uses 5G-S-TMSI to indicate that the mapping relationship can be one-to-one or one-to-many.
  • 5G-S-TMSI can correspond to two
  • the two or more MBSs correspond to the same indication MBS identifier, that is, they share the same paging opportunity, which is conducive to improving the efficiency of MBS paging.
  • MBS service ID first logo MBS1 (for example, car networking service) Identity 1 (for example, 5G-S-TMSI_1) MBS2 (eg, software download service) Identity 2 (for example, 5G-S-TMSI_2) ... ...
  • MBS1 for example, car networking service
  • Identity 1 for example, 5G-S-TMSI_1
  • MBS2 eg, software download service
  • Identity 2 for example, 5G-S-TMSI_2
  • the correspondence or mapping relationship may be pre-configured or predefined by a protocol.
  • the UE determines the corresponding first identifier according to the corresponding relationship and the service identifier of the MBS.
  • the UE can obtain the start time of each MBS, the frequency band and other information, and configure the mapping relationship between the MBS and the first identifier in the USD, so that the UE can know the MBS and the first identifier through the USD.
  • the mapping relationship of the first identifier is a mapping relationship of the first identifier.
  • the multicast data distribution process includes service notification, UE session join UE sessionJoin, session establishment Session Establishment, data transfer Data Transfer and other processes.
  • the UE learns the correspondence between the MBS and the first identifier.
  • the network indicates the mapping relationship between the MBS identifier and the first identifier to the UE by broadcasting the system information.
  • the mapping relationship is carried in the system information.
  • the mapping relationship may be sent to the UE through a broadcast control channel (broadcast control channel, BCCH).
  • BCCH broadcast control channel
  • the mapping relationship may also be transmitted through a multicast control logical channel (multicast control channel, MCCH), a multicast service logical channel (multicast traffic channel, MTCH) sent to UE.
  • MCCH multicast control logical channel
  • MTCH multicast traffic channel
  • the UE determines the corresponding first identifier according to the service identifier of the MBS and a predetermined rule.
  • the UE knows that the core network equipment constructs the first identity based on a predefined method.
  • the length of the first identification is 48 bits.
  • some bits in the first identification such as the first 24 bits, are special values, other bits in the first identification (such as the last 24 bits, or parts of the last 24 bits bit) indicates MBS.
  • MBS is represented by the MBMS service ID part in Temporary Mobile Group Identity (TMGI).
  • Figure 4 shows the cell structure of TMGI, which includes MBMS Service ID field, for example, can occupy 24 bits, and the value of this field is used to indicate MBS.
  • the UE may also determine the first identifier corresponding to the MBS based on the aforementioned predetermined rule.
  • the predefined method the first identifier is a special value with a certain number of bits added before the MBMS service ID, for example, the combination of 24bit 1 and MBMS service ID is the first identifier, and the first 24 bits are removed from the first identifier to obtain MBMS service ID, the UE can add 24-bit 1 before the service identifier of the MBS to obtain the first identifier.
  • the UE can determine which type of multicast service to receive, that is, whether to receive Internet of Vehicles service data or software download data, through pre-configuration, or USD, or during the service notification phase.
  • TMGI can pre-configure The configuration mode is notified to the UE.
  • the UE determines the paging occasion calculation identifier according to the system information, or the UE selects the UE identifier or the first identifier as the paging occasion calculation identifier according to the system information.
  • the UE determines the paging occasion calculation identifier based on whether the system information includes a system information block (system information block, SIB) related to the MBS. If the system information includes the SIB related to MBS, the UE determines that the paging occasion calculation identity is the identity of the UE; if the system information does not include the MBS-related SIB, the UE determines that the paging occasion calculation identity is the first identity (that is, used to indicate MBS logo).
  • SIB system information block
  • the new paging occasion refers to a paging occasion different from the paging occasion at which the first terminal receives the unicast service paging message.
  • the new paging occasion refers to a paging occasion determined by using a new identity other than the identity of the first terminal as the paging occasion calculation identity.
  • the UE calculates the PO by judging whether to use the terminal identifier or the first identifier as the paging occasion calculation identifier according to whether there is a relevant type of SIB in the system information.
  • the system information is a collection of system information, including two or more system information SIBs.
  • the system information includes MBS-related SIBs, such as SIB13, SIB15, or SIB20, the UE determines that the paging calculation identifies the UE's logo.
  • the UE determines the paging occasion calculation identifier based on whether the system information includes indication information. If the system information includes the first indication information, the UE determines that the paging occasion calculation identity is the identity of the UE; if the system information does not include the first indication information, the UE determines that the paging occasion calculation identity is the first identity (that is, used to indicate the MBS logo).
  • the UE selects a paging occasion and calculates the identity as the UE identity.
  • the first indication information is used to indicate that it is not necessary to determine a new paging occasion for receiving the paging message of the MBS.
  • the reserved bit in the SIB can be used as the first indication information, for example, 1 bit.
  • it indicates that the UE determines to use the identity of the UE as the paging opportunity to calculate the identity.
  • it indicates that the UE determines to use the first identity as the paging opportunity call timing to calculate the identity, and vice versa. Or it can also be indicated by taking true/false.
  • the system information may also be indicated by whether the system information includes the first indication information. If the system information includes the first indication information, instruct the UE to determine the first identity as the paging occasion calculation identity; if the system information does not include the first indication information, instruct the UE to determine the UE identity as the paging occasion calculation identity, and vice versa .
  • the information element includes setupRelease ⁇ first indication information ⁇ , it means that the first indication information does not exist in the system information.
  • the system information may be an existing type of SIB, or the system information may be a newly defined SIB.
  • the system information sent by the device to the UE does not include the SIB related to MBS, it is equivalent to instructing the UE to use a new paging opportunity to receive MBS paging, or it can be considered as indicating to the UE to use the MBS paging occasion to receive MBS paging information.
  • the first system information is further used to indicate the type of the network device sending the system information.
  • the type includes: supporting group paging, and/or not supporting group paging.
  • MBS supporting node For network devices that support group paging, it can be called MBS supporting node.
  • This type of network device can use group paging to send group paging messages to UEs on the unicast PO of each UE. For UEs, they can receive unicast and multicast paging on the same PO. message, which improves resource utilization efficiency and saves overhead.
  • the calculation overhead of the network device for calculating the paging opportunity of the multicast service can be further saved.
  • non-MBS Supporting node For network devices that do not support group paging, it can be called non-MBS Supporting node or Legacy node.
  • This type of network equipment does not have the function of performing multicast paging or group paging.
  • the identification indicating multicast paging received from the core network equipment is the first identification.
  • the corresponding PO sends the paging message of the MBS.
  • This type of network device does not necessarily need to recognize the first identifier.
  • the first identifier can be designed to be consistent with the structure and information domain of other UE identifiers.
  • the corresponding UE may receive the paging message on the PO corresponding to the first identifier. In this way, the requirement of multicast paging can be realized without changing the existing processing flow of the base station.
  • the UE determines that the network device supports multicast paging, and the UE determines the identity of the UE as the identity for paging occasion calculation. If the system information does not include the SIB related to the MBS, the UE determines that the network device does not support multicast paging, and determines that the first identifier is the paging occasion calculation identifier.
  • the UE determines that the network device supports multicast paging, and determines that the identifier of the UE is the paging occasion calculation identifier. If the system information does not include the first indication information, the UE determines that the access network device does not support multicast paging, and the UE determines that the first identifier is a paging occasion calculation identifier.
  • the UE determines the first paging occasion according to the paging occasion calculation identifier.
  • the first UE calculates a first paging occasion using the paging occasion identifier determined in 302 .
  • the paging occasion calculation identifier is recorded as Paging_ID.
  • the paging occasion calculation identifier satisfies the following relationship:
  • i_s floor(Paging_ID/N)mod Ns (4)
  • i_s indicates the starting position of a set of PDCCH monitoring opportunities, and the UE starts to receive the paging message from the i_sth PO.
  • T is the DRX cycle of the UE (that is, the paging cycle)
  • PF_offset is the frame offset of the PF
  • N is the number of PFs included in the paging cycle T
  • Ns is the number of POs included in the PF.
  • the value of Paging_ID in the above formula (3) and formula (4) is Paging_ID or the value is Paging_ID mod 1024.
  • the network device sends the MBS paging message to the UE at the first paging occasion.
  • the UE receives the paging message of the MBS at the first paging occasion
  • the paging occasion calculation identifier is the identifier of the UE, and the paging message of the MBS includes the service identifier of the MBS.
  • UE1 determines to be paged by the MBS according to the service identifier of the MBS carried in the paging message of the MBS, such as the MBS service ID or the MBS session ID.
  • the paging occasion calculation identifier is the identifier indicating the MBS, and the paging message of the MBS includes the identifier indicating the MBS.
  • UE1 determines to be paged by the MBS according to the identifier indicating the MBS carried in the paging message of the MBS, that is, the first identifier, for example, 5G-S-TMSI with a special value.
  • the paging message is sent periodically, that is, UE1 periodically receives the paging message from the MBS of the access network device after determining the first paging occasion.
  • the paging cycle corresponding to the first paging occasion is the discontinuous reception DRX cycle of the UE.
  • the first paging occasion is the same as the paging occasion PO at which the UE receives the unicast paging message, that is, the UE listens to the PO, and can both The unicast paging message and the multicast paging message are also received, which reduces the paging power consumption overhead of the UE receiving the MBS.
  • the message received on the PO carries the MBS identifier, the UE determines to be paged by the MBS instead of the unicast service.
  • Unicast and multicast share the same paging opportunity, and the paging cycle can also be the same, or the cycle of the MBS paging message is N times the paging cycle of the unicast service, that is, the MBS paging cycle is N*T DRX .
  • the paging occasion calculation identifier is the identifier of the indicated MBS, and the paging cycle corresponding to the first paging occasion is the first paging cycle.
  • the determination of the first paging cycle has the following possible ways:
  • the paging cycle is determined by the core network equipment as an MBS paging cycle.
  • the MBS data arrives at the User Plane Function (UPF), and the core network device CN (such as the network element AMF in the core network device) needs to page the MBS UE, the CN sends an NG paging message to the access network device, and the paging
  • the message content may include: UE paging identifier (the first identifier in this case), UE DRX cycle (used to calculate the paging occasion of the UE, in this case it is the MBS paging cycle).
  • the method for UE1 to obtain the paging cycle may be NAS signaling, for example, it is sent to UE1 together with the normal DRX cycle during the registration or TAU process. Or it may be acquired through RRC signaling, for example, the MBS paging cycle is used as a part of MBS configuration information, and the network informs the UE through RRC signaling or SIB or MCCH.
  • Mode B The paging cycle is consistent with the paging cycle of the UE unicast service message, that is, no additional paging cycle for MBS is configured.
  • the first paging cycle is the minimum value of the discontinuous reception DRX cycle of one or more UEs in the UE set.
  • the set of UEs is associated with the MBS.
  • the UEs shown in Fig. 3 belong to the set of UEs.
  • the UE set includes one or more UEs, such as UE 1, UE 2, UE 3....
  • the first paging cycle takes the minimum value of the DRX cycle of the UEs in the UE set, which can ensure that all the UEs in the UE set can receive the multicast paging message from the access network device.
  • the first identifier is determined as the paging occasion calculation identifier.
  • the UE calculates and obtains the first paging occasion according to the first identifier, and receives the paging message of the MBS at the first paging occasion, for example, the first paging occasion is used for UE 1 to receive the paging message of MBS1, and the first paging occasion The paging occasion is also used for UE2 to receive the paging message of MBS1. It should be noted that 1, 2, and 3 in MBS1, MBS2, MBS3... are only used to represent a certain MBS, so as to distinguish different multicast services.
  • MBS1 is associated with a set of UEs, and it can be understood that the set of UEs is a set of UEs that want to receive services of MBS1. In other words, all UEs in the UE set are interested in the MBS1 service.
  • the user identities of UE1 and UE2 are different, so UE 1 and UE 2 may receive different POs for receiving unicast services. The reason is that although the user identities are different, the paging timing obtained after modulating the user identities in formula (1) may be the same .
  • UE1 and UE2 both belong to the first UE set, so UE2 also determines the first paging occasion according to the same paging occasion calculation identifier, that is, UE1 and UE2 receive the paging message of MBS1 at the same first paging occasion.
  • UE 1 and UE 2 also need to monitor their respective unicast paging, the corresponding PO is determined according to the normal 5G-S-TMSI, and the DRX cycle is completed through registration or tracking area update (TAU) process DRX cycle negotiation, so as to obtain respective DRX cycles.
  • TAU tracking area update
  • the network equipment sends the paging message of the MBS on a PO, and one or more UEs associated with the MBS receive the paging message of the MBS on the PO, which saves the calculation overhead of calculating the paging opportunity of the MBS.
  • the first paging occasion is different from the PO that UE 1 receives the unicast paging message.
  • the paging occasion calculation identifier used to determine the first paging occasion is the same as that of UE 1
  • the identifiers of the two are different, and the POs corresponding to the two obtained through the PO calculation formula may also be the same.
  • the first identity is different from the identity of one or more UEs in the set of UEs. Therefore, based on the first identity, it is different from the PO determined based on the identity of the UE, so as to prevent the network device from making a call to a UE (for example, UE 1) performs unicast paging, and another UE (eg, UE 2) performs multicast paging, resulting in a collision.
  • a UE for example, UE 1 performs unicast paging
  • another UE eg, UE 2
  • the method may further include step S305.
  • the UE initiates a random access procedure to establish a connection with the network device, or the UE receives the MBS from the access network device in a non-connected state.
  • the MBS data can be read through the multicast control logical channel MCCH, or obtained through the multicast service logical channel MTCH.
  • the identification of the UE may be replaced by an MBS session ID or an MBS service ID.
  • UE1 determines the paging occasion calculation identifier in the MBS session ID and the identifier indicating the multicast service according to the first communication system information.
  • the paging message of the multicast service may carry the MBS session ID to indicate to the UE that the paging message is a paging message of the multicast service.
  • the UE determines or selects the paging occasion calculation identifier according to the system information sent by the network device, so that the paging occasion for receiving the multicast paging message can be obtained based on the paging occasion calculation identifier. If the system information includes the first indication information or includes the MBS-related SIB, the UE receives the paging message of the MBS based on the paging occasion corresponding to the UE identity, so that the UE can also receive the MBS when receiving the paging occasion of unicast paging paging, which reduces the paging power consumption overhead of UE receiving MBS.
  • the UE receives the paging message of the MBS based on the paging occasion corresponding to the first identifier.
  • the paging occasion can be shared by multiple UEs associated with the MBS , improving the utilization efficiency of system paging resources.
  • Fig. 7 shows a communication method provided by an embodiment of the present invention.
  • the embodiment shown in FIG. 7 increases the interaction with core network equipment, and further provides multiple UEs to communicate with the network on the basis of the embodiment shown in FIG. 3 interactive process.
  • the embodiment shown in FIG. 7 is used alone or in combination with the embodiment shown in FIG. 3 .
  • the perspective of a network device, or the explanation of terms, for the part related to FIG. 3 refer to the relevant description in FIG. 3 for details, and details are not repeated in this embodiment.
  • the core network device determines that the network device supports multicast paging.
  • the core network device determines that the network device is a network device that supports multicast paging, such as an MBS supporting node.
  • the network device supporting multicast paging displays an SMF carrying some MBS-related indications to the core network.
  • the core network device can determine that the network device supports multicast paging if it receives the MBS-related instruction information, and if the core network device does not receive the relevant instruction, it can be determined that the network device does not support multicast paging.
  • the access network device supports multicast paging, which indicates that the network device can send the MBS paging message to the UE at the corresponding paging occasion of the UE, without determining a new PO for sending the MBS paging.
  • the MBS data reaches the core network equipment, such as the user plane function (User Plane Function, UPF) of the core network equipment, and the core network equipment pages the UE corresponding to the MBS, such as the access of the core network equipment
  • UPF User Plane Function
  • the UE corresponding to the MBS is paged by the Access and Mobility Management Function (AMF).
  • AMF Access and Mobility Management Function
  • the core network device sends first information to the network device, where the first information includes the service identifier of the MBS.
  • the first information further includes an identification list of the UE set.
  • step S700 the core network device directly sends the first information, and if the access network device that receives the first information is an access network device that supports multicast paging, the network device will process the first information, if the network equipment that receives the first information does not support multicast paging, then the network equipment ignores the first information, for example, by setting the Assigned Criticality field in the information element in the first message to "ignore" to achieve.
  • the first information is an NGAP (NG Application Protocol) message, or the first information is a part of the NG Application Protocol message. .
  • NGAP NG Application Protocol
  • the core network device sends the MBS service identifier and the UE set list to the access network device.
  • the network device can learn the set of UEs corresponding to the MBS, so as to perform MBS paging on these UEs.
  • the UE set list can optionally be ⁇ UE 1_ID, UE 2_ID,..., UE N_ID ⁇ , or corresponding to each UE in the UE set, for example ⁇ 5G-S-TMSI 1,5G-S-TMSI 2,5G-S -TMSI 3,... ⁇ .
  • the UE set list may include not only the UE_ID of each UE, but also the 5G-S-TMSI corresponding to each UE.
  • the first identifier is used to identify the MBS, which can be used by the terminal and/or network equipment to determine the paging occasion.
  • the first identifier may be an MBS service identifier, such as MBS session ID or MBS service ID.
  • the UE set includes terminal 1 (UE 1) and terminal 2 (UE 2).
  • UE1 and UE2 expect to receive the corresponding MBS.
  • the network device sends system information to UE 1 and UE 2.
  • UE 1 and UE 2 receive the system information from the network device.
  • the system information includes the first indication information or includes the SIB related to the MBS.
  • UE1 determines the paging occasion according to the system information and calculates the identity of UE1.
  • UE1 selects the identity of UE1 from the identity of UE1 and the first identity according to the system information as the identity for paging occasion calculation.
  • the first identifier is an identifier indicating the multicast service MBS.
  • UE1 determines that the paging calculation identity is the identity of the UE according to the first indication information included in the system information or the MBS-related SIB included in the system information.
  • UE1 may also determine that the network device supports group paging according to the first indication information included in the system information.
  • the network device is optional for the MBS supporting node
  • UE 1 determines the network device according to the fact that the system information does not include the first indication information, and does not support group paging, that is, the network device is a non-MBS supporting node.
  • it may be determined whether the first network device is an MBS supporting node or a non-MBS supporting node according to whether the MBS-related SIB is included in the first system message.
  • UE 1 determines the type of network equipment and the method for receiving the corresponding multicast paging message according to the system information.
  • the UE 2 determines the paging occasion according to the system information and calculates the identity of the UE 2.
  • UE1 determines the first paging occasion according to the paging occasion calculation identifier.
  • the UE1 determines that the paging occasion calculation identifier is the identifier of UE1, the UE obtains the first paging occasion for receiving multicast paging information according to the paging occasion calculation method in the embodiment of FIG. 3 .
  • UE2 determines the second paging occasion according to the paging occasion calculation identifier.
  • UE 2 determines the second paging opportunity according to the identity of UE 2.
  • the network device determines the first paging opportunity according to the identifier of UE1.
  • the network device sends the MBS paging message to UE 1 at the first paging opportunity.
  • the paging message of the MBS includes the service identifier of the MBS, and UE 1 determines to be paged by the MBS according to the service identifier of the MBS in the paging message.
  • S707-S708 are similar to S705-S706 and will not be repeated here.
  • the corresponding paging cycle is the DRX cycle of UE 1, or an integer multiple of the DRX cycle of UE 1.
  • the period for UE2 to receive the multicast paging message is the DRX period of UE2 or an integer multiple of the DRX period.
  • UE 1 initiates a random access procedure, or receives the MBS in a non-connected state.
  • S710 is similar to S709 and will not be repeated here.
  • Steps S700, S701, S709, and S710 in the communication method shown in FIG. 7 are optional. There is no particular sequence between the various steps. For example, S705 may occur before S703A, may also occur after S703, or may occur at the same time, that is, there is no absolute order in which UE 1 and the network device determine the first paging opportunity. The other steps are similar, and there is no specific sequence.
  • Fig. 8 shows a communication method provided by an embodiment of the present invention.
  • the embodiment shown in FIG. 6 increases the interaction with the core network device and the network device 2, and provides richer functions based on the embodiment shown in FIG. Communication interaction process.
  • the embodiment shown in FIG. 8 is used alone or in combination with the embodiment shown in FIG. 3 and the embodiment shown in FIG. 7 .
  • the core network device determines whether the access network device supports multicast paging.
  • the core network device determines that network device 1 supports multicast paging, and network device 2 does not support multicast paging.
  • Supporting multicast paging can be understood as having a multicast paging function.
  • the network device can send both unicast paging and multicast paging to the UE on the same PO.
  • Not supporting multicast paging can be understood as not having the multicast paging function, or the network device 2 is not aware of multicast paging. Network device 2 cannot distinguish whether a certain paging is a multicast paging or a unicast paging. Regardless of whether it is unicast paging or multicast paging, the structure of the NG Application Protocol message sent by the core network device to network device 2 is the same.
  • the core network device sends first information to the network device 1, where the first information includes the service identifier of the MBS and/or the user identifier list of the first UE set.
  • the core network device sends second information to the network device 2, where the second information includes an identifier indicating the MBS.
  • the second information may further include a first paging cycle, where the first paging cycle is a minimum value of DRX cycles of UEs in the UE set.
  • the first paging cycle is a minimum value of DRX cycles of UEs in the UE set.
  • the second information is an NG Application Protocol message or a part of the NG Application Protocol message, indicating that the MBS identifier occupies the UE Paging Identity field in the NG Application Protocol message, and the first paging cycle occupies Paging DRX field in Table 2.
  • the UE Paging Identity field can specifically be 5G-S-TMSI.
  • the UE Paging Identity field can be used as the first identifier, that is, the identifier indicating the MBS.
  • the number of bits of the first identifier is the same as the number of bits occupied by 5G-S-TMSI.
  • the core network device sends first signaling to UE 1, where the first signaling includes a first identifier, that is, an identifier indicating the MBS.
  • the core network device also sends an identifier indicating the MBS to the UE 3.
  • the identifier indicating the MBS corresponds to the MBS.
  • the UE may determine to indicate the identity of the MBS in other ways, such as indicating that the identity of the MBS is pre-configured; or indicating that the identity of the MBS is notified through signaling, for example, the first signaling is broadcast signaling, NAS signaling signaling or RRC signaling; or determined according to the MBS service identifier and corresponding relationship.
  • Network device 1 sends system information 1 to UE 1.
  • the system information 1 includes the first indication information, or the system information 1 includes the SIB related to the MBS.
  • the network device 2 sends the system information 3 to the UE 3.
  • the system information 3 does not include the first indication information, or the system information 3 does not include the SIB related to the MBS.
  • UE1 determines the paging occasion according to the system information 1 and calculates the identity of UE1.
  • the UE 1 selects the identity of the UE 1 as the paging occasion calculation identity according to the first indication information included in the system information 1, or the MBS-related SIB included in the system information 1.
  • the UE 3 determines the paging occasion according to the system information 3 and calculates the identifier as the identifier indicating the MBS.
  • the UE 3 selects the identifier of the indicated MBS as the paging occasion calculation identifier according to the first indication information included in the system information 3, or the MBS-related SIB included in the system information 3.
  • UE1 determines the first paging occasion according to the paging occasion calculation identifier.
  • UE 3 determines the third paging occasion according to the paging occasion calculation identifier.
  • the third paging occasion is calculated according to the identifier indicating the MBS, and the third paging occasion may be commonly used by multiple UEs to receive paging of the MBS corresponding to the identifier.
  • the network device 1 determines the first paging opportunity according to the identifier of the UE 1.
  • the network device 2 determines a third paging occasion according to the identifier indicating the MBS.
  • the network device 1 sends the MBS paging message to the UE 1 at the first paging opportunity.
  • the paging message of the MBS includes the service identifier of the MBS, such as MBS session ID or MBS service ID.
  • UE 1 belongs to the UE set.
  • the network device 1 sends the MBS paging message to the UEs in the UE set at the first paging occasion.
  • the network device 1 sends the MBS paging message to the UE 3 at the third paging opportunity.
  • UE 1 monitors the paging message of the unicast service at the first paging occasion, when the paging message received by UE 1 at the first paging occasion contains the service identifier of the MBS, for example, the MBS of MBS1 session ID, UE1 is determined to be paged by MBS. Thereafter, similar to step S305 or step S709, UE 1 initiates a random access process, accesses network device 1, and then receives MBS from network device 1; or UE 1 receives MBS in a non-connected state.
  • the service identifier of the MBS for example, the MBS of MBS1 session ID
  • UE 3 listens on the third paging occasion, and the paging message received by UE 3 on the third paging occasion includes the identifier indicating the MBS, for example, special 5G-S-TMSI.
  • UE 3 determines to be paged by the MBS corresponding to the identifier, for example, the MBS corresponding to the 5G-S-TMSI1 is MBS1. After UE3 is determined to be paged by the MBS, it further performs random access or performs MBS reception in a non-connected state.
  • Steps S800 , S801 , S802 , S803 , S810 , and S811 in the communication method shown in FIG. 8 are optional. There is no particular sequence between the various steps. For example, S808 may occur before S807A, may also occur after S807A, or may occur at the same time, that is, there is no absolute sequence for UE1 and the network device to determine the first paging occasion. The other steps are similar, and there is no specific sequence.
  • FIG. 9 shows a schematic structural diagram of a UE provided by an embodiment of the present application.
  • UE 900 is used as a mobile phone as an example. It can be understood that UE 900 is not limited to a mobile phone, and it may be a terminal suitable for the system shown in FIGS. 1A-1C and 2.
  • FIG. 9 only shows the main components of UE 900.
  • UE 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, control the entire UE900, execute software programs, and process data of the software programs.
  • Memory is primarily used to store software programs and data.
  • the control circuit is mainly used for conversion of baseband signal and radio frequency signal and processing of radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, microphones, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the control circuit, and the control circuit performs radio frequency processing on the baseband signal, and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 9 only shows a memory and a processor.
  • UE 900 may include multiple processors and memory.
  • a storage may also be called a storage medium or a storage device, which is not limited in this embodiment of the present invention.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processor is mainly used to control the entire UE900 and execute software. Programs, which process data for software programs.
  • the processor in FIG. 9 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors, interconnected through technologies such as a bus.
  • UE900 may include multiple baseband processors to adapt to different network standards, UE900 may include multiple central processors to enhance its processing capability, and various components of UE900 may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit may also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and the control circuit with the transceiver function may be regarded as the transceiver unit 910 of the UE 900
  • the processor with the processing function may be regarded as the processing unit 920 of the UE 900
  • a UE 900 includes a transceiver unit 910 and a processing unit 920 .
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like.
  • the device in the transceiver unit 910 for realizing the receiving function may be regarded as a receiving unit
  • the device in the transceiver unit 910 for realizing the sending function may be regarded as a sending unit, that is, the transceiver unit 910 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, receiver, receiving circuit, etc.
  • the sending unit may be called a transmitter, transmitter, or transmitting circuit, etc.
  • the embodiment of the present application also provides a network device, which can be used in the foregoing embodiments.
  • the network device includes means, units and/or circuits for realizing the functions of the network device 1 and/or network device 2 described in the embodiments shown in FIGS. 1A-1C and 2 to 8 .
  • the network device includes a transceiver module, configured to support the UE to implement a transceiver function, and a processing module, configured to support the network device to process signals.
  • the network device 1 and the network device 2 are relative to one or some UEs, and relative to some other UEs, the roles of the network device 1 and the network device 2 can be interchanged.
  • FIG. 10 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1000 may be the communication device described in the foregoing embodiments, and is used to implement the above method.
  • the communication device in the embodiment may be the communication device having the terminal function in the foregoing embodiments, and/or the communication device having the base station function device, or a functional module in the aforementioned communication device.
  • the communication device For specific functions of the communication device, reference may be made to the descriptions in the foregoing method embodiments.
  • the communication device 1000 includes one or more processors 1001 .
  • the processor 1001 may also be referred to as a processing unit, and may implement certain control functions.
  • the processor 1001 may be a general-purpose processor or a special-purpose processor. For example, including: baseband processor, central processing unit, application processor, modem processor, graphics processor, image signal processor, digital signal processor, video codec processor, controller, memory, and/or Neural Network Processor, etc.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processing unit can be used to control the communication device 1000, execute software programs and/or process data. Different processors may be independent devices, or may be integrated in one or more processors, for example, integrated in one or more application-specific integrated circuits.
  • the communication device 1000 includes one or more memories 1002 for storing instructions 1004, and the instructions can be executed on the processor, so that the UE 1000 executes the methods described in the foregoing method embodiments.
  • data may also be stored in the memory 1002 .
  • the processor and memory can be set separately or integrated together.
  • the communication device 1001 may include instructions 1003 (sometimes also referred to as codes or programs), and the instructions 1003 may be executed on the processor, so that the communication device 800 executes the methods described in the above-mentioned embodiments .
  • Data may be stored in the processor 1001 .
  • the communication device 1000 may further include a transceiver 1005 and an antenna 1006 .
  • the transceiver 1005 may be called a transceiver unit, a transceiver, a transceiver circuit, a transceiver, an input/output interface, etc., and is used to realize the transceiver function of the communication device 1000 through the antenna 1006 .
  • the communication device 1000 may further include one or more of the following components: a wireless communication module, an audio module, an external memory interface, an internal memory, a universal serial bus (universal serial bus, USB) interface, a power management module, an antenna, Speakers, microphones, I/O modules, sensor modules, motors, cameras, or displays, etc.
  • a wireless communication module an audio module
  • an external memory interface an internal memory
  • a universal serial bus universal serial bus, USB
  • a power management module an antenna
  • Speakers microphones, I/O modules, sensor modules, motors, cameras, or displays, etc.
  • the UE 1000 may include more or fewer components, or some components may be integrated, or some components may be split. These components may be realized by hardware, software, or a combination of software and hardware.
  • the processor 1001 and transceiver 1005 described in this application can be implemented in integrated circuit (integrated circuit, IC), analog IC, radio frequency integrated circuit (radio frequency identification, RFID), mixed signal IC, application specific integrated circuit (application specific integrated circuit) , ASIC), printed circuit board (printed circuit board, PCB), or electronic equipment, etc.
  • the communication device described herein can be an independent device (for example, an independent integrated circuit, a mobile phone, etc.), or it can be a part of a larger device (for example, a module that can be embedded in other devices).
  • a module for example, a module that can be embedded in other devices.
  • An embodiment of the present application provides a UE, and the UE (referred to as UE for convenience of description) may be used in the foregoing embodiments.
  • the UE includes corresponding means, units and/or circuits for realizing the UE functions described in the embodiments shown in FIG. 1A-1C and FIG. 2 to FIG. 8 .
  • the UE includes a transceiver module, configured to support the UE to implement a transceiver function, and a processing module, configured to support the UE to process signals.
  • FIG. 11 shows a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 11 can be applied in the systems shown in FIGS. 1A-1C and FIG. 2 .
  • the network device 11 may have the function of an access network device as a network device for some or some UEs, or may have the function of a core network device as a core network device for some or some UEs.
  • the network device includes: a baseband device 111 , a radio frequency device 112 , and an antenna 113 .
  • the radio frequency device 112 receives the information sent by the UE or the access network device through the antenna 113, and sends the information sent by the UE or the access network device to the baseband device 111 for processing.
  • the baseband device 111 processes the information of the UE or the access network equipment and sends it to the radio frequency device 112
  • the radio frequency device 112 processes the information of the UE or the access network device and sends it to the UE or the access network network equipment.
  • the baseband device 111 includes one or more processing units 1111 , a storage unit 1112 and an interface 1113 .
  • the processing unit 1111 is configured to support the network device to execute the functions of the network device in the foregoing method embodiments.
  • the storage unit 1112 is used to store software programs and/or data.
  • the interface 1113 is used for exchanging information with the radio frequency device 112, and the interface includes an interface circuit for input and output of information.
  • the processing unit is an integrated circuit, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the storage unit 1112 and the processing unit 1111 may be located in the same chip, that is, an on-chip storage element. Alternatively, the storage unit 1112 and the processing unit 1111 may also be on different chips from the processing unit 1111 , that is, an off-chip storage unit.
  • the storage unit 1112 may be one memory, or a general term for multiple memories or storage elements.
  • a network device may implement part or all of the steps in the foregoing method embodiments in the form of one or more processing unit schedulers. For example, the corresponding functions of the network devices in FIG. 3 , FIG. 7 , and/or FIG. 8 are realized.
  • the one or more processing units may support wireless access technologies of the same standard, or may support wireless access technologies of different standards.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division.
  • the units described as separate components may or may not be physically separated.
  • the components shown may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned computer-readable storage medium may be any available medium that can be accessed by a computer.
  • the computer readable medium may include random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), Erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically erasable programmable read only memory, EEPROM), compact disc read-only memory (compact disc read-only memory, CD- ROM), universal serial bus flash disk (universal serial bus flash disk), removable hard disk, or other optical disk storage, magnetic disk storage medium, or other magnetic storage device, or can be used to carry or store desired data in the form of instructions or data structures program code and any other medium that can be accessed by a computer.
  • RAM random access memory
  • read-only memory read-only memory
  • ROM programmable read-only memory
  • PROM programmable read-only memory
  • Erasable programmable read-only memory Erasable programmable read-only memory
  • EPROM Er
  • RAM static random access memory
  • dynamic RAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the number of nouns means “singular noun or plural noun", that is, “one or more”. "At least one” means one or more, and “plurality” means two or more. "And/or” describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character “/" generally indicates that the contextual objects are an "or” relationship. For example, A/B means: A or B. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (piece) of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c Can be single or multiple.

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Abstract

本申请涉及一种通信方法及通信装置。接收来自网络设备的***信息，根据***信息确定寻呼时机计算标识为终端的标识，或者为指示多播业务的标识，根据该寻呼时机计算标识确定第一寻呼时机，并在第一寻呼时机上接收多播业务的寻呼消息。在本申请的一种可能的实施例中，通过***信息向终端指示了接收多播寻呼消息的寻呼时机计算标识，在终端的标识对应的寻呼时机上接收多播寻呼消息，终端无需确定新的寻呼时机，有利于降低信令开销，在指示多播业务的标识对应的寻呼时机上接收多播寻呼消息有利于提升寻呼资源的利用效率。

Description

一种无线通信方法、装置及*** 技术领域
本申请涉及通信技术领域，尤其涉及一种无线通信方法、装置及***。
背景技术
多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)或者多播广播业务(multicast broadcast service，MBS)是面向多个用户设备(User equipment，UE)的业务，例如现场直播、定时节目播放等。基站同时向多个UE发送MBS。当有大量UE需要接收某一多播业务时，基站建立该多播业务专用的承载，所有对该业务感兴趣的UE都可以通过这个承载接收该MBS。
当有业务数据到达时，网络设备需要寻呼对该业务数据感兴趣的UE。不同UE对应的寻呼时机不同。在MBS场景下，当MBS数据到达时，网络设备需要在各个UE对应的寻呼时机上发送寻呼消息以寻呼需要接收该MBS的各个UE，从而使得寻呼过程中的信令开销大。
发明内容
本申请实施例提供一种通信方法及通信装置，以降低通信***的信令开销。
第一方面，提供一种通信方法、相应的通信装置及通信***。该通信方法用于包括第一终端，网络设备的通信***中。接收来自网络设备的***信息；根据所述***信息确定寻呼时机计算标识，所述寻呼时机计算标识为终端的标识，或者所述寻呼时机计算标识为指示多播业务的标识；根据所述寻呼时机计算标识确定第一寻呼时机；在所述第一寻呼时机上接收多播业务的寻呼消息。在该方案中，第一终端通过***信息确定寻呼时机计算标识为该第一终端的标识或者为指示多播业务的标识，进一步根据该寻呼时机计算标识确定寻呼时机，并在该寻呼时机上接收多播业务的寻呼消息。通过***信息指示了接收多播寻呼消息的寻呼时机计算标识，在第一终端的标识对应的寻呼时机上接收多播寻呼消息有利于降低信令开销，在指示多播业务的标识对应的寻呼时机上接收多播寻呼消息有利于提升寻呼资源的利用效率。
在一种可选的实施方式中，根据***信息选择终端的标识或者指示多播业务的标识作为寻呼时机计算标识。通过接收到的***信息，第一终端判断使用哪个标识进行寻呼时机的确定，并在确定的寻呼时机上接收多播业务的寻呼消息，使能第一终端能够适配不同的寻呼方式，不同的接入网设备，提升了多播业务寻呼过程的可靠性。
在一种可选的实施方式中，所述根据所述***信息确定寻呼时机计算标识包括：如果所述***信息中包括多播业务相关的***信息，所述寻呼时机计算标识为所述终端的标识，或者如果所述***信息中包括第一指示信息，所述寻呼时机计算标识为所述终端的标识。在***信息包括多播业务相关的***信息，例如包括MBS相关的***信息快(System Information Block，SIB)时，或者当***信息包括第一指示信息时，第一终端在接收到***信息后，确定寻呼时机计算标识为终端的标识，或者在终端的标识和指示多播业务的标识中选择终端的标识作为寻呼时机计算标识，终端的标识例如为UE_ID或者为该UE对应的终端设备的临时标识(5G  S-temporary mobile subscriber identity，5G-S-TMSI)，或者为该UE对应的对应的5G全局唯一的临时UE标识(5G Globally Unique Temporary UE Identity，5G-GUTI)。
在一种可选的实施方式中，所述根据所述***信息确定寻呼时机计算标识包括：如果所述***信息中不包括多播业务相关的***信息，所述寻呼时机计算标识为所述指示多播业务的标识，或者如果所述***信息中不包括第一指示信息，所述寻呼时机计算标识为所述指示多播业务的标识。可选的，***信息为SIB的合集，第一终端根据***信息中不包括MBS相关的SIB确定寻呼时机计算标识为指示多播业务的标识，例如***信息不包括SIB13，或者不包括SIB15。或者，当***信息中不包括第一指示信息时，确定指示多播业务的标识作为寻呼时机计算标识。
在一种可选的实施方式中，第一终端根据***信息可以判断发送该***信息的接入网设备的类型，当接收到的***信息包括第一指示信息或者包括MBS相关的SIB时，接入网设备为指示多播寻呼或者说支持组寻呼的接入网设备，例如可以成称为MBS supporting node，该接入网设备具备多播寻呼功能，可以在单播寻呼对应的寻呼时机上向终端设备发送多播业务的寻呼消息，在这种情况下，第一终端无需为了接受多播业务的寻呼计算新的寻呼时机，因此第一终端确定寻呼时机计算标识为终端的标识，该标识对应的寻呼时机用于接受单播业务的寻呼消息。当接收到的***信息不包括第一指示信息或者不包括MBS相关的SIB时，发送该***信息的接入网设备为不支持多播寻呼或者是不支持组寻呼的接入网设备，例如可以称为non MBS supporting node或者为legacy node。可选的，该类型的接入网设备并不知道此次向第一终端发送的寻呼消息是多播寻呼消息还是单播寻呼消息，因此在指示多播业务的标识对应的寻呼时机上向第一终端发送多播业务的寻呼消息。
在一种可选的实施方式中，根据***信息确定寻呼时机计算标识时，除了在终端的标识和用于指示多播业务的标识中选择，还有可能在多播业务的业务标识和用于指示多播业务的标识中进行选择。多播业务的业务标识例如为组播广播业务会话标识(Identifier of the MBS session，MBS session ID)，或者为组播广播业务服务标识(Identifier of the MBS service，MBS service ID)。为多播寻呼消息对应的寻呼时机确定提供了更多选择。
在一种可选的实施方式中，所述第一指示信息用于指示无需为接收多播业务的寻呼消息确定新的寻呼时机。可选的，新的寻呼时机是指与终端接收单播业务寻呼消息所在的寻呼时机不同的寻呼时机。或者，新的寻呼时机是指采用终端的标识以外的新的标识作为寻呼时机计算标识确定的寻呼时机。第一指示信息指示第一终端在单播寻呼消息所在的单播寻呼时机上接收多播寻呼业务的寻呼消息。通过携带第一指示信息，第一终端在同样的寻呼时机上既接收单播业务的寻呼消息，也接收多播业务的寻呼消息，减少了终端设备接收多播业务的寻呼功耗开销。
可选的，第一指示信息为SIB中的预留比特，例如为1bit，取1时指示UE1确定UE1的标识作为寻呼时机计算标识，取0时，指示UE1确定指示多播业务的标识即第一标识作为寻呼时机计算标识，当然，也可以反过来。或者也可以通过取true/false来进行指示。或者，也可以通过第一指示信息是否于该***信息中来进行标识的指示，第一指示信息存在在***信息中则指示UE1确定指示多播业务的标识即第一标识作为寻呼时机计算标识，不存在则指示UE1确定UE1的标识作为寻呼时机计算标识。可选的，***信息为现有类型的SIB，或者***信息为新构建的SIB。
在一种可选的实施方式中，所述指示多播业务的标识为预配置的；或者所述指示多播业务 的标识为网络信令通知的；或者所述指示多播业务的标识为根据所述多播业务的业务标识得到的。可选的，预配置的方式下，该指示多播业务的标识可以为核心网设备提前预配置给第一终端的。该多播业务标识对应与第一终端将要接收的多播业务数据。可选的，网络信令通知的方式下，该网络信令可以为广播信令、非接入层(Non-Access Stratum，NAS)信令或者无线资源控制(Radio Resource Control，RRC)信令中的一种。可选的，根据多播业务的业务标识得到的可以是根据多播业务的业务标识和映射关系确定，这里的映射关系是指MBS的业务标识与指示多播业务的标识之间的对应关系。该映射关系可以是协议预定义的，或者可以通过用户业务描述(user service description，USD)确定，或者在多播数据分发过程(phases of multicast data provisioning)中的服务通知(service announcement)阶段，UE获知MBS与指示多播业务的标识的映射关系，或者在多播数据分发过程中的业务加入(session join)阶段获取映射关系。
在一种可选的实施方式中，所述寻呼时机计算标识为所述终端的标识，所述多播业务的寻呼消息包括所述多播业务的业务标识；或者所述寻呼时机计算标识为所述指示多播业务的标识，所述多播业务的寻呼消息包括所述指示多播业务的标识。。
当寻呼时机计算标识为UE1的标识时，多播业务的寻呼消息包括多播业务的业务标识，例如为MBS session ID，用于通知UE1被多播业务寻呼。当寻呼时机计算标识为指示多播业务的标识时，多播业务的寻呼消息包括指示多播业务的标识，例如为特殊取值的5G-S-TMSI。
在一种可选的实施方式中，
所述多播业务与终端集合相关关联，所述终端集合包括一个或多个终端，所述终端的标识为所述终端集合中的终端的标识，所述寻呼时机计算标识为所述指示多播业务的标识，所述第一寻呼时机对应的寻呼周期为第一寻呼周期，所述第一寻呼周期为所述终端集合中的一个或多个终端的不连续接收(discontinuous reception，DRX)周期的最小值。。
终端集合与多播业务关联是指终端集合中的终端设备对该多播业务感兴趣或者需要接收该多播业务。第一寻呼周期用于接入网设备周期性地发送多播业务的寻呼消息。终端集合中的终端设备的DRX周期为其接收单播业务寻呼消息的周期，选取集合中终端设备的DRX周期中的最小值可以保证集合中的终端设备均能以该周期进行多播业务寻呼消息的接收。
在一种可选的实施方式中，所述指示多播业务的标识与所述终端集合中的一个或多个终端的标识不同。指示多播业务的标识用于接入网设备与终端设备进行多播业务寻呼时机的计算，该表示与集合中的UE的标识不同可以避免寻呼时机计算中产生冲突。
在一种可选的实施方式中，所述方法还包括：所述第一终端发起随机接入过程，或者所述第一终端在非连接态接收来自所述第一网络设备的所述多播业务。
第一终端根据寻呼消息中携带指示多播业务的标识或者多播业务的业务标识确定被多播业务寻呼，在确定被多播业务寻呼后，第一终端还可以进一步发起随机接入过程接入网络后，进行多播业务的接收；或者第一终端可以直接在非连接态进行多播业务的接收。
第二方面，提供一种通信方法，相应的通信装置及通信***。发送***信息，所述***信息包括第一指示信息，或者所述***信息包括多播业务相关的***信息；根据第一终端的标识确定第一寻呼时机；在所述第一寻呼时机上向所述第一终端发送多播业务的寻呼消息。可选的，在指示多播业务的标识对应的寻呼时机上接收多播寻呼消息有利于提升寻呼资源的利用效率， 能够节省网络设备计算多播业务寻呼时机的开销。
在一种可选的实施方式中，所述第一指示信息用于指示无需为接收多播业务的寻呼消息确定新的寻呼时机。
在一种可选的实施方式中，所述方法还包括：接收来自核心网设备的第一信息，所述第一信息包括所述多播业务的业务标识和终端集合的标识列表，所述终端集合与所述多播业务关联，所述终端属于所述终端集合。
可选的，第一信息为下一代应用消息(Next Generation Application Protocol，NGAP)，或者第一信息为NGAP消息中的一部分。NGAP消息为核心网设备中接入和移动性管理功能(access and mobility management function，AMF)向网络设备发送的消息。
核心网设备通过向接入网设备发送多播业务的业务标识以及UE集合列表，可以通知接入网设备与多播业务对应的终端设备的集合，便于接入网设备对这些UE进行多播业务的寻呼。第一标识列表可选的可以为{UE1_ID,UE2_ID,…，UEN_ID}，第一标识列表也可以包括终端集合的各个UE对应的5G-S-TMSI。
在一种可选的实施方式中，所述第一寻呼时机还用于向所述第一终端发送单播业务的寻呼消息。
在一种可选的实施方式中，所述多播业务的寻呼消息包括所述多播业务的业务标识。
在一种可选的实施方式中，所述第一寻呼时机对应的寻呼周期为所述第一终端的不连续接收DRX周期。
在一种可选的实施方式中，所述方法还包括：所述终端集合还包括第二终端，根据第二终端的标识确定第二寻呼时机；在所述第二寻呼时机上向所述第二终端发送所述多播业务的寻呼消息，其中，所述第二寻呼时机对应的寻呼周期为所述第二终端的DRX周期
关于第二方面或第二方面的各种可选的实施方式及技术效果，可参考上述关于第一方面的介绍。
第三方面，提供一种通信方法，相应的通信装置及通信***。确定网络设备是否支持多播寻呼；当网络设备支持多播寻呼，向所述网络设备发送第一信息，所述第一信息包括多播业务的业务标识和终端集合的标识列表，所述终端集合与所述多播业务关联；当网络设备不支持多播寻呼，向所述网络设备发送第二信息，所述第二信息包括指示多播业务的标识。
在一种可选的实施方式中，所述方法还包括：向第一终端发送第一信令，所述第一信令包含所述指示多播业务的标识。可选的，第一信令为广播信令、NAS信令或者RRC信令中的一种。
在一种可选的实施方式中，所述指示多播业务的标识与所述终端集合中的终端设备的标识不同。
在一种可选的实施方式中，所述第二信息还包括第一寻呼周期，所述第一寻呼周期为所述终端集合中的终端设备的DRX周期的最小值。
关于第三方面或第三方面的各种可选的实施方式及技术效果，可参考上述关于第一、和/或第二方面的介绍。
第四方面，提供一种通信装置。该通信装置可以为上述第一至第三方面中任意一方面所述的终端设备，或者为配置在所述终端设备中的电子设备，或者为包括所述终端设备的较大设备。所述终端设备包括用于执行上述方法的相应的手段(means)或模块。例如，所述通信装置：包括处理单元(有时也称为处理模块)和收发单元(有时也称为收发模块)。其中，所述处理单元，用于通过所述收发单元接收来自第二网络设备的第一指示信息，并通过所述收发模块向所述第二网络设备发送所述第一指示信息的响应信息。
又例如，所述通信装置包括：处理器，与存储器耦合，用于执行存储器中的指令，以实现上述第一至第三方面任意一方面中终端设备所执行的方法。可选的，该通信装置还包括其他部件，例如，天线，输入输出模块，接口等等。这些部件可以是硬件，软件，或者软件和硬件的结合。
第五方面，提供一种通信装置。所述通信装置可以为上述第一至第三方面中任意一方面所述的接入网设备。所述通信装置具备上述接入网设备的功能。所述接入网设备：例如为基站，或为基站中的基带装置。一种可选的实现方式中，所述通信装置包括基带装置和射频装置。另一种可选的实现方式中，所述通信装置包括处理单元(有时也称为处理模块)和收发单元(有时也称为收发模块)。
所述处理单元，用于通过所述收发单元向第一终端发送***信息，并通过收发模块向所述第一终端发送多播业务的寻呼消息。
在一种可选的实现方式中，所述通信装置包括处理单元，用于与存储单元耦合，并执行存储单元中的程序或指令，使能所述通信装置执行上述接入网设备的功能。
第六方面，提供一种通信装置。所述通信装置可以为上述第二至第三方面中任意一方面所述的核心网设备。所述通信装置具备上述核心网设备的功能。一种可选的实现方式中，所述通信装置包括基带装置和射频装置。另一种可选的实现方式中，所述通信装置包括处理单元(有时也称为处理模块)和收发单元(有时也称为收发模块)。
所述处理单元，用于通过所述收发单元向接入网设备发送第一信息或第二信息，还可以通过收发模块向所述第一终端发送指示多播业务的标识。
在一种可选的实现方式中，所述通信装置包括处理单元，用于与存储单元耦合，并执行存储单元中的程序或指令，使能所述通信装置执行上述核心网设备的功能。
第七方面，提供一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序或指令，当其被运行时，使得上述各方面中终端设备，或第一网络设备，或第二网络设备所执行的方法被实现。
第八方面，提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得上述各方面所述的方法被实现。
附图说明
图1A为本申请实施例的一种通信***的示意图；
图1B为本申请实施例的一种应用场景的示意图；
图1C为本申请实施例的另一种应用场景的示意图；
图2为本申请实施例的另一种通信***的简化示意图；
图3为本申请实施例提供的通信方法的流程图；
图4为本申请实施例提供的多播业务的业务标识信元结构示意图；
图5为本申请实施例中寻呼时机计算标识为第一终端的标识的示意图；
图6为本申请实施例中寻呼时机计算标识为指示多播业务的标识的示意图；
图7为本申请实施例提供的通信方法的另一种流程图；
图8为本申请实施例提供的通信方法的再一种流程图；
图9为本申请实施例提供的终端设备的一种示意性框图；
图10为本申请实施例提供的通信装置的一种示意性框图；
图11为本申请实施例提供的网络设备的一种示意性框图。
具体实施方式
本申请公开的方案可应用于图1A所示的通信***1000。如图1A所示，该通信***包括无线接入网100和核心网200，可选的，通信***1000还可以包括互联网300。其中，无线接入网100可以包括至少一个网络设备(如图1中的110a和110b，统称为110)，还可以包括至少一个终端(如图1中的120a-120j，统称为120)。终端120a-120j通过无线的方式与网络设备110a，110b相连，网络设备110a，110b通过无线或有线方式与核心网200连接。核心网中的网络设备与无线接入网中的网络设备可以不同的物理设备，也可以是将核心网的功能与无线接入网的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网的功能和部分的无线接入网的功能。终端和终端之间以及网络设备和网络设备之间可以通过有线或无线的方式相互连接。图1只是示意图，该通信***中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未示出。所述通信***例如可以支持第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的蜂窝***(例如5G通信***，或支持多种无线技术融合的通信***(例如2G、3G、4G、或5G融合的通信***)，或者是面向未来的演进***(例如6G接入技术))，或者无线保真(wireless fidelity，WiFi)***，或者是3GPP相关的蜂窝***与其他技术融合的通信***等。
本申请中的网络设备，有时也成为网络节点。所述网络设备包括接入网设备，和/或核心网设备。所述接入网设备具有无线收发功能，用于与终端进行通信。所述接入网设备包括但不限于上述通信***中的基站(base station)、演进型基站(evolved NodeB，eNodeB)、发送接收点(transmission reception point，TRP)、5G移动通信***中的下一代基站(next generation NodeB，gNB)、第六代(6th generation，6G)移动通信***中的下一代基站、未来移动通信***中的基站或WiFi***中的接入节点等；也可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，或者分布式单元(distributed unit，DU)等。所述接入网设备可以是宏基站(如图1中的110a)，微基站或室内站(如图1中的110b)，中继节点或施主节点，或者是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。所述接入网设备还可以是服务器，可穿戴设备，或车载设备等。例如，V2X技术 中的接入网设备可以为路侧单元(road side unit，RSU)。以下对接入网设备以基站为例进行说明。所述通信***中的多个网络设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端进行通信，也可以通过中继站与终端进行通信。终端可以与不同接入技术中的多个基站进行通信。所述核心网设备用于实现移动管理，数据处理，会话管理，策略和计费等功能。不同接入技术的***中实现核心网功能的设备名称可以不同，本申请并不对此进行限定。以5G***为例，所述核心网设备包括：访问和移动管理功能(access and mobility management function，AMF)、会话管理功能(session management function，SMF)、或用户面功能(user plane function，UPF)等。
终端也可以称为终端设备、用户设备(user equipment，UE)、移动台、移动终端等。终端可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。
基站和/或终端可以是固定的，也可以是可移动的。基站和/或终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对基站和终端的应用场景不做限定。
基站和终端的角色可以是相对的，例如，图1中的直升机或无人机120i可以被配置成移动基站，对于那些通过120i接入到无线接入网100的终端120j来说，终端120i是基站；但对于基站110a来说，120i是终端，即110a与120i之间是通过无线空口协议进行通信的。装置110a与装置120i之间也可以是通过基站与基站之间的接口协议进行通信的，此时，相对于装置110a来说，120i是基站。因此，基站和终端都可以统一称为通信装置，图1中的110a和110b可以理解为具有基站功能的通信装置，图1中的120a-120j可以理解为具有终端功能的通信装置。
在本申请中，具有基站功能的通信装置可以是基站，或者基站中的模块(如芯片，或芯片***)，或者包含有基站功能的控制子***。例如，含有基站功能的控制子***可以是智能电网、工业控制、智能交通、或智慧城市等上述终端的应用场景中的控制中心。具有终端功能通信装置，可以是终端，或者终端中的模块(如芯片、芯片***或调制解调器等)，或者是包含有终端功能的装置。在本申请中，为便于描述，后续以基站或BS,终端或UE为例进行说明。
可以理解的是，为了实现后续实施例中的功能，基站和终端包括了执行各个功能相应的硬件模块、软件模块、和/或固件模块。结合本申请中所公开的内容，本领域的技术人员可以理解，本申请能够以硬件、或软件、或固件，或其任意结合的形式来实现。
图1B和1C示出了本申请提供的通信***1000的简化的网络架构示意图。如1B所示，无线接入网中的网络设备可以包括集中单元(centralized unit，CU)和分布单元(distributed unit，DU)。一个CU可以控制一个或多个DU。CU和DU可以根据其具备的无线网络的协议层功能进行划分，例如PDCP(packet data convergence protocol)层及以上协议层的功能设置在CU，PDCP以下的协议层，例如RLC(radio link control)层和MAC(medium access control)层 等的功能设置在DU。需要说明的是，这种协议层的划分仅仅是一种举例，还可以在其它协议层划分。射频装置可以拉远，不放在DU中，也可以集成在DU中，或者部分拉远部分集成在DU中，本申请不作任何限制。相对于图1B所示的网络架构，图1C所示的网络架构中，可以CU的控制面(CP)和用户面(UP)分离设置，由不同网络实体来实现，即，分别为控制面CU实体(CU-CP实体)和用户面CU实体(CU-UP实体)。在该网络架构中，CU产生的信令可以通过DU发送给UE，或者UE产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装而透传给UE或CU。在该网络架构中，将CU划分为作为RAN侧的网络设备，此外，也可以将CU划分作为CN侧的网络设备，本申请对此不做限制。
参考图2，提供了一种通信***的简化示意图。基站BS 110包括接口111和处理器112。可选的，处理器112用于执行程序114。处理器112可以存储程序114，或者从其他设备获取程序114。可选的，BS 110包括存储器113。存储器113用于存储程序115。程序115可以是预先存储，也可以是后续加载。终端UE 120包括接口121和处理器122。可选的，处理器122用于执行程序124。处理器122可以存储程序124，或者从其他设备获取程序124。UE 120可选地还可以包括存储器123。存储器123用于存储程序125。程序125可以是预先存储，也可以是后续加载。这些组件一起工作以提供UE 120和/或BS 110在本公开中描述的各种功能。例如，处理器112和接口121一起工作以提供BS 110和UE 220之间的无线连接。处理器122和接口121协同工作，实现UE 120的下行传输和/或上行传输。
网络130可以包括一个或多个网络设备130a、130b(统称为130)以提供核心网功能。网络设备130可以是下一代(例如第六代(6G)或更高版本)核心网节点，或传统(例如5G、4G、3G或2G)核心网节点。例如，网络130可以是接入管理功能(AMF)、移动管理实体(MME)等。网络130还可以包括公共交换电话网络(PSTN)、分组数据网络中的一个或多个网络节点，光网络、IP网络、广域网(WAN)、局域网(LAN)、无线局域网(WLAN)、有线网络、无线网络、城域网，以及其他网络，以启用UE 120和/或BS 110之间的通信。
处理器112、122可以包括一个或多个处理器，以作为计算设备的组合。处理器112和/或处理器122可以分别包括以下中的一个或多个：微处理器、微控制器、数字信号处理器(DSP)、数字信号处理设备(DSPD)、，专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(PLD)、门控逻辑、晶体管逻辑、分立硬件电路、处理电路或其他合适的硬件、固件，和/或配置为执行本公开中描述的各种功能的硬件和软件的组合。处理器112、122可以是通用处理器或专用处理器。例如，处理器112、122可以是基带处理器或中央处理器。基带处理器可以用于处理通信协议和通信数据。中央处理器可以用于使BS 110和/或UE 120执行软件程序，并处理软件程序中的数据。
接口111、121可以包括用于使能与一个或多个计算机设备(例如UE、BS和/或网络设备)通信的任何合适硬件或软件。例如，在一些实施例中，接口111、121可以包括用于耦合有线连接的电线或耦合无线连接的无线电收发器的端子和/或引脚。在一些实施例中，接口111、121可以包括发射器、接收器、收发器和/或天线。该接口可以被配置为使用任何可用的协议(例如3GPP标准协议)使能计算机设备(例如UE、BS和/或网络节点)之间的通信。
本申请中的程序是指广泛意义上的软件。所述软件可以是程序代码、程序、子程序、指令集、代码、代码段、软件模块、应用程序、软件应用程序等。该程序可以在处理器和/或计算 机中运行，以使BS 110和/或UE 120执行本申请中描述的各种功能和/或过程。
存储器113、123可以存储在处理器112、122执行软件时所需的必要数据。存储器113、123可以使用任何合适的存储技术来实现。例如，存储器113、123可以是处理器和/或计算机可以访问的任何可用存储介质。存储介质的非限制性示例有：RAM、ROM、EEPROM、CD-ROM、可移动介质、光盘存储器、磁盘存储介质、磁存储设备、闪存、寄存器、状态存储器、远程安装存储器、本地或远程存储器组件，或任何其他可以携带或存储软件、数据或信息并可由处理器/计算机访问的介质。
存储器113、123和处理器112、122可以分开设置，也可以集成在一起。处理器112、122可以从存储器113、123读取信息，存储和/或写入存储器中的信息。存储器113可以集成在处理器112中。存储器123可以集成在处理器122中。处理器112、122和存储器113、123可以设置在集成电路(例如ASIC)中。所述集成电路可以设置在UE或BS或其他网络节点中。
为便于理解本申请实施例，下面首先对本申请中涉及的相关技术做简单介绍。
1.UE状态。
在4G***中，根据RRC(Radio Resource Control)的连接状态，分为RRC连接态和RRC空闲态，UE开机并未与无线网络建立连接时，成为UE处于空闲态。当UE有数据要接收或者发送时，需要与无线网络建立连接，即UE需进入连接态才能进行数据收发。5G网络保留了RRC空闲态和RRC连接态的概念，除此之外，5G还新增一个连接状态，即RRC去激活态，这三个状态之间可以相互转换。对于RRC连接态(RRC_CONNECTED)，RRC空闲态(RRC_IDLE)，RRC inactive态(RRC_INACTIVE)的相关描述可以参照3GPP TS 38.300标准。
2.寻呼过程。
当有业务数据到达时，网络需要寻呼UE。由gNodeB通过空口下发给UE，处于RRC_IDLE状态或者处于RRC_INACTIVE态的UE，在UE对应的空口时域位置接收寻呼消息，UE通过监听解析相应寻呼DCI，根据DCI指示的内容获知UE是否被寻呼。相应的空口时域位置以寻呼帧PF(Paging Frame)和寻呼时机PO(Paging Occasion)来表示。PF是1个无线帧，表示寻呼起始帧，包含多个完整的PO。PO是1套PDCCH监听机会，由多个slot组成。1个PO的长度等于一个波束扫描周期(对应多个波束)，在每个波束上发送的寻呼Paging消息相同。
PF和PO的满足如下关系：
PF的***帧号(System Frame Number，SFN)：
(SFN+PF_offset)mod T＝(T div N)*(UE_ID mod N)    (1)
PO的i_s：i_s＝floor(UE_ID/N)mod Ns    (2)
PO的i_s指示了一套PDCCH监听机会的起始位置，UE从第i_s个PO开始接收寻呼消息。
其中：T为UE的DRX周期(即寻呼周期)，PF_offset为PF的帧偏置，N为寻呼周期T包含的PF个数，UE_ID为UE的标识，Ns为PF包含的PO个数。
图3示出了本申请实施例提供的一种通信方法。
S301.网络设备(例如基站)向终端UE发送***信息。相应的，UE接收来自网络设备 的***信息。
在本实施例中，终端UE表示与网络设备通信的相对方，表示一个或多个UE。当为了区分不同的UE，可以将不同的UE标记为UE 1,UE 2,UE 3…。对应于UE 1,UE 2，UE 3…分别收到的来自网络设备的***信息可以记为***信息1，***信息2，***信息3…。
网络设备可以将***信息携带在无线资源控制(Radio Resource Control，RRC)消息中发送给UE，或者网络设备通过广播的方式向UE发送***信息。
S302.UE根据***信息确定寻呼时机计算标识。所述寻呼时机计算标识为UE的标识，或者所述寻呼时机计算标识为第一标识。所述第一标识用于指示多播业务(MBS)的标识。
在一种实现方式中，UE根据***信息确定寻呼时机计算标识具体为：UE根据***信息在UE的标识和第一标识中选择一个标识作为寻呼时机计算标识。可选的，UE的标识是网络设备预配置的或者通过网络信令发送给UE，例如通过5G临时移动用户标识5G S-Temporary Mobile Subscription Identifier(5G-S-TMSI)指给UE。
所述寻呼时机计算标识用于确定MBS的寻呼时机。寻呼消息的接收时间与寻呼时机计算标识与有关。例如，寻呼帧PF和寻呼时机PO与寻呼时机计算标识有关。
需说明的是，本申请中寻呼时机可理解为用于表示寻呼相关的时域位置，即寻呼时机包括寻呼帧号PF和监听机会的起始位置PO的i_s。
UE的标识可以记为UE_ID。例如，对于UE 1，其标识可以记为UE 1_ID,对于UE 2，其标识可以记为UE 2_ID，依次类推，本申请对于表现形式不做限定。在一种可能的实施方式中，UE_ID可以根据UE的临时标识获得。例如，所述临时标识为5G-S-Temporary Mobile Subscriber Identity(5G-S-TMSI)。所述UE_ID满足：UE_ID＝5G-S-TMSI mod 1024。网络设备尽可能为不同的UE分配不同的5G-S-TMSI，即UE_ID尽可能不同，这保证了对于不同UE基于不同UE_ID的寻呼时机尽可能不同。例如，将多个UE离散的(例如，均匀的)分配到不同寻呼时机上，避免单个寻呼时机上UE数目过多，造成网络寻呼压力。可选的，UE的标识为UE对应的5G-S-TMSI，或者为UE对应的5G全局唯一的临时UE标识5G-GUTI。
需说明的是，本申请中的MBS可作广义理解，是指多播业务，组播业务，或广播业务，或其任意组合。所述第一标识用于指示(明示或暗示)或者用于标识MBS。UE可在基于所述第一标识确定的寻呼时机上接收到该MBS的寻呼消息。例如，所述第一标识可以是指示多播业务的标识，用于指示多播业务。又例如，所述第一标识可以是指示组播业务的标识，用于指示组播业务。再例如，所述指示MBS的标识可以是指示广播业务的标识，用于指示广播业务。MBS是面向多个终端的业务，例如车联网业务、软件下载业务、现场直播、定时节目播放等，通过基站同时向多个UE发送MBS。
所述第一标识的实现方式有多种。例如，可以使用现有的标识，或对现有标识改进以实现对MBS的指示，还可以构建或定义新的标识来指示MBS。
一种实现方式中，将现有标识的信息域或部分信息域视为第一标识，从而可以利用已有的信息结构，而无需配置新的信令。例如，可以利用全局唯一临时用户标识，例如5G Globally Unique Temporary UE Identity(5G-GUTI)，或者，5G S-Temporary Mobile Subscription Identifier(5G-S-TMSI)，或者其他的标识，来实现对MBS的指示。所述5G-S-TMSI是5G-GUTI的缩短形式，用于更有效的无线信令过程(例如在寻呼和业务请求过程中)
对于5G-GUTI和5G-S-TMSI的结构定义，可以参照3GPP TS 23.501标准。5G-GUTI的 结构如下：
<5G-GUTI>＝<GUAMI><5G-TMSI>
其中，<GUAMI>＝<MCC><MNC><AMF Identifier>
<AMF Identifier>＝<AMF Region ID><AMF Set ID><AMF Pointer>
5G-S-TMSI的结构如下：
<5G-S-TMSI>＝<AMF Set ID><AMF Pointer><5G-TMSI>
其中MCC表示移动国家码(mobile country code)，MNC表示移动网络码mobile network code。AMF Region ID用于标识区域,例如为8bits。AMF Set ID唯一标识AMF区域内的AMF集合。AMF Pointer标识AMF集合内的一个或多个AMF。5G-TMSI用于在AMF内唯一标识UE。例如AMF Set ID为10bit,AMF Pointer为6bits,5G-TMSI为32bits,则5G-S-TMSI为48bits。
在一种实现方式中，当使用5G-GUTI或者使用5G-S-TMSI作为第一标识时，可以将5G-S-TMSI的取值配置或预定为给定的值，使其与其他用于标识UE的取值区分。通过设计，用于指示MBS的5G-S-TMSI的取值与分配给UE用于确定UE_ID的5G-S-TMSI不同，避免了相同的5G-S-TMSI标识既用于标识MBS，又用于标识UE而引起的冲突。对于给定特殊取值的5G-S-TMSI可以用于指示MBS，称为特殊的5G-S-TMSI。例如，分配给众多终端的5G-S-TMSI的取值范围为区间1，而用于指示MBS的5G-S-TMSI的取值范围可以避开区间1。
可以通过多种方式实现对第一标识的设计。例如：
(1)当5G-S-TMSI中AMF Set ID对应的bit位取特殊值时，该5G-S-TMSI记为特殊5G-S-TMSI，该特殊5G-S-TMSI中除AMF set ID以外的其他bit位用于表示MBS service ID。例如AMF set ID对应的比特位取全1值时，该5G-S-TMSI即为特殊5G-S-TMSI，AMF pointer和5G-TMSI所占用的bit位的取值用来表示MBS service ID；或者AMF set ID对应的比特位中前5个bit位取全1值时，该5G-S-TMSI即为特殊5G-S-TMSI，5G-S-TMSI对应的比特位中其他43bit的取值用于指示MBS service ID。
(2)当5G-S-TMSI对应的bit中部分bit位取特殊值时，该5G-S-TMSI记为特殊5G-S-TMSI。可以定义特殊值与MBS之间的映射关系(例如如下表1所示)，建立该特殊5G-S-TMSI与MBS service ID之间的关联关系。例如AMD set ID取全1值时，该5G-S-TMSI为所述的特殊5G-S-TMSI，并且对应映射关系1，AMF pointer和5G-TMSI对应的bit位的取值用来表示MBS service ID，如下表1所示。AMD set ID取全0值时，此时该5G-S-TMSI即为所述的特殊5G-S-TMSI，并且对应映射关系2，AMF pointer和5G-TMSI所占用的bit位用来表示的MBS service ID。可选的，映射关系2与映射关系1不同，例如在映射关系2中，MBS1对应标识2，MBS2对应标识1。需要指出的是，虽然不同映射表可以用不同的特殊值表示，如上文所述AMD set ID的取值，但不排斥其他方法来表明不同映射表的存在，例如网络参数配置，所在频段配置为FR1时，对应映射关系1，所在频段配置为FR2时，对应映射关系2,类似的，还可以使用FDD/TDD，或者子载波间隔来指示映射关系。
(3)通过核心网CN管理第一标识，例如CN预留某个特殊的5G-S-TMSI实例表示MBS  service实例，并且CN在分配给UE正常的5G-S-TMSI时，需要避免使用该特殊的5G-S-TMSI实例。
UE可以通过多种方式获取第一标识。例如：
方式一.第一标识为预定的，例如是预配置或者通过标准协议约定。例如，为核心网设备预先为UE分配MBS的标识，该MBS的标识对应于UE将要接收的MBS数据。例如，在会话加入session join之前，给网络设备预配置各多播业务分别对应的指示多播业务的标识，这样，在UE完成session join过程后可根据预配置信息确定指示多播业务的标识。多播数据分发过程(phases of multicast data provisioning)包括服务通知，会话加入UE session Join，会话建立Session Establishment，数据传输Data Transfer等过程。
方式二.第一标识为网络设备通过信令指示给UE的。例如，通过广播信令、NAS信令或者RRC信令等，所述信令中携带或隐含指示第一标识，或者指示UE各MBS与第一标识的映射关系。例如，在session join之后，针对UE要接收的多播业务向UE发送多播业务的标识，能够节省开销。
可选地，UE确认需要加入的MBS，例如UE在收到service announcement后确认需加入MBS。UE发起相应会话加入过程。例如，在UE Session Join过程中，网络设备通过信令指示该MBS所对应的MBS第一标识。
方式三.第一标识为根据所述MBS的业务标识(MBS service ID)得到的。
A.UE根据MBS service ID和映射关系确定指示该MBS的标识，这里的映射关系是指MBS的业务标识与指示MBS的标识之间的对应关系，即MBS的业务标识与第一标识之间的映射关系，该第一标识用于计算MBS寻呼消息的接收时机。
下表1示出了MBS service ID与第一标识之间映射关系的一种举例。在该例子中，第一标识用5G-S-TMSI来表示该映射关系可以为一对一，或者为一对多，例如，当MBS种类较多的时候，一个5G-S-TMSI可以对应两个或者以上的MBS service ID，该两种以上的MBS对应的指示MBS的标识相同，即共享同样的寻呼时机，有利于提升MBS寻呼的效率。
表1
MBS service ID 第一标识
MBS1(例如，车联网业务) 标识1(例如，5G-S-TMSI_1)
MBS2(例如，软件下载业务) 标识2(例如，5G-S-TMSI_2)
…… ……
对应关系或映射关系的获取方式有包括以下可能：
A1.该对应关系或者映射关系可以是预先配置或由协议预定义的。UE根据该对应关系以及MBS的业务标识确定与之对应的第一标识。
A2.通过用户业务描述USD(user service description)，UE可以获取各个MBS的开始时间，所在频段等信息，在USD中配置包括MBS与第一标识的映射关系，如此UE可以通过USD，获知MBS与第一标识的映射关系。
A3.在服务通知service announcement阶段，UE获知MBS与第一标识的对应关系。多播数据分发过程(phases of multicast data provisioning)包括服务通知，UE会话加入UE sessionJoin，会话建立Session Establishment，数据传输Data Transfer等过程。
A4.在业务加入session join阶段，UE获知MBS与第一标识的对应关系。
可选的，网络通过***信息广播，将MBS标识与第一标识的映射关系指示给UE。该映射关系承载于***信息中。所述映射关系可以是通过广播控制信道(broadcast control channel, BCCH)发送给UE，可选地，该映射关系还可以是通过组播控制逻辑信道(multicast control channel,MCCH)、组播业务逻辑信道(multicast traffic channel,MTCH)发送给UE。
B.UE根据MBS的业务标识和预定的规则确定对应的第一标识。UE知道核心网设备基于预定义的方法构建第一标识。一种可能的实现方式中，第一标识长度为48bit，当第一标识中部分bit，例如前24bit为特殊值时，则第一标识中其他部分bit(例如后24bit，或者后24bit中的部分bit)表示MBS。例如MBS用临时组织移动标识(Temporary Mobile Group Identity，TMGI)中的MBMS service ID部分表示。图4示出了TMGI的信元结构，其中包括MBMS Service ID字段，例如，可以占用24个bit，该字段的取值用于指示MBS。所以当UE确定MBS的业务标识时，也可以基于上述预定的规则，确定该MBS对应的第一标识。例如，预定义的方法：第一标识为MBMS service ID前加上一定bit数的特殊取值，例如24bit的1与MBMS service ID组合起来为第一标识，第一标识去掉前24位为MBMS service ID，则UE可以在MBS的业务标识前加上24bit的1，得到第一标识。可选的，UE可以通过预配置方式，或者USD，或者在服务通知阶段确定要接收的多播业务是哪一种，即是要接收车联网业务数据还是软件下载数据，例如，TMGI可以通过预配置方式告知UE。
具体的，UE根据***信息确定寻呼时机计算标识，或者UE根据***信息选择UE的标识或者选择第一标识作为寻呼时机计算标识。
一种可能的实现方式中，UE基于***信息中是否包括与MBS相关的***信息块(system information block,SIB)来确定寻呼时机计算标识。如果***信息中包括与MBS相关的SIB，UE确定寻呼时机计算标识为UE的标识；如果***信息中不包括MBS相关的SIB，UE确定寻呼时机计算标识为第一标识(即用于指示MBS的标识)。
当网络设备向UE发送的***信息包括与MBS相关的SIB时，相当于向UE指示在接收MBS的寻呼时无需计算新的寻呼时机，或者可以认为向UE指示使用单播业务寻呼时机接收MBS的寻呼消息。可选的，新的寻呼时机是指与第一终端接收单播业务寻呼消息所在的寻呼时机不同的寻呼时机。或者，新的寻呼时机是指采用第一终端的标识以外的新的标识作为寻呼时机计算标识确定的寻呼时机，在某种情况下，虽然寻呼时机计算标识和UE的标识不同，但是经过公式1中取模等计算后，得到的寻呼时机也可能相同。该指示方式为隐式指示。UE通过***信息中的是否有相关类型的SIB判断使用终端标识还是第一标识作为寻呼时机计算标识来计算PO。例如，***信息为***信息的集合，包括两个或以上***信息SIB，当***信息包括MBS相关的SIB，例如包括SIB13、SIB15或SIB20等类型的SIB时，UE确定寻呼计算标识为UE的标识。
另一种可能的实现方式中，UE基于***信息中是否包括指示信息来确定寻呼时机计算标 识。如果***信息包括第一指示信息，UE确定寻呼时机计算标识为UE的标识，如果***信息中不包括第一指示信息，UE确定寻呼时机计算标识为第一标识(即用于指示MBS的标识)。
如果***信息中包括第一指示信息，UE选择寻呼时机计算标识为UE的标识。第一指示信息用于指示无需为接收MBS的寻呼消息确定新的寻呼时机。例如，可以将SIB中的预留比特作为第一指示信息，例如为1bit，取1时指示UE确定将UE的标识作为寻呼时机计算标识，取0时，指示UE确定将第一标识作为寻呼时机计算标识，反之亦然。或者也可以通过取true/false来进行指示。或者，也可以通过该***信息中是否包括第一指示信息来进行指示。若***信息包括第一指示信息，则指示UE确定第一标识作为寻呼时机计算标识，若***信息不包括第一指示信息，则指示UE确定UE的标识作为寻呼时机计算标识，反之亦然。例如，如果信元中包括setupRelease{第一指示信息}，代表该第一指示信息不存在于***信息中。所述***信息可以为现有类型的SIB，或者所述***信息为新定义的SIB。
如果设备向UE发送的***信息不包括与MBS相关的SIB，相当于向UE指示需使用新的寻呼时机接收MBS的寻呼，或者可以认为向UE指示使用MBS寻呼时机接收MBS的寻呼消息。
可选的，第一***信息还用于指示发送该***信息的网络设备的类型。所述类型包括：支持组寻呼，和/或不支持组寻呼。
对于支持组寻呼的网络设备，可称为MBS supporting node。该类型的网络设备可以采用组寻呼的方式，在每个UE的单播的PO上向UE发送组寻呼消息，对于UE来说，在相同的PO上接收单播和组播的寻呼消息，提升了资源的利用效率，节省了开销。可选的，还能进一步节省网络设备计算多播业务寻呼时机的计算开销。
对于不支持组寻呼的网络设备，可以称为non-MBS Supporting node或Legacy node。该类型的网络设备不具有进行多播寻呼或组寻呼的功能，对于该类型的网络设备，接收来自核心网设备的指示多播寻呼的标识，即为第一标识，在第一标识对应的PO上发送MBS的寻呼消息。该类型的网络设备并不一定需要识别第一标识。例如，可以将第一标识设计为与其他UE的标识的结构及所在信息域一致，对于不支持组寻呼的网络设备而言，接收到第一标识后，可以无需知道第一标识用于指示MBS，按照现有legacy paging流程进行处理。而，对应的UE确定第一标识后，可以在第一标识对应的PO上接收寻呼消息。采用这种方式，可以无需改变基站现有的处理流程，也能实现多播寻呼的需求。
可选的，若***信息中包括与MBS相关的SIB，UE确定该网络设备支持多播寻呼，UE确定UE的标识为寻呼时机计算标识。若***信息中不包括与MBS相关的SIB，UE确定该网络设备不支持多播寻呼，确定第一标识为寻呼时机计算标识。
可选的，若***信息包括第一指示信息，UE确定该网络设备支持多播寻呼，确定UE的标识为寻呼时机计算标识。若***信息不包括第一指示信息，UE确定该接入网设备不支持多播寻呼，UE确定第一标识为寻呼时机计算标识。
S303.UE根据寻呼时机计算标识确定第一寻呼时机。
第一UE使用在302中确定的寻呼时机标识计算第一寻呼时机。
寻呼时机计算标识，记为Paging_ID，一种实现方式中，寻呼时机计算标识满足以下关系：：
(SFN+PF_offset)mod T＝(T div N)*(Paging_ID mod N)    (3)
i_s＝floor(Paging_ID/N)mod Ns    (4)
其中，i_s指示了一套PDCCH监听机会的起始位置，UE从第i_s个PO开始接收寻呼消息。T为UE的DRX周期(即寻呼周期)，PF_offset为PF的帧偏置，N为寻呼周期T包含的PF个数，Ns为PF包含的PO个数。
可选的，上述公式(3)和公式(4)中的Paging_ID取值为Paging_ID或者取值为Paging_ID mod 1024。
S304.网络设备在第一寻呼时机上向UE发送MBS的寻呼消息。相应的，UE在第一寻呼时机上接收MBS的寻呼消息
寻呼时机计算标识为UE的标识，MBS的寻呼消息包括MBS的业务标识。UE1根据MBS的寻呼消息中携带的MBS的业务标识，例如MBS service ID或者MBS session ID，确定被MBS寻呼。
寻呼时机计算标识为指示MBS的标识，MBS的寻呼消息包括指示MBS的标识。UE1根据MBS的寻呼消息中携带的指示MBS的标识，即第一标识，例如为特殊取值的5G-S-TMSI，确定被MBS寻呼。
可选的，寻呼消息是周期性发送的，即UE1确定第一寻呼时机后，周期性地接收来自接入网设备的MBS的寻呼消息。
如果寻呼时机计算标识为UE的标识，则第一寻呼时机对应的寻呼周期为所述UE的不连续接收DRX周期。
如图5所示，当寻呼时机计算标识为UE的标识时，第一寻呼时机与UE接收单播寻呼消息的寻呼时机PO相同，即UE监听该PO，可以在该PO上既接收单播寻呼消息，也接收多播寻呼消息，减少了UE接收MBS的寻呼功耗开销。当PO上接收的消息携带MBS标识时，UE确定被MBS而非单播业务寻呼。单播和多播共用相同的寻呼时机，其寻呼周期也可以相同，或者MBS的寻呼消息的周期为N倍的单播业务的寻呼周期，即MBS寻呼周期为N*T DRX。
所述寻呼时机计算标识为所述指示MBS的标识，第一寻呼时机对应的寻呼周期为第一寻呼周期。
第一寻呼周期的确定有以下可能的方式：
方式A：寻呼周期作为一个MBS寻呼周期，由核心网设备决定。在MBS数据到达用户面功能(User Plane Function，UPF)，核心网设备CN(例如核心网设备中的网元AMF)需要寻呼MBS UE时，CN发送NG paging消息给接入网设备，该paging消息内容可以包括：UE寻呼标识(此时为第一标识)，UE DRX cycle(用以计算该UE的寻呼时机，此时为MBS寻呼周期)。此时UE1获取该寻呼周期的方法可以是NAS信令，例如，在registration或者TAU过程中随正常DRX周期一起下发给UE1。或者通过RRC信令获取，例如，MBS寻呼周期作为MBS的配置信息一部分，由网络通过RRC信令或者SIB或者MCCH告知UE。
方式B：寻呼周期与UE单播业务消息的寻呼周期一致，也即不再额外配置用于MBS的寻呼周期。
方式C：第一寻呼周期为UE集合中的一个或多个UE的不连续接收DRX周期的最小值。所述UE集合与所述MBS关联。图3中所示的UE属于该UE集合。该UE集合包括一个或多个UE，例如UE 1,UE 2，UE 3…。第一寻呼周期取该UE集合中的UE的DRX周期的最小值，可以保证UE集合中的UE均能接收到来自接入网设备的多播寻呼消息。
在图6中，第一标识被确定为寻呼时机计算标识。UE根据该第一标识计算获得第一寻呼时机，并在第一寻呼时机上接收MBS的寻呼消息，例如第一寻呼时机用于UE 1接收MBS1的寻呼消息，同时该第一寻呼时机还用于UE 2接收MBS1的寻呼消息。需说明的是，MBS1,MBS2,MBS3…中的1,2,3仅用于表示某个MBS，以区分不同的多播业务。
MBS1与UE集合关联，可以理解为该UE集合为想接收MBS1业务的UE的集合。换句话说，UE集合中的UE均对MBS1业务感兴趣。UE1与UE2的用户标识不同，因此UE 1与UE 2接收单播业务的PO可能不同，原因在于用户标识虽然不同，但是经过公式(1)中对用户标识取mod之后得到的寻呼时机可能相同。UE1与UE2同属于第一UE集合，因此UE2也根据相同的寻呼时机计算标识确定第一寻呼时机，即UE 1与UE 2在相同的第一寻呼时机上接收MBS1的寻呼消息。UE 1与UE 2还需要监听其各自的单播寻呼，对应的PO根据正常的5G-S-TMSI决定，DRX周期则通过注册(registration)或者跟踪区更新(tracking area update,TAU)过程完成DRX周期协商，从而获取各自的DRX周期。
网络设备在一个PO上发送MBS的寻呼消息，与该MBS关联的一个或者多个UE在该PO上接收该MBS的寻呼消息，节省了计算MBS寻呼时机的计算开销。
图6中，第一寻呼时机与UE 1接收单播寻呼消息的PO不同，可选的，在某些场景中，虽然用于确定第一寻呼时机的寻呼时机计算标识与UE 1的标识不同，经过PO计算公式得到的二者对应的PO也可能相同。
所述第一标识与所述UE集合中的一个或多个UE的标识不同，因此基于第一标识，与基于UE的标识确定的PO不同，避免网络设备在相同的PO上对一个UE(例如UE 1)进行单播寻呼，对另一个UE(例如UE 2)进行多播寻呼从而产生冲突。
可选的，该方法还可以进一步包括步骤S305.
S305.UE发起随机接入过程与网络设备建立连接，或者UE在非连接态接收来自所述接入网设备的所述MBS。该MBS数据可以通过组播控制逻辑信道MCCH读取，或者组播业务逻辑信道MTCH获得。
可选的，上述方法步骤流程中涉及UE的标识的内容，UE的标识可以替换为MBS sessiom ID或者MBS service ID。
例如，UE1根据第一信***信息在MBS session ID以及指示多播业务的标识中确定寻呼时机计算标识。多播业务的寻呼消息中可以携带MBS session ID用于指示UE该寻呼消息为多播业务寻呼消息。
在本实施例中，UE根据网络设备发送的***信息确定或者选择寻呼时机计算标识，从而可以基于所述寻呼时机计算标识获得接收多播寻呼消息的寻呼时机。如果***信息包括第一指示信息或者包括MBS相关SIB时，UE基于UE的标识对应的寻呼时机接收MBS的寻呼消息，从而使得UE在接收单播寻呼的寻呼时机，也能接收MBS的寻呼，减少了UE接收MBS的寻 呼功耗开销。如果***信息不包括第一指示信息或者不包括MBS相关SIB时，UE基于第一标识对应的寻呼时机接收MBS的寻呼消息，此时，该寻呼时机可以被MBS关联的多个UE共享，提升了***寻呼资源的利用效率。
图7示出了本发明实施例提供的一种通信方法。相较于图3所示的实施例来说，图7所示的实施例增加了与核心网设备的交互，并在图3所示的实施例的基础上进一步提供了多个UE与网络通信交互过程。图7所示的实施例与图3所示的实施例单独或结合应用。本实施例中对于某个UE的功能、与网络设备的角度，或者术语解释，与图3相关的部分，具体可参照图3中相关的描述，在本实施例不再赘述。
S700.核心网设备确定网络设备支持多播寻呼。
可选的，核心网设备确定网络设备为支持多播寻呼的网络设备，例如为MBS supporting node。
可选的，多播会话建立的时候，支持多播寻呼的网络设备显示携带一些MBS相关指示给核心网的SMF。核心网设备收到MBS相关的指示信息，则可以确定网络设备为支持多播寻呼的网络设备，如果核心网设备没收到相关的指示，确定该网络设备不支持多播寻呼。
接入网设备支持多播寻呼，标识网络设备可以在UE对应的寻呼时机上向UE发送MBS的寻呼消息，而无需确定新的用于发送MBS寻呼的PO。
可选的，在此之前，MBS数据到达核心网设备，例如到达核心网设备的用户面功能(User Plane Function，UPF)，核心网设备寻呼与MBS对应的UE，例如核心网设备的接入和移动管理功能(Access and Mobility Management Function，AMF)寻呼MBS对应的UE。
S701.核心网设备向网络设备发送第一信息，第一信息包括MBS的业务标识。可选的，第一信息还包括UE集合的标识列表。
当S700的步骤是可选的，核心网设备直接发送第一信息，如果接收到第一信息的接入网设备是支持多播寻呼的接入网设备，则该网络设备会处理该第一信息，如果接收到第一信息的网络设备不支持多播寻呼，则该网络设备忽略该第一信息，例如，可以通过将第一消息里的信元中的分配重要性Assigned Criticality字段设置为“ignore”来实现。
可选的，第一信息为NGAP(NG Application Protocol)消息，或者第一信息为NG Application Protocol消息中的一部分。。
核心网设备通过向接入网设备发送MBS的业务标识以及UE集合列表。网络设备可以获知与MBS对应的UE的集合，以便对这些UE进行MBS的寻呼。UE集合列表可选的可以为{UE 1_ID,UE 2_ID,…，UE N_ID}，或者为UE集合中各个UE对应的，例如{5G-S-TMSI 1,5G-S-TMSI 2,5G-S-TMSI 3，…}。可选的,UE集合列表可以既包括各个UE的UE_ID，也包括各个UE对应的5G-S-TMSI。
参照图3实施例中的描述，第一标识用于标识MBS，可供终端和/或网络设备确定寻呼时机。所述第一标识可以是MBS的业务标识，例如MBS session ID或者MBS service ID。
UE集合包括终端1(UE 1)以及终端2(UE 2)。UE1和UE2期望接收相应的MBS。
S702.网络设备向UE 1和UE 2发送***信息。
相应的，UE 1和UE 2接收来自网络设备的所述***信息。
所述***信息包括第一指示信息或者包括与MBS相关的SIB。
S703A.UE 1根据***信息确定寻呼时机计算标识为UE 1的标识。
或者说，UE 1根据***信息在UE 1的标识和第一标识中选择UE1的标识作为寻呼时机计算标识。所述第一标识为指示多播业务MBS的标识。具体的，UE 1根据***信息中包括第一指示信息或者根据***信息中包括MBS相关的SIB确定寻呼计算标识为UE的标识。UE 1还可以根据***信息中包括第一指示信息确定网络设备支持组寻呼。即网络设备为MBS supporting node可选的，UE 1根据***信息中不包括第一指示信息确定网络设备，不支持组寻呼，即网络设备为non MBS supporting node。可选的，可以根据第一***消息中是否包括MBS相关的SIB确定第一网络设备为MBS supporting node或者non MBS supporting node。UE 1根据***信息确定网络设备的类型以及对应的多播寻呼消息的接收方法。
S703B.UE 2根据***信息确定寻呼时机计算标识为UE 2的标识。
S704A.UE 1根据寻呼时机计算标识确定第一寻呼时机。
如果UE 1确定寻呼时机计算标识为UE 1的标识，UE根据图3实施例中关于寻呼时机计算方式获得用于接收多播寻呼信息的第一寻呼时机。
S704B.UE 2根据寻呼时机计算标识确定第二寻呼时机。
与UE 1类似,UE 2根据UE 2的标识确定第二寻呼时机。
S705.网络设备根据UE 1的标识确定第一寻呼时机。
S706.网络设备在第一寻呼时机上向UE 1发送MBS的寻呼消息。
MBS的寻呼消息包括MBS的业务标识，UE 1根据寻呼消息中的MBS的业务标识确定被MBS寻呼。
S707-S708与S705-S706类似，此处不再赘述。
可选的，网络设备周期性向UE 1发送MBS的寻呼消息时，对应的寻呼周期为UE 1的DRX周期，或者为UE 1的DRX周期的整数倍。类似的，UE 2接收多播寻呼消息的周期为UE2的DRX周期或者DRX周期的整数倍。
S709.UE 1发起随机接入过程，或者在非连接态接收MBS。
S710与S709类似，不再赘述。
图7所示出的实施例中，与图3有关的内容，具体可以参见上述关于图3部分的相关介绍，例如，S702中关于***信息的内容可以参见S301的相关介绍，S703中相关内容可以参见S302，S709可以参见S305，等等，此处不再赘述。
图7中所示出的通信方法中步骤S700，S701，S709，S710的步骤是可选的。各个步骤之间没有特定的先后顺序。例如，S705可以发生在S703A之前，也可以发生在S703之后，或者可以同时发生，即UE 1和网络设备确定第一寻呼时机并无绝对的先后顺序。其他的步骤类似，没有特定的先后顺序。
图8示出了本发明实施例提供的一种通信方法。相较于图3所示的实施例来说，图6所示的实施例增加了与核心网设备以及网络设备2的交互，并在图3所示的实施例的基础上提供了更丰富的通信交互过程。图8所示的实施例与图3所示的实施例以及图7所示的实施例单独或结合应用。
S800.核心网设备确定接入网设备是否支持多播寻呼。
核心网设备确定网络设备1支持多播寻呼，网络设备2不支持多播寻呼。
支持多播寻呼可以理解为具备多播寻呼功能。网络设备可以在相同的PO上向UE既发送单播寻呼，也可以发送组播寻呼。
不支持多播寻呼可以理解为不具备多播寻呼功能，或者对于多播寻呼，网络设备2是无感知的。网络设备2无法区分某次寻呼是多播寻呼还是单播寻呼。无论是单播寻呼，还是多播寻呼，核心网设备发给网络设备2的NG Application Protocol消息结构相同。
S801.核心网设备向网络设备1发送第一信息，第一信息中包括MBS的业务标识和/或第一UE集合的用户标识列表。
S802.核心网设备向网络设备2发送第二信息，第二信息中包括指示MBS的标识。
可选的，第二信息还可以包括第一寻呼周期，第一寻呼周期是UE集合中的UE的DRX周期的最小值。关于UE集合以及寻呼周期的有关描述具体可以参照与图3有关的描述。
可选的，如表2所示，第二信息为NG Application Protocol消息或者为NG Application Protocol消息中的一部分，指示MBS的标识占用NG Application Protocol消息中的UE Paging Identity字段，第一寻呼周期占用表2中Paging DRX字段。
表2
Figure PCTCN2022089775-appb-000001
表3
Figure PCTCN2022089775-appb-000002
如表3所示，UE Paging Identity字段中具体可以为5G-S-TMSI。对于不具备多播寻呼功能的网络设备2而言，可以将UE Paging Identity字段作为第一标识，即指示MBS的标识。第一标识的bit数与5G-S-TMSI占用的bit数相同。第一标识的相关描述可以参见图3实施例中的有关描述，在此不再赘述。
S803.核心网设备向UE 1发送第一信令，第一信令包括第一标识，即指示MBS的标识。
UE 1接入网络设备1，UE 3接入网络设备2。可选的，核心网设备还向UE 3发送指示MBS的标识。该指示MBS的标识与MBS对应。
可选的，UE确定指示MBS的标识还可以通过其他方式，例如指示MBS的标识为预配置的；或者指示MBS的标识为通过信令通知的，例如第一信令为广播信令、NAS信令或者RRC信令；或者是根据MBS的业务标识和对应关系确定的。
S804.网络设备1向UE 1发送***信息1。
***信息1包括第一指示信息，或者***信息1包括MBS相关的SIB。
S805.网络设备2向UE 3发送***信息3。
***信息3不包括第一指示信息，或者***信息3不包括MBS相关的SIB。
S806A.UE 1根据***信息1确定寻呼时机计算标识为UE 1的标识。
可选的，UE 1根据***信息1中包括第一指示信息，或者***信息1中包括MBS相关的SIB选择UE 1的标识作为寻呼时机计算标识。
S806B.UE 3根据***信息3确定寻呼时机计算标识为指示MBS的标识。
可选的，UE 3根据***信息3中包括第一指示信息，或者***信息3中包括MBS相关的SIB选择指示MBS的标识作为寻呼时机计算标识。
S807A.UE 1根据寻呼时机计算标识确定第一寻呼时机。
S807B.UE 3根据寻呼时机计算标识确定第三寻呼时机。
第三寻呼时机为根据指示MBS的标识计算得到的，该第三寻呼时机可以为多个UE共同使用，用于接收该标识对应的MBS的寻呼。
S808.网络设备1根据UE 1的标识确定第一寻呼时机。
S809.网络设备2根据指示MBS的标识确定第三寻呼时机。
S810.网络设备1在第一寻呼时机上向UE 1发送MBS的寻呼消息。
MBS的寻呼消息中包括MBS的业务标识，例如MBS session ID或者为MBS service ID。
可选的，UE 1属于UE集合。网络设备1在第一寻呼时机上向UE集合中的UE发送MBS的寻呼消息。
S811.网络设备1在第三寻呼时机上向UE 3发送MBS的寻呼消息。
可选的，UE 1在第一寻呼时机上监听单播业务的寻呼消息，当UE 1在第一寻呼时机上接收到的寻呼消息中包含MBS的业务标识时，例如MBS1的MBS session ID，UE1确定被MBS 寻呼。此后，类似步骤S305或步骤S709，UE 1发起随机接入过程，接入网络设备1，然后接收来自网络设备1的MBS；或者UE 1在非连接态接收MBS。
UE 3在第三寻呼时机上监听，UE 3在第三寻呼时机上接收到的寻呼消息中包括指示MBS的标识，例如，特殊5G-S-TMSI。UE 3确定被该标识对应的MBS寻呼，例如该5G-S-TMSI1对应的MBS为MBS1。UE3在确定被MBS寻呼后，进一步进行随机接入或在非连接态进行MBS接收。
图8所示出的通信方法中的相关内容可以参见图3所示出的通信方法中的介绍，例如，S804中关于***信息的内容可以参见S301以及S702的相关介绍，S806中相关内容可以参见S302以及S703，S709可以参见S305，其他不再例举。
图8中所示出的通信方法中步骤S800，S801，S802，S803，S810，S811的步骤是可选的。各个步骤之间没有特定的先后顺序。例如，S808可以发生在S807A之前，也可以发生在S807A之后，或者可以同时发生，即UE1和网络设备确定第一寻呼时机并无绝对的先后顺序。其他的步骤类似，没有特定的先后顺序。
图9给出了本申请实施例提供的一种UE的结构示意图。
如图9中以UE 900为手机为例。可以理解，UE 900并不限于手机，其可以是适用于图1A-1C,图2所示的***的终端。为了便于说明，图9仅示出了UE 900的主要部件。如图9所示，UE 900包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个UE900进行控制，执行软件程序，处理软件程序的数据。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏，显示屏，麦克风，键盘等主要用于接收用户输入的数据以及对用户输出数据。
以UE900为手机为例，当UE900开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至控制电路，控制电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到UE900时，控制电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图9仅示出了一个存储器和处理器。在一些实施例中，UE900可以包括多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个UE900进行控制，执行软件程序，处理软件程序的数据。图9中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。UE900可以包括多个基带处理器以适应不同的网络制式，UE900可以包括多个中央处理器以增强其处理能力，UE900的各个部件可以通过各种总线连接。所述基带处理器也可以表 述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在一个例子中，可以将具有收发功能的天线和控制电路视为UE900的收发单元910，将具有处理功能的处理器视为UE900的处理单元920。如图9所示，UE900包括收发单元910和处理单元920。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元910中用于实现接收功能的器件视为接收单元，将收发单元910中用于实现发送功能的器件视为发送单元，即收发单元910包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
本申请实施例还提供了一种网络设备，该网络设备可用于前述各个实施例中。所述网络设备包括用以实现图1A-1C,图2至图8所示的实施例中所述的网络设备1和/或网络设备2的功能的手段(means)、单元和/或电路。例如，网络设备包括收发模块，用以支持UE实现收发功能，和，处理模块，用以支持网络设备对信号进行处理。所述可以理解的是，所述网络设备1与网络设备2是相对于某个或某些UE而言，相对于其他一些UE，网络设备1可以与网络设备2的作用可以互换。
图10给出了本申请实施例提供的一种通信装置的结构示意图。所述通信装置1000可以是前述实施例中所述的通信装置，用于实现上述方法实施例所述通信装置可以是前述实施例中的具备终端功能的通信装置，和/或具备基站功能的通信装置，或者是前述通信装置中的功能模块。所述通信装置的具体的功能可以参见上述方法实施例中的说明。
通信装置1000包括一个或多个处理器1001。处理器1001也可以称为处理单元，可以实现一定的控制功能。所述处理器1001可以是通用处理器或者专用处理器等。例如，包括：基带处理器，中央处理器，应用处理器，调制解调处理器，图形处理器，图像信号处理器，数字信号处理器，视频编解码处理器，控制器，存储器，和/或神经网络处理器等。所述基带处理器可以用于对通信协议以及通信数据进行处理。所述中央处理器可以用于对通信装置1000进行控制，执行软件程序和/或处理数据。不同的处理器可以是独立的器件，也可以是集成在一个或多个处理器中，例如，集成在一个或多个专用集成电路上。
可选的，通信装置1000中包括一个或多个存储器1002，用以存储指令1004，所述指令可在所述处理器上被运行，使得UE1000执行上述方法实施例中描述的方法。可选的，所述存储器1002中还可以存储有数据。所述处理器和存储器可以单独设置，也可以集成在一起。
可选的，通信装置1001可以包括指令1003(有时也可以称为代码或程序)，所述指令1003可以在所述处理器上被运行，使得所述通信装置800执行上述实施例中描述的方法。处理器1001中可以存储数据。
可选的，通信装置1000还可以包括收发器1005以及天线1006。所述收发器1005可以称为收发单元、收发机、收发电路、收发器，输入输出接口等，用于通过天线1006实现通信装置1000的收发功能。
可选的，通信装置1000还可以包括以下一个或多个部件：无线通信模块，音频模块，外部存储器接口，内部存储器，通用串行总线(universal serial bus，USB)接口，电源管理模块， 天线，扬声器，麦克风，输入输出模块，传感器模块，马达，摄像头，或显示屏等等。可以理解，在一些实施例中，UE 1000可以包括更多或更少部件，或者某些部件集成，或者某些部件拆分。这些部件可以是硬件，软件，或者软件和硬件的组合实现。
本申请中描述的处理器1001和收发器1005可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路(radio frequency identification，RFID)、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、或电子设备等上。实现本文描述的通信装置，可以是独立设备(例如，独立的集成电路，手机等)，或者可以是较大设备中的一部分(例如,可嵌入在其他设备内的模块)，具体可以参照前述关于UE，以及网络设备的说明，在此不再赘述。
本申请实施例提供了一种UE，该UE(为描述方便，称为UE)可用于前述各个实施例中。所述UE包括用以实现图1A-1C,图2至图8所示的实施例中所述的UE功能的相应的手段(means)、单元和/或电路。例如，UE，包括收发模块，用以支持UE实现收发功能，和，处理模块，用以支持UE对信号进行处理。
图11给出了本申请实施例提供的一种网络设备的结构示意图。如图11所示，网络设备11可适用于图1A-1C，图2所示的***中。网络设备11可以相对于某个或某些UE而言，作为网络设备具备接入网设备的功能，也可以相对于某个或某些UE而言，作为核心网设备具备核心网设备的功能。该网络设备包括：基带装置111，射频装置112、天线113。在上行方向上，射频装置112通过天线113接收UE或接入网设备发送的信息，将UE或接入网设备发送的信息发送给基带装置111进行处理。在下行方向上，基带装置111对UE或接入网设备的信息进行处理，并发送给射频装置112，射频装置112对UE或接入网设备的信息进行处理后经过天线111发送给UE或接入网设备。
基带装置111包括一个或多个处理单元1111，存储单元1112和接口1113。其中处理单元1111用于支持网络设备执行上述方法实施例中网络设备的功能。存储单元1112用于存储软件程序和/或数据。接口1113用于与射频装置112交互信息，该接口包括接口电路，用于信息的输入和输出。在一种实现中，所述处理单元为集成电路，例如一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。存储单元1112与处理单元1111可以位于同一个芯片中，即片内存储元件。或者存储单元1112与处理单元1111也可以为与处理元件1111处于不同芯片上，即片外存储元件。所述存储单元1112可以是一个存储器，也可以是多个存储器或存储元件的统称。
网络设备可以通过一个或多个处理单元调度程序的形式实现上述方法实施例中的部分或全部步骤。例如实现图3，图7，和/或图8中网络设备的相应的功能。所述一个或多个处理单元可以支持同一种制式的无线接入技术，也可以支持不同种制式的无线接入制式。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其 它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的计算机可读存储介质，可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦可编程只读存储器(electrically erasable programmable read only memory，EEPROM)、紧凑型光盘只读存储器(compact disc read-only memory，CD-ROM)、通用串行总线闪存盘(universal serial bus flash disk)、移动硬盘、或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。另外，通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)或直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
本申请中，对于名词的数目，除非特别说明，表示“单数名词或复数名词”，即"一个或多个”。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。例如，A/B，表示：A或B。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，表示：a,b,c,a和b,a和c,b和c,或a和b和c，其中a,b,c可以是单个，也可以是多个。
本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。且，这种名称也并不是表示这两个配置信息的信息量大小、内容、优先级或者重要程度等的不同。
以上所述，仅为本申请的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应所述以权利要求的保护范围为准。

Claims (23)

  1. 一种无线通信方法，其特征在于，包括：
    接收来自网络设备的***信息；
    根据所述***信息确定寻呼时机计算标识，所述寻呼时机计算标识为终端的标识，或者所述寻呼时机计算标识为指示多播业务的标识；
    根据所述寻呼时机计算标识确定第一寻呼时机；
    在所述第一寻呼时机上接收多播业务的寻呼消息。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述***信息确定寻呼时机计算标识包括：
    如果所述***信息中包括多播业务相关的***信息，所述寻呼时机计算标识为所述终端的标识，或者
    如果所述***信息中包括第一指示信息，所述寻呼时机计算标识为所述终端的标识。
  3. 根据权利要求1或2所述的方法，其特征在于，所述根据所述***信息确定寻呼时机计算标识包括：
    如果所述***信息中不包括多播业务相关的***信息，所述寻呼时机计算标识为所述指示多播业务的标识，或者
    如果所述***信息中不包括第一指示信息，所述寻呼时机计算标识为所述指示多播业务的标识。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第一指示信息用于指示无需为接收多播业务的寻呼消息确定新的寻呼时机。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，
    所述指示多播业务的标识为预配置的；或者
    所述指示多播业务的标识为网络信令通知的；或者
    所述指示多播业务的标识为根据所述多播业务的业务标识得到的。
  6. 根据权利要求1-5中任意一项所述的方法，其特征在于，
    所述寻呼时机计算标识为所述终端的标识，所述多播业务的寻呼消息包括所述多播业务的业务标识；或者
    所述寻呼时机计算标识为所述指示多播业务的标识，所述多播业务的寻呼消息包括所述指示多播业务的标识。
  7. 根据权利要求1-6中任意一项所述的方法，其特征在于，
    所述多播业务与终端集合相关关联，所述终端集合包括一个或多个终端，所述终端的标识为所述终端集合中的终端的标识，
    所述寻呼时机计算标识为所述指示多播业务的标识，所述第一寻呼时机对应的寻呼周期为第一寻呼周期，所述第一寻呼周期为所述终端集合中的一个或多个终端的不连续接收DRX周期的最小值。
  8. 根据权利要求7所述的方法，其特征在于，
    所述指示多播业务的标识与所述终端集合中的一个或多个终端的标识不同。
  9. 一种无线通信方法，其特征在于，包括：
    发送***信息，所述***信息包括第一指示信息，或者所述***信息包括多播业务相关的***信息；
    根据第一终端的标识确定第一寻呼时机；
    在所述第一寻呼时机上向所述第一终端发送多播业务的寻呼消息。
  10. 根据权利要求9所述的方法，其特征在于，
    所述第一指示信息用于指示无需为接收多播业务的寻呼消息确定新的寻呼时机。
  11. 根据权利要求9或10所述的方法，其特征在于，所述方法还包括：
    接收来自核心网设备的第一信息，所述第一信息包括所述多播业务的业务标识和终端集合的标识列表，所述终端集合与所述多播业务关联，所述第一终端属于所述终端集合。
  12. 根据权利要求9-11中任意一项所述的方法，其特征在于，
    所述第一寻呼时机还用于向所述第一终端发送单播业务的寻呼消息。
  13. 根据权利要求9-12中任意一项所述的方法，其特征在于，
    所述多播业务的寻呼消息包括所述多播业务的业务标识。
  14. 根据权利要求9-13中任意一项所述的方法，其特征在于，
    所述第一寻呼时机对应的寻呼周期为所述第一终端的不连续接收DRX周期。
  15. 根据权利要求9-14中任意一项所述的方法，其特征在于，所述方法还包括：
    所述终端集合还包括第二终端，
    根据第二终端的标识确定第二寻呼时机；
    在所述第二寻呼时机上向所述第二终端发送所述多播业务的寻呼消息，其中，所述第二寻呼时机对应的寻呼周期为所述第二终端的DRX周期。
  16. 一种无线通信方法，其特征在于，包括：
    确定网络设备是否支持多播寻呼；
    当网络设备支持多播寻呼，向所述网络设备发送第一信息，所述第一信息包括多播业务的 业务标识和终端集合的标识列表，所述终端集合与所述多播业务关联；
    当网络设备不支持多播寻呼，向所述网络设备发送第二信息，所述第二信息包括指示多播业务的标识。
  17. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    向第一终端发送第一信令，所述第一信令包含所述指示多播业务的标识。
  18. 根据权利要求17所述的方法，其特征在于，
    所述指示多播业务的标识与所述终端集合中的终端设备的标识不同。
  19. 根据权利要求16-18中任意一项所述的方法，其特征在于，
    所述第二信息还包括第一寻呼周期，
    所述第一寻呼周期为所述终端集合中的终端设备的DRX周期的最小值。
  20. 一种通信装置，其特征在于，包括处理器和接口，所述接口用于发送和/或接收信息，所述处理器用于执行如权利要求1～8中任一项所述的方法，或执行如权利要求9～14中任一项所述的方法，或执行如权利要求16～19中任一项所述的方法。
  21. 一种通信装置，其特征在于，包括用于执行如权利要求1～8中任一项所述的方法的单元，或包括用于执行如权利要求9～14中任一项所述的方法单元，或包括用于执行如权利要求16～19中任一项所述的方法的单元。
  22. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1～8中任一项所述的方法，或使得所述计算机执行如权利要求9～14中任一项所述的方法，或使得所述计算机执行如权利要求16～19中任一项所述的方法。
  23. 一种计算机程序产品，其特征在于，包括指令，当所述指令被执行时，使得如权利要求1～8中任一项所述的方法被执行，或使得如权利要求9～14中任一项所述的方法被执行，或使得如权利要求16～19中任一项所述的方法被执行。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496137A (zh) * 2002-06-20 2004-05-12 三星电子株式会社 用于多媒体广播/多播服务的寻呼设备和方法
US20180026698A1 (en) * 2016-07-20 2018-01-25 Lg Electronics Inc. Method and apparatus for calculating beamforming based paging occasion in wireless communication system
CN109246818A (zh) * 2017-05-04 2019-01-18 华为技术有限公司 寻呼方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1496137A (zh) * 2002-06-20 2004-05-12 三星电子株式会社 用于多媒体广播/多播服务的寻呼设备和方法
US20180026698A1 (en) * 2016-07-20 2018-01-25 Lg Electronics Inc. Method and apparatus for calculating beamforming based paging occasion in wireless communication system
CN109246818A (zh) * 2017-05-04 2019-01-18 华为技术有限公司 寻呼方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INC.: "NR Multicast group paging aspects", 3GPP DRAFT; R2-2103179, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. E-Meeting; 20210412 - 20210419, 2 April 2021 (2021-04-02), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052174784 *

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