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WO2022155768A1 - Procédé de communication, dispositif, et support de stockage - Google Patents

Procédé de communication, dispositif, et support de stockage Download PDF

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Publication number
WO2022155768A1
WO2022155768A1 PCT/CN2021/072620 CN2021072620W WO2022155768A1 WO 2022155768 A1 WO2022155768 A1 WO 2022155768A1 CN 2021072620 W CN2021072620 W CN 2021072620W WO 2022155768 A1 WO2022155768 A1 WO 2022155768A1
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WIPO (PCT)
Prior art keywords
information
identification information
network
terminal device
digits
Prior art date
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PCT/CN2021/072620
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English (en)
Chinese (zh)
Inventor
卢飞
王淑坤
郭雅莉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202180079837.8A priority Critical patent/CN116615920A/zh
Priority to PCT/CN2021/072620 priority patent/WO2022155768A1/fr
Publication of WO2022155768A1 publication Critical patent/WO2022155768A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a communication method, device, and storage medium.
  • the 5th generation (5G) wireless communication system can also provide dedicated access networks for vertical industries.
  • the 3rd generation partnership project (3GPP) is in The 5G Rel-16 standard has added research and standardization of non-public network (NPN) scenario requirements and functions.
  • NPN non-public network
  • NPN can be well integrated with the industrial Internet to achieve end-to-end resource isolation, provide dedicated access networks for vertical industries, restrict terminal devices in non-vertical industries from accessing dedicated networks or frequency bands, and ensure exclusive access to customer resources in vertical industries.
  • Multimedia broadcast multicast service is a point-to-multipoint transmission type service for multiple terminal devices, such as live broadcast service, part of public safety service, batch software update service, etc. Realize the sharing of network resources and improve the utilization rate of network resources, especially air interface resources.
  • Embodiments of the present application provide a communication method, device, and storage medium, so as to improve configuration flexibility and resource utilization.
  • an embodiment of the present application may provide a communication method, which is applied to a terminal device, and the method includes:
  • the terminal device receives first information, where the first information is used to indicate the length of the first identification information, and the first identification information is used for the terminal device to request a multimedia broadcast multicast service;
  • the terminal device determines, according to the first information, at least one bit in the temporary mobility group identification information included in the first identification information, and/or at least one bit in the identification information of the first network included in the first identification information.
  • a network is a network that provides services to the terminal device.
  • the embodiments of the present application may further provide a communication method, which is applied to a network device, and the method includes:
  • the first network node determines the length of the first identification information, the first identification information is used by the terminal device to request the multimedia broadcast multicast service, and the first identification information includes at least one bit in the temporary mobile group identification information and/or the first network At least one bit in the identification information of the first network is a network that provides services for the terminal device;
  • the first network node sends first information to the terminal device, where the first information is used to indicate the length of the first identification information.
  • the embodiments of the present application may further provide a terminal device, including:
  • a transceiver unit configured to receive first information, where the first information is used to indicate the length of the first identification information, and the first identification information is used for the terminal device to request a multimedia broadcast multicast service;
  • a processing unit configured to determine, according to the first information, at least one bit in the temporary mobile group identification information included in the first identification information, and/or at least one bit in the identification information of the first network included, the The first network is the network serving the terminal device.
  • the embodiments of the present application may further provide a network device, including:
  • a processing unit configured to determine the length of the first identification information, the first identification information is used for the terminal device to request the multimedia broadcast multicast service, the first identification information includes at least one bit in the temporary mobile group identification information and/or the first At least one bit in the identification information of the network, the first network is a network that provides services for the terminal device;
  • the transceiver unit is configured to send first information to the terminal device, where the first information is used to indicate the length of the first identification information.
  • the embodiments of the present application may further provide a terminal device, including:
  • processors memories, interfaces for communicating with network devices
  • the memory stores computer-executed instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method as provided in any one of the first aspects.
  • the embodiments of the present application may further provide a network device, including:
  • Processor memory, interface for communication with terminal equipment
  • the memory stores computer-executed instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method as provided in any one of the second aspects.
  • an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the communication method.
  • an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement any one of the second aspect the communication method.
  • an embodiment of the present application provides a program, which, when the program is executed by a processor, is used to execute the communication method according to any one of the above first aspects.
  • an embodiment of the present application further provides a program, which, when the program is executed by a processor, is used to execute the communication method according to any one of the above second aspects.
  • the above-mentioned processor may be a chip.
  • an embodiment of the present application provides a computer program product, including program instructions, where the program instructions are used to implement any one of the communication methods of the first aspect.
  • an embodiment of the present application provides a computer program product, including program instructions, where the program instructions are used to implement any one of the communication methods of the second aspect.
  • an embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can execute the communication method of any one of the first aspect.
  • the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to perform the first aspect. any one of the communication methods.
  • a storage module eg, memory
  • the storage module is used for storing instructions
  • the processing module is used for executing the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to perform the first aspect. any one of the communication methods.
  • an embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can execute any one of the methods of the second aspect.
  • the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to perform the second aspect any one of the communication methods.
  • a storage module eg, memory
  • the storage module is used for storing instructions
  • the processing module is used for executing the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to perform the second aspect any one of the communication methods.
  • Fig. 1 is a schematic diagram of a communication system provided by the application
  • FIG. 2 is a schematic diagram of a point-to-multipoint network architecture provided by the present application.
  • Fig. 3 is a schematic flow chart of the MBMS service establishment process
  • Fig. 4 is an example diagram of the composition structure of TMGI
  • Fig. 5 is an example diagram of the composition structure of NID
  • Fig. 6 is a schematic flow chart of the communication method provided by the present application.
  • Fig. 7 is an example diagram of the structure of the first identification information provided by this application.
  • FIG. 8 is a schematic flowchart of Embodiment 1 of the communication method provided by the present application.
  • FIG. 9 is a schematic flowchart of Embodiment 2 of the communication method provided by the present application.
  • FIG. 10 is a schematic flowchart of Embodiment 3 of the communication method provided by this application.
  • FIG. 11 is a schematic block diagram of an example of a communication device of the present application.
  • FIG. 12 is a schematic structural diagram of an example of a terminal device of the present application.
  • FIG. 13 is a schematic structural diagram of an example of a network device of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX worldwide interoperability for microwave access
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 110 in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 120 in FIG. 1 . Wherein, the terminal device 120 may be mobile or fixed.
  • the network device 110 and the terminal device 120 communicate via a wireless link.
  • the network device 110 may be an access network node in an NPN, and the NPN network provides network services for the terminal device 120 through the network device 110 .
  • the terminal device in this embodiment of the present application may be a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, A wireless communication device, user agent or user equipment.
  • UE user equipment
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or in the future evolution of the public land mobile network (PLMN) equipment, etc., which are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • IoT is an important part of the future development of information technology, and its main technical feature is that items pass through communication technology Connect with the network, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the network device in this embodiment of the present application may be a device for communicating with terminal devices, and the network device may be an evolved base station (evolutional nodeB, eNB or eNodeB) in an LTE system, or a cloud radio access network (cloud radio access network).
  • evolutional nodeB eNB or eNodeB
  • cloud radio access network cloud radio access network
  • radio access network (CRAN) scenario or the network device may be a relay station, an access point, a vehicle-mounted device, a network device in a 5G network, or a network device in a future evolved PLMN network, etc.
  • This application implements Examples are not limited.
  • the service layer and/or the application layer include application function (application function, AF)/application server (application server, AS) node, multimedia broadcast service function (multimedia broadcast service function, MBSF)-control plane (control plane, CP) ) node, namely MBSF-C, MBSF-user plane (UP) node, namely MBSF-U, network exposure function (NEF) node.
  • application function application function
  • AS application server
  • AS multimedia broadcast service function
  • MBSF multimedia broadcast service function
  • MBSF-control plane control plane
  • UP MBSF-user plane
  • NEF network exposure function
  • the AF/AS communicates with MBSF-C, MBSF-U, and NEF through the xMB-U/MB2-U, xMB-C/MB2-C, and N33 interfaces, respectively.
  • the AF/AS communicates with the transport layer multimedia broadcast (multimedia broadcast, MB)-user plane (user plane function, UPF) node (ie, MB-UPF) through the N6/MB2-U interface.
  • the communication between MBSF-C and NEF and MBSF-U is through the xMB-C/MB2-C and Nmbsu interfaces respectively, and the policy control function (PCF) node and MB-session management between MBSF-C and the transport layer Function (session management function, SMF) nodes (ie MB-SMF) communicate between each other through Npcf and Nmbsmf interfaces.
  • PCF policy control function
  • SMF transport layer Function
  • the MBSF-U communicates with the MB-UPF node of the transport layer through the N6 interface. Communication between the NEF and the PCF node and the MB-SMF node of the transport layer is performed through the Npcf and Nmbsmf interfaces respectively.
  • the transport layer includes PCF nodes, MB-SMF nodes, MB-UPF nodes, access and mobility management function (AMF) nodes, SMF nodes, UPF nodes, and radio access network (RAN) nodes.
  • PCF communicates with MB-SMF and AMF through N7 and N15 interfaces respectively
  • MB-SMF communicates with MB-UPF, SMF and AMF through N4, N16a and N11 interfaces respectively.
  • the communication between MB-UPF and RAN Communication between SMF and AMF and UPF is carried out through N11 and N4 interfaces respectively, and communication between AMF and RAN is carried out through N2 interface.
  • terminal devices eg, UE1, UE2, and UE3 can communicate with the network after establishing a wireless connection with a RAN node.
  • the 5G core network (5G core, 5GC) supports the protocol data unit (PDU) connection service.
  • the PDU connection service is the service of exchanging PDU data packets between the UE and the data network (DN); the PDU connection service passes through The UE initiates the establishment of a PDU session to achieve this. After a PDU session is established, a data transmission channel between the UE and the DN is established.
  • the subscription information of each single-network slice selection assistance information may include a default DN name (DN name, DNN) and multiple DNNs.
  • DN name DN name, DNN
  • the serving AMF will select the default DNN for its S-NSSAI; if there is no default DNN, the serving AMF will select the locally configured DNN for the S-NSSAI.
  • the AMF will reject the PDU A connection request, carrying the reason value "DNN is not supported".
  • Each PDU session supports a PDU session type, that is, Internet Protocol (IP) version 4 (ie IPv4), IP version 6 (ie IPv6), IPv4v6, Ethernet (Ethernet), Unstructured (Unstructured) a kind of.
  • IP Internet Protocol
  • IPv4 IP version 6
  • IPv4v6 IPv4v6, Ethernet
  • Ethernet IPv4v6, Ethernet
  • Unstructured Unstructured
  • a PDU session is established for the same service, and this session can support both unicast data transmission of services and multicast data transmission of data.
  • a UE-specific N3 channel may be used, and both unicast data and multicast data for the UE are transmitted in this specific channel.
  • a shared transmission channel may also be used, and the transmission channel is shared by multiple terminals for data transmission, and the multiple terminals may belong to the same group.
  • FIG. 3 is a schematic flowchart of an MBMS service establishment process, and the MBMS service establishment process includes but is not limited to the following steps:
  • Step 1 unified data repository (UDR), MB-SMF, MB-UPF and MBSF for multicast configuration, this step can refer to Figure 8.2.3-2 in 3GPP technical report TR 23.757;
  • Step 2 the UE performs the registration process, and performs the PDU session establishment process according to the DNN and S-NSSAI; in the UE registration process, the UE needs to provide the AMF with the multicast capability of the UE, and the AMF needs to select the AMF in the PDU session establishment process.
  • Multicast capable SMF Multicast capable SMF
  • Step 3 the content provider makes a service announcement, and the announcement message may include a temporary mobile group identity (TMGI).
  • TMGI temporary mobile group identity
  • IP multicast address IP multicast address
  • Step 4 in order to join the multicast service, the UE initiates a PDU session modification process, and the UE carries the multicast address or TMGI in the PDU session modification request message;
  • Step 5 the AMF sends the Nsmf_PDU session update SM context message, namely the Nsmf_PDUSession_UpdateSMContext message, to the SMF, which carries the SM context identifier (identifier, ID) SM context ID and the PDU session modification request message sent by the UE in step 4.
  • the SMF which carries the SM context identifier (identifier, ID) SM context ID and the PDU session modification request message sent by the UE in step 4.
  • Step 6 the SMF needs to check with the UDR whether the UE can use the multicast service, and obtain the MB-SMF identifier, that is, the MB-SMF ID;
  • Step 7 UDR returns MB-SMF ID to SMF;
  • Step 8 after the SMF obtains the MB-SMF ID, the SMF sends a multicast quality of service (quality of service, QoS) request message to the MB-SMF;
  • quality of service quality of service, QoS
  • Step 9 the MB-SMF returns a multicast QoS response message to the SMF, and the message includes a QoS message corresponding to the multicast QoS flow (QoS flow);
  • Step 10 SMF sends a Namf_Communication_N1N2 information forwarding message to AMF, namely Namf_Communication_N1N2MessageTransfer message, the message carries N2SM information, and N1SM container, namely N1SM container, wherein N2SM information also includes PDU Session ID (PDU Session ID), and more Multicast Context ID (Multicast Context ID), Multicast Group ID (TMGI, Multicast IP address), MB-SMF ID, Multicast QoS flow information (QoS flow ID and corresponding QoS information), and N1SM container also includes PDU session
  • the modification command (PDU Session Modification Command) message includes the PDU Session ID and multicast information in the PDU Session Modification Command message.
  • the details of the multicast information include the Multicast Context ID, the multicast QoS flow information, and the multicast address;
  • SMF is configured to support unicast fallback mechanism, SMF also needs to provide the corresponding relationship between unicast QoS flow and multicast QoS flow in N2SM information and N1SM container;
  • step 11 the AMF sends an N2 session modification request message to the RAN, and the message carries the content of the N2SM information in step 10; the RAN determines whether the group resource has been allocated based on the multicast group ID; if not, the RAN also needs to perform group resource allocation. distribute;
  • Step 12 the RAN performs RRC resource reconfiguration and forwards the N1SM container to the UE;
  • Step 13 the RAN allocates group resources; the RAN sends a multicast sending request message to the AMF, and the message carries the MB-SMF ID information and the multicast group ID; if the RAN uses unicast to receive multicast services, the RAN allocates downlink GTP- U TEID and downlink IP address, and carry it to AMF in the multicast sending request message;
  • Step 14 the AMF selects the MB-SMF according to the MB-SMF ID, and sends a multicast sending request message to the selected MB-SMF, which carries the multicast group ID and the downlink GTP-U TEID and downlink IP address allocated in step 13. ;
  • Step 15 if the downlink GTP-U TEID and the downlink IP address are carried in the steps 13 and 14, the MB-SMF needs to send the N4 session modification request message to the MB-UPF; the downlink GTP-U TEID and the downlink IP address are carried in the message;
  • Step 16 the MB-UPF sends an N4 session modification response message to the MB-SMF;
  • Step 17 the MB-SMF returns a multicast sending response message to the AMF;
  • Step 18 the AMF returns a multicast sending response message to the RAN;
  • Step 19 the RAN returns an N2 response message to the AMF; the N2 response message does not carry the downlink tunnel information;
  • step 20 the AMF sends an N2 response message to the SMF, and the SMF decides to use the shared tunnel to transmit the multicast service, so there is no need to interact with the UPF;
  • Step 21 MB-UPF receives multicast data from content provider or MBF-U; MB-UPF sends multicast data to RAN;
  • Step 22 The RAN decides whether to use a point-to-point (PTP) transmission mode or a point-to-multi-point (PTM) transmission mode to send multicast data to the UE.
  • PTP point-to-point
  • PTM point-to-multi-point
  • the PDU session modification request message carries TMGI.
  • the format of TMGI is shown in Figure 4, which includes the MBMS service of 6-digit hexadecimal number. ID, and a 3-digit mobile country code (MCC) and a 2- or 3-digit mobile network code (MNC).
  • MCC mobile country code
  • MNC 2- or 3-digit mobile network code
  • the MCC and the MNC can identify a public land mobile network (PLMN), that is, an MCC and an MNC form a PLMN ID.
  • PLMN public land mobile network
  • a TMGI can uniquely identify an MBMS bearer entity (MBMS bear instance).
  • NPN network identifier
  • PLMN ID a network identifier
  • NID network identifier
  • the NID contains a total of 11 hexadecimal digits, and the format is shown in Figure 5.
  • the NID includes an allocation mode of 1 hexadecimal number and an NID value of 10 hexadecimal digits.
  • the TMGI sent by the terminal equipment in the NPN when requesting to join the multicast service needs to include the NID of the NPN, so as to be able to identify the NPN, however, the NID contains a total of 11 hexadecimal digits , the terminal equipment sends MBMS service ID and network identifier (including PMLN ID and NID) to request MBMS service signaling overhead is relatively large.
  • the NPN network IDs in some operator networks are not exhausted, and/or the types of MBMS services provided are few, there may be unused bits such as NIDs and/or MBMS service IDs.
  • this application proposes that the network provides the terminal device with length information of the first identification information (the first identification information is used to request MBMS services), so that the terminal device can determine the length of the first identification information according to the length information, which can improve resource utilization. , to increase the flexibility of network configuration.
  • FIG. 6 is a schematic flowchart of the communication method provided by the present application.
  • the network node determines the length of the first identification information.
  • the first identification information is used by the terminal device to request the MBMS service.
  • the network node is a node in the first network.
  • the first network provides network services for the terminal device.
  • the network node determines the N digits in the TMGI included in the first identification information, where the TMGI includes K digits, and N ⁇ K.
  • the network node may determine the number of MBMS service IDs according to the number of MBMS services, and one MBMS service ID identifies one type of MBMS service. For example, the number of MBMS services only needs 4 hexadecimal digits to indicate different MBMS service IDs, and 2 bits are not used in the 6-digit MBMS service ID. Therefore, the network node can determine that the first identification information includes 4 bits in the MBMS service ID. That is to say, the number of digits of the MBMS service ID in the TMGI identifier included in the first identifier information is 4 digits, but the present application is not limited to this.
  • the network node determines M digits in the NID included in the first identification information, where the NID includes L digits, and M ⁇ L.
  • the first network is an NPN.
  • the network node can determine the number of NIDs according to the number of existing NPNs, and one NID can represent one NPN.
  • the number of existing NPNs only needs 7 hexadecimal digits to indicate different NPNs, and 4 bits are not used in the 11-bit NID. Therefore, the network node can determine that the first identification information includes the 7-digit hexadecimal number in the NID.
  • the present application is not limited to this.
  • Embodiment 3 The above-mentioned Embodiments 1 and 2 may be implemented in combination, and the network device may determine the N digits in the TMGI included in the first identification information, and the M digits in the NID included in the first identification information.
  • S620 The network node sends first information to the terminal device, where the first information is used to indicate the length of the first identification information.
  • the terminal device receives the first information from the network node. After determining the length of the first identification information in S610, the network node notifies the terminal device through the first information in S620, so that the terminal device determines the first identification information.
  • the first information includes first indication information, and the first indication information is used to indicate that the first identification information includes N digits in the TMGI.
  • the N-bit number is a continuous N-bit number starting from the nth bit in the TMGI.
  • n is specified by the protocol, pre-configured by the network, or indicated by the first information, 0 ⁇ n ⁇ K, and n is an integer.
  • the first indication information indicates N
  • the protocol stipulates that N is the N digits from the lowest order to the highest order of TMGI.
  • the terminal device can determine that the first identification information includes the low N digits of TMGI.
  • the protocol may stipulate that the starting bit of the N-digit number is the highest bit, and the N-digit number is the N-digit number from the highest to the lowest bit.
  • the protocol may specify that n is a bit other than the least significant bit and the most significant bit. This application does not limit this.
  • the network device may configure the value of n for the terminal device through configuration information (for example, a radio resource control (radio resource control, RRC) message, etc.).
  • configuration information for example, a radio resource control (radio resource control, RRC) message, etc.
  • RRC radio resource control
  • the first indication information indicates the identifier n of the start bit and the number of consecutive bits N.
  • the terminal device may determine the N digits in the TMGI.
  • TMGI includes 11-digit hexadecimal numbers, the lowest digit in TMGI is 0, and the digit increases sequentially from low digit to high digit, and the highest digit is 10.
  • the present application is not limited to this.
  • the first information includes second indication information
  • the second indication information is used to indicate that the first identification information includes M digits in the NID.
  • the M-bit number is a continuous M-bit number with the m-th bit of the NID as the starting bit.
  • m is specified by the protocol, pre-configured by the network, or indicated by the first information, 0 ⁇ m ⁇ L, and m is an integer.
  • the first information includes the above-mentioned first indication information and second indication information.
  • N number of digits may be referred to as the truncated length of TMGI, and the M number of digits may be referred to as the truncated length of NID, but the present application is not limited thereto.
  • the number of digits indicated by the first indication information and/or the second indication information may be the number of binary digits, the number of decimal digits, or the number of hexadecimal digits.
  • One binary bit is 1 bit, and the value can be 0 or 1
  • the first indication information can indicate N bits
  • the second indication information indicates M bits
  • one decimal bit is a value from 0 to 9
  • the first The indication information may indicate N decimal digits
  • the second indication information may indicate M decimal digits
  • a hexadecimal digit takes a value from 0 to F
  • the first indication information may indicate N hexadecimal digits
  • the second indication information indicates M hexadecimal digits.
  • S630 The terminal device determines first identification information according to the first information.
  • the terminal device determines, according to the first information, at least one bit in the temporary mobility group identification information included in the first identification information, and/or at least one bit in the identification information of the first network included, where the first network is for The network in which the terminal equipment provides services.
  • the terminal device may determine, according to the first indication information, that the first identification information includes N consecutive bits starting with the nth bit in the TMGI.
  • the terminal device may determine, according to the second indication information, that the first identification information includes M consecutive bits starting with the mth bit in the NID.
  • the first information includes first indication information
  • the terminal device may determine that the first identification information includes the lower 7 digits of TMGI according to the first indication information
  • the terminal device may determine the first identification
  • the message includes the lower 7 digits in the TMGI.
  • the terminal device may by default include all the digits of the NID in the first identification information, and the first identification information includes 18 digits in total, including the lower 7 digits of the TMGI and all the digits of the NID.
  • the present application is not limited to this.
  • the first information includes first indication information and second indication information
  • the terminal device may determine the first identification information according to the first indication information It includes the lower 8 digits of the TMGI, and it is determined according to the second indication information that the first identification information includes the lower 6 digits of the NID. Therefore, the first identification information may include a total of 14 digits, including the lower 8 digits of the TMGI and the lower 6 digits of the NID.
  • the format of the first identification information may be as shown in FIG. 7 , but the present application is not limited thereto.
  • the terminal device sends an MBMS service request message, where the MBMS service request message includes the first identification information.
  • the terminal device may request the MBMS service by sending an MBMS service request message to the network.
  • the MBMS service request message includes the first identification information.
  • the node in the network can determine the MBMS service requested by the terminal device according to the first identification information.
  • the MBMS service request message is a PDU session modification request message.
  • the communication method provided by the embodiment shown in FIG. 6 can be applied to NPN, PLMN or other networks, which is not limited in this application.
  • the network can determine the length of the first identification information according to network conditions, and notify the terminal device through the first information, so that the terminal device can determine the length of the first identification information according to the first information. It can improve the flexibility of network configuration.
  • the length of the first identification information is shortened according to the actual situation of the network, which can reduce signaling overhead and improve resource utilization.
  • the network node in the communication method shown in FIG. 6 may be a RAN node.
  • FIG. 8 is a schematic flowchart of Embodiment 1 of the present application.
  • the RAN node determines the length of the first identification information.
  • the RAN node may be a next generation RAN (next generation-RAN, NG-RAN) in the 5G system.
  • next generation RAN next generation-RAN, NG-RAN
  • S820 The RAN node sends a first message to the terminal device, where the first message includes the first information.
  • the terminal device receives the first message from the RAN node.
  • the first message is a system message sent by the RAN node.
  • the RAN node may include the first information in a broadcast system information block (system information block, SIB).
  • SIB system information block
  • the first message is an RRC release message or an RRC reconfiguration message sent by the RAN node.
  • an RRC connection is established between the terminal device and the RAN node, and an access layer security connection is established.
  • the RAN node sends a security mode command to the terminal device, and the terminal device sends a network device to the network device.
  • a secure mode complete message is sent to complete the access layer secure connection establishment.
  • the RAN node sends an RRC release message to the terminal device, where the RRC release message includes the first information, or the RAN node sends an RRC reconfiguration message to the terminal device, where the RRC reconfiguration message includes the first information.
  • the present application is not limited to this.
  • the terminal device determines first identification information according to the first information.
  • the terminal device may send an MBMS service request message including the first identification information to the network to request the MBMS service.
  • the RAN node can carry the first information through the SIB, the RRC release message or the RRC reconfiguration message, so that the terminal device can determine the length of the first identification information according to the first information. It can improve the flexibility of network configuration. The length of the first identification information is shortened according to the actual situation of the network, which can reduce signaling overhead and improve resource utilization.
  • the network node may be an AMF node.
  • FIG. 9 is a schematic flowchart of Embodiment 2 of the present application.
  • the terminal device sends a registration request message to the AMF node.
  • the AMF node receives the registration request message, and determines that the terminal device requests to register with the first network, where the first network is the network where the AMF node is located.
  • the AMF node sends a security mode command message to the terminal device.
  • the terminal device receives the security mode command message from the AMF node to establish a non-access stratum (non-access stratum, NAS) security connection.
  • NAS non-access stratum
  • the terminal device sends a security mode completion message to the AMF node
  • the AMF node receives the security mode completion message from the terminal device, thereby completing the NAS security connection.
  • the AMF node sends a registration acceptance message to the terminal device, where the registration acceptance message includes the first information.
  • the terminal device receives the registration accept message from the AMF node.
  • the AMF node After the NAS security connection between the terminal device and the network is established, the AMF node sends the first information to the terminal device in a registration acceptance message, which can ensure the security of the first information.
  • This enables the terminal device to determine the first identification information after receiving the first information, so that the terminal device can request the MBMS service according to the first identification information.
  • the terminal device sends a registration completion message to the AMF node.
  • the AMF node receives the registration complete message from the terminal device.
  • the registration of the terminal device to the first network is completed.
  • the AMF node can carry the first information through the registration accept message, so that the terminal device can determine the length of the first identification information according to the first information. It can improve the flexibility of network configuration. The length of the first identification information is shortened according to the actual situation of the network, which can reduce signaling overhead and improve resource utilization.
  • the network node may be an SMF node.
  • FIG. 10 is a schematic flowchart of Embodiment 3 of the present application.
  • the terminal device completes the authentication process between the terminal device and the network by exchanging information with the AMF node.
  • the terminal device sends a PDU session establishment request message to the SMF node.
  • the SMF node receives the PDU Session Request message from the middle terminal device.
  • the SMF node determines that the terminal device requests the establishment of a PDU session
  • the SMF node sends a PDU session establishment accept message to the terminal device, where the session establishment accept message includes the first information.
  • the terminal device receives the PDU session establishment accept message from the SMF node.
  • the terminal device may determine the first identification information according to the first information in the PDU session establishment message. So that the terminal device can request the MBMS service according to the first identification information.
  • the SMF node can carry the first information through the PDU session accept message, so that the terminal device can determine the length of the first identification information according to the first information. It can improve the flexibility of network configuration. The length of the first identification information is shortened according to the actual situation of the network, which can reduce signaling overhead and improve resource utilization.
  • FIG. 11 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 1100 may include a processing unit 1110 and a transceiver unit 1120 .
  • the communication apparatus 1100 may correspond to the terminal device in the above method embodiment, that is, the UE, or a chip configured (or used in) the terminal device.
  • the communication apparatus 1100 may correspond to a terminal device in the communication method provided according to the embodiment of the present application, and the communication apparatus 1100 may include a terminal for executing the methods shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 .
  • each unit in the communication device 1100 and the above-mentioned other operations and/or functions are respectively for realizing the corresponding flow of the communication method shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 .
  • the transceiver unit 1120 in the communication device 1100 may be an input/output interface or circuit of the chip, and the processing in the communication device 1100 Unit 1110 may be a processor in a chip.
  • the communication apparatus 1100 may further include a processing unit 1110, and the processing unit 1110 may be configured to process instructions or data to implement corresponding operations.
  • the communication device 1100 may further include a storage unit 1130, the storage unit 1130 may be used to store instructions or data, and the processing unit 1110 may execute the instructions or data stored in the storage unit, so as to enable the communication device to implement corresponding operations , the transceiver unit 1120 in the communication device 1100 in the communication device 1100 may correspond to the transceiver 1210 in the terminal device 1200 shown in FIG. 12 , and the storage unit 1130 may correspond to the terminal device 1200 shown in FIG. 12 . in the memory.
  • the transceiver unit 1120 in the communication apparatus 1100 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the terminal shown in FIG. 12 .
  • the transceiver 1210 in the device 1200, the processing unit 1110 in the communication device 1100 may be implemented by at least one processor, for example, may correspond to the processor 1220 in the terminal device 1200 shown in FIG.
  • the processing unit 1110 may be implemented by at least one logic circuit.
  • the communication device 1100 may correspond to the network node in the above method embodiments, for example, or a chip configured (or used in) the network node.
  • the communication device 1100 may correspond to a network node in the communication method according to the embodiment of the present application, and the communication device 1100 may include a network for performing the methods shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 .
  • each unit in the communication device 1100 and the above-mentioned other operations and/or functions are respectively to implement the corresponding flow of the methods shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 .
  • the transceiver unit in the communication device 1100 is an input/output interface or circuit in the chip
  • the processing unit in the communication device 1100 1110 may be a processor in a chip.
  • the communication apparatus 1100 may further include a processing unit 1110, and the processing unit 1110 may be configured to process instructions or data to implement corresponding operations.
  • the communication apparatus 1100 may further include a storage unit 1130, which may be used to store instructions or data, and the processing unit may execute the instructions or data stored in the storage unit 1130 to enable the communication apparatus to implement corresponding operations.
  • the storage unit 1130 in the communication device 1100 may correspond to the memory in the network node 1300 shown in FIG. 13 .
  • the transceiver unit 1120 in the communication device 1100 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the network shown in FIG. 13 .
  • the transceiver 1310 in the node 1300, the processing unit 1110 in the communication device 1100 may be implemented by at least one processor, for example, may correspond to the processor 1320 in the network device 1300 shown in FIG.
  • the processing unit 1110 may be implemented by at least one logic circuit.
  • FIG. 12 is a schematic structural diagram of a terminal device 1200 provided by an embodiment of the present application.
  • the terminal device 1200 can be applied in the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.
  • the terminal device 1200 includes a processor 1220 and a transceiver 1210 .
  • the terminal device 1200 further includes a memory.
  • the processor 1220, the transceiver 1210 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 1220 is used to execute the computer in the memory. program to control the transceiver 1210 to send and receive signals.
  • the above-mentioned processor 1220 can be combined with the memory to form a processing device, and the processor 1220 is configured to execute the program codes stored in the memory to realize the above-mentioned functions.
  • the memory can also be integrated in the processor 1220 or independent of the processor 1220 .
  • the processor 1220 may correspond to the processing unit in FIG. 11 .
  • the transceiver 1210 described above may correspond to the transceiver unit in FIG. 11 .
  • the transceiver 1210 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.
  • the terminal device 1200 shown in FIG. 12 can implement the methods shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 involving various processes of the terminal device.
  • the operations and/or functions of each module in the terminal device 1200 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 1220 may be used to perform the actions described in the foregoing method embodiments that are implemented inside the terminal device, and the transceiver 1210 may be used to execute the actions described in the foregoing method embodiments that the terminal device sends to or receives from the network node. action.
  • the transceiver 1210 may be used to execute the actions described in the foregoing method embodiments that the terminal device sends to or receives from the network node. action.
  • the above-mentioned terminal device 1200 may further include a power supply for providing power to various devices or circuits in the terminal device.
  • the terminal device 1200 may also include one or more of an input unit, a display unit, an audio circuit, a camera, a sensor, etc., and the audio circuit may also include a speaker, a microphone, etc. Wait.
  • FIG. 13 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1300 may be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments.
  • the network device 1300 includes a processor 1320 and a transceiver 1310.
  • the network device 1300 further includes a memory.
  • the processor 1320, the transceiver 1310 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 1320 is used to execute the computer in the memory. program to control the transceiver 1310 to send and receive signals.
  • the network device 1300 shown in FIG. 13 can implement the methods shown in FIG. 6 , FIG. 8 , FIG. 9 , and FIG. 10 involving various processes of the network device.
  • the operations and/or functions of each module in the network device 1300 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the network device 1300 shown in FIG. 13 is only a possible architecture of the network device, and should not constitute any limitation to the present application.
  • the methods provided in this application may be applicable to network devices of other architectures.
  • network equipment including CU, DU, and AAU, etc. This application does not limit the specific architecture of the network device.
  • An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.
  • the above-mentioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • MCU microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • the methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is executed by one or more processors, makes the device including the processor The method in the above embodiment is performed.
  • the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, and when the program codes are executed by one or more processors, the processing includes the processing
  • the device of the controller executes the method in the above-mentioned embodiment.
  • the present application further provides a system, which includes the aforementioned one or more network devices.
  • the system may further include one or more of the aforementioned terminal devices.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules may be combined or integrated into Another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of modules may be in electrical, mechanical or other forms.
  • the processor may be a central processing unit (English: Central Processing Unit, referred to as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, referred to as: DSP), application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as: ASIC) and so on.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the aforementioned program can be stored in a readable memory.
  • the steps including the above method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviated as: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Les modes de réalisation de la présente demande concernent un procédé de communication, un dispositif, et un support de stockage. Ledit procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations, les premières informations étant utilisées pour indiquer la longueur des premières informations d'identifiant, et les premières informations d'identifiant étant utilisées pour que le dispositif terminal demande un service de diffusion/multidiffusion multimédia ; et le dispositif terminal détermine, selon les premières informations, au moins un bit dans des informations d'identifiant de groupe mobile temporaire incluses dans les premières informations d'identifiant et/ou au moins un bit dans des informations d'identifiant d'un premier réseau inclus dans les premières informations d'identifiant, le premier réseau étant un réseau qui fournit un service pour le dispositif terminal. La présente invention permet d'améliorer la flexibilité de configuration et le taux d'utilisation de ressources.
PCT/CN2021/072620 2021-01-19 2021-01-19 Procédé de communication, dispositif, et support de stockage Ceased WO2022155768A1 (fr)

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