WO2024027320A1 - Procédé, dispositif et système de communication sans fil - Google Patents

Procédé, dispositif et système de communication sans fil Download PDF

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Publication number
WO2024027320A1
WO2024027320A1 PCT/CN2023/097706 CN2023097706W WO2024027320A1 WO 2024027320 A1 WO2024027320 A1 WO 2024027320A1 CN 2023097706 W CN2023097706 W CN 2023097706W WO 2024027320 A1 WO2024027320 A1 WO 2024027320A1
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WIPO (PCT)
Prior art keywords
network element
access
mobility management
information
logical
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PCT/CN2023/097706
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English (en)
Chinese (zh)
Inventor
李卓明
张继东
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华为技术有限公司
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Publication of WO2024027320A1 publication Critical patent/WO2024027320A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present application relates to the field of communications, and more specifically, to a wireless communication method, device and system.
  • the network architecture connecting the next generation radio access network (NG-RAN) and the core network (5g core network, 5GC) in the fifth generation new radio access technology ( 5th Generation new radio, 5G NR) communication system the bottom layer of the user plane between the radio access network (RAN) and the user plane function (UPF) is a routable and interoperable transmission network, and the user plane connection of the session relies on the dynamic endpoint address specified by the control plane.
  • the control plane between the RAN and the access and mobility management function (AMF) needs to configure each other's information in advance to establish a connection.
  • RAN needs to configure each AMF to be connected, including configuring the AMF name, public land mobile network identification (PLMN ID), supported network slice list, and interface address.
  • AMF also needs to obtain the configuration information of each RAN and establish a signaling connection.
  • AMF Set AMF set
  • All AMFs in the AMF Set have the ability to access context information of the same user terminal device. If an AMF fails, or the link between the RAN and the AMF fails, the RAN can reselect another AMF in the AMF Set to continue to serve the terminal through the next generation (wireless) application protocol (NGAP) message.
  • NGAP next generation application protocol
  • the RAN configuration requires the information of each AMF in the AMF Set and configures the signaling connection with each AMF. In addition, whether the AMF that provides services to the terminal device fails, or all links to this AMF fail, additional NGAP interface messages are required to replace the AMF that provides services for the terminal device to another AMF in the AMF set.
  • This application provides a wireless communication method, device and system, which can simplify interface configuration and reduce signaling overhead.
  • a wireless communication method includes: a network function set logical network element receives first information, the first information includes an identification of at least one instance access and mobility management network element, and the at least one instance access and mobility management network element includes a first instance access and mobility management network element; the network function set logical network element associates the first instance access and mobility management network element with the first logical access and mobility management network element, and the first instance access and mobility management network element The security management network element and the first logical access and mobility management network element belong to the first access and mobility management network element set.
  • the technical solution disclosed in this application associates instance access and mobility management network elements and logical access and mobility management network elements in the same access and mobility management network element set through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • the above method further includes: the network function set logical network element sends the second information to the first wireless access network, and the first wireless access network communicates with the first logical access network.
  • the second information includes at least one of the following information: the identification of the first logical access and mobility management network element; the capacity information of the first logical access and mobility management network element; A GUAMI list of globally unique access and mobility management network element identifiers serving the first logical access and mobility management network element.
  • the wireless access network can learn the information of its corresponding logical access and mobility management network element, and thus can send uplink messages to the logical access and mobility management network element.
  • the above method further includes: the network function set logical network element receives configuration information from the first radio access network through the first logical access and mobility management network element.
  • the configuration information includes the name of the first radio access network and a list of tracking areas TA managed by the first radio access network itself; the network function set logical network element sends the configuration information to the first logical access and mobility management network The first instance access and mobility management network element associated with the element. In this way, the instance access and mobility management network element can learn the configuration information of the radio access network with which it communicates, and thus can send downlink messages to the radio access network.
  • the above method further includes: the network function set logical network element receives the third information from the first radio access network through the first logical access and mobility management network element. , the third information comes from the first terminal device; the network function set logical network element determines that the first instance access and mobility management network element processes services for the first terminal device; the network function set logical network element sends the third information to the first Instance access and mobility management network elements.
  • the above method further includes: the network function set logical network element receives the fourth information from the first radio access network through the first logical access and mobility management network element. , the fourth information comes from the first terminal device; the network function set logical network element determines the second instance access and mobility management network element, and the second instance access and mobility management network element is the first access and mobility management network element.
  • the instance access and mobility management network element available in the element set, the second instance access and mobility management network element is associated with the first logical access and mobility management network element; the network function set logical network element is associated with the second logical access and mobility management network element.
  • the instance access and mobility management network element sends fourth information.
  • the network function set logical network element Before the network function set logical network element determines that the second instance access and mobility management network element serves the first terminal device, it may determine that the first instance access and mobility management network element terminates service, fails, or has a high load, etc. situation, it is not suitable to continue serving the first terminal device. In this way, when the instance access and mobility management network element serving the terminal device fails or the service quality is poor, the instance access and mobility management network element serving the terminal device can be replaced to avoid affecting the business of the terminal device. , improve user experience.
  • the above-mentioned third information is initial uplink information
  • the above-mentioned method further includes: the network function set logical network element determines access and mobility for the first terminal device based on the initial uplink information.
  • the corresponding terminal equipment next-generation application protocol interface identification AMF UE NGAP ID on the side of the sexual management network element; the network function set logical network element determines the first mapping relationship, and the first mapping relationship is the AMF UE NGAP ID and the first instance access and mobility Manage the mapping relationships of network elements.
  • the above third information includes the AMF UE NGAP ID
  • the above method further includes: the network function set logical network element sends the third information to the third information according to the first mapping relationship.
  • the network function set logical network element quickly sends the terminal device information to the instance access and mobility management network element serving the terminal device based on the UE's AMF UE NGAP ID and the saved mapping relationship, without any additional processing. Helps reduce information transmission delays and improve device performance.
  • the above method further includes: the network function set logical network element receives the third information from the first radio access network through the first logical access and mobility management network element. , the network function set logical network element obtains the terminal device next generation application protocol interface identification RAN UE NGAP ID corresponding to the wireless access network side determined by the first radio access network for the first terminal device from the third information; the network function set logic The network element determines a second mapping relationship, and the second mapping relationship is the mapping relationship between the RAN UE NGAP ID and the first link of the first logical access and mobility management network element.
  • the above method further includes: the network function set logical network element receives fifth information from the first instance access and mobility management network element, and the fifth information includes RAN UE NGAP ID; the network function set logical network element sends the fifth information to the first radio access network through the first link of the first logical access and mobility management network element according to the second mapping relationship, and the first radio access network
  • the access network is a wireless access network serving the first terminal device.
  • the network function set logical network element quickly sends the information of the terminal device to the wireless access network serving the terminal device through a specific link based on the RAN UE NGAP ID of the UE and the saved mapping relationship, without any additional processing. Helps reduce information transmission delays and improve device performance.
  • the above method further includes: the network function set logical network element receives sixth information from the first instance access and mobility management network element, and the sixth information is downlink
  • the paging information includes the identification of the first terminal device; the network function set logical network element determines at least one wireless access network connected to the first logical access and mobility management network element, and the at least one wireless access network includes the first The wireless access network; the network function set logical network element sends the sixth information to the first wireless access network.
  • the network function set logical network element when it sends downlink paging information, it can determine all logical access and mobility management network elements associated with the first instance access and mobility management network element, and then determine the logical access and mobility management network elements associated with the first instance access and mobility management network element.
  • the mobility management network element establishes all wireless access networks connected to the NG interface, and finally the network function set logical network element sends paging messages to these wireless access networks through the NG interface link.
  • the above method further includes: determining a third mapping relationship between the network function set logical network element, and the third mapping relationship is the identification of the first terminal device and the first instance access Mapping relationship with the mobility management network element; the network function set logical network element receives the seventh information from the first radio access network, the seventh information is the paging response information of the sixth information, and the seventh information includes the first terminal device identification; the network function set logical network element sends the seventh information to the first instance access and mobility management network element according to the third mapping relationship.
  • the above method further includes: the network function set logical network element determines the instance access and mobility management associated with the first logical access and mobility management network element The network element changes, and the above method further includes: the network function set logical network element sends eighth information to the first radio access network, where the eighth information includes the identification of the first logical access and mobility management network element, and the eighth information also It includes at least one of the following information: updated capacity information of the first logical access and mobility management network element; updated GUAMI list serving the first logical access and mobility management network element.
  • Network element information avoids affecting related networks or devices in providing services to terminal devices, helping to improve user experience.
  • the above-mentioned first information also includes one or more of the following information: an identifier of the first access and mobility management network element set; the first instance access Interface with mobility management network element Port address information; capacity information of the first instance access and mobility management network element.
  • the second aspect provides a wireless communication method.
  • the method includes: the first instance access and mobility management network element determines first information, the first information includes an identification of the first instance access and mobility management network element, the first instance access and mobility management network element The identifier is used by the network function set logical network element to associate the first instance access and mobility management network element with the first logical access and mobility management network element, and the first instance access and mobility management network element is associated with the first instance access and mobility management network element.
  • the logical access and mobility management network element belongs to the first access and mobility management network element set; the first instance access and mobility management network element sends the first information.
  • the technical solution disclosed in this application associates instance access and mobility management network elements and logical access and mobility management network elements in the same access and mobility management network element set through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • the above method further includes: the first instance access and mobility management network element receives the configuration information of the first wireless access network, and the first wireless access network communicates with The first logical access is connected to the mobility management network element, and the configuration information includes the name of the first radio access network and a list of tracking areas TA managed by the first radio access network itself.
  • the above method further includes: the first instance access and mobility management network element receiving third information, and the third information comes from the first terminal device.
  • the above method further includes: the first instance access and mobility management network element sends fifth information, and the fifth information includes the first radio access network as the first
  • the terminal equipment next generation application protocol interface identification RAN UE NGAP ID corresponding to the radio access network side determined by the terminal equipment.
  • the RAN UE NGAP ID is used for the network function set logical network element to determine the second mapping relationship.
  • the second mapping relationship is RAN UE NGAP. The mapping relationship between the ID and the first link between the first logical access and the mobility management network element.
  • the above method further includes: the first instance access and mobility management network element sends sixth information, where the sixth information is downlink paging information, and the sixth information includes The identifier of the first terminal device, the identifier of the first terminal device is used by the network function set logical network element to determine the first wireless access network, and the first wireless access network is connected to the first logical access and mobility management network element, The first logical access and mobility management network element is associated with the first instance access and mobility management network element.
  • the above method further includes: the first instance access and mobility management network element receives seventh information, where the seventh information is the paging response information of the sixth information,
  • the seventh information includes the identification of the first terminal device.
  • the above-mentioned first information also includes one or more of the following information: the identification of the first access and mobility management network element set; the first instance access Interface address information with the mobility management network element; capacity information of the first instance access and mobility management network element.
  • a wireless communication device in a third aspect, includes: a transceiver unit configured to receive first information, the first information includes an identifier of at least one instance access and mobility management network element, and the at least one instance access and mobility management network element includes a first instance access and mobility management network element.
  • Mobility management network element a processing unit configured to associate the first instance access and mobility management network element with the first logical access and mobility management network element, the first instance access and mobility management network element and No.
  • a logical access and mobility management network element belongs to the first set of access and mobility management network elements.
  • the transceiver unit is also used to send the second information to the first radio access network, the first radio access network and the first logical access and mobility management
  • the network elements are connected, and the second information includes at least one of the following information: the identification of the first logical access and mobility management network elements; the capacity information of the first logical access and mobility management network elements; GUAMI list of globally unique access and mobility management network element identifiers for access and mobility management network element services.
  • the transceiver unit is further configured to receive configuration information from the first radio access network through the first logical access and mobility management network element, where the configuration information includes a third A name of the radio access network and a list of tracking areas TA managed by the first radio access network itself; the network function set logical network element sends the configuration information to the third logical access and mobility management network element associated with the first logical access network element An instance access and mobility management network element.
  • the transceiver unit is also configured to receive third information through the first logical access and mobility management network element, where the third information comes from the first terminal device; the processing unit , and is also used to determine that the first instance access and mobility management network element processes services for the first terminal device; the transceiver unit is also used to send the third information to the first instance access and mobility management network element.
  • the transceiver unit is also configured to receive fourth information through the first logical access and mobility management network element, where the fourth information comes from the first terminal device; the processing unit , is also used to determine the second instance access and mobility management network element.
  • the second instance access and mobility management network element is the instance access and mobility management available in the first access and mobility management network element set.
  • Network element, the second instance access and mobility management network element is associated with the first logical access and mobility management network element; the transceiver unit is also used to send the fourth instance to the second instance access and mobility management network element. information.
  • the above third information is initial uplink information
  • the processing unit is also used to determine the access and mobility management network element side for the first terminal device based on the initial uplink information.
  • the corresponding terminal device next generation application protocol interface identification AMF UE NGAP ID; determine the first mapping relationship, which is the mapping relationship between the AMF UE NGAP ID and the first instance access and mobility management network element.
  • the third information includes the AMF UE NGAP ID, and the transceiver unit is also used to send the third information to the first instance access and reception unit according to the first mapping relationship. Mobility management network element.
  • the transceiver unit is also used to obtain the terminal device next generation application protocol interface corresponding to the wireless access network side determined by the first wireless access network for the first terminal device. Identifies the RAN UE NGAP ID; the processing unit is also used to determine a second mapping relationship.
  • the second mapping relationship is the mapping relationship between the RAN UE NGAP ID and the first link between the first logical access and the mobility management network element.
  • the transceiver unit is also used to receive fifth information from the first instance access and mobility management network element, where the fifth information includes the RAN UE NGAP ID; transceiver The unit is further configured to send the fifth information to the first radio access network through the first link of the first logical access and mobility management network element according to the second mapping relationship, and the first radio access network is for the third A wireless access network served by a terminal device.
  • the transceiver unit is also configured to receive sixth information from the first instance access and mobility management network element, where the sixth information is downlink paging information, including An identification of the first terminal device; a processing unit, also configured to determine at least one wireless access network connected to the first logical access and mobility management network element, where the at least one wireless access network includes the first wireless access network; The transceiver unit is also used to send the sixth information to the first radio access network.
  • the processing unit is further configured to determine a third mapping relationship, where the third mapping relationship is the identification of the first terminal device and the first instance access and mobility management network The mapping relationship between elements; the transceiver unit is also used to receive the seventh information from the first wireless access network, the seventh information is the paging response information of the sixth information, the seventh information includes the identification of the first terminal device; the transceiver unit , and is also used to send the seventh information to the first instance access and mobility management network element according to the third mapping relationship.
  • the processing unit is also used to determine that the instance access and mobility management network element associated with the first logical access and mobility management network element has changed;
  • the transceiver unit is also configured to send eighth information to the first radio access network, where the eighth information includes an identifier of the first logical access and mobility management network element, and the eighth information also includes at least one of the following information: first The updated capacity information of the logical access and mobility management network element; the updated GUAMI list serving the first logical access and mobility management network element.
  • the above-mentioned first information also includes one or more of the following information: the identification of the first access and mobility management network element set; the first instance access Interface address information with the mobility management network element; capacity information of the first instance access and mobility management network element.
  • a fourth aspect provides a wireless communication device.
  • the device includes: a processing unit configured to determine first information.
  • the first information includes an identifier of a first instance access and mobility management network element.
  • the identifier of the first instance access and mobility management network element is used for a network function set.
  • the logical network element associates the first instance access and mobility management network element with the first logical access and mobility management network element, and the first instance access and mobility management network element and the first logical access and mobility management network element
  • the management network element belongs to the first set of access and mobility management network elements; the transceiver unit is used to send the first information.
  • the transceiver unit is configured to receive configuration information of the first radio access network, the first radio access network and the first logical access and mobility management network element Connected, the configuration information includes the name of the first radio access network and a list of tracking areas TA managed by the first radio access network itself.
  • the transceiver unit is configured to receive third information, and the third information comes from the first terminal device.
  • the transceiver unit is configured to send fifth information, where the fifth information includes the corresponding radio access network side determined by the first radio access network for the first terminal device.
  • the next generation application protocol interface identification of the terminal equipment is RAN UE NGAP ID.
  • the RAN UE NGAP ID is used for the network function set logical network element to determine the second mapping relationship.
  • the second mapping relationship is the RAN UE NGAP ID and the first logical access and mobility management. The mapping relationship of the first link of the network element.
  • the transceiver unit is configured to send sixth information, the sixth information is downlink paging information, the sixth information includes an identification of the first terminal device, and the first terminal device The identifier is used by the network function set logical network element to determine the first wireless access network.
  • the first wireless access network is connected to the first logical access and mobility management network element.
  • the first logical access and mobility management network element Associated with the first instance access and mobility management network element.
  • the transceiver unit is configured to receive seventh information, where the seventh information is the paging response information of the sixth information, and the seventh information includes an identification of the first terminal device.
  • the above-mentioned first information also includes one or more of the following information: an identifier of the first access and mobility management network element set; the first instance access Interface address information with the mobility management network element; capacity information of the first instance access and mobility management network element.
  • a wireless communication device for implementing the above method.
  • the wireless communication device may be the network function set logical network element entity in the above first to second aspects, or include the above network function set logical network
  • the wireless communication device may be the first instance access and mobility management network element entity in the above-mentioned first aspect to the second aspect, or include the above-mentioned first instance access and mobility management network element Physical device.
  • the wireless communication device includes corresponding modules, units, or means (means) for implementing the above method.
  • the modules, units, or means can be implemented by hardware, software, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • the wireless communication device may include a processing module and a transceiver module.
  • the transceiver module which may also be called a transceiver unit, is used to implement the sending and/or receiving functions in any of the above aspects and any possible implementation manner thereof.
  • the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • This processing module can be used to implement the processing functions in any of the above aspects and any possible implementation manner thereof.
  • the processing module may be, for example, a processor.
  • the transceiver module includes a sending module and a receiving module, respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation thereof.
  • a sixth aspect provides a wireless communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading instructions in the memory, execute the method according to any of the above aspects according to the instructions.
  • the wireless communication device may be the policy control entity in the above-mentioned first to fourth aspects, or a device including the above-mentioned policy control entity; or, the wireless communication device may be the network slice selection in the above-mentioned first to fourth aspects. entity or mobility management entity, or a device including the above-mentioned network slice selection entity or mobility management entity.
  • the wireless communication device further includes a memory, and the memory is used to store necessary program instructions and data.
  • the wireless communication device is a chip or a chip system.
  • the wireless communication device when it is a chip system, it may be composed of a chip, or may include a chip and other discrete devices.
  • a seventh aspect provides a wireless communication device, including: a processor and an interface circuit; the interface circuit is used to receive computer programs or instructions and transmit them to the processor; the processor is used to execute the computer program or instructions to enable the wireless communication
  • the device performs any of the above methods.
  • the wireless communication device is a chip or a chip system.
  • the wireless communication device when it is a chip system, it may be composed of a chip, or may include a chip and other discrete devices.
  • a communication system including the network function set logical network element of the first aspect and the first instance access and mobility management network element of the second aspect.
  • the network function set logical network element is used to perform the method of the first aspect
  • the first instance access and mobility management network element is used to perform the method of the second aspect.
  • the above communication system may also include a first radio access network configured to send configuration information, where the configuration information includes the name of the first radio access network and a list of tracking areas TA managed by the first radio access network itself; Receive second information, the first radio access network is connected to the first logical access and mobility management network element, and the second information includes at least one of the following information: an identifier of the first logical access and mobility management network element ; Capacity information of the first logical access and mobility management network element; GUAMI list of globally unique access and mobility management network element identifiers serving the first logical access and mobility management network element.
  • the first radio access network is also configured to receive eighth information.
  • the eighth information includes the identity of the first logical access and mobility management network element.
  • the eighth information also includes at least one of the following information: first Logical access and mobility management network The updated capacity information of the element; the updated GUAMI list serving the first logical access and mobility management network element.
  • a computer program product includes: computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute the methods in the above aspects.
  • the above computer program code can be stored in whole or in part on the first storage medium, where the first storage medium can be packaged together with the processor, or can be packaged separately from the processor. This is not the case in the embodiments of this application. Specific limitations.
  • a computer-readable medium stores program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to perform the methods in the above aspects.
  • a chip system including a memory and a processor.
  • the memory is used to store a computer program.
  • the processor is used to call and run the computer program from the memory, so that the communication device installed with the chip system executes Methods in any of the above first to fourth aspects and possible implementations thereof.
  • the chip system may include an input chip or interface for sending information or data, and an output chip or interface for receiving information or data.
  • Figure 1 is a schematic diagram of a system architecture according to an embodiment of the present application.
  • Figure 2 is a schematic diagram of a communication system applicable to this application.
  • Figure 3 is a schematic diagram of the service-oriented architecture of the 5G system applicable to this application.
  • Figure 4 is a schematic diagram of the RAN and 5G core network applicable to this application.
  • Figure 5 is a schematic diagram of the connection between the RAN and the AMF set applicable to this application.
  • Figure 6 is a system architecture diagram provided by this embodiment of the present application.
  • Figure 7 is a first schematic flow chart of the wireless communication method of the present application.
  • Figure 8 is a second schematic flow chart of the wireless communication method of the present application.
  • Figure 9 is a third schematic flow chart of the wireless communication method of the present application.
  • FIG. 10 is a schematic block diagram of a wireless communication device provided by this application.
  • Figure 11 is a schematic block diagram of an example of a wireless communication device provided by this application.
  • Figure 1 is a schematic diagram of a communication system provided by this application.
  • the system includes a network function set logical network element 110 and a first instance access and mobility management network element 120.
  • the system 100 may also include a first access network 130.
  • the system 100 may be used to perform a wireless communication method according to the embodiment of the present application.
  • the network function set logical network element 110 is configured to receive first information.
  • the first information includes the identification of at least one instance access and mobility management network element.
  • the at least one instance access and mobility management network element includes the first instance access. and mobility management network element 120; the network function set logical network element associates the first instance access and mobility management network element 120 with the first logical access and mobility management network element, and the first instance access and mobility management network element
  • the management network element and the first logical access and mobility management network element belong to the first access and mobility management network element set.
  • the first instance access and mobility management network element 120 is used to determine the first information and send the first information to the network function set logical network element 110.
  • the first radio access network 130 is configured to receive configuration information from the network function set logical network element 110.
  • the configuration information includes the first logical access and mobility management network element associated with the first instance access and mobility management network element 120. Identity of the mobility management network element.
  • the instance access and mobility management network elements and logical access and mobility management within the same access and mobility management network element set are configured through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • the system 100 shown in Figure 1 can be applied to the fifth generation (5th generation, 5G) network architecture shown in Figure 2 or 3, and of course can also be used in future network architectures, such as the sixth generation (6th generation, 6G) Network architecture, etc., are not specifically limited in the embodiments of this application.
  • FIG. 2 shows a schematic architectural diagram of a basic 5G system 200.
  • the system 200 includes: policy control function (PCF), AMF, session management function (SMF), radio access network (RAN), unified data management ( unified data management (UDM), data network (DN), user plane function (UPF), UE, application function (AF), network slice selection function (NSSF) , and/or authentication server function (AUSF), etc.
  • PCF policy control function
  • AMF session management function
  • RAN radio access network
  • UDM unified data management
  • DN data network
  • UPF data network slice selection function
  • AUSF authentication server function
  • the following functions may also be included in Figure 2 (not shown in Figure 2): unified data storage (unified data repository, UDR), capability exposure function (network exposure function, NEF), or network storage function (NF repository) function, NRF).
  • unified data storage unified data repository, UDR
  • NEF network exposure function
  • NF repository network storage function
  • each network element the main functions of each network element are described as follows:
  • the terminal equipment in the embodiment of this application may be: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile Station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • access terminal user unit, user station, mobile Station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device, a vehicle-mounted device, etc. with wireless connectivity capabilities.
  • some examples of terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving or autopilot, wireless terminals in remote medical surgery, smart grids ( Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocols (session initiation protocol, SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capabilities, computing device or other device connected to a wireless modem Processing equipment, vehicle-mounted equipment, wearable devices, terminal equipment in future 5G networks or terminal equipment in future evolved public land mobile communication networks (public land mobile network, PLMN) equipment, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • a wireless access network is an access network that implements access network functions based on wireless communication technology.
  • the wireless access network can manage wireless resources, provide wireless access or air interface access services to terminals, and then complete the forwarding of control signals and user data between the terminal and the core network.
  • the radio access network can be an evolved base station (eNB or eNodeB) in the LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario.
  • the access device can be a relay station, an access point, a vehicle-mounted device, a wearable device, an access device in a 5G network or an access device in a future evolved PLMN network, etc. It can be an access point in a WLAN ( access point (AP), which may be a gNB in the NR system.
  • AP access point
  • the embodiment of this application is not limited.
  • Access and mobility management function network elements are mainly used for mobility management and access management, etc., and can be used to implement other functions in the mobility management entity (mobility management entity, MME) function besides session management, such as legal Functions such as monitoring, or access authorization (or authentication), and are also used to transmit user policies between the UE and the PCF. In the embodiment of this application, it can be used to implement the functions of access and mobility management network elements.
  • mobility management entity mobility management entity, MME
  • session management such as legal Functions such as monitoring, or access authorization (or authentication)
  • it can be used to implement the functions of access and mobility management network elements.
  • the session management function network element is mainly used for session management, Internet protocol (IP) address allocation and management of terminal devices, selection of user plane function (UPF) network elements, policy control and charging function interface endpoints And downstream data notifications, etc. In the embodiment of this application, it can be used to implement the function of the session management network element.
  • IP Internet protocol
  • UPF user plane function
  • User plane functional network elements can be used for packet routing and forwarding, or QoS parameter processing of user plane data.
  • User data can be accessed to the data network (DN) through this network element.
  • DN data network
  • it can be used to implement the functions of user plane network elements. For example, when a session is established on different UPFs, the UE's service experience will be different. Therefore, the SMF needs to select an appropriate UPF for the UE's session.
  • the policy control network element is a unified policy framework used to guide network behavior and provide policy rule information for control plane functional network elements (such as AMF, SMF network elements, etc.). Mainly responsible for policy control functions such as billing, QoS bandwidth guarantee and mobility management, and UE policy decision-making at session and service flow levels.
  • the network capability opening function network element is used to open to the outside the business and network capability information provided by the 3GPP network function (such as terminal location, whether the session is reachable), etc.
  • Application function network elements are mainly used to transmit the requirements of the application side to the network side, such as QoS requirements or user status event subscriptions.
  • AF can be a third-party functional entity or an application service deployed by an operator, such as an IMS voice call service.
  • NEF can also be used for authorization processing when interacting with the core network.
  • the third-party application function directly sends a request message to NEF. NEF determines whether the AF is allowed to send the request message. If verified, If passed, the request message will be forwarded to the corresponding PCF or unified data management UDM.
  • the unified data management network element is mainly used for unified data management, supporting authentication trust status processing in the 3GPP authentication and key agreement mechanism, user identity processing, access authorization, registration and mobility management, subscription management, short message management, etc.
  • the unified data storage network element is mainly used for the access function of contract data, policy data, application data and other types of data.
  • N7 The interface between PCF and SMF, used to deliver PDU session granularity and service data flow granularity control policies.
  • N15 The interface between PCF and AMF, used to deliver UE policies and access control related policies.
  • N5 The interface between AF and PCF, used for issuing application service requests and reporting network events.
  • N4 The interface between SMF and UPF. It is used to transfer information between the control plane and the user plane, including controlling the distribution of forwarding rules, QoS control rules, traffic statistics rules, etc. for the user plane and reporting of user plane information.
  • N11 The interface between SMF and AMF, used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to UE, transfer radio resource control information sent to RAN, etc.
  • N2 The interface between AMF and RAN, used to transmit wireless bearer control information from the core network side to the RAN.
  • N1 The interface between AMF and UE, independent of access, used to deliver QoS control rules to UE, etc.
  • N8 The interface between AMF and UDM, used for AMF to obtain access and mobility management-related subscription data and authentication data from UDM, and for AMF to register UE's current mobility management-related information with UDM.
  • N10 The interface between SMF and UDM, used for SMF to obtain session management-related subscription data from UDM, and for SMF to register UE current session-related information with UDM.
  • UDR can also have direct interfaces with PCF and UDM, corresponding to the N36 interface and N35 interface respectively.
  • the N36 interface is used by PCF to obtain policy-related contract data and application data-related information from UDR.
  • the N35 interface Used by UDM to obtain user subscription data information from UDR.
  • the above network architecture applied to the embodiments of the present application is only an example of a network architecture described from the perspective of a traditional point-to-point architecture and a service-oriented architecture.
  • the network architecture applicable to the embodiments of the present application is not limited thereto. Any network architecture that can realize the functions of each of the above network elements is suitable for the embodiments of this application.
  • the above network elements can also be called entities, equipment, devices or modules, etc., and this application is not specifically limited to Certainly.
  • the description of the network element is omitted in some descriptions.
  • the SMF network element is referred to as SMF.
  • the "SMF” should be understood as the SMF network element.
  • the above network element or function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a platform for example, a cloud platform.
  • the above network element or function can be implemented by one device, or can be implemented by multiple devices together, or can be a functional module in one device, which is not specifically limited in the embodiments of this application.
  • each component network element is only exemplary, and not all functions of each component network element are necessary when applied to the embodiments of the present application.
  • each network element such as PCF, AMF, etc.
  • Figure 2 the naming of each network element (such as PCF, AMF, etc.) included in Figure 2 is only a name, and the name does not limit the function of the network element itself.
  • each of the above network elements may also have other names, which are not specifically limited in the embodiments of this application.
  • some or all of the above-mentioned network elements may use the terminology used in 5G, or may be named by other names, etc., which will be described uniformly here and will not be described in detail below.
  • each network element of the control plane function in Figure 2 can also communicate through a service-oriented interface.
  • the service-oriented interface provided by AMF can be Namf
  • the service-oriented interface provided by SMF can be Nsmf
  • UDM The service-oriented interface provided externally can be Nudm
  • the service-oriented interface provided by AF can be Naf
  • the service-oriented interface provided externally by PCF can be Npcf, etc.
  • Figure 3 shows a schematic diagram of the architecture based on service-based interfaces. As shown in Figure 3, the architecture includes: NSSF, AUSF, UDM, NEF, NRF, PCF, AF, AMF, SMF, UE, RAN, UPF, and/or DN, etc.
  • the service-oriented interface provided by NSSF to the outside world can be Nnssf
  • the service-oriented interface provided by NEF to the outside world can be Nnef
  • the service-oriented interface provided by NRF to the outside world can be Nnrf
  • the service-oriented interface provided by AMF to the outside world can be Namf
  • SMF The service interface provided by UDM can be Nsmf
  • the service interface provided by UDM can be Nudm
  • the service interface provided by AF can be Naf
  • the service interface provided by PCF can be Npcf
  • the service interface provided by AUSF can be Nausf
  • the service-oriented interface provided by CHF to the outside world can be Nchf
  • the interface between the control plane function and RAN and UPF is a non-service-oriented interface.
  • the UE is connected to the AMF through the N1 interface, and the UE is connected to the RAN through the radio resource control (RRC) protocol; the RAN is connected to the AMF through the N2 interface, and the RAN is connected to the UPF through the N3 interface; the UPF is connected to the DN through the N6 interface.
  • RRC radio resource control
  • UPF connects with SMF through N4 interface.
  • 5G system architecture in the standard.
  • the connection relationship of the architecture 300 will not be described in detail here.
  • FIG 4 shows a network architecture diagram connecting the existing radio access network (NG-RAN) and 5G core network (5g core network, 5GC) of the 5G mobile communication network.
  • (R)AN is an access network, and terminal devices access the core network through the access network.
  • There are two kinds of base stations in the 5G wireless access network one is the gNB (gNodeB) that supports 5G new wireless, and the other is the evolved base station ng-eNB (ng-eNodeB) that supports 4G wireless. Both base stations pass The NG interface (also known as the N2 interface) is connected to the 5G core network.
  • AMF mainly receives and sends RAN signaling through the NG interface to complete the user registration process and session management (session management, SM).
  • UPF is the user plane function and is responsible for forwarding user data.
  • NG-RAN nodes are connected to the core network through NG interfaces, including the NG-C between AMF and NG-RAN, and the NG-U interface between UPF and NG-U.
  • the bottom layer of the user plane between RAN and UPF is a routable and interoperable transmission network.
  • the user plane connection of the session is dynamically established based on the specified endpoint address on the control plane. There is no need for both parties to configure fixed connections for each other in advance. However, the control plane between RAN and AMF needs to configure each other's information in advance to establish a connection.
  • RAN needs to configure each AMF to be connected, including configuring the AMF name, public land mobile network identification PLMN ID, supported network slice list, and interface address. AMF also needs to obtain the configuration information of each RAN and establish a signaling connection.
  • AMF Set AMF set
  • All AMFs in the AMF Set have the ability to access the context information of the same user terminal device. If an AMF fails, or the link between the RAN and the AMF fails, the RAN can reselect another AMF in the AMF Set to continue to be the terminal through the next generation (wireless) application protocol (NGAP) message.
  • NGAP next generation
  • RAN configuration requires each AMF in the AMF Set, and configures the signaling connection with each AMF, also called transport network layer association (TNLA).
  • TNLA transport network layer association
  • each AMF in the AMF Set is configured with the corresponding terminal equipment interface identification (AMF UE NGAP ID) range on the AMF side, and the NGAP identification can only be assigned to terminal equipment within this range.
  • the terminal device changes the AMF of the service, it needs to replace the corresponding terminal device interface identifier (AMF UE NGAP ID) on the new AMF side through NGAP signaling.
  • the new AMF When an AMF fails and another AMF in the AMF Set takes over the failed AMF to provide services for terminal equipment, the new AMF will assign a new AMF UE NGAP ID to the terminal equipment and send a binding update message to the RAN. Notify the RAN that the new AMF provides services for this terminal device.
  • RAN When the signaling link from RAN to an AMF fails, RAN will select another reachable AMF in the AMF Set to send a request message. After receiving the request message, the new AMF will allocate a new AMF UE NGAP ID to this terminal device. And send the new AMF UE NGAP ID to the RAN. At this time, the new AMF starts to provide services for this terminal device.
  • the RAN needs to configure the information of each AMF in the AMF Set and configure the signaling connection with each AMF.
  • additional NGAP interface messages are required to replace the AMF that provides services for the terminal device to another AMF in the AMF set.
  • this application proposes a wireless communication method and device that can simplify the NG interface link configuration of the RAN, shield the RAN from changes to the AMF instances in the AMF Set, and avoid the NG interface signaling load.
  • Figure 6 shows a system architecture diagram provided by this embodiment of the present application.
  • a network-function set logic function (NSLF) is added to the system architecture provided by the embodiment of the present application.
  • NSLF uses the existing NG interface to connect to the RAN (which can be gNB, ng-eNB, etc.) and presents one or more logical AMFs to the RAN. No upgrades or changes to the RAN of the existing network are required.
  • NSLF manages the NG interface link to the RAN.
  • NSLF virtualizes one or more AMF instances in the AMF Set into one or more logical AMFs to provide AMF services to the outside world.
  • the RAN configures the NG interface link to the logical AMF.
  • the endpoint address of the NG interface link is the NSLF interface address.
  • NSLF and each AMF connection in the AMF Set associate a logical AMF to one or more AMF instances in the AMF Set.
  • NSLF selects the AMF instance that serves a certain terminal device; in the downlink signaling direction, the AMF instance forwards signaling related to the terminal device to the RAN that the terminal device is currently connected to through NSLF.
  • NSLF adjusts the association between the logical AMF and one or more AMF instances in the AMF Set, and the RAN does not perceive changes in the AMF instances.
  • Figure 7 shows an example schematic flow chart of the wireless communication method of the present application. In the following, each step is combined to apply the wireless communication method 700 to the network architecture shown in FIGS. 2 to 6 .
  • the network function set logical network element receives the first information.
  • the first information includes the identification of at least one instance access and mobility management network element.
  • the at least one instance access and mobility management network element includes the first instance access and mobility management network element. Sexually managed network elements.
  • the first information also includes one or more of the following information: the identification of the first access and mobility management network element set; the interface address information of the first instance access and mobility management network element; Capacity information of instance access and mobility management network elements.
  • the identifier of the first access and mobility management network element set is used by the network function set logical network element to determine the set, and further determine the access and mobility management network elements included in the set, such as instance access and mobility Management network element and logical access and mobility management network element; the interface address information of the first instance access and mobility management network element is used for the network function set logical network element to determine the first instance access and mobility management network element.
  • the capacity information of the first instance access and mobility management network element is used by the network function set logical network element to determine the first instance access and mobility management
  • the load capacity of the network element is determined to determine whether it can provide services to the terminal equipment.
  • the network function set logical network element associates the first instance access and mobility management network element with the first logical access and mobility management network element.
  • the first instance access and mobility management network element and the first logical The access and mobility management network elements belong to the first set of access and mobility management network elements.
  • the network function set logical network element sends the second information to the first radio access network, and the first radio access network is connected to the first logical access and mobility management network element.
  • the second information includes at least one of the following information: the identification of the first logical access and mobility management network element; the capacity information of the first logical access and mobility management network element; GUAMI list of globally unique access and mobility management network element identifiers for network element services.
  • the wireless access network can learn the information of its corresponding logical access and mobility management network element, and thus can send uplink messages to the logical access and mobility management network element.
  • the network function set logical network element receives configuration information from the first radio access network through the first logical access and mobility management network element.
  • the configuration information includes the name of the first radio access network and the first radio access network element. A list of tracking area TAs managed by the access network itself.
  • the network function set logical network element sends the configuration information to the first instance access and mobility management network element associated with the first logical access and mobility management network element. In this way, the instance access and mobility management network element can learn the configuration information of the radio access network with which it communicates, and thus can send downlink messages to the radio access network.
  • the network function set logical network element receives the third information through the first logical access and mobility management network element, and the third information comes from the first terminal device.
  • the network function set logical network element determines the first instance access and mobility management network element Process services for the first terminal device; the network function set logical network element sends the third information to the first instance access and mobility management network element.
  • the network function set logical network element receives the fourth information through the first logical access and mobility management network element, and the fourth information comes from the first terminal device.
  • the network function set logical network element determines the second instance access and mobility management network element, and the second instance access and mobility management network element is the instance access and mobility available in the first access and mobility management network element set.
  • the second instance access and mobility management network element is associated with the first logical access and mobility management network element.
  • the network function set logical network element sends the fourth information to the second instance access and mobility management network element.
  • the network function set logical network element may determine that the first instance access and mobility management network element terminates service, fails, or has a high load, etc. situation, it is not suitable to continue serving the first terminal device. In this way, when the instance access and mobility management network element serving the terminal device fails or the service quality is poor, the instance access and mobility management network element serving the terminal device can be replaced to avoid affecting the business of the terminal device. , improve user experience.
  • the above-mentioned third information is initial uplink information.
  • the network function set logical network element determines the terminal equipment next generation application protocol interface identification AMF UE corresponding to the access and mobility management network element side for the first terminal equipment based on the initial uplink information. NGAP ID.
  • the network function set logical network element determines the first mapping relationship, and the first mapping relationship is the mapping relationship between the AMF UE NGAP ID and the first instance access and mobility management network element.
  • the third information includes the AMF UE NGAP ID, and the above method also includes: the network function set logical network element sends the third information to the first instance access and mobility management network element according to the first mapping relationship.
  • the network function set logical network element quickly sends the terminal device information to the instance access and mobility management network element serving the terminal device based on the UE's AMF UE NGAP ID and the saved mapping relationship, without any additional processing. It helps reduce the delay of information transmission and improve the performance of terminal equipment.
  • the network function set logical network element receives the third information through the first logical access and mobility management network element, and the network function set logical network element obtains the first radio access network determined for the first terminal device from the third information.
  • the corresponding terminal equipment next generation application protocol interface identification RAN UE NGAP ID on the radio access network side.
  • the network function set logical network element determines the second mapping relationship, and the second mapping relationship is the mapping relationship between the RAN UE NGAP ID and the first link of the first logical access and mobility management network element.
  • the network function set logical network element receives the fifth information from the first instance access and mobility management network element, and the fifth information includes the RAN UE NGAP ID.
  • the network function set logical network element sends the fifth information to the first radio access network through the first link of the first logical access and mobility management network element according to the second mapping relationship.
  • the first radio access network is for The wireless access network served by the first terminal device.
  • the network function set logical network element quickly sends the information of the terminal device to the wireless access network serving the terminal device through a specific link based on the RAN UE NGAP ID of the UE and the saved mapping relationship, without any additional processing. It helps to reduce the delay of information transmission and improve the performance of terminal equipment.
  • the network function set logical network element receives sixth information from the first instance access and mobility management network element, where the sixth information is downlink paging information, including the identity of the first terminal device.
  • the network function set logical network element determines at least one wireless access network connected to the first logical access and mobility management network element, and the at least one wireless access network includes the first wireless access network.
  • the network function set logical network element sends sixth information to the first radio access network.
  • the network function set logical network element when the network function set logical network element sends downlink paging information, it can determine all logical access and mobility management network elements associated with the first instance access and mobility management network element, and then determine the logical access and mobility management network elements associated with the first instance access and mobility management network element.
  • the mobility management network element establishes all wireless access networks connected to the NG interface, and finally the network function set logical network element sends paging messages to these wireless access networks through the NG interface link.
  • the network function set logical network element determines a third mapping relationship, and the third mapping relationship is the mapping relationship between the identification of the first terminal device and the first instance access and mobility management network element; the network function set logical network element receives the information from the first wireless network element.
  • the seventh information of the line access network the seventh information is the paging response information of the sixth information, the seventh information includes the identification of the first terminal device; the network function set logical network element sends the seventh information according to the third mapping relationship Access and mobility management network element to the first instance.
  • the network function set logical network element determines that the instance access and mobility management network element associated with the first logical access and mobility management network element has changed, and the network function set logical network element provides the first wireless access
  • the network sends the eighth message.
  • the eighth information includes the identification of the first logical access and mobility management network element, and the eighth information also includes at least one of the following information: updated capacity information of the first logical access and mobility management network element; for the first Updated GUAMI list of logical access and mobility management network element services.
  • the instance access and mobility management network element associated with the logical access and mobility management network element changes, the updated logical access and mobility management can be quickly notified to the corresponding wireless access network.
  • Network element information avoids affecting related networks or devices in providing services to terminal devices, helping to improve user experience.
  • changes in the instance access and mobility management network element associated with the first logical access and mobility management network element include but are not limited to the instance access associated with the first logical access and mobility management network element.
  • the number of mobility management network elements changes, for example, increases or decreases, or the instance access and mobility management network elements associated with the first logical access and mobility management network element changes, for example, from the first instance
  • the access and mobility management network element is changed to the second instance access and mobility management network element, and so on.
  • the technical solution disclosed in this application associates instance access and mobility management network elements and logical access and mobility management network elements within the same access and mobility management network element set through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • Figure 8 is a second schematic flow chart of the wireless communication method of the present application.
  • NSLF associates one or more logical AMFs of an AMF Set to an AMF instance.
  • the first instance access and mobility management network element corresponds to AMF instance 1
  • the first logical access and mobility management network element corresponds to logical AMF 1
  • the second logical access and mobility management network element corresponds to logical AMF 2
  • the first radio access network corresponds to RAN 1
  • the second radio access network corresponds to RAN 2.
  • NSLF configures the NG interface address, AMF Set information and AMF Set resources.
  • NSLF can configure the NG interface address by configuring IP address 1 and IP address 2, and the corresponding stream control transport protocol (SCTP) port number as the NG interface.
  • SCTP stream control transport protocol
  • NSLF configures AMF Set information, including the name of the AMF Set, PLMN ID, AMF region, serving area, supported network slices, etc.
  • NSLF configures the resources of the AMF Set, which includes a list of globally unique AMF identifiers (GUMAI), which includes the range of AMF UE NGAP IDs that can be assigned.
  • GUII globally unique AMF identifiers
  • NSLF configures logical AMF1 and logical AMF 2.
  • NSLF can configure one or more logical AMFs. Taking logical AMF1 and logical AMF 2 as an example, NSLF can use the NG interface address configured in step S801 as logical AMF1 (for example, corresponding IP address 1) Or the NG interface address of logical AMF 2 (for example, corresponding to IP address 2). Optionally, NSLF can also allocate a range of AMF UE NGAP IDs as the range of AMF UE NGAP IDs corresponding to logical AMF1 or logical AMF 2 from the range of AMF UE NGAP IDs that can be allocated.
  • AMF instance 1 and AMF instance 2 configure capacity information, interface address, AMF Set information and NSLF address information.
  • each AMF instance in the AMF Set is configured with capacity information, interface address and AMF Set information.
  • AMF instance 1 and AMF instance 2 can configure the above information by referring to the current technology.
  • AMF instance 1 and AMF instance 2 can also configure the NSLF address information of the AMF Set.
  • the NSLF address information is used to establish the connection between AMF instance 1 (and/or AMF instance 2) and NSLF. Signaling connection.
  • AMF instance 1 sends a registration request message to NSLF.
  • AMF instance 1 enters the working state and first sends a registration AMF instance request message to NSLF according to the NSLF address information of the AMF Set configured in step S803.
  • the request message may include first information, and the first information includes the name or identification of AMF instance 1 .
  • the first information may also include the name or identification of the AMF Set to which AMF instance 1 belongs, the interface address information of AMF instance 1 (such as IP address, transmission protocol and protocol port number), and the capacity information of AMF instance 1. (For example, it supports 1 million registered terminals).
  • NSLF associates logical AMF1 and logical AMF2 with AMF instance 1.
  • NSLF after NSLF receives the registration request message of AMF instance 1, it associates the logical AMF of the AMF Set to AMF instance 1. For example, associate both logical AMF1 and logical AMF2 to AMF instance 1.
  • NSLF can further allocate one or more GUMAIs to each logical AMF as service GUMAIs (Served GUAMIs) of the logical AMF based on the capacity of AMF instance 1.
  • GUMAIs belong to the GUAMI configured in step S801. list. For example, when allocating one Served GUAMI for every 200,000 registered terminals, NSLF can allocate 3 Served GUAMIs for logical AMF1 and 2 Served GUAMIs for logical AMF2; or, NSLF can also allocate 3 Served GUAMIs for logical AMF1 and logical AMF2. GUAMI.
  • NSLF sends a registration response message to AMF instance 1.
  • the response message is used to notify AMF instance 1 that the registration is successful and NSLF has established a connection with AMF instance 1.
  • the RAN can configure the name or address information of the AMF Set.
  • the RAN can configure the name or address information of the AMF Set with reference to the current technology.
  • RAN1 and RAN2 can query the corresponding address information through the domain name server (DNS) and the name of the AMF Set.
  • DNS domain name server
  • the address information of the AMF Set is the IP address and corresponding SCTP port number of logical AMF1 and/or logical AMF2.
  • the specific configuration corresponds to step S801.
  • RAN 1 sends an NG interface establishment request message to NSLF.
  • RAN 1 after RAN 1 starts working, it can send an NG interface establishment request message (NG Setup Request) to NSLF according to the address information queried in step S807.
  • the request message includes the configuration information of RAN 1.
  • the configuration information of RAN 1 includes the name (identity) of RAN1 and a list of tracking areas (TAs) managed by RAN1 itself. Among them, TA is composed of one or more wireless cells.
  • NSLF sends an NG interface establishment response message to RAN 1.
  • NSLF sends an NG interface setup response message (NG Setup Response) to RAN 1.
  • the response message includes second information, and the second information includes the name of the logical AMF and the served GUAMI list.
  • step In step S808 when NSLF receives the NG Setup Request sent by RAN1 at IP address 1 and the corresponding SCTP port, NSLF thinks that RAN1 has established an NG interface connection with logical AMF1, so it carries the second information in the NG Setup Response message.
  • the second information includes the name (identity) of the logical AMF1, the capacity information of the logical AMF1, and the served GUAMI list allocated to the logical AMF1.
  • NSLF sends the configuration information of RAN 1 to AMF instance 1.
  • NSLF notifies each AMF instance associated with logical AMF1 of the information about RAN1 that has successfully established an NG interface connection with logical AMF instance 1. For example, according to step S805, logical AMF1 is associated with AMF instance 1, so NSLF sends a RAN 1 information notification message to AMF instance 1, which carries the name (identity) and TA list of RAN1.
  • S811, RAN 1 and NSLF transmit UE 1 related NGAP messages through the logical AMF 1 address.
  • RAN1 when a UE (such as UE1) accesses RAN1 and performs network registration and other services, RAN1 will send the NGAP message (for example, the message may include third information) related to the UE (such as UE1) to the NSLF (RAN1 Think sent to logical AMF1).
  • the uplink message is an initial uplink message, that is, the uplink message does not include the AMF UE NGAP ID of UE 1
  • NSLF determines that logical AMF 1 is associated with AMF instance 1 according to step S805, assigns the AMF UE NGAP ID to UE 1, and then forwards it to the AMF instance. 1 performs business processing and records the corresponding relationship between the AMF UE NGAP ID of UE 1 and AMF instance 1 as the first mapping relationship.
  • NSLF also records the corresponding relationship between the RAN UE NGAP ID of UE 1 and the link.
  • the corresponding relationship between the RAN UE NGAP ID of UE 1 and the first link of logical AMF 1 is recorded as the second mapping relationship, AMF instance.
  • the downlink message of UE 1 sent by 1 (for example, the message may include the fifth information), NSLF sends it to the NG interface link (i.e. the first link) corresponding to logical AMF 1 according to the recorded second mapping relationship, and finally Passed to RAN 1 serving UE 1.
  • S812, NSLF and AMF instance 1 transmit NGAP messages related to UE 1.
  • the message may include sixth information, and the sixth information includes the temporary identity of the UE (such as UE 1). (temporary mobile station identifier, TMSI).
  • TMSI temporary mobile station identifier
  • the RAN does not assign a RAN UE NGAP ID.
  • NSLF will determine all logical AMFs associated with AMF instance 1, namely logical AMF1 and logical AMF2; then NSLF will determine all RANs connected by logical AMF1 and logical AMF2 to establish NG interfaces, namely RAN1 and RAN2.
  • NSLF sends paging messages to these RANs (including RAN1 and RAN2) through the NG interface link.
  • NSLF will also record the corresponding relationship between the temporary identity of the UE and the AMF instance 1 that initiated the paging message as the third mapping relationship. Subsequently, when the UE (for example, UE 1) sends a paging response message (the message may include the seventh information) to the logical AMF1 through the RAN (for example, RAN 1), the NSLF will use the UE (for example, UE 1) carried in the paging response message. ), and the recorded third mapping relationship, determine to forward the paging response message (the message may include seventh information) to AMF instance 1 for processing.
  • the UE for example, UE 1
  • the NSLF will use the UE (for example, UE 1) carried in the paging response message. ), and the recorded third mapping relationship, determine to forward the paging response message (the message may include seventh information) to AMF instance 1 for processing.
  • NSLF will assign an AMF UE NGAP ID to the UE (for example, UE 1), and record the correspondence between the AMF UE NGAP ID and AMF instance 1. Subsequent NSLF can follow this correspondence, according to the AMF The UE NGAP ID forwards subsequent NGAP messages related to this UE (such as UE 1) directly to AMF instance 1 for processing.
  • RAN 2 sends an NG interface establishment request message to NSLF.
  • S814 NSLF sends an NG interface establishment response message to RAN 2.
  • NSLF sends the configuration information of RAN 2 to AMF instance 1.
  • RAN 2 and NSLF transmit UE 2 related NGAP messages through the logical AMF 2 address.
  • S817, NSLF and AMF instance 2 transmit NGAP messages related to UE 2.
  • steps S813 to S817 may refer to the above steps S808 to S812.
  • RAN2 and logical AMF2 establish an NG interface connection.
  • NGAP messages related to UE 2 connected through RAN2 are handed over to AMF instance 1 for processing.
  • AMF instance 1 For the sake of brevity, no further details will be given here.
  • AMF instance 2 sends a registration request message to NSLF.
  • step S806 For this step, reference may be made to the above-mentioned step S806, and for the sake of simplicity, it will not be described again here.
  • NSLF adjusts the services of logical AMF 2 from AMF instance 1 to AMF instance 2.
  • NSLF receives the registration request message of AMF instance 2, it associates the logical AMF of the AMF Set with AMF instance 2. For example, the logical AMF2 associated with AMF instance 1 is changed to associated with AMF instance 2. Therefore, it is determined that AMF instance 2 provides services for the relevant UE, and the subsequent services of logical AMF 2 are adjusted from AMF instance 1 to AMF instance 2, and AMF instance 2 provides services for UE 2 and processes the services of UE 2. For example, when NSLF receives the fourth information from UE 2, it should have sent the fourth information to AMF instance 1. After the above modification, it will send the fourth information to AMF instance 2, and AMF instance 2 will provide the UE with the fourth information. 2Provide services.
  • NSLF can further allocate one or more GUMAIs to each logical AMF as service GUMAIs (Served GUAMIs) of the logical AMF based on the capacity of AMF instance 2. These allocated GUMAIs belong to the GUAMI configured in step S801. list.
  • NSLF sends a registration response message to AMF instance 2.
  • NSLF sends a response message to AMF instance 2 to notify that the registration is successful.
  • the registration response message can also carry information about all RANs that have established NG interface connections with logical AMF2 (logical AMF associated with AMF instance 2), specifically, including the name and TA of RAN2. list. In this way, an additional piece of information (such as the information shown in S810 and S815) is no longer needed to send the RAN configuration information to the corresponding AMF instance, which reduces signaling overhead.
  • RAN 1 and NSLF transmit UE 1 related NGAP messages through the logical AMF 1 address.
  • NSLF and AMF instance 1 transmit NGAP messages related to UE 1.
  • Steps S821 to S822 are the same as the above-mentioned steps S811 to S812, and will not be described again for the sake of simplicity.
  • S823, RAN 2 and NSLF transmit UE 2 related NGAP messages through the logical AMF 2 address.
  • S824, NSLF and AMF instance 2 transmit NGAP messages related to UE 2.
  • Steps S823 to S824 are the same as the above-mentioned steps S816 to S817, and will not be described again for the sake of simplicity.
  • NSLF determines that AMF instance 1 is unavailable.
  • NSLF network repository function
  • NSLF sends and receives messages A signaling connection failure with AMF instance 1 is detected and AMF instance 1 cannot be contacted, so NSLF can determine that AMF instance 1 is unavailable.
  • NSLF transmits all services of logical AMF 1 to AMF instance 2.
  • NSLF associates both logical AMF1 and logical AMF2 to AMF instance 2.
  • NSLF will record The correspondence between the AMF UE NGAP ID and AMF instance 1 is modified to the correspondence between AMF instance 2;
  • NSLF modifies the correspondence between the recorded temporary identity of the UE and AMF instance 1 into the correspondence between AMF instance 2 and AMF instance 2.
  • all services of logical AMF 1 will be transmitted to AMF instance 2, and AMF instance 2 will provide services for relevant UEs.
  • S828, NSLF and AMF instance 2 transmit NGAP messages related to UE 1.
  • Steps S827 to S828 are similar to the above-mentioned steps S821 to S822, and will not be described again for the sake of brevity.
  • S829, RAN 2 and NSLF transmit UE 2 related NGAP messages through the logical AMF 2 address.
  • S830, NSLF and AMF instance 2 transmit NGAP messages related to UE 2.
  • Steps S829 to S830 are the same as the above-mentioned steps S823 to S824, and will not be described again for the sake of simplicity.
  • the technical solution disclosed in this application associates instance access and mobility management network elements and logical access and mobility management network elements in the same access and mobility management network element set through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • Figure 9 is a third schematic flow chart of the wireless communication method of the present application.
  • NSLF associates one logical AMF of the AMF Set to multiple AMF instances.
  • the first instance access and mobility management network element corresponds to AMF instance 2
  • the second instance access and mobility management network element corresponds to AMF instance 3
  • the first logical access and mobility management network element corresponds to logical AMF 2
  • the first radio access network corresponds to RAN.
  • NSLF configures the NG interface address, AMF Set information and AMF Set resources.
  • NSLF can configure the NG interface address by configuring IP address 1 and IP address 2, and the corresponding SCTP port number as the NG interface.
  • NSLF configures AMF Set information, including the name of the AMF Set, PLMN ID, AMF region, serving area, supported network slices, etc.
  • NSLF configures the resources of the AMF Set, including a list of GUMAI, which includes the range of AMF UE NGAP IDs that can be assigned.
  • NSLF configures logical AMF1 and logical AMF 2.
  • NSLF can configure one or more logical AMFs. Taking logical AMF1 and logical AMF 2 as an example, NSLF can use the NG interface address configured in step S901 as logical AMF1 (for example, corresponding IP address 1) Or the NG interface address of logical AMF 2 (for example, corresponding to IP address 2). Optionally, NSLF can also allocate a range of AMF UE NGAP IDs as the range of AMF UE NGAP IDs corresponding to logical AMF1 or logical AMF 2 from the range of AMF UE NGAP IDs that can be allocated.
  • AMF instance 1 configure capacity information, interface address, AMF Set information and NSLF address information.
  • each AMF instance in the AMF Set is configured with capacity information, interface address and AMF Set information.
  • AMF instance 1, AMF instance 2, and AMF instance 3 can configure the above information by referring to the current technology.
  • AMF Instance 1, AMF instance 2 and AMF instance 3 can also configure the NSLF address information of the AMF Set.
  • the NSLF address information is used to establish a connection between AMF instance 1 (and/or AMF instance 2 and/or AMF instance 3) and NSLF. signaling connection.
  • AMF instance 1 sends a registration request message to NSLF.
  • AMF instance 1 enters the working state and first sends a registration AMF instance request message to NSLF according to the NSLF address information of the AMF Set configured in step S903.
  • the request message carries the name or identification of AMF instance 1.
  • the request message can also include the name or identification of the AMF Set to which AMF instance 1 belongs, the interface address information of AMF instance 1 (such as IP address, transmission protocol and protocol port number), and the capacity information of AMF instance 1 (for example, support 1 million registered terminals).
  • the interface address information of AMF instance 1 such as IP address, transmission protocol and protocol port number
  • the capacity information of AMF instance 1 For example, support 1 million registered terminals.
  • NSLF associates logical AMF1 with AMF instance 1.
  • NSLF receives the registration request message of AMF instance 1, it associates the logical AMF of the AMF Set to AMF instance 1. For example, associate logical AMF1 to AMF instance 1.
  • NSLF can further allocate one or more corresponding GUMAIs to logical AMF1 as service GUMAIs (Served GUAMIs) of logical AMF based on the capacity of AMF instance 1. These allocated GUMAIs belong to the GUAMI list configured in step S901.
  • NSLF sends a registration response message to AMF instance 1.
  • the response message is used to notify AMF instance 1 that the registration is successful.
  • AMF instance 2 sends a registration request message to NSLF.
  • AMF instance 2 enters the working state, and first sends a registration AMF instance request message to NSLF according to the NSLF address information of the AMF Set configured in step S903.
  • the request message may include first information, and the first information includes the name or identification of AMF instance 2.
  • the request message may also include the name or identification of the AMF Set to which AMF instance 2 belongs, the interface address information of AMF instance 2 (such as IP address, transmission protocol and protocol port number), and the capacity information of AMF instance 2 (for example, support 1 million registered terminals).
  • AMF instance 3 sends a registration request message to NSLF.
  • step S908 AMF instance 3 enters the working state and sends a registration AMF instance request message to NSLF.
  • steps S904 and S907. For the sake of brevity, details will not be repeated here.
  • NSLF associates logical AMF 2 with AMF instance 2 and AMF instance 3.
  • NSLF receives the registration request messages of AMF instance 2 and AMF instance 3, it associates the logical AMF2 of the AMF Set to AMF instance 2 and AMF instance 3.
  • NSLF can also allocate one or more GUMAIs to logical AMF2 as Served GUAMIs based on the capacities of AMF instance 2 and AMF instance 3.
  • NSLF determines the capacity of logical AMF2 based on the capacities of AMF instance 2 and AMF instance 3 associated with logical AMF2, that is, the capacity of logical AMF2 is the sum of the capacities of AMF instance 2 and AMF instance 3.
  • NSLF sends a registration response message to AMF instance 2.
  • NSLF sends a registration response message to AMF instance 3.
  • Step S910 and step S911 are similar to step S906, and will not be described again for the sake of simplicity.
  • the RAN can configure the name or address information of the AMF Set.
  • the RAN can configure the name or address information of the AMF Set with reference to the current technology.
  • RAN when configuring the name, can query the corresponding address information through DNS and the name of the AMF Set.
  • the address information of the AMF Set is the IP address of the logical AMF2 and the corresponding SCTP port number.
  • the specific configuration corresponds to step S901.
  • S913 RAN sends an NG interface establishment request message to NSLF.
  • NG Setup Request an NG interface establishment request message
  • the request message includes RAN configuration information.
  • the RAN configuration information includes the name (identity) of the RAN and the list of TAs managed by the RAN itself. Among them, TA is composed of one or more wireless cells.
  • S914 NSLF sends an NG interface establishment response message to the RAN.
  • NSLF sends an NG interface setup response message (NG Setup Response) to the RAN.
  • the response message includes second information.
  • the second information includes the name of the logical AMF and the served GUAMI list.
  • NG Setup Response NG Setup Response
  • the second information includes the name (identification) of logical AMF 2, and the served GUAMI list assigned to logical AMF 2.
  • S915 NSLF sends RAN configuration information to AMF instance 2.
  • S916 NSLF sends RAN configuration information to AMF instance 3.
  • NSLF notifies each AMF instance associated with logical AMF2 (ie, AMF instance 2 and AMF instance 3) of the information of the RAN that successfully establishes an NG interface connection with logical AMF2.
  • NSLF sends a RAN information notification message to AMF instance 2 and AMF instance 3, which carries RAN configuration information.
  • the configuration information includes the name of the RAN and the TA list.
  • S917, RAN and NSLF transmit UE 1 related NGAP messages through logical AMF 2 address.
  • the RAN will send the NGAP message (for example, the message may include third information) related to the UE (such as UE1) to the NSLF (RAN Think sent to logical AMF 2).
  • the uplink message is an initial uplink message, that is, the uplink message does not include the AMF UE NGAP ID of UE 1
  • NSLF determines that logical AMF 2 is associated with AMF instance 2 and AMF instance 3 according to step S909, and allocates the AMF UE NGAP ID to UE 1.
  • an AMF instance such as AMF instance 2 is selected in a load-balanced manner.
  • NSLF forwards the NGAP message related to UE 1 to AMF instance 2 for business processing, and records the corresponding relationship between the AMF UE NGAP ID of UE 1 and AMF instance 2 as the first mapping relationship.
  • NSLF can directly forward the NGAP message related to this UE to AMF instance 2 for processing according to the first mapping relationship and the AMF UE NGAP ID.
  • NSLF also records the corresponding relationship between the RAN UE NGAP ID of UE 1 and the link.
  • the corresponding relationship between the RAN UE NGAP ID of UE 1 and the first link of logical AMF 2 is recorded as the second mapping relationship, AMF instance. 2 sends the downlink message of UE 1 (for example, the message may include the fifth information), NSLF sends it to the NG interface link corresponding to logical AMF 2 according to the recorded RAN UE NGAP ID and link correspondence of UE 1 (i.e. first link), and finally delivered to the RAN serving UE 1.
  • S918, NSLF and AMF instance 2 transmit NGAP messages related to UE 1.
  • the message may include sixth information, and the sixth information may include the temporary identity of the UE (for example, UE 1). (such as TMSI).
  • the RAN does not assign a RAN UE NGAP ID.
  • NSLF will determine all logical AMFs associated with AMF instance 2, that is, logical AMF2; then NSLF will determine all RANs to which logical AMF2 establishes NG interface connections, and finally NSLF will send paging messages to these RANs through NG interface links.
  • NSLF will also record the corresponding relationship between the temporary identity of the UE (such as UE 1) and the AMF instance 2 that initiated the paging message as the third mapping relationship. Subsequently, when the UE (such as UE 1) sends a paging response message to logical AMF2 through the RAN, NSLF will determine the temporary identity of the UE (such as UE 1) carried in the paging response message and the recorded third mapping relationship. Forward the paging response message to AMF instance 2 for processing.
  • NSLF will assign an AMF UE NGAP ID to the UE (for example, UE 1), and record the corresponding relationship between the AMF UE NGAP ID and AMF instance 2. Subsequent NSLF According to this correspondence, the UE-related NGAP message can be directly forwarded to AMF instance 2 for processing according to the AMF UE NGAP ID.
  • S920, NSLF and AMF instance 3 transmit NGAP messages related to UE 2.
  • NSLF sends the NGAP message related to another UE (for example, UE2) to the AMF instance 3 associated with the logical AMF2 for processing, and records the AMF UE NGAP allocated for this UE (for example, UE2) Correspondence between ID and AMF instance 3. Subsequent NSLF can directly forward the NGAP message related to this UE (for example, UE2) to AMF instance 3 for processing according to this corresponding relationship and the AMF UE NGAP ID.
  • Steps S919 and S920 may refer to the above-mentioned steps S917 and S918, and for the sake of simplicity, they will not be described again here.
  • AMF instance 2 sends a deregistration message to NSLF.
  • AMF instance 2 is scheduled to be shut down due to upgrade, maintenance, energy saving, etc.
  • a register AMF instance message is sent to NSLF to instruct AMF instance 2 to stop providing services to relevant UEs.
  • NSLF modifies the capacity of logical AMF 2.
  • NSLF modifies the association between logical AMF and AMF instances. For example, NSLF determines that AMF instance 3 will provide services for UE 1, associates logical AMF2 only with AMF instance 3, and at the same time modifies the capacity of AMF2 to the capacity of AMF instance 3. .
  • NSLF sends configuration update information to RAN.
  • the NSLF sends an AMF Configuration Update message (AMF Configuration Update) to the RAN.
  • the message may include eighth information.
  • the eighth information includes the name of the logical AMF2 and the modified capacity of the logical AMF2.
  • this information may also include an updated GUAMI list serving logical AMF2.
  • the updated GUAMI list is re-determined by NSLF according to the list of GUMAI configured in step S901. For example, one or more are re-selected according to the list including the range of AMF UE NGAP IDs that can be allocated to form the updated GUAMI list. .
  • RAN and NSLF transmit UE 1 related NGAP messages through logical AMF 2 address.
  • RAN will send the NGAP message related to the UE (for example, UE 1) to NSLF (RAN thinks it is sent to logical AMF2).
  • NSLF will use the AMF UE NGAP ID in the NGAP message and the recorded AMF UE NGAP ID.
  • the corresponding relationship with AMF instance 2 determines that this UE (for example, UE 1) is originally served by AMF instance 2.
  • NSLF is only associated with AMF instance 3 according to the logical AMF 2 determined in step S922, so it sends the NGAP message related to this UE (for example, UE 1) to AMF instance 3, and at the same time modifies the record,
  • the AMF UE NGAP ID of this UE corresponds to AMF instance 3.
  • Subsequent NSLF can directly forward the NGAP messages related to this UE (for example, UE 1) to the AMF instance according to this correspondence and the AMF UE NGAP ID. 3 processing.
  • S925, NSLF and AMF instance 3 transmit NGAP messages related to UE 1.
  • AMF instance 3 receives the NGAP message of this UE (such as UE 1), because the context information of this UE (such as UE 1) is not stored locally, it is based on the AMF UE NGAP ID or the UE's temporary identity TMSI.
  • UE Context the context of this UE (UE Context) from the shared database of AMF Set, and then you can process the business of this UE (such as UE 1) normally.
  • the context of this UE in the shared database of the AMF Set is saved by the AMF instance 2 that originally provided services for the UE (such as UE 1).
  • AMF instance 3 initiates a paging message for a certain UE (for example, UE 1)
  • UE for example, UE 1
  • the technical solution disclosed in this application associates instance access and mobility management network elements and logical access and mobility management network elements in the same access and mobility management network element set through network function set logical network elements.
  • the wireless access network can be shielded from status changes of instance access and mobility management network elements associated with logical access and mobility management network elements, which can simplify interface configuration and reduce signaling overhead.
  • the method implemented by the communication device can also be implemented by components (such as chips or circuits) that can be configured inside the communication device.
  • terminal device in this application as a UE as an example to explain each method.
  • the UE can also be replaced by other terminal devices, which is not covered in this application. limited.
  • each network element includes a corresponding hardware structure and/or software module to perform each function.
  • each network element includes a corresponding hardware structure and/or software module to perform each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
  • the wireless communication device provided by the embodiment of the present application will be described in detail below with reference to FIG. 10 and FIG. 11 . It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, for content that is not described in detail, please refer to the above method embodiments. For the sake of brevity, some content will not be described again.
  • Embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. middle.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module according to each function.
  • FIG. 10 is a schematic block diagram of a wireless communication device 1000 provided by this application.
  • Any network element involved in any one of the above methods 700 to 900 such as network function set logical network element, mobility management network element, wireless access network, etc., can be implemented by the wireless communication device shown in Figure 10 .
  • the wireless communication device 1000 may be a physical device, a component of the physical device (eg, an integrated circuit, a chip, etc.), or a functional module in the physical device.
  • the wireless communication device 1000 includes: one or more processors 1010.
  • the processor 1010 may store execution instructions for executing the methods of embodiments of the present application.
  • the processor 1010 can call an interface to implement the receiving and sending functions.
  • the interface may be a logical interface or a physical interface, which is not limited.
  • the interface may be a transceiver circuit or an interface circuit.
  • the transceiver circuits or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit or interface circuit can be used for reading and writing code/data, or the above-mentioned transceiver circuit or interface circuit can be used for signal transmission or transfer.
  • the interface can be implemented via transceivers.
  • the wireless communication device 1000 may also include a transceiver 1030.
  • the transceiver 1030 may be called a transceiver unit, a transceiver, a transceiver circuit, a transceiver, etc., and is used to implement transceiver functions.
  • the wireless communication device 1000 may also include a memory 1020.
  • the embodiment of the present application does not specifically limit the specific deployment location of the memory 1020.
  • the memory may be integrated in the processor or independent of the processor.
  • the wireless communication device 1000 only needs to have a processing function, and the memory can be deployed in other locations (eg, a cloud system).
  • the processor 1010, the memory 1020 and the transceiver 1030 communicate with each other through internal connection paths to transmit control and/or data signals.
  • the wireless communication device 1000 may also include other devices, such as input devices, output devices, batteries, and the like.
  • the memory 1020 can store execution instructions for executing the methods of the embodiments of the present application.
  • the processor 1010 can execute instructions stored in the memory 1020 and combine with other hardware (such as the transceiver 1030) to complete the steps of the method shown below.
  • other hardware such as the transceiver 1030
  • the methods disclosed in the embodiments of this application can be applied in the processor 1010 or implemented by the processor 1010 .
  • the processor 1010 may be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (Application Specific Integrated Circuit). specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • FPGA off-the-shelf programmable gate array
  • Each method, step and logical block diagram disclosed in the embodiment of this application can be implemented or executed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc. that are mature in this field. in the storage medium.
  • the storage medium is located in the memory, and the processor reads the instructions in the memory and completes the steps of the above method in combination with its hardware.
  • memory 1020 may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can be 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 EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory RAM, which acts as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • Figure 11 is a schematic block diagram of a wireless communication device 1100 provided by this application.
  • the specific form of the wireless communication device 1100 may be a general computer device or a chip in a general computer device, which is not limited in the embodiments of the present application.
  • the wireless communication device includes a processing unit 1110 and a transceiver unit 1120.
  • the wireless communication device 1100 can be any network element involved in this application, and can implement the functions that the network element can implement. It should be understood that the wireless communication device 1100 may be a physical device, a component of the physical device (eg, an integrated circuit, a chip, etc.), or a functional module in the physical device.
  • the wireless communication device 1100 may be the network function set logic device in the above method embodiment, or may be a chip used to implement the functions of the network function set logic device in the above method embodiment.
  • the transceiver unit 1120 is configured to receive first information.
  • the first information includes the identification of at least one instance access and mobility management network element.
  • the at least one instance access and mobility management network element includes the first instance access and mobility management network element.
  • the processing unit 1110 is configured to associate the first instance access and mobility management network element with the first logical access and mobility management network element, the first instance access and mobility management network element and
  • the first logical access and mobility management network element belongs to the first set of access and mobility management network elements.
  • the transceiver unit 1120 is also configured to send second information to the first radio access network, which is connected to the first logical access and mobility management network element.
  • the second information includes the following information. At least one of: the identification of the first logical access and mobility management network element; the capacity information of the first logical access and mobility management network element; the globally unique service for the first logical access and mobility management network element. Access and mobility management network element identifier GUAMI list.
  • the transceiver unit 1120 is also configured to receive configuration information from the first wireless access network through the first logical access and mobility management network element, where the configuration information includes the name of the first wireless access network and the name of the first wireless access network.
  • the network function set logical network element sends the configuration information to the first instance access and mobility management network element associated with the first logical access and mobility management network element.
  • the transceiver unit 1120 is also configured to receive the third information through the first logical access and mobility management network element, and the third information comes from the first terminal device; the processing unit 1110 is also configured to determine the first instance access The mobility management network element processes services for the first terminal device; the transceiver unit 1120 is also used to send the third information to the first instance access and mobility management network element.
  • the transceiver unit 1120 is also configured to receive the fourth information through the first logical access and mobility management network element, and the fourth information comes from the first terminal device; the processing unit 1110 is also configured to determine the second instance access and mobility management network elements.
  • the second instance access and mobility management network elements are the instance access and mobility management network elements available in the first access and mobility management network element set.
  • the second instance access and mobility management network elements are The mobility management network element is associated with the first logical access and mobility management network element; the transceiver unit 1120 is also configured to send fourth information to the second instance access and mobility management network element.
  • the above-mentioned third information is initial uplink information.
  • the processing unit 1110 is also configured to determine the next-generation application protocol interface identifier AMF of the terminal device corresponding to the access and mobility management network element side for the first terminal device based on the initial uplink information.
  • UE NGAP ID determines the first mapping relationship, which is the mapping relationship between the AMF UE NGAP ID and the first instance access and mobility management network element.
  • the third information includes the AMF UE NGAP ID
  • the transceiver unit 1120 is also configured to send the third information to the first instance access and mobility management network element according to the first mapping relationship.
  • the transceiver unit 1120 is also used to obtain the terminal device Next Generation Application Protocol Interface Identifier RAN UE NGAP ID corresponding to the wireless access network side determined by the first wireless access network for the first terminal device; the processing unit 1110 is also configured to Used to determine the second mapping relationship.
  • the second mapping relationship is the mapping relationship between the RAN UE NGAP ID and the first link of the first logical access and mobility management network element.
  • the transceiver unit 1120 is also configured to receive the fifth information from the first instance access and mobility management network element, where the fifth information includes the RAN UE NGAP ID; the transceiver unit 1120 is also configured to receive the fifth information from the first instance access and mobility management network element according to the second mapping relationship. , sending the fifth information to the first wireless access network through the first link of the first logical access and mobility management network element.
  • the first wireless access network is a wireless access network serving the first terminal device.
  • the transceiver unit 1120 is also configured to receive sixth information from the first instance access and mobility management network element.
  • the sixth information is downlink paging information, including the identification of the first terminal device; the processing unit 1110, It is also used to determine at least one wireless access network connected to the first logical access and mobility management network element.
  • the at least one wireless access network includes the first wireless access network; the transceiver unit 1120 is also used to send a message to the first wireless access network.
  • the wireless access network sends sixth information.
  • the processing unit 1110 is also configured to determine a third mapping relationship, which is the mapping relationship between the identity of the first terminal device and the first instance access and mobility management network element; the transceiver unit 1120 is also configured to For receiving the seventh information from the first radio access network, the seventh information is the paging response information of the sixth information, and the seventh information includes the identification of the first terminal device; the transceiver unit 1120 is also configured to according to the third mapping relationship , sending the seventh information to the first instance access and mobility management network element.
  • a third mapping relationship which is the mapping relationship between the identity of the first terminal device and the first instance access and mobility management network element
  • the transceiver unit 1120 is also configured to For receiving the seventh information from the first radio access network, the seventh information is the paging response information of the sixth information, and the seventh information includes the identification of the first terminal device; the transceiver unit 1120 is also configured to according to the third mapping relationship , sending the seventh information to the first instance access and mobility management network element.
  • the processing unit 1110 is also configured to determine that the instance access and mobility management network element associated with the first logical access and mobility management network element has changed; the transceiver unit 1120 is also configured to send the first wireless
  • the eighth information includes the identification of the first logical access and mobility management network element.
  • the eighth information also includes the following information: At least one of: the updated capacity information of the first logical access and mobility management network element; the updated GUAMI list serving the first logical access and mobility management network element.
  • the above-mentioned first information also includes one or more of the following information: the identification of the first access and mobility management network element set; the interface address information of the first instance access and mobility management network element; Capacity information of an instance access and mobility management network element.
  • the transceiver unit 1120 in the wireless communication device 1100 can be implemented through a communication interface (such as a transceiver or an input/output interface), and the processing in the wireless communication device 1100
  • the unit 1110 may be implemented by at least one processor, which may correspond to the processor 1010 shown in FIG. 10 , for example.
  • the wireless communication device 1100 may also include a storage unit, which may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • a storage unit which may be used to store instructions or data
  • the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • the wireless communication device 1100 may be the first example access and mobility management network element in the above method embodiment, or may be used to implement the first example in the above method embodiment.
  • the processing unit 1110 is used to determine the first information.
  • the first information includes the identifier of the first instance access and mobility management network element.
  • the identifier of the first instance access and mobility management network element is used for the network function set logic.
  • the network element associates the first instance access and mobility management network element with the first logical access and mobility management network element, and the first instance access and mobility management network element and the first logical access and mobility management network element
  • the network element belongs to the first access and mobility management network element set; the transceiver unit 1120 is used to send the first information.
  • the transceiver unit 1120 is configured to receive configuration information of the first wireless access network.
  • the first wireless access network is connected to the first logical access and mobility management network element.
  • the configuration information includes the first wireless access network.
  • the transceiver unit 1120 is used to receive third information, and the third information comes from the first terminal device.
  • the transceiver unit 1120 is configured to send fifth information.
  • the fifth information includes the terminal device next generation application protocol interface identification RAN UE NGAP corresponding to the radio access network side determined by the first radio access network for the first terminal device.
  • ID, RAN UE NGAP ID is used by the network function set logical network element to determine the second mapping relationship.
  • the second mapping relationship is the mapping relationship between the RAN UE NGAP ID and the first link of the first logical access and mobility management network element.
  • the transceiver unit 1120 is configured to send sixth information.
  • the sixth information is downlink paging information.
  • the sixth information includes the identity of the first terminal device.
  • the identity of the first terminal device is used to determine the network function set logical network element.
  • the first radio access network is connected to the first logical access and mobility management network element, and the first logical access and mobility management network element is connected to the first instance access and mobility management network. Meta-related.
  • the transceiver unit 1120 is configured to receive seventh information, where the seventh information is the paging response information of the sixth information, and the seventh information includes the identification of the first terminal device.
  • the above-mentioned first information also includes one or more of the following information: the identification of the first access and mobility management network element set; the interface address information of the first instance access and mobility management network element; Capacity information of an instance access and mobility management network element.
  • the transceiver unit 1120 in the wireless communication device 1100 can be implemented through a communication interface (such as a transceiver or an input/output interface).
  • a communication interface such as a transceiver or an input/output interface.
  • the processing unit 1110 in the wireless communication device 1100 may be implemented by at least one processor, for example, may correspond to the processor 1010 shown in FIG. 10 .
  • the wireless communication device 1100 may also include a storage unit, which may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • a storage unit which may be used to store instructions or data
  • the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • the device 1100 can also be used to implement the functions of network elements such as RAN in the above method embodiments, where the transceiver unit 1120 can be used to implement operations related to receiving and sending, and the processing unit 1110 can be used to implement operations other than receiving and transmitting.
  • operations other than sending please refer to the description in the above method embodiment for details, and will not be listed here one by one.
  • the wireless communication device 1100 is presented in the form of a functional module.
  • Module here may refer to an application specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above functions.
  • ASIC application specific integrated circuit
  • the device 1100 may take the form shown in FIG. 11 .
  • the processing unit 1110 may be implemented by the processor 1010 shown in FIG. 10 .
  • the computer device shown in FIG. 10 includes a memory 1020
  • the processing unit 1110 may be implemented by the processor 1010 and the memory 1020.
  • the transceiver unit 1120 may be implemented by the transceiver 1030 shown in FIG.
  • the transceiver 1030 includes a receiving function and a transmitting function.
  • the processor is implemented by executing the computer program stored in the memory.
  • the memory may be a storage unit within the chip, such as a register, cache, etc.
  • the storage unit may also be a storage unit located outside the chip within the computer device, as shown in Figure 10
  • the memory 1020 or it may be a storage unit deployed in other systems or devices, is not within the computer device.
  • Computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, tapes, etc.), optical disks (e.g., compact discs (CD), digital versatile discs (DVD)) etc.), smart cards and flash memory devices (e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • magnetic storage devices e.g., hard disks, floppy disks, tapes, etc.
  • optical disks e.g., compact discs (CD), digital versatile discs (DVD)
  • smart cards and flash memory devices e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute the steps shown in Figures 7 to 9. The method of any one of the embodiments is shown.
  • the present application also provides a computer-readable medium.
  • the computer-readable medium stores program code.
  • the program code When the program code is run on a computer, it causes the computer to execute the steps shown in Figures 7 to 9. The method of any one of the embodiments is shown.
  • the present application also provides a system, which includes the aforementioned device or equipment.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • a component may be, but is not limited to, a process, a processor, an object, an executable file, a thread of execution, a program and/or a computer running on a processor.
  • applications running on the computing device and the computing device may be components.
  • One or more components can reside in a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. Additionally, these components can execute from various computer-readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component, a local system, a distributed system, and/or a network, such as the Internet, which interacts with other systems via signals) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component, a local system, a distributed system, and/or a network, such as the Internet, which interacts with other systems via signals
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the unit Division is only a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional 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 existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé et un dispositif de communication sans fil. Le procédé comprend les étapes suivantes : un élément de réseau logique d'ensemble de fonctions de réseau reçoit des premières informations, les premières informations comprenant un identifiant d'au moins un élément de réseau de gestion d'accès et de mobilité d'instance et le ou les éléments de réseau de gestion d'accès et de mobilité d'instance comprenant un premier élément de réseau de gestion d'accès et de mobilité d'instance ; l'élément de réseau logique d'ensemble de fonctions de réseau associe le premier élément de réseau de gestion d'accès et de mobilité d'instance à un premier élément de réseau de gestion d'accès logique et de mobilité, le premier élément de réseau de gestion d'accès et de mobilité d'instance et le premier élément de réseau de gestion d'accès logique et de mobilité appartenant à un premier ensemble d'éléments de réseau de gestion d'accès et de mobilité. La solution technique divulguée dans la présente demande peut protéger un changement d'état de l'élément de réseau de gestion d'accès et de mobilité d'instance associé à l'élément de réseau de gestion d'accès logique et de mobilité dans un réseau d'accès radio, peut simplifier la configuration d'interface et peut réduire le surdébit de signalisation.
PCT/CN2023/097706 2022-07-30 2023-06-01 Procédé, dispositif et système de communication sans fil WO2024027320A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1956379A (zh) * 2005-10-28 2007-05-02 中兴通讯股份有限公司 Nass中定位用户接入授权功能实体的方法
US20080275973A1 (en) * 2007-05-03 2008-11-06 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic cli mapping for clustered software entities
WO2020224618A1 (fr) * 2019-05-07 2020-11-12 华为技术有限公司 Procédé d'adressage, dispositif et système de communication
CN113259875A (zh) * 2021-05-11 2021-08-13 中国联合网络通信集团有限公司 Cpnf与amf通信的方法及网络功能储存库功能实体
CN113747373A (zh) * 2020-05-28 2021-12-03 阿里巴巴集团控股有限公司 消息处理系统、装置和方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1956379A (zh) * 2005-10-28 2007-05-02 中兴通讯股份有限公司 Nass中定位用户接入授权功能实体的方法
US20080275973A1 (en) * 2007-05-03 2008-11-06 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic cli mapping for clustered software entities
WO2020224618A1 (fr) * 2019-05-07 2020-11-12 华为技术有限公司 Procédé d'adressage, dispositif et système de communication
CN113747373A (zh) * 2020-05-28 2021-12-03 阿里巴巴集团控股有限公司 消息处理系统、装置和方法
CN113259875A (zh) * 2021-05-11 2021-08-13 中国联合网络通信集团有限公司 Cpnf与amf通信的方法及网络功能储存库功能实体

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