Terminal identification method, terminal, access network function and storage medium

Abstract

The present disclosure relates to a terminal identification method, which is applied to a first terminal and comprises: sending first terminal identification information to a first wireless distributed unit function, wherein the first terminal identification information comprises indication information of a first wireless centralized unit control function and indication information of a first terminal, and the first terminal identification information is used for the first wireless distributed unit function to determine a first wireless centralized unit control function serving the first terminal.

Description

Terminal identification method, terminal, access network function and storage medium Cross-reference to related applications

[0001] The present disclosure incorporates by reference in its entirety the Chinese Patent Application No. 2024107319204 entitled "Terminal identification method, terminal, access network function and storage medium" filed on June 06, 2024, which is incorporated by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the field of communication technology, and in particular, to a terminal identification method, a terminal, an access network function and a storage medium. BACKGROUND

[0003] After the service of the Radio Access Network (RAN), due to the change of the Radio Access Network Network Function (RAN NF) and the interaction mode of the RAN NF, the RAN User Equipment (UE) identification method in the related art cannot meet the interaction requirements of the RAN NF. There is an urgent need for a UE identification method that can meet the interaction requirements of the RAN NF. SUMMARY

[0004] Therefore, it is necessary to provide a terminal identification method, a terminal, an access network function and a storage medium capable of meeting the interaction requirements of the RAN NF.

[0005] In a first aspect, the present disclosure provides a terminal identification method applied to a first terminal, the method comprising:

[0006] sending first terminal identification information to a first wireless distributed unit function;

[0007] The first terminal identification information includes indication information of a first wireless centralized unit control function and indication information of the first terminal, and the first terminal identification information is used by the first wireless distributed unit function to determine the first wireless centralized unit control function serving the first terminal.

[0008] In a second aspect, the present disclosure provides a terminal identification method applied to a first access network function, the method comprising:

[0009] generating first terminal identification information for a first terminal;

[0010] The first terminal identification information includes indication information of the first access network function and indication information of the first terminal.

[0011] In a third aspect, the present disclosure provides a terminal identification method applied to a second access network function, the method comprising:

[0012] receiving first terminal identification information sent by a first access network function, the first terminal identification information comprising: indication information of the first access network function, and indication information of a first terminal;

[0013] wherein the first terminal identification information is used to identify first terminal resources, and the first terminal resources comprise: terminal context information, and / or terminal bearer information.

[0014] In a fourth aspect, the present disclosure further provides a first terminal comprising: a memory, a transceiver, and a processor.

[0015] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0016] sending first terminal identification information to a first radio distributed unit function;

[0017] wherein the first terminal identification information comprises: indication information of a first radio centralized unit control function, and indication information of the first terminal, and the first terminal identification information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

[0018] In a fifth aspect, the present disclosure further provides a first access network function comprising: a memory, a transceiver, and a processor.

[0019] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0020] generating first terminal identification information for a first terminal;

[0021] wherein the first terminal identification information comprises: indication information of the first access network function, and indication information of the first terminal, and the first terminal identification information is used to identify first terminal resources, and the first terminal resources comprise: terminal context information, and / or terminal bearer information.

[0022] In a sixth aspect, the present disclosure further provides a second access network function comprising: a memory, a transceiver, and a processor.

[0023] The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0024] The receiving module is configured to receive first terminal identification information sent by a first access network function, the first terminal identification information including indication information of the first access network function and indication information of a first terminal.

[0025] The first terminal identification information is configured to identify first terminal resources, the first terminal resources including terminal context information and / or terminal bearer information.

[0026] In a seventh aspect, the present disclosure provides a first terminal, including:

[0027] The sending module is configured to send first terminal identification information to a first radio distributed unit function.

[0028] The first terminal identification information includes indication information of a first radio centralized unit control function and indication information of the first terminal, and the first terminal identification information is configured to enable the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

[0029] In an eighth aspect, the present disclosure provides a first access network function, including:

[0030] The generating module is configured to generate first terminal identification information for a first terminal.

[0031] The first terminal identification information includes indication information of the first access network function and indication information of the first terminal.

[0032] In a ninth aspect, the present disclosure provides a second access network function, including:

[0033] The receiving module is configured to receive first terminal identification information sent by a first access network function, the first terminal identification information including indication information of the first access network function and indication information of a first terminal.

[0034] The first terminal identification information is configured to identify first terminal resources, the first terminal resources including terminal context information and / or terminal bearer information.

[0035] In a tenth aspect, the present disclosure provides a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement any one of the following:

[0036] The method of the first aspect or any embodiment thereof;

[0037] The method according to the second aspect or any one of the embodiments thereof;

[0038] The method according to the third aspect or any one of the embodiments thereof.

[0039] Eleventh aspect, the disclosure also provides a computer program product, the computer program product includes a computer program, the computer program is executed by a processor to realize any one of the following:

[0040] The method according to the first aspect or any one of the embodiments thereof;

[0041] The method according to the second aspect or any one of the embodiments thereof;

[0042] The method according to the third aspect or any one of the embodiments thereof.

[0043] The terminal identification method, the first access network function can generate first terminal identification information for the first terminal, and the first terminal identification information is used to identify the first terminal resource, the first terminal resource includes: terminal context information, and / or, terminal bearer information, wherein the first terminal identification information includes: the indication information of the first access network function, and the indication information of the first terminal. Since the first terminal identification information includes the indication information of the first access network function, the terminal can be uniquely identified in the RAN, so that the terminal identification method can meet the interaction requirements between the access network functions after the RAN is serviced.

[0044] The above description is only a summary of the technical solutions of the disclosure, in order to enable the technical means of the disclosure to be more clearly understood, and to be implemented according to the content of the specification, and in order to enable the above and other purposes, characteristics and advantages of the disclosure to be more obvious and easy to understand, the following specific embodiments of the disclosure are described. BRIEF DESCRIPTION OF DRAWINGS

[0045] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the embodiments. The accompanying drawings are intended to only illustrate embodiments and are not considered limiting of the disclosure. Moreover, like reference numerals denote like parts throughout the several views in the drawings. In the drawings:

[0046] Fig. 1 is a schematic diagram of the architecture of a RAN and a core network before the RAN side adopts a service-oriented architecture;

[0047] Fig. 2 is a schematic diagram of the architecture of a RAN and a core network after the RAN side adopts another service-oriented architecture;

[0048] Fig. 3 is a schematic diagram of the architecture of a RAN and a core network after the RAN side adopts still another service-oriented architecture;

[0049] Figure 4 is a schematic diagram of a network architecture after service;

[0050] Figure 5 is a schematic diagram of a terminal identification method;

[0051] Figure 6 is a schematic diagram of terminal identification information generated by an RCCF;

[0052] Figure 7 is a schematic diagram of a terminal identification method;

[0053] Figure 8 is a schematic diagram of a terminal identification method;

[0054] Figure 9 is a schematic diagram of a terminal identification method;

[0055] Figure 10 is a schematic diagram of a terminal identification method;

[0056] Figure 11 is a schematic diagram of terminal identification information generated by an RDUF;

[0057] Figure 12 is a schematic diagram of terminal identification information generated by another RDUF;

[0058] Figure 13 is a schematic diagram of a terminal identification method;

[0059] Figure 14 is a schematic diagram of a structure of a communication network element provided by an embodiment;

[0060] Figure 15 is a block diagram of a structure of a first terminal;

[0061] Figure 16 is a block diagram of a structure of a first access network function;

[0062] Figure 17 is a block diagram of a structure of a second access network function. DETAILED DESCRIPTION

[0063] Embodiments of the technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present disclosure, and therefore only serve as examples, and cannot limit the protection scope of the present disclosure.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "include" and "have" and any variations thereof in the specification and claims of the present disclosure and the above description of drawings are intended to cover non-exclusive inclusion.

[0065] In the description of the embodiments of the disclosure, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0066] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0067] In the description of the embodiments of the disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0068] Figure 1 is a schematic diagram of the architecture of RAN and core network before the RAN side adopts a service-oriented architecture. As shown in Figure 1, before the RAN side adopts a service-oriented architecture, the RAN can only communicate with the core network side through the interface between the RAN and the AMF. For example, communication can be performed through the interface between the centralized unit control plane (CU-CP) in the RAN and the AMF.

[0069] After the RAN side adopts a service-oriented architecture, the related art proposes the architecture as shown in Figures 2 and 3:

[0070] Figure 2 is a schematic diagram of the architecture of RAN and core network after the RAN side adopts another service-oriented architecture. As shown in Figure 2, NF1, NF2, NF3, NF4, NF5 and NF6 are all network functions (NFs) in the core network. In this architecture, the RAN and the plurality of NFs of the core network have a direct service interface, and direct communication with each other can be achieved.

[0071] Figure 3 is a schematic diagram of the architecture of the RAN and the core network after the RAN side also adopts the service-oriented architecture. As shown in Figure 3, NF1, NF2, NF3, NF4, NF5, and NF6 are NFs in the core network, and NF7, NF8, NF9, and NF10 are NFs in the RAN. In this architecture, all the NFs on the RAN side and all the NFs on the core network side have direct service-oriented interfaces and can directly communicate with each other.

[0072] The identities used by the new radio (NR) currently connected to the 5G core network (5GC) can include, but are not limited to, the following examples:

[0073] (1) In order to be scheduled at the cell level, the identities used can include:

[0074] C-RNTI (Cell Radio Network Temporary Identifier): used as an identifier for a radio resource control (RRC) connection and a unique user equipment (UE) identifier for scheduling.

[0075] CI-RNTI (Cancellation Indicator Radio Network Temporary Identifier): an identifier used to cancel uplink.

[0076] CS-RNTI (Configured Scheduling Radio Network Temporary Identifier): a unique UE identifier used for semi-persistent scheduling in downlink or configured grant in uplink.

[0077] INT-RNTI (Interruption Radio Network Temporary Identifier): an identifier for pre-emption in downlink.

[0078] MCS-C-RNTI (Modulation and Coding Scheme Cell Radio Network Temporary Identifier): A unique UE identity for indicating the optional Modulation and Coding Scheme (MCS) table for Physical Downlink Shared Channel (PDSCH) and Physical Uplink Shared Channel (PUSCH).

[0079] P-RNTI (Paging Radio Network Temporary Identifier): An identity for paging in downlink and system information change notification.

[0080] SI-RNTI (System Information Radio Network Temporary Identifier): An identity for broadcasting system information in downlink.

[0081] SP-CSI-RNTI (Semi-Permanent CSI Radio Network Temporary Identifier): A unique UE identity for semi-persistent Channel State Information (CSI) reporting on PUSCH.

[0082] (2) For power control and slot format control, the following identities are used:

[0083] SFI-RNTI (Slot Format Indicator Radio Network Temporary Identifier): An identity for slot format.

[0084] TPC-PUCCH-RNTI (Transmit Power Control Physical Uplink Control Channel Radio Network Temporary Identifier): A unique UE identity used for controlling the power of Physical Uplink Control Channel (PUCCH).

[0085] TPC-PUSCH-RNTI (Transmit Power Control Physical Uplink Shared Channel Radio Network Temporary Identifier): A unique UE identity used for controlling the power of PUSCH.

[0086] TPC-SRS-RNTI (Transmit Power Control Sounding Reference Signal Radio Network Temporary Identifier): A unique UE identity used for controlling the function of Sounding Reference Signal (SRS).

[0087] (3) In the random access procedure, the following identities are used:

[0088] RA-RNTI (Random Access Radio Network Temporary Identifier): An identity of the random access response in the downlink.

[0089] Temporary C-RNTI (Temporary Cell Radio Network Temporary Identifier): A UE identity temporarily used for scheduling in the random access procedure.

[0090] Random value for competition resolution: A UE identity temporarily used for the purpose of competition resolution in the random access procedure.

[0091] (4) For NR connected to 5GC, the following UE identities are used at NG-RAN level:

[0092] I-RNTI (Inactive Radio Network Temporary Identifier): Identification of the UE context in RRC_INACTIVE.

[0093] (5) The following identities are used for the purpose of UE power saving during DRX:

[0094] PS-RNTI (Power Saving Radio Network Temporary Identifier): Used to determine whether the UE needs to monitor PDCCH at the next occurrence of the on-duration time of connected mode DRX.

[0095] After the RAN is serviced, due to the change of the RAN function (RAN NF) and the interaction mode of the RAN NF, the RAN UE identification method in the related art cannot meet the interaction requirements of the RAN NF. There is an urgent need for a UE identification method that can meet the interaction requirements of the RAN NF.

[0096] In order to solve the above problems, a terminal identification method is provided in the embodiments of the present disclosure. A first access network function can generate first terminal identification information for a first terminal, and can configure the first terminal identification information to identify a first terminal resource. The first terminal resource includes: terminal context information, and / or terminal bearer information. The first terminal identification information includes: indication information of the first access network function, and indication information of the first terminal. Since the first terminal identification information includes the indication information of the first access network function, the terminal can be uniquely identified in the RAN. Therefore, the terminal identification method can meet the interaction requirements between access network functions after the RAN is serviced.

[0097] As shown in FIG. 4, the architecture includes a plurality of CN network functions (CN NFs) in a core network (CN), and a plurality of service network functions (NFs) in an access network (RAN). For example, a radio connectivity control function (RCCF) and a radio session management function (RSMF), etc. The number of RCCFs in the RAN can be one or more, and the one RCCF shown in FIG. 4 is only an example. The RCCF is responsible for access and connection related functions. The service-based network architecture shown in FIG. 4 can further include a radio remote user function (RRUF), a radio distributed user function (RDUF), and a radio control user function (RCUF), as shown in FIG. 4. The number of RRUFs, RDUFs, and RCUFs can be one or more, and the two RRUFs, one RCUF, and two RDUFs shown in FIG. 4 are only an example. The F1 interface is the interface between the RCCF and the RDUF, the E1 interface is the interface between the RCCF and the RCUF, and the Xn interface is the interface between the RCCFs.

[0098] In the embodiments of the present disclosure, the first access network function can include a first radio centralized unit control function, or a second radio distributed unit function.

[0099] In the embodiments of the present disclosure, the second access network function can include any one of the following:

[0100] The first radio centralized unit control function, the second radio distributed unit function, and the radio centralized unit user plane function.

[0101] In some embodiments, the radio centralized unit control function (such as the first radio centralized unit control function described above) can be one of the RCCFs in the architecture shown in FIG. 4, or the radio centralized unit control function can be a centralized unit control function in the access network in other architectures, which can implement the processes performed by the first radio centralized unit control function described above.

[0102] In some embodiments, the second radio centralized unit control function involved in the present disclosure can be a different first radio centralized unit control function from the first radio centralized unit control function described above.

[0103] In some embodiments, the wireless distributed unit function (such as the second wireless distributed unit function) can be one RDUF in the architecture as shown in FIG. 4, or the wireless distributed unit function can be one distributed unit function in an access network in other architectures, which can implement the various processes performed by the second wireless centralized unit control function described above in the embodiments of the present disclosure.

[0104] In the embodiments of the present disclosure, the first wireless distributed unit function, the second wireless distributed unit function, and the third wireless distributed unit function can be the same wireless distributed unit function, or can be different wireless distributed unit functions.

[0105] In some embodiments, the wireless centralized unit user plane function can be one RCUF in the architecture as shown in FIG. 4, or the wireless centralized unit user plane function can be a user plane function of one distributed unit in an access network in other architectures, which can implement the various processes performed by the wireless centralized unit user plane function described above in the embodiments of the present disclosure.

[0106] In the embodiments of the present disclosure, a terminal identification method is provided, applied to a first terminal, and the method comprises: the first terminal sending first terminal identification information to a first wireless distributed unit function.

[0107] In the embodiments of the present disclosure, a terminal identification method is provided, applied to a first terminal, and the method comprises: the first terminal sending first terminal identification information to a first wireless distributed unit function.

[0108] In some embodiments, the first terminal identification information is used by the first wireless distributed unit function to determine the first wireless centralized unit control function serving the first terminal.

[0109] In some embodiments, the first terminal identification information is carried in an RRC setup request message. That is, the first terminal sends an RRC setup request message to the first wireless distributed unit function, and the RRC setup request message carries the first terminal identification information described above.

[0110] In some embodiments, the first terminal can also receive the first terminal identification information sent by the third wireless distributed unit function.

[0111] In some embodiments, the first terminal can receive an RRC setup message sent by the third wireless distributed unit function, and the RRC setup message carries the first terminal identification information described above.

[0112] The terminal identification method can identify the first terminal through the first terminal identification information, so that after the first terminal identification information is sent by the first terminal to the first radio distributed unit function, the first terminal identification information can be used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

[0113] In the embodiments of the present disclosure, as shown in FIG. 5, a flowchart of a terminal identification method is provided, which can include but is not limited to the following steps:

[0114] 501. The first access network function generates first terminal identification information for the first terminal.

[0115] The first access network function includes the first radio centralized unit control function or the second radio distributed unit function.

[0116] For example, the first access network function can be the RDUF or the RCCF in the architecture shown in FIG. 4.

[0117] The first terminal identification information includes indication information of the first access network function and indication information of the first terminal.

[0118] In some embodiments, the first terminal identification information includes indication information of the first radio centralized unit control function and indication information of the first terminal. The indication information of the first terminal can be an identifier, an index, etc. that can uniquely identify the first terminal.

[0119] In some embodiments, the first terminal identification information includes indication information of the second radio distributed unit function and indication information of the first terminal.

[0120] 502. The first access network function sends the first terminal identification information to the second access network function.

[0121] Correspondingly, the second access network function receives the first terminal identification information sent by the first access network function.

[0122] The second access network function can be any one of the RDUF, the RCCF and the RCUF.

[0123] The terminal context information included in the first terminal resource is the context information of the first terminal, and the terminal bearer information is the bearer information of the first terminal.

[0124] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the first terminal identifier information is carried in a downlink RRC message. That is, the first access network function sends a downlink RRC message to the second access network function, and the first terminal identifier information is included in the downlink RRC message.

[0125] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the second radio distributed unit function can receive the first terminal identifier information sent by the first terminal and send the first terminal identifier information to the first radio centralized unit control function.

[0126] In some embodiments, the first terminal identifier information is carried in an initial uplink RRC message.

[0127] In some embodiments, the second radio distributed unit function can receive an RRC connection establishment request message sent by the first terminal, and the first terminal identifier information is carried in the RRC connection establishment request message.

[0128] In some embodiments, the second radio distributed unit function sends an initial uplink RRC message to the first radio centralized unit control function, and the first terminal identifier information is carried in the initial uplink RRC message.

[0129] In some embodiments, the indication information of the first access network function is indication information of the first radio centralized unit control function; the indication information of the first radio centralized unit control function includes a first area identifier where the first radio centralized unit control function is located, a first set identifier in the first area, and an identifier of the first radio centralized unit control function in the first set.

[0130] In some embodiments, the first access network function is a second radio distributed unit function, the second access network function is a first radio centralized unit control function, and the first terminal identifier information is carried in an initial uplink RRC message transmission message.

[0131] In some embodiments, the indication information of the first access network function includes indication information of the second radio distributed unit function, or a fixed value indicating the second radio distributed unit function.

[0132] In some embodiments, the indication information of the second radio distributed unit function includes a second area identifier where the second radio distributed unit function is located, a second set identifier in the second area, and an identifier of the second radio distributed unit function in the second set.

[0133] In some embodiments, the identifier information of the first terminal is generated based on a preconfigured terminal allocation range.

[0134] In some embodiments, the first access network function is a first radio unit central unit control function, the second access network function is a radio unit user plane function, and the first terminal identifier information is carried in a bearer context setup request message.

[0135] In some embodiments, the first access network function is a first radio unit central unit control function, and the second access network function is a third radio distributed unit function. The first access network function sending the first terminal identifier information to the second access network function can include sending the first terminal identifier information to the third radio distributed unit function.

[0136] The first terminal identifier information is used by the third radio distributed unit function to identify the first terminal and associate the first terminal identifier information with first terminal resources. The first terminal resources include terminal context information and / or terminal bearer information.

[0137] In some embodiments, the first terminal identifier information can be carried in a downlink RRC message, that is, the first radio unit central unit control function can send a downlink RRC message to the third radio distributed unit function, the downlink RRC message carrying the first terminal identifier information.

[0138] In some embodiments, the first access network function is a first radio unit central unit control function, and in the method, the first radio unit central unit control function can receive the first terminal identifier information sent by the first terminal through the third radio distributed unit function.

[0139] In some embodiments, the first access network function is a first radio unit central unit control function, and in the method, the first radio unit central unit control function can receive the first terminal identifier information sent by the first terminal through the third radio distributed unit function; and if it is determined according to the first terminal identifier information that the first terminal cannot be served, a second radio unit central unit control function is selected.

[0140] In some embodiments, the first access network function is a first radio unit central unit control function, and in the method, the first radio unit central unit control function can receive the first terminal identifier information sent by the first terminal through the third radio distributed unit function; and if it is determined according to the first terminal identifier information that the first terminal can be served, the first access network function can continue to serve the first terminal without reselecting a radio unit central unit control function.

[0141] The second radio unit central unit control function can be a radio unit central unit control function different from the first radio unit central unit control function, and the second radio unit central unit control function can serve the first terminal.

[0142] When it is determined according to the first terminal identification information that the first terminal cannot be served, reselection of the radio centralized unit control function needs to be performed, that is, selection of another radio centralized unit control function other than the first radio centralized unit control function.

[0143] In some embodiments, the first terminal identification information can be carried in an initial uplink RRC message transmission message. That is, the first radio centralized unit control function receives an initial uplink RRC message transmission message sent by the third radio distributed unit function, and the first terminal identification information is carried in the initial uplink RRC message transmission message.

[0144] For example, the first terminal sends an RRC establishment request to the third radio distributed unit function, and the RRC establishment request carries the first terminal identification information. The third radio distributed unit function sends an initial uplink RRC message transmission message to the first radio centralized unit control function, and the initial uplink RRC message transmission message carries the first terminal identification information.

[0145] In some embodiments, the first access network function can send target identification information to the radio centralized unit user plane function, so that the radio centralized unit user plane function identifies a target terminal according to the target identification information, and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or terminal bearer information.

[0146] In some embodiments, the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information. Alternatively, the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

[0147] In some embodiments, the first access network function is the first radio centralized unit control function, and the first radio centralized unit control function sends the first terminal identification information to the radio centralized unit user plane function, so that the radio centralized unit user plane function identifies the first terminal according to the first terminal identification information, and associates the first terminal identification information with first terminal resources, the first terminal resources including: terminal context information, and / or terminal bearer information.

[0148] In some embodiments, the first access network function is a second radio distributed unit function, and the second radio distributed unit function can send, to the radio centralized unit user plane function through a radio distributed unit function (which can be any radio distributed unit function), third terminal identification information, so that the radio centralized unit user plane function identifies a third terminal according to the third terminal identification information and associates the third terminal identification information with third terminal resources, the third terminal resources including: context information of the third terminal, and / or, bearer information of the third terminal. The third terminal identification information is terminal identification information generated by the second radio distributed unit function.

[0149] The third terminal identification information includes: indication information of the second radio distributed unit function, and indication information of the third terminal.

[0150] In some embodiments, the target identification information can be carried in a bearer context establishment request message. That is, the first radio centralized unit control function sends, to the radio centralized unit user plane function, a bearer context establishment request message, and the bearer context establishment request message carries the first terminal identification information; or, any radio distributed unit function sends, to the radio centralized unit user plane function, a bearer context establishment request message, and the bearer context establishment request message carries the third terminal identification information.

[0151] In some embodiments, the first access network function can also send, to the target radio centralized unit control function, target identification information, so that the target radio centralized unit user plane function identifies a target terminal according to the target identification information and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or, terminal bearer information.

[0152] The terminal context information included in the target terminal resources can be context information of the target terminal, and the terminal bearer information included in the target terminal resources can be bearer information of the target terminal.

[0153] In some embodiments, when the first access network function is a first radio centralized unit control function, the target identification information is first terminal identification information generated by the first radio centralized unit control function.

[0154] In some embodiments, when the first access network function is a second radio distributed unit function, the target identification information is terminal identification information generated by the second radio distributed unit function. The terminal identification information generated by the second radio distributed unit function can be referred to as fourth terminal identification information.

[0155] In some embodiments, the first access network function is a first radio unit controller function, and the first radio unit controller function is a source radio unit controller function. The source radio unit controller function can send first terminal identification information to a target radio unit controller function, so that the first radio unit user plane function identifies the first terminal according to the first terminal identification information and associates the first terminal identification information with first terminal resources, which include context information of the first terminal and / or bearer information of the first terminal.

[0156] In some embodiments, the first access network function is a second radio distributed unit function. The second radio distributed unit function first sends fourth terminal identification information to a source radio unit controller function. The source radio unit controller function can send the fourth terminal identification information to a target radio unit controller function, so that the fourth radio unit user plane function identifies the fourth terminal according to the fourth terminal identification information and associates the fourth terminal identification information with fourth terminal resources, which include context information of the fourth terminal and / or bearer information of the fourth terminal.

[0157] The fourth terminal identification information includes indication information of the second radio distributed unit function and indication information of the fourth terminal.

[0158] In some embodiments, the target identification information can be carried in a handover request message. That is, the source radio unit controller function can send a handover request message to the target radio unit controller function, and the handover request message includes the first terminal identification information or the fourth terminal identification information.

[0159] In some embodiments, the first access network function can also receive target terminal identification information sent by the source radio unit controller function and second terminal resources associated with the second terminal identification information.

[0160] The second terminal identification information includes indication information of the source radio unit controller function and indication information of the second terminal, or the second terminal identification information includes indication information of the second radio distributed unit function and indication information of the second terminal. The second terminal resources include context information of the second terminal and / or bearer information of the second terminal.

[0161] In some embodiments, the first access network function is a first radio unit controller function, and the first radio unit controller function is a target radio unit controller function. In the terminal identification method, the target radio unit controller function can receive second terminal identification information and second terminal resources associated with the second terminal identification information sent by a source radio unit controller function. The second terminal identification information includes indication information of the source radio unit controller function and indication information of the second terminal.

[0162] In some embodiments, the first access network function is a second radio distributed unit function. The second radio distributed unit function can first send the second terminal identification information to the source radio unit controller function, and then the source radio unit controller function sends the second terminal identification information and the second terminal resources associated with the second terminal identification information to the target radio unit controller function. The second terminal identification information includes indication information of the second radio distributed unit function and indication information of the second terminal.

[0163] In some embodiments, the second terminal identification information can be carried in a handover request message. That is, the source radio unit controller function can send a handover request message to the target radio unit controller function, and the handover request message includes the second terminal identification information.

[0164] In some embodiments, the first access network function is a second radio distributed unit function, and the method of generating the first terminal identification information for the first terminal includes:

[0165] In some embodiments, the method further includes receiving an RRC connection establishment request message sent by the first terminal, and generating the first terminal identification information for the first terminal.

[0166] In some embodiments, the method further includes sending the first terminal identification information to the first radio unit controller function, and associating the first terminal identification information with the first terminal resources. The first terminal resources include terminal context information and / or terminal bearer information.

[0167] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0168] In some embodiments, the indication information of the first access network function includes indication information of the second radio distributed unit function, or a fixed value indicating the second radio distributed unit function.

[0169] In some embodiments, the indication information of the second radio distributed unit function includes:

[0170] an identity of a second region in which the second radio distributed unit function is located, an identity of the second set in the second region, and an identity of the second radio distributed unit function in the first set.

[0171] In some embodiments, the indication information of the first terminal is generated based on a preconfigured terminal allocation range.

[0172] The terminal identification method in the embodiments of the present disclosure, when applied to the architecture shown in FIG. 4, can include but is not limited to the case where the RCCF generates the terminal identification information, or the case where the RDUF generates the terminal identification information. In order to more clearly illustrate the scheme of the embodiments of the present disclosure, the two cases can be described respectively.

[0173] I. The case where the RCCF generates the terminal identification information:

[0174] Exemplarily, the composition of the terminal identification information (i.e. UE identification information, which can be denoted as UE ID hereinafter) generated by the RCCF can be as shown in FIG. 6, which is a schematic diagram of the terminal identification information generated by the RCCF. The terminal identification information can include the indication information of the RCCF and the indication information of the UE.

[0175] The indication information of the RCCF is the information of the RCCF in the RAN, and the specific format and length can be set according to actual requirements. The indication information of the UE is the ID assigned by the RCCF to the UE, which can uniquely identify the UE in the RCCF. Since the indication information of the RCCF in the RAN is unique, the UE identification information is unique in the RAN.

[0176] Exemplarily, as shown in FIG. 7, it is a flowchart of a terminal identification method, which can include but is not limited to the following steps:

[0177] 701. The UE sends an RRC connection setup request (RRC Setup Request) message to the RDUF.

[0178] In some embodiments, if the UE has been assigned a UE ID by the RAN, the UE ID can be carried in the RRC Setup Request message; if the UE has not been assigned a UE ID by the RAN, the UE ID is not carried in the RRC Setup Request message.

[0179] 702. The RDUF sends an initial uplink RRC message transfer (Initial UL RRC Message Transfer) message to the RCCF.

[0180] After the RDUF receives the RRC Setup Request message, the UE can be allocated a C-RNTI, and the allocated C-RNTI can be carried in the Initial UL RRC Message Transfer message sent to the RCCF.

[0181] 703. The RCCF generates a UE ID for the UE.

[0182] In some embodiments, the UE ID can be used to uniquely identify the UE in the RCCF.

[0183] 704. The RCCF sends a downlink RRC message transfer (DL RRC Message Transfer) message to the RDUF.

[0184] The UE ID is carried in the DL RRC Message Transfer message, and the RDUF stores the UE ID and uses the UE ID to identify the UE context.

[0185] 705. The RDUF sends an RRC connection setup (RRC Setup) message to the UE.

[0186] The RRC Setup message includes the UE ID.

[0187] In the above embodiments, after the RAN is serviced, the UE ID can be generated by the RCCF for the UE, so that the UE can be uniquely represented in the RAN.

[0188] In some embodiments, the UE ID can assist the RDUF in selecting the RCCF.

[0189] After the RAN is serviced, the RDUF can select a suitable RCCF based on the request of the UE. Since the UE ID contains the indication information of the RCCF, the RDUF can select the target RCCF based on the indication information of the RCCF in the UE ID.

[0190] For example, as shown in FIG. 8, a flowchart of a terminal identification method can include, but is not limited to, the following steps:

[0191] 801. The UE sends an RRC connection setup request (RRC Setup Request) message to the RDUF.

[0192] The RRC Setup Request carries the UE ID.

[0193] If the UE ID has been stored in the UE, the UE carries the UE ID when sending the RRC Setup Request message.

[0194] 802、The RDUF selects the RCCF.

[0195] After the RDUF receives the UE ID through the RRC Setup Request message, the RDUF can determine the RCCF based on the indication information of the RCCF in the UE ID.

[0196] 803、The RDUF sends an Initial UL RRC Message Transfer message to the RCCF.

[0197] The Initial UL RRC Message Transfer message carries the UE ID.

[0198] 804、The RCCF reselects.

[0199] The RCCF determines whether it can continue to serve the UE based on the UE ID. If it cannot continue to serve the UE, the RCCF reselects, i.e., selects another RCCF to serve the UE.

[0200] In the above embodiments, after the RAN is serviced, the UE ID generated by the RCCF can assist the RDUF in selecting the RCCF.

[0201] In some embodiments, after the RCCF allocates the UE ID, the UE ID can be used when the RCCF interacts with other RAN NFs to obtain information about the UE. After the RDUF receives the UE ID allocated by the RCUF, the RDUF stores and uses the UE ID to identify UE-related resources, which can include the context information of the UE and / or the bearer information of the UE. Similarly, the UE ID can also be used when the RCCF interacts with the RCUF.

[0202] For example, as shown in FIG. 9, a flowchart of a terminal identification method is shown. The method can include, but is not limited to, the following steps:

[0203] 901、The RCCF sends a Bearer Context Setup Request message to the RCUF.

[0204] The Bearer Context Setup Request message carries the UE ID allocated by the RCCF for the UE.

[0205] 902、The RCUF sends a Bearer Context Setup Response message to the RCCF.

[0206] The UE ID can be used by the RCUF to identify the context information of the UE and the bearer information of the UE.

[0207] In some embodiments, the Bearer Context Setup Response is used to inform the RCCF that the UE ID is received and used to identify the context information of the UE and the bearer information of the UE.

[0208] In the above embodiments, after the RAN service, the UE ID can be used to identify the context information of the UE and the bearer information of the UE.

[0209] In some embodiments, after the RAN service, when the RAN node changes, the source RCCF needs to interact with the target RCCF, and the UE related resources (the context information of the UE and / or the bearer information of the UE) in the source RCCF need to be passed to the target RCCF.

[0210] For example, as shown in FIG. 10, a flowchart of a terminal identification method can include but is not limited to the following steps:

[0211] 1001、The source (Source) RCCF sends a handover request (Handover Request) to the target (Tatget) RCCF.

[0212] The source RCCF can carry the UE ID in the Handover Request message, and the target RCCF can decide whether to continue to use the UE ID to identify the UE according to the UE ID. If the target RCCF no longer uses the UE ID, it can reassign the UE ID based on the method shown in FIG. 7, and can store the mapping relationship between the new and old UE IDs, and still use the old UE ID in the subsequent interaction with the source RCCF.

[0213] 1002、The target RCCF sends a handover request acknowledgement (Handover Request Acknowledge) message to the source RCCF.

[0214] The Handover Request Acknowledge is used to inform the source RCCF that the UE ID has been received.

[0215] In the above embodiments, after the RAN is serviced, when the RAN node changes, the source RCCF can pass the UE-related resources (context information of the UE, and / or, bearer information of the UE) to the target RCCF by using the UE ID to identify the UE in the process of interaction between the source RCCF and the target RCCF.

[0216] II. Case of generating terminal identification information by RDUF

[0217] Since the RCCF can be connected to multiple RDUFs, there can be a problem that the UE ID allocated by multiple RDUFs is not unique in the RCCF. Therefore, in order to ensure that the UE ID allocated by the RDUF is unique in the RCCF, the following methods can be used, including but not limited to the following methods:

[0218] Method 1

[0219] For example, the composition of the terminal identification information (i.e. UE identification information, which can be represented as UE ID hereinafter) generated by the RDUF can be as shown in FIG. 11. FIG. 11 is a schematic diagram of terminal identification information generated by the RDUF, which can include indication information of the RDUF and indication information of the UE.

[0220] The indication information of the RDUF is all or part of the self-identification of the RDUF in the RAN, so as to ensure that the UE ID is unique in the RCCF.

[0221] Method 2

[0222] The terminal allocation range of the RDUF is planned in advance, or the terminal allocation range of the RDUF is preconfigured. For example, as shown in FIG. 12, the RDUF can generate the terminal identification information (i.e. UE identification information, which can be represented as UE ID hereinafter) of the UE by combining a fixed value with the terminal allocation range (i.e. the allocable range of the indication information of the UE).

[0223] The terminal allocation range is the allocable range of the indication information of the UE.

[0224] In some embodiments, in the initial access process, the RDUF can generate the above-mentioned UE ID for the UE after receiving the request of the UE. For example, as shown in FIG. 13, a flowchart of a terminal identification method can include the following steps, including but not limited to the following steps:

[0225] 1301. The UE sends an RRC setup request (RRC Setup Request) message to the RDUF.

[0226] The UE ID can be generated by the RDUF after the RDUF receives the RRC Setup Request.

[0227] 1302. The RDUF generates the UE ID for the UE.

[0228] 1303. The RDUF sends an Initial UE RRC Message Transfer message to the RCCF.

[0229] The UE ID can be carried in the Initial UE RRC Message Transfer message by the RDUF. The UE ID can be used by the RCCF to identify the UE related resources, which can include the UE context information and / or the UE bearer information.

[0230] In the above embodiments, the RDUF can generate the UE ID after the RAN is serviced, and ensure that the UE ID assigned by the RDUF is unique in the RCCF.

[0231] In some embodiments, the RDUF can send the UE ID to the target RAN NF in the interaction with the RCUF and other RCCFs after the RDUF generates the UE ID. For example, the interaction process shown in FIG. 9 and FIG. 10 can be similar, except that the UE ID in the interaction process is generated by the RDUF.

[0232] For example, for the case of generating the terminal identification information by the RCCF, the composition of the indication information of the RCCF in the terminal identification information (i.e., the UE ID) can be:

[0233] The indication information of the RCCF (RCCF ID): <RCCF Region ID><RCCF Set ID><RCCF Pointer>;

[0234] The RCCF Region ID represents the region identifier to which the RCCF belongs, the RCCF Set ID represents the identifier of the RCCF set in the region indicated by the region identifier, and the RCCF Pointer represents the identifier of the RCCF.

[0235] For example, the UE ID can be 40 bits, the RCCF ID can occupy 20 bits, and the indication information of the UE assigned by the RCCF can occupy 20 bits.

[0236] Exemplarily, since the UE ID assigned by the RCCF needs to be transmitted over the air interface, in some scenarios, a short version of the above UE ID can be sent, i.e., the RCCF ID part can be simplified to 8 bits. Exemplarily, the RCCF ID part can only include <RCCF Set ID> and / or <RCCF Pointer>, and the indication information of the UE assignable by the RCCF remains unchanged at 20 bits.

[0237] For the case of generating terminal identification information by the above RDUF, the composition of the indication information of the RDUF in the terminal identification information (i.e., UE ID) can be:

[0238] The indication information of the RDUF (RDUF ID): <RDUF Region ID> <RDUF Set ID> <RDUF Pointer>;

[0239] Among them, RDUF Region ID represents the identification of the region to which the RDUF belongs, RDUF Set ID represents the identification of the RDUF set in the region, and RDUF Pointer represents the identification of the RDUF in the RDUF set.

[0240] Since the number of RDUFs is much larger than the number of RCCFs, if the proportion of the RDUF ID part compared to the above RCCF ID part is set to be larger, then the length of the RDUF ID can be set to 24 bits, and the indication information of the assignable UE can be 16 bits.

[0241] The above method of combining a fixed value with a terminal allocation range can assign different fixed value prefixes to each RDUF, and determine the indication information of the UE in the terminal allocation range based on the service capability of the RDUF. Exemplarily, the length of the fixed value of the RDUF ID can be set to 16 bits, and the terminal allocation range can be 24 bits, or the length of the fixed value of the RDUF ID can be set to 24 bits, and the terminal allocation range can be 16 bits. The lengths of the fixed values that can be set by different RDUFs can be different.

[0242] It should be understood that although each step in the flowchart involved in each embodiment as described above is shown in sequence according to the direction of the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless explicitly stated herein, there is no strict order limitation for the execution of these steps, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0243] Based on the same technical concept, the embodiments of the disclosure also provide a communication network element. The communication network element can implement the first terminal, the first access network function, and the second access network function in the foregoing embodiments.

[0244] For example, FIG. 14 is a structural schematic diagram of a communication network element provided by an embodiment. The communication network element includes a memory 1401, a transceiver 1402, and a processor 1403, wherein the memory 1401, the transceiver 1402, and the processor 1403 are connected through a bus interface.

[0245] The memory 1401 is configured to store a computer program; and the transceiver 1402 is configured to transceive data under the control of the processor 1403.

[0246] For the case that the communication network element is a first terminal:

[0247] The processor 1403 is configured to read the computer program in the memory 1401 and perform the following operations:

[0248] sending first terminal identification information to a first wireless distributed unit function;

[0249] The first terminal identification information includes indication information of a first wireless centralized unit control function and indication information of the first terminal, and the first terminal identification information is used by the first wireless distributed unit function to determine the first wireless centralized unit control function serving the first terminal.

[0250] In some embodiments, the first terminal identification information is carried in an RRC setup request message.

[0251] In some embodiments, the processor 1403 is further configured to read the computer program in the memory 1401 and perform the following operations:

[0252] receive an RRC setup message sent by the third radio distributed unit function, the RRC setup message carrying the first terminal identification information.

[0253] For a case where the communication network element is a first access network function:

[0254] The processor 1403 is configured to read a computer program in the memory 1401 and perform the following operations:

[0255] generate first terminal identification information for a first terminal;

[0256] The first terminal identification information includes indication information of the first access network function and indication information of the first terminal.

[0257] In some embodiments, the first access network function includes a first radio centralized unit control function or a second radio distributed unit function.

[0258] In some embodiments, the first access network function is the radio centralized unit control function, and the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0259] send the first terminal identification information to a third radio distributed unit function, the first terminal identification information being used by the third radio distributed unit function to identify the first terminal and associate the first terminal identification information with first terminal resources, the first terminal resources including terminal context information and / or terminal bearer information.

[0260] In some embodiments, the first terminal identification information is carried in a downlink RRC message.

[0261] In some embodiments, the first access network function is the first radio centralized unit control function, and the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0262] receive the first terminal identification information sent by the first terminal through the third radio distributed unit function.

[0263] In some embodiments, the first access network function is the first radio centralized unit control function, and the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0264] determine that the first terminal cannot be served according to the first terminal identification information, and select a second radio centralized unit control function.

[0265] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0266] In some embodiments, the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0267] sending target identification information to a radio centralized unit user plane function, so that the radio centralized unit user plane function identifies a target terminal according to the target identification information, and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or terminal bearer information;

[0268] In some embodiments, the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

[0269] In some embodiments, the target identification information is carried in a bearer context establishment request message.

[0270] In some embodiments, the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0271] sending target identification information to a target radio centralized unit control function, so that the target radio centralized unit user plane function identifies the target terminal according to the target identification information, and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or terminal bearer information;

[0272] In some embodiments, the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

[0273] In some embodiments, the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0274] receiving second terminal identification information and second terminal resources associated with the second terminal identification information sent by a source radio centralized unit control function;

[0275] The second terminal identification information includes indication information of the source radio centralized unit control function and indication information of the second terminal, or the second terminal identification information includes indication information of the second radio distributed unit function and indication information of the second terminal.

[0276] In some embodiments, the target identification information is carried in a handover request message.

[0277] In some embodiments, the indication information of the first access network function is indication information of the first radio centralized unit control function, and the indication information of the first radio centralized unit control function includes:

[0278] an identifier of a first area in which the first radio centralized unit control function is located, an identifier of a first set in the first area, and an identifier of the first radio centralized unit control function in the first set.

[0279] In some embodiments, the first access network function is the second radio distributed unit function, and the processor 1403 is specifically configured to read the computer program in the memory 1401 and perform the following operations:

[0280] receiving an RRC connection establishment request message sent by the first terminal, and generating first terminal identification information for the first terminal.

[0281] In some embodiments, the processor 1403 is further configured to read the computer program in the memory 1401 and perform the following operations:

[0282] sending the first terminal identification information to the first radio centralized unit control function, the first terminal identification information being used by the first radio centralized unit control function to identify the first terminal, and the first terminal identification information being associated with first terminal resources, the first terminal resources including terminal context information and / or terminal bearer information.

[0283] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0284] In some embodiments, the indication information of the first access network function includes indication information of the second radio distributed unit function or a fixed value indicating the second radio distributed unit function.

[0285] In some embodiments, the indication information of the second radio distributed unit function includes:

[0286] an identity of a second area in which the second radio distributed unit function is located, an identity of a second set in the second area, and an identity of the second radio distributed unit function in the first set.

[0287] In some embodiments, the indication information of the first terminal is generated based on a preconfigured terminal allocation range.

[0288] For a case where the communication network element is a second access network function:

[0289] The processor 1403 is configured to read a computer program in the memory 1401 and perform the following operations:

[0290] receiving first terminal identification information sent by a first access network function, the first terminal identification information including indication information of the first access network function and indication information of a first terminal.

[0291] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the first terminal identification information is carried in a downlink RRC message.

[0292] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the processor 1403 is further configured to read a computer program in the memory 1401 and perform the following operations:

[0293] receiving the first terminal identification information sent by the first terminal and sending the first terminal identification information to the first radio centralized unit control function.

[0294] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message.

[0295] In some embodiments, the indication information of the first access network function is indication information of the first radio centralized unit control function, and the indication information of the first radio centralized unit control function includes:

[0296] an identity of a first area in which the first radio centralized unit control function is located, an identity of a first set in the first area, and an identity of the first radio centralized unit control function in the first set.

[0297] In some embodiments, the first access network function is the second radio distributed unit function, the second access network function is the first radio centralized unit control function, and the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0298] In some embodiments, the indication information of the first access network function comprises: indication information of the second radio distributed unit function, or a fixed value used for indicating the second radio distributed unit function.

[0299] In some embodiments, the indication information of the second radio distributed unit function comprises:

[0300] an identity of a second area where the second radio distributed unit function is located, a second set identity in the second area, and an identity of the second radio distributed unit function in the first set.

[0301] In some embodiments, the identity information of the first terminal is generated based on a pre-configured terminal allocation range.

[0302] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a radio centralized unit user plane function, and the first terminal identity information is carried in a bearer context establishment request message.

[0303] In an exemplary embodiment, as shown in FIG. 15, a structural block diagram of a first terminal is provided, comprising:

[0304] a sending module 15 configured to send first terminal identity information to a first radio distributed unit function;

[0305] The first terminal identity information comprises: indication information of a first radio centralized unit control function, and indication information of the first terminal, and the first terminal identity information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

[0306] In an exemplary embodiment, as shown in FIG. 16, a structural block diagram of a first access network function is provided, comprising:

[0307] a generating module 1601 configured to generate first terminal identity information for a first terminal;

[0308] The first terminal identity information comprises: indication information of the first access network function, and indication information of the first terminal.

[0309] In some embodiments, the first access network function comprises: a first radio centralized unit control function, or a second radio distributed unit function.

[0310] In some embodiments, the first access network function is the radio centralized unit control function, and the first access network function further comprises a sending module 1602 configured to:

[0311] send the first terminal identification information to a third radio distributed unit function, the first terminal identification information being used by the third radio distributed unit function to identify the first terminal and associate the first terminal identification information with first terminal resources, the first terminal resources including: terminal context information, and / or, terminal bearer information.

[0312] In some embodiments, the first terminal identification information is carried in a downlink RRC message.

[0313] In some embodiments, the first access network function is the first radio centralized unit control function, and the first access network function further includes:

[0314] The receiving module 1603 is configured to receive, by the third radio distributed unit function, the first terminal identification information sent by the first terminal.

[0315] In some embodiments, the first access network function is the first radio centralized unit control function, and the first access network function further includes:

[0316] The reselecting module 1604 is configured to, according to the first terminal identification information, determine that the first terminal cannot be served, and select a second radio centralized unit control function.

[0317] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0318] In some embodiments, the sending module 1602 included in the first access network function is further configured to send target identification information to a radio centralized unit user plane function, so that the radio centralized unit user plane function identifies a target terminal according to the target identification information and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or, terminal bearer information.

[0319] In some embodiments, the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

[0320] In some embodiments, the target identification information is carried in a bearer context establishment request message.

[0321] In some embodiments, the sending module 1602 included in the first access network function is further configured to:

[0322] sending target identification information to a target radio centralized unit control function, so that the target radio centralized unit user plane function identifies the target terminal according to the target identification information, and associates the target identification information with target terminal resources, the target terminal resources including: terminal context information, and / or terminal bearer information;

[0323] The first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

[0324] In some embodiments, the receiving module 1603 is further configured to:

[0325] receive second terminal identification information and second terminal resources associated with the second terminal identification information sent by a source radio centralized unit control function;

[0326] The second terminal identification information includes indication information of the source radio centralized unit control function and indication information of a second terminal, or the second terminal identification information includes indication information of the second radio distributed unit function and indication information of a second terminal, and the second terminal resources include: terminal context information, and / or terminal bearer information.

[0327] In some embodiments, the target identification information is carried in a handover request message.

[0328] In some embodiments, the indication information of the first access network function is indication information of the first radio centralized unit control function; and the indication information of the first radio centralized unit control function includes:

[0329] an identifier of a first area where the first radio centralized unit control function is located, an identifier of a first set in the first area, and an identifier of the first radio centralized unit control function in the first set.

[0330] In some embodiments, the first access network function is the second radio distributed unit function, and the generating module 1601 is specifically configured to:

[0331] After the receiving module 1603 receives the RRC connection establishment request message sent by the first terminal, generate first terminal identification information for the first terminal.

[0332] In some embodiments, the sending module 1602 is further configured to send the first terminal identification information to the first radio centralized unit control function, where the first terminal identification information is used by the first radio centralized unit control function to identify the first terminal, and the first terminal identification information is associated with first terminal resources, where the first terminal resources include terminal context information and / or terminal bearer information.

[0333] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0334] In some embodiments, the indication information of the first access network function includes indication information of the second radio distributed unit function, or a fixed value indicating the second radio distributed unit function.

[0335] In some embodiments, the indication information of the second radio distributed unit function includes:

[0336] an identity of a second area in which the second radio distributed unit function is located, an identity of a second set in the second area, and an identity of the second radio distributed unit function in the first set.

[0337] In some embodiments, the indication information of the first terminal is generated based on a preconfigured terminal allocation range.

[0338] In one exemplary embodiment, as shown in FIG. 17, a structural block diagram of a second access network function is provided, including:

[0339] A receiving module 1701 is configured to receive first terminal identification information sent by a first access network function, where the first terminal identification information includes indication information of the first access network function and indication information of a first terminal.

[0340] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the first terminal identification information is carried in a downlink RRC message.

[0341] In some embodiments, the first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the receiving module 1701 is further configured to receive first terminal identification information sent by the first terminal.

[0342] The above-mentioned second access network function further includes a sending module 1702 configured to send the first terminal identification information to the first radio centralized unit control function.

[0343] In some embodiments, the first terminal identification information is carried in an initial uplink RRC message.

[0344] In some embodiments, the indication information of the first access network function is indication information of a first radio centralized unit control function; the indication information of the first radio centralized unit control function comprises:

[0345] a first area identifier in which the first radio centralized unit control function is located, a first set identifier in the first area, and an identifier of the first radio centralized unit control function in the first set.

[0346] In some embodiments, the first access network function is the second radio distributed unit function, the second access network function is the first radio centralized unit control function, and the first terminal identification information is carried in an initial uplink RRC message transmission message.

[0347] In some embodiments, the indication information of the first access network function comprises: indication information of the second radio distributed unit function, or a fixed value used to indicate the second radio distributed unit function.

[0348] In some embodiments, the indication information of the second radio distributed unit function comprises:

[0349] a second area identifier in which the second radio distributed unit function is located, a second set identifier in the second area, and an identifier of the second radio distributed unit function in the first set.

[0350] In some embodiments, the identification information of the first terminal is generated based on a preconfigured terminal allocation range.

[0351] In some embodiments, the first access network function is the first radio centralized unit control function, the second access network function is a radio centralized unit user plane function, and the first terminal identification information is carried in a bearer context establishment request message.

[0352] It should be noted that the division of modules in the embodiments of the present disclosure is illustrative, and is only a logical function division. In actual implementation, another division manner can be used. In addition, each functional module in each embodiment of the present disclosure can be integrated in one processing module, or each module can be physically present alone, or two or more modules can be integrated in one module. The integrated module can be realized in the form of hardware or in the form of a software functional module.

[0353] The integrated module described above, if realized in the form of a software function module and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such an understanding, the technical solutions of the present disclosure, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present disclosure.

[0354] It should be noted that the above-mentioned device provided by the embodiments of the present application can realize all the method steps realized by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0355] In one embodiment, a computer-readable storage medium is provided, which stores a computer program. The computer program is executed by a processor to realize all the method steps realized by the method embodiments described above.

[0356] In one embodiment, a computer program product is provided, which includes a computer program. The computer program is executed by a processor to realize all the method steps realized by the method embodiments described above.

[0357] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, database or other medium used in the embodiments provided by the present disclosure can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present disclosure can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present disclosure can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0358] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0359] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present disclosure, and they should be covered in the scope of the claims and the specification of the present disclosure. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A terminal identification method applied to a first terminal, comprising: sending first terminal identification information to a first radio distributed unit function; wherein the first terminal identification information comprises indication information of a first radio centralized unit control function and indication information of the first terminal, and the first terminal identification information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

2. The method of claim 1, wherein, The first terminal identification information is carried in an RRC setup request message.

3. The method of claim 1 or 2, wherein, receiving an RRC setup message sent by a third radio distributed unit function, wherein the first terminal identification information is carried in the RRC setup message.

4. A terminal identification method, wherein, The method is applied to a first access network function, comprising: generating first terminal identification information for a first terminal; wherein the first terminal identification information comprises indication information of the first access network function and indication information of the first terminal.

5. The method of claim 4, wherein, The first access network function comprises a first radio centralized unit control function or a second radio distributed unit function.

6. The method of claim 5, wherein, When the first access network function is the radio centralized unit control function, the method further comprises: sending the first terminal identification information to a third radio distributed unit function, wherein the first terminal identification information is used by the third radio distributed unit function to identify the first terminal and associate the first terminal identification information with first terminal resources, wherein the first terminal resources comprise terminal context information and / or terminal bearer information.

7. The method of claim 6, wherein, The first terminal identification information is carried in a downlink RRC message.

8. The method of claim 5, wherein, When the first access network function is the first radio centralized unit control function, the method further comprises: receiving the first terminal identification information sent by the first terminal through the third radio distributed unit function. 9.The method of claim 6, wherein, if it is determined according to the first terminal identification information that the first terminal cannot be served, a second radio centralized unit control function is selected.

10. The method of claim 8, wherein, The first terminal identification information is carried in an initial uplink RRC message transmission message.

11. The method according to any one of claims 5 to 10, wherein, The method further comprises: sending target identification information to a radio centralized unit user plane function, so that the radio centralized unit user plane function identifies a target terminal according to the target identification information and associates the target identification information with target terminal resources, wherein the target terminal resources comprise terminal context information and / or terminal bearer information; wherein the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

12. The method of claim 11, wherein, The target identification information is carried in a bearer context setup request message.

13. The method according to any one of claims 5 to 10, wherein, The method further comprises: sending target identification information to a target radio centralized unit control function, so that the target radio centralized unit user plane function identifies the target terminal according to the target identification information, and associates the target identification information with target terminal resources, the target terminal resources comprising: terminal context information, and / or terminal bearer information; wherein the first access network function is the first radio centralized unit control function, and the target identification information is the first terminal identification information, or the first access network function is the second radio distributed unit function, and the target identification information is terminal identification information generated by the second radio distributed unit function.

14. The method according to any one of claims 5 to 10, wherein, The method further comprises: receiving second terminal identification information and second terminal resources associated with the second terminal identification information sent by a source radio centralized unit control function; wherein the second terminal identification information comprises: indication information of the source radio centralized unit control function and indication information of a second terminal, or the second terminal identification information comprises: indication information of the second radio distributed unit function and indication information of a second terminal, and the second terminal resources comprise: terminal context information, and / or terminal bearer information.

15. The method of claim 13, wherein, The target identification information is carried in a handover request message.

16. The method according to any one of claims 5 to 10, wherein, The indication information of the first access network function is indication information of the first radio centralized unit control function. The indication information of the first radio centralized unit control function comprises: an identifier of a first area in which the first radio centralized unit control function is located, an identifier of a first set in the first area, and an identifier of the first radio centralized unit control function in the first set.

17. The method according to any one of claims 5 to 10, wherein, The first access network function is the second radio distributed unit function, and generating first terminal identification information for the first terminal comprises: receiving an RRC connection establishment request message sent by the first terminal, and generating first terminal identification information for the first terminal.

18. The method of any one of claims 5 to 10, wherein, The method further comprises: sending the first terminal identification information to the first radio centralized unit control function, the first terminal identification information being used by the first radio centralized unit control function to identify the first terminal, and associate the first terminal identification information with first terminal resources, the first terminal resources comprising: terminal context information, and / or terminal bearer information.

19. The method of claim 18, wherein, The first terminal identification information is carried in an initial uplink RRC message transmission message.

20. The method of any one of claims 5 to 10, wherein, The indication information of the first access network function comprises: indication information of the second radio distributed unit function, or a fixed value used to indicate the second radio distributed unit function.

21. The method of claim 20, wherein, The indication information of the second radio distributed unit function comprises: an identifier of a second area in which the second radio distributed unit function is located, an identifier of a second set in the second area, and an identifier of the second radio distributed unit function in the first set.

22. The method of any one of claims 4 to 21, wherein, The indication information of the first terminal is generated based on a preconfigured terminal allocation range.

23. A terminal identification method applied to a second access network function, the method comprising: receive first terminal identification information sent by a first access network function, the first terminal identification information including indication information of the first access network function and indication information of a first terminal.

24. The method of claim 23, wherein, The first access network function is a first radio centralized unit control function, and the second access network function is a second radio distributed unit function. The first terminal identification information is carried in a downlink RRC message.

25. The method of claim 23, wherein, The first access network function is a first radio centralized unit control function, and the second access network function is a second radio distributed unit function. The method further includes: receive the first terminal identification information sent by the first terminal, and send the first terminal identification information to the first radio centralized unit control function.

26. The method of claim 25, wherein, The first terminal identification information is carried in an initial uplink RRC message.

27. The method of claim 26, wherein, The indication information of the first access network function is indication information of the first radio centralized unit control function. The indication information of the first radio centralized unit control function includes: a first area identifier of the first radio centralized unit control function, a first set identifier in the first area, and an identifier of the first radio centralized unit control function in the first set.

28. The method of claim 24, wherein, The first access network function is the second radio distributed unit function, the second access network function is the first radio centralized unit control function, and the first terminal identification information is carried in an initial uplink RRC message transmission message.

29. The method of claim 28, wherein, The indication information of the first access network function includes indication information of the second radio distributed unit function or a fixed value indicating the second radio distributed unit function.

30. The method of claim 29, wherein, The indication information of the second radio distributed unit function includes: a second area identifier of the second radio distributed unit function, a second set identifier in the second area, and an identifier of the second radio distributed unit function in the second set.

31. The method of any one of claims 23 to 30, wherein, The identification information of the first terminal is generated based on a preconfigured terminal allocation range.

32. The method of any one of claims 23 to 30, wherein, The first access network function is the first radio centralized unit control function, the second access network function is a radio centralized unit user plane function, and the first terminal identification information is carried in a bearer context establishment request message.

33. A first terminal comprising: a memory, a transceiver, and a processor: The memory is configured to store a computer program, the transceiver is configured to transceive data under control of the processor, and the processor is configured to read the computer program in the memory and perform the following operations: send first terminal identification information to a first radio distributed unit function; The first terminal identification information includes indication information of a first radio centralized unit control function and indication information of a first terminal, and the first terminal identification information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

34. A first access network function, comprising: a memory, a transceiver, and a processor: The memory is configured to store a computer program, the transceiver is configured to transceive data under control of the processor, and the processor is configured to read the computer program in the memory and perform the following operations: generate first terminal identification information for a first terminal; The first terminal identification information includes indication information of a first radio centralized unit control function and indication information of a first terminal, and the first terminal identification information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal. The first terminal identifier information includes indication information of the first access network function and indication information of the first terminal.

35. The first access network function of claim 34, wherein, The first access network function includes a first radio centralized unit control function or a second radio distributed unit function.

36. The first access network function of claim 35, wherein, The first access network function is the first radio centralized unit control function, The processor is further configured to read a computer program in the memory and perform the following operations: The first terminal identifier information is sent to a third radio distributed unit function, and the first terminal identifier information is used by the third radio distributed unit function to identify the first terminal and associate the first terminal identifier information with first terminal resources, the first terminal resources including terminal context information and / or terminal bearer information.

37. The first access network function of claim 35, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: The first terminal identifier information is received by the third radio distributed unit function from the first terminal.

38. The first access network function of claim 37, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: If it is determined according to the first terminal identifier information that the first terminal cannot be served, a second radio centralized unit control function is selected.

39. The first access network function of any one of claims 35 to 38, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: Target identifier information is sent to a radio centralized unit user plane function, so that the radio centralized unit user plane function identifies a target terminal according to the target identifier information and associates the target identifier information with target terminal resources, the target terminal resources including terminal context information and / or terminal bearer information. The first access network function is the first radio centralized unit control function, and the target identifier information is the first terminal identifier information, or the first access network function is the second radio distributed unit function, and the target identifier information is terminal identifier information generated by the second radio distributed unit function.

40. The first access network function of any one of claims 35 to 38, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: Second terminal identifier information and second terminal resources associated with the second terminal identifier information are received from a source radio centralized unit control function. The second terminal identifier information includes indication information of the source radio centralized unit control function and indication information of a second terminal, or the second terminal identifier information includes indication information of the second radio distributed unit function and indication information of the second terminal, and the second terminal resources include terminal context information and / or terminal bearer information.

41. The first access network function of any one of claims 35 to 38, wherein, The first radio centralized unit control function is a target radio centralized unit control function, and the processor is further configured to read a computer program in the memory and perform the following operations: Second terminal identifier information and second terminal resources associated with the second terminal identifier information are received from a source radio centralized unit control function. The first access network function is the first radio centralized unit control function, and the target identifier information is the first terminal identifier information, or the first access network function is the second radio distributed unit function, and the target identifier information is terminal identifier information generated by the second radio distributed unit function, and the target terminal resource includes terminal context information and / or terminal bearer information.

42. The first access network function of any one of claims 35 to 38, wherein, The indication information of the first access network function is indication information of the first radio centralized unit control function. The indication information of the first radio centralized unit control function includes: The indication information of the first radio centralized unit control function includes an identifier of a first area where the first radio centralized unit control function is located, an identifier of a first set in the first area, and an identifier of the first radio centralized unit control function in the first set.

43. The first access network function of any one of claims 35 to 38, wherein, The first access network function is the second radio distributed unit function, and the processor is further configured to read the computer program in the memory and perform the following operations: receive an RRC connection establishment request message sent by the first terminal, and generate first terminal identifier information for the first terminal.

44. The first access network function of any one of claims 35 to 38, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: send the first terminal identifier information to the first radio centralized unit control function, the first terminal identifier information being used by the first radio centralized unit control function to identify the first terminal, and associate the first terminal identifier information with first terminal resource, the first terminal resource including terminal context information and / or terminal bearer information.

45. A second access network function, comprising: The memory, the transceiver, and the processor: The memory is configured to store a computer program, and the transceiver is configured to transceive data under control of the processor. The processor is configured to read the computer program in the memory and perform the following operations: receive first terminal identifier information sent by a first access network function, the first terminal identifier information including indication information of the first access network function and indication information of a first terminal.

46. The second access network function of claim 45, wherein, The first access network function is a first radio centralized unit control function, the second access network function is a second radio distributed unit function, and the processor is further configured to read the computer program in the memory and perform the following operations: receive the first terminal identifier information sent by the first terminal, and send the first terminal identifier information to the first radio centralized unit control function.

47. A first terminal, comprising: a sending module configured to send first terminal identifier information to a first radio distributed unit function; The first terminal identifier information includes indication information of a first radio centralized unit control function and indication information of a first terminal, and the first terminal identifier information is used by the first radio distributed unit function to determine the first radio centralized unit control function serving the first terminal.

48. A first access network function, comprising: a generating module configured to generate first terminal identifier information for a first terminal; The first terminal identifier information includes indication information of the first access network function and indication information of the first terminal. 49.A second access network function, comprising: a receiving module, configured to receive first terminal identification information sent by a first access network function, wherein the first terminal identification information comprises indication information of the first access network function and indication information of a first terminal.

50. A computer readable storage medium, wherein, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the method in any one of claims 1 to 32.

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