Communication method and device based on wireless access network architecture, and readable storage medium

Abstract

The invention discloses a communication method based on a wireless access network architecture. The method comprises the steps that a first network function receives a signaling transmission establishment request of UE through a third network function; the first network function establishes a first signaling with a third network function according to the establishment signaling transmission request; the first network function sends a signaling transmission instruction to the second network function; signaling interaction is established between the second network function and the third network function; wherein the first signaling is an access layer signaling established by the RAN and the UE, and the first network function and the second network function are mutually independent network functions in the RAN control plane. The method and the device are used for solving the technical problem that in the prior art, an RAN can only deploy a gNB-CU-CP which not only supports a UE wireless connection management function, but also supports a UE user plane data transmission management function, so that the cost is relatively high.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method, device and readable storage medium based on a wireless access network architecture. Background Art

[0002] The existing NG-RAN (Next Generation Radio Access Network, next generation radio access network / 5G radio access network) carries all control plane functions by the same logical node gNB-CU-CP (The Next Generation Node B-Centralized Unit-Control Plane, 5G base station-centralized unit-control plane), resulting in high complexity of gNB-CU-CP and high coupling between functions, which leads to slow base station service launch. In addition, gNB-CU-CP includes wireless connection management functions, wireless bearer management functions, wireless network opening functions, etc. Although the functions are relatively independent, when any of the functions needs to be updated, the entire gNB-CU-CP needs to be updated, resulting in complex service updates and a long online development cycle.

[0003] Facing the future 6G distributed network scenarios, the different functions of distributed nodes may lead to differentiated requirements for RAN (Radio Access Network) wireless functions, and RAN will no longer be required to have complete wireless network functions. For example, in the interawareness fusion scenario, there may be no need to support UE (User Equipment) user plane data transmission management network functions, but it is necessary to support the management of UE wireless connections; in some positioning scenarios, there may be no need to support UE user plane data transmission management network functions, and only wireless connection functions are required. In this case, the existing RAN can only deploy gNB-CU-CP that includes both support for UE wireless connection management functions and support for UE user plane data transmission management functions, resulting in high costs. Summary of the invention

[0004] The embodiments of the present application provide a communication method, device and readable storage medium based on a wireless access network architecture, which are used to solve the technical problem that in the prior art, RAN can only deploy gNB-CU-CP that includes both supporting UE wireless connection management functions and supporting UE user plane data transmission management functions, resulting in high costs.

[0005] In a first aspect, an embodiment of the present application provides a communication method based on a wireless access network architecture, which is applied to a base station. The method includes:

[0006] The first network function receives a signaling transmission establishment request from the user terminal UE through the third network function;

[0007] The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request;

[0008] The first network function sends a signaling transmission indication to the second network function;

[0009] The second network function establishes signaling interaction with the third network function;

[0010] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0011] Optionally, the first network function interacts with the second network function via a service-based interface or a point-to-point interface; and / or

[0012] The first network function interacts with the third network function via a service-based interface or a point-to-point interface; and / or

[0013] The second network function interacts with the third network function via a service-based interface or a point-to-point interface.

[0014] Optionally, the establishing the first signaling includes:

[0015] The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes a second network function identifier or a second network function address;

[0016] The signaling transmission indication sent by the first network function to the second network function includes a third network function identifier or a third network function address;

[0017] The establishing of signaling interaction includes:

[0018] The second network function stores and applies the third network function identifier or the third network function address;

[0019] The second network function establishes a signaling interaction with the third network function.

[0020] Optionally, the method further includes:

[0021] In a case where the second network function stores and applies the third network function identifier or the third network function address, the second network function establishes a data transmission channel with the third network function.

[0022] Optionally, the establishing the first signaling includes:

[0023] The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes one of a second network function identifier and a second network function address and one of a fourth network function identifier and a fourth network function address;

[0024] The signaling transmission indication sent by the first network function to the second network function includes one of a third network function identifier and a third network function address and one of a fourth network function identifier and a fourth network function address;

[0025] The establishing of signaling interaction includes:

[0026] The second network function stores and applies one of the third network function identifier and the third network function address and one of the fourth network function identifier and the fourth network function address;

[0027] The second network function establishes signaling interaction with the third network function and the fourth network function respectively.

[0028] Optionally, the method further includes:

[0029] The second network function sends a third network function identifier or a third network function address to the fourth network function;

[0030] The fourth network function stores and applies the third network function identifier or the third network function address;

[0031] The fourth network function establishes a data transmission channel with the third network function.

[0032] Optionally, the second network function interacts with the fourth network function via a service-based interface or a point-to-point interface; and / or

[0033] The third network function interacts with the fourth network function via a service-based interface or a point-to-point interface.

[0034] Optionally, the method further includes:

[0035] The first network function establishes a second signaling with a fifth network function according to the signaling transmission establishment request;

[0036] The fifth network function is a function in the core network, and the second signaling is signaling for interaction between the RAN and the core network.

[0037] Optionally, the first network function interacts with the fifth network function via a service-based interface or a point-to-point interface.

[0038] Optionally, the method further includes:

[0039] When the second signaling is established between the first network function and the fifth network function, the first network function receives response information from the fifth network function.

[0040] Optionally, the method further includes:

[0041] When the first network function and the UE establish the first signaling, the first network function receives response information from the UE.

[0042] Optionally, the method further includes:

[0043] In a case where the first network function receives a request to modify, release or delete UE signaling, the first network function modifies, releases or deletes the first signaling and the second signaling.

[0044] Optionally, the method further includes:

[0045] In a case where the first network function modifies, releases or deletes the second signaling, the first network function receives response information from the fifth network function.

[0046] In a second aspect, an embodiment of the present application provides a communication method based on a wireless access network architecture, which is applied to a UE, and the method includes:

[0047] The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0048] In a case where the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane;

[0049] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0050] Optionally, the UE establishing signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane includes:

[0051] The UE establishes interaction with the second network function through the third network function according to the third network function identifier or the third network function address sent by the first network function to the second network function and stored and applied by the second network function.

[0052] Optionally, the method further includes:

[0053] In a case where the second network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the second network function through the third network function.

[0054] Optionally, the method further includes:

[0055] In a case where the second network function sends a third network function identifier or a third network function address to the fourth network function and the fourth network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the fourth network function through the third network function.

[0056] Optionally, when the first network function and the UE establish the first signaling, the UE sends response information to the first network function.

[0057] In a third aspect, an embodiment of the present application provides a communication device based on a wireless access network architecture, which is applied to a base station. The device includes a memory, a transceiver, and a processor:

[0058] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0059] The first network function receives a signaling transmission establishment request from the UE through the third network function;

[0060] The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request;

[0061] The first network function sends a signaling transmission indication to the second network function;

[0062] The second network function establishes signaling interaction with the third network function;

[0063] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0064] Optionally, the first network function interacts with the second network function via a service-based interface or a point-to-point interface; and / or

[0065] The first network function interacts with the third network function via a service-based interface or a point-to-point interface; and / or

[0066] The second network function interacts with the third network function via a service-based interface or a point-to-point interface.

[0067] Optionally, the establishing the first signaling includes:

[0068] The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes a second network function identifier or a second network function address;

[0069] The signaling transmission indication sent by the first network function to the second network function includes a third network function identifier or a third network function address;

[0070] The establishing of signaling interaction includes:

[0071] The second network function stores and applies the third network function identifier or the third network function address;

[0072] The second network function establishes a signaling interaction with the third network function.

[0073] Optionally, the operation further includes:

[0074] In a case where the second network function stores and applies the third network function identifier or the third network function address, the second network function establishes a data transmission channel with the third network function.

[0075] Optionally, the establishing the first signaling includes:

[0076] The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes one of a second network function identifier and a second network function address and one of a fourth network function identifier and a fourth network function address;

[0077] The signaling transmission indication sent by the first network function to the second network function includes one of a third network function identifier and a third network function address and one of a fourth network function identifier and a fourth network function address;

[0078] The establishing of signaling interaction includes:

[0079] The second network function stores and applies one of the third network function identifier and the third network function address and one of the fourth network function identifier and the fourth network function address;

[0080] The second network function establishes signaling interaction with the third network function and the fourth network function respectively.

[0081] Optionally, the operation further includes:

[0082] The second network function sends a third network function identifier or a third network function address to the fourth network function;

[0083] The fourth network function stores and applies the third network function identifier or the third network function address;

[0084] The fourth network function establishes a data transmission channel with the third network function.

[0085] Optionally, the second network function interacts with the fourth network function via a service-based interface or a point-to-point interface; and / or

[0086] The third network function interacts with the fourth network function via a service-based interface or a point-to-point interface.

[0087] Optionally, the operation further includes:

[0088] The first network function establishes a second signaling with a fifth network function according to the signaling transmission establishment request;

[0089] The fifth network function is a function in the core network, and the second signaling is signaling for interaction between the RAN and the core network.

[0090] Optionally, the first network function interacts with the fifth network function via a service-based interface or a point-to-point interface.

[0091] Optionally, the operation further includes:

[0092] When the second signaling is established between the first network function and the fifth network function, the first network function receives response information from the fifth network function.

[0093] Optionally, the operation further includes:

[0094] When the first network function and the UE establish the first signaling, the first network function receives response information from the UE.

[0095] Optionally, the operation further includes:

[0096] In a case where the first network function receives a request to modify, release or delete UE signaling, the first network function modifies, releases or deletes the first signaling and the second signaling.

[0097] Optionally, the operation further includes:

[0098] In a case where the first network function modifies, releases or deletes the second signaling, the first network function receives response information from the fifth network function.

[0099] In a fourth aspect, an embodiment of the present application provides a communication device based on a wireless access network architecture, which is applied to a UE. The device includes a memory, a transceiver, and a processor:

[0100] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0101] The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0102] In a case where the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane;

[0103] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0104] Optionally, the UE establishing signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane includes:

[0105] The UE establishes interaction with the second network function through the third network function according to the third network function identifier or the third network function address sent by the first network function to the second network function and stored and applied by the second network function.

[0106] Optionally, the operation further includes:

[0107] In a case where the second network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the second network function through the third network function.

[0108] Optionally, the operation further includes:

[0109] In a case where the second network function sends a third network function identifier or a third network function address to the fourth network function and the fourth network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the fourth network function through the third network function.

[0110] Optionally, when the first network function and the UE establish the first signaling, the UE sends response information to the first network function.

[0111] In a fifth aspect, an embodiment of the present application provides a communication device based on a wireless access network architecture, which is applied to a base station, and the device includes:

[0112] A receiving unit, configured for the first network function to receive a signaling transmission establishment request from the UE through a third network function;

[0113] A signaling establishment unit, configured for the first network function to establish a first signaling with the third network function according to the signaling transmission establishment request;

[0114] A sending unit, configured for the first network function to send a signaling transmission indication to a second network function;

[0115] a signaling interaction unit, configured to establish signaling interaction between the second network function and the third network function;

[0116] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0117] In a sixth aspect, an embodiment of the present application provides a communication device based on a wireless access network architecture, applied to a UE, the device comprising:

[0118] A sending unit, configured for the UE to send a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0119] a signaling interaction unit, configured to, when the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, establish signaling interaction between the UE and the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane;

[0120] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0121] In a seventh aspect, an embodiment of the present application provides a processor-readable storage medium, wherein the processor-readable storage medium stores a program, and the program is used to enable the processor to execute the above method.

[0122] The communication method, device and readable storage medium based on the wireless access network architecture provided by the embodiments of the present application, the RAN control plane includes a first network function and a second network function, the first network function and the second network function are independent of each other, compared with the existing gNB-CU-CP including all RAN control plane functions, the development complexity of the first network function and the second network function is reduced, and the independent development of each network function can further speed up the launch of base station services. For example, when the first network function is updated, the second network function is not affected, making it easy to update network characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0123] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0124] Figure 1 It is one of the flow charts of the communication method based on the wireless access network architecture provided in the embodiment of the present application;

[0125] Figure 2a This is the first architectural diagram form of the RAN architecture of the first embodiment of the present application;

[0126] Figure 2b This is the second architectural diagram form of the RAN architecture of the first embodiment of the present application;

[0127] Figure 2c This is the third architectural diagram form of the RAN architecture of the first embodiment of the present application;

[0128] Figure 3a This is the first architectural diagram form of the RAN architecture of the second embodiment of the present application;

[0129] Figure 3b This is the second architectural diagram form of the RAN architecture of the second embodiment of the present application;

[0130] Figure 3c This is the third architectural diagram form of the RAN architecture of the second embodiment of the present application;

[0131] Figure 4 This is the second flow chart of the communication method based on the wireless access network architecture provided in the embodiment of the present application;

[0132] Figure 5 It is the 6G distributed network architecture of the embodiment of the present application;

[0133] Figure 6 This is the third flow chart of the communication method based on the wireless access network architecture provided in the embodiment of the present application;

[0134] Figure 7It is one of the structural diagrams of a communication device based on a wireless access network architecture provided in an embodiment of the present application;

[0135] Figure 8 This is the second structural diagram of the communication device based on the wireless access network architecture provided in the embodiment of the present application;

[0136] Fig. 9 This is the third structural diagram of the communication device based on the wireless access network architecture provided in the embodiment of the present application;

[0137] Fig.10 This is the fourth structural diagram of the communication device based on the wireless access network architecture provided in the embodiment of the present application.

[0138] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0139] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0140] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0141] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0142] The embodiments of the present application provide a communication method, device and readable storage medium based on a wireless access network architecture, which are used to solve the technical problem that in the prior art, RAN can only deploy gNB-CU-CP that includes both supporting UE wireless connection management functions and supporting UE user plane data transmission management functions, resulting in high costs.

[0143] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0144] See also Figure 1 , Figure 1is a flow chart of a communication method applied to a base station provided in an embodiment of the present application, such as Figure 1 As shown, the method comprises the following steps:

[0145] S110: The first network function receives a signaling transmission establishment request from the UE through the third network function;

[0146] Specifically, the first network function includes one or more of the following functions: controlling the establishment, modification, release or deletion of access control, RRC (Radio Resource Control), paging, and mobility signaling between the UE and the wireless access network, and controlling the establishment, modification, release or deletion of access control, RRC, paging, and mobility signaling between the wireless access network and the core network (CN) in the wireless access network.

[0147] In some embodiments, the first network function includes a wireless connection management function, which may also be referred to as a wireless connection control function, a wireless mobility management function, a wireless mobility control function, a wireless access and mobility management function, a wireless access and mobility control function, a wireless connection registration mobility management function or a wireless connection registration mobility control function, etc., without limitation herein.

[0148] The third network function includes functions for transmitting UE control plane signaling, control plane data and user plane data, which includes RLC (Radio Link Control) entity, MAC (Media Access Control) entity and part or all of PHY (Physical) entity.

[0149] S120: The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request;

[0150] Specifically, the first signaling is an access layer signaling established between the RAN and the UE. The first network function can control the establishment, modification, release or deletion of the first signaling in the wireless access network, and can also control the establishment, modification, release or deletion of the first signaling in the UE. The first signaling includes but is not limited to the following: wireless access control, unlimited resource control, measurement configuration, data collection, switching decision, etc.

[0151] In some embodiments, establishing, modifying, releasing or deleting the first signaling in the wireless access network or UE may include establishing, modifying, releasing or deleting a processing entity or sub-signaling related to the first signaling in the wireless access network or UE. The processing entity related to the first signaling may be, for example, one of the following: PHY entity, RLC entity, PDCP (Packet Data Convergence Protocol) entity, RRC entity, etc. The sub-signaling related to the first signaling may be, for example, one of the following: bearer, F1AP (F1 Application Protocol / F1 interface application protocol), E1, Xn-U (user plane), Xn-C (control plane), registration, switching, etc.

[0152] S130: The first network function sends a signaling transmission instruction to the second network function;

[0153] Specifically, the signaling transmission indication sent by the first network function to the second network function includes a third network function identifier or a third network function address.

[0154] The second network function includes one or more of the following functions: UE wireless user plane transmission management, wireless bearer management, wireless network opening, wireless data management and other network functions, wherein the first network function and the second network function are independent network functions in the RAN control plane.

[0155] In some embodiments, the second network function includes a wireless user plane transmission management function, which may also be referred to as a wireless user plane transmission control function, a wireless bearer management function, a wireless bearer control function, a wireless session management function, a wireless session control function, a wireless session resource management function or a wireless session resource control function, without limitation herein.

[0156] S140: The second network function establishes signaling interaction with the third network function.

[0157] In the embodiment of the present application, the RAN network function may include other network functions in addition to the first network function, the second network function and the third network function, for example, it may also include a fourth network function, etc., which is not limited here.

[0158] The technical solution of the embodiment of the present application is further explained below based on different RAN architectures.

[0159] Embodiment 1

[0160] The RAN architecture includes a first network function, a second network function, a third network function and a fourth network function. The first network function includes a wireless connection management function, the second network function includes a wireless user plane transmission management function, the third network function is used to transmit UE control plane signaling, control plane data and user plane data, and it carries the functions of the RLC entity, the MAC entity and part or all of the PHY entities. Some physical layer functions may be some functions of the high-level physical layer. The fourth network function is mainly used for UE user plane data transmission, and it carries / supports / includes the functions of data encryption / decryption, integrity protection / verification, and mapping of user plane data to the base station protocol stack.

[0161] Figure 2a This is the first architectural diagram form of the RAN architecture under this embodiment, in which all network functions interact through point-to-point interfaces. Specifically, the first network function interacts with the second network function through a point-to-point interface, the first network function interacts with the third network function through a point-to-point interface, the second network function interacts with the third network function through a point-to-point interface, the second network function interacts with the fourth network function through a point-to-point interface, and the third network function interacts with the fourth network function through a point-to-point interface.

[0162] Figure 2b This is the second architectural diagram form of the RAN architecture under this embodiment, in which a part of network functions interact through a service-based interface, and another part of network functions interact through a point-to-point interface. Specifically, the first network function interacts with the second network function through a service-based interface, the first network function interacts with the third network function through a service-based interface, the second network function interacts with the third network function through a service-based interface, the second network function interacts with the fourth network function through a point-to-point interface, and the third network function interacts with the fourth network function through a point-to-point interface.

[0163] Figure 2c This is the third architectural diagram form of the RAN architecture under this embodiment, in which all network functions interact through service-based interfaces. Specifically, the first network function interacts with the second network function through a service-based interface, the first network function interacts with the third network function through a service-based interface, the second network function interacts with the third network function through a service-based interface, the second network function interacts with the fourth network function through a service-based interface, and the third network function interacts with the fourth network function through a service-based interface.

[0164] exist Figure 2a , 2bIn 2c, A1, A2, A3, A4 and A5 represent point-to-point interfaces, Nx, Ny, Nz and Nu represent service-based interfaces. In addition, the several architectures illustrated above are only exemplary, and any deformation of the interface should fall within the protection scope of the present application. The serviced network functions in the above architecture diagram interact with each other through serviced interfaces, the unserviced network functions interact with the serviced network functions through point-to-point interfaces, and the unserviced network functions interact with each other through point-to-point interfaces, for example Figure 2b In the embodiment, the fourth network function is a non-serviced network function, and the second network function and the third network function both interact with the fourth network function through a point-to-point interface.

[0165] In this embodiment, when the UE needs to access the network for signaling interaction, the UE accesses the wireless access network through the third network function, requests the first network function to establish a wireless resource connection, the UE completes the establishment of the wireless connection with the first network function, the first network function requests the third network function to establish a UE signaling context, the UE signaling context may carry a PLMN ID (Public Land Mobile Network ID), a second network function identifier and a fourth network function identifier, the first network function sends a signaling transmission indication to the second network function, the signaling transmission indication may carry the third network function identifier and the fourth network function identifier, establishes one or more bearers for the UE, the second network function requests the third network function to establish one or more data bearers of the UE, the second network function stores and applies the third network function identifier and the fourth network function identifier, thereby realizing that the second network function establishes signaling interaction with the third network function and the fourth network function respectively.

[0166] In the above, the identifier can be replaced by an address, for example, the second network function identifier, the third network function identifier and the fourth network function identifier can be replaced by the second network function address, the third network function address and the fourth network function address respectively.

[0167] In some embodiments, the second network function sends a third network function identifier or a third network function address to the fourth network function; the fourth network function stores and applies the third network function identifier or the third network function address; the fourth network function establishes a data transmission channel with the third network function, thereby realizing data transmission between the fourth network function and the third network function, and the fourth network function can also perform user plane data transmission with the UE through the third network function.

[0168] Optionally, when the first network function receives a request information for establishing, modifying, releasing or deleting UE signaling, the request information includes relevant registration type, slice information, AN parameters, security parameters, UE capability information, etc., wherein the request information for establishing or modifying UE signaling also includes a measurement report, and the UE signaling connection is established by, for example, RRC signaling. The first network function needs to control the establishment, modification, release or deletion of the first signaling, and control the establishment, modification, release or deletion of the second signaling in the wireless access network, wherein the second signaling is the signaling for interaction between RAN and the core network, and specifically, the first network function establishes the second signaling with the fifth network function according to the establishment information transmission request, wherein the fifth network function is a function in the core network.

[0169] The first network function determines the relevant information for establishing the first signaling and the relevant information for establishing the second signaling according to the request information for establishing the UE signaling; the first network function determines the relevant information for modifying the first signaling and the relevant information for modifying the second signaling according to the request information for modifying the UE signaling; the first network function determines the relevant information for releasing the first signaling and the relevant information for releasing the second signaling according to the request information for releasing the UE signaling; the first network function determines the relevant information for deleting the first signaling and the relevant information for deleting the second signaling according to the request information for deleting the UE signaling. In the above, the relevant information for establishing, modifying, releasing or deleting the first signaling includes one or more first signaling identifiers, wherein the relevant information for establishing or modifying the first signaling also indicates the values ​​of one or more related parameters of the first signaling, one of the third network function identifier and the third network function address, and one of the fourth network function identifier and the fourth network function address. The relevant information for establishing or modifying the second signaling also includes the fifth network function identifier or the fifth network function address, the target wireless access function, the transparent container from the source to the target, the switching flag, and the SM information.

[0170] The first network function sends a request message for establishing, modifying, releasing or deleting the first signaling to the third network function. In the above, one or more first signaling identifiers may be indicated in the request message for establishing, modifying, releasing or deleting, and the value of one or more parameters related to the first signaling, one of the second network function identifier and the second network function address, and one of the fourth network function identifier and the fourth network function address may also be indicated in the request message for establishing or modifying, wherein the value of one or more parameters related to the first signaling includes one or more of the following: one or more bearer mapping and forwarding control policy rules of the first signaling. The first signaling related parameters include one or more of the following: RRC connection and scheduling parameters (C-RNTI) of the first signaling, UE identification parameters (I-RNTI) in the RRC deactivated state, parameters for paging UE (S-TMSI), paging area parameters (RNA) of UE in the RRC deactivated state, etc.

[0171] The third network function establishes, modifies, releases or deletes the first signaling. Specifically, the third network function establishes, modifies, releases or deletes the RLC entity, MAC entity, bearer, physical channel and logical channel corresponding to the first signaling, and after receiving the relevant information for establishing or modifying the first signaling, the third network function determines the RLC entity, MAC entity, bearer, physical channel and logical channel according to the value of the first signaling related parameter. The third network function stores and applies the fourth network function identifier or the fourth network function address.

[0172] The third network function sends a response message to the first network function, and the response message may also include one or more of the following: one or more first signaling establishment or modification success or failure information, a third network function identifier, or a third network function address.

[0173] The first network function sends an establishment, modification, release or deletion indication information of the first signaling to the UE, where the indication information includes one or more first signaling identifiers. The one or more first signalings here may be the first signaling successfully established or modified in the wireless access network. The establishment or modification indication information may also indicate the values ​​of one or more related parameters of the first signaling. The values ​​of the related parameters of the one or more first signalings include bearer mappings, data bearers, forwarding control policy parameters, and values ​​of one or more security parameters of the first signaling.

[0174] The UE sends a first signaling establishment, modification, release or deletion response message to the first network function, and the response message may include one or more first signaling establishment success or failure information.

[0175] The first signaling is established between the UE, the third network function and the first network function, and the second signaling is established between the first network function and the core network. After the first signaling and the second signaling are established, the UE can transmit control information through the first signaling and the second signaling.

[0176] Embodiment 2

[0177] The RAN architecture includes a first network function, a second network function and a third network function. The first network function includes a wireless connection management function, the second network function includes a wireless user plane transmission management function, and the third network function is used to transmit UE control plane signaling, control plane data and user plane data. It carries the functions of RLC entity, MAC entity and part or all of PHY entity. Some physical layer functions may be some functions of the high-level physical layer. The second network function is also used for UE user plane data transmission, and it carries / supports / includes data encryption / decryption, integrity protection / verification, and user plane data to base station protocol stack mapping functions. Compared with the first embodiment, the second network function in the second embodiment is equivalent to the combination of the second network function and the fourth network function in the first embodiment.

[0178] Figure 3a This is the first architectural diagram form of the RAN architecture under this embodiment, in which all network functions interact through point-to-point interfaces. Specifically, the first network function interacts with the second network function through a point-to-point interface, the first network function interacts with the third network function through a point-to-point interface, and the second network function interacts with the third network function through a point-to-point interface.

[0179] Figure 3b This is the second architectural diagram form of the RAN architecture under this embodiment, in which a part of network functions interact through a service-based interface, and another part of network functions interact through a point-to-point interface. Specifically, the first network function interacts with the second network function through a service-based interface, the first network function interacts with the third function network through a point-to-point interface, and the second network function interacts with the third network function through a point-to-point interface.

[0180] Figure 3c This is the third architectural diagram form of the RAN architecture under this embodiment, in which all network functions interact through a service-based interface. Specifically, the first network function interacts with the second network function through a service-based interface, the first network function interacts with the third network function through a service-based interface, and the second network function interacts with the third network function through a service-based interface.

[0181] exist Figure 3a , 3b In 3c, A1, A2, A3, Nxz and Nyz represent point-to-point interfaces, Nx, Ny and Nz represent service-based interfaces. In addition, the several architectures illustrated above are only exemplary, and any deformation of the interface should fall within the scope of protection of this application. The serviced network functions in the above architecture diagram interact with each other through serviced interfaces, the unserviced network functions interact with the serviced network functions through point-to-point interfaces, and the unserviced network functions interact with each other through point-to-point interfaces, for example Figure 3b In the embodiment, the third network function is a non-serviced network function, and the first network function and the second network function both interact with the third network function through a point-to-point interface.

[0182] In this embodiment, when the UE needs to access the network for signaling interaction, the UE accesses the wireless access network through the third network function and requests the first network function to establish a wireless resource connection. The UE completes the establishment of a wireless connection with the first network function. The first network function requests the third network function to establish a UE signaling context, which may carry a PLMN ID (Public Land Mobile Network ID) and a second network function identifier. The first network function sends a signaling transmission indication to the second network function, which may carry a third network function identifier, to establish one or more bearers for the UE. The second network function requests the third network function to establish one or more data bearers for the UE. The second network function stores and applies the third network function identifier, thereby enabling the second network function to establish signaling interaction with the third network function.

[0183] In the above, the identifier may be replaced by an address, for example, the second network function identifier and the third network function identifier may be replaced by the second network function address and the third network function address, respectively.

[0184] In some embodiments, when the second network function stores and applies the third network function identifier or the third network function address, the second network function and the third network function establish a data transmission channel, thereby realizing data transmission between the second network function and the third network function, and the second network function can also perform user plane data transmission with the UE through the third network function.

[0185] Optionally, when the first network function receives a request to establish, modify, release or delete UE signaling, the request information includes relevant registration type, slice information, AN parameters, security parameters, UE capability information, etc., wherein the establishment or modification request information also includes a measurement report, and the UE signaling connection is established by, for example, RRC signaling. The first network function needs to control the establishment, modification, release or deletion of the first signaling, and control the establishment, modification, release or deletion of the second signaling in the wireless access network, wherein the second signaling is the signaling for interaction between RAN and the core network, and specifically, the first network function establishes the second signaling with the fifth network function according to the establishment information transmission request, wherein the fifth network function is a function in the core network.

[0186] The first network function determines the relevant information for establishing the first signaling and the relevant information for establishing the second signaling according to the request information for establishing the UE signaling; the first network function determines the relevant information for modifying the first signaling and the relevant information for modifying the second signaling according to the request information for modifying the UE signaling; the first network function determines the relevant information for releasing the first signaling and the relevant information for releasing the second signaling according to the request information for releasing the UE signaling; the first network function determines the relevant information for deleting the first signaling and the relevant information for deleting the second signaling according to the request information for deleting the UE signaling. In the above, the relevant information for establishing, modifying, releasing or deleting the first signaling includes one or more first signaling identifiers, wherein the relevant information for establishing or modifying the first signaling also indicates the values ​​of one or more related parameters of the first signaling, a third network function identifier or a third network function address, and the relevant information for establishing or modifying the second signaling also includes a fifth network function identifier or a fifth network function address, a target wireless access function, a source-to-target transparent container, a switching flag, and SM information.

[0187] The first network function sends a request message for establishing, modifying, releasing or deleting the first signaling to the third network function. In the above, one or more first signaling identifiers may be indicated in the establishment, modification, release or deletion request message, and the establishment or modification request message may also indicate the values ​​of one or more first signaling related parameters, the second network function identifier or the second network function address, wherein the values ​​of one or more first signaling related parameters include one or more of the following: one or more bearer mapping and forwarding control policy rules of the first signaling. The first signaling related parameters include one or more of the following: RRC connection and scheduling parameters (C-RNTI) of the first signaling, UE identification parameters (I-RNTI) in the RRC deactivated state, parameters for paging UE (S-TMSI), paging area parameters (RNA) of UE in the RRC deactivated state, etc.

[0188] The third network function establishes, modifies, releases or deletes the first signaling. Specifically, the third network function establishes, modifies, releases or deletes the RLC entity, MAC entity, bearer, physical channel and logical channel corresponding to the first signaling, and after receiving the relevant information for establishing or modifying the first signaling, the third network function determines the RLC entity, MAC entity, bearer, physical channel and logical channel according to the value of the first signaling related parameter. The third network function stores and applies the second network function identifier or the second network function address.

[0189] The third network function sends a response message to the first network function, and the response message may also include one or more of the following: one or more first signaling establishment or modification success or failure information, a third network function identifier, or a third network function address.

[0190] The first network function sends an establishment, modification, release or deletion indication information of the first signaling to the UE, where the indication information includes one or more first signaling identifiers. The one or more first signalings here may be the first signaling successfully established or modified in the wireless access network. The establishment or modification indication information may also indicate the values ​​of one or more related parameters of the first signaling. The values ​​of the related parameters of the one or more first signalings include bearer mappings, data bearers, forwarding control policy parameters, and values ​​of one or more security parameters of the first signaling.

[0191] The UE sends a first signaling establishment, modification, release or deletion response message to the first network function, and the response message may include one or more first signaling establishment success or failure information.

[0192] The first signaling is established between the UE, the third network function and the first network function, and the second signaling is established between the first network function and the core network. After the first signaling and the second signaling are established, the UE can transmit control information through the first signaling and the second signaling.

[0193] Embodiment 3

[0194] In this embodiment, based on the wireless access network architecture in the second embodiment, the fifth network function is a function in the core network, which is used to control / manage the second signaling of the UE, wherein the first network function and the fifth network function can interact through a service-based interface or through a point-to-point interface. In addition, the fifth network function may send information to the first network function directly or indirectly, and the indirect sending may be that the fifth network function forwards the information to the first network function through other network functions, and the first network function may send information to the fifth network function directly or indirectly, and the indirect sending may be that the first network function forwards the information to the fifth network function through other network functions.

[0195] See also Figure 4 , Figure 4 This is a flowchart of controlling / managing UE signaling transmission in this embodiment. When the wireless access network includes a first network function, the process of managing UE signaling transmission is as follows (it should be noted that the manner in which information is exchanged between network functions in the following process is not limited):

[0196] S1: The UE establishes a wireless connection with the first network function through the third network function;

[0197] S2: The UE initiates a request to the wireless access network to establish signaling transmission for mobility-related services, such as wireless connection, handover, RRC, paging, etc.

[0198] S3: The wireless access network receives the relevant service request, and the first network function and the third network function establish a UE signaling context, that is, a first signaling, also called SRB (Signalling Radio Bearer);

[0199] S4: The first network function sends a signaling transmission indication to the second network function, indicating that the UE has established a wireless connection, and the signaling transmission indication carries a third network function identifier or a third network function address;

[0200] S5: The second network function establishes a UE data context, i.e., DRB (Data Radio Bearer), to the third network function;

[0201] S6: The first network function initiates UE signaling context establishment to the fifth network function, which is mainly used for establishing the second signaling;

[0202] S7: The first signaling and the second signaling are established in the wireless access network. After the connection between the first signaling and the second signaling is established, the UE has accessed the network and can perform related services.

[0203] S8: The first network function controls the UE to establish a first signaling;

[0204] S9: The second signaling is established, and the fifth network function replies with an establishment response message to the first network function;

[0205] S10: The first network function sends a modification request message of the second signaling to the fifth network function, the fifth network function of the core network will change, and the first network function establishes a second signaling with the new fifth network function;

[0206] S11: The first network function modifies the first signaling and the second signaling;

[0207] S12: The first network function controls the UE to modify the first signaling;

[0208] S13: The second signaling modification is completed, and the fifth network function replies modification response information to the first network function;

[0209] S14: The first network function sends a release or deletion request message of the second signaling to the fifth network function, such as the fifth network function going offline;

[0210] S15: The first network function releases or deletes the first signaling and the second signaling;

[0211] S16: The first network function controls the UE to release or delete the first signaling;

[0212] S17: The second signaling is released or deleted, and the fifth network function replies with release or deletion response information to the first network function.

[0213] In the above, establishing, modifying, releasing or deleting the second signaling includes establishing, modifying, releasing or deleting a processing entity or sub-signaling related to the second signaling, and establishing or modifying the second signaling also includes storing and applying an address or identifier of a peer end of the second signaling. Establishing, modifying, releasing or deleting the second signaling in the wireless access network also includes applying the value of a parameter related to the second signaling to the processing entity or sub-signaling related to the second signaling.

[0214] The second signaling related parameters include one or more of the following: the second signaling is used to identify the AMF parameter (AMF Name), the identification parameter (SUPI) for identifying the UE in the core network, the parameter for identifying the wireless network function (gNB ID), the parameter for paging the UE (5GGUTI), the paging area parameter (TA) of the UE in the idle state, etc.

[0215] It should be noted that in the embodiments of the present application, the information of the same transmitting end and receiving end can be sent in the same message or in different messages. In addition, each step in the embodiments of the present application is not mandatory, and the steps in the embodiments are not limited to be executed in sequence. Some steps can be executed in parallel or in a different order. Other steps can be included between steps, and multiple sub-steps or multiple stages can be included. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0216] In an embodiment of the present application, a UE context is established, modified, released or deleted in the first network function: the UE context in the first network function includes a UE identifier, and identifiers, capabilities, base station identifiers, S-NSSAI (Single Network Slice Selection Assistance Information) of one or more network functions used for UE registration, etc.; a session type for UE session establishment, SSC mode (Session and Service Continuity mode), PDU Session ID (Protocol Data Unit session ID), a list of existing sessions, etc. Other network functions, for example, the second network function, may request the first network function to establish, modify, release or delete a UE context through a service-based interface of the first network function or a point-to-point interface between the first network function and the first network function, wherein the request information includes a UE identifier and an identifier or address of a network function in one or more wireless access networks for managing wireless mobility connections of the UE. After receiving the request information for establishing a UE context, the first network function stores the UE context. The first network function may send a response information for establishing a UE context, and the response information may include one or more of the following: information on success or failure in establishing a UE context, and an identifier of the UE in the first network function. After receiving the request information for modifying the UE context, the first network function modifies the network function in one or more wireless access networks associated with the UE for managing wireless mobility connections of the UE to the identifier or address in the request information. After receiving the request information for releasing or deleting the UE context, the first network function releases or deletes the context of the corresponding UE in the first network function.

[0217] In the above, the request information for establishing, modifying, releasing or deleting UE signaling resources may also be included in the UE context information and sent to the first network function together, or the request information for establishing, modifying, releasing or deleting UE user plane data transmission resources may also be sent to the first network function together with the UE context information. In one possible manner, the request information for releasing or deleting UE signaling resources and the UE context information are the same information.

[0218] After the first network function receives the request information for establishing, modifying, releasing or deleting UE signaling resources, it establishes, modifies, releases or deletes resources for the relevant signaling according to the content contained in the request information, including controlling the establishment, modification, release or deletion of the first signaling, and controlling the establishment, modification, release or deletion of the second signaling in the wireless access network.

[0219] The first network function sends a request message to the network function through one or more service-based interfaces of the network function for performing UE wireless connection management or a point-to-point interface between the first network function and the network function, wherein the request message includes a UE identifier, and the request message also includes one or more of the following information: establishing, modifying, releasing or deleting relevant information of the first signaling, establishing, modifying, releasing or deleting relevant information of the second signaling, establishing, modifying, releasing or deleting relevant information of the first signaling includes one or more first signaling identifiers, establishing or modifying the relevant information of the first signaling may also indicate the values ​​of one or more related parameters of the first signaling, establishing or modifying the relevant information of the first signaling may also include address information or identification information of other functions for performing UE wireless connection management in the wireless access network, which is equivalent to the address information or identification information of the opposite end of the first signaling, establishing, modifying, releasing or deleting the relevant information of the second signaling may include an identifier established by the UE signaling, establishing or modifying the relevant information of the second signaling also includes the address information or identification information of the opposite end of the second signaling, and in a possible manner, releasing or deleting the relevant information of the first signaling is the same information as the relevant information of the second signaling.

[0220] The base station involved in the embodiment of the present application may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The base station can be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. The base station may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0221] The embodiments of the present application are very suitable for 6G networks. The newly emerging services of 6G networks have personalized requirements. The network needs to have the ability to flexibly adapt to business requirements, realize on-demand customization of network functions, elastic and scalable network functions, and require more agile network service capabilities to meet the needs of rapid business launch. At the same time, the trend of 6G networks is a network architecture that combines centralized and distributed networks. Figure 5Taking the 6G distributed network architecture shown as an example, the 6G network will face the diversified scenarios and network performance requirements of air, sky, land and sea, and the centralized network architecture cannot uniformly meet all scenarios. To meet this challenge, the 6G network architecture needs to go beyond centralized control and gradually evolve to a distributed architecture. It will build distributed distributed network nodes with different functions. Multiple distributed network nodes form autonomous distributed micro-networks across domains according to business needs, and provide targeted network services according to specific business scenarios, user scale, geographical environment and other requirements. The 6G network will build distributed distributed network nodes with different functions. Distributed nodes with different functions will cause the differentiation of 6G RAN. The functions of 6G RAN also need to adapt to the functions of distributed nodes, and the functions of 6G RAN will be tailored, customized, and expanded on demand, or the functions of 6GRAN will be further integrated with the network functions of distributed nodes to meet the requirements of certain business extreme indicators. The embodiment of the present application can meet the needs of rapid launch of RAN services, on-demand customization of network functions, elastic and scalable network functions, and further integration of RAN and core network functions.

[0222] Figure 6 is a flow chart of a communication method applied to a UE provided in an embodiment of the present application, such as Figure 6 As shown, the method comprises the following steps:

[0223] S210: The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0224] S220: When the first network function establishes the first signaling with the third network function according to the signaling transmission request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission instruction sent by the first network function to the second network function of the RAN control plane;

[0225] In the above, the first signaling is the access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0226] In some embodiments, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane, including: the UE establishes interaction with the second network function through the third network function according to the third network function identifier or third network function address sent by the first network function to the second network function and stored and applied in the second network function.

[0227] In some embodiments, the method further includes: when the second network function stores and applies a third network function identifier or a third network function address, the UE establishes a data transmission channel with the second network function through the third network function.

[0228] In some embodiments, the method also includes: when the second network function sends a third network function identifier or a third network function address to the fourth network function and the fourth network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the fourth network function through the third network function.

[0229] In some embodiments, when the first network function and the UE establish the first signaling, the UE sends response information to the first network function.

[0230] The UE (User Equipment) involved in the embodiments of the present application may be a USB storage device, other personal computer memory devices and a dongle, and may also communicate with one or more core networks (CN) via a radio access network (RAN). The UE may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with a radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablet computers, Machine-type Communication (MTC) terminal devices and other devices. UE may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, a user device, and a wireless access point and a router / modem that meet the limitations of this definition, etc., but is not limited in the embodiments of the present application.

[0231] Figure 7 7 is a schematic diagram of a communication device provided in an embodiment of the present application, which is applied to a base station. The communication device includes: a processor 700, which is used to read a program in a memory 720 and execute the following process:

[0232] The first network function receives a signaling transmission establishment request from the UE through the third network function;

[0233] The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request;

[0234] The first network function sends a signaling transmission indication to the second network function;

[0235] The second network function establishes signaling interaction with the third network function;

[0236] In the above, the first signaling is the access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0237] The transceiver 710 is configured to receive and send data under the control of the processor 700 .

[0238] Among them, Figure 7 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 710 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 when performing operations.

[0239] The processor 700 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0240] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0241] Figure 8 8 is a schematic diagram of a communication device provided in an embodiment of the present application, which is applied to a UE. The communication device includes a processor 800, which is used to read a program in a memory 820 and perform the following processes:

[0242] The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0243] In a case where the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane;

[0244] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0245] The transceiver 810 is configured to receive and send data under the control of the processor 800 .

[0246] Among them, Figure 8 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 800 and various circuits of memory represented by memory 820 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 810 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables and other transmission media. For different user devices, the user interface 830 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0247] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0248] Optionally, the processor 810 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0249] The processor 800 is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the program stored in the memory. The processor 800 and the memory 820 can also be arranged physically separately.

[0250] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0251] See also Fig. 9 The embodiment of the present application provides a communication device based on a wireless access network architecture, which is applied to a base station, and the device includes:

[0252] A receiving unit 901 is configured to receive, by a first network function, a signaling transmission establishment request from a UE through a third network function;

[0253] A signaling establishment unit 902, configured for the first network function to establish a first signaling with a third network function according to a signaling transmission establishment request;

[0254] A sending unit 903, configured for the first network function to send a signaling transmission indication to the second network function;

[0255] A signaling interaction unit 904, configured to establish signaling interaction between the second network function and the third network function;

[0256] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0257] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0258] See also Fig.10 The embodiment of the present application provides a communication device based on a wireless access network architecture, which is applied to a UE, and the device includes:

[0259] The sending unit 1001 is configured for the UE to send a signaling transmission establishment request to the first network function of the RAN control plane through the third network function;

[0260] The signaling interaction unit 1002 is configured to establish a signaling interaction with the second network function through the third network function according to a signaling transmission instruction sent by the first network function to the second network function of the RAN control plane when the first network function establishes a first signaling with the third network function according to a signaling transmission request;

[0261] The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

[0262] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0263] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0264] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application.

[0265] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0266] The embodiment of the present application also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned communication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0267] It should be noted that, in this application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0268] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A communication method based on a wireless access network architecture, characterized in that: Applied to a base station, the method comprises: The first network function receives a signaling transmission establishment request from the user terminal UE through the third network function; The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request; The first network function sends a signaling transmission indication to the second network function; The second network function establishes signaling interaction with the third network function; The first signaling is access layer signaling established between the radio access network RAN ​​and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

2. The communication method according to claim 1, characterized in that: The first network function interacts with the second network function via a service-based interface or a point-to-point interface; and / or The first network function interacts with the third network function via a service-based interface or a point-to-point interface; and / or The second network function interacts with the third network function via a service-based interface or a point-to-point interface.

3. The communication method according to claim 1, characterized in that: The establishing of the first signaling comprises: The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes a second network function identifier or a second network function address; The signaling transmission indication sent by the first network function to the second network function includes a third network function identifier or a third network function address; The establishing of signaling interaction includes: The second network function stores and applies the third network function identifier or the third network function address; The second network function establishes a signaling interaction with the third network function.

4. The communication method according to claim 3, characterized in that: The method further includes: In a case where the second network function stores and applies the third network function identifier or the third network function address, the second network function establishes a data transmission channel with the third network function.

5. The communication method according to claim 1, characterized in that: The establishing of the first signaling comprises: The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes one of a second network function identifier and a second network function address and one of a fourth network function identifier and a fourth network function address; The signaling transmission indication sent by the first network function to the second network function includes one of a third network function identifier and a third network function address and one of a fourth network function identifier and a fourth network function address; The establishing of signaling interaction includes: The second network function stores and applies one of the third network function identifier and the third network function address and one of the fourth network function identifier and the fourth network function address; The second network function establishes signaling interaction with the third network function and the fourth network function respectively.

6. The communication method according to claim 5, characterized in that: The method further includes: The second network function sends a third network function identifier or a third network function address to the fourth network function; The fourth network function stores and applies the third network function identifier or the third network function address; The fourth network function establishes a data transmission channel with the third network function.

7. The communication method according to claim 5, characterized in that: The second network function interacts with the fourth network function via a service-based interface or a point-to-point interface; and / or The third network function interacts with the fourth network function via a service-based interface or a point-to-point interface.

8. The communication method according to claim 1, characterized in that: The method further includes: The first network function establishes a second signaling with a fifth network function according to the signaling transmission establishment request; The fifth network function is a function in the core network, and the second signaling is signaling for interaction between the RAN and the core network.

9. The communication method according to claim 8, characterized in that: The first network function interacts with the fifth network function through a service-based interface or a point-to-point interface.

10. The communication method according to claim 8, characterized in that: The method further includes: When the second signaling is established between the first network function and the fifth network function, the first network function receives response information from the fifth network function.

11. The communication method according to claim 1, characterized in that: The method further includes: When the first network function and the UE establish the first signaling, the first network function receives response information from the UE.

12. The communication method according to claim 8, characterized in that: The method further includes: In a case where the first network function receives a request to modify, release or delete UE signaling, the first network function modifies, releases or deletes the first signaling and the second signaling.

13. The communication method according to claim 12, characterized in that: The method further includes: In a case where the first network function modifies, releases or deletes the second signaling, the first network function receives response information from the fifth network function.

14. A communication method based on a wireless access network architecture, characterized in that: Applied to UE, the method includes: The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function; In a case where the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane; The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

15. The communication method according to claim 14, characterized in that: The UE establishing signaling interaction with the second network function through the third network function according to the signaling transmission instruction sent by the first network function to the second network function of the RAN control plane includes: The UE establishes interaction with the second network function through the third network function according to the third network function identifier or the third network function address sent by the first network function to the second network function and stored and applied by the second network function.

16. The communication method according to claim 15, characterized in that: The method further includes: In a case where the second network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the second network function through the third network function.

17. The communication method according to claim 15, characterized in that: The method further includes: In a case where the second network function sends a third network function identifier or a third network function address to the fourth network function and the fourth network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the fourth network function through the third network function.

18. The communication method according to claim 14, characterized in that: When the first network function and the UE establish the first signaling, the UE sends response information to the first network function.

19. A communication device based on a wireless access network architecture, characterized in that: Applied to a base station, the device includes a memory, a transceiver, and a processor: a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: The first network function receives a signaling transmission establishment request from the UE through the third network function; The first network function establishes a first signaling with the third network function according to the signaling transmission establishment request; The first network function sends a signaling transmission indication to the second network function; The second network function establishes signaling interaction with the third network function; The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

20. The communication device according to claim 19, characterized in that The first network function interacts with the second network function via a service-based interface or a point-to-point interface; and / or The first network function interacts with the third network function via a service-based interface or a point-to-point interface; and / or The second network function interacts with the third network function via a service-based interface or a point-to-point interface.

21. The communication device according to claim 19, characterized in that: The establishing of the first signaling comprises: The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes a second network function identifier or a second network function address; The signaling transmission indication sent by the first network function to the second network function includes a third network function identifier or a third network function address; The establishing of signaling interaction includes: The second network function stores and applies the third network function identifier or the third network function address; The second network function establishes a signaling interaction with the third network function.

22. The communication device according to claim 21, characterized in that The operations also include: In a case where the second network function stores and applies the third network function identifier or the third network function address, the second network function establishes a data transmission channel with the third network function.

23. The communication device according to claim 19, characterized in that The establishing of the first signaling comprises: The first network function requests the third network function to establish a UE signaling context, where the UE signaling context includes one of a second network function identifier and a second network function address and one of a fourth network function identifier and a fourth network function address; The signaling transmission indication sent by the first network function to the second network function includes one of a third network function identifier and a third network function address and one of a fourth network function identifier and a fourth network function address; The establishing of signaling interaction includes: The second network function stores and applies one of the third network function identifier and the third network function address and one of the fourth network function identifier and the fourth network function address; The second network function establishes signaling interaction with the third network function and the fourth network function respectively.

24. The communication device according to claim 23, characterized in that The operations also include: The second network function sends a third network function identifier or a third network function address to the fourth network function; The fourth network function stores and applies the third network function identifier or the third network function address; The fourth network function establishes a data transmission channel with the third network function.

25. The communication device according to claim 23, characterized in that The second network function interacts with the fourth network function via a service-based interface or a point-to-point interface; and / or The third network function interacts with the fourth network function via a service-based interface or a point-to-point interface.

26. The communication device according to claim 19, characterized in that The operations also include: The first network function establishes a second signaling with a fifth network function according to the signaling transmission establishment request; The fifth network function is a function in the core network, and the second signaling is signaling for interaction between the RAN and the core network.

27. The communication device according to claim 26, characterized in that The first network function interacts with the fifth network function through a service-based interface or a point-to-point interface.

28. The communication device according to claim 26, characterized in that The operations also include: When the second signaling is established between the first network function and the fifth network function, the first network function receives response information from the fifth network function.

29. The communication device according to claim 19, characterized in that The operations also include: When the first network function and the UE establish the first signaling, the first network function receives response information from the UE.

30. The communication device according to claim 26, characterized in that The operations also include: In a case where the first network function receives a request to modify, release or delete UE signaling, the first network function modifies, releases or deletes the first signaling and the second signaling.

31. The communication device according to claim 30, characterized in that: The operations also include: In a case where the first network function modifies, releases or deletes the second signaling, the first network function receives response information from the fifth network function.

32. A communication device based on a wireless access network architecture, characterized in that: Applied to UE, the device includes a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: The UE sends a signaling transmission establishment request to the first network function of the RAN control plane through the third network function; In a case where the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, the UE establishes signaling interaction with the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane; The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

33. The communication device according to claim 32, characterized in that: The UE establishing signaling interaction with the second network function through the third network function according to the signaling transmission instruction sent by the first network function to the second network function of the RAN control plane includes: The UE establishes interaction with the second network function through the third network function according to the third network function identifier or the third network function address sent by the first network function to the second network function and stored and applied by the second network function.

34. The communication device according to claim 33, characterized in that The operations also include: In a case where the second network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the second network function through the third network function.

35. The communication device according to claim 33, characterized in that The operations also include: In a case where the second network function sends a third network function identifier or a third network function address to the fourth network function and the fourth network function stores and applies the third network function identifier or the third network function address, the UE establishes a data transmission channel with the fourth network function through the third network function.

36. The communication device according to claim 32, characterized in that When the first network function and the UE establish the first signaling, the UE sends response information to the first network function.

37. A communication device based on a wireless access network architecture, characterized in that: Applied to a base station, the device comprises: A receiving unit, configured for the first network function to receive a signaling transmission establishment request from the UE through a third network function; A signaling establishment unit, configured for the first network function to establish a first signaling with the third network function according to the signaling transmission establishment request; A sending unit, configured for the first network function to send a signaling transmission indication to a second network function; a signaling interaction unit, configured to establish signaling interaction between the second network function and the third network function; The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

38. A communication device based on a wireless access network architecture, characterized in that: Applied to UE, the device includes: A sending unit, configured for the UE to send a signaling transmission establishment request to the first network function of the RAN control plane through the third network function; a signaling interaction unit, configured to, when the first network function establishes the first signaling with the third network function according to the signaling transmission establishment request, establish signaling interaction between the UE and the second network function through the third network function according to the signaling transmission indication sent by the first network function to the second network function of the RAN control plane; The first signaling is access layer signaling established between the RAN and the UE, and the first network function and the second network function are independent network functions in the RAN control plane.

39. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a program, and the program is used to enable the processor to execute the method according to any one of claims 1 to 18.

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