Method and apparatus used in wireless communications

Abstract

Disclosed in the present application are a method and apparatus used in wireless communications. The method comprises: a first base station receiving first signaling, the first signaling indicating that a sender of the first signaling is collocated with a first server, wherein the sender of the first signaling is a base station, the first server is associated with a first UE, and the first UE camps on a cell of the first base station. The present application helps to enhance data exchange between a UE server and a network, improve the diversity and perfection of data of the UE server or the network, and improve the service performance of the UE server or the network.

Description

A method and apparatus for wireless communication

[0001] This application claims priority to Chinese Patent Application No. 202411819047.0, filed on December 10, 2024, entitled "A Method and Apparatus for Wireless Communication", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to a method and apparatus in a wireless communication system, and more particularly to a scheme and apparatus in a wireless communication system in which a server on the user equipment side is co-located with the base station side. Background Technology

[0003] With the adoption of new technologies, the increase in the number of antennas, the diversification of application scenarios, and the increasing demands on system performance, traditional measurement and reporting methods incur significant redundancy overhead. Therefore, in NR (New Radio) Rel-18 (Release-18), research on AI (Artificial Intelligence) / ML (Machine Learning) technologies was initiated to explore their impact on system performance and design. Compared to traditional processing methods, AI / ML offers advantages such as training-based and deployment-required features. Based on current research progress, AI / ML models on the UE (User Equipment) side can be trained and stored on the UE's dedicated server.

[0004] In future 6G communications, AI / ML technologies may also play an important role. According to 3GPP (3rd Generation Partnership Project) standard TS (Technical Specification) 38.300, AI / ML models and algorithms are beyond the scope of 3GPP. Summary of the Invention

[0005] The applicant's research found that when AI / ML functions are introduced, the network serving the UE may not be able to discover the UE's dedicated server when the UE's dedicated server is colocated with the base station, which is not conducive to improving the performance of deploying AI / ML functions in the 3GPP system.

[0006] To address the aforementioned problems, this application discloses a solution. It should be noted that while many embodiments of this application are geared towards AI / ML, this application is also applicable to other solutions, such as edge computing. Although the specification of this application involves descriptions of some AI / ML models and algorithms, those skilled in the art will understand that these descriptions are not essential or irreplaceable for solutions related to wireless cellular communication. Furthermore, adopting a unified solution across different scenarios helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the first base station of this application can be applied to the second base station, and vice versa. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0007] Where necessary, the interpretation of the terminology in this application shall refer to the definitions of the 3GPP TS38 series of specifications; or, refer to the definitions of the 3GPP TS22 series of specifications; or, refer to the definitions of the 3GPP TS23 series of specifications; or, refer to the definitions of the 3GPP TS24 series of specifications.

[0008] This application discloses a method used in a first base station for wireless communication, characterized by comprising:

[0009] Receive a first signaling message, the first signaling message indicating that the sender of the first signaling message is concurred with the first server;

[0010] In this context, the sender of the first signaling is a base station; the first server is associated with a first UE, and the first UE resides in the cell of the first base station.

[0011] In the above method, the instruction of the first signaling enables the first base station to obtain the base station information co-located with the first server, which is conducive to the first base station establishing an association with the first server, strengthening the data interaction between the UE server and the network, improving the diversity and completeness of the data of the UE server or the network, and improving the service performance of the UE server or the network.

[0012] Specifically, according to one aspect of this application, the above method is characterized in that the indication of the first signaling depends on the identifier of the first UE.

[0013] In the above aspects, the identification of the first UE can improve the efficiency of the first base station in receiving the first signaling and enable the first base station to know the association between the first server and the first UE, which is conducive to improving the fineness of the data interaction granularity between the network and the UE server.

[0014] Specifically, according to one aspect of this application, the above method is characterized in that the indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

[0015] The above aspects are conducive to improving the accuracy and necessity of the first base station receiving the first signaling.

[0016] Specifically, according to one aspect of this application, the above method is characterized by comprising:

[0017] Send a second signaling message, which indicates the identifier of the first server.

[0018] In the above aspects, the indication of the second signaling helps the recipient of the second signaling to know the association between the first base station or the first UE and the first server, and to respond accordingly to the association, thereby improving the continuity and completeness of data interaction between the UE server and the network.

[0019] Specifically, according to one aspect of this application, the above method is characterized in that the identifier of the first server is included in a container.

[0020] The above aspects can transparently forward the identifier of the first server through the interface in the existing standard, which helps to reduce the influence of the standard and the complexity of implementation.

[0021] Specifically, according to one aspect of this application, the above method is characterized in that the second signaling instructs the establishment of an association with the first server.

[0022] The above aspects are conducive to realizing the connection between the network serving the first UE and the first server, ensuring that the two can exchange data, and improving the performance of the network and the UE server.

[0023] Specifically, according to one aspect of this application, the above method is characterized in that the association depends on the first UE.

[0024] The above aspects are conducive to further realizing UE-level association management based on the establishment of an association between the network serving the first UE and the first server.

[0025] Specifically, according to one aspect of this application, the above method is characterized by comprising:

[0026] Receive a third signaling message, the third signaling message indicating the identifier to be sent to the first server.

[0027] The above aspects help reduce the processing complexity and power consumption of the first base station sending the second signaling, and improve the accuracy of the first base station sending the second signaling.

[0028] This application discloses a method used in a second base station for wireless communication, characterized by comprising:

[0029] Send a first signaling message, the first signaling message instructing the second base station to be co-located with the first server;

[0030] In this context, the recipient of the first signaling is a base station; the first server is associated with a first UE, and the first UE resides in the cell of the recipient of the first signaling.

[0031] Specifically, according to one aspect of this application, the above method is characterized in that the indication of the first signaling depends on the identifier of the first UE.

[0032] Specifically, according to one aspect of this application, the above method is characterized in that the indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

[0033] Specifically, according to one aspect of this application, the above method is characterized by comprising:

[0034] Receive a second signaling message, which indicates the identifier of the first server.

[0035] Specifically, according to one aspect of this application, the above method is characterized in that the identifier of the first server is included in a container.

[0036] Specifically, according to one aspect of this application, the above method is characterized in that the second signaling instructs the establishment of an association with the first server.

[0037] Specifically, according to one aspect of this application, the above method is characterized in that the association depends on the first UE.

[0038] Specifically, according to one aspect of this application, the above method is characterized by comprising:

[0039] Send a third signaling message, the third signaling message indicating that the identifier of the first server is to be sent.

[0040] This application discloses a first base station used for wireless communication, characterized in that it includes:

[0041] The first base station includes: one or more processors and a memory;

[0042] The memory is coupled to the one or more processors and is used to store computer program code, the computer program code including computer instructions, which the one or more processors invoke to cause the first base station to perform a method used in a first base station for wireless communication.

[0043] This application discloses a second base station used for wireless communication, characterized in that it includes:

[0044] The second base station includes: one or more processors and memory;

[0045] The memory is coupled to the one or more processors and is used to store computer program code, the computer program code including computer instructions, which the one or more processors invoke to cause the second base station to perform the method in a second base station used for wireless communication. Attached Figure Description

[0046] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0047] Figure 1 shows a flowchart of communication of a first base station according to an embodiment of this application;

[0048] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0049] Figure 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application;

[0050] Figure 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of this application;

[0051] Figure 5 illustrates a transmission flowchart between a first base station and a second base station according to an embodiment of this application;

[0052] Figure 6 illustrates a flowchart showing that the indication of the first signaling according to an embodiment of the present application depends on the area identifier of the cell where the first UE is camped;

[0053] Figure 7 shows a transmission flowchart of a first base station sending a second signaling to a third node according to an embodiment of this application;

[0054] Figure 8 shows a transmission flowchart of a first base station receiving third signaling from a third node according to an embodiment of this application;

[0055] Figure 9 shows a device structure diagram of a network node 900 according to an embodiment of this application;

[0056] Figure 10 shows a structural block diagram of a processing apparatus for a first base station according to an embodiment of the present application;

[0057] Figure 11 shows a structural block diagram of a processing apparatus for a second base station according to an embodiment of the present application. Detailed Implementation

[0058] The technical solutions of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Considering performance, flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, including but not limited to the embodiments in Figure 1 and the embodiments in Figures 5-8, the embodiments in Figure 5 and the embodiments in Figures 6-8, etc.

[0059] Example 1

[0060] Example 1 illustrates a flowchart of communication of a first base station according to an embodiment of the present application, as shown in Figure 1.

[0061] In Embodiment 1, the first base station 100 receives a first signaling in step 101, the first signaling indicating that the sender of the first signaling is collocated with the first server; wherein, the sender of the first signaling is the base station; the first server is associated with a first UE, and the first UE is camped in the cell of the first base station.

[0062] As an example, the first base station is an NG-RAN (Next Generation Radio Access Network) node.

[0063] As one example, the NG-RAN node is a radio access network device.

[0064] As an example, the sender of the first signaling is an NG-RAN node.

[0065] As an example, the first signaling is an AP (Application Protocol) related message or IE (Information Element).

[0066] As an example, the first signaling is an XnAP Message or an IE in an XnAP Message.

[0067] As an example, the first signaling is UE-associated.

[0068] As an example, the first signaling is not associated with the UE.

[0069] As an example, the first signaling is related to AI / ML.

[0070] As an example, the first signaling includes an "AI / ML" field.

[0071] As one example, the first signaling includes a "Server" field.

[0072] As an example, the first signaling is related to the elementary procedure.

[0073] As an example, the basic process is defined in 3GPP TS 38.423.

[0074] As one example, the first signaling is associated with an interface.

[0075] As an example, the first signaling is associated with a global procedure.

[0076] As an example, the first signaling is related to the update process.

[0077] As an example, the first signaling is associated with a completely new process.

[0078] As an example, the first signaling is an Xn Setup Request message.

[0079] As an example, the first signaling is the IE in the Xn establishment request message.

[0080] As an example, the first signaling is an NG-RAN Node Configuration Update message.

[0081] As an example, the first signaling is the IE in the NG-RAN node configuration update message.

[0082] As an example, the first server is a dedicated server.

[0083] As an example, the first server is an OTT (Over The Top, cloud) server.

[0084] As one example, the first server is a user equipment.

[0085] As one example, the user equipment is a terminal.

[0086] As one example, the first server is located on the user equipment side.

[0087] As one example, the first server is provided by the manufacturer of the user equipment.

[0088] As an example, the first server hosting is based on an AI / ML application or service.

[0089] As an example, the fact that the sender of the first signaling is co-located with the first server means that the sender of the first signaling and the first server are located in the same node.

[0090] As an example, the coexistence of the sender of the first signaling and the first server means that the sender of the first signaling and the first server are different entities or different functions within the same node.

[0091] As an example, the sender of the first signaling being co-located with the first server means that the sender of the first signaling and the first server use the same communication address.

[0092] As an example, the communication address is a transport network layer address.

[0093] As an example, the communication address is an IP (Internet Protocol) address.

[0094] As one embodiment, the communication address is the address of the sender of the first signaling.

[0095] As an example, the fact that the sender of the first signaling is co-located with the first server means that the sender of the first signaling is a proxy for the first server to communicate with other nodes.

[0096] As an example, the first UE is a user equipment.

[0097] As an example, the cell in which the first UE camps on the first base station is the serving cell of the first UE.

[0098] As an example, some non-limiting examples are given below regarding the first signaling instructing the sender of the first signaling to coexist with the first server.

[0099] Typically, but not limitingly, the first signaling includes bit information, where a bit value of "0" indicates that the sender of the first signaling is not contiguous with the first server; and a bit value of "1" indicates that the sender of the first signaling is contiguous with the first server.

[0100] Typically, but not limitingly, the first signaling includes Boolean information: a Boolean value of "False" indicates that the sender of the first signaling is not contiguous with the first server; a Boolean value of "True" indicates that the sender of the first signaling is contiguous with the first server.

[0101] Typically, but not limitingly, the first signaling includes enumeration value information; for example, an enumeration value of “Collocated with UE server” indicates that the sender of the first signaling is collocated with the first server, and this enumeration value is only present when the sender of the first signaling is collocated with the first server.

[0102] As an example, the first signaling is received only when the first base station and the first server are not co-located.

[0103] The above embodiments help to avoid the unnecessary use of the first signaling indication and save network signaling overhead.

[0104] As one example, the first base station and the first server are not located side-by-side.

[0105] As an example, the first server being associated with the first UE means that the first server is on the side of the first UE.

[0106] As an example, the first server being associated with the first UE means that the first server is provided by the manufacturer of the first UE.

[0107] As an example, the first server being associated with the first UE means that the first server hosts AI / ML-based applications or services for the first UE.

[0108] As an example, the first server being associated with the first UE means that the first server hosts the user equipment-side AI / ML model of the first UE.

[0109] As an example, the first server being associated with the first UE means that the first server is responsible for training the user equipment-side AI / ML model of the first UE.

[0110] As an example, the training includes at least one of validation and testing.

[0111] As an example, the first server being associated with the first UE means that the first server is responsible for the inference of the AI / ML model on the user equipment side of the first UE.

[0112] As an example, the first server being associated with the first UE means that the first server contains an AI / ML model available to the first UE.

[0113] As an example, the first server being associated with the first UE means that the first server determines the AI / ML operation of the first UE.

[0114] As an example, the first server being associated with the first UE means that there is communication between the first server and the first UE.

[0115] As an example, the first server being associated with the first UE means that the first server supports the transmission of AI / ML related data with the first UE.

[0116] As an example, the AI / ML related data includes at least one of training data, monitoring data, and inference data.

[0117] As an example, the AI / ML related data refers to the AI / ML model being delivered.

[0118] Example 2

[0119] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in Figure 2.

[0120] Figure 2 illustrates the network architecture 200. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or a 5G+ network architecture, or a 6G network architecture, or a network architecture adopted in the future evolution of 3GPP; the network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System), or 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203. The RAN may also include other nodes 204. Node 203 provides user and control plane protocol termination toward UE 201. Node 203 may be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver node), or some other suitable term. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides UE 201 with an access point to the core network 210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, mobile terminals (MTs) in relay equipment, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes an MME (Mobility Management Entity) / AMF (Access and Mobility Management Function) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213, as well as other nodes not shown in Figure 2. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW / UPF 213 provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0121] As one embodiment, the first base station includes the node 203.

[0122] As one embodiment, the second base station includes the other node 204.

[0123] As an example, the other node 204 is co-located with the UE server.

[0124] As one example, the other node 204 includes a UE server.

[0125] As one example, the UE server is a dedicated server for the UE.

[0126] As an example, the UE server is an OTT server.

[0127] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0128] Example 3

[0129] Example 3 illustrates a schematic diagram of an embodiment of the wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in Figure 3. Figure 3 is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and control plane 300. It should be noted that Figure 3 is mainly aimed at the 5G / NR system standard, but some or all aspects of Figure 3 can also be applied to other wireless communication network systems.

[0130] The PHY (Physical) sublayer 301 can transmit and receive physical layer signals, which can be received from or transmitted to one or more other communication devices. Physical layer signals may include one or more physical channels. The PHY sublayer 301 can also perform link adaptation or AMC (Adaptive Modulation and Coding), power control, cell search (e.g., for initial synchronization and handover purposes), and other measurements used by higher layers (e.g., RRC (Radio Resource Control) sublayer 315). The PHY sublayer 301 can further perform error detection on the transport channel, FEC (Forward Error Correction) encoding / decoding of the transport channel, modulation / demodulation of the physical channel, interleaving, rate matching, mapping to the physical channel, and MIMO (Multiple Input Multiple Output) antenna processing. In an embodiment, an instance of the PHY sublayer 301 can process requests from an instance of the MAC (Medium Access Control) sublayer 302 and provide it with instructions. According to some implementation schemes, the requests and instructions sent by the PHY sublayer 301 to the MAC sublayer 302 may include one or more transport channels.

[0131] An instance of MAC sublayer 302 can process requests from an instance of RLC (Radio Link Control) sublayer 303 and provide it with instructions. These requests and instructions sent by MAC sublayer 302 to RLC sublayer 303 may include one or more logical channels. MAC sublayer 302 can perform mapping between logical channels and transport channels, multiplexing MACSDUs (Service Data Units) from one or more logical channels onto a TB (Transport Block) to be delivered to PHY sublayer 301 via the transport channel, demultiplexing MACSDUs from a TB delivered from PHY sublayer 301 via the transport channel onto one or more logical channels, multiplexing MACSDUs onto TBs, scheduling information reporting, error correction via HARQ (Hybrid Automatic Repeat Request), and prioritizing logical channels.

[0132] An instance of RLC sublayer 303 can process requests from an instance of PDCP (Packet Data Convergence Protocol) sublayer 304 and provide it with instructions. These requests and instructions sent by RLC sublayer 303 to PDCP sublayer 304 may include one or more logical channels. RLC sublayer 303 can operate in several modes, including: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM). RLC sublayer 303 can perform transmission of upper-layer PDUs (Protocol Data Units), error correction via ARQ (Automatic Repeat Request) for AM data transmission, and concatenation, segmentation, and reassembly of RLC SDUs for UM and AM data transmission. RLC sublayer 303 can also re-segment RLC data PDUs used for AM data transmission, reorder RLC data PDUs used for UM and AM data transmission, detect duplicate data used for UM and AM data transmission, discard RLC SDUs used for UM and AM data transmission, detect protocol errors used for AM data transmission, and perform RLC re-establishment.

[0133] An instance of PDCP sublayer 304 can handle requests from instances of RRC sublayer 315 and / or SDAP (Service Data Adaptation Protocol) sublayer 325 and provide them with instructions. These requests and instructions sent by PDCP sublayer 304 to SDAP sublayer 325 may include one or more RBs (Radio Bearers). PDCP sublayer 304 can perform header compression and decompression of IP data, maintain PDCP SN (Sequence Number), perform sequential delivery of upper-layer PDUs during lower-layer re-establishment, eliminate duplication of lower-layer SDUs during lower-layer re-establishment of radio bearers mapped on RLC AM, encrypt and decrypt control plane data, perform integrity protection and integrity verification on control plane data, control timer-based data discarding, and perform security operations (e.g., encryption, decryption, integrity protection, integrity verification, etc.).

[0134] An instance of SDAP sublayer 325 can process requests from one or more higher-layer protocol entities and provide them with indications. These requests and indications sent by SDAP sublayer 325 to higher-layer protocol entities may include one or more QoS (Quality of Service) flows. SDAP sublayer 325 can map QoS flows to DRBs (Data Radio Bearers) and vice versa, and can also tag QFIs (QoS Flow IDs) in DL (downlink) and UL (uplink) packets. A single SDAP entity can be configured for a single PDU session. In the UL direction, NG-RAN nodes (e.g., node 203 in embodiment 2) can control the mapping of QoS flows to DRBs in two different ways (reflective mapping or explicit mapping). For reflective mapping, SDAP sublayer 325 can monitor the QFI of DL packets for each DRB and can apply the same mapping for packets flowing in the UL direction. To implement reflective mapping, NG-RAN nodes can tag DL packets with QFIs via the Uu interface. Explicit mapping may involve the RRC sublayer 315 configuring the SDAP sublayer 325 with explicit mapping rules for QoS flows to the DRB. These rules may be stored and followed by the SDAP sublayer 325. In implementations, the SDAP sublayer 325 may be used only in NR implementations and may not be used in LTE implementations.

[0135] RRC sublayer 315 can be configured with aspects of one or more protocol layers, which may include one or more instances of PHY sublayer 301, MAC sublayer 302, RLC sublayer 303, PDCP sublayer 304, and SDAP sublayer 325. In an implementation, an instance of RRC sublayer 315 may process requests from one or more NAS (Non-Access Stratum) sublayers 316 and provide them with instructions. The main services and functions of RRC sublayer 315 may include broadcasting system information (e.g., MIB (Master Information Block) or SIB (System Information Block)), paging, establishment, maintenance, and release of RRC connections between the UE and NG-RAN nodes (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), establishment, configuration, maintenance, and release of point-to-point RBs, security functions including key management, mobility between RATs (Radio Access Technology), and measurement configuration for UE measurement reporting. These MIBs and SIBs may include one or more IEs, each of which may include a separate data field or data structure.

[0136] NAS sublayer 316 forms the highest layer of the control plane between the UE and the AMF. NAS sublayer 316 supports the UE's mobility and session management procedures to establish and maintain IP connections between the UE and the application layer in the NR system.

[0137] As one embodiment, the control plane protocol stack may include, in order from highest to lowest layer, a NAS sublayer 316, an RRC sublayer 315, a PDCP sublayer 304, an RLC sublayer 303, a MAC sublayer 302, and a PHY sublayer 301. In this example, the upper control plane layer may be built on top of the NAS sublayer 316, and this upper control plane layer includes an IP sublayer 317, an SCTP (Stream Control Transmission Protocol) sublayer 318, and an AP (Application Protocol) sublayer 319.

[0138] In a specific NR implementation, AP sublayer 319 can be NGAP (NG Application Protocol) for the NG interface between NG-RAN nodes and AMF, or AP sublayer 319 can be XnAP (Xn Application Protocol) for the Xn interface between two or more NG-RAN nodes.

[0139] NGAP can support the functionality of the NG interface. NGAP services can include two groups: UE-associated services (e.g., services related to the UE) and non-UE-associated services (e.g., services related to the entire NG interface instance between the NG-RAN node and the AMF). These services may include, but are not limited to: paging functions for sending paging requests to NG-RAN nodes involved in a specific paging area; UE context management functions for allowing the AMF to establish, modify, and / or release UE contexts in the AMF and NG-RAN nodes; mobility functions for UEs in ECM-CONNECTED mode, enabling intra-system handover (HO) to support mobility within the NG-RAN and inter-system HO to support mobility from / to EPS systems; NAS signaling transmission functions for transmitting or rerouting NAS messages between the UE and AMF; NAS node selection functions for determining the association between the AMF and the UE; NG interface management functions for setting up the NG interface and monitoring for errors via the NG interface; warning message transmission functions for providing means of transmitting warning messages or canceling ongoing warning message broadcasts via the NG interface; configuration transmission functions for requesting and transmitting RAN configuration information (e.g., SON (Self Organizing Network) information, etc.) between two NG-RAN nodes via the core network (e.g., core network 210 in Embodiment 2); and / or other similar functions.

[0140] XnAP sublayer 319 can support the functions of the Xn interface and may include XnAP basic mobility procedures and XnAP global procedures. XnAP basic mobility procedures may include procedures for handling UE mobility within the NG-RAN, such as handover preparation and cancellation procedures, SN state transmission procedures, UE context retrieval and UE context release procedures, RAN paging procedures, and procedures related to dual connectivity. XnAP global procedures may include procedures associated with non-UE components, such as Xn interface setup and reset procedures, NG-RAN update procedures, and cell activation procedures.

[0141] SCTP sublayer 318 provides guaranteed delivery of application layer messages (e.g., NGAP or XnAP messages). SCTP sublayer 318 can, in part, rely on the IP protocol supported by IP sublayer 317 to ensure reliable delivery of signaling messages between NF-RAN nodes and AMF or other NG-RAN nodes. IP sublayer 317 can be used to perform packet addressing and routing functions, assigning IP addresses to user data packets in formats such as Internet Protocol version 4 (IPv4), IPv6 (IPv6), or PPP (Point-to-Point Protocol). In some implementations, IP sublayer 317 can use point-to-point transport to deliver and send PDUs.

[0142] As one embodiment, the user plane protocol stack may include, in order from highest to lowest layer, SDAP sublayer 325, PDCP sublayer 304, RLC sublayer 303, MAC sublayer 302, and PHY sublayer 301. The user plane protocol stack can be used for communication between the UE, NG-RAN node, and UPF in a specific NR implementation. In this example, the upper layer of the user plane may be built on top of SDAP sublayer 325 and may include UDP (User Datagram Protocol) sublayer 327, IP sublayer 326, GTP-U (General Packet Radio Service Tunneling Protocol User plane) sublayer 328, and User Plane (PDUs) sublayer 329. The GTP-U sublayer 328 can be used to carry user data between the RAN and the core network. UDP sublayer 327 and IP sublayer 326 provide verification for data integrity, port numbers for addressing different functions at the source and destination, and encryption and authentication for selected data streams. GTP-U sublayer 328 can be used on top of UDP sublayer 327 and IP sublayer 326 to carry User Plane PDUs sublayer 329.

[0143] Furthermore, although not shown in Figure 3, the Application layer may exist above the AP sublayer 319 and / or the User Plane PDUs sublayer 329.

[0144] As an example, the wireless protocol architecture in Figure 3 is applicable to the first base station.

[0145] As an example, the wireless protocol architecture in Figure 3 is applicable to the second base station.

[0146] As an example, the first signaling is generated in the AP sublayer 319, and the AP is XnAP.

[0147] As an example, the second signaling is generated in the AP sublayer 319, where the AP is XnAP.

[0148] As an example, the second signaling is generated in the AP sublayer 319, where the AP is an NGAP.

[0149] As an example, the second signaling is generated in the AP sublayer 319, which is related to communication between the AP and the UE server.

[0150] As an example, the third signaling is generated in the AP sublayer 319, and the AP is XnAP.

[0151] As an example, the third signaling is generated in the AP sublayer 319, where the AP is an NGAP.

[0152] Example 4

[0153] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0154] The first communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0155] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0156] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the DL (Downlink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, generating one or more... Parallel streams. Transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain O-stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by multi-antenna transmit processor 471 into an RF stream, which is then provided to different antennas 420.

[0157] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2 (L2). The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL (Layered Logic), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 (L3) for L3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0158] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the first communication device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0159] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. The controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from the second communication device 450. The upper-layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0160] As an example, the first base station in this application includes the first communication device 410.

[0161] As an example, the first UE in this application includes the second communication device 450.

[0162] As an example, the second base station in this application includes the first communication device 410.

[0163] Example 5

[0164] Example 5 illustrates a transmission flowchart between a first base station and a second base station according to an embodiment of this application, as shown in Figure 5, where the step in block F0 is optional.

[0165] For the first base station, in step S5101, a first signaling is received, the first signaling indicating that the sender of the first signaling is co-located with the first server; wherein, the sender of the first signaling is the base station; the first server is associated with the first UE, and the first UE is camped in the cell of the first base station;

[0166] For the second base station, in step S5201, a first signaling is sent, the first signaling instructing the second base station to co-locate with the first server; wherein, the receiver of the first signaling is the base station; the first server is associated with the first UE, and the first UE is camped in the cell of the receiver of the first signaling.

[0167] As an example, step S5101 is described in the relevant description of step 101 in Example 1.

[0168] As one embodiment, the indication of the first signaling depends on the identifier of the first UE.

[0169] As an example, the identifier of the first UE is assigned by the first base station.

[0170] As one embodiment, the identifier of the first UE includes at least one of the following: the C-RNTI (Cell Radio Network Temporary Identifier) ​​assigned to the cell where the first UE is based, the I-RNTI (Inactive Radio Network Temporary Identifier) ​​assigned to the cell where the first UE is based, and the UE identifier assigned to the first UE by the first base station on the interface carrying the first signaling.

[0171] As an example, the interface carrying the first signaling is the Xn interface.

[0172] As an example, the UE identifier assigned by the first base station to the first UE on the interface carrying the first signaling is the UE XnAP ID (Identity) assigned by the first base station to the first UE.

[0173] As an example, the phrase "the indication of the first signaling depends on the identifier of the first UE" means that whether the first signaling is sent depends on the identifier of the first UE.

[0174] As an example, the statement "the indication of the first signaling depends on the identifier of the first UE" means that the first signaling is not triggered by the identifier of the first UE being assigned by the second base station.

[0175] As an example, step S5201 includes: as a response that the identifier of the first UE is not assigned by the second base station, the second base station sends the first signaling.

[0176] As an example, step S5201 includes: the second base station obtaining the identifier of the first UE from the first server.

[0177] As an example, the phrase "the indication of the first signaling depends on the identifier of the first UE" means that the first signaling includes the identifier of the first UE.

[0178] The above embodiments are beneficial for the first base station to know the association between the first server and the first UE, thereby facilitating the establishment of an association between the first base station and the first server for the first UE.

[0179] As one embodiment, step S5201 includes: in response to receiving information indicating that the first base station supports communication with the first server, the second base station sends the first signaling.

[0180] As an example, "the first base station supports communication with the first server" means that the first base station supports establishing an association with the first server.

[0181] As an example, "the first base station supports communication with the first server" means that the first base station supports the transmission of AI / ML related data with the first server.

[0182] As an example, please refer to the relevant description in Example 1 for the AI / ML related data.

[0183] As one embodiment, the first signaling includes the identifier of the first server.

[0184] The above embodiments enable direct communication between the first base station and the first server.

[0185] As one embodiment, the first signaling includes information indicating whether the first server is a master server.

[0186] The above embodiments are beneficial for the first base station to learn the information of the master server in the distributed training mode of the UE server.

[0187] As an example, for the first base station, a second signaling is sent in step S5102, the second signaling indicating the identifier of the first server; correspondingly, for the second base station, a second signaling is received in step S5202, the second signaling indicating the identifier of the first server.

[0188] As one embodiment, the timing of triggering step S5102 is not limited; for example, the first base station sends the second signaling in response to receiving the first signaling; or, for another example, the first base station sends the second signaling again as needed after receiving the first signaling.

[0189] As one embodiment, the identifier of the first server is used to discover or identify the first server.

[0190] As an example, the identifier of the first server includes at least one of the following: the communication address of the first server; the base station identifier of the first server; the server identifier of the first server; and the AI / ML model identifier in the first server.

[0191] As an example, please refer to the relevant description in Example 1 for an example of the communication address.

[0192] As an example, the base station identifier includes at least one of the following: Global NG-RAN Node ID; gNB IP address; PCI (Physical Cell Identity); NCGI (NR Cell Global Identifier).

[0193] As an example, the server identifier is the Server ID.

[0194] As an example, the AI / ML model in the first server refers to: the available / applicable AI / ML model in the first server.

[0195] As an example, the AI / ML model identifier includes at least one of the following: the Model ID of the AI / ML model; the network-side additional condition of the AI / ML model; and the feature / function corresponding to the AI / ML model.

[0196] As an example, the network-side additional conditions of the AI / ML model are represented based on associated IDs.

[0197] As an example, the function corresponding to the AI / ML model refers to the function of the AI / ML model being applied.

[0198] As an example, the function corresponding to the AI / ML model refers to the function supported by the AI / ML model.

[0199] As an example, the functions corresponding to the AI / ML model include one of the following: beam management; positioning.

[0200] As one example, the second signaling indicates the establishment of an association with the first server.

[0201] As an example, the identifier of the first server is included in a container.

[0202] As an example, the container is either Message or IE.

[0203] As an example, the container is a new XnAP message for transport.

[0204] As an example, the container is an XnAP Container IE.

[0205] As one embodiment, the second signaling is included in the container.

[0206] As an example, the phrase "the identifier of the first server is included in the container" means that the second signaling is transparently transmitted to the first server by the second base station through the container.

[0207] As an example, the statement "the identifier of the first server is included in the container" means that the second signaling is transparent to the second base station.

[0208] As one embodiment, the second signaling includes the base station identifier of the first base station.

[0209] As an example, the phrase "the second signaling indicates the establishment of an association with the first server" means that the second signaling indicates the establishment of an association between the first base station and the first server.

[0210] As an example, the phrase "the second signaling indicates the establishment of an association with the first server" means that the second signaling indicates the establishment of an association between the first base station and the AI / ML model in the first server.

[0211] As an example, the phrase "the second signaling indicates the establishment of an association with the first server" means that the second signaling indicates that the first base station and the first server transmit AI / ML related data.

[0212] As one example, the association depends on the first UE.

[0213] As an example, "the association depends on the first UE" means that the second signaling is related to the UE.

[0214] As an example, "the association depends on the first UE" means that the second signaling includes the identifier of the first UE.

[0215] As an example, the phrase "the second signaling indicates the establishment of an association with the first server" means that the second signaling indicates the establishment of an association between the first base station and the first server for the first UE.

[0216] As an example, the phrase "the second signaling indicates the establishment of an association with the first server" means that the second signaling indicates the establishment of an association between the first base station and the AI / ML model in the first server for the first UE.

[0217] As an example, the phrase "the second signaling instructs the establishment of an association with the first server" means that the second signaling instructs the first base station and the first server to transmit AI / ML related data for the first UE.

[0218] As an example, in response to receiving the second signaling, the second base station sends signaling #1 to the first base station; the signaling #1 indicates confirmation of establishing an association between the first base station and the first server.

[0219] As an example, please refer to the example of the first signaling in the embodiment for an example of signaling #1.

[0220] As an example, "the association depends on the first UE" means that the second signaling is triggered by the first base station maintaining the RRC connection of the first UE.

[0221] As an example, step S5102 includes: in response to the first base station maintaining the RRC connection of the first UE, the first base station sends the second signaling.

[0222] As an example, "the association depends on the first UE" means that, in response to the first base station no longer maintaining the RRC connection of the first UE, the first base station releases the association that has been established between the first base station and the first server.

[0223] The above embodiments facilitate timely network management of the association between the network and the first server for the first UE, improve the network's performance in supporting AI / ML functions, and enhance the accuracy of AI / ML model inference.

[0224] As an example, the first base station no longer maintaining the RRC connection of the first UE means that the first base station releases the RRC connection of the first UE.

[0225] As an example, please refer to the example of the first signaling in Example 1 for an example of the second signaling.

[0226] As an example, step S5102 includes: in response to the information in the first signaling that indicates the first server is the master server, the first base station sends the second signaling.

[0227] The above embodiments help reduce the processing complexity of the first base station sending the second signaling in the distributed mode of the UE server, and help save network communication resources.

[0228] As an example, the second signaling is an Xn Setup Response message.

[0229] As an example, the second signaling is the IE in the Xn establishment response message.

[0230] As an example, the second signaling is an NG-RAN Node Configuration Update Acknowledge message.

[0231] As an example, the second signaling is the IE in the NG-RAN node configuration update confirmation message.

[0232] As one embodiment, the second signaling relates to a request to establish an association between the first base station and the first server.

[0233] As an example, the association refers to the interface between the first base station and the first server.

[0234] Example 6

[0235] Example 6 illustrates a flowchart of a first signaling indication depending on the area identifier of the cell where the first UE is camped, according to one embodiment of the present application, as shown in Figure 6.

[0236] For the second base station, please refer to the relevant description of step S5201 in Embodiment 5 for step S601; wherein, the indication of the first signaling depends on the area identifier of the cell where the first UE is camped; step S601 includes steps S6011 and S6012; in step S6011, it is determined whether the first UE is camped in the cell of the second base station, if yes, the process ends, otherwise step S6012 is executed; in step S6012, the first base station is determined based on the cell where the first UE is camped.

[0237] As an example, examples of the first base station or the second base station can be found in the relevant descriptions in Example 1 or Example 5.

[0238] As an example, Example 6 can be combined with Example 5.

[0239] As an example, the area identifier includes at least one of the following: base station identifier; PLMN (Public Land Mobile Network) identifier; PNI-NPN (Public Network Integrated Non-Public Network) identifier; SNPN (Stand-alone Non-Public Network) identifier; CAG (Closed Access Group) identifier; TAI (Tracking Area Identity); TAC (Tracking Area Code); RANAC (RAN Area Code); TRP (Transmit / Receive Point) ID.

[0240] As an example, please refer to the relevant description in Example 5 for a sample of the base station identifier.

[0241] As an example, the phrase "the indication of the first signaling depends on the area identifier of the cell where the first UE is camped" means that whether the first signaling is sent depends on the area identifier of the cell where the first UE is camped.

[0242] As an example, the phrase "the indication of the first signaling depends on the area identifier of the cell where the first UE is camped" means that: if the area identifier of the cell where the first UE is camped is not provided by the second base station, the second base station determines in step S6011 that the first UE is not camped in the cell of the second base station.

[0243] As an example, the phrase "the indication of the first signaling depends on the area identifier of the cell where the first UE is camped" means that, in response to determining in step S6011 that the first UE is not camped in the cell of the second base station, the second base station determines the first base station in step S6012 based on the area identifier of the cell where the first UE is camped.

[0244] As an example, step S6012 includes: receiving the area identifier of the first base station from the first base station.

[0245] As one embodiment, the "indication of the first signaling depends on the area identifier of the cell where the first UE is camped" includes: obtaining the area identifier of the cell where the first UE is camped from the first server.

[0246] As one embodiment, the indication of the first signaling depends on the identifier of the first UE.

[0247] As one embodiment, whether the first signaling is sent depends on the area identifier of the cell where the first UE is camped and the identifier of the first UE.

[0248] As an example, step S6011 includes: in response to the first UE's identifier not being assigned by the second base station, determining that the first UE is not camped in the cell of the second base station.

[0249] As an example, "the identifier of the first UE is not assigned by the second base station" means that the identifier of the first UE is not stored in the UE context stored by the second base station.

[0250] As an example, please refer to the relevant examples in Embodiment 5 for an example of the identifier of the first UE.

[0251] As an example, step S6011 includes: obtaining the identifier of the first UE from the first server.

[0252] As an example, step S6011 includes: in response to the identifier of the first UE being assigned by the second base station, determining whether the first UE is camped in the cell of the second base station based on the area identifier of the cell in which the first UE is camped.

[0253] In the above embodiments, the identifier of the first UE may be duplicated with the identifier of other UEs assigned by the cell in the second base station. Therefore, in view of the above situation, the area identifier of the cell where the first UE is camped is helpful to assist the second base station in determining whether the first UE is camped in its own cell.

[0254] As an example, "the identifier of the first UE is assigned by the second base station" means that the identifier of the first UE is stored in the UE context stored by the second base station.

[0255] Example 7

[0256] Example 7 illustrates a transmission flowchart of a first base station sending a second signaling to a third node according to an embodiment of this application, as shown in Figure 7.

[0257] For the first base station, please refer to the relevant description of step S5101 in Embodiment 5 for step S7101; in step S7102, a second signaling is sent to the third node, the second signaling indicating the identifier of the first server;

[0258] For the third node, in step S7301, a second signaling is received from the first base station, the second signaling indicating the identifier of the first server; in step S7302, signaling #2 is sent to the second base station, the signaling #2 indicating the establishment of an association with the first server;

[0259] For the second base station, please refer to the relevant description of step S5201 in Embodiment 5 for step S7201; in step S7202, signaling #2 is received from the third node, and the signaling #2 indicates the establishment of an association with the first server.

[0260] As an example, examples of the first base station or the second base station can be found in the relevant descriptions in Example 1 or Example 5.

[0261] As an example, Example 7 can be combined with at least one of Examples 5 and 6.

[0262] As an example, please refer to Example 5 for a description of the second signaling.

[0263] As an example, step S7102 includes: sending the second signaling in response to receiving information indicating that the third node supports communication with the first server.

[0264] As an example, the third node supports communication with the first server. For an example of the first base station supporting communication with the first server in Example 5, please refer to Example 5.

[0265] As an example, the phrase "the second signaling instructs the establishment of an association with the first server" means that the second signaling instructs the third node to establish an association with the first server.

[0266] As an example, "the association depends on the first UE" means that the signaling #2 is related to the UE.

[0267] As an example, "the association depends on the first UE" means that the signaling #2 includes the identifier of the first UE.

[0268] As an example, step S7302 is triggered by step S7301.

[0269] As one embodiment, the timing of triggering step S7302 is not limited; for example, the third node sends signaling #2 in response to receiving the second signaling; or, for another example, the third node sends signaling #2 again based on demand after receiving the second signaling.

[0270] As an example, "the signaling #2 instructs the establishment of an association with the first server" means that the signaling #2 instructs the establishment of an association between the third node and the first server.

[0271] As an example, "the signaling #2 instructs to establish an association with the first server" means that the signaling #2 instructs to establish an association between the third node and the AI / ML model in the first server.

[0272] As an example, please refer to the relevant description in Example 5 for an example of the AI / ML model in the first server.

[0273] As an example, "the signaling #2 instructs the establishment of an association with the first server" means that the signaling #2 instructs the establishment of an AI / ML related data transmission between the third node and the first server.

[0274] As an example, please refer to the relevant description in Example 1 for the AI / ML related data.

[0275] As an example, "the signaling #2 instructs the establishment of an association with the first server" means that the signaling #2 instructs the establishment of an association between the third node and the first server for the first UE.

[0276] As an example, "the signaling #2 instructs to establish an association with the first server" means that the signaling #2 instructs to establish an association between the third node and the AI / ML model in the first server for the first UE.

[0277] As an example, "the signaling #2 instructs the establishment of an association with the first server" means that the signaling #2 instructs the establishment of an association between the third node and the first server for the transmission of AI / ML related data for the first UE.

[0278] As an example, in response to receiving the signaling #2, the second base station sends signaling #3 to the third node; the signaling #3 indicates confirmation of establishing an association between the third node and the first server.

[0279] As an example, the third node is an NG-RAN node.

[0280] As one example, the NG-RAN node is a radio access network device.

[0281] As one example, the wireless access network device is a base station.

[0282] As an example, please refer to the example of the second signaling in Example 5 for an example of signaling #2.

[0283] As an example, signaling #3 is signaling #1 in example 5.

[0284] As one embodiment, the second base station includes the third node.

[0285] As an example, the third node is the target NG-RAN node of the first UE.

[0286] As a sub-implementation of the above embodiments, the second signaling is related to the handover process.

[0287] As a sub-implementation of the above embodiments, the second signaling is a Handover Request message.

[0288] As a sub-implementation of the above embodiments, the second signaling is the IE in the switching request message.

[0289] As an example, the third node is a new NG-RAN node for the first UE.

[0290] As a sub-implementation of the above embodiments, the second signaling is related to the RRC connection reestablishment or RRC connection recovery of the first UE.

[0291] As a sub-implementation of the above embodiments, the second signaling is related to the UE context.

[0292] As a sub-implementation of the above embodiments, the second signaling is a Retrieve UE Context Response message.

[0293] As a sub-implementation of the above embodiments, the second signaling is to re-retrieve the IE in the UE context response message.

[0294] In the two embodiments described above, the wireless network can respond to UE mobility in a timely manner, ensuring that the communication between the wireless network accessed by the first UE and the first server is not interrupted. This is beneficial for providing AI / ML functions with data related to the mobility of the first UE, thereby improving the continuity and performance of AI / ML functions in the wireless network.

[0295] As an example, the third node is the secondary NG-RAN node of the first UE.

[0296] As a sub-implementation of the above embodiments, the second signaling is related to the dual connectivity process.

[0297] As a sub-implementation of the above embodiments, the second signaling is an S-Node Addition Request message.

[0298] As a sub-implementation of the above embodiment, the second signaling is the IE in the auxiliary node add request message.

[0299] The above embodiments facilitate communication between the primary and secondary nodes and the first server in dual-connection scenarios, improving the accuracy and completeness of AI / ML functions in network applications.

[0300] As one embodiment, the third node is a network function in the core network device to which the first UE is connected.

[0301] As an example, the third node is an AMF or an LMF (Location Management Function).

[0302] As a sub-implementation of the above embodiments, the second signaling is an AP-related Message or IE.

[0303] As a sub-implementation of the above embodiments, the second signaling is an NGAP Message or an IE in an NGAP Message.

[0304] As a sub-example of the above embodiments, the identifier of the first UE includes the RAN UE NGAP ID assigned to the first UE by the first base station.

[0305] As a sub-implementation of the above embodiments, the second signaling is related to the UE.

[0306] As a sub-implementation of the above embodiments, the second signaling is related to UE context management.

[0307] As a sub-implementation of the above embodiments, the second signaling is related to NAS message transmission.

[0308] As a sub-implementation of the above embodiments, the second signaling is an Initial UE Message.

[0309] As a sub-implementation of the above embodiments, the second signaling is the IE in the initial UE message.

[0310] As a sub-implementation of the above embodiments, the second signaling is related to NRPPa (NR Positioning Protocol A) transmission.

[0311] As a sub-implementation of the above embodiments, the second signaling is an Uplink UE Associated NRPPA Transport message.

[0312] As a sub-implementation of the above embodiments, the second signaling is the IE in the NRPPA transmission message associated with the uplink UE.

[0313] As a sub-implementation of the above embodiments, the second signaling is related to AI / ML.

[0314] As a sub-implementation of the above embodiments, the second signaling includes an "AI / ML" field.

[0315] As a sub-implementation of the above embodiments, the second signaling includes a "Server" field.

[0316] As a sub-implementation of the above embodiments, the second signaling is related to the update process.

[0317] As a sub-implementation of the above embodiments, the second signaling is related to a completely new process.

[0318] As a sub-implementation of the above embodiments, in response to receiving the second signaling, the third node sends the identifier of the first server to NWDAF (Network Data Analytics Function).

[0319] As a sub-implementation of the above embodiment, the signaling #2 is an AP-related Message or IE.

[0320] As a sub-implementation of the above embodiments, the signaling #2 is an NGAP Message or an IE in an NGAP Message.

[0321] As a sub-implementation of the above embodiments, the signaling #2 is related to the UE.

[0322] As a sub-implementation of the above embodiments, the signaling #2 is not related to the UE.

[0323] As a sub-implementation of the above embodiments, the signaling #2 is related to the interface.

[0324] As a sub-example of the above embodiment, the signaling #2 is related to NRPPa transmission.

[0325] As a sub-implementation of the above embodiments, the signaling #2 is related to AI / ML.

[0326] As a sub-implementation of the above embodiment, the signaling #2 includes the "AI / ML" field.

[0327] As a sub-implementation of the above embodiment, the signaling #2 includes the "Server" field.

[0328] As a sub-implementation of the above embodiments, the signaling #2 is related to the update process.

[0329] As a sub-implementation of the above embodiments, the signaling #2 is related to a completely new process.

[0330] As a sub-implementation of the above embodiments, please refer to the example of signaling #2 or the example of the second signaling for an example of signaling #3.

[0331] The above embodiments are beneficial for establishing the association between network functions in the core network equipment and the first server, improving the utilization rate of AI / ML data, and ensuring the globality of end-to-end application of AI / ML functions.

[0332] Example 8

[0333] Example 8 illustrates a transmission flowchart of a first base station receiving third signaling according to an embodiment of the present application, as shown in Figure 8, where the step in block F1 is optional.

[0334] For the first base station, please refer to the relevant description of step S5101 in Embodiment 5 for step S8101; in step S81012, a third signaling is received from the third node, the third signaling indicating the identifier sent by the first server; for step S8102, please refer to the relevant description of step S7102 in Embodiment 7.

[0335] For the third node, a third signaling is sent in step S83012, the third signaling indicating the sending of the identifier of the first server; for step S8301, please refer to the relevant description of step S7301 in embodiment 7;

[0336] For the second base station, please refer to the relevant description of step S5201 in Embodiment 5 for step S8201.

[0337] As an example, examples of the first base station or the second base station can be found in the relevant descriptions in Example 1 or Example 5.

[0338] As an example, please refer to the relevant description in Example 7 for an example of the third node.

[0339] As an example, Example 8 may be combined with at least one of Examples 5 and 7.

[0340] As an example, for the first base station, in step S81011, signaling #4 is sent to the third node, and signaling #4 indicates information about the server associated with the first UE; correspondingly, for the third node, in step S83011, signaling #4 is received, and signaling #4 indicates information about the server associated with the first UE.

[0341] As an example, some non-limiting examples are given below regarding the information of the server associated with the first UE indicated by signaling #4.

[0342] Typically, but not limitingly, the signaling #4 includes bit information, where a bit value of "0" indicates that there is no information about a server associated with the first UE; and a bit value of "1" indicates that there is information about a server associated with the first UE.

[0343] Typically, but not limitingly, the signaling #4 includes Boolean information, where a Boolean value of "False" indicates that there is no information about a server associated with the first UE; and a Boolean value of "True" indicates that there is information about a server associated with the first UE.

[0344] Typically, but not limitingly, the signaling #4 includes enumeration value information; for example, an enumeration value of “UE OTT server info available” indicates that information about the server associated with the first UE is available, and this enumeration value will only be presented if information about the server associated with the first UE is available.

[0345] Typically, but not limitingly, the signaling #4 indicates the identifier of the server associated with the first UE, and the server associated with the first UE includes the first server; this indication can be seen as an implicit indication that the signaling #4 indicates information about the server associated with the first UE.

[0346] As an example, for an example of the server associated with the first UE, please refer to the example in Example 1 where the first server is associated with the first UE.

[0347] As an example, the identifier of the server associated with the first UE is described in the relevant description of the identifier of the first server in Example 5.

[0348] As an example, the phrase "the third signaling indicates sending the identifier of the first server" means that the third signaling indicates sending the identifier of the server associated with the first UE.

[0349] As an example, the phrase "the third signaling instructs to send the identifier of the first server" means that the third signaling instructs to send a request for the identifier of the server associated with the first UE.

[0350] As an example, "the third signaling instructs the sending of the identifier of the first server" means: the third signaling instructs a request to send the identifier of the first server.

[0351] As an example, the phrase "the third signaling indicates the identifier of the first server" means that the third signaling indicates the information of the server that the third node needs to provide; wherein, the server that the third node needs to provide includes the first server.

[0352] As an example, the information of the server can be found in the example of the identifier of the first server in Example 5.

[0353] As an example, please refer to the example of the second signaling in Example 7 for an example of signaling #4.

[0354] As an example, please refer to the example of the second signaling in Example 7 for an example of the third signaling.

[0355] As an example, the third node is the target NG-RAN node of the first UE.

[0356] As a sub-implementation of the above embodiments, the signaling #4 is a switching request message or an IE in a switching request message.

[0357] As a sub-implementation of the above embodiments, the third signaling is a Handover Request Acknowledge message or an IE in the Handover Request Acknowledge message.

[0358] As a sub-implementation of the above embodiments, the second signaling is a Serial Number Status Transfer (SN Status Transfer) message or an IE in a Serial Number Status Transfer message.

[0359] As an example, the third node is a new NG-RAN node for the first UE.

[0360] As a sub-implementation of the above embodiments, the third signaling is a Retrieve UE Context Request message or an IE in the Retrieve UE Context Request message.

[0361] As a sub-implementation of the above embodiments, the second signaling is to re-retrieve the UE context response message or to re-retrieve the IE in the UE context response message.

[0362] As an example, the third node is the secondary NG-RAN node of the first UE.

[0363] As a sub-implementation of the above embodiment, the signaling #4 is a secondary node addition request or an IE in the secondary node addition request.

[0364] As a sub-implementation of the above embodiments, the third signaling is an S-Node Addition Request Acknowledge message or an IE in the S-Node Addition Request Acknowledge message.

[0365] As a sub-implementation of the above embodiments, the second signaling is the S-Node Reconfiguration Complete message or the IE in the S-Node Reconfiguration Complete message.

[0366] As a sub-implementation of the above embodiments, the third signaling is an S-Node Modification Required message or an IE in the S-Node Modification Required message.

[0367] As a sub-implementation of the above embodiments, the second signaling is an S-Node Modification Confirmation message or an IE in the S-Node Modification Confirmation message.

[0368] As one embodiment, the third node is a network function (e.g., AMF / LMF) in the core network device to which the first UE is connected.

[0369] As a sub-implementation of the above embodiments, the signaling #4 is the initial UE message or the IE in the initial UE message.

[0370] As a sub-implementation of the above embodiments, the third signaling is an Initial Context Setup Request message or an IE in the Initial Context Setup Request message.

[0371] As a sub-implementation of the above embodiments, the second signaling is an Initial Context Setup Response message or an IE in the Initial Context Setup Response message.

[0372] As a sub-implementation of the above embodiments, the third signaling is a PDU Session Resource Setup Request message or an IE in a PDU Session Resource Setup Request message.

[0373] As a sub-implementation of the above embodiments, the second signaling is a PDU Session Resource Setup Response message or an IE in the PDU Session Resource Setup Response message.

[0374] As a sub-implementation of the above embodiments, the signaling #4 is an NRPPA transmission message associated with the uplink UE or an IE in an NRPPA transmission message associated with the uplink UE.

[0375] As a sub-implementation of the above embodiments, the third signaling is a Downlink UE Associated NRPPA Transport message or an IE in a Downlink UE Associated NRPPA Transport message.

[0376] As a sub-implementation of the above embodiments, the second signaling is an NRPPA transmission message associated with the uplink UE or an IE in an NRPPA transmission message associated with the uplink UE.

[0377] Example 9

[0378] Figure 9 illustrates a device structure diagram of a network node 900 according to an embodiment of this application. The network node 900 refers to a device capable of, configured, arranged, and / or operatively communicating directly or indirectly with a UE and / or other network nodes or devices. Examples of network nodes include, but are not limited to, APs (Access Points) (e.g., radio access points) and BSs (Base Stations) (e.g., wireless base stations, Node Bs, evolved Node Bs (eNBs), and NR Node Bs (gNBs)).

[0379] Base stations can be classified based on the coverage they provide (or, more specifically, their transmit power levels), and thus can be referred to as femtocells, picocells, microcells, or macrocells, depending on the coverage provided. A base station can be a relay node or a relay host node controlling a repeater. Network nodes can also include one or more (or all) portions of a distributed radio base station, such as a centralized digital unit and / or an RRU (Remote Radio Unit), sometimes referred to as an RRH (Remote Radio Head). This remote radio unit may be integrated with an antenna as an antenna-integrated radio or may not be integrated with an antenna. A portion of a distributed radio base station can also be referred to as a node in a DAS (Distributed Antenna System).

[0380] Other examples of network nodes include multi-TRP (Transmission Reception Point) 5G access nodes, MSR (Multi Standard Radio) devices, network controllers (such as RNC (Radio Network Controller) or BSC (Base Station Controller)), BTS (Base Transceiver Station), transmission points, transmission nodes, MCE (Multicell / multicast Coordination Entity), OAM (Operations Administration and Maintenance) nodes, OSS (Operation Support Systems) nodes, SON (Self Organizing Network) nodes, location nodes (e.g., E-SMLC (Evolved Serving Mobile Location Center)) and / or MDT (Minimization of Drive Tests).

[0381] Network node 900 includes processing circuitry 902, memory 904, communication interface 906, and power supply 908. Network node 900 may consist of multiple physically independent components (e.g., NodeB components and RNC components, or BTS components and BSC components, etc.), each component having its own set of components. In some scenarios where network node 900 includes multiple individual components (e.g., BTS and BSC components), one or more of these individual components may be shared among multiple network nodes. For example, a single RNC can control multiple NodeBs. In this case, each unique NodeB and RNC pair may be considered a single, separate network node in some situations. In some embodiments, network node 900 may be configured to support multiple RATs (Radio Access Technology). In such embodiments, some components may be duplicated (e.g., separate memory 904 for different RATs), and some components may be reused (e.g., the same antenna 910 may be shared by different RATs). Network node 900 may also include multiple sets of illustrated components for various wireless technologies integrated into network node 900, such as GSM (Global System for Mobile Communications), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), NR (New Radio), WiFi (Wireless Fidelity), Zigbee, Z-wave, LoRaWAN (Long Range Wide Area Network), RFID (Radio Frequency Identification), or Bluetooth wireless technologies. These wireless technologies can be integrated into the same or different chips or chipsets and other components within network node 900.

[0382] The processing circuitry 902 may include one or more combinations of the following: a microprocessor, a controller, a central processing unit, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or any other suitable computing device, resource, or combination of hardware, software, and / or coding logic, which may provide network node 900 functionality individually or together with other network node 900 components (e.g., memory 904).

[0383] In some embodiments, the processing circuitry 902 includes a System on Chip (SOC). In some embodiments, the processing circuitry 902 includes one or more of an RF (Radio Frequency) transceiver circuitry 912 and a baseband processing circuitry 914. In some embodiments, the RF transceiver circuitry 912 and the baseband processing circuitry 914 may be on separate chips (or chipsets), boards, or units, such as radio units and digital units. In alternative embodiments, some or all of the RF transceiver circuitry 912 and the baseband processing circuitry 914 may be on the same chip or chipset, board, or unit.

[0384] Memory 904 may include any form of volatile or non-volatile computer-readable memory, including but not limited to permanent memory, solid-state memory, remotely mounted memory, magnetic media, optical media, RAM (Random Access Memory), ROM (Read-Only Memory), mass storage media (e.g., hard disk), removable storage media (e.g., flash drives, optical discs (CDs), or digital video discs (DVDs)) and / or any other volatile or non-volatile, non-transitory device-readable and / or computer-executable storage device that stores information, data, and / or instructions that can be used by processing circuitry 902. Memory 904 may store any suitable instructions, data, or information, including computer programs, software, and applications, including one or more of logic, rules, codes, tables, and / or other instructions that can be executed by processing circuitry 902 and used by network node 900. Memory 904 may be used to store any calculations performed by processing circuitry 902 and / or any data received through communication interface 906. In some embodiments, processing circuitry 902 and memory 904 are integrated.

[0385] Communication interface 906 is used for wired or wireless communication of signaling and / or data between network nodes, access networks, and / or UEs. As shown, communication interface 906 includes a port / terminal 916 for transmitting and receiving data to and from a network, for example, via a wired connection. Communication interface 906 further includes radio front-end circuitry 918, which may be coupled to antenna 910, or in some embodiments, to a portion of antenna 910. Radio front-end circuitry 918 includes a filter 920 and an amplifier 922. Radio front-end circuitry 918 may be connected to antenna 910 and processing circuitry 902. Radio front-end circuitry 918 may be configured to modulate the signals communicating between antenna 910 and processing circuitry 902. Radio front-end circuitry 918 may receive digital data to be transmitted wirelessly to other network nodes or UEs. Radio front-end circuitry 918 may use a combination of filter 920 and / or amplifier 922 to convert the digital data into radio signals with appropriate channel and bandwidth parameters. The radio signals can then be transmitted via antenna 910. Similarly, when receiving data, antenna 910 can collect radio signals, which are then converted into digital data by radio front-end circuitry 918. The digital data can then be passed to processing circuitry 902. In other embodiments, the communication interface may include different components and / or different combinations of components.

[0386] In some alternative embodiments, network node 900 does not include a separate radio front-end circuitry 918; instead, processing circuitry 902 includes radio front-end circuitry and is connected to antenna 910. Similarly, in some embodiments, all or part of the RF transceiver circuitry 912 is part of communication interface 906. In other embodiments, communication interface 906 includes one or more ports / terminals 916, radio front-end circuitry 918, and RF transceiver circuitry 912 as part of a radio unit (not shown), and communication interface 906 communicates with baseband processing circuitry 914 as part of a digital unit (not shown).

[0387] Antenna 910 may include one or more antennas or antenna arrays configured to transmit and / or receive wireless signals. Antenna 910 may be coupled to radio front-end circuitry 918 and may be any type of antenna capable of wirelessly transmitting and receiving data and / or signals. In some embodiments, antenna 910 is decoupled from network node 900 and may be connected to network node 900 via an interface or port.

[0388] Antenna 910, communication interface 906, and / or processing circuitry 902 can be configured to perform any receive operation and / or certain acquire operation described herein as being performed by a network node. Any information, data, and / or signals can be received from the UE, another network node, and / or any other network device. Similarly, antenna 910, communication interface 906, and / or processing circuitry 902 can be configured to perform any transmit operation described herein as being performed by a network node. Any information, data, and / or signals can be transmitted to the UE, another network node, and / or any other network device.

[0389] Power supply 908 provides power to the various components of network node 900 in a form suitable for each component (e.g., at the voltage and current levels required by each respective component). Power supply 908 may also include or be coupled to power management circuitry to provide power to the components of network node 900 for performing the functions described herein. For example, network node 900 may be connected to an external power source (e.g., mains, power outlet) via input circuitry or an interface (e.g., cable), thereby supplying power to the power circuitry of power supply 908. As another example, power supply 908 may include a power source in the form of a battery or battery pack, which is connected to or integrated into the power circuitry. The battery can provide backup power in the event of an external power failure.

[0390] Embodiments of network node 900 may include additional components beyond those shown in FIG9 to provide certain aspects of network node functionality, including any of the functions described herein and / or any functionality required to support the topics described herein. For example, network node 900 may include a user interface device to allow information to be input into and output from network node 900. This can allow users to perform diagnostic, maintenance, repair, and other management functions on network node 900.

[0391] As one embodiment, the first base station includes the network node 900.

[0392] As one embodiment, the second base station includes the network node 900.

[0393] Example 10

[0394] Example 10 illustrates a structural block diagram of a processing apparatus in a first base station according to an embodiment of the present application; as shown in Figure 10. In Figure 10, the processing apparatus 1000 in the first base station includes a first processor 1001.

[0395] The first processor 1001 receives a first signaling, the first signaling indicating that the sender of the first signaling is co-located with a first server; wherein the sender of the first signaling is a base station; the first server is associated with a first UE, and the first UE is camped in the cell of the first base station.

[0396] As one embodiment, the indication of the first signaling depends on the identifier of the first UE.

[0397] As one embodiment, the indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

[0398] As one embodiment, the first processor 1001 sends a second signaling message, the second signaling message indicating the identifier of the first server.

[0399] As an example, the identifier of the first server is included in the container.

[0400] As one example, the second signaling indicates the establishment of an association with the first server.

[0401] As one example, the association depends on the first UE.

[0402] As an example, the first processor 1001 receives a third signaling message indicating the identifier to be sent by the first server.

[0403] As one example, the first base station is an access network device.

[0404] As an example, the first base station is a relay node device.

[0405] Example 11

[0406] Example 11 illustrates a structural block diagram of a processing apparatus in a second base station according to an embodiment of the present application; as shown in Figure 11. In Figure 11, the processing apparatus 1100 in the second base station includes a second processor 1101.

[0407] The second processor 1101 sends a first signaling instruction, which instructs the second base station to co-locate with the first server; wherein the receiver of the first signaling instruction is the base station; the first server is associated with the first UE, and the first UE resides in the cell of the receiver of the first signaling instruction.

[0408] As one embodiment, the indication of the first signaling depends on the identifier of the first UE.

[0409] As one embodiment, the indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

[0410] As one embodiment, the second processor 1101 receives a second signaling message indicating the identifier of the first server.

[0411] As an example, the identifier of the first server is included in the container.

[0412] As one example, the second signaling indicates the establishment of an association with the first server.

[0413] As one example, the association depends on the first UE.

[0414] As an example, the second processor 1101 sends a third signaling message indicating the identification of the first server to be sent.

[0415] As one example, the second base station is an access network device.

[0416] As one example, the second base station is a relay node device.

[0417] As one example, the second base station is located alongside the first server.

[0418] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication equipment, vehicles, RSUs, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base stations or system equipment in this application include, but are not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, TRPs (Transmitter Receiver Points), GNSS, relay satellites, satellite base stations, airborne base stations, RSUs (Road Side Units), drones, and testing equipment, such as transceivers or signaling testers that simulate some functions of a base station, and other wireless communication equipment.

[0419] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A method for using a first base station in wireless communication, characterized in that, include: Receive a first signaling message, the first signaling message indicating that the sender of the first signaling message is concurred with the first server; Wherein, the sender of the first signaling is a base station; The first server is associated with the first UE, and the first UE is camped in the cell of the first base station.

2. The method according to claim 1, characterized in that, The indication of the first signaling depends on the identifier of the first UE.

3. The method according to claim 1 or 2, characterized in that, The indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

4. The method according to any one of claims 1 to 3, characterized in that, include: Send a second signaling message, which indicates the identifier of the first server.

5. The method according to claim 4, characterized in that, The identifier of the first server is included in the container.

6. The method according to claim 4 or 5, characterized in that, The second signaling instruction indicates the establishment of an association with the first server.

7. The method according to claim 6, characterized in that, The association depends on the first UE.

8. The method according to any one of claims 4 to 7, characterized in that, include: Receive a third signaling message, the third signaling message indicating the identifier to be sent to the first server.

9. A base station used for wireless communication, characterized in that, include: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, the memory being used to store computer program code, the computer program code including computer instructions, the one or more processors invoking the computer instructions to cause the base station to perform the method as described in any one of claims 1-8.

10. A method for using a second base station for wireless communication, characterized in that, include: Send a first signaling message, the first signaling message instructing the second base station to be co-located with the first server; In this case, the receiver of the first signaling is the base station; The first server is associated with the first UE, and the first UE resides in the cell of the receiver of the first signaling.

11. The method according to claim 10, characterized in that, The indication of the first signaling depends on the identifier of the first UE.

12. The method according to claim 10 or 11, characterized in that, The indication of the first signaling depends on the area identifier of the cell where the first UE is camped.

13. The method according to any one of claims 10 to 12, characterized in that, include: Receive a second signaling message, which indicates the identifier of the first server.

14. The method according to claim 13, characterized in that, The identifier of the first server is included in the container.

15. The method according to claim 13 or 14, characterized in that, The second signaling instruction indicates the establishment of an association with the first server.

16. The method according to claim 15, characterized in that, The association depends on the first UE.

17. The method according to any one of claims 13 to 16, characterized in that, include: Send a third signaling message, the third signaling message indicating that the identifier of the first server is to be sent.

18. A base station used for wireless communication, characterized in that, include: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, the memory being used to store computer program code, the computer program code including computer instructions, the one or more processors invoking the computer instructions to cause the base station to perform the method as described in any one of claims 10-17.

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