Service establishment method, communication apparatuses and storage medium

Abstract

Provided in the present disclosure are a service establishment method, communication apparatuses and a storage medium. The service establishment method comprises: determining a target communication system to which a service establishment request belongs, and acquiring first wireless capability information of a terminal, wherein the first wireless capability information is wireless capability information under the target communication system; and, on the basis of the first wireless capability information, establishing a service connection for the terminal.

Description

Service establishment method, communication device, and storage medium

[0001] This disclosure claims priority to Chinese patent application No. 202410175673.4, filed on February 7, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a service establishment method, a communication device, and a storage medium. Background Art

[0003] In current mobile communication network systems, different terminals have different wireless capabilities, and base stations need to configure resources based on the terminal's wireless capabilities. The base station needs to obtain the terminal's wireless capabilities to establish a service connection for the terminal. Summary of the Invention

[0004] In one aspect, a service establishment method is provided, which is applied to a base station. The service establishment method includes:

[0005] Determine a target communication system to which the service establishment request belongs, and obtain first wireless capability information of a terminal, where the first wireless capability information is wireless capability information of the target communication system;

[0006] A service connection is established for the terminal based on the first wireless capability information.

[0007] In another aspect, a communication device is provided. The communication device includes: a processing unit;

[0008] The processing unit is configured to determine a target communication system to which the service establishment request belongs, and obtain first wireless capability information of the terminal, where the first wireless capability information is wireless capability information under the target communication system;

[0009] The processing unit is further configured to establish a service connection for the terminal based on the first wireless capability information.

[0010] In another aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor implements the service establishment method described in the above aspect when executing the computer program.

[0011] In another aspect, a computer-readable storage medium is provided, wherein computer program instructions are stored on the computer-readable storage medium, and when the computer program instructions are executed by a processor, the service establishment method described in the above aspect is implemented.

[0012] In another aspect, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed by a processor, the service establishment method described in the above aspect is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings.

[0014] FIG1 is an architecture diagram of a communication system according to some embodiments of the present disclosure.

[0015] FIG2 is a flowchart of a service establishment method according to some embodiments of the present disclosure.

[0016] FIG3 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0017] FIG4 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0018] FIG5 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0019] FIG6 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0020] FIG7 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0021] FIG8 is a flowchart of another service establishment method according to some embodiments of the present disclosure.

[0022] FIG9 is a scenario diagram of a service establishment scenario according to some embodiments of the present disclosure.

[0023] FIG10 is a structural diagram of a communication device according to some embodiments of the present disclosure.

[0024] FIG11 is a structural diagram of another communication device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0025] To help those skilled in the art better understand the technical solutions of the embodiments of the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below in conjunction with the drawings in the present disclosure. Obviously, the embodiments described are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0026] It should be noted that in this disclosure, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

[0027] In the following, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature defined with the terms "first," "second," etc., may explicitly or implicitly include one or more of such features.

[0028] In the description of this disclosure, unless otherwise specified, the symbol " / " means "or." For example, A / B can mean A or B. "And / or" herein simply represents a relationship describing associated objects, indicating that three possible relationships exist. For example, A and / or B can mean: only A, only B, and A and B. Furthermore, "at least one" means one or more, and "a plurality" means two or more.

[0029] A globally unique temporary user equipment identity (GUTI) is a globally unique temporary identification code assigned by the core network to a terminal to ensure that the identity of the identified terminal is unique within the network managed by the corresponding operator.

[0030] The International Mobile Equipment Identity (IMEI) is a unique identifier for a terminal in a mobile network system. Compared to the GUTI, the IMEI is fixed once the terminal is assembled.

[0031] The non-access stratum (NAS) is the protocol stack of a mobile communication system. A mobile communication system consists of a core network, an access network, and terminals. The protocol stack of a mobile communication system is mainly divided into the NAS layer and the access stratum (AS).

[0032] The NAS layer mainly involves signaling and data transmission between the core network and the terminal, and the AS layer mainly involves signaling and data transmission between the access network and the terminal.

[0033] In current mobile communication network systems, different terminals have different wireless capabilities, and base stations need to perform differentiated resource allocation based on the wireless capabilities of the terminals.

[0034] Base stations need to obtain the terminal's wireless capabilities to establish a service connection. However, due to the large amount of wireless capabilities, the time it takes for a terminal to report its wireless capabilities and the success rate of reporting are easily affected by the environment. Terminals in areas with weak coverage, high interference, or high loads are likely to experience high service establishment delays or even service establishment failures due to poor uplink channel quality or insufficient cell uplink resources, thus affecting the user experience.

[0035] In an embodiment of the present disclosure, the base station can determine the target communication system to which the service establishment request belongs, and obtain the first wireless capability information of the terminal in the target communication system. Since the first wireless capability information is the wireless capability information required for the service connection corresponding to the service establishment request requested by the terminal, the base station can establish a service connection for the terminal based on the obtained first wireless capability information. The wireless capability information of other communication systems is non-essential wireless capability information, and the base station does not obtain this non-essential wireless capability information when the terminal requests to establish a service connection. In this way, the present disclosure can reduce the amount of wireless capability information obtained by the base station during the service establishment phase, thereby reducing the impact of the communication environment on the terminal's reporting of wireless capability information, shortening the service establishment delay, and improving the success rate of service establishment.

[0036] The following describes in detail the implementation of the embodiments of the present disclosure in conjunction with the accompanying drawings.

[0037] The service establishment method provided in the embodiment of the present disclosure can be applied to a communication system. FIG1 is an architecture diagram of a communication system 10 according to an embodiment of the present disclosure. As shown in FIG1 , the communication system 10 includes: a base station 101 , a terminal 102 , and a core network element 103 .

[0038] The base station 101 is connected to the terminal 102 within the coverage area, and the base station 101 is connected to the core network element 103 on the core network side.

[0039] The terminal 102 is used to send user access information to the base station 101 , and correspondingly, the base station 101 is used to receive the user access information from the terminal 102 .

[0040] The user access information is used to request access to a base station.

[0041] The terminal 102 is further configured to send a service establishment request to the base station 101. The base station 101 establishes a service connection for the terminal 102 in response to the service establishment request.

[0042] It should be noted that the base station 101 needs to establish a service connection for the terminal 102 based on the wireless capability information of the terminal 102 .

[0043] In some implementations, the base station 101 may obtain the wireless capability information through the terminal 102 or the core network element 103 .

[0044] For example, taking the fifth generation mobile communication technology (5G) system as an example, the wireless capability information (e.g., UECapabilityInformation) includes the wireless capabilities of different communication systems, such as new radio (NR), evolved universal terrestrial radio access (E-UTRA)-NR, E-UTRA, universal terrestrial radio access (UTRA)-frequency division duplexing (FDD)-v1610, etc.

[0045] Taking the fourth generation mobile communication technology (4G) system as an example, the wireless capability information (UECapabilityInformation) includes the wireless capabilities of different communication systems, such as E-UTRA, UTRA, global system for mobile communications (GSM) / enhanced data rate for GSM evolution (EDGE) radio access network (GSM EDGE radio access network, GERAN)-circuit switched (CS), GERAN-packet switched (PS), CDMA2000-1XRTT (radio transmission technology), NR, E-UTRA-NR, etc.

[0046] Taking future-oriented communication systems, such as the sixth generation mobile communication technology (6G) system as an example, the wireless capability information (UECapabilityInformation) includes wireless capability information of different communication systems, such as 6G, NR, E-UTRA-NR, E-UTRA, UTRA-FDD-v1610, etc.

[0047] In some implementations, the base station 101 is configured to determine a target communication system to which the service establishment request belongs, and obtain wireless capability information of the terminal 102 in the target communication system, thereby establishing a service connection for the terminal 102 .

[0048] Exemplarily, when base station 101 is a 5G system base station, base station 101 can only obtain the wireless capability information of terminal 102 in the 5G system during the service establishment phase, so that base station 101 reduces the data volume of the wireless capability information of terminal 102 during the service establishment phase, thereby shortening the service establishment delay of terminal 102 and improving the service establishment success rate of terminal 102.

[0049] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" and "network" can be used interchangeably. A CDMA system can implement wireless technologies such as universal terrestrial radio access (UTRA) and CDMA2000. UTRA can include wideband CDMA (WCDMA) technology and other CDMA variants. CDMA2000 can cover interim standard (IS) 2000 (IS-2000), IS-95, and IS-856 standards. A TDMA system can implement wireless technologies such as global system for mobile communication (GSM). The OFDMA system can implement wireless technologies such as evolved universal terrestrial radio access (evolved UTRA, E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDMA, etc. UTRA and E-UTRA are UMTS (Universal Mobile Telecommunications System) and UMTS evolved versions. 3GPP's long term evolution (LTE) and various versions based on LTE evolution are new versions of UMTS using E-UTRA. The communication system can also be a 5G communication system, a new radio (NR) and a 6G communication system. In addition, the communication system can also be applicable to future-oriented communication technologies, all of which are applicable to the technical solutions provided in the embodiments of the present disclosure.

[0050] The base station 101 is located at the access network side of the above-mentioned communication system, and is a network device with wireless transceiver functions or a chip or chip system that can be set in the device. The base station 101 includes, but is not limited to, an access point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a base band unit (BBU), a wireless relay node, a wireless backhaul node, a transmission point (TRP or transmission point, TP), etc. It can also be a 5G base station (e.g., a gNB or a transmission point (TRP or TP) in a new radio (NR) system), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point (e.g., a baseband unit (BBU) or a distributed unit (DU), a road side unit (ROU) with base station functions). The base station 101 also includes base stations in different networking modes, such as a master base station (e.g., a master evolved NodeB (MeNB)), a secondary base station (e.g., a secondary eNB (SeNB) or a secondary gNB (SgNB)). The base station 101 also includes different types, such as a ground base station, an aerial base station, and a satellite base station.

[0051] Terminal 102 is a device with wireless communication capabilities that can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted. It can also be deployed on water (e.g., on a ship). Terminal 102 can also be deployed in the air (e.g., on an airplane, balloon, or satellite). Terminal 102, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), or terminal device, is a device that provides voice and / or data connectivity to users. For example, terminal 102 includes handheld devices with wireless connection capabilities, vehicle-mounted devices, etc. Currently, the terminal 102 can be: a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), an in-vehicle device (such as a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed train, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal device in industrial control, a smart home device (such as a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, workshop equipment, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, an aerial device (such as an intelligent robot, a hot air balloon, a drone, an airplane), etc. In some application scenarios of this disclosure, terminal devices are often operated on the ground, such as vehicle-mounted devices. In this disclosure, for ease of description, chips deployed in such devices, such as system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions, may also be referred to as terminal devices.

[0052] The core network element 103 can be a physical device or a virtual device. Taking the 4G system as an example, the core network element 103 includes but is not limited to: a mobility management entity (MME), a serving gateway (SGW), and a public data network gateway (PGW). Taking the 5G system as an example, the core network element 103 includes but is not limited to: an access and mobility management function (AMF), a session management function (SMF), and a user plane function (UPF). It should be noted that the core network element 103 proposed in the present disclosure is also applicable to core network elements in future mobile communication technologies such as 6G systems.

[0053] It should be noted that the various embodiments of the present disclosure may refer to or draw upon each other. For example, for identical or similar operations, method embodiments, system embodiments, and apparatus embodiments may refer to each other without limitation. Figure 2 is a flow chart of a service establishment method provided by an embodiment of the present disclosure. As shown in Figure 2, the method is applied to a base station and includes steps 201-202.

[0054] 201. Determine a target communication system to which a service establishment request belongs, and obtain first wireless capability information of a terminal.

[0055] The first wireless capability information is the wireless capability information of the target communication system. Wireless capability information refers to a set of parameter data related to wireless communications supported by the terminal for the communication system. For example, the wireless capability information of the 5G system includes packet data convergence protocol (PDCP) parameters, radio link control (RLC) parameters, media access control (MAC) parameters, physical layer (PHY) parameters, radio frequency parameters, measurement parameters, etc.

[0056] In some implementations, the base station may determine its own communication system as the target communication system based on the service establishment request.

[0057] In some implementations, before step 201, the method further includes: the base station determining wireless capability information of the terminal in different communication systems. During the service establishment phase, the base station classifies the wireless capability information of the terminal in different communication systems into different levels, so that the communication system with the highest priority is selected as the target communication system in different service phases.

[0058] It should be noted that the wireless capability information of a terminal usually includes wireless capability information of multiple communication systems. Different terminals include different wireless capability information. The base station can classify the wireless capability information of the terminal in different communication systems according to the service stage of the terminal.

[0059] For example, the wireless capability information of the terminal is divided based on the communication system and can be divided into 5G system wireless capability information, 4G system wireless capability information, 4G-5G system dual connection wireless capability information, 3G system wireless capability information, etc. Taking the base station as a base station of the 5G system as an example, the base station can classify the 5G system as the system with the highest priority and classify other systems as systems with lower priority. The base station can also classify other systems into systems of different priorities. The present disclosure does not limit the number of priority classification levels.

[0060] It should be noted that the service establishment process can be divided into multiple stages, including pre-service establishment, service establishment phase, and post-service establishment, based on the service establishment request. The pre-service establishment phase can be the phase before the service establishment request is received, i.e., the service establishment preparation phase; the service establishment phase is the phase from the receipt of the service establishment request to the establishment of the service connection by the terminal. By prioritizing the wireless capability information of the terminal in different communication systems at different service establishment phases before service establishment, the communication system with the highest priority can be selected at each service phase, thereby reducing the amount of wireless capability information data acquired by the base station during the service establishment phase.

[0061] 202. Establish a service connection for the terminal based on the first wireless capability information.

[0062] Combined with the relevant description of 201 above, the wireless capability information of the terminal includes the wireless capability information of multiple communication systems. However, in the service establishment stage, the base station only needs to obtain the first wireless capability information of the target communication system to which the service establishment request belongs, and it can establish a service connection for the terminal based on the first wireless capability information.

[0063] Based on the above technical solution, the base station can determine the target communication system to which the service establishment request belongs, and obtain the first wireless capability information of the terminal in the target communication system. Since the first wireless capability information is the wireless capability information required for the service connection corresponding to the service establishment request requested by the terminal, the base station can establish a service connection for the terminal based on the obtained first wireless capability information. As for the wireless capability information of other communication systems, they are all non-essential wireless capability information. The base station does not obtain these non-essential wireless capability information when the terminal requests to establish a service connection. In this way, the present disclosure can reduce the amount of wireless capability information obtained by the base station during the service establishment phase, thereby reducing the impact of the communication environment on the terminal's reporting of wireless capability information, shortening the service establishment delay and improving the success rate of service establishment.

[0064] In some embodiments of the present disclosure, in combination with Figure 2, Figure 3 is a flow chart of another service establishment method according to an embodiment of the present disclosure. As shown in Figure 3, the above 201 can also be implemented through 301-302.

[0065] 301. Determine a target communication system to which the service establishment request belongs according to the service establishment request and device status.

[0066] Exemplarily, the device status may be the operating status of a base station and / or a terminal, and is used to characterize the status of device-related status parameters. For example, the device status of a base station includes the current uplink load level. The device status of a terminal includes the channel quality between the terminal and the base station, such as uplink channel quality and downlink channel quality.

[0067] For example, when the uplink load of the base station is lower than a preset threshold and the channel quality between the terminal and the base station is higher than a preset threshold, the base station may determine that the target communication system to which the service establishment request belongs includes the base station's own communication system and other communication systems. For example, if the base station is a 5G system base station, the base station's own communication system is the 5G system, and other communication systems may include 3G systems, 4G systems, etc.

[0068] When the uplink load of the base station is higher than a preset threshold, or the channel quality between the terminal and the base station is lower than a preset threshold, the base station may determine that the target communication system to which the service establishment request belongs is the base station's own communication system.

[0069] When the device is in good condition, the base station can normally obtain the wireless capability information of different communication systems of the terminal, which can meet both the terminal's service establishment needs and the terminal's needs other than service establishment (for example, the need to switch to another communication system). When the device is in poor condition, the base station can prioritize obtaining the first wireless capability information required for service establishment to ensure that the terminal can normally establish a service connection.

[0070] 302. Obtain first wireless capability information from stored information of an associated device.

[0071] The associated device is a device that stores the terminal's wireless capability information during the service connection establishment scenario. This associated device can be the terminal itself or a core network element that stores the terminal's wireless capability information. It should be understood that the terminal stores its wireless capability information, and therefore can be used as an associated device.

[0072] Exemplarily, when the associated device is a terminal, the base station may send a wireless capability query message to the terminal via an air interface. Accordingly, the terminal receives the wireless capability query message from the base station. In response to the wireless capability query message, the terminal sends a wireless capability response message carrying the first wireless capability information to the base station. Exemplarily, the wireless capability query message may be a UECapabilityEnquiry message, and the wireless capability response message may be a UECapabilityInformation message.

[0073] If the associated device is a core network element, the core network element will send a context message to the base station during the terminal's service establishment phase. Accordingly, the base station receives the context message from the core network element. This context message may carry the terminal's first wireless capability information. For example, this context message may be an InitialContextSetupRequest message.

[0074] In some implementations, the base station may determine a method for obtaining the first wireless capabilities information based on the storage status of the first wireless capabilities information in the associated device. In this way, the base station may select an appropriate method for obtaining the first wireless capabilities information based on the storage status of different devices in the associated device, thereby ensuring that subsequent terminals can normally establish service connections.

[0075] In some implementations, the base station may determine a manner of acquiring the first wireless capability information based on a device state.

[0076] Exemplarily, when the uplink load of the base station is less than a preset load threshold and the channel quality between the base station and the terminal is greater than a preset quality threshold, the base station obtains the first wireless capability information from the stored information of the terminal.

[0077] When the uplink load of the base station is greater than or equal to a preset load threshold, or the channel quality between the base station and the terminal is less than or equal to a preset quality threshold, the base station obtains the first wireless capability information from the storage information of the core network element.

[0078] It should be noted that the above-mentioned implementation methods proposed in the present disclosure may also be implemented in combination. For example, when the base station is able to determine the storage status of the first wireless capability information of the associated device, the base station determines the method for obtaining the first wireless capability information based on the storage status. When the storage status of the first wireless capability information of the associated device cannot be determined, the base station determines the method for obtaining the first wireless capability information based on the device status.

[0079] Based on the above technical solution, the base station in the present disclosure can determine the target communication system to which the service establishment request belongs in combination with the service establishment request and the device status, thereby avoiding the impact of device status problems on the terminal's service establishment. At the same time, the base station can obtain the first wireless capability information from the storage information of the associated device to facilitate the subsequent establishment of a service connection for the terminal.

[0080] In some embodiments of the present disclosure, in combination with Figure 3, Figure 4 is a flow chart of another service establishment method according to an embodiment of the present disclosure. As shown in Figure 4, the associated devices may include core network elements and terminals, and the above 302 may be implemented through 401-403.

[0081] 401. Determine a storage status of first wireless capability information by a core network element based on user access information of a terminal.

[0082] The user access information is used to represent the access status of the terminal to the target communication system. The storage status includes stored, not stored, to be updated, and unclear.

[0083] Stored means that the core network element has stored the wireless capability information of the terminal.

[0084] Not stored means that the core network element does not store the wireless capability information of the terminal.

[0085] To be updated means that the core network element needs to update the wireless capability information of the terminal, that is, the core network element needs to delete the previously stored wireless capability information of the terminal and re-acquire the wireless capability information of the terminal to ensure the timeliness of the wireless capability information.

[0086] Unclear means that the core network element is not clear whether it is necessary to update the wireless capability information of the terminal in different communication systems, that is, the core network element stores the wireless capability information of the terminal but is not instructed whether the information needs to be updated.

[0087] Exemplarily, the user access information may be carried in an RRCSetupRequest message or an RRCSetupComplete message.

[0088] 402. When the storage status is stored or unclear, the base station obtains the first wireless capability information from the storage information of the core network element.

[0089] If the storage status is stored or unclear, the core network element sends a context message carrying the first wireless capability information of the terminal to the base station based on the stored information. Therefore, the base station can obtain the first wireless capability information from the stored information of the core network element, thereby reducing additional air interface resource overhead.

[0090] 403. When the storage status is to be updated or not stored, obtain first wireless capability information from storage information of the terminal.

[0091] When the storage status is to be updated or not stored, the base station cannot obtain the first wireless capability information from the core network element. At this time, the base station can obtain the first wireless capability information from the storage information of the terminal.

[0092] Exemplarily, after receiving user access information from the terminal, the base station may directly obtain the first wireless capability information from the stored information of the terminal, thereby reducing the delay in establishing terminal services.

[0093] In some embodiments of the present disclosure, in combination with Figure 4, Figure 5 is a flow chart of another service establishment method according to an embodiment of the present disclosure. As shown in Figure 5, the above 401 can also be implemented through 501-502.

[0094] 501. Determine, based on user access information, an access status of a terminal to a target communication system and an update request for first wireless capability information.

[0095] Access status includes initial access, other system return or re-access.

[0096] Initial access refers to a terminal's initial access to a base station's communication system; return from another system refers to a terminal's reselection or redirection from another communication system back to the base station's communication system; and reaccess refers to a terminal's reaccess to the base station's communication system from its current system. When the terminal's access status for the target communication system is reaccess, the user access information may include a request to update the first wireless capability information.

[0097] Taking the 5G communication system as an example, the user access information can be carried in the RRCSetupRequest message or the RRCSetupComplete message. In this case, 501 can be implemented as follows:

[0098] When the base station receives an RRCSetupRequest message from the terminal with an InitialUE-Identity value of "randomValue", or when the base station receives an RRCSetupComplete message from the terminal with a TAU request carrying a 5GS registration type value of "initial registration", the base station determines that the terminal's access status to the target communication system is initial access.

[0099] When the base station receives an RRCSetupComplete message from the terminal and the value of guami-Type (GUAMI (Global Unique Asset Identifier)-type) is "mapped", or the base station receives a TAU request carried in an RRCSetupComplete message from the terminal containing Additional GUTI, or the base station receives a TAU request carried in an RRCSetupComplete message from the terminal containing EPS NAS message container(), the base station determines that the access status of the terminal to the target communication system is returned by other systems.

[0100] When the base station receives an RRCSetupRequest message from the terminal with an EstablishmentCause value of "mt-Access", or the base station receives an RRCSetupRequest message from the terminal with an EstablishmentCause value of "mo-Data", or the base station receives an RRCSetupRequest message from the terminal with an EstablishmentCause value of "mo-VoiceCall", or the base station receives an RRCSetupRequest message from the terminal with an EstablishmentCause value of "mo-VideoCall", or the base station receives an RRCSetupComplete message from the terminal and the TAU request carried does not include Additional GUTI and EPS NAS message container (EPS (Evolved Packet System) NAS message container), the base station determines that the terminal's access status to the target communication system is reaccess.

[0101] When the base station receives the NG-RAN Radio Capability Update (NG-RAN-RCU) value as "Needed" in the TAU request carried by the RRCSetupComplete message from the terminal, the base station determines the update request for the first radio capability information from the user access information.

[0102] When the base station receives a TAU request carried in the RRCSetupComplete message from the terminal that does not include NG-RAN Radio Capability Update (NG-RAN-RCU) or the value of NG-RAN Radio Capability Update (NG-RAN-RCU) is "Not Needed", the base station does not determine an update request for the first wireless capability information from the user access information, or determines from the user access information that the first wireless capability information does not need to be updated.

[0103] 502. Determine a storage status of the first wireless capability information by a core network element based on the access status and the update request.

[0104] Combined with the description in 501 above, when the access state is initial access, it means that the core network element does not store the wireless capability information of the terminal at this time. The base station can determine that the storage state of the first wireless capability information of the core network element is not stored.

[0105] When the access status is returned to other systems, since the systems are different, the core network element also does not store the wireless capability information of the terminal. The base station can determine that the storage status of the first wireless capability information of the core network element is not stored.

[0106] When the access state is re-access, since the terminal has not actually switched systems, the core network element stores the wireless capability information of the terminal. The base station can determine the storage status of the first wireless capability information in the core network element based on the update request.

[0107] When the base station determines from the user access information that an update request is being made for the first wireless capability information, the core network element will delete the previously stored wireless capability information of the terminal and retrieve it again. Therefore, the core network element will not send the wireless capability information of the terminal to the base station. The base station may determine that the core network element's storage status for the first wireless capability information is pending update.

[0108] When the base station does not determine an update request for the first wireless capability information from the user access information, or determines from the user access information that the first wireless capability information does not need to be updated, it means that the wireless capability information of the terminal stored in the core network network element is still valid. Therefore, the core network network element will send the wireless capability information of the terminal to the base station, and the base station can determine that the storage status of the first wireless capability information of the core network network element is unclear.

[0109] Based on the above technical solution, the base station can further determine the terminal's access status to the target communication system and the update request for the first wireless capability information based on the user access information, thereby more accurately determining the storage status of the core network network element for the first wireless capability information, so as to adopt an appropriate acquisition method to ensure that the terminal can establish a service connection normally.

[0110] In some embodiments of the present disclosure, in combination with Figure 3, Figure 6 is a flow chart of another service establishment method according to an embodiment of the present disclosure. As shown in Figure 6, after the above 301, the method further includes 601-602.

[0111] 601. Query the stored information of other base stations in the target communication system based on the terminal identifier in the user access information.

[0112] The terminal identifier may be a temporary mobile subscriber identity (TMSI) or an international mobile equipment identity software version (IMEISV).

[0113] Exemplarily, each base station may store the terminal identification of the accessed terminal and the wireless capability information of the terminal in different communication systems, so as to facilitate subsequent query of the stored information of each base station.

[0114] In some implementations, the base station may send a query message carrying a terminal identifier to other base stations in the target communication system.

[0115] The query message is used to query the storage information of other base stations in the target communication system.

[0116] 602. Acquire first wireless capability information from stored information of other base stations.

[0117] In some implementations, after receiving the query message, the other base station may query from the stored information based on the terminal identifier in the query message and send the first wireless capability information to the base station.

[0118] It should be noted that the base station can query its own stored information before querying the storage information of other base stations in the target communication system. If it stores the terminal identification of the terminal and the wireless capability information of the terminal in different communication systems, the base station can directly obtain the first wireless capability information from its own storage information, thereby reducing signaling overhead.

[0119] Based on the above technical solution, the base station can obtain the required first wireless capability information from other base stations in the target communication system through the terminal identifier, further reducing the service establishment delay.

[0120] In some embodiments of the present disclosure, in combination with Figure 3, Figure 7 is a flow chart of another service establishment method according to an embodiment of the present disclosure. As shown in Figure 7, the associated device is a terminal, and the above 302 can also be implemented through 701-703.

[0121] 701. Determine an acquisition strategy related to wireless capability information based on communication characteristic parameters of a base station.

[0122] In some implementations, the communication characteristic parameters are used to characterize the communication status between the base station and the terminal. The base station determines an acquisition strategy based on the communication characteristic parameters to avoid adverse effects of the communication status on service establishment of the terminal.

[0123] In some implementations, the communication characteristic parameters are information corresponding to base station operational indicators, such as network traffic, service connectivity rate, and call drop rate. The base station determines an acquisition strategy based on the operational indicators, which can specifically avoid problems existing in current communication systems.

[0124] When the operational indicators include network traffic and service connection rate, the communication characteristic parameters include uplink load and / or channel quality. Alternatively, when the operational indicators include call drop rate and service connection rate, the communication characteristic parameters include channel quality. Alternatively, when the operational indicators include only service connection rate, the communication characteristic parameters include uplink load.

[0125] In some implementations, the communication characteristic parameters include the uplink load of the base station and / or the channel quality between the base station and the terminal. When the uplink load is greater than a first threshold and / or the channel quality is less than a second threshold, the base station may determine the acquisition strategy to be the first acquisition strategy. When the uplink load is less than or equal to the first threshold and / or the channel quality is greater than or equal to the second threshold, the base station determines the acquisition strategy to be the second acquisition strategy.

[0126] 702. When the acquisition strategy is the first acquisition strategy, only the first wireless capability information is acquired from the stored information of the terminal.

[0127] In combination with the description in 701 above, when the uplink load is greater than the first threshold and / or the channel quality is less than the second threshold, there may be a failure problem in data transmission between the base station and the terminal. Therefore, the base station can only obtain the first wireless capability information from the stored information of the terminal to reduce the amount of data transmission between the base station and the terminal, thereby improving the success rate of the base station in obtaining the first wireless capability information.

[0128] 703. When the acquisition strategy is the second acquisition strategy, simultaneously acquire the first wireless capability information and the second wireless capability information from the stored information of the terminal.

[0129] The second wireless capability information is wireless capability information of the terminal in a non-target communication system.

[0130] In combination with the description in the above 701, when the uplink load is less than or equal to the first threshold and / or the channel quality is greater than or equal to the second threshold, normal data transmission can be carried out between the base station and the terminal. Therefore, the base station can simultaneously obtain the wireless capability information under the target communication system and the wireless capability information under the non-target communication system from the stored information of the terminal to meet other subsequent business needs of the terminal (for example, switching communication systems), thereby reducing signaling overhead.

[0131] Based on the above technical solution, the base station can select an acquisition strategy related to wireless capability information according to communication characteristic parameters, thereby specifically avoiding problems existing in the current communication system.

[0132] In addition, after the base station obtains the first wireless capability information and establishes a service connection for the terminal based on the first wireless capability information, the base station may also obtain wireless capability information under a non-target communication system to meet other service requirements of the terminal.

[0133] In some embodiments of the present disclosure, in combination with FIG. 2 , FIG. 8 is a flow chart of another service establishment method provided by an embodiment of the present disclosure. As shown in FIG. 8 , after the above 202 , the method further includes 801 .

[0134] 801. Acquire wireless capability information of a terminal in a non-target communication system.

[0135] The base station may obtain the wireless capability information of the non-target communication system based on the method of obtaining the first wireless capability information involved in the above embodiment.

[0136] In some implementations, the base station may obtain the wireless capability information of the non-target communication system from stored information of the associated device.

[0137] Exemplarily, the base station may obtain the wireless capability information of the non-target communication system from a context message from a core network element.

[0138] In some implementations, the base station may also query the stored information of itself or other base stations in the target communication system based on the terminal identifier in the user access information, and obtain the wireless capability information of the non-target communication system from the stored information of itself or other base stations.

[0139] For example, each base station may store the terminal identifier of the accessed terminal and the wireless capability information of the terminal in different communication systems, so that the base station can query and obtain the wireless capability information in non-target communication systems from itself or other base stations.

[0140] Since the base station obtains the wireless capability information of the non-target communication system after the terminal establishes a service connection, the base station may also query the stored information of itself or other base stations in the target communication system based on the code stream or feature information of the first wireless capability information, and obtain the wireless capability information of the non-target communication system from the stored information of itself or other base stations.

[0141] For example, each base station can store the code stream or feature information of the first wireless capability information of the accessed terminal and the wireless capability information of the terminal in different communication systems, so that the base station can query and obtain the wireless capability information in non-target communication systems from itself or other base stations.

[0142] The base station may also send a wireless capability query message to the terminal via the air interface. Accordingly, the terminal receives the wireless capability query message from the base station. In response to the wireless capability query message, the terminal sends a wireless capability response message carrying wireless capability information under the non-target communication system to the base station.

[0143] In addition, the base station may also determine a corresponding processing strategy based on the communication characteristic parameters of the base station.

[0144] Exemplarily, when the uplink load is less than or equal to a first threshold and the channel quality is greater than or equal to a second threshold, the base station obtains the wireless capability information of the terminal in the non-target communication system.

[0145] When the uplink load is greater than the first threshold, or the channel quality is less than the second threshold, the base station may adopt a corresponding compatibility strategy when it is necessary to use the relevant communication system.

[0146] For example, when the terminal triggers switching to another communication system, the base station can redirect the terminal to the other communication system through a redirection process. In this way, the base station can meet the business needs of the terminal without obtaining wireless capability information of other communication systems.

[0147] The following describes the confusion detection method provided by the embodiment of the present disclosure in combination with actual scenarios.

[0148] Figure 9 is a diagram of a service establishment scenario provided by an embodiment of the present disclosure. As shown in Figure 9, the service establishment scenario includes base station 1, base station 2, base station 3, a terminal, and core network elements. Base stations 1 and 2 are target communication systems (e.g., 5G systems), and base station 3 is another communication system (e.g., 4G systems).

[0149] For example, after the terminal accesses base station 1, base station 1 determines that the terminal's access status for 5G is initial access based on the value of "randomValue" in the InitialUE-Identity in the RRCSetupRequest message. That is, the core network element does not store the wireless capability information for the 5G system. Base station 1 can directly obtain the wireless capability information for the 5G system after receiving the RRCSetupRequest message, reducing the delay in establishing terminal services.

[0150] For example, after the terminal accesses base station 1, when base station 1 cannot determine the terminal's access status to 5G based on the user access information, when the uplink load of base station 1 is less than the preset load threshold and the channel quality between base station 1 and the terminal is greater than the preset quality threshold, base station 1 can directly obtain the wireless capability information under the 5G system after receiving the RRCSetupRequest message, thereby reducing the delay in establishing the terminal service.

[0151] For example, after the terminal accesses base station 1, when base station 1 cannot determine the terminal's access status to 5G based on the user access information, when the uplink load of base station 1 is greater than or equal to the preset load threshold, or the channel quality between base station 1 and the terminal is less than the preset quality threshold, base station 1 can obtain the wireless capability information under the 5G system from the storage information of the core network network element.

[0152] If there is no wireless capability information under the 5G system in the storage information of the core network network element, base station 1 can query its own or base station 2's storage information in 5G based on the terminal identifier in the user access information, and obtain the wireless capability information under the 5G system from its own or base station 2's storage information.

[0153] If base station 1 or base station 2 does not store 5G wireless capability information, base station 1 may send a wireless capability query message to the terminal via the air interface. The terminal then receives the wireless capability query message from base station 1. In response to the wireless capability query message, the terminal sends a wireless capability response message to base station 1, carrying the 5G wireless capability information.

[0154] For example, after the terminal accesses base station 1, base station 1 determines that the terminal's access status for 5G is re-access based on the value of EstablishmentCause in the RRCSetupRequest message as "mo-Data", and no request to update the wireless capability information under the 5G system is determined from the user access information. Base station 1 can obtain the wireless capability information under the 5G system from the storage information of the core network network element.

[0155] Exemplarily, after the terminal accesses base station 1, it is triggered to switch to base station 3 due to special reasons (such as weak field reasons). When base station 3 detects that the signal of base station 2 is better, it redirects the terminal to base station 2. Base station 2 determines that the terminal's access status for 5G is returned to other systems based on the Additional GUTI information contained in the TAU request carried in the RRCSetupComplete message. Since base station 1 stores the terminal's TMSI and wireless capability information, if there is an XN link between base station 1 and base station 2. Base station 2 can query the stored information of base station 1 based on the TMSI identifier in the user access information, and obtain the wireless capability information under the 5G system from the stored information of base station 1. If there is no communication link between base station 1 and base station 2, base station 2 fails to query the wireless capability information under the 5G system based on the TMSI identifier in the user access information. At this time, base station 2 can send a wireless capability query message to the terminal through the air interface. Accordingly, the terminal receives the wireless capability query message from base station 2. In response to the wireless capability query message, the terminal sends a wireless capability response message carrying the wireless capability information under the 5G system to base station 2.

[0156] Exemplarily, the terminal accesses from base station 1 and the service connection is successfully established. The context message from the core network network element does not include the wireless capability information under the 4G system. Base station 1 can query its own or base station 2's storage information in 5G based on the IMEISV identifier, TMSI identifier or the code stream or feature information of the wireless capability information under the 5G system, and obtain the wireless capability information under the 4G system from its own or base station 2's storage information.

[0157] Exemplarily, the terminal accesses from base station 1 and the service connection is successfully established. The context message from the core network element does not include the wireless capability information under the 4G system. Base station 1 does not query itself in 5G or base station 2 stores the wireless capability information under the 4G system based on the code stream or feature information of the IMEISV identifier, TMSI identifier or wireless capability information under the 5G system. When the uplink load is less than or equal to the first threshold and the channel quality is greater than or equal to the second threshold, base station 1 obtains the wireless capability information of the terminal under the 4G system from the stored information of the terminal. When the uplink load is greater than the first threshold, or the channel quality is less than the second threshold, when the terminal triggers a switch to the 4G system, base station 1 can redirect the terminal to the 4G system through a redirection process.

[0158] For example, after the terminal accesses base station 1, base station 1 determines that the terminal's access status for 5G is initial access based on the value of "randomValue" in the InitialUE-Identity in the RRCSetupRequest message, that is, the core network element does not store wireless capability information under the 5G system. When the uplink load is less than or equal to the first threshold and the channel quality is greater than or equal to the second threshold, base station 1 can obtain the wireless capability information under the 5G system and the wireless capability information under other systems from the stored information of the terminal.

[0159] It is understandable that in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0160] The embodiments of the present disclosure can divide the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0161] FIG10 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure, which can execute the service detection method provided by the above method embodiment. As shown in FIG10 , the communication device 100 includes: a processing unit 1001.

[0162] The processing unit 1001 is configured to determine a target communication system to which the service establishment request belongs, and obtain first wireless capability information of a terminal, where the first wireless capability information is wireless capability information of the target communication system.

[0163] The processing unit 1001 is configured to establish a service connection for the terminal based on the first wireless capability information.

[0164] In some embodiments, the processing unit 1001 is used to: determine the wireless capability information of the terminal in different communication systems; and in the service establishment stage, classify the wireless capability information of the terminal in different communication systems so that the communication system with the highest priority is selected as the target communication system in different service stages.

[0165] In some embodiments, the communication apparatus 100 further includes a communication unit 1002. The processing unit 1001 is configured to determine, based on the service establishment request and the device status, a target communication system to which the service establishment request belongs; and the communication unit 1002 is configured to obtain first wireless capability information from stored information of an associated device, where the associated device is a device that stores wireless capability information of the terminal in the service connection establishment scenario.

[0166] In some embodiments, the associated device includes a core network network element and a terminal; the processing unit 1001 is used to: determine the storage status of the core network network element for the first wireless capability information based on the user access information of the terminal; the communication unit 1002 is used to: when the storage status is stored or unclear, obtain the first wireless capability information from the storage information of the core network network element; or, when the storage status is to be updated or not stored, obtain the first wireless capability information from the storage information of the terminal.

[0167] In some embodiments, the processing unit 1001 is configured to determine, based on user access information, an access status of the terminal to the target communication system and an update request for the first wireless capability information, where the access status includes initial access, return to other systems, or re-access.

[0168] The processing unit 1001 is configured to determine, based on the access status and the update request, a storage status of the first wireless capability information by a core network element.

[0169] In some embodiments, the processing unit 1001 is used to query the stored information of other base stations in the target communication system based on the terminal identifier in the user access information; and the communication unit 1002 is used to obtain the first wireless capability information from the stored information of other base stations.

[0170] In some embodiments, the associated device is a terminal, and the processing unit 1001 is used to: determine an acquisition strategy related to wireless capability information based on the communication characteristic parameters of the base station; the communication unit 1002 is used to: when the acquisition strategy is the first acquisition strategy, only obtain the first wireless capability information from the storage information of the terminal; when the acquisition strategy is the second acquisition strategy, simultaneously obtain the first wireless capability information and the second wireless capability information from the storage information of the terminal, and the second wireless capability information is the wireless capability information of the terminal in a non-target communication system.

[0171] In some embodiments, the communication characteristic parameters include the uplink load of the base station and / or the channel quality between the base station and the terminal; the processing unit 1001 is used to: when the uplink load is greater than the first threshold and / or the channel quality is less than the second threshold, determine that the acquisition strategy is the first acquisition strategy.

[0172] The processing unit 1001 is configured to: determine that the acquisition strategy is the second acquisition strategy when the uplink load is less than or equal to the first threshold and / or the channel quality is greater than or equal to the second threshold.

[0173] In some embodiments, the communication characteristic parameters are relevant information corresponding to the operating indicators of the base station.

[0174] In some embodiments, when the operation indicators include network traffic and service connection rate, the communication characteristic parameters include uplink load and / or channel quality; or,

[0175] In the case where the operational indicators include call drop rate and service connection rate, the communication characteristic parameters include channel quality; or,

[0176] When the operation indicator only includes the service connection rate, the communication characteristic parameter includes the uplink load.

[0177] In some embodiments, the processing unit 1001 is configured to: obtain wireless capability information of the terminal in a non-target communication system.

[0178] When the functions of the above-mentioned integrated modules are implemented in hardware, the embodiments of the present disclosure provide another structure of the communication device involved in the above-mentioned embodiments. Figure 11 is a structural diagram of another communication device provided by an embodiment of the present disclosure. As shown in Figure 11, the communication device 110 includes: a memory 1101, a processor 1102, a communication interface 1103, and a bus 1104.

[0179] The memory 1101 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store dynamic information and instructions, an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0180] Processor 1102 may be a logic block, module, and circuit that implements or executes the various exemplary methods described in conjunction with the embodiments of the present disclosure. Processor 1102 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. Processor 1102 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP (digital signal processor) and a microprocessor, and the like.

[0181] The communication interface 1103 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0182] In some implementations, the memory 1101 may exist independently of the processor 1102. The memory 1101 may be connected to the processor 1102 via a bus 1104 and used to store instructions or program codes. When the processor 1102 calls and executes the instructions or program codes stored in the memory 1101, the method described in any of the embodiments of the present disclosure can be implemented.

[0183] In some implementations, the memory 1101 may also be integrated with the processor 1102 .

[0184] Bus 1104 can be an Extended Industry Standard Architecture (EISA) bus, for example. Bus 1104 can be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, FIG11 shows bus 1104 with only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0185] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the method described in any of the above embodiments.

[0186] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0187] An embodiment of the present disclosure provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method described in any one of the above embodiments.

[0188] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A service establishment method, applied to a base station, wherein: The method comprises: Determine a target communication system to which the service establishment request belongs, and obtain first wireless capability information of a terminal, where the first wireless capability information is wireless capability information of the target communication system; A service connection is established for the terminal based on the first wireless capability information.

2. The method according to claim 1, wherein Before determining the target communication system to which the service establishment request belongs and obtaining the first wireless capability information of the terminal, the method further includes: Determining wireless capability information of the terminal in different communication systems; In the service establishment phase, the wireless capability information of the terminal in different communication systems is classified into levels so that the communication system with the highest priority is selected as the target communication system in different service phases.

3. The method according to claim 1, wherein The determining the target communication system to which the service establishment request belongs and obtaining the first wireless capability information of the terminal includes: determining a target communication system to which the service establishment request belongs according to the service establishment request and the device status; The first wireless capability information is obtained from storage information of an associated device, where the associated device is a device that stores the wireless capability information of the terminal in the service connection establishment scenario.

4. The method according to claim 3, wherein: The associated devices include core network elements and terminals; The acquiring the first wireless capability information from the stored information of the associated device includes: determining, based on user access information of the terminal, a storage status of the first wireless capability information by the core network element; When the storage status is stored or unclear, obtaining the first wireless capability information from the storage information of the core network element; or When the storage status is to be updated or not stored, the first wireless capability information is acquired from storage information of the terminal.

5. The method according to claim 4, wherein The determining, based on the user access information of the terminal, a storage status of the first wireless capability information by the core network element includes: Determining, based on the user access information, an access status of the terminal to the target communication system and an update request for the first wireless capability information, the access status including initial access, return to another system, or re-access; Based on the access status and the update request, a storage status of the first wireless capability information by the core network element is determined.

6. The method according to claim 3, wherein: After determining the target communication system to which the service establishment request belongs according to the service establishment request and the device status, the method further includes: querying stored information of other base stations in the target communication system based on the terminal identifier in the user access information; The first wireless capability information is acquired from stored information of the other base stations.

7. The method according to claim 3, wherein: The associated device is a terminal, and obtaining the first wireless capability information from stored information of the associated device includes: determining, based on the communication characteristic parameters of the base station, an acquisition strategy related to wireless capability information; When the acquisition strategy is the first acquisition strategy, acquiring only the first wireless capability information from the stored information of the terminal; When the acquisition strategy is the second acquisition strategy, the first wireless capability information and the second wireless capability information are simultaneously acquired from the stored information of the terminal, where the second wireless capability information is the wireless capability information of the terminal in a non-target communication system.

8. The method according to claim 7, wherein: The communication characteristic parameters include an uplink load of the base station and / or a channel quality between the base station and the terminal; and determining an acquisition strategy related to wireless capability information based on the communication characteristic parameters of the base station includes: When the uplink load is greater than a first threshold and / or the channel quality is less than a second threshold, determining that the acquisition strategy is the first acquisition strategy; In a case where the uplink load is less than or equal to a first threshold and / or the channel quality is greater than or equal to a second threshold, the acquisition strategy is determined to be the second acquisition strategy.

9. The method according to claim 7, wherein: The communication characteristic parameters are relevant information corresponding to the operation indicators of the base station.

10. The method according to claim 9, wherein: In the case where the operation indicators include network traffic and service connection rate, the communication characteristic parameters include uplink load and / or channel quality; or, In the case where the operation indicator includes the call drop rate and the service connection rate, the communication characteristic parameter includes the channel quality; or, In the case where the operation indicator only includes the service connection rate, the communication characteristic parameter includes the uplink load.

11. The method according to claim 1, wherein After establishing a service connection for the terminal, the method further includes: Acquire wireless capability information of the terminal in a non-target communication system.

12. A communication device comprising: A memory and a processor; wherein the memory and the processor are coupled; the memory is used to store instructions executable by the processor; when the processor executes the instructions, it performs the method according to any one of claims 1 to 11.

13. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, which, when executed on a computer, enable the computer to perform the method according to any one of claims 1 to 11.

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