Terminal capability changing method, terminal and network side equipment

Abstract

The embodiment of the invention discloses a terminal capability changing method, a terminal and network side equipment, and belongs to the technical field of communication, and the terminal capability changing method comprises the steps that the terminal sends a first message; wherein the terminal supports dual access or multi-access, and the first message comprises at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave an RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a terminal capability change method, a terminal and a network side device. Background Art

[0002] Dual steering refers to supporting simultaneous connection to two 3rd Generation Partnership Project (3GPP) networks for terminals that support dual wireless capabilities. The different scenarios covered include, for example: two terrestrial Radio Access Network (RAN) nodes connected to the same Public Land Mobile Network (PLMN); two different PLMNs, connected to a terrestrial RAN node and a satellite RAN node respectively. At present, the relevant technology has not provided relevant solutions for terminal capabilities in dual access scenarios, which may cause the RAN node to configure unreasonable configurations for the terminal, resulting in the terminal being unable to work properly under unreasonable network configurations. Summary of the invention

[0003] The embodiments of the present application provide a terminal capability change method, a terminal, and a network-side device, which can solve the problem that the terminal may not work normally under unreasonable network configuration due to the failure to provide relevant solutions for terminal capabilities in dual access scenarios.

[0004] In a first aspect, a terminal capability change method is provided, comprising: a terminal sends a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0005] In a second aspect, a terminal capability change method is provided, including: a network side device receives a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network indication of related information about dual access or multiple access.

[0006] According to a third aspect, a terminal capability change device is provided, which is applied to a terminal and includes: a sending module, used to send a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0007] In a fourth aspect, a terminal capability change device is provided, which is applied to a network side device, including: a receiving module, used to receive a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network information indication about dual access or multiple access.

[0008] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0009] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0010] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0011] In the eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network indication of related information about dual access or multiple access.

[0012] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0013] In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0014] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0015] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] In an embodiment of the present application, a terminal supporting dual access or multi-access sends a first message, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state. This is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0018] Figure 2 is a schematic flow chart of a method for changing terminal capabilities according to an embodiment of the present application;

[0019] Figure 3 is a schematic flow chart of a method for changing terminal capabilities according to an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of the structure of a terminal capability changing device according to an embodiment of the present application;

[0021] Figure 5 is a schematic diagram of the structure of a terminal capability changing device according to an embodiment of the present application;

[0022] Figure 6 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0023] Figure 7 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

[0024] Figure 8 It is a schematic diagram of the structure of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0026] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0028] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless 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) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0029] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0030] The terminal capability changing method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0031] like Figure 2 As shown, an embodiment of the present application provides a terminal capability change method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed in the terminal. The method includes the following steps.

[0032] S202: The terminal sends a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave a radio resource control (Radio Resource Control, RRC) connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0033] It should be noted that the first message mentioned in each embodiment of the present application may be a signaling message or may include multiple signaling messages. In the case of multiple signaling messages, any order of sending is supported. For example, when a terminal sends a first message for the first time, it may carry a terminal capability division indication; when a terminal sends a first message for the second time, it may carry a terminal capability change indication.

[0034] In one example, the terminal sends a first message to the network (access network device or core network device), and the first message includes a terminal capability change indication. For example, the terminal supports 4Tx uplink multiple-input multiple-output (MIMO) on the first access network device. When the terminal enters the connected state on the second access network device and requires 2Tx capability, the terminal needs to send a first message to indicate to the first access network device that its uplink MIMO capability has changed and that the 2Tx capability needs to be allocated to the second access network device. This example prevents the network from configuring the terminal in dual access or multi-access scenarios that exceed the terminal capability, effectively improving the performance of the terminal working in multiple networks at the same time.

[0035] In one example, the terminal sends a first message to the network (access network device or core network device), and the first message includes a terminal capability division indication. Optionally, the terminal can be notified after the network division is completed, and the terminal then sends a first message, and the first message includes a terminal capability change indication. The execution process can refer to the previous example. Alternatively, the terminal can be directly reconfigured after the network division is completed, so as to avoid the configuration exceeding the terminal capability and effectively improve the working performance of the terminal working in multiple networks at the same time.

[0036] In one example, the terminal sends a first message to the network (access network device or core network device), and the first message includes an indication that the terminal needs to leave the RRC connection state. For example, the terminal accesses the first access network device and the second access network device, and the terminal sends a first message to the first access network device. At this time, the first access network device can directly notify the second access network device or forward the notification to the second access network device through the transparent container of the core network device, so that the second access network device can use all the capabilities of the terminal. This example ensures that the network will not configure the terminal in dual access or multi-access scenarios, effectively improving the working performance of the terminal working in multiple networks at the same time.

[0037] In one example, the terminal sends a first message, and the first message includes an indication that the terminal needs to leave the RRC connection state. After that, the terminal can also send a preference indication before leaving the RRC connection state to the core network through the first message. For example, the terminal sends a preference indication before leaving the RRC connection state to the core network, indicating that when the terminal leaves the RRC connection state on the first access network device, the core network can instruct the second access network device to perform full capability recovery, partial capability recovery (for example, capability recovery ratio) on the terminal according to the corresponding indication information, or not to recover or directly leave the RRC connection state. This example allows the terminal to tell the core network in advance in dual access or multi-access scenarios how to instruct the second access to perform capability recovery when the first access network device leaves the RRC connection state, thereby preventing the second access network from making unreasonable configurations on the terminal and effectively improving the working performance of the terminal in the second access network.

[0038] In one example, the terminal sends a first message to the network (access network device or core network device). The first message includes a terminal support information indication. For example, the terminal reports to the network through the first message that it supports corresponding capability information, and then the terminal sends the first message again, and the first message includes a terminal capability change indication or a capability division indication. This example allows the network to know the capabilities supported by the terminal and configure the terminal reasonably.

[0039] Optionally, the first message is carried by one of the following messages: 1) terminal assistance information message (UEAssistance Information message); 2) terminal capability information (UE Capability Information message) message; 3) RRC dedicated signaling message, such as RRC connection establishment completion message; 4) non-access stratum (Non-AccessStratum, NAS) message.

[0040] Optionally, the first message reuses a capability limitation message of a multi-user identification card (Multi-Universal Subscriber Identity Module, MUSIM) in the related technology, and the first message also includes: purpose indication information, and the purpose indication information is used to indicate that the purpose of the first message is for dual access or multi-access. The first message in this example can reuse existing signaling messages, without the need to design new signaling messages, which can reduce signaling costs.

[0041] The terminal capability change method provided in the embodiment of the present application supports a dual-access or multi-access terminal to send a first message, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state. This is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time.

[0042] Optionally, when the first message includes an indication of a terminal capability change, the first message includes at least one of the following: 1) capability change requirement information; 2) a capability identifier (ID), wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0043] The capability change requirement information may include or may be used to indicate at least one of the following:

[0044] 1) MIMO capabilities, including, for example: the maximum number of uplink or downlink multiple-input multiple-output MIMO layers supported; the reduced or limited number of uplink or downlink MIMO layers.

[0045] 2) Frequency band capability or frequency band combination capability, such as restricted frequency band capability or frequency band combination capability.

[0046] 3) Measurement capability, for example, the maximum number of frequency points to be measured, whether a measurement gap is required, etc.

[0047] 4) Sounding Reference Signal (SRS) switching capability.

[0048] 5) Dual-Connectivity (DC) or carrier aggregation (CA) capabilities may include at least one of the following: support for a maximum, reduced or limited number of secondary cells (SCells); configuration preference information of SCells, such as activation / deactivation / release / some SCells, and whether to support secondary cell groups (SCG); configuration preference information of SCGs, such as activation / deactivation / release / some SCGs.

[0049] 6) Bandwidth capabilities, including, for example, reduced or limited uplink or downlink bandwidth capabilities.

[0050] 7) Power capabilities, including, for example, maximum, reduced, or limited power supported.

[0051] 8) Supported feature set.

[0052] 9) Supported feature set combinations.

[0053] 10) Supported sending and receiving capabilities.

[0054] 11) Maximum supported rate.

[0055] Optionally, when the first message includes an indication of terminal capability division, the first message includes at least one of the following: 1) request for division capability information, used to request the network to perform capability division for the terminal; 2) expected network division capability information, including at least one of the following: capability ID expected by the access network device to be assigned by the terminal; dual access or multi-access capability division ratio expected by the access network device to be assigned by the terminal; traffic division ratio expected by the core network device to be assigned by the terminal; capability change requirement information; and configuration upper limit of the terminal.

[0056] Optionally, in the case where the first message includes an indication that the terminal needs to leave the RRC connected state, the first message includes at least one of the following: 1) information requesting to leave the RRC connected state; 2) preference information for leaving the RRC connected state, for example, including RRC idle state, RRC inactive state, and outOfConnected state; 3) the reason for leaving the RRC connected state is dual access or multiple access.

[0057] Optionally, when the first message includes a terminal support information indication, the first message includes at least one of the following: 1) the terminal supports dual access or multiple access; 2) a public land mobile network PLMN that supports dual access or multiple access; 3) at least one capability supported by the terminal; 4) a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0058] Optionally, in the case where the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will restore capabilities when the terminal leaves the RRC connection state on the first access network device.

[0059] Optionally, the capability recovery information includes or is used to indicate at least one of the following: 1) recovery of all capabilities; 2) recovery of partial capabilities; 3) no recovery of capabilities; 4) leaving the RRC connection state, used to indicate to the second access network device that the terminal leaves the RRC connection state.

[0060] Optionally, in each of the above embodiments, after the terminal sends the first message, the method further includes: the terminal starting a first timer; wherein, during the operation of the first timer, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal is allowed to send the first message again. The first timer can prevent signaling overhead caused by frequent sending of the first message.

[0061] Optionally, in each of the above embodiments, after the terminal sends the first message, the method further includes: the terminal receiving a second message, where the second message includes at least one of the following:

[0062] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capability allocated to the access network device accessed by the terminal. For example, the first message sent by the terminal includes the terminal capability division indication, the second message received by the terminal includes the dual access or multi-access capability split ratio, and the terminal may subsequently send the first message carrying the terminal capability change indication.

[0063] 2) Dual access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal. For example, the first message sent by the terminal includes the terminal capability division indication, the second message received by the terminal includes the dual access or multi-access traffic split ratio, and the terminal may subsequently send the first message carrying the terminal capability change indication.

[0064] 3) Capability ID, used to indicate the capability ID assigned to the access network device to which the terminal is connected, and different capability IDs correspond to different capability subsets. For example, the first message sent by the terminal includes the terminal capability division indication, and the second message received by the terminal includes the capability ID. The terminal may also subsequently send a first message carrying the terminal capability change indication.

[0065] 4) Capability change indication information, used to indicate the capabilities allocated by the terminal to the access network device to be accessed. For example, the first message sent by the terminal includes the terminal capability division indication, the second message received by the terminal includes the capability change indication information, and the terminal may subsequently send the first message carrying the terminal capability change indication.

[0066] 5) First configuration information, where the first configuration information is used to reconfigure the terminal. For example, the first message sent by the terminal includes a terminal capability change indication or a terminal capability division indication, and the second message received by the terminal includes the first configuration information.

[0067] Optionally, in each of the above embodiments, the first message includes an indication that the terminal needs to leave the RRC connection state. After the terminal sends the first message, the method further includes: the terminal receives first configuration information, and the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

[0068] In this embodiment, after the terminal sends the first message, the method further includes: the terminal starts a second timer; when the second timer times out, the terminal enters the RRC idle state. The second timer can limit the terminal behavior when the terminal does not receive a response from the network side.

[0069] Optionally, in each of the above embodiments, after the terminal sends the first message, the method further includes: the terminal receiving a first response message, where the first response message includes at least one of the following:

[0070] 1) Information indicating acceptance or rejection of the first message.

[0071] 2) Information used to reconfigure the terminal.

[0072] Optionally, in each of the above embodiments, before the terminal sends the first message, the method further includes: the terminal receiving second configuration information, where the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following:

[0073] 1) First indication information, used to indicate a capability change supporting the terminal or to send a capability division request.

[0074] 2) Duration of a first timer, where the first timer is used to limit the terminal from sending a first message.

[0075] 3) The duration of a second timer, where the second timer is used for the terminal to enter the RRC idle state.

[0076] 4) For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

[0077] Optionally, the second configuration information is carried by one of the following: 1) a system information (SI) message; 2) an RRC reconfiguration message.

[0078] Combination of the above Figure 2 The terminal capability change method according to the embodiment of the present application is described in detail. Figure 3 A terminal capability change method according to another embodiment of the present application is described in detail. It can be understood that the interaction between the network side device and the terminal described by the network side device is similar to Figure 2 The descriptions on the terminal side in the methods shown are the same or corresponding, and to avoid repetition, the relevant descriptions are appropriately omitted.

[0079] Figure 3 This is a schematic diagram of the implementation flow of the terminal capability change method in the embodiment of the present application, which can be applied to network side devices. Figure 3 As shown, the method 300 includes the following steps.

[0080] S302: The network side device receives a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network indication of information related to dual access or multiple access.

[0081] The network side device may be an access network device for dual access or multi-access terminals; the network side device may also be a core network device.

[0082] When the network side device is an access network device, the first message may come from a terminal or a core network device; when the network side device is a core network device, the first message comes from a terminal.

[0083] In an embodiment of the present application, a network side device receives a first message related to a terminal, wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network indication of information related to dual access or multiple access, which is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time.

[0084] Optionally, as an embodiment, when the first message includes a terminal capability change indication, the first message includes at least one of the following: capability change requirement information; capability identification ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0085] Optionally, as an embodiment, when the first message includes a terminal capability division indication, the first message includes at least one of the following: request for division capability information, used to request the network to perform capability division for the terminal; expected network division capability information, including at least one of the following: capability ID expected by the access network device to be assigned by the terminal; dual access or multi-access capability division ratio expected by the access network device to be assigned by the terminal; traffic division ratio expected by the core network device to be assigned by the terminal; capability change requirement information; and configuration upper limit of the terminal.

[0086] Optionally, as an embodiment, when the first message includes an indication that the terminal needs to leave the RRC connection state, the first message includes at least one of the following: information requesting to leave the RRC connection state; preference information for leaving the RRC connection state; the reason for leaving the RRC connection state is dual access or multiple access.

[0087] Optionally, as an embodiment, when the first message includes a terminal support information indication, the first message includes at least one of the following: the terminal supports dual access or multiple access; a PLMN that supports dual access or multiple access; at least one capability supported by the terminal; a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0088] Optionally, as an embodiment, when the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will restore capabilities when the terminal leaves the RRC connection state on the first access network device.

[0089] The capability recovery information includes or is used to indicate at least one of the following: recovery of all capabilities; recovery of partial capabilities; no recovery of capabilities; leaving the RRC connection state, which is used to indicate to the second access network device that the terminal leaves the RRC connection state.

[0090] Optionally, as an embodiment, the capability change requirement information includes or is used to indicate at least one of the following:

[0091] 1) MIMO capabilities, including, for example: the maximum number of uplink or downlink multiple-input multiple-output MIMO layers supported; the reduced or limited number of uplink or downlink MIMO layers.

[0092] 2) Frequency band capability or frequency band combination capability, such as restricted frequency band capability or frequency band combination capability.

[0093] 3) Measurement capability, for example, the maximum number of frequency points to be measured, whether a measurement gap is required, etc.

[0094] 4) Sounding Reference Signal (SRS) switching capability.

[0095] 5) Dual-Connectivity (DC) or carrier aggregation (CA) capabilities may include at least one of the following: support for a maximum, reduced or limited number of secondary cells (SCells); configuration preference information of SCells, whether to support secondary cell groups (SCGs); configuration preference information of SCGs.

[0096] 6) Bandwidth capabilities, including, for example, reduced or limited uplink or downlink bandwidth capabilities.

[0097] 7) Power capabilities, including, for example, maximum, reduced, or limited power supported.

[0098] 8) Supported feature set.

[0099] 9) Supported feature set combinations.

[0100] 10) Supported sending and receiving capabilities.

[0101] 11) Maximum supported rate.

[0102] Optionally, as an embodiment, the first message is carried by one of the following messages: 1) terminal assistance information message; 2) terminal capability information message; 3) RRC dedicated signaling message; 4) non-access layer NAS message.

[0103] Optionally, as an embodiment, after the network side device receives the first message, the method further includes: the network side device sends a second message to the terminal, and the second message includes at least one of the following:

[0104] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capability allocated to the access network device accessed by the terminal.

[0105] 2) Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal.

[0106] 3) Capability ID, which is used to indicate the capability ID allocated to the access network device to which the terminal is connected. Different capability IDs correspond to different capability subsets.

[0107] 4) Capability change indication information, used to indicate the capabilities allocated to the access network device to which the terminal is connected.

[0108] 5) First configuration information, where the first configuration information is used to reconfigure the terminal.

[0109] Optionally, as an embodiment, the network side device is a first access network device, and the method further includes: the first access network device sends a third message to the second access network device, and the third message includes at least one of the following:

[0110] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capabilities allocated to the access network device accessed by the terminal.

[0111] 2) Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal.

[0112] 3) Capability ID, used to indicate the capability ID allocated to the access network device accessed by the terminal, and different capability IDs correspond to different capability subsets.

[0113] 4) Capability change indication information, used to indicate the capabilities allocated to the access network device accessed by the terminal.

[0114] 5) First configuration information, where the first configuration information is used to reconfigure the terminal.

[0115] The first access network device and the second access network device are access network devices accessed by the terminal.

[0116] Optionally, as an embodiment, the first message includes an indication that the terminal needs to leave the RRC connection state. After the network side device receives the first message, the method further includes: the network side device sends first configuration information to the terminal, and the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

[0117] Optionally, as an embodiment, the network side device is a first access network device, and the method further includes: the first access network device sends the first configuration information through a second access network device.

[0118] Optionally, as an embodiment, the first message comes from the terminal, and after the network side device receives the first message, the method also includes: the network side device sends a first response message to the terminal, and the first response message includes at least one of the following: 1) information indicating acceptance or rejection of the first message; 2) information used to reconfigure the terminal.

[0119] Optionally, as an embodiment, after the network side device receives the first message, the method further includes: the network side device sends second configuration information to the terminal, the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following:

[0120] 1) First indication information, used to indicate a capability change supporting the terminal or to send a capability division request.

[0121] 2) Duration of a first timer, where the first timer is used to limit the terminal from sending a first message.

[0122] 3) The duration of a second timer, where the second timer is used for the terminal to enter the RRC idle state.

[0123] 4) For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

[0124] Optionally, as an embodiment, the second configuration information is carried by one of the following: 1) SI message; 2) RRC reconfiguration message.

[0125] Optionally, as an embodiment, the network side device receives a first message related to a core network device, and the first message includes: network indications about dual access or multi-access related information, including at least one of the following: the terminal establishes a connection with a first access network device; the terminal establishes a connection with a second access network device; dual access or multi-access is enabled; auxiliary information related to dual access or multi-access; resource negotiation information between the first access network device and the second access network device; wherein, the first access network device and the second access network device are access network devices accessed by the terminal.

[0126] Optionally, as an embodiment, the network indicates that information related to dual access or multi-access comes from a core network device, and after the network side device receives the first message, the method also includes: the network side device sends first configuration information to the terminal, and the first configuration information is used to reconfigure the capabilities of the terminal.

[0127] Optionally, as an embodiment, the method further includes: the network side device sends the first configuration information to the second access network device, and the first configuration information is also used by the second access network device to reconfigure the capability of the terminal.

[0128] Optionally, as an embodiment, the network side device is a first access network device, and the method also includes: when the network side device releases the terminal to an RRC idle state or an RRC inactive state, the second indication information is sent to a second access network device, wherein the second indication information is used to instruct the second access network device to use the terminal capabilities, or to indicate to the second access network device that the terminal is currently in a single radio access technology (Radio Access Technology, RAT) scenario, or to indicate that the terminal is in an RRC inactive state; the first access network device and the second access network device are access network devices accessed by the terminal.

[0129] To illustrate the terminal capability changing method provided in the embodiments of the present application in detail, several specific embodiments will be described below.

[0130] In one embodiment, the terminal reports a terminal capability change indication to an access network device (or RAN node, RAN device, etc.), and the embodiment includes the following steps:

[0131] Step 1: The terminal sends a first message to the access network device, where the first message includes a terminal capability change indication, requesting a capability change and hoping that the network configuration does not exceed the corresponding capability requirement. The first message includes at least one of the following: 1) terminal support information, used to indicate the services supported by the terminal; 2) capability change requirement information; 3) capability identification (ID), where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0132] The terminal support information may include or be used to indicate at least one of the following:

[0133] 1) The terminal supports dual access or multi-access.

[0134] 2) Public Land Mobile Network (PLMN) supporting dual access or multiple access.

[0135] 3) At least one capability supported by the terminal, such as the maximum capability supported by the terminal.

[0136] 4) Capability ID, where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0137] The capability change requirement information may include or may be used to indicate at least one of the following:

[0138] 1) MIMO capabilities, including, for example: the maximum number of uplink or downlink multiple-input multiple-output MIMO layers supported; the reduced or limited number of uplink or downlink MIMO layers.

[0139] 2) Frequency band capability or frequency band combination capability, such as restricted frequency band capability or frequency band combination capability.

[0140] 3) Measurement capability, for example, the maximum number of frequency points to be measured, whether a measurement gap is required, etc.

[0141] 4) Sounding Reference Signal (SRS) switching capability.

[0142] 5) Dual-Connectivity (DC) or carrier aggregation (CA) capabilities may include at least one of the following: support for a maximum, reduced or limited number of secondary cells (SCells); configuration preference information of SCells, such as activation / deactivation / release / some SCells, and whether to support secondary cell groups (SCG); configuration preference information of SCGs, such as activation / deactivation / release / some SCGs.

[0143] 6) Bandwidth capabilities, including, for example, reduced or limited uplink or downlink bandwidth capabilities.

[0144] 7) Power capabilities, including, for example, maximum, reduced, or limited power supported.

[0145] 8) Supported feature set.

[0146] 9) Supported feature set combinations.

[0147] 10) Supported sending and receiving capabilities.

[0148] 11) Maximum supported rate.

[0149] In this embodiment, for example, the terminal supports 4Tx uplink MIMO on the first access network device. When the terminal enters the connected state on the second access network device and needs 2Tx capability, the terminal needs to indicate to the first access network device that its uplink MIMO capability has changed and needs to allocate 2Tx capability to the second access network device.

[0150] For another example, when some bandwidth conflicts occur between two access network devices, the terminal needs to report the currently restricted band or bandwidth combinations to the network, and the network performs reasonable band configuration based on the band information provided by the terminal.

[0151] Optionally, the first message is carried by one of the following messages: 1) terminal assistance information message; 2) terminal capability information message; 3) RRC dedicated signaling message, such as RRC connection establishment completion message; 4) Non-Access Stratum (NAS) message.

[0152] Optionally, after the terminal sends the first message, the method further includes: the terminal starts a first timer; wherein, while the first timer is running, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal allows the first message to be sent again.

[0153] Step 2: The terminal receives a first response message, where the first response message includes at least one of the following contents:

[0154] 1) Information indicating acceptance or rejection of the first message.

[0155] 2) Information used to reconfigure the terminal: the access network device reconfigures the terminal according to the capability change indication of the terminal to prevent the configurations on both sides from exceeding the total capability of the terminal.

[0156] Step 3: The terminal completes the corresponding capability change reconfiguration according to the first response message.

[0157] In one embodiment, the terminal multiplexes MUSIM related messages to report capability limitations to the access network device. The embodiment includes the following steps:

[0158] Step 1: The UE sends a first message to the access network device, where the first message includes a terminal capability change indication, requesting that the access network device needs a capability change and hoping that the network configuration does not exceed the corresponding capability requirement. The first message includes at least one of the following: 1) terminal support information, used to indicate the services supported by the terminal; 2) capability change requirement information; 3) capability identification (ID), where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0159] For the specific content of the first message, please refer to the previous embodiment.

[0160] In this embodiment, the first message may reuse the capability limitation signaling in the MUSIM scenario, and the first message may further include the following contents: Dual access or multiple access purpose: the terminal indicates to the network that the first message is for dual access or multiple access.

[0161] Step 2: The terminal receives a first response message, where the first response message includes at least one of the following contents:

[0162] 1) Information indicating acceptance or rejection of the first message.

[0163] 2) Information used to reconfigure the terminal: the access network device reconfigures the terminal according to the capability change indication of the terminal to prevent the configurations on both sides from exceeding the total capability of the terminal.

[0164] Step 3: The terminal completes the corresponding capability change reconfiguration according to the first response message.

[0165] In one embodiment, the core network / base station (the base station may be a first access network device, and the same applies to the following) sends a capability segmentation strategy to the terminal. The embodiment includes the following steps:

[0166] Step 1: The terminal sends a first message to a core network function / base station, wherein the first message includes at least one of a terminal capability change indication and a terminal support information indication.

[0167] The terminal support information may include or be used to indicate at least one of the following:

[0168] 1) The terminal supports dual access or multi-access.

[0169] 2) Public Land Mobile Network (PLMN) supporting dual access or multiple access.

[0170] 3) At least one capability supported by the terminal, such as the maximum capability supported by the terminal.

[0171] 4) Capability ID, where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0172] Step 2: Optionally, the terminal may also send a first message to the core network function / base station to request the network to perform capability division (ie, the first message includes a terminal capability division indication), wherein the first message in this step includes at least one of the following contents;

[0173] 1) Request for capability division information, used to request the network to perform capability division for the terminal; 2) Capability information of expected network division, including at least one of the following: capability ID that the terminal expects the access network device to assign; dual access or multi-access capability division ratio that the terminal expects the access network device to assign; traffic division ratio that the terminal expects the core network device to assign; capability change requirement information; configuration upper limit of the terminal.

[0174] Optionally, step 2 may be omitted, and the network directly divides the terminal capabilities.

[0175] Step 3a: Optionally, the base station / core network function sends capability split information to the second base station (directly or through the core network function); (the second base station is a base station used by another connection of the UE, or a second RAN, a second access network device, etc.)

[0176] Step 3: The terminal receives a response message from the base station / core network, where the response message includes at least one of the following:

[0177] 1) The network accepts or rejects the first message.

[0178] 2) Dual access capability split ratio, which is used to indicate the ratio of the capability allocated to the access network device to which the terminal accesses. For example, the core network divides the capability ratio of the two access network devices to which the terminal accesses based on a certain strategy, where the capability split ratio can be the split ratio of the total capability or the split ratios of different capabilities.

[0179] 3) Capability ID, used to indicate the capability ID assigned to the access network device to which the terminal is connected, and different capability IDs correspond to different capability subsets. Different capability IDs are assigned to the access network devices on both sides, and different capability IDs correspond to different capability subsets.

[0180] Optionally, the core network function / base station may also send the response message to two access network devices respectively. The two access network devices obtain corresponding capability segmentation information and directly configure it to the UE (step 3a), and then proceed to step 5.

[0181] Step 4: The terminal performs capability segmentation according to the capability segmentation information in the response message and the capability percentage indicated under dual access, and again reports the capability limitation to the access network device through the first message, wherein the first message includes at least one of the following contents: 1) terminal support information, used to indicate the services supported by the terminal; 2) capability change requirement information; 3) capability identification (ID), wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0182] The terminal tells the two access network devices that they need to change their capabilities through the first message sent this time, hoping that the network configuration does not exceed the corresponding capability requirements.

[0183] The network can configure a first timer for the first message. After the terminal sends the first message, the method also includes: the terminal starts the first timer; wherein, while the first timer is running, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal allows the first message to be sent again.

[0184] 1) Information indicating acceptance or rejection of the first message.

[0185] 2) Information used to reconfigure the terminal: the access network device reconfigures the terminal according to the capability change indication of the terminal to prevent the configurations on both sides from exceeding the total capability of the terminal.

[0186] Step 6: The terminal completes the corresponding capability change reconfiguration according to the response message.

[0187] In one embodiment, the terminal reports preference information of the capability segmentation strategy, and the embodiment includes the following steps:

[0188] Step 1: The terminal sends a first message, wherein the first message includes at least one of a terminal capability change indication and a terminal support information indication.

[0189] The terminal support information may include or be used to indicate at least one of the following:

[0190] 1) The terminal supports dual access or multi-access.

[0191] 2) Public Land Mobile Network (PLMN) supporting dual access or multiple access.

[0192] 3) At least one capability supported by the terminal, such as the maximum capability supported by the terminal.

[0193] 4) Capability ID, where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0194] Step 2: Optionally, the UE may also send a first message to the core network function / base station to report the capability partitioning preference and request the network to perform capability partitioning, wherein the first message includes at least one of the following contents:

[0195] 1) Requesting for allocation of capability information, for requesting to allocate corresponding capabilities to the access network device accessed by the terminal based on the capabilities of the terminal.

[0196] 2) Capability information of expected network division, including at least one of the following: capability ID expected to be allocated by the access network device; dual access capability division ratio expected to be allocated by the access network device; capability change requirement information; and configuration upper limit of the terminal.

[0197] The network can configure a first timer for the first message. After the terminal sends the first message, the first timer is started. During the operation of the first timer, the terminal no longer sends the same information. When the first timer expires, the terminal directly applies the capability change configuration in the first message or resends the first message.

[0198] Step 3a: Optionally, the base station / core network function sends capability split information to the second base station (directly or through the core network function) based on the split preference; (the second base station is a base station used by another connection of the UE).

[0199] Step 3: The terminal receives a response message from the core network function / base station, where the response message includes at least one of the following:

[0200] 1) The network accepts or rejects the first message.

[0201] 2) Dual access capability split ratio, which is used to indicate the ratio of the capability allocated to the access network device to which the terminal accesses. For example, the core network divides the capability ratio of the two access network devices to which the terminal accesses based on a certain strategy, where the capability split ratio can be the split ratio of the total capability or the split ratios of different capabilities.

[0202] 3) Capability ID, used to indicate the capability ID assigned to the access network device to which the terminal is connected, and different capability IDs correspond to different capability subsets. Different capability IDs are assigned to the access network devices on both sides, and different capability IDs correspond to different capability subsets.

[0203] 4) Corresponding capability change indications, such as how many MIMO and CC are configured on the two access network devices respectively.

[0204] Optionally, the core network function / base station may also send the response message directly to the two access network devices respectively. The two access network devices obtain the corresponding capability segmentation information and directly configure it to the UE (step 3a), and then proceed to step 5.

[0205] Step 4: The UE performs capability splitting according to the capability splitting information in the response message and applies the capability percentage indicated under dual access, and again reports the capability restriction to the access network device through the first message, wherein the first message includes at least one of the following contents: 1) terminal support information, used to indicate the services supported by the terminal; 2) capability change requirement information; 3) capability identification (ID), wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0206] The network can configure a first timer for the first message. After the terminal sends the first message, the method also includes: the terminal starts the first timer; wherein, while the first timer is running, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal allows the first message to be sent again.

[0207] Step 5: The UE receives the response message and completes the corresponding capability reconfiguration, wherein the response message includes at least one of the following contents:

[0208] 1) Information indicating acceptance or rejection of the first message.

[0209] 2) Information used to reconfigure the terminal: the access network device reconfigures the terminal according to the capability change indication of the terminal to prevent the configurations on both sides from exceeding the total capability of the terminal.

[0210] Step 6: The terminal completes the corresponding capability change reconfiguration according to the response message.

[0211] The difference between the above two embodiments is that in the former embodiment, the core network sends capability segmentation information based on the network side's policy, while in the latter embodiment, the terminal requests the network side to segment capabilities based on its own capability segmentation preference, and the decision-making entities of the policies are different.

[0212] In one embodiment, the base station configures the UE accordingly based on the information sent by the core network. The embodiment includes the following steps:

[0213] Step 1: A first access network device receives a first message from a core network, where the first message includes an instruction to reconfigure capabilities of a terminal, including at least one of the following:

[0214] 1) Second RAN establishment or second leg establishment.

[0215] 2) First RAN establishment or first leg establishment.

[0216] 3) Dual access or multi-access enabled.

[0217] 4) Auxiliary information related to dual access or multi-access, such as UE-related information (such as GUTI, allowing dual steering services) and second access network equipment-related information (such as gNB ID, support for dual steering, and supported modes).

[0218] 5) Resource negotiation information between the second access network device and the first access network device, such as information related to the terminal capabilities currently occupied by the second access network device, frequency information of the second access network device, frequency information allocated to Pcell and / or Scell ​​in the second access network device, etc. Optionally, the interaction information between the MN and the SN in the DC scenario can be included in the resource negotiation information between the second access network device and the first access network device.

[0219] Step 2: The first access network device reconfigures resources for the UE based on the indication information of the core network, including change information of UE capabilities, resource negotiation information, etc., or the first access network device executes resource reconfiguration of the terminal as instructed by the second access network device based on the indication information of the core network.

[0220] Step 2a: Optionally, the first access network device may notify the second access network device of the corresponding reconfiguration information directly or through the core network, and the second access network device reconfigures the UE, where the reconfiguration information includes the corresponding capability segmentation information or capability change information of the UE.

[0221] In one embodiment, the terminal releases the RRC connection of a certain access network device based on an RRC request. The embodiment includes the following steps:

[0222] Step 1: The UE reports support-related capabilities to two access network devices through a first message, wherein the first message is the same message sent to two different access network devices respectively, wherein the first message includes terminal support information, which is used to indicate services supported by the terminal, and the terminal support information may include or be used to indicate at least one of the following:

[0223] 1) The terminal supports dual access or multi-access.

[0224] 2) Public Land Mobile Network (PLMN) supporting dual access or multiple access.

[0225] 3) At least one capability supported by the terminal, such as the maximum capability supported by the terminal.

[0226] 4) Capability ID, where different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0227] 5) For the purpose of dual access or multiple access, the terminal is supported to indicate that it is allowed to leave the RRC connected state.

[0228] Optionally, the network may configure whether the terminal can provide relevant auxiliary information on whether leaving the RRC connection state is allowed in a dual access or multi-access scenario.

[0229] Step 2: The terminal again instructs the first access network device through the first message that it needs to leave the RRC connection state for the purpose of dual access or multiple access.

[0230] Optionally, after sending the first message, the terminal starts a second timer; when the second timer expires, the terminal directly enters the RRC idle state.

[0231] Step 3: The UE enters the RRCIDLE / INACTIVE state by receiving the RRC release message sent by the first access network device.

[0232] Step 4: The UE receives the RRC reconfiguration message from the second access network device, and reconfigures the UE capabilities supported by the second access network device, where the reconfiguration includes all capabilities of the UE.

[0233] In one embodiment, the first access network device releases the RRC connection, and the core network function / base station instructs the second access network device to use all capabilities of the UE. The embodiment includes the following steps:

[0234] Step 1: The first access network device releases the RRC connection to an idle or inactive state.

[0235] Step 2: The core network function / base station performs one of the following actions:

[0236] 1) When the first access network device releases the UE supporting dual steering to the RRC IDLE state, the core network function / base station indicates that the second access network device is currently in a single RAT scenario, and the second access network device uses all capabilities of the UE by default. Optionally, the second access network device may obtain all capabilities of the UE through the UE capability information reported by the UE or through the core network by pushing all capabilities of the UE to the second access network device; (the base station may directly instruct the second access network device, or forward it to the second access network device through the core network function).

[0237] 2) When the first access network device releases the UE supporting dual steering to the RRC INACTIVE state, the core network function / base station indicates to the second access network device that the terminal is currently in a single RAT scenario, or indicates that the terminal is in the RRC INACTIVE state. The second access network device uses all capabilities of the UE by default. The first access network device tells the core network function through the RRC INACTIVETRANSITION REPORT to carry relevant information, or the core network function forwards it to the second access network device; optionally, the second access network device may obtain the UE capability information through the UE capability information reported by the UE or through the core network pushing all capabilities of the UE to the second access network device.

[0238] The terminal capability change method provided in the embodiment of the present application can be executed by a terminal capability change device. In the embodiment of the present application, the terminal capability change device provided in the embodiment of the present application is described by taking the terminal capability change method executed by the terminal capability change device as an example.

[0239] Figure 4 1 is a schematic diagram of the structure of a terminal capability change device according to an embodiment of the present application, which can be applied to a terminal. Figure 4 As shown, the device 400 includes the following modules.

[0240] The sending module 402 is used to send a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0241] In an embodiment of the present application, a terminal supporting dual access or multi-access sends a first message, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state. This is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time.

[0242] Optionally, when the first message includes an indication of a terminal capability change, the first message includes at least one of the following: 1) capability change requirement information; 2) a capability identifier (ID), wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0243] The capability change requirement information may include or may be used to indicate at least one of the following:

[0244] 1) MIMO capabilities, including, for example: the maximum number of uplink or downlink multiple-input multiple-output MIMO layers supported; the reduced or limited number of uplink or downlink MIMO layers.

[0245] 2) Frequency band capability or frequency band combination capability, such as restricted frequency band capability or frequency band combination capability.

[0246] 3) Measurement capability, for example, the maximum number of frequency points to be measured, whether a measurement gap is required, etc.

[0247] 4) Sounding Reference Signal (SRS) switching capability.

[0248] 5) Dual-Connectivity (DC) or carrier aggregation (CA) capabilities may include at least one of the following: support for a maximum, reduced or limited number of secondary cells (SCells); configuration preference information of SCells, whether to support secondary cell groups (SCGs); configuration preference information of SCGs.

[0249] 6) Bandwidth capabilities, including, for example, reduced or limited uplink or downlink bandwidth capabilities.

[0250] 7) Power capabilities, including, for example, maximum, reduced, or limited power supported.

[0251] 8) Supported feature set.

[0252] 9) Supported feature set combinations.

[0253] 10) Supported sending and receiving capabilities.

[0254] 11) Maximum supported rate.

[0255] Optionally, when the first message includes an indication of terminal capability division, the first message includes at least one of the following: 1) request for division capability information, used to request the network to perform capability division for the terminal; 2) expected network division capability information, including at least one of the following: capability ID expected by the access network device to be assigned by the terminal; dual access or multi-access capability division ratio expected by the access network device to be assigned by the terminal; traffic division ratio expected by the core network device to be assigned by the terminal; capability change requirement information; and configuration upper limit of the terminal.

[0256] Optionally, in the case where the first message includes an indication that the terminal needs to leave the RRC connected state, the first message includes at least one of the following: 1) information requesting to leave the RRC connected state; 2) preference information for leaving the RRC connected state, for example, including RRC idle state, RRC inactive state, and outOfConnected state; 3) the reason for leaving the RRC connected state is dual access or multiple access.

[0257] Optionally, when the first message includes a terminal support information indication, the first message includes at least one of the following: 1) the terminal supports dual access or multiple access; 2) a public land mobile network PLMN that supports dual access or multiple access; 3) at least one capability supported by the terminal; 4) a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0258] Optionally, in the case where the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will restore capabilities when the terminal leaves the RRC connection state on the first access network device.

[0259] Optionally, the capability recovery information includes or is used to indicate at least one of the following: 1) recovery of all capabilities; 2) recovery of partial capabilities; 3) no recovery of capabilities; 4) leaving the RRC connection state, used to indicate to the second access network device that the terminal leaves the RRC connection state.

[0260] Optionally, in each of the above embodiments, the device also includes a processing module for starting a first timer; wherein, while the first timer is running, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal is allowed to send the first message again.

[0261] Optionally, in each of the above embodiments, the device further includes a receiving module, configured to receive a second message, wherein the second message includes at least one of the following:

[0262] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capability allocated to the access network device accessed by the terminal.

[0263] 2) Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal.

[0264] 3) Capability ID, which is used to indicate the capability ID allocated to the access network device to which the terminal is connected. Different capability IDs correspond to different capability subsets.

[0265] 4) Capability change indication information, used to indicate the capabilities allocated to the access network device to which the terminal is connected.

[0266] 5) First configuration information, where the first configuration information is used to reconfigure the terminal.

[0267] Optionally, in each of the above embodiments, the first message includes an indication that the terminal needs to leave the RRC connection state, and the device also includes a receiving module for receiving first configuration information, the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

[0268] In this embodiment, the device further includes a processing module, which is used to start a second timer; when the second timer times out, the terminal enters an RRC idle state.

[0269] Optionally, in each of the above embodiments, the apparatus further includes a receiving module, configured to receive a first response message, wherein the first response message includes at least one of the following:

[0270] 1) Information indicating acceptance or rejection of the first message.

[0271] 2) Information used to reconfigure the terminal.

[0272] Optionally, in each of the above embodiments, the apparatus further includes a receiving module, configured to receive second configuration information, where the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following:

[0273] 1) First indication information, used to indicate a capability change supporting the terminal or to send a capability division request.

[0274] 2) Duration of a first timer, where the first timer is used to limit the terminal from sending a first message.

[0275] 3) The duration of a second timer, where the second timer is used for the terminal to enter the RRC idle state.

[0276] 4) For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

[0277] Optionally, the second configuration information is carried by one of the following: 1) a system information (SI) message; 2) an RRC reconfiguration message.

[0278] According to the device 400 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 400 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 200, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0279] The terminal capability changing device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0280] Figure 5 1 is a schematic diagram of the structure of a terminal capability change device according to an embodiment of the present application, which can be applied to network side devices. Figure 5 As shown, the device 500 includes the following modules.

[0281] The receiving module 502 is used to receive a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network indication of related information about dual access or multiple access.

[0282] In an embodiment of the present application, a network side device receives a first message related to a terminal, wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network information indication about dual access or multiple access. This is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time.

[0283] Optionally, as an embodiment, when the first message includes a terminal capability change indication, the first message includes at least one of the following: capability change requirement information; capability identification ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability that is supported, reduced or restricted by the terminal.

[0284] Optionally, as an embodiment, when the first message includes a terminal capability division indication, the first message includes at least one of the following: request for division capability information, used to request the network to perform capability division for the terminal; expected network division capability information, including at least one of the following: capability ID expected by the access network device to be assigned by the terminal; dual access or multi-access capability division ratio expected by the access network device to be assigned by the terminal; traffic division ratio expected by the core network device to be assigned by the terminal; capability change requirement information; and configuration upper limit of the terminal.

[0285] Optionally, as an embodiment, when the first message includes an indication that the terminal needs to leave the RRC connection state, the first message includes at least one of the following: information requesting to leave the RRC connection state; preference information for leaving the RRC connection state; the reason for leaving the RRC connection state is dual access or multiple access.

[0286] Optionally, as an embodiment, when the first message includes a terminal support information indication, the first message includes at least one of the following: the terminal supports dual access or multiple access; a PLMN that supports dual access or multiple access; at least one capability supported by the terminal; a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal.

[0287] Optionally, as an embodiment, when the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will restore capabilities when the terminal leaves the RRC connection state on the first access network device.

[0288] The capability recovery information includes or is used to indicate at least one of the following: recovery of all capabilities; recovery of partial capabilities; no recovery of capabilities; leaving the RRC connection state, which is used to indicate to the second access network device that the terminal leaves the RRC connection state.

[0289] Optionally, as an embodiment, the capability change requirement information includes or is used to indicate at least one of the following:

[0290] 1) MIMO capabilities, including, for example: the maximum number of uplink or downlink multiple-input multiple-output MIMO layers supported; the reduced or limited number of uplink or downlink MIMO layers.

[0291] 2) Frequency band capability or frequency band combination capability, such as restricted frequency band capability or frequency band combination capability.

[0292] 3) Measurement capability, for example, the maximum number of frequency points to be measured, whether a measurement gap is required, etc.

[0293] 4) Sounding Reference Signal (SRS) switching capability.

[0294] 5) Dual-Connectivity (DC) or carrier aggregation (CA) capabilities may include at least one of the following: support for a maximum, reduced or limited number of secondary cells (SCells); configuration preference information of SCells, whether to support secondary cell groups (SCGs); configuration preference information of SCGs.

[0295] 6) Bandwidth capabilities, including, for example, reduced or limited uplink or downlink bandwidth capabilities.

[0296] 7) Power capabilities, including, for example, maximum, reduced, or limited power supported.

[0297] 8) Supported feature set.

[0298] 9) Supported feature set combinations.

[0299] 10) Supported sending and receiving capabilities.

[0300] 11) Maximum supported rate.

[0301] Optionally, as an embodiment, the first message is carried by one of the following messages: 1) terminal assistance information message; 2) terminal capability information message; 3) RRC dedicated signaling message; 4) non-access layer NAS message.

[0302] Optionally, as an embodiment, the network side device further includes a sending module, configured to send a second message to the terminal, wherein the second message includes at least one of the following:

[0303] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capability allocated to the access network device accessed by the terminal.

[0304] 2) Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal.

[0305] 3) Capability ID, which is used to indicate the capability ID allocated to the access network device to which the terminal is connected. Different capability IDs correspond to different capability subsets.

[0306] 4) Capability change indication information, used to indicate the capabilities allocated to the access network device to which the terminal is connected.

[0307] 5) First configuration information, where the first configuration information is used to reconfigure the terminal.

[0308] Optionally, as an embodiment, the network side device is a first access network device, and the network side device further includes a sending module, configured to send a third message to the second access network device, and the third message includes at least one of the following:

[0309] 1) Dual access or multi-access capability split ratio, used to indicate the ratio of the capabilities allocated to the access network device accessed by the terminal.

[0310] 2) Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal.

[0311] 3) Capability ID, used to indicate the capability ID allocated to the access network device accessed by the terminal, and different capability IDs correspond to different capability subsets.

[0312] 4) Capability change indication information, used to indicate the capabilities allocated to the access network device accessed by the terminal.

[0313] 5) First configuration information, where the first configuration information is used to reconfigure the terminal.

[0314] The first access network device and the second access network device are access network devices accessed by the terminal.

[0315] Optionally, as an embodiment, the first message includes an indication that the terminal needs to leave the RRC connection state, and the network side device also includes a sending module for sending first configuration information to the terminal, the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

[0316] Optionally, as an embodiment, the network side device is a first access network device, and the network side device also includes a sending module for sending the first configuration information through a second access network device.

[0317] Optionally, as an embodiment, the first message comes from the terminal, and the network side device also includes a sending module for sending a first response message to the terminal, and the first response message includes at least one of the following: 1) information indicating acceptance or rejection of the first message; 2) information for reconfiguring the terminal.

[0318] Optionally, as an embodiment, the network side device further includes a sending module, configured to send second configuration information to the terminal, wherein the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following:

[0319] 1) First indication information, used to indicate a capability change supporting the terminal or to send a capability division request.

[0320] 2) Duration of a first timer, where the first timer is used to limit the terminal from sending a first message.

[0321] 3) The duration of a second timer, where the second timer is used for the terminal to enter the RRC idle state.

[0322] 4) For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

[0323] Optionally, as an embodiment, the second configuration information is carried by one of the following: 1) SI message; 2) RRC reconfiguration message.

[0324] Optionally, as an embodiment, the network's indication of information related to dual access or multi-access includes at least one of the following: the terminal establishes a connection with a first access network device; the terminal establishes a connection with a second access network device; dual access or multi-access is enabled; auxiliary information related to dual access or multi-access; resource negotiation information between the first access network device and the second access network device; wherein the first access network device and the second access network device are access network devices accessed by the terminal.

[0325] Optionally, as an embodiment, the network indicates dual access or multi-access related information from a core network device, and the network side device also includes a sending module for sending first configuration information to the terminal, and the first configuration information is used to reconfigure the capabilities of the terminal.

[0326] Optionally, as an embodiment, the network side device further includes a sending module for sending the first configuration information to the second access network device, and the first configuration information is also used by the second access network device to reconfigure the capability of the terminal.

[0327] Optionally, as an embodiment, the network side device is a first access network device, and the network side device also includes a sending module for sending a second indication information to a second access network device when releasing the terminal to an RRC idle state or an RRC inactive state, wherein the second indication information is used to indicate that the second access network device uses the terminal capabilities, or indicates that the terminal in the second access network is currently in a single RAT scenario, or indicates that the terminal is in an RRC inactive state; the first access network device and the second access network device are access network devices to which the terminal accesses.

[0328] According to the device 500 of the embodiment of the present application, the process of the method 300 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 500 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 300, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0329] The terminal capability changing device provided in the embodiment of the present application can achieve Figures 2 to 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0330] Optional, such as Figure 6 As shown, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, and the memory 602 stores a program or instruction that can be run on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned terminal capability change method embodiment, and can achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned terminal capability change method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0331] The embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is used to send a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0332] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.

[0333] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0334] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0335] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device. Generally, the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0336] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0337] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0338] Among them, the radio frequency unit 701 can be used to send a first message; wherein, the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state.

[0339] In an embodiment of the present application, a terminal supporting dual access or multi-access sends a first message, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, and a preference indication before the terminal leaves the RRC connection state. This is beneficial to preventing the network from configuring the terminal with a configuration that exceeds the terminal capability, resulting in the terminal being unable to work normally under unreasonable network configuration, and is beneficial to improving the working performance of the terminal when working in two or more networks at the same time.

[0340] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the terminal capability change in the method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0341] The embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to receive a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: a terminal capability change indication, a terminal capability division indication, an indication that the terminal needs to leave the RRC connection state, a terminal support information indication, a preference indication before the terminal leaves the RRC connection state, and a network information indication about dual access or multiple access. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

[0342] The present application embodiment also provides a network side device. Figure 8 As shown, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82, and the radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0343] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83, which includes a baseband processor.

[0344] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged. Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call the program in the memory 85 to execute the network device operations shown in the above method embodiment.

[0345] The network side device may further include a network interface 86, which is, for example, a Common Public Radio Interface (CPRI).

[0346] The network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute Figure 5 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0347] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned terminal capability change method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0348] The processor is the processor in the terminal described in the above embodiment. The readable storage medium may be non-volatile or non-transient. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0349] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned terminal capability change method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0350] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0351] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned terminal capability change method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0352] An embodiment of the present application also provides a terminal capability change system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the terminal capability change method as described above, and the network side device can be used to execute the steps of the terminal capability change method as described above.

[0353] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0354] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0355] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for changing terminal capabilities, characterized in that: include: The terminal sends a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: Terminal capability change indication, terminal capability division indication, indication that the terminal needs to leave the radio resource control RRC connected state, terminal support information indication, and preference indication before the terminal leaves the RRC connected state.

2. The method according to claim 1, characterized in that In the case where the first message includes a terminal capability change indication, the first message includes at least one of the following: capability change requirement information; capability identification ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported, reduced or restricted by the terminal; or, In the case where the first message includes a terminal capability division indication, the first message includes at least one of the following: request division capability information, used to request the network to perform capability division for the terminal; capability information of expected network division, including at least one of the following: capability ID that the terminal expects the access network device to allocate; dual access or multi-access capability division ratio that the terminal expects the access network device to allocate; traffic division ratio that the terminal expects the core network device to allocate; capability change requirement information; configuration upper limit of the terminal; or, In the case where the first message includes an indication that the terminal needs to leave the RRC connected state, the first message includes at least one of the following: information requesting to leave the RRC connected state; preference information for leaving the RRC connected state; the reason for leaving the RRC connected state is dual access or multiple access; or, In the case where the first message includes a terminal support information indication, the first message includes at least one of the following: the terminal supports dual access or multiple access; a public land mobile network PLMN supporting dual access or multiple access; at least one capability supported by the terminal; a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal; or, In the case where the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will recover capabilities when the terminal leaves the RRC connection state on the first access network device.

3. The method according to claim 2, characterized in that The capability recovery information includes or is used to indicate at least one of the following: Restore full capabilities; Recover some of your abilities; The ability is not restored; Leaving the RRC connection state is used to indicate to the second access network device that the terminal has left the RRC connection state.

4. The method according to claim 2, characterized in that: The capability change requirement information includes or is used to indicate at least one of the following: Multiple-input multiple-output MIMO capability; Frequency band capability or frequency band combination capability; Measurement capabilities; Sounding reference signal SRS switching capability; Dual connectivity DC or carrier aggregation CA capability; Bandwidth capabilities; Power capability; The set of supported features; Supported feature set combinations; Supported sending and receiving capabilities; The maximum rate supported.

5. The method according to any one of claims 1 to 4, characterized in that: After the terminal sends the first message, the method further includes: the terminal starting a first timer; Wherein, while the first timer is running, the terminal is not allowed to send the first message again; or when the first timer is not running, the terminal is allowed to send the first message again.

6. The method according to any one of claims 1 to 5, characterized in that: The first message is carried by one of the following messages: Terminal auxiliary information message; Terminal capability information message; RRC dedicated signaling message; Non-access stratum NAS message.

7. The method according to any one of claims 1 to 6, characterized in that: After the terminal sends the first message, the method further includes: the terminal receiving a second message, where the second message includes at least one of the following: Dual access or multi-access capability split ratio, used to indicate the proportion of the capability allocated to the access network device accessed by the terminal; Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal; Capability ID, used to indicate the capability ID assigned to the access network device to which the terminal is connected, and different capability IDs correspond to different capability subsets; Capability change indication information, used to indicate the capabilities allocated by the terminal to the access network device to be accessed; First configuration information, where the first configuration information is used to reconfigure the terminal.

8. The method according to claim 1 or 2, characterized in that: The first message includes an indication that the terminal needs to leave the RRC connected state. After the terminal sends the first message, the method further includes: The terminal receives first configuration information, where the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

9. The method according to claim 8, characterized in that After the terminal sends the first message, the method further includes: The terminal starts a second timer; When the second timer times out, the terminal enters the RRC idle state.

10. The method according to any one of claims 1 to 9, characterized in that: After the terminal sends the first message, the method further includes: the terminal receiving a first response message, where the first response message includes at least one of the following: information indicating acceptance or rejection of the first message; Information used to reconfigure the terminal.

11. The method according to any one of claims 1 to 10, characterized in that: Before the terminal sends the first message, the method further includes: the terminal receiving second configuration information, where the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following: The first indication information is used to indicate a change in the capability of supporting the terminal or to send a capability division request; a duration of a first timer, where the first timer is used to limit the terminal from sending a first message; a duration of a second timer, the second timer being used for the terminal to enter an RRC idle state; For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

12. The method according to claim 11, characterized in that The second configuration information is carried by one of the following: System information SI message; RRC reconfiguration message.

13. A method for changing terminal capabilities, characterized in that: include: The network side device receives a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: Terminal capability change indication, terminal capability division indication, indication that the terminal needs to leave the RRC connected state, terminal support information indication, terminal preference indication before leaving the RRC connected state, network information indication about dual access or multiple access.

14. The method according to claim 13, characterized in that In the case where the first message includes a terminal capability change indication, the first message includes at least one of the following: capability change requirement information; capability identification ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported, reduced or restricted by the terminal; or, In the case where the first message includes a terminal capability division indication, the first message includes at least one of the following: request division capability information, used to request the network to perform capability division for the terminal; capability information of expected network division, including at least one of the following: capability ID that the terminal expects the access network device to allocate; dual access or multi-access capability division ratio that the terminal expects the access network device to allocate; traffic division ratio that the terminal expects the core network device to allocate; capability change requirement information; configuration upper limit of the terminal; or, In the case where the first message includes an indication that the terminal needs to leave the RRC connected state, the first message includes at least one of the following: information requesting to leave the RRC connected state; preference information for leaving the RRC connected state; the reason for leaving the RRC connected state is dual access or multiple access; or, In the case where the first message includes a terminal support information indication, the first message includes at least one of the following: the terminal supports dual access or multiple access; a PLMN supporting dual access or multiple access; at least one capability supported by the terminal; a capability ID, wherein different capability IDs correspond to different capability subsets, and the capability subset includes at least one capability supported by the terminal; or, In the case where the first message includes a preference indication before the terminal leaves the RRC connection state, the first message includes: capability recovery information, used to indicate the network's expectation that the second access network device will recover capabilities when the terminal leaves the RRC connection state on the first access network device.

15. The method according to claim 14, characterized in that The capability recovery information includes or is used to indicate at least one of the following: Restore full capabilities; Recover some of your abilities; The ability is not restored; Leaving the RRC connection state is used to indicate to the second access network device that the terminal has left the RRC connection state.

16. The method according to claim 14, characterized in that The capability change requirement information includes or is used to indicate at least one of the following: Multiple-input multiple-output MIMO capability; Frequency band capability or frequency band combination capability; Measurement capabilities; Sounding reference signal SRS switching capability; Dual connectivity DC or carrier aggregation CA capability; Bandwidth capabilities; Power capability; The set of supported features; Supported feature set combinations; Supported sending and receiving capabilities; The maximum rate supported.

17. The method according to any one of claims 13 to 16, characterized in that The first message is carried by one of the following messages: Terminal auxiliary information message; Terminal capability information message; RRC dedicated signaling message; Non-access stratum NAS message.

18. The method according to any one of claims 13 to 17, characterized in that After the network side device receives the first message, the method further includes: the network side device sends a second message to the terminal, and the second message includes at least one of the following: Dual access or multi-access capability split ratio, used to indicate the proportion of the capability allocated to the access network device accessed by the terminal; Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal; Capability ID, used to indicate the capability ID assigned to the access network device to which the terminal is connected, and different capability IDs correspond to different capability subsets; Capability change indication information, used to indicate the capabilities allocated by the terminal to the access network device to be accessed; First configuration information, where the first configuration information is used to reconfigure the terminal.

19. The method according to any one of claims 13 to 17, characterized in that The network side device is a first access network device, and the method further includes: the first access network device sends a third message to the second access network device, and the third message includes at least one of the following: Dual access or multi-access capability split ratio, used to indicate the proportion of the capabilities allocated to the access network device accessed by the terminal; Dual-access or multi-access traffic split ratio, used to indicate the traffic ratio allocated to the access network device accessed by the terminal; Capability ID, used to indicate the capability ID assigned to the access network device accessed by the terminal, and different capability IDs correspond to different capability subsets; Capability change indication information, used to indicate the capability allocated to the access network device accessed by the terminal; first configuration information, where the first configuration information is used to reconfigure the terminal; The first access network device and the second access network device are access network devices accessed by the terminal.

20. The method according to claim 13 or 14, characterized in that The first message includes an indication that the terminal needs to leave the RRC connected state. After the network side device receives the first message, the method further includes: The network side device sends first configuration information to the terminal, where the first configuration information is used to reconfigure the terminal, and the capability reconfigured for the terminal is the total capability of the terminal.

21. The method according to claim 20, characterized in that The network side device is a first access network device, and the method further includes: The first access network device sends the first configuration information through the second access network device.

22. The method according to any one of claims 13 to 21, characterized in that The first message comes from the terminal. After the network side device receives the first message, the method further includes: The network side device sends a first response message to the terminal, where the first response message includes at least one of the following: information indicating acceptance or rejection of the first message; Information used to reconfigure the terminal.

23. The method according to any one of claims 13 to 22, characterized in that After the network side device receives the first message, the method further includes: The network side device sends second configuration information to the terminal, where the second configuration information is used to indicate that the terminal is allowed to send the first message, and the second configuration information includes or is used to indicate at least one of the following: The first indication information is used to indicate a change in the capability of supporting the terminal or to send a capability division request; a duration of a first timer, where the first timer is used to limit the terminal from sending a first message; a duration of a second timer, the second timer being used for the terminal to enter an RRC idle state; For the purpose of dual access or multiple access, the terminal is supported to request to leave the RRC connected state.

24. The method according to claim 23, characterized in that The second configuration information is carried by one of the following: System information SI message; RRC reconfiguration message.

25. The method according to claim 13, characterized in that The network indication of dual access or multi-access related information includes at least one of the following: The terminal establishes a connection with the first access network device; The terminal establishes a connection with the second access network device; Dual access or multi-access enabled; Auxiliary information related to dual access or multi-access; Resource negotiation information between the first access network device and the second access network device; The first access network device and the second access network device are access network devices accessed by the terminal.

26. The method according to claim 25, characterized in that The network indication of the dual access or multi-access related information comes from a core network device, and after the network side device receives the first message, the method further includes: The network side device sends first configuration information to the terminal, where the first configuration information is used to reconfigure the capability of the terminal.

27. The method according to claim 26, characterized in that The method further comprises: The network side device sends the first configuration information to the second access network device, and the first configuration information is also used by the second access network device to reconfigure the capability of the terminal.

28. The method according to any one of claims 13 to 27, characterized in that The network side device is a first access network device, and the method further includes: When releasing the terminal to the RRC idle state or the RRC inactive state, the network side device sends second indication information to the second access network device, where the second indication information is used to instruct the second access network device to use the terminal capability, or to indicate that the terminal in the second access network is currently in a single radio access technology RAT scenario, or to indicate that the terminal is in the RRC inactive state; The first access network device and the second access network device are access network devices accessed by the terminal.

29. A terminal capability changing device, applied to a terminal, characterized in that: include: A sending module, configured to send a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: Terminal capability change indication, terminal capability division indication, indication that the terminal needs to leave the RRC connected state, terminal support information indication, and preference indication before the terminal leaves the RRC connected state.

30. A terminal capability changing device, applied to a network side device, characterized in that: include: A receiving module, configured to receive a first message; wherein the terminal supports dual access or multiple access, and the first message includes at least one of the following: Terminal capability change indication, terminal capability division indication, indication that the terminal needs to leave the RRC connected state, terminal support information indication, terminal preference indication before leaving the RRC connected state, network information indication about dual access or multiple access.

31. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 12 are implemented.

32. A network side device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 13 to 28 are implemented.

33. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 28 are implemented.

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