CN112153633A

CN112153633A - Method and equipment for sending and receiving capability information

Info

Publication number: CN112153633A
Application number: CN201910581396.6A
Authority: CN
Inventors: 邝奕如; 王键; 李秉肇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-12-29
Anticipated expiration: 2039-06-29
Also published as: WO2021000688A1; CN112153633B

Abstract

The application relates to a method and equipment for sending and receiving capability information, wherein the method for sending the capability information comprises the following steps: the method comprises the steps that terminal equipment receives a first message from first network equipment, wherein the first message carries first filtering information, and the first filtering information indicates the terminal equipment to filter capacity information of the terminal equipment; the terminal device sends a second message to the first network device, the second message carries and/or indicates first capability information and second filtering information, the first capability information comprises capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information comprises the first filtering information and the third filtering information. The second network device to which the terminal device is switched can obtain more capability information from the first network device without requesting the terminal device for obtaining the capability information, so that signaling overhead is saved, and time delay of the second network device for configuring the terminal device is reduced.

Description

Method and equipment for sending and receiving capability information

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for sending and receiving capability information.

Background

After accessing a certain network, the terminal device needs to report capability information of the terminal device to the base station and the core network device. The capability information reported by the terminal device may include capability information of multiple Radio Access Technologies (RATs) of the terminal device, for example, the capability information of the RATs including a new radio technology (NR) and an evolved-UMTS terrestrial radio access technology (E-UTRA) of the terminal device.

For example, the base station may request the terminal device to report the capability information, and when the base station requests, the base station may send filtering information to the terminal device, where the filtering information is used to indicate the terminal device to filter the capability information of the terminal device, or the filtering information is specific capability information that indicates the base station to request, and the terminal device only needs to report the capability information corresponding to the filtering information. The terminal device may be in a mobile state, that is, after reporting the capability information to one base station, the terminal device may be handed over to a new base station. Even if the new base station can obtain the context and other information of the terminal device from the original base station, because the capability information required by different base stations may be different, the terminal device reports the capability information to the original base station based on the filtering information sent by the original base station, and the capability information is not necessarily required by the new base station, the new base station needs to request the terminal device to obtain the capability information again, so that signaling overhead is increased, and time delay for the new base station to configure the terminal device is also increased.

Disclosure of Invention

The embodiment of the application provides a method and equipment for sending and receiving capability information, which are used for reducing system overhead.

In a first aspect, a method for transmitting capability information is provided, the method including: a terminal device receives a first message from a first network device, wherein the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter capability information of the terminal device; the terminal device sends a second message to the first network device, the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and third filtering information.

The method may be performed by a first communication device, which may be a communication apparatus or a communication device, such as a system-on-a-chip, capable of supporting the communication apparatus to implement the functionality required for the method. Illustratively, the communication device is a terminal device.

In the embodiment of the present application, the terminal device sends, to the first network device, the capability information obtained by filtering the capability information of the terminal device according to the first filtering information, and also sends, to the first network device, the capability information obtained by filtering the capability information of the terminal device according to the additional filtering information, so that the first network device can obtain relatively rich capability information. If the terminal device is switched to the second network device, the second network device can obtain more capability information from the first network device, and the capability information can possibly meet the requirement of the new second network device, so that the second network device does not need to request the terminal device to obtain the capability information, the signaling overhead is saved, and the time delay of the second network device for configuring the terminal device is reduced.

With reference to the first aspect, in a first possible implementation manner of the first aspect, a first information element of the second message carries the first filtering information, and a second information element of the second message carries the third filtering information, where the first information element is used to carry filtering information from the first network device, and the second information element is used to carry extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

In the second message, the first information element is, for example, an information element originally used to carry the filtering information from the first network device. Then a second cell may be added, the first filter information may be carried in the first cell, and the third filter information may be carried in the second cell, so that the network device may determine which filter information is extended filter information based on different cells. Or, the second filtering information can be carried in the first cell continuously without adding new cells, so that the structure of the second message is simplified.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the performing, by the second message, and/or the indicating the first capability information and the second filtering information includes:

the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

For example, the second message carries the first capability information and the second filtering information, or the second message indicates the first capability information and the second filtering information, or the second message carries the first capability information and indicates the second filtering information, or the second message indicates the first capability information and carries the second filtering information. The second message can indicate the first capability information or indicate the first capability information and the second filtering information through the capability identifier, so that the first capability information and the second filtering information do not need to be carried in the second message, and the capability identifier has a smaller information amount compared with the first capability information and the second filtering information, which is beneficial to saving signaling overhead.

With reference to the first aspect, the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first capability information includes one or any combination of the following items: the packet data convergence protocol parameter of the terminal device, the radio link layer control parameter of the terminal device, the medium access control parameter of the terminal device, the physical layer parameter of the terminal device, the radio frequency parameter of the terminal device, or the measurement parameter of the terminal device.

The first capability information may include at least one item as above, or may further include other parameters, or the first capability information may not include any item as above, but include other parameters.

With reference to the first aspect or any one of the first possible implementation manner of the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes: the terminal device receives configuration information from a first network device, wherein the configuration information is used for indicating that the terminal device can send capability information based on the extended filtering information.

In view of the requirements of the first network device, or in view of the capabilities of the first network device, it may be that the first network device does not support receiving the capability parameters corresponding to the extended filtering information from the terminal device at any time, for example, for some first network devices, or at some particular time, the first network device may only wish to receive the capability parameters corresponding to the first filtering information from the terminal device. Therefore, for more flexibility, in this embodiment of the application, if the first network device supports receiving the capability parameter corresponding to the extended filtering information from the terminal device, the first network device may send configuration information to the terminal device, where the configuration information may indicate that the terminal device is capable of sending the capability information based on the extended filtering information. After receiving the configuration information, the terminal device may send capability information to the network device based on the extended filtering information.

With reference to the first aspect or any possible implementation manner of the first aspect to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes one or any combination of multiple of the following:

the terminal equipment determines the third filtering information according to history information, wherein the history information comprises filtering information historically received by the terminal equipment;

the terminal device determines the third filtering information according to first verified information, wherein the first verified information comprises filtering information sent by the terminal device historically; or, the terminal device determines the third filtering information according to second experience information, where the second experience information includes filtering information used in network deployment.

The terminal device may determine the third filtering information according to one or more of the above items, or the terminal device may determine the third filtering information according to other manners.

In a second aspect, a method of receiving capability information is provided, the method comprising: a first network device sends a first message to a terminal device, wherein the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter the capability information of the terminal device; the first network device receives a second message from the terminal device, the second message carries and/or indicates first capability information and second filtering information, the first capability information comprises capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, and the second filtering information comprises the first filtering information and third filtering information; and the first network equipment configures the terminal equipment according to the first capability information.

The method may be performed by a second communication device, which may be a communication apparatus or a communication device capable of supporting a communication apparatus to implement the functions required by the method, such as a system-on-a-chip. Illustratively, the communication device is a first network device.

With reference to the second aspect, in a first possible implementation manner of the second aspect, a second information element of the second message carries the third filtering information, and a first information element of the second message carries the first filtering information, where the first information element is used for carrying filtering information from the first network device, and the second information element is used for carrying extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the second message carries and/or indicates the first capability information and the second filtering information, and includes:

With reference to the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the first capability information includes one or any combination of the following items:

the packet data convergence protocol parameter of the terminal device, the radio link layer control parameter of the terminal device, the medium access control parameter of the terminal device, the physical layer parameter of the terminal device, the radio frequency parameter of the terminal device, or the measurement parameter of the terminal device.

With reference to the second aspect or any one of the first possible implementation manner of the second aspect to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the method further includes:

and the first network equipment sends configuration information to the terminal equipment, wherein the configuration information is used for indicating that the terminal equipment can send capability information based on the expanded filtering information.

With reference to the second aspect or any one of the first possible implementation manner of the second aspect to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the method further includes: when the terminal device is switched from the first network device to a second network device, the first network device sends second capability information to the second network device, the second capability information is used for the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

When the terminal device is switched, the first network device may send the second capability information to the second network device, and the second capability information may meet the requirement of the new second network device, so that the second network device does not need to request the terminal device to obtain the capability information, signaling overhead is saved, and time delay for the second network device to configure the terminal device is also reduced. The terminal device may only send the second capability information to the second network device, or, in order to make the capability information obtained by the second network device richer and make the capability information obtained by the second network device meet the requirement of the second network device to a greater extent, the terminal device may also send the first capability information to the second network device, which is not limited specifically.

With regard to the technical effects brought by the second aspect or the various embodiments of the second aspect, reference may be made to the introduction of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In a third aspect, a first communication device is provided, for example, the first communication device as described above. The communication device is configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the communication device may comprise means, for example comprising a processing means and a transceiver means, for performing the method of the first aspect or any possible implementation manner of the first aspect. The transceiver module may be a functional module, and the functional module can complete both the function of receiving information and the function of sending information. Or, the transceiver module may be a generic term for a transmitting module and a receiving module, where the transmitting module is used to complete a function of transmitting information, and the receiving module is used to complete a function of receiving information. Illustratively, the communication device is a terminal equipment. The receiving and sending module is configured to receive a first message from a first network device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device to filter capability information of the terminal device;

the processing module is used for determining first capability information according to the first filtering information;

the transceiver module is further configured to send a second message to the first network device, where the second message carries and/or indicates the first capability information and the second filtering information, the first capability information includes capability information obtained after filtering the capability information of the terminal device according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and the third filtering information.

With reference to the third aspect, in a first possible implementation manner of the third aspect, a first information element of the second message carries the first filtering information, and a second information element of the second message carries the third filtering information, where the first information element is used to carry filtering information from the first network device, and the second information element is used to carry extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the performing, by the second message, the first capability information and the second filtering information by using a second message includes: the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

With reference to the third aspect or the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the first capability information includes one or any combination of the following items: the packet data convergence protocol parameter of the terminal device, the radio link layer control parameter of the terminal device, the medium access control parameter of the terminal device, the physical layer parameter of the terminal device, the radio frequency parameter of the terminal device, or the measurement parameter of the terminal device.

With reference to the third aspect or any possible implementation manner of the first possible implementation manner of the third aspect to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the transceiver module is further configured to receive configuration information from the first network device, where the configuration information is used to indicate that the terminal device is capable of sending capability information based on the extended filtering information.

With reference to the third aspect or any possible implementation manner of the first possible implementation manner of the third aspect to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the processing module is further configured to perform one or any combination of the following:

determining the third filtering information according to historical information, wherein the historical information comprises filtering information historically received by the terminal equipment;

determining the third filtering information according to first verified information, wherein the first verified information comprises filtering information sent by the terminal device historically; or, determining the third filtering information according to second experience information, where the second experience information includes filtering information used in network deployment.

With regard to the technical effects brought by the third aspect or the various embodiments of the third aspect, reference may be made to the description of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In a fourth aspect, a second communication device is provided, for example a second communication device as described above. The communication device is configured to perform the method of the second aspect or any possible implementation manner of the second aspect. In particular, the communication device may comprise means for performing the method of the second aspect or any possible implementation manner of the second aspect, for example comprising a processing means and a transceiver means. The transceiver module may be a functional module, and the functional module can complete both the function of receiving information and the function of sending information. Or, the transceiver module may be a generic term for a transmitting module and a receiving module, where the transmitting module is used to complete a function of transmitting information, and the receiving module is used to complete a function of receiving information. Illustratively, the communication device is a first network device. The receiving and sending module is configured to send a first message to a terminal device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device to filter capability information of the terminal device;

the transceiver module is further configured to receive a second message from the terminal device, where the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, and the second filtering information includes the first filtering information and third filtering information;

and the processing module is used for configuring the terminal equipment according to the first capability information.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the second message carries and/or indicates the first capability information and the second filtering information, and includes: the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, a second information element of the second message carries the third filtering information, and a first information element of the second message carries the first filtering information, where the first information element is used to carry filtering information from the first network device, and the second information element is used to carry extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect or the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first capability information includes one or any combination of the following items:

With reference to the fourth aspect or any possible implementation manner of the first possible implementation manner of the fourth aspect to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the transceiver module is further configured to send configuration information to the terminal device, where the configuration information is used to indicate that the terminal device is capable of sending capability information based on extended filtering information.

With reference to the fourth aspect or any possible implementation manner of the first possible implementation manner of the fourth aspect to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the transceiver module is further configured to send, when the terminal device is handed over from the first network device to a second network device, second capability information to the second network device, where the second capability information is used by the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

With regard to the technical effects brought by the fourth aspect or the various embodiments of the fourth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various embodiments of the second aspect, and details are not repeated.

In a fifth aspect, a third communication device is provided, for example a first communication device as described above. The communication device comprises a processor and a memory and, optionally, a transceiver for implementing the method as described in the first aspect or in various possible designs of the first aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a terminal device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. The transceiver is configured to receive a first message from a first network device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device to filter capability information of the terminal device;

the processor is used for determining first capability information according to the first filtering information;

the transceiver is further configured to send a second message to the first network device, where the second message carries and/or indicates the first capability information and second filtering information, the first capability information includes capability information obtained after filtering the capability information of the terminal device according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and third filtering information.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, a first information element of the second message carries the first filtering information, and a second information element of the second message carries the third filtering information, where the first information element is used for carrying filtering information from the first network device, and the second information element is used for carrying extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the second message carries and/or indicates the first capability information and the second filtering information, and includes: the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect or the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the first capability information includes one or any combination of the following items: the packet data convergence protocol parameter of the terminal device, the radio link layer control parameter of the terminal device, the medium access control parameter of the terminal device, the physical layer parameter of the terminal device, the radio frequency parameter of the terminal device, or the measurement parameter of the terminal device.

With reference to the fifth aspect or any possible implementation manner of the first possible implementation manner of the fifth aspect to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the transceiver is further configured to receive configuration information from the first network device, where the configuration information is used to indicate that the terminal device is capable of sending capability information based on the extended filtering information.

With reference to the fifth aspect or any possible implementation manner of the first possible implementation manner of the fifth aspect to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the processor is further configured to perform one or any combination of the following:

With regard to the technical effects brought by the fifth aspect or the various embodiments of the fifth aspect, reference may be made to the introduction of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In a sixth aspect, a fourth communication device is provided, for example the second communication device as described above. The communication device comprises a processor and a memory and, optionally, a transceiver for implementing the method as described in the second aspect or in various possible designs of the second aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a first network device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. The transceiver is configured to send a first message to a terminal device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device to filter capability information of the terminal device;

the transceiver is further configured to receive a second message from the terminal device, where the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, and the second filtering information includes the first filtering information and third filtering information;

and the processor is used for configuring the terminal equipment according to the first capability information.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, a second information element of the second message carries the third filtering information, and a first information element of the second message carries the first filtering information, where the first information element is used to carry the filtering information from the first network device, and the second information element is used to carry extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

With reference to the sixth aspect, in a second possible implementation manner of the sixth aspect, the second message carries and/or indicates the first capability information and the second filtering information, and includes: the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect or the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the first capability information includes one or any combination of the following items:

With reference to the sixth aspect or any possible implementation manner of the first possible implementation manner of the sixth aspect to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the transceiver is further configured to send configuration information to the terminal device, where the configuration information is used to indicate that the terminal device is capable of sending capability information based on the extended filtering information.

With reference to the sixth aspect or any possible implementation manner of the first possible implementation manner of the sixth aspect to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the transceiver is further configured to send, to a second network device, second capability information when the terminal device is handed over from the first network device to the second network device, where the second capability information is used by the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

With regard to the technical effects brought by the sixth aspect or the various embodiments of the sixth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various embodiments of the second aspect, and details are not repeated.

In a seventh aspect, a fifth communication device is provided. The communication device may be the first communication device in the above method design. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions that, when executed by the processor, cause the fifth communication device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

Wherein, the fifth communication device may further include a communication interface, which may be a transceiver in the terminal equipment, for example, implemented by an antenna, a feeder, a codec, etc. in the communication device, or, if the fifth communication device is a chip disposed in the terminal equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

In an eighth aspect, a sixth communications apparatus is provided. The communication device may be the second communication device in the above method design. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a first network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the sixth communication device to perform the method of the second aspect or any one of the possible embodiments of the second aspect.

Wherein, the sixth communication device may further include a communication interface, and the communication interface may be a transceiver in the first network device, for example, implemented by an antenna, a feeder, a codec, and the like in the communication device, or, if the sixth communication device is a chip disposed in the first network device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

A ninth aspect provides a communication system, which may include the first communication apparatus of the third aspect, the third communication apparatus of the fifth aspect, or the fifth communication apparatus of the seventh aspect, and include the second communication apparatus of the fourth aspect, the fourth communication apparatus of the sixth aspect, or the sixth communication apparatus of the eighth aspect.

A tenth aspect provides a computer storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In an eleventh aspect, there is provided a computer storage medium having instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

In a twelfth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a thirteenth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the second aspect described above or any one of the possible designs of the second aspect.

In the embodiment of the application, if the terminal device is switched to the second network device, the second network device may obtain more capability information from the first network device, and the capability information may meet the requirement of the new second network device, so that the second network device does not need to request the terminal device to obtain the capability information, signaling overhead is saved, and time delay of the second network device for configuring the terminal device is also reduced.

Drawings

FIG. 1A is a schematic diagram of a scenario in which a network requests capability information from a terminal device;

fig. 1B is a flowchart of reporting capability information from a terminal device to a network device;

fig. 2 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 3 is a flowchart of a method for sending and receiving capability information according to an embodiment of the present disclosure;

fig. 4 is a schematic block diagram of a terminal device provided in an embodiment of the present application;

fig. 5 is another schematic block diagram of a terminal device provided in an embodiment of the present application;

fig. 6 is a schematic block diagram of a first network device provided in an embodiment of the present application;

fig. 7 is another schematic block diagram of a first network device provided in an embodiment of the present application;

fig. 8 is a schematic block diagram of a communication device provided in an embodiment of the present application;

fig. 9 is another schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 10 is a further schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal equipment, including equipment providing voice and/or data connectivity to a user, in particular, including equipment providing voice to a user, or including equipment providing data connectivity to a user, or including equipment providing voice and data connectivity to a user. For example, may include a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchange voice or data with the RAN, or interact with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-all (V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (internet of things) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point, AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user), or a user equipment (user), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as:

smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

In this embodiment, the terminal device may further include a relay (relay). Or, it is understood that any device capable of data communication with a base station may be considered a terminal device.

2) Network devices, including, for example, Access Network (AN) devices, such as base stations (e.g., access points), may refer to devices in AN access network that communicate with wireless terminal devices over one or more cells over the air, or, for example, a network device in vehicle-to-all (V2X) technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and IP packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or a long term evolution-advanced (LTE-a) system, or may also include a fifth generation mobile communication technology (the 5 th generation mobile communication technology)^thgeneration, 5G) new radio interface (NR) system (also referred to as NR system for short), or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud RAN (Cloud RAN) system.

Of course, the network device may further include a core network device, but since the technical solution provided in the embodiment of the present application mainly relates to an access network device, hereinafter, if no special description is provided, the described "core network device" refers to the core network device, and the described "network device" or "access network device" refers to the access network device.

3) The capability of the terminal device can be indicated by the capability information of the terminal device. The capability information of the terminal device may include, for example, one or any combination of the following: a Packet Data Convergence Protocol (PDCP) parameter of the terminal device, a radio link layer control (RLC) parameter of the terminal device, a Media Access Control (MAC) parameter of the terminal device, a physical layer parameter of the terminal device, a radio frequency parameter of the terminal device, or a measurement parameter of the terminal device. Of course, the capability information of the terminal device may also include other parameters of the terminal device, and the detailed and complete capability information of the terminal device is not described herein again. The specific capabilities of these parameters include capability information such as band combination (band combination), baseband processing capability (baseband processing capability), supported carrier aggregation band class (ca-bandwidth class), modulation and coding scheme (modulation and coding scheme), and the like.

In addition, the capability information reported to the network device by the terminal device may include capability information of multiple radio access technologies of the terminal device. If the terminal device supports one radio access technology, the terminal device will have capability information corresponding to the radio access technology, and the capability information is the capability information of the radio access technology of the terminal device, or it is understood that the capability information of one radio access technology of the terminal device is the capability information of the terminal device when the terminal device works under one radio access technology. Alternatively, the capability information of one radio access technology of the terminal device may be described as the capability information of the terminal device under one radio access technology. The radio access technologies include, for example: NR, evolved universal mobile telecommunications system terrestrial radio access (E-UTRA), E-UTRA-NR, universal mobile telecommunications system terrestrial radio access (UMTS terrestrial radio access, UTRA), enhanced data rates for GSM evolution radio access (GSM EDGE radio access network, GERAN), and Code Division Multiple Access (CDMA) 2000-1XRTT, and possibly other radio access technologies.

For example, if the terminal device supports E-UTRA, the capability information of the terminal device includes the capability information of the terminal device under E-UTRA; if the terminal equipment supports NR, the capability information of the terminal equipment comprises the capability information of the terminal equipment under NR; and if the terminal equipment supports E-UTRA and NR, the capability information of the terminal equipment comprises the capability information of the terminal equipment under the E-UTRA and the capability information under the NR.

3) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first filtering information and the second filtering information are only for distinguishing different filtering information, and do not necessarily indicate the difference in the content, priority, transmission order, importance, or the like of the two filtering information.

Having described some concepts related to embodiments of the present application, the following description will be made of the technical features of embodiments of the present application, and the following description will be made in detail with reference to fig. 1A and 1B.

For example, referring to fig. 1A, when a user holds a terminal device and needs to make a call or perform data networking (e.g., browsing a web page, watching a video or playing a game) and the like, the user needs to access a network, and a connection needs to be established between the terminal device and the network. When an initial connection is established, a network (for example, a core network device or a network device, where the network device refers to an access network device) needs to acquire capability information of a terminal device, so as to correctly configure the terminal device according to the capability information of the terminal device. Fig. 1A illustrates an example in which a network device needs to acquire capability information of a terminal device. Of course, in some other scenarios, the network also needs to acquire the capability information of the terminal device, which is not illustrated here.

Fig. 1B is a schematic flow chart of the present terminal device transmitting capability information, which may be radio access capability information of the terminal device, to the network device, and the steps of fig. 1B include S11 and S12, which are described in detail below. It should be noted that, the steps described in fig. 1B mainly refer to a signaling flow between the terminal device and the network device, and omit a signaling flow between the network device and the core network.

S11: when the network device sends a UE capability request message to the terminal device, the terminal device receives the UE capability request message from the network device, where the UE capability request message is used to request the terminal device to send radio access capability information of the terminal device in a certain Radio Access Technology (RAT).

For example, the UE capability request message is a UE capability query (UE capability inquiry) message.

For a terminal device in a connected state, when the core network device needs the capability information of the terminal device and the core network device does not store the capability information of the terminal device, the core network device may trigger the network device to initiate a UE capability request process, that is, initiate the flow shown in fig. 1B to request the capability information of the terminal device. After the network device initiates a request, the terminal device sends the capability information of the terminal device to the network device, and the network device further sends the capability information of the terminal device to the core network device, so that the network device or the core network device configures or schedules the terminal device according to the capability of the terminal device. In different communication systems, the core network device referred to herein may correspond to different devices, for example, in a 4G system, the core network device referred to herein may be a Mobility Management Entity (MME), and in a 5G NR system, the core network device referred to herein may be an access and mobility management function (AMF).

The UE capability request message may carry filtering information, which is used to filter the UE capability. The filtering information may indicate capability parameters under one or more RATs (e.g., one or more of E-UTRA technology, NR technology, E-UTRA-NR), indicating that the capability parameters are requested. For example, the filtering information may include one or more of the following capability parameters: band (band) information of EUTRA, band information of NR, downlink carrier aggregation bandwidth classification (ca-bandwidth hclassdl) of EUTRA, uplink carrier aggregation bandwidth classification (ca-bandwidth hclassul) of EUTRA, downlink maximum aggregation bandwidth of NR, uplink maximum aggregation bandwidth of NR, downlink maximum carrier number or serving cell number of NR, and uplink maximum carrier number or serving cell number of NR. The terminal device may support multiple RATs, and therefore the filtering information may also indicate capability parameters under multiple RATs, for example, the filtering information may indicate capability parameters under EUTRA and/or capability parameters under NR. The downlink carrier aggregation bandwidth class of EUTRA is the maximum number of downlink carriers or the number of serving cells for requesting EUTRA. It should be noted that the terminal device needs to be in a Radio Resource Control (RRC) connected state, and in release15, the network device needs to carry the filtering information in the UE capability request message.

Generally, the filtering information specifically indicates which capability parameters are considered for deployment of the network device, for example, frequency band information supported by the network device may be considered, and the network device may request, from the terminal device, capability parameters actually required by the network device, and filter out some capability parameters that are not required under the network device. By means of sending the filtering information, the capability information which is not needed by some network equipment can be filtered, and the size of the UE capability information is reduced, so that the signaling overhead is reduced.

S12: and the terminal equipment sends the UE capability message to the network equipment, and the network equipment receives the UE capability message from the terminal equipment.

Specifically, the terminal device filters the capability information of the terminal device according to the filtering information in the UE capability request message sent by the network device, removes the capability parameter that is not requested by the filtering information, and sends the filtered capability information to the network device through the UE capability message. In addition, the terminal device may also copy filtering information sent by the network device, and carry the copied filtering information in the UE capability message and bring the copied filtering information back to the network device, that is, the capability information in the UE capability message is represented as the capability information filtered according to the filtering information.

The UE capability message is implemented by, for example, a UE capability information (UE capability information) message, and may be a message specifically used for reporting capability information of the terminal device. The wireless access capability information of the terminal device may include, for example: one or more of PDCP parameters, RLC parameters, MAC parameters, physical layer parameters, radio frequency parameters, or measurement parameters, and the like, where the capability parameters specifically correspond to capability information such as a band combination (band combination), a supported carrier aggregation bandwidth class (ca-bandwidth class), a modulation and coding scheme (modulation and coding scheme), and the like. The capability parameters or the capability information are exemplary capability parameters or capability information, and specific and complete capability information is not described herein again in this embodiment of the present application.

After receiving the UE capability message, the network device may configure one or more of parameters of the terminal device, such as PDCP configuration, RLC configuration, MAC configuration, physical layer configuration, radio frequency configuration, or measurement configuration, according to the capability of the terminal device, so as to ensure that the configuration of the terminal device can meet the capability of the terminal device itself, that is, the terminal device can normally operate under the configuration of the network device.

Currently, in a Public Land Mobile Network (PLMN) network, base stations in different regions may have different filtering information. For example, an operator in europe may have one type of filtering information for local deployment in base stations in the uk and another type of filtering information for local deployment in base stations in france. If the two types of filtering information are different, the capability information determined by the terminal device according to the filtering information may be different, and then the capability information determined by the terminal device according to the filtering information of a certain base station is not necessarily the capability information required by another base station.

The terminal device may be in a moving state, for example, the terminal device may move after sending the capability information to one base station, so as to perform cell switching, and may be handed over to another base station. Even if the new base station can obtain the context of the terminal device from the source base station, the filtering information of the new base station and the filtering information of the source base station may be different, and the capability information sent by the terminal device to the source base station is not necessarily the capability information required by the new base station. Therefore, the new base station also needs to request the terminal device for obtaining the capability information again. In release15, the null can only transmit 9000 bytes of messages, and the signaling overhead of the UE capability message may be 9000 bytes. In release16, a UE capability segmentation scheme is introduced, and the capability information of the terminal device can be sent by dividing it into multiple messages, so that n UE capability messages can be transmitted over the air interface, and the signaling overhead of the UE capability message may be n × 9000 bytes (e.g., n — 12). Therefore, since the new base station needs to request the capability information from the terminal device again, a large signaling overhead is brought, and a large time delay is also caused.

In view of this, the technical solutions of the embodiments of the present application are provided. In this embodiment of the application, although the first network device only sends the first filtering information to the terminal device, the terminal device sends the capability parameter corresponding to the additional filtering information to the first network device in addition to the capability parameter requested by sending the first filtering information to the first network device, so that the first network device can obtain more capability parameters. If the terminal device is switched to the second network device, the second network device can obtain more capability parameters from the first network device, and the capability parameters can possibly meet the requirements of the second network device, so that the second network device does not need to request the terminal device to obtain capability information, signaling overhead is saved, and time delay of the second network device for configuring the terminal device is reduced.

The technical solution provided in the embodiment of the present application may be applied to an LTE system, for example, may be applied to a general LTE system or a vehicle networking system, for example, a vehicle to all (V2X), LTE-V, etc., or may be applied to an NR system, for example, may be applied to a general NR system or a vehicle networking system, for example, V2X, NR-V, etc., or may also be applied to other similar communication systems or a next-generation communication system.

Please refer to fig. 2, which is an application scenario of the embodiment of the present application. Fig. 2 includes a network device and a terminal device. Wherein the network device operates, for example, in an E-UTRA system or in an NR system. Of course, in the embodiment of the present application, one network device may serve multiple terminal devices, and fig. 2 only takes one terminal device as an example.

The network device in fig. 2 is, for example, an access network device, such as a base station. The network device corresponds to different devices in different systems, for example, the network device may correspond to an eNB in a 4G system, and the network device corresponds to a network device in a 5G system, for example, a gNB in a 5G system. Of course, the technical solution provided in the embodiment of the present application may also be applied to a future mobile communication system, and therefore the network device in fig. 2 may also correspond to a network device in the future mobile communication system. In fig. 2, the network device is taken as a base station, and actually, with reference to the foregoing description, the network device may also be an RSU or the like.

In addition, what is shown in fig. 1A may also be an application scenario of the embodiment of the present application.

In addition, the embodiment of the present application is not limited to the communication between the network device and the terminal device, and may also be the communication between the terminal device and the terminal device, for example. In the following description, communication between a network device and a terminal device is mainly taken as an example.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

An embodiment of the present application provides a method for sending and receiving capability information, please refer to fig. 3, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 1A or fig. 2 as an example. In addition, the method may be performed by two communication apparatuses, for example, a first communication apparatus and a second communication apparatus, where the first communication apparatus may be a first network device or a communication apparatus capable of supporting the first network device to implement the functions required by the method, or the first communication apparatus may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and may also be other communication apparatuses such as a chip system. The same applies to the second communication apparatus, the second communication apparatus may be the first network device or a communication apparatus capable of supporting the first network device to implement the functions required by the method, or the second communication apparatus may be the terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and may of course be other communication apparatuses such as a chip system. For example, the first communication apparatus may be a first network device, the second communication apparatus may be a terminal device, or both the first communication apparatus and the second communication apparatus may be a first network device, or both the first communication apparatus and the second communication apparatus may be a terminal device, or the first communication apparatus may be a first network device, and the second communication apparatus may be a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and so on. The first network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by a network device and a terminal device as an example, that is, the first communication apparatus is a network device and the second communication apparatus is a terminal device as an example. Since two or more network devices may be referred to in the following, one of the network devices is referred to as a first network device in the following. Since the present embodiment is applied to the network architecture shown in fig. 1A or fig. 2 as an example, the first network device described below may be the first network device in the network architecture shown in fig. 1A or fig. 2, and the terminal device described below may be the terminal device in the network architecture shown in fig. 1A or fig. 2.

S31, the first network device sends a first message to the terminal device, the terminal device receives the first message from the first network device, the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter the capability information of the terminal device.

For example, the first filter information may indicate (or, include) one or any combination of the following: band information of EUTRA, band information of NR, downlink carrier aggregation bandwidth classification of EUTRA, uplink carrier aggregation bandwidth classification of EUTRA, downlink maximum aggregation bandwidth of NR, uplink maximum aggregation bandwidth of NR, downlink maximum carrier number or serving cell number of NR, or uplink maximum carrier number or serving cell number of NR. For example, the first filtering information indicates band information of EUTRA, or the first filtering information indicates band information of EUTRA and band information of NR, or the first filtering information indicates a downlink carrier aggregation bandwidth classification of EUTRA, an uplink carrier aggregation bandwidth classification of EUTRA, and a downlink maximum aggregation bandwidth of NR, or the first filtering information indicates band information of EUTRA, band information of NR, a downlink carrier aggregation bandwidth classification of EUTRA, an uplink carrier aggregation bandwidth classification of EUTRA, a downlink maximum aggregation bandwidth of NR, an uplink maximum aggregation bandwidth of NR, a downlink maximum carrier number or serving cell number of NR, and an uplink maximum carrier number or serving cell number of NR, and so on. Of course, the first filtering information may indicate (or include) other capability parameters in addition to or instead of the above one or more items, or the first filtering information may indicate (or include) other capability parameters instead of or instead of the above capability parameters.

The first filtering information is used for instructing the terminal device to filter the capability information of the terminal device, and it can be understood that the terminal device only needs to send the capability information indicated by the first filtering information to the first network device, and for the capability information that is not indicated by the first filtering information, the terminal device does not need to send the capability information to the first network device, that is, the terminal device needs to filter the capability information that is not indicated by the first filtering information. Thus, it can also be considered that the first filtering information is information indicating the capability requested by the first network device. For example, if the first filtering information indicates (or includes) the downlink carrier aggregation bandwidth classification of EUTRA and does not indicate (or does not include) the uplink carrier aggregation bandwidth classification of EUTRA, the terminal device may send the downlink carrier aggregation bandwidth classification information of EUTRA to the network device without sending the uplink carrier aggregation bandwidth classification of EUTRA to the network device, which is equivalent to a parameter that the uplink carrier aggregation bandwidth classification of EUTRA is filtered out according to the first filtering information.

Then, the content indicated (or included) by the first filtering information is the content that the terminal device needs to determine, or in other words, the content that the terminal device is to send to the first network device. For example, the first filtering information indicates band information of EUTRA, and the terminal device transmits information of a band supported by the terminal device under EUTRA to the first network device; or, the first filtering information indicates the maximum uplink carrier number of the NR, and the terminal device sends the maximum uplink carrier number supported by the terminal device under the NR to the first network device; or, the first filtering information indicates the downlink carrier aggregation bandwidth classification of EUTRA, and the terminal device sends the maximum number of downlink carriers supported by the terminal device under EUTRA to the first network device; or, the first filtering information indicates the maximum downlink aggregation bandwidth of the NR, and the terminal device sends the maximum downlink aggregation bandwidth supported by the terminal device under the NR to the first network device.

For example, the first message may be the UE capability request message of S11 in the flow shown in fig. 1B, or the first message may be another message.

S32, the terminal device determines first capability information according to the first filtering information, where the first capability information includes capability information obtained by filtering the capability information of the terminal device according to second filtering information, and the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and third filtering information. Wherein, the third filtering information is not the filtering information sent by the first network device to the terminal device.

After receiving the first filtering information, the terminal device may determine the capability information corresponding to the first filtering information, for example, the terminal device filters the capability information of the terminal device according to the first filtering information, and removes the capability information that is not indicated (or included) by the first filtering information, where the capability information indicated (or included) by the first filtering information is the capability information corresponding to the first filtering information. For example, the first filtering information indicates band information of EUTRA, and the capability information corresponding to the first filtering information includes information of a band supported by the terminal device under EUTRA.

In addition, the terminal device may determine additional capability information in addition to the capability information corresponding to the first filtering information, or the terminal device may determine extended filtering information in addition to the capability information corresponding to the first filtering information, and determine capability information corresponding to the extended filtering information. The extended filter information is other filter information than the first filter information from the first network device. For example, the terminal device filters the capability information of the terminal device according to the extended filtering information, and removes the capability information that is not indicated (or included) by the extended filtering information, where the capability information indicated (or included) by the extended filtering information is the capability information corresponding to the extended filtering information. For example, the terminal device finally determines that the capability information corresponding to the second filtering information is, for example, referred to as first capability information, the first capability information includes the capability information corresponding to the first filtering information and also includes the capability information corresponding to third filtering information, the third filtering information is not the filtering information sent by the first network device to the terminal device, and the third filtering information is the extended filtering information.

For example, the capability information corresponding to the third filtering information is the second capability information, that is, the second capability information is not the capability information indicated (or included) by the first filtering information. Equivalently, the first capability information determined by the terminal device includes, in addition to the capability information indicated (or included) by the first filtering information, the capability information indicated (or included) by the third filtering information. That is, the terminal device may transmit, to the first network device, capability information that is not indicated by the first network device, in addition to the capability information indicated by the first network device. The more the capability information sent to the first network device by the terminal device, the larger the usable range of the capability information is, that is, the situation of re-reporting the capability information caused by the change of the filtering information can be reduced, the signaling overhead can be saved, and the time delay can be reduced. For example, if the terminal device sends the capability information determined based on the filtering information 1 and the filtering information 2 to the first network device, the terminal device can use the capability information when moving under the first network device corresponding to the filtering information 1 and the second network device corresponding to the filtering information 2, without the terminal device sending the capability information to the second network device again.

The terminal device determines the second filtering information, which involves determining the third filtering information, or the terminal device needs to determine the second capability information. There may be different ways in which the third filtering information (or the second capability information) is determined with respect to the terminal device.

As a first way for the terminal device to determine the third filtering information, the terminal device may determine the third filtering information according to the history information. The history information may comprise filtering information historically received by the terminal device. For example, if the terminal device has received the filtering information from the network device 1 and also received the filtering information from the network device 2, the filtering information may be used as the history information. The terminal device may receive filtering information from multiple network devices, and which filtering information or filtering information is/are used as the third filtering information may be determined by the terminal device itself, for example, the terminal device may use the filtering information received last time as the third filtering information, or the terminal device may also arbitrarily select one or more filtering information as the third filtering information. Of course, because the storage space of the terminal device is limited, the terminal device may have deleted the filtered information if it was received by the terminal device a long time ago. Therefore, the history information may also refer to filtering information received by the terminal device within a first time period, an end time of the first time period is, for example, a current time (for example, a time at which the terminal device determines the third filtering information), and a length of the first time period is, for example, set by the first network device, or set by the terminal device itself, or specified by a protocol.

Alternatively, the terminal device may determine the second capability information from the history information if the description of the second capability information is determined from the terminal device. It can be understood that the terminal device determines the third filtering information according to the history information, and then filters the capability information of the terminal device according to the third filtering information to determine the second capability information.

As a second way for the terminal device to determine the third filtering information, the terminal device may determine the third filtering information according to the first verification information. The first experience information comprises, for example, filtering information sent historically by the terminal device. For example, the terminal device sends filtering information 1 to the network device 1 and sends filtering information 2 to the network device 2, and then both filtering information 1 and filtering information 2 may be the first experience information. The terminal device may send more filtering information to the plurality of network devices, where the filtering information may correspond to a plurality of parameters, and which parameter or parameters are used as the parameters included in the third filtering information may be determined by the terminal device itself, for example, the terminal device may use a parameter whose sending times are greater than the first threshold as the parameters included in the third filtering information, or the terminal device may arbitrarily select one or more parameters as the parameters included in the third filtering information. The first threshold is set by the first network device, or set by the terminal device itself, or specified by a protocol, for example. Of course, because the storage space of the terminal device is limited, the terminal device may have deleted the transmission record if it is filtering information that the terminal device transmitted long ago. Therefore, the first experience information may also refer to filtering information sent by the terminal device in a second time period, an ending time of the second time period is, for example, a current time (for example, a time at which the terminal device determines the third filtering information), and a length of the second time period is, for example, set by the first network device, or set by the terminal device itself, or specified by a protocol. The filtering information historically received by the terminal device and the filtering information historically sent by the terminal device can be the same; alternatively, because the terminal device may send extended filtering information to the network device, the filtering information historically received by the terminal device may be different from the filtering information historically sent by the terminal device.

Alternatively, the terminal device may determine the second capability information from the history information if the description of the second capability information is determined from the terminal device. For example, the terminal device may determine the second capability information from the capability information that has been transmitted historically. After the terminal device determines the second capability information, the corresponding third filtering information can be determined.

As a second way for the terminal device to determine the third filtering information, the terminal device may determine the third filtering information according to the second experience information. The second empirical information includes, for example, filtering information used in network deployment. For example, some situations of the operator, such as filtering information of china mobile, may be known to the manufacturer of the terminal device. Then, the manufacturer of the terminal device may pre-configure the filtering information used by the operators in the network deployment in the terminal device, so that the terminal device may acquire the filtering information used in the network deployment. Or the terminal device may also obtain the filtering information used in the network deployment in other manners, and the specific obtaining manner is not limited. When the filtering information used in the network deployment is configured in the terminal device in advance, all the filtering information used in the network deployment may be configured in the terminal device in advance, or only the filtering information that is more commonly used in the network deployment may be configured in the terminal device in advance. If all filtering information used in network deployment is pre-configured in the terminal device, the terminal device may determine all filtering information pre-configured in the terminal device as third filtering information, or the terminal device may only determine part or all of more commonly used filtering information pre-configured in the filtering information of the terminal device as third filtering information; or, if the filtering information that is more frequently used in network deployment is preconfigured in the terminal device, the terminal device may determine, as the third filtering information, part or all of the filtering information that is more frequently used and preconfigured in the filtering information of the terminal device. Determining the third filtering information according to the filtering information used in the network deployment may make it more likely that the determined third filtering information is the filtering information required by the network device.

There may be different ways of how to determine which filtering information is "more commonly used" filtering information. For example, in china, the filtering information used by network devices in most regions may be filtering information 1, and there are network devices in regions with poor coverage or more complex coverage, and the filtering information used may be filtering information 1 and filtering information 2, so that filtering information 1 may be considered as the more common filtering information. Or, the deployment is common, and the filtering information used in many areas can be regarded as the filtering information which is used more frequently. Or, some network devices use filtering information 1 and filtering information 2, and some network devices use filtering information 1 and filtering information 3, so that filtering information 1 may also be regarded as more common filtering information.

As described above, three ways of determining the third filtering information (or determining the second capability information) by the terminal device are introduced, and the terminal device may determine the third filtering information according to any one of the ways described above, or may determine the third filtering information according to any combination of the three ways described above, for example, the third filtering information may be determined according to the first way and the second way described above, or determined according to the first way and the third way described above, or determined according to the second way and the third way described above, or determined according to the first way, the second way, and the third way described above. The specific manner or manners to be selected in the specific implementation may be determined by the first network device, or determined by the terminal device, or specified by a protocol. In addition, the manner of determining the third filtering information (or determining the second capability information) by the terminal device is not limited to the above two manners, and if there are other manners for determining the third filtering information (or determining the second capability information) by the terminal device, it is also within the protection scope of the embodiment of the present application.

For example, the first capability information may include one or any combination of: the parameter of the terminal device is a packet data convergence protocol parameter of the terminal device, a radio link layer control parameter of the terminal device, a medium access control parameter of the terminal device, a physical layer parameter of the terminal device, a radio frequency parameter of the terminal device, or a measurement parameter of the terminal device. For example, the first capability information includes packet data convergence protocol parameters of the terminal device and radio link layer control parameters of the terminal device; or the first capability information comprises physical layer parameters of the terminal equipment, radio frequency parameters of the terminal equipment and measurement parameters of the terminal equipment; or, the first capability information includes a medium access control parameter of the terminal device, a physical layer parameter of the terminal device, a radio link layer control parameter of the terminal device, and a measurement parameter of the terminal device; alternatively, the first capability information includes a packet data convergence protocol parameter of the terminal device, a radio link layer control parameter of the terminal device, a medium access control parameter of the terminal device, a physical layer parameter of the terminal device, a radio frequency parameter of the terminal device, a measurement parameter of the terminal device, and the like. Of course, the first capability information may include other parameters besides one or more items as above, or the first capability information may not include any item as above, but include other parameters, and the specific is not limited.

As an optional manner, the terminal device may further determine capability identifiers corresponding to the first capability information and the second filtering information. At present, when a terminal device accesses a network and sends capability information of the terminal device to the network device, a UE capability information message for carrying the capability information is large, and transmission at an air interface will bring a large signaling overhead, and even transmission at the air interface cannot be performed. Capability identifiers, represented for example as capability identification numbers (IDs), are thus introduced in Release16, each capability ID corresponding to a set of capability parameter sets, which may be considered as one or more types of capability information. For example, the first network device stores the mapping relationship between the capability ID and the capability information, so that the terminal device may send the capability ID when sending the capability information to the first network device, and the first network device may determine the capability information corresponding to the capability ID according to the capability ID. The capability information corresponds to the filtering information, so that the capability identifier, the capability information, and the filtering information may be considered to be in a one-to-one correspondence relationship. Then, the terminal device determines the first capability information and the second filtering information, and can determine the corresponding capability identifier.

In one implementation, the capability identification may be assigned by a device vendor (manufacturer-specific). For example, a device manufacturer may pre-configure a capability identifier and capability information corresponding to the capability identifier in advance, where the capability identifier may be preset in a terminal device before the terminal device leaves a factory, and the network device may also preset a mapping relationship between the capability identifier and the capability information. Optionally, the capability information corresponding to the capability identifier allocated by the equipment manufacturer may be all capability information, that is, the capability identifier allocated by the equipment manufacturer may correspond to a full set of capability parameters supported by the terminal equipment, and in this case, only one capability identifier needs to be preconfigured for one terminal equipment; alternatively, the capability information corresponding to the capability identifier allocated by the device manufacturer may be part of the capability information, that is, the capability identifier allocated by the device manufacturer may correspond to a capability parameter subset supported by the terminal device, in which case, one or more capability identifiers may be preconfigured for one terminal device.

In another implementation, the capability identification may also be network assigned. For example, the capability identifier allocated by the network may be a capability identifier allocated to the terminal device by the core network device after the terminal device accesses the network. For example, after the terminal device reports the capability information of the terminal device to the core network device, the core network device may allocate a capability identifier for the capability information, and store a mapping relationship between the capability identifier and the capability information. And after receiving the capability identifier distributed by the core network equipment, the terminal equipment also stores the mapping relation between the capability identifier and the capability information. It should be noted that, in this implementation, the capability identifier allocated by the core device may be unique in a PLMN network of an operator, that is, different capability information is allocated with different capability identifiers, so that the capability information corresponding to one capability identifier is unique.

Alternatively, the capability identifier allocated by the network may be a capability identifier allocated to the terminal device by the access network device (i.e., the "first network device" in this embodiment) after the terminal device accesses the network. For example, after the terminal device reports the capability information of the terminal device to the access network device, the access network device may allocate a capability identifier to the capability information, and store a mapping relationship between the capability identifier and the capability information. And after receiving the capability identifier distributed by the access network equipment, the terminal equipment also stores the mapping relation between the capability identifier and the capability information.

If the core network device allocates the capability identifier, the core network device may further send the mapping relationship between the capability identifier and the capability information to the access network device. Or, if the access network device allocates the capability identifier, the access network device may further send the mapping relationship between the capability identifier and the capability information to the core network device.

Wherein S32 may be an optional step.

S33, the terminal device sends a second message to the first network device, the first network device receives the second message from the terminal device, the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained by filtering the capability information of the terminal device according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and third filtering information.

After determining the first capability information, the terminal device may send a second message to the first network device, where the second message may carry and/or indicate the first capability information and the second filtering information. The first network device can thus know from the second filter information which capability information the first capability information comprises, or which parameters the first capability information comprises.

The second message is, for example, the UE capability message of S12 in the flow shown in fig. 1B, or may be another message.

The terminal device sends the second filtering information through the second message, which may have different modes.

In the first manner, a first information element of a second message carries first filtering information, and a second information element of the second message carries third filtering information, where the first information element is used for carrying filtering information from a first network device, and the second information element is used for carrying extended filtering information. In this way, the second message is considered to carry the second filtering information. In addition, in the first mode, the second message also carries the first capability information.

Taking the second message as an example of the UE capability message, the UE capability message includes an information element for carrying filtering information from the first network device, and the information element is, for example, an application frequency band list filter (appliedFreqBandListFilter). The terminal device may then carry the first filtered information from the first network device in the information element, which may be referred to as a first information element. In addition, an information element, for example, called a second information element, may be added to the UE capability message, and the second information element may carry extended filtering information, where the extended filtering information is filtering information that the first network device does not send to the terminal device, but the terminal device may still send corresponding capability information to the first network device. With respect to the scheme described above in the embodiment of the present application, the extended filtering information is the third filtering information. The terminal device may carry the third filtering information in the second information element.

For example, the second information element may comprise one or more bits (bits), and the second information element may be implemented by a reserved bit included in the UE capability message. Or, if the reserved bits included in the UE capability message are not enough, one or more bits may be added to the UE capability message, and the reserved bits included in the UE capability message and the added bits together serve as the second information element. The reserved bit in the UE capability message is used as the second cell as far as possible, the UE capability message does not need to be expanded, and compatibility is facilitated. Alternatively, instead of using the reserved bits of the UE capability message, one or more bits may be added to the UE capability message, and the added bits may be used as the second information element. The use of the newly added bits as the second information element may reduce the impact on the functionality of the original bits in the UE capability message.

After receiving the UE capability message, the first network device may obtain the first filtering information from the first information element and obtain the third filtering information from the second information element, so that it may be determined, according to the first filtering information and the third filtering information, which parameters are included in the first capability information carried by the UE capability message.

In a second manner, a first information element of the second message carries the second filtering information, and the first information element is used for carrying the filtering information from the first network device. In this way, the second message is considered to carry the second filtering information. In addition, in the second mode, the second message also carries the first capability information.

Taking the second message as the UE capability message as an example, the first information element is, for example, appliedfreqbandlist filter. The first cell in the UE capability message is originally used to carry the filtering information from the first network device, but in this embodiment of the present application, the content carried by the first cell may be changed, or the function of the first cell may be changed, so that the first cell carries the filtering information corresponding to the first capability information actually sent by the terminal device, that is, the first cell carries the second filtering information. By the method, the original cell for bearing the filtering information can be directly utilized to bear the second filtering information without setting a new cell, so that the structure of the UE capability message is not changed, and the complexity of the first network equipment for analyzing the UE capability message can be reduced. And after receiving the UE capability message, the first network device may obtain the second filtering information from the first information element, so as to determine the parameter included in the first capability information.

As an optional manner, after receiving the UE capability message, the first network device may compare the second filtering information carried by the first cell with the first filtering information sent by the first network device to the terminal device, so as to determine that the terminal device sends the parameter corresponding to the expanded filtering information in addition to the parameter corresponding to the first filtering information.

In a third manner, the first information element of the second message carries the second filtering information, and the second message also carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes the extended filtering information. In this way, the second message is considered to carry the second filtering information. In addition, in the third mode, the second message also carries the first capability information.

In addition, in order to enable the first network device to clarify that the terminal device further sends the capability parameter corresponding to the extended filtering information to the first network device, or in order to enable the first network device to clarify that the second filtering information sent by the terminal device further includes the extended filtering information (in this embodiment, the extended filtering information is third filtering information), in the third manner, the UE capability message may further include indication information, and the indication information may indicate that the second filtering information includes the extended filtering information. Therefore, after the first network device receives the UE capability message, it can be clear according to the indication information that the second filtering information carried by the first information element includes the extended filtering information. The indication information may, for example, occupy one or more bits. For example, the indication information occupies 1 bit, if the value of the 1 bit is "1", it indicates that the second filtering information includes the extended filtering information, and if the value of the 1 bit is "0", it indicates that the second filtering information does not include the extended filtering information (at this time, the second filtering information is the same as the first filtering information). Or, the indication information occupies one or more bits, if the UE capability message includes the indication information, it indicates that the second filtering information includes the extended filtering information, and if the UE capability message does not include the indication information, it indicates that the second filtering information does not include the extended filtering information, and at this time, the second filtering information is the same as the first filtering information.

Wherein the indication information may be carried in the first information element. For example, if the first cell has remaining bits in addition to the second filtering information, the remaining bits can be used to carry the first cell, or, whether the first cell has remaining bits in addition to the second filtering information or not, the first cell can be expanded without using the remaining bits, one or more bits are added to the first cell, and the added bits are used to carry the indication information. For example, the reserved bits included in the second message may be used as the bits added to the first cell, so that the structure of the second message does not need to be changed, which is beneficial for compatibility, or the reserved bits in the second message may not be used, and the bits added to the first cell are equivalent to extending the second message, which does not affect other cells of the second message.

Alternatively, the indication information may be carried in the second message, but not in the first information element, but in another field (field) of the second message. For example, the reserved bits included in the second message may be utilized to carry the indication information, so that the structure of the second message does not need to be changed, which is beneficial to compatibility; or, if the second message does not include the reserved bits, or the second message includes the reserved bits, the embodiment of the present application does not utilize the reserved bits, but adds new bits to the second message to carry the indication information, which is equivalent to extending the second message, so that other information elements of the second message are not affected.

As described above, three ways of sending the second filtering information by the terminal device are introduced, and which is selected in the implementation can be configured by the first network device, or determined by the terminal device itself, or can be specified by a protocol. Alternatively, the terminal device may send the second filtering information not by any way, but by other ways, which are all within the protection scope of the embodiment of the present application.

As an alternative way for the second message to carry or indicate the first capability information and the second filtering information, the second message may not carry the first capability information and the second filtering information, but indicate the first capability information and the second filtering information. For example, the terminal device further determines the capability identifier in S32, and the second message may also carry the capability identifier, which is used to indicate the first capability information and the second filtering information. For example, the network device also stores a mapping relationship between the capability identifier and the capability information (or, stores a mapping relationship between the capability identifier, the capability information, and the filtering information), and after receiving the second message, the first network device may determine the corresponding first capability information and the second filtering information according to the capability identifier.

In this way, the signaling overhead of the second message may be reduced.

The capability identifier can be carried in the first cell, and at this time, the first cell does not need to carry filtering information, and only needs to carry the capability identifier. Or the capability identifier may also be carried in other cells of the second message, such as a newly added second cell. There is no restriction on the location of the capability identity in the second message.

In addition, after receiving the capability identifier, the first network device may also send the capability identifier to the core network device. For example, the core network device also stores a mapping relationship between the capability identifier and the capability information (or, stores a mapping relationship between the capability identifier, the capability information, and the filtering information), and after receiving the second message, the core network device may determine the corresponding first capability information and the second filtering information according to the capability identifier. Or, the first network device may finally determine the first capability information and the second filtering information no matter whether the first network device receives the first capability information and the second filtering information or receives the capability identifier, and the first network device may also directly send the first capability information and the second filtering information to the core network device.

Or, in another manner, the terminal device may also send the second message to the core network device, where the second message may be a non-access stratum (NAS) message. For example, the core network device stores a mapping relationship between the capability identifier and the capability information (or, stores a mapping relationship between the capability identifier, the capability information, and the filtering information), after receiving the second message, the core network device may determine the corresponding first capability information and the second filtering information according to the capability identifier. In addition, after receiving the second message, the core network device may send the capability identifier to the first network device, for example, the first network device stores a mapping relationship between the capability identifier and the capability information (or stores a mapping relationship between the capability identifier, the capability information, and the filtering information), and after receiving the second message, the first network device may determine the corresponding first capability information and the second filtering information according to the capability identifier. Or, the core network device may finally determine the first capability information and the second filtering information no matter whether the first capability information and the second filtering information are received or the capability identifier is received, and the core network device may also directly send the first capability information and the second filtering information to the first network device.

Alternatively, as yet another alternative way for the second message to carry or indicate the first capability information and the second filtering information, the second message may also indicate the first capability information and carry the second filtering information. For example, the second message may carry the second filtering information, and the manner of carrying the second filtering information may refer to the three manners described above. In addition, the terminal device also determines the capability identifier in S32, and then the second message may also carry the capability identifier, and the capability identifier is used to indicate the first capability information. For example, the network device also stores the mapping relationship between the capability identifier and the capability information, and after receiving the second message, the first network device may determine the corresponding first capability information according to the capability identifier.

Alternatively, as another optional way for the second message to carry or indicate the first capability information and the second filtering information, the second message may also carry the first capability information and indicate the second filtering information. For example, the second message may carry the first capability information. In addition, the terminal device also determines the capability identifier in S32, and then the second message may also carry the capability identifier, and the capability identifier is used to indicate the first capability information. For example, the network device also stores the mapping relationship between the capability identifier and the capability information, and after receiving the second message, the first network device may determine the corresponding first capability information according to the capability identifier.

In summary, the terminal device may directly send the first capability information and the second filtering information to the first network device, which is relatively simple and direct, or may also send the capability identifier to the first network device, which may save signaling overhead. The way of sending information to the first network device by the terminal device is flexible, and how to send the information can be specified by a protocol or configured by the first network device.

In view of the requirements of the first network device, or in view of the capabilities of the first network device, it may be that the first network device does not support receiving the capability parameters corresponding to the extended filtering information from the terminal device at any time, for example, for some first network devices, or at some particular time, the first network device may only wish to receive the capability parameters corresponding to the first filtering information from the terminal device. Therefore, for more flexibility, as an optional manner in this embodiment of the application, if the first network device supports receiving the capability parameter corresponding to the extended filtering information from the terminal device, the first network device may send configuration information to the terminal device, where the configuration information may indicate that the terminal device is capable of sending the capability information based on the extended filtering information. For example, the configuration information may be sent before S31, or the configuration information may be carried in the first message. The first network device sends the configuration information, and there may be several cases:

in the first case, the first network device does not necessarily send configuration information. For example, the first network device sending the configuration information indicates that the first network device indicates that the terminal device is capable of sending the capability information based on the extended filtering information, and the first network device not sending the configuration information indicates that the first network device indicates that the terminal device is not capable of sending the capability information based on the extended filtering information. The terminal device may send the capability information to the first network device based on the extended filtering information as long as the terminal device receives the configuration information, and may send the capability information to the first network device based on only the filtering information from the first network device without sending the capability information to the first network device based on the extended filtering information if the terminal device does not receive the configuration information. In this case, the configuration information may occupy one bit or a plurality of bits, and the content of the configuration information is not limited.

In the second case, the first network device must send configuration information, which may occupy one bit or multiple bits. Taking the configuration information occupying one bit as an example, if the value of the one bit is "1", it indicates that the first network device indicates that the terminal device can send the capability information based on the extended filtering information. The terminal device may send capability information to the first network device based on the extended filtering information as long as the configuration information is received. Or, if the value of the bit is "0", it indicates that the first network device indicates that the terminal device cannot transmit the capability information based on the extended filtering information. The terminal device, upon receiving the configuration information, is aware that the capability information cannot be transmitted to the first network device based on the extended filtering information, but only to the first network device based on the filtering information from the first network device.

Of course, the first network device may also send the configuration information in other manners, which is not limited specifically.

By the method, the control capability of the first network equipment is enhanced, and the first network equipment can instruct the terminal equipment to send the capability information to the first network equipment based on the expanded filtering information when in need, so that the first network equipment can obtain richer capability parameters. When the first network device does not have such a requirement, for example, the storage space of the first network device is limited, or the load of the first network device is heavy, the first network device may instruct the terminal device not to send the capability information to the first network device based on the extended filtering information, and then the terminal device only sends the capability information to the first network device according to the filtering information sent by the first network device, so that the load of the first network device may be reduced.

And S34, the first network device configures the terminal device according to the first capability information.

After the first network device obtains the first capability information, it can perform corresponding configuration on the terminal device according to the first capability information. For example, the first capability information includes measurement parameters of the terminal device, and the first network device may configure the terminal device to perform corresponding measurement according to the measurement parameters of the terminal device. Therefore, the configuration of the network equipment can accord with the actual capability of the terminal equipment, so that the capability of the terminal equipment can be better utilized, and the terminal equipment can also work better. For the first network device, it is required to obtain the capability information corresponding to the first filtering information, and then the first network device may configure the terminal device according to third capability information included in the first capability information, where the third capability information is the capability information corresponding to the first filtering information.

If the terminal device is switched, for example, the terminal device is switched from the first network device to the second network device, the first network device may actively send the second capability information included in the first capability information to the second network device, or the second network device may also initiate a request to the first network device, so that the first network device sends the second capability information to the second network device. The second capability information is capability information corresponding to the third filtering information. In other words, if the terminal device is switched to the new network device, the source network device may send the second capability information corresponding to the third filtering information to the new network device, where the second capability information is likely to include capability information required by the new network device, and the new network device may not need to request the terminal device to obtain the capability information of the terminal device after receiving the second capability information, thereby reducing signaling overhead and reducing time delay. Optionally, the first network device may send the second capability information to the second network device, and at the same time, may also send the third filtering information to the second network device, so that the second network device may directly know whether the second capability information includes the required capability information by checking the third filtering information.

As an alternative, the first network device may also send the first capability information directly to the second network device, so that the capability information obtained by the second network device is richer. For example, when the terminal device is switched again, the second network device may also resend the first capability information to the new network device, and since the first capability information includes many parameters, the capability information required by the new network device may also be included therein, and the new network device does not need to request the terminal device to obtain the capability information, thereby further reducing signaling overhead. Since the first capability information includes the second capability information, the first network device transmits the first capability information to the second network device, that is, transmits the second capability information to the second network device. Optionally, the first network device may send the first capability information to the second network device, and at the same time, may also send the second filtering information to the second network device, so that the second network device may directly know whether the first capability information includes the required capability information by checking the second filtering information.

In this embodiment, the terminal device may send, in addition to the capability information corresponding to the first filtering information, the capability information corresponding to the expanded filtering information to the first network device, so that the first network device may obtain more capability information. If the terminal device is switched to the second network device, the second network device can obtain more capability information from the first network device, and the capability information can possibly meet the requirement of the second network device, so that the second network device does not need to request the terminal device to obtain the capability information, and the signaling overhead is saved.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 4 is a schematic block diagram of a communication device 400 provided in an embodiment of the present application. Illustratively, the communication device 400 is, for example, a terminal device 400. The terminal device 400 includes a processing module 410 and a transceiver module 420. Among other things, the processing module 410 may be used to perform all operations performed by the terminal device in the embodiment shown in fig. 3 except for transceiving operations, such as S32, and/or other processes for supporting the techniques described herein. Transceiver module 420 may be used to perform all transceiving operations performed by a terminal device in the embodiment illustrated in FIG. 3, e.g., S31 and S33, and/or other processes for supporting the techniques described herein. The transceiver module 420 may be a functional module or a general term for two functional modules, which are a transmitting module and a receiving module, respectively, and the transmitting module is used to perform all the transmitting operations performed by the terminal device in the embodiment shown in fig. 3, for example, S33, and/or other processes for supporting the techniques described herein; the receiving module is used to perform all receiving operations performed by the terminal device in the embodiment shown in fig. 3, e.g., S31, and/or other processes for supporting the techniques described herein.

For example, the transceiver module 420 is configured to receive a first message from a first network device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device 400 to filter capability information of the terminal device 400;

a processing module 410, configured to determine first capability information according to the first filtering information;

the transceiver module 420 is further configured to send a second message to the first network device, where the second message carries and/or indicates the first capability information and the second filtering information, the first capability information includes capability information obtained after filtering capability information of the terminal device 400 according to the second filtering information, the first capability information is used for the first network device to configure the terminal device 400, and the second filtering information includes the first filtering information and the third filtering information.

As an optional implementation manner, a first information element of the second message carries the first filtering information, and a second information element of the second message carries the third filtering information, where the first information element is used to carry the filtering information from the first network device, and the second information element is used to carry extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry filtering information from the first network device; or, a first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device, and the indication information is used to indicate that the second filtering information includes extended filtering information.

As an optional implementation, the second message carries and/or indicates the first capability information and the second filtering information, and includes: the second message carries a capability identifier, where the capability identifier is used to indicate the first capability information, or the capability identifier is used to indicate the first capability information and the second filtering information.

As an optional implementation manner, the first capability information includes one or any combination of the following items:

packet data convergence protocol parameters of the terminal device 400, radio link layer control parameters of the terminal device 400, medium access control parameters of the terminal device 400, physical layer parameters of the terminal device 400, radio frequency parameters of the terminal device 400, or measurement parameters of the terminal device 400.

As an optional implementation, the transceiver module 420 is further configured to receive configuration information from the first network device, where the configuration information is used to indicate that the terminal device 400 is capable of sending capability information based on the extended filtering information.

As an alternative embodiment, the processing module 410 is further configured to perform one or any combination of the following:

determining the third filtering information according to history information, wherein the history information comprises filtering information historically received by the terminal device 400;

determining the third filtering information according to first verified information, wherein the first verified information comprises filtering information sent by the terminal device 400 historically; or, determining the third filtering information according to second experience information, where the second experience information includes filtering information used in network deployment.

It should be understood that the processing module 410 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 420 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 5, an embodiment of the present application further provides a communication device 500. Illustratively, the communication device 500 is, for example, a terminal device 500. The terminal device 500 comprises a processor 510, a memory 520 and a transceiver 530, wherein the memory 520 stores instructions or programs and the processor 510 is configured to execute the instructions or programs stored in the memory 520. When the instructions or programs stored in the memory 520 are executed, the processor 510 is configured to perform the operations performed by the processing module 410 in the above embodiments, and the transceiver 530 is configured to perform the operations performed by the transceiver module 420 in the above embodiments. The transceiver 530 may be a functional component that can perform both a receiving function and a transmitting function, or the transceiver 530 may be a general term for two functional components, that is, a transmitter and a receiver, where the transmitter is used to perform a function of the terminal device 500 transmitting information to another device, and the receiver is used to perform a function of the terminal device 500 receiving information from another device.

It should be understood that the terminal device 400 or the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 3, and operations and/or functions of each module in the terminal device 400 or the terminal device 500 are respectively for implementing the corresponding flow in the embodiment shown in fig. 3, and are not described herein again for brevity.

Fig. 6 is a schematic block diagram of a communication device 600 provided in an embodiment of the present application. Illustratively, the communication device 600 is, for example, a first network device 600. The first network device 600 includes a processing module 610 and a transceiver module 620. Among other things, the processing module 610 may be used to perform all operations performed by the first network device in the embodiment shown in fig. 3 except transceiving operations, e.g., S34, and/or other processes for supporting the techniques described herein. The transceiving module 620 may be used to perform all transceiving operations performed by the first network device in the embodiment illustrated in fig. 3, e.g., S31 and S33, and/or other processes for supporting the techniques described herein. The transceiver module 620 may be a functional module or may be a general term for two functional modules, which are a transmitting module and a receiving module, respectively, and the transmitting module is configured to perform all transmitting operations performed by the first network device in the embodiment shown in fig. 3, for example, S31, and/or other processes for supporting the techniques described herein; the receiving module is used to perform all receiving operations performed by the first network device in the embodiment shown in fig. 3, e.g., S33, and/or other processes for supporting the techniques described herein.

For example, the transceiver module 620 is configured to send a first message to a terminal device, where the first message carries first filtering information, and the first filtering information is used to instruct the terminal device to filter capability information of the terminal device;

the transceiver module 620 is further configured to receive a second message from the terminal device, where the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, and the second filtering information includes the first filtering information and third filtering information;

a processing module 610, configured to configure the terminal device according to the first capability information.

As an optional implementation manner, the second information element of the second message carries the third filtering information, and the first information element of the second message carries the first filtering information, where the first information element is used to carry the filtering information from the first network device 600, and the second information element is used to carry the extended filtering information; or, a first information element of the second message carries the second filtering information, where the first information element is used to carry the filtering information from the first network device 600; or, the first information element of the second message carries the second filtering information, and the second message further carries indication information, where the first information element is used to carry the filtering information from the first network device 600, and the indication information is used to indicate that the second filtering information includes extended filtering information.

As an optional implementation manner, the transceiver module 620 is further configured to send configuration information to the terminal device, where the configuration information is used to indicate that the terminal device is capable of sending capability information based on extended filtering information.

As an optional implementation manner, the transceiver module 620 is further configured to send second capability information to a second network device when the terminal device is handed over from the first network device 600 to the second network device, where the second capability information is used by the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

It should be understood that the processing module 610 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 620 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 7, an embodiment of the present application further provides a communication device 700. Illustratively, the communication device 700 is, for example, a first network device 700. The first network device 700 comprises a processor 710, a memory 720 and a transceiver 730, wherein the memory 720 stores instructions or programs therein, and the processor 710 is configured to execute the instructions or programs stored in the memory 720. When the instructions or programs stored in the memory 720 are executed, the processor 710 is configured to perform the operations performed by the processing module 610 in the above embodiments, and the transceiver 730 is configured to perform the operations performed by the transceiver module 620 in the above embodiments. The transceiver 730 may be a functional component that can perform both a receiving function and a transmitting function, or the transceiver 730 may be a general term for two functional components, that is, a transmitter and a receiver, where the transmitter is used to perform a function of the first network device 700 transmitting information to another device, and the receiver is used to perform a function of the first network device 700 receiving information from another device.

It should be understood that the first network device 600 or the first network device 700 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 3, and operations and/or functions of each module in the first network device 600 or the first network device 700 are respectively for implementing the corresponding flow in the embodiment shown in fig. 3, and are not described herein again for brevity.

The embodiment of the application also provides a communication device, and the communication device can be terminal equipment or a circuit. The communication apparatus may be used to perform the actions performed by the terminal device in the method embodiment shown in fig. 3 described above.

When the communication device is a terminal device, fig. 8 shows a simplified structural diagram of the terminal device. For easy understanding and illustration, in fig. 8, the terminal device is exemplified by a mobile phone. As shown in fig. 8, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 8. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 8, the terminal device includes a transceiving unit 810 and a processing unit 820. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device used for implementing the receiving function in the transceiver 810 may be regarded as a receiving unit, and a device used for implementing the transmitting function in the transceiver 810 may be regarded as a transmitting unit, that is, the transceiver 810 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiver 810 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the method embodiment shown in fig. 3, and the processing unit 820 is configured to perform other operations besides the transceiving operation on the terminal device side in the method embodiment shown in fig. 3.

For example, in one implementation, the transceiving unit 810 is configured to perform all transceiving steps on the terminal device side in the embodiment shown in fig. 3, such as S31 and S33. A processing unit 820 for performing other operations on the terminal device side in the embodiment shown in fig. 3 besides transceiving operations, e.g., S32, and/or other procedures for supporting the techniques described herein.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

When the communication apparatus in the embodiment of the present application is a terminal device, reference may be made to the device shown in fig. 9. As an example, the device may perform functions similar to processor 910 of FIG. 9. In fig. 9, the apparatus includes a processor 910, a transmit data processor 920, and a receive data processor 930. The processing module 410 in the above embodiments may be the processor 910 in fig. 9, and performs corresponding functions; the transceiver module 420 in the above embodiments may be the transmit data processor 920 and/or the receive data processor 930 in fig. 9.

Although fig. 9 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 10 shows another form of the present embodiment. The processing device 1000 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1003 and an interface 1004. The processor 1003 performs the functions of the processing module 410, and the interface 1004 performs the functions of the transceiver module 420. As another variation, the modulation subsystem includes a memory 1006, a processor 1003 and a program stored in the memory 1006 and executable on the processor, and the processor 1003 executes the program to implement the method on the terminal device side in the method embodiment shown in fig. 3. It should be noted that the memory 1006 may be non-volatile or volatile, and may be located inside the modulation subsystem or in the processing device 1000, as long as the memory 1006 can be connected to the processor 1003.

The embodiment of the application also provides a communication system. The communication system may comprise the first network device according to the embodiment shown in fig. 3 and at least one terminal device according to the embodiment shown in fig. 3. The first network device is, for example, the first network device 600 in fig. 6 or the first network device 700 in fig. 8, and the terminal device is, for example, the terminal device 400 in fig. 4 or the terminal device 500 in fig. 5. For example, the first network device may be used to perform all operations performed by the first network device in the embodiment shown in fig. 3, such as S31, S32, and S34 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein. The terminal device may be used to perform all of the operations performed by the terminal device in the embodiment shown in fig. 3, such as S31, S32, and S33 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the terminal device in the embodiment shown in fig. 3 and provided by the foregoing method embodiment.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, may implement the process related to the first network device in the embodiment shown in fig. 3 provided in the foregoing method embodiments.

An embodiment of the present application further provides a computer program product containing instructions, where the instructions, when executed, perform the method on the terminal device side in the method embodiment shown in fig. 3.

An embodiment of the present application further provides a computer program product containing instructions, where the instructions, when executed, perform the method on the first network device side in the method embodiment shown in fig. 3.

It should be understood that the processor mentioned in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific implementation of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting capability information, comprising:

a terminal device receives a first message from a first network device, wherein the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter capability information of the terminal device;

the terminal device sends a second message to the first network device, the second message carries and/or indicates first capability information and second filtering information, the first capability information includes capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, the first capability information is used for the first network device to configure the terminal device, and the second filtering information includes the first filtering information and third filtering information.

2. The method of claim 1,

a first information element of the second message carries the first filtering information, and a second information element of the second message carries the third filtering information, wherein the first information element is used for carrying filtering information from the first network device, and the second information element is used for carrying extended filtering information; or the like, or, alternatively,

a first information element of the second message carries the second filtering information, wherein the first information element is used for carrying the filtering information from the first network equipment; or the like, or, alternatively,

the first information element of the second message carries the second filtering information, and the second message also carries indication information, the first information element is used for carrying the filtering information from the first network device, and the indication information is used for indicating that the second filtering information includes extended filtering information.

3. The method of claim 1, wherein the second message carries and/or indicates first capability information and second filtering information, and wherein the second message comprises:

4. The method according to any one of claims 1 to 3, wherein the first capability information comprises one or any combination of:

5. The method according to any one of claims 1 to 4, further comprising:

the terminal device receives configuration information from the first network device, wherein the configuration information is used for indicating that the terminal device can send capability information based on extended filtering information.

6. The method according to any one of claims 1 to 5, further comprising one or any combination of:

the terminal device determines the third filtering information according to first verified information, wherein the first verified information comprises filtering information sent by the terminal device historically; or the like, or, alternatively,

and the terminal equipment determines the third filtering information according to second experience information, wherein the second experience information comprises filtering information used in network deployment.

7. A method of receiving capability information, comprising:

a first network device sends a first message to a terminal device, wherein the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter the capability information of the terminal device;

the first network device receives a second message from the terminal device, the second message carries and/or indicates first capability information and second filtering information, the first capability information comprises capability information obtained after the capability information of the terminal device is filtered according to the second filtering information, and the second filtering information comprises the first filtering information and third filtering information;

and the first network equipment configures the terminal equipment according to the first capability information.

8. The method of claim 7,

a second information element of the second message carries the third filtering information, and a first information element of the second message carries the first filtering information, wherein the first information element is used for carrying filtering information from the first network device, and the second information element is used for carrying extended filtering information; or the like, or, alternatively,

9. The method of claim 7, wherein the second message carries and/or indicates first capability information and second filtering information, and wherein the second message comprises:

10. The method according to any one of claims 7 to 9, wherein the first capability information comprises one or any combination of:

11. The method according to any one of claims 7 to 10, further comprising:

12. The method according to any one of claims 7 to 11, further comprising:

when the terminal device is switched from the first network device to a second network device, the first network device sends second capability information to the second network device, the second capability information is used for the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

13. A communication device, comprising:

a transceiver, configured to receive a first message from a first network device, where the first message carries first filtering information, and the first filtering information is used to instruct a communication device to filter capability information of a terminal device;

a processor for determining first capability information from the first filtered information;

the transceiver is further configured to send a second message to the first network device, where the second message carries and/or indicates the first capability information and second filtering information, the first capability information includes capability information obtained after filtering the capability information of the communication device according to the second filtering information, the first capability information is used for the first network device to configure the communication device, and the second filtering information includes the first filtering information and third filtering information.

14. The communication device of claim 13,

15. The communications device of claim 13, wherein the second message carries and/or indicates first capability information and second filtering information, and wherein the second message comprises:

16. The communication device according to any of claims 13 to 15, wherein the first capability information comprises one or any combination of:

packet data convergence protocol parameters of the communication device, radio link layer control parameters of the communication device, medium access control parameters of the communication device, physical layer parameters of the communication device, radio frequency parameters of the communication device, or measurement parameters of the communication device.

17. The communication device according to any of claims 13 to 16, wherein the transceiver is further configured to receive configuration information from the first network device, the configuration information indicating that the terminal device is capable of sending capability information based on the extended filtering information.

18. The communication device of any of claims 13 to 17, wherein the processor is further configured to:

determining the third filtering information according to historical information, wherein the historical information comprises filtering information historically received by the communication device;

determining the third filtering information based on first experience information, the first experience information comprising filtering information historically sent by the communication device; or the like, or, alternatively,

determining the third filtering information according to second experience information, wherein the second experience information comprises filtering information used in network deployment.

19. A communication device, comprising:

the transceiver is used for sending a first message to a terminal device, wherein the first message carries first filtering information, and the first filtering information is used for indicating the terminal device to filter the capability information of the terminal device;

20. The communication device of claim 19,

21. The communications device of claim 19, wherein the second message carries and/or indicates first capability information and second filtering information, comprising:

22. The communication device according to any of claims 19 to 21, wherein the first capability information comprises one or any combination of:

23. The device according to any of claims 19 to 22, wherein the transceiver is further configured to send configuration information to the terminal device, the configuration information indicating that the terminal device is capable of sending capability information based on extended filtering information.

24. The communication device according to any one of claims 19 to 23, wherein the transceiver is further configured to send second capability information to a second network device when the terminal device is handed over from the first network device to the second network device, where the second capability information is used for the second network device to configure the terminal device, and the second capability information includes capability information corresponding to the third filtering information.

25. A communication system comprising a communication device according to any of claims 1 to 6 and a communication apparatus according to any of claims 7 to 12.

26. A computer-readable storage medium, characterized in that it stores a computer program which, when run on a computer, causes the computer to perform the method of any of claims 1-6, or causes the computer to perform the method of any of claims 7-12.

27. A chip system, comprising:

a memory: for storing instructions;

a processor configured to call and execute the instructions from the memory, so that a communication device installed with the chip system executes the method according to any one of claims 1 to 6, or so that the communication device executes the method according to any one of claims 7 to 12.

28. A computer program product, characterized in that it comprises a computer program which, when run on a computer, causes the computer to carry out the method according to any one of claims 1 to 6, or causes the computer to carry out the method according to any one of claims 7 to 12.