CN111866992B

CN111866992B - Communication method and device

Info

Publication number: CN111866992B
Application number: CN201910364084.XA
Authority: CN
Inventors: 李秉肇; 邝奕如
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2022-04-05
Anticipated expiration: 2039-04-30
Also published as: CN111866992A

Abstract

The embodiment of the application provides a communication method and a communication device, wherein the method comprises the following steps: the access network equipment sends first information of the terminal equipment to the core network equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment; the access network device sends a first message to the terminal device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate the at least one RAT supported by the terminal device. By the method, the performance of terminal equipment capacity management can be improved, and the communication efficiency is improved.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.

Background

After establishing a Radio Resource Control (RRC) connection with a base station, a terminal device needs to report the capability of the terminal device to a network side when the network side does not store the capability of the terminal device before communicating with the base station. The base station can configure different resources for the terminal equipment according to the capability of the terminal equipment and provide different grades of service.

When reporting the capability, the terminal device generally reports the capability according to the Radio Access Technology (RAT) supported by the terminal device as the granularity. With the continuous evolution of mobile communication technology, the types of RATs supported by a terminal device are increasing, for example, the terminal device may simultaneously support Long Term Evolution (LTE), New Radio technology (NR), enhanced-NR dual connectivity (EN-DC), multi-RAT dual connectivity (multi-RAT dual connectivity), and other technologies.

With the evolution of technology, more RAT types may be present in the field of communications. In particular, how to efficiently perform capability management and interaction of a terminal device in a scenario of interaction of the terminal device, an access network device and a core network device is a technical problem which needs to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a communication method and a communication device, which are used for solving the problems of management and interaction of terminal equipment capability information.

In a first aspect, an embodiment of the present application provides a communication method, where the method includes: the access network equipment sends first information of the terminal equipment to the core network equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment; the access network device sends a first message to the terminal device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate the at least one RAT supported by the terminal device.

By the method, the capability identifier is distributed by the core network equipment, and the core network equipment forwards the distributed capability identifier to the terminal equipment through the access network equipment. And the terminal equipment receives the second information while receiving the capability identifier. The terminal equipment can determine the capacity associated with the capacity identifier according to the second information by indicating the second information associated with the capacity identifier to the terminal equipment, so that the capacity associated with the terminal equipment is the same as the capacity associated with the capacity identifier allocated by the core network equipment. Therefore, the capability associated with the capability identifier can be determined according to the second information, and the capability associated with the capability identifier can be accurately determined even if the core network equipment distributes the capability identifier.

In a possible implementation, the method further includes: the access network equipment sends the second information to the core network equipment; wherein, the first message is a non-access stratum NAS message, and before the access network device sends the first message to the terminal device, the method further includes: the access network device receives the first message from the core network device.

In a possible implementation manner, the second information further includes at least one filtering parameter, and the at least one filtering parameter corresponds to the at least one RAT supported by the terminal device.

By sending the filtering parameters, the terminal device can more accurately determine the capacity associated with the capacity identifier, so that the capacity determined by the terminal device and the capacity determined by the access network device according to the filtering parameters are the same, and the situation that the capacities of the capacity identifiers associated at the network side and the terminal side are inconsistent is avoided.

In one possible implementation, the at least one RAT includes a plurality of RATs, and the method further includes: the access network equipment sends at least two capability query messages to the terminal equipment; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment; the access network equipment receives at least two capability reporting messages from the terminal equipment; the at least two capability reporting messages include capabilities corresponding to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

In a possible implementation manner, each of the at least two capability query messages includes a filtering parameter; the filtering parameters included in the at least two capability query messages are part or all of at least one filtering parameter included in the second information.

In a possible implementation, the method further includes: the access network device obtains third information, where the third information includes capabilities corresponding to one or more RATs in at least one RAT supported by the terminal device, and the capabilities included in the third information are partial or all capabilities in the first information.

In a possible implementation manner, the filtering parameters corresponding to the one or more RATs are part or all of at least one filtering parameter included in the second information.

In a second aspect, the present application provides an apparatus. The apparatus has a function of implementing the access network device according to the first aspect, for example, the apparatus includes a module, an element or means (means) for executing the steps according to the first aspect, and the function, the element or the means (means) may be implemented by software, or implemented by hardware executing corresponding software.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and functions performed by the processing unit and the transceiver unit may correspond to steps performed by the access network device according to the first aspect.

In one possible design, the apparatus includes a processor, and may further include a transceiver, where the transceiver is configured to transmit and receive signals, and the processor executes program instructions to implement the method performed by the access network device in any possible design or implementation manner of the first aspect.

Wherein the apparatus may further comprise one or more memories for coupling with the processor. The one or more memories may be integrated with the processor or separate from the processor, which is not limited in this application.

In one possible approach, the memory stores the necessary computer program instructions and/or data to implement the functionality of the access network device referred to in the first aspect above. The processor may execute the computer program instructions stored in the memory to perform the method performed by the access network device in any possible design or implementation of the first aspect.

In a third aspect, an embodiment of the present application provides a first communication method, including: the core network equipment receives first information from the access network equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

the core network device allocates a capability identifier for a capability corresponding to at least one RAT supported by the terminal device and included in the first information, and sends the capability identifier to the access network device; the capability identifier is used for identifying the capability corresponding to at least one RAT supported by the terminal equipment and included in the first information.

By the method, the capability identifier is distributed by the core network equipment, and the core network equipment forwards the distributed capability identifier to the terminal equipment through the access network equipment. And the terminal equipment receives the second information while receiving the capability identifier. The terminal equipment can determine the capacity associated with the capacity identifier according to the second information, so that the capacity associated with the capacity identifier can be accurately determined under the condition that the core network equipment distributes the capacity identifier.

In a possible implementation, the method further includes: the core network equipment receives second information from the access network equipment; the second information is used for indicating the at least one RAT supported by the terminal equipment; the sending, by the core network device, the capability identifier to the access network device includes: and the core network equipment sends a first message to the access network equipment, wherein the first message comprises the capability identification and the second information.

In a possible implementation manner, the second information further includes filtering parameters corresponding to each RAT in the at least one RAT.

In a fourth aspect, the present application provides an apparatus. The apparatus has a function of implementing the core network device according to the third aspect, for example, the apparatus includes a module, a unit, or means (means) for executing the steps according to the third aspect, and the function, the unit, or the means (means) may be implemented by software, or implemented by hardware executing corresponding software.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and functions performed by the processing unit and the transceiver unit may correspond to steps performed by the core network device according to the third aspect.

In one possible design, the apparatus includes a processor, and may further include a transceiver, where the transceiver is configured to transmit and receive signals, and the processor executes the program instructions to implement the method performed by the core network device in any possible design or implementation manner of the third aspect.

In a possible manner, the memory stores the necessary computer program instructions and/or data to implement the functionality of the core network device according to the third aspect described above. The processor may execute the computer program instructions stored in the memory to perform the method performed by the core network device in any possible design or implementation manner of the third aspect.

In a fifth aspect, an embodiment of the present application provides a first communication method, including: the method comprises the steps that a terminal device receives a first message from an access network device, wherein the first message comprises a capability identifier and second information associated with the capability identifier, and the second information is used for indicating at least one RAT supported by the terminal device; and the terminal equipment determines the capability associated with the capability identifier in the capabilities corresponding to the at least one RAT supported by the terminal equipment according to the second information.

By the method, the terminal equipment receives the second information while receiving the capability identification. The terminal equipment can determine the capacity associated with the capacity identifier according to the second information by indicating the second information associated with the capacity identifier to the terminal equipment, so that the capacity associated with the terminal equipment is the same as the capacity associated with the capacity identifier allocated by the core network equipment. Therefore, the capability associated with the capability identifier can be determined according to the second information, and the capability associated with the capability identifier can be accurately determined even if the core network equipment distributes the capability identifier.

In a possible implementation, the method further includes: the terminal equipment receives at least two capability inquiry messages from the access network equipment; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment; the terminal equipment sends at least two capacity reporting messages to the access network equipment; the at least two capability reporting messages correspond to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

In a possible implementation manner, the determining, by the terminal device according to the second information, a capability associated with the capability identifier in the capabilities corresponding to the at least one RAT supported by the terminal device includes: and the terminal equipment determines that the capability corresponding to the first RAT which is sent to the access network equipment for the last time is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

In a possible implementation manner, the second information further includes at least one filtering parameter; the determining, by the terminal device, that the capability of the first RAT last sent to the access network device is associated with the capability identifier includes: and the terminal equipment determines that the capacity matched with the filtering parameter corresponding to the first RAT is associated with the capacity identification in the capacity corresponding to the first RAT which is sent to the access network equipment for the last time.

By filtering the parameters, the terminal device can more accurately determine the capacity associated with the capacity identifier, so that the terminal device and the access network device have the same capacity determined according to the filtering parameters, and the situation that the capacities of the capacity identifiers associated on the network side and the terminal side are inconsistent is avoided.

In a possible implementation manner, the determining, by the terminal device according to the second information, a capability associated with the capability identifier in the capabilities corresponding to the at least one RAT supported by the terminal device includes: the terminal device determines that a capability corresponding to a first RAT is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

In a possible implementation manner, the second information further includes at least one filtering parameter; the determining, by the terminal device, the capability associated with the capability identifier in the capability corresponding to the at least one RAT supported by the terminal device according to the second information includes: the terminal equipment determines that the capability matched with the filtering parameter corresponding to the first RAT is associated with the capability identifier; the first RAT is any one of the at least one RAT.

In a sixth aspect, the present application provides an apparatus. The apparatus has a function of implementing the terminal device according to the fifth aspect, for example, the apparatus includes a module, a unit, or means (means) for executing the steps according to the fifth aspect, and the function, the unit, or the means (means) may be implemented by software, or implemented by hardware executing corresponding software.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and the functions performed by the processing unit and the transceiver unit may correspond to the steps performed by the terminal device according to the fifth aspect.

In one possible design, the apparatus includes a processor, and may further include a transceiver, and the transceiver is configured to transmit and receive signals, and the processor executes the program instructions to implement the method performed by the terminal device in any possible design or implementation manner of the fifth aspect.

In one possible approach, the memory stores the necessary computer program instructions and/or data to implement the functionality of the terminal device referred to in the fifth aspect above. The processor may execute the computer program instructions stored in the memory to perform the method performed by the terminal device in any possible design or implementation manner of the fifth aspect.

In a seventh aspect, an embodiment of the present application provides a first communication method, including: the terminal equipment receives at least one filtering parameter from the access network equipment; the at least one filtering parameter is used for indicating the capability of the terminal equipment to report the at least one filtering parameter; the terminal equipment sends the capability of the terminal equipment to the access network equipment according to the at least one filtering parameter; the terminal equipment receives the capability identification from the access network equipment; the terminal device associates the capability sent to the access network device according to the at least one filtering parameter and the capability reported by the first capability query message with the capability identifier, wherein the first capability query message carries the filtering parameter same as the filtering parameter. Or, the terminal device associates the capability sent to the access network device within a preset time period with the capability identifier.

In a possible implementation manner, the terminal device associates the capability sent to the access network device within a preset time period with the capability identifier. The length of the preset time period may be a fixed value, or a value configured by the access network device, which is not limited in this embodiment of the present application. The end time of the preset time period may be a time when the capability identifier is received, or a time when the capability is reported to the access network device for the last time.

In an eighth aspect, the present application provides an apparatus. The apparatus has a function of implementing the terminal device according to the seventh aspect, for example, the apparatus includes a module, a unit, or means (means) corresponding to the terminal device executing the step according to the seventh aspect, and the function, the unit, or the means (means) may be implemented by software, or implemented by hardware executing corresponding software.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and functions performed by the processing unit and the transceiver unit may correspond to steps performed by the terminal device according to the seventh aspect.

In one possible design, the apparatus includes a processor, and may further include a transceiver, where the transceiver is configured to transmit and receive signals, and the processor executes the program instructions to implement the method performed by the terminal device in any possible design or implementation manner of the seventh aspect.

In a possible manner, the memory stores the necessary computer program instructions and/or data to implement the functionality of the terminal device according to the seventh aspect. The processor may execute the computer program instructions stored in the memory to perform the method performed by the terminal device in any possible design or implementation manner of the seventh aspect.

In a ninth aspect, embodiments of the present application provide a computer-readable storage medium having computer-readable instructions stored thereon, which, when read and executed by a computer, cause the computer to perform the method of any one of the above possible designs.

In a tenth aspect, embodiments of the present application provide a computer program product, which when read and executed by a computer, causes the computer to perform the method of any one of the above possible designs.

In an eleventh aspect, embodiments of the present application provide a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method in any one of the above possible designs.

In a twelfth aspect, embodiments of the present application provide an apparatus comprising a processor for executing a program or instructions to implement a method in any one of the above possible designs or a method in any one of the possible designs provided in the embodiments. The device may be a Field-Programmable Gate Array (FPGA) or an Application-Specific Integrated Circuit (ASIC). Wherein the program or instructions may be stored in a memory that may contain or be separate from the processor.

Optionally, the apparatus further comprises an interface circuit for retrieving the program or instructions (from memory or via other means) and transmitting to the processor.

In a thirteenth aspect, an embodiment of the present application provides a system, including the terminal device, the access network device, and the core network device provided in any of the foregoing aspects.

Drawings

Fig. 1 shows a schematic diagram of a communication system suitable for use in embodiments of the present application;

fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a capability association provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a capability association provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a capability association provided by an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

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

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the drawings attached hereto.

The embodiment of the application can be applied to various mobile communication systems, such as: a New Radio (NR) system, a Long Term Evolution (LTE) system, an advanced long term evolution (LTE-a) system, a Universal Mobile Telecommunications System (UMTS), an evolved Long Term Evolution (LTE) system, an evolved universal mobile telecommunications system (evolved UMTS) terrestrial radio access-new radio dual connectivity (endec) system, a future communication system, and other communication systems, and in particular, is not limited herein.

For the convenience of understanding the embodiments of the present application, a communication system applicable to the embodiments of the present application will be first described in detail by taking the communication system shown in fig. 1 as an example. Fig. 1 shows a schematic diagram of a communication system suitable for use in embodiments of the present application. As shown in fig. 1, the communication system includes a core network device, an access network device, and a terminal device.

The access network device may provide wireless access services to the terminal device. Before the access network device provides the wireless access service for the terminal device, the capability of the terminal device may be acquired first, and then the acquired capability may be forwarded to the core network device. The core network equipment distributes capacity identification for the capacity of the terminal equipment and forwards the capacity identification to the terminal equipment through the access network equipment.

In this embodiment, the core network device may be an Access and Mobility Management (AMF) network element.

The terminal device is a device with a wireless transceiving function or a chip arranged on the device. The device with wireless transceiving function may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a user agent, or a user equipment. In practical applications, the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios. The device with the wireless transceiving function and the chip capable of being arranged in the device are collectively referred to as a terminal device in the present application.

In the embodiment of the present application, the access network device may be a wireless access device in various systems, such as an evolved Node B (eNB), a Radio Network Controller (RNC) or a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (TRP or transmission point, TP), and the like, and may also be an NB or a transmission point (TRP or transmission point, TP) in a 5G (nr) system, one antenna or a group of antennas of the base station (TP) in the 5G (TP) system includes multiple antenna panels, alternatively, it may also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a DU under a centralized-distributed (CU-DU) architecture.

The capability of the terminal device (capability) may also refer to the access capability of the terminal device (access capability). The capabilities of the terminal device include, but are not limited to: a band combination (band combination) capability supported by the terminal device, a baseband processing capability (band processing capability), a supported carrier aggregation band class (ca-bandwidth class), a modulation and coding scheme (modulation and coding scheme), a bandwidth supported by the terminal device, and the like. Of course, the above is only an example, and the capability of the terminal device may include one or more of the above capabilities, which is determined specifically according to an actual situation and is not described herein again.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

At present, because the types of RATs simultaneously supported by the terminal device are continuously increased, the capability supported by the terminal device is also correspondingly continuously increased, which causes the overhead required by the terminal device to be increased when reporting the capability. In order to reduce the overhead, the terminal device may only report the capability identifier, and the access network device may determine the capability of the terminal device associated with the capability identifier. Capability identification can be divided into two categories: the capability identifier distributed by the manufacturer of the terminal equipment and the capability identifier distributed by the core network equipment. When the core network device allocates the capability identifier for the capability of the terminal device, the terminal device may not determine which capabilities of the terminal device the capability identifier is associated with because the terminal device reports the capability of the terminal device for many times before receiving the capability identifier. Therefore, when the core network device allocates the capability identifier for the capability of the terminal device, how the terminal device determines the capability associated with the capability identifier is an urgent problem to be solved. In view of the above, the present application provides a communication method and apparatus to solve the above problems, which will be described in detail below.

Referring to fig. 2, a schematic flow chart of a communication method according to an embodiment of the present application is provided. The method comprises the following steps:

step 201: the access network equipment sends first information of the terminal equipment to the core network equipment.

The first information comprises the capability corresponding to at least one RAT supported by the terminal equipment.

The first information may comprise capabilities that are part or all of at least one of:

the capabilities of the one or more RATs supported by the terminal device are obtained by the access network device through at least two capability query messages sent to the terminal device. Optionally, some or all of the at least two capability query messages may include a filtering parameter. Wherein the filtering parameter is used to indicate a range of capabilities. Further, the filtering parameter includes at least one of bandwidth information, frequency band information, aggregated carrier information, or Public Land Mobile Network (PLMN) information.

The capability corresponding to the one or more RATs supported by the terminal device is locally stored by the access network device, and at this time, the access network device may obtain the capability corresponding to the one or more RATs supported by the terminal device.

In the embodiment of the application, the filtering parameter may be used to filter the capability that the access network device needs to report by the terminal device. For example, the terminal device supports 100 band combinations, and the filtering parameter is used to filter the number of band combinations reported by the capability of the terminal device. For example, the terminal device supports 10 frequency band combinations satisfying the filtering parameters among 100 frequency band combinations, and then the terminal device only reports the 10 frequency band combinations satisfying the filtering parameters. The access network device may set a filtering parameter, for example, the filtering parameter may be set to a maximum bandwidth value expected by the access network device to be reported by the terminal device, or a frequency band set range expected to be reported by the terminal device, or a maximum aggregation carrier number value expected to be reported by the terminal device, and the like. After receiving the filtering parameters, the terminal device may report the corresponding capability information according to the filtering parameters. For example, the filtering parameter is used to filter the frequency band a, the frequency band B, and the frequency band combination reported by the terminal device only includes the frequency band a, or includes the frequency band B and/or the frequency band combination including the frequency band a and the frequency band B.

For example, in step 201, the access network device may also send second information to the core network device, where the second information is used to indicate the at least one RAT supported by the terminal device. It should be noted that the first information and the second information have an association relationship, that is, the capability included in the first information is a capability corresponding to at least one RAT indicated by the second information.

Illustratively, the second information further comprises at least one filtering parameter. The at least one filtering parameter is a filtering parameter used when the terminal equipment reports the capability of the terminal equipment. Further, the filtering parameters used when the terminal device reports the capability of the terminal device are filtering parameters included in a capability query message sent by the access network device.

For example, in conjunction with the foregoing description, the access network device sends at least two capability query messages to the terminal device. Each of the at least two capability query messages includes a filtering parameter. In this case, the at least one filtering parameter included in the second information includes filtering parameters in the at least two capability query messages, that is, the filtering parameters in the at least two capability query messages are part or all of the at least one filtering parameter included in the second information.

Step 202: the core network device receives the first information from the access network device.

Step 203: the core network device allocates a capability identifier for the capability corresponding to at least one RAT supported by the terminal device and included in the first information, and sends the capability identifier to the access network device.

Wherein the capability identifier is used for identifying the capability of the terminal device included in the first information.

Step 204: the access network device sends a first message to the terminal device.

The first message includes a capability identifier and second information associated with the capability identifier.

Step 205: the terminal device receives a first message from the access network device.

Step 206: and the terminal equipment determines the capability associated with the capability identifier in the capability corresponding to the at least one RAT supported by the terminal equipment according to the second information.

The capability corresponding to the at least one RAT supported by the terminal device may refer to all capabilities corresponding to the at least one RAT supported by the terminal device.

By the method, the capability identifier is distributed by the core network equipment, and the core network equipment forwards the distributed capability identifier to the terminal equipment through the access network equipment. The terminal device receives the second information while receiving the capability identifier or after receiving the capability identifier, so that the capability associated with the capability identifier can be determined according to the second information, and the capability associated with the capability identifier can be accurately determined even when the core network device distributes the capability identifier.

The above process is described below by way of specific examples.

Fig. 3 is a schematic diagram illustrating a capability identifier association process provided in the embodiment of the present application.

In the flow shown in fig. 3, at least two capability query messages sent by the access network device are described as message 1, message 2, and message 3, where message 1 is used to query the capability of the NR system matching with filtering parameter 1 in message 1; message 2 is used to query the LTE system capabilities that match the filtering parameter 2 in message 2; message 3 is used to query the capabilities of the EN-DC system that match the filter parameters 3 in message 3.

Step 301 a: the access network equipment sends a message 1 to the terminal equipment, wherein the message 1 comprises a filtering parameter 1.

Step 301 b: and the access network equipment sends a message 2 to the terminal equipment, wherein the message 1 comprises a filtering parameter 2.

Step 301 c: and the access network equipment sends a message 3 to the terminal equipment, wherein the message 1 comprises a filtering parameter 3.

It should be noted that there may be other execution sequences from step 301a to step 301c, and this is not limited in this embodiment of the application.

Step 302 a: and the terminal equipment sends the capability 1 matched with the filtering parameter 1 to the access network equipment according to the message 1.

Step 302 b: and the terminal equipment sends the capability 2 matched with the filtering parameter 2 to the access network equipment according to the message 2.

Step 302 c: and the terminal equipment sends the capability 3 matched with the filtering parameter 3 to the access network equipment according to the message 3.

Step 303: the access network device sends a radio capability (radio capability) message to the core network device, wherein the radio capability message includes first information and second information.

The first information comprises capabilities corresponding to at least one RAT supported by the terminal device. The second information is used for indicating at least one RAT supported by the terminal equipment. The first information includes a capability corresponding to the at least one RAT indicated by the second information. For example, the first information includes capability 1, capability 2, and capability 3, and then at least one RAT of the second indication information includes an LTE system, an NR system, and an EN-DC system.

The access network device may determine the first information according to the capability reported by the terminal device in steps 302a to 302 c. For example, the first information may be a set of capabilities of the terminal device, the access network device having the received capabilities as part of the set.

The access network device may further obtain third information, where the third information includes capabilities corresponding to one or more RATs supported by the terminal device. The access network device may further include, as part of the first information, the capability included in the third information, that is, the capability included in the third information is part or all of the capability of the first information.

The third information may include a capability of the terminal device, which may be locally stored by the access network device. The capability of the terminal device stored locally by the access network device may be the capability reported to the access network device when the terminal device accesses the access network device last time. For example, the first information may further include capabilities other than the capabilities in steps 302a to 302c, for example, the first information may further include a capability of the terminal device, which is locally stored by the access network device, for example, capability 4, where the capability 4 is a capability corresponding to the lte system.

The capability of the terminal device stored locally by the access network device may also be the capability of the terminal device acquired by the access network device from other access network devices. For example, when the terminal device is handed over from access network device a to access network device B, access network device a may send the capabilities of the terminal device to access network device B.

Optionally, the second information further includes at least one filtering parameter. The at least one filtering parameter is a filtering parameter used when the terminal equipment reports the capability of the terminal equipment. For example, when the terminal device uses the filtering parameter 1, the filtering parameter 2, and the filtering parameter 3 respectively and reports the capability 1, the capability 2, and the capability 3, the second information may include the filtering parameter 1, the filtering parameter 2, and the filtering parameter 3.

Step 304: the core network device sends a first message to the access network device.

The first message is a non-access stratum (NAS) message, and the first message includes a capability identifier and second information associated with the capability identifier.

The capability identifier is an identifier allocated to all capabilities included in the first information after the core network device receives the first information. How to allocate the capability identifier specifically for the core network device is not limited in this embodiment of the present application, and details are not described here.

Step 305: and the access network equipment sends the first message to the terminal equipment.

Step 306: and the terminal equipment determines the capability associated with the capability identifier in all the capabilities corresponding to the at least one RAT indicated by the second information according to the second information.

In a possible implementation manner, for a first RAT in the at least one RAT indicated by the second information, where the first RAT is any RAT in the at least one RAT, the terminal device associates, with the capability identifier, a capability corresponding to the first RAT that is last sent to the access network device. Optionally, in this implementation, before the terminal device determines the capability associated with the capability identifier, it determines that the capability corresponding to the first RAT is sent to the access network device.

For example, the first RAT is an LTE system, the network device queries the terminal device for the capability of the LTE system supported by the terminal device at time 1, and at this time, the terminal device sends the first LTE capability to the network device. At a time 2 after the time 1, the network device queries the terminal device for the capability of the LTE system supported by the terminal device again, and at this time, the terminal device sends the second LTE capability to the network device. After the terminal device transmits the second LTE capability, the capability identifier is received, and then the terminal device associates the last transmitted capability, that is, the second LTE capability, with the capability identifier.

It should be noted that "the capability of the first RAT transmitted last time" may also refer to the capability of the first RAT transmitted last time before the terminal device receives the capability identifier, and may also be understood as the capability of the first RAT transmitted last time, or the capability of the first RAT transmitted last time when the capability identifier is received.

In a possible implementation manner, in a case that the second information further includes at least one filtering parameter, for a first RAT, a capability matching the filtering parameter corresponding to the first RAT is associated with the capability identifier, from among capabilities corresponding to the first RAT that are last sent by the terminal device to the access network device.

For example, in combination with the above example, the second information includes the filtering parameters corresponding to the LTE system. At time 2, after the terminal device sends the second LTE capability to the network device, the terminal device receives the capability identifier, and then associates the last sent capability, that is, the second LTE capability, with the capability identifier.

In a possible implementation manner, for a first RAT of the at least one RAT indicated by the second information, the terminal device associates all capabilities corresponding to the first RAT with the capability identifier. Optionally, in this implementation, before the terminal device determines the capability associated with the capability identifier, it is determined that the capability corresponding to the first RAT is not reported to the access network device.

In a possible implementation manner, in a case that the second information further includes at least one filtering parameter, the terminal device associates, with a capability identifier, a capability that is matched with the filtering parameter corresponding to the first RAT among all capabilities corresponding to the first RAT.

Through the above process, the terminal equipment is assigned with the capability identifier and simultaneously indicated with the second information associated with the capability identifier, so that the terminal equipment can determine the capability associated with the capability identifier according to the second information, and the capability associated with the terminal equipment is the same as the capability associated with the capability identifier assigned by the core network equipment.

In the embodiment of the application, the access network device may not send the second information while sending the first information to the core network device. After receiving the capability identifier sent by the core network device, the access network device sends the first information and the second information to the terminal device, which is described in detail below.

Fig. 4 is a schematic diagram illustrating a capability identifier association process provided in the embodiment of the present application.

In the flow shown in fig. 4, at least two capability query messages sent by the access network device are described as message 1, message 2, and message 3, where message 1 is used to query the capability of the NR system matching with filtering parameter 1 in message 1; message 2 is used to query the LTE system capabilities that match the filtering parameter 2 in message 2; message 3 is used to query the capabilities of the EN-DC system that match the filter parameters 3 in message 3.

Step 401 a: the access network equipment sends a message 1 to the terminal equipment, wherein the message 1 comprises a filtering parameter 1.

Step 401 b: and the access network equipment sends a message 2 to the terminal equipment, wherein the message 1 comprises a filtering parameter 2.

Step 401 c: and the access network equipment sends a message 3 to the terminal equipment, wherein the message 1 comprises a filtering parameter 3.

It should be noted that there may be other execution orders from step 401a to step 401c, and this is not limited in this embodiment of the application.

Step 402 a: and the terminal equipment sends the capability 1 matched with the filtering parameter 1 to the access network equipment according to the message 1.

Step 402 b: and the terminal equipment sends the capability 2 matched with the filtering parameter 2 to the access network equipment according to the message 2.

Step 402 c: and the terminal equipment sends the capability 3 matched with the filtering parameter 3 to the access network equipment according to the message 3.

Step 403: the access network equipment sends a wireless capability message to the core network equipment, wherein the wireless capability message comprises first information.

Optionally, the access network device may determine part or all of the first information according to the capability reported by the terminal device in steps 302a to 302c, where the first information determined by the access network device includes the capability reported by the terminal device in steps 302a to 302 c.

Optionally, the access network device obtains third information, where the third information includes capabilities corresponding to one or more RATs supported by the terminal device. The access network device may use the capability included in the third information as part or all of the first information, that is, the capability included in the third information is part or all of the capability of the first information.

Further optionally, the access network device may determine, according to the capabilities reported by the terminal device in steps 402a to 402c and the third information, the capability corresponding to at least one RAT supported by the terminal device and included in the first information. That is, the first information includes a combination of capabilities corresponding to at least one RAT supported by the terminal device.

The third information may include a capability of the terminal device, which may be locally stored by the access network device. The capability of the terminal device stored locally by the access network device may also be the capability of the terminal device acquired by the access network device from other access network devices. For example, when the terminal device is handed over from access network device a to access network device B, access network device a may send the capabilities of the terminal device to access network device B.

Step 404: the core network device sends a first message to the access network device.

The first message includes a capability identification. The capability identifier is an identifier allocated to all capabilities included in the first information after the core network device receives the first information. How to allocate the capability identifier specifically for the core network device is not limited in this embodiment of the present application, and details are not described here.

Step 405: and the access network equipment sends a second message to the terminal equipment.

The second message may be an RRC message. The second message includes the capability identification and second information associated with the capability identification.

Optionally, the second information further includes at least one filtering parameter. The at least one filtering parameter is used when querying the capability corresponding to each RAT in the at least one RAT indicated by the second information. For example, when the access network device queries the capability 1, the capability 2, and the capability 3 through the capability query message, the at least one filtering parameter includes a filtering parameter 1, a filtering parameter 2, and a filtering parameter 3; when the capability 4 acquired locally by the access network equipment exists in the first information, the at least one filtering parameter further comprises a filtering parameter 4 used in inquiring the capability 4.

Step 406: and the terminal equipment determines the capability associated with the capability identifier in all the capabilities corresponding to the at least one RAT indicated by the second information according to the second information.

In a possible implementation manner, for each first RAT in the at least one RAT indicated by the second information, where the first RAT is any RAT in the at least one RAT, the terminal device associates, with the capability identifier, a capability of the first RAT that is last sent to the access network device. Optionally, in this implementation, before determining the capability associated with the capability identifier, the terminal device sends the capability corresponding to the first RAT to the access network device.

For example, the first RAT is LTE, the network device queries the terminal device for the LTE capability supported by the terminal device at time 1, and at this time, the terminal device sends the first LTE capability to the network device. At a time 2 after the time 1, the network device queries the terminal device for the LTE capabilities supported by the terminal device again, and at this time, the terminal device sends the second LTE capabilities to the network device. After the terminal device transmits the second LTE capability, the capability identifier is received, and then the terminal device associates the last transmitted capability, that is, the second LTE capability, with the capability identifier.

In a possible implementation manner, for a first RAT of the at least one RAT indicated by the second information, the terminal device associates all capabilities corresponding to the first RAT with the capability identifier. Optionally, before the terminal device determines the capability associated with the capability identifier, it is determined that the capability corresponding to the first RAT is not reported to the access network device.

In a possible implementation manner, in a case that the second information further includes at least one filtering parameter, when the terminal device determines that the capability corresponding to the first RAT is not reported to the access network device, the capability, which is matched with the filtering parameter corresponding to the first RAT, in all the capabilities corresponding to the first RAT may be associated with the capability identifier.

Through the above process, the access network device indicates the second information associated with the capability identifier to the terminal device while sending the capability identifier to the terminal device, so that the terminal device can determine the capability associated with the capability identifier according to the second information, and the capability associated with the terminal device is the same as the capability associated with the capability identifier allocated by the core network device.

In this embodiment of the application, the access network device may not send the second information to the terminal device, and after receiving the capability identifier, the terminal device may determine, according to a corresponding rule, the capability associated with the capability identifier, which is described in detail below.

Fig. 5 is a schematic diagram illustrating a capability identifier association process provided in the embodiment of the present application.

In the flow shown in fig. 5, at least two capability query messages sent by the access network device are described as message 1, message 2, and message 3, where message 1 is used to query the capability of the NR system matching with filtering parameter 1 in message 1; message 2 is used to query the LTE system capabilities that match the filtering parameter 2 in message 2; message 3 is used to query the capabilities of the EN-DC system that match the filter parameters 3 in message 3.

Step 501 a: the access network equipment sends a message 1 to the terminal equipment, wherein the message 1 comprises a filtering parameter 1.

Step 501 b: and the access network equipment sends a message 2 to the terminal equipment, wherein the message 1 comprises a filtering parameter 2.

Step 501 c: and the access network equipment sends a message 3 to the terminal equipment, wherein the message 1 comprises a filtering parameter 3.

It should be noted that there may be other execution orders from step 501a to step 501c, and this is not limited in this embodiment of the application.

Step 502 a: and the terminal equipment sends the capability 1 matched with the filtering parameter 1 to the access network equipment according to the message 1.

Step 502 b: and the terminal equipment sends the capability 2 matched with the filtering parameter 2 to the access network equipment according to the message 2.

Step 502 c: and the terminal equipment sends the capability 3 matched with the filtering parameter 3 to the access network equipment according to the message 3.

Step 503: the access network equipment sends a wireless capability message to the core network equipment, wherein the wireless capability message comprises first information.

The first information includes capabilities corresponding to at least one RAT supported by the terminal device, and may include, for example, the capabilities reported by the terminal device in steps 502a to 502 c.

Step 504: the core network device sends a first message to the access network device.

The core network device allocates a capability identifier for a capability corresponding to at least one RAT supported by the terminal device included in the first information, and the first message includes the capability identifier. Optionally, the first message is an NAS message, and the core network device sends the NAS message to the terminal through the access network device.

Step 505: and the access network equipment sends a third message to the terminal equipment.

The third message may be an RRC message or an NAS message, and the embodiment of the present application is not limited thereto. The third message includes a capability identification.

It should be noted that, when the first message is an NAS message, the access network device directly passes the first message through to the terminal device, and at this time, the first message and the third message are the same message.

Step 506: and the terminal equipment determines the capability associated with the capability identifier.

And after the terminal equipment determines to receive the third message, determining the association relationship of the capacity associated with the capacity identifier according to the capacity identifier in the third message.

In a possible implementation manner, before the terminal device receives the capability identifier, the terminal device receives at least one capability query message, where each capability query message in the at least one capability query message includes a filtering parameter. At this time, the terminal device may associate the capability matching with the at least one filtering parameter included in the at least one capability query message with the capability identifier. For example, the terminal device may associate the capabilities of filtering parameter 1, filtering parameter 2, and filtering parameter 3 with the capability identification, that is, associate capability 1, capability 2, and capability 3 with the capability identification.

Preferably, the terminal device associates the capability matched with the filtering parameter in the last query message with the capability identifier. Wherein the capabilities matched by the filtering parameters refer to all capabilities reported according to the filtering parameters. For example, if the filtering parameter in the last query message is filtering parameter 3, the terminal device needs to determine which previous capability queries use filtering parameter 3, and associate all reported capabilities queried using filtering parameter 3 to the capability identifier.

Or the terminal equipment associates the capability matched with the filtering parameter in the last query message with the capability identifier. The capabilities matched with the filtering parameters refer to all capabilities supported by the terminal device and correlated with the filtering parameters. For example, if the filtering parameter in the last query message is filtering parameter 3, the terminal device determines that the filtering parameter 3 includes frequency bands corresponding to the RATs, and then associates the capabilities corresponding to the corresponding RATs to the capability identifier according to the frequency bands.

In a possible implementation manner, before the terminal device receives the capability identifier, the terminal device receives at least one capability query message, where each capability query message in the at least one capability query message includes one RAT. At this time, the terminal device may associate the capability reported last time for each RAT with the capability identifier. For example, if the terminal device receives the capability query message 1, the capability query RAT1, the capability query message 2, the capability query RAT2, the capability query message 3, or the capability query RAT1 at the access network device, the terminal device associates the capabilities with the capability identifier according to the last reported capability of each RAT, that is, the capabilities reported when the access network device queries for the second time and the third time.

It should be noted that, if the terminal device determines that a first RAT exists, and the capability of the first RAT is reported many times before the terminal device receives the capability identifier, the terminal device associates the capability of the first RAT reported last time with the capability identifier.

It should be noted that the filtering parameter referred to in the embodiment of the present application may be a single filtering parameter, or may be a filtering parameter set instead, where the filtering parameter set may include a plurality of filtering parameters, for example, related parameters such as a plurality of frequency bands and carriers that need to be filtered. For ease of illustration, the above is referred to collectively as the filter parameters.

For example, when the preset time period is a time period between the time when the access network device sends the message 1 and the time when the terminal device receives the capability identifier, the terminal device may associate the capability 1, the capability 2, and the capability 3 with the capability identifier.

At present, base stations in different areas may use different filtering parameters to obtain the capability of a terminal device, and a filtering parameter corresponding to a capability identifier currently used by the terminal device may be different from a filtering parameter used by the base station, so that the capability corresponding to the terminal device cannot be used on the base station side.

Step 601: and the core network equipment sends a fourth message to the terminal equipment, wherein the fourth message is used for distributing the capability identification to the terminal equipment.

Before that, the core network device receives capability information of the terminal device, where the capability information includes capabilities corresponding to at least one RAT supported by the terminal device. Optionally, the capability information corresponds to first filtering parameter information, and the capability information is generated according to the first filtering parameter. The method comprises the step that the core network equipment receives the capability information of the terminal equipment from the access network equipment. The capability information of the terminal equipment is the capability of the access network equipment for requesting the terminal equipment to report.

The fourth message is a non-access stratum (NAS) message, and specifically may be, but is not limited to, a capability allocation message, a registration accept message, or another NAS message.

Optionally, the core network device further sends, to the terminal device, first indication information associated with the capability identifier, where the first indication information is area information. The area information is tracking area list information, and the tracking acquisition list information includes one or more tracking area (TA tracking area) information. Optionally, the core network device determines the first indication information according to second indication information, where the second indication information is received from the access network device. Specifically, the second indication information is area information, and the area information is used to indicate an effective area of the filtering parameter used by the access network device. The area information may further include a list, where each element in the list includes a Public Land Mobile Network (PLMN) and area information corresponding to the PLMN. And when the core network equipment sends the first indication information to the terminal, determining the first indication information according to the PLMN corresponding to the capability identification associated with the first indication information. For example, the second indication information includes two elements, element 1(PLMN1, area 1), element 2(PLMN2, area 2), the core network assigns a capability identifier to the terminal, and if the capability identifier is assigned to PLMN2, the first indication information is determined to be area 2.

Step 602: and the terminal equipment receives a fourth message sent by the core network equipment, wherein the fourth message contains the terminal equipment capability identification.

The terminal device reports capability information of the terminal device to an access network before, wherein the capability information comprises capabilities corresponding to at least one RAT supported by the terminal device. And the access network equipment sends the capability information of the terminal equipment to core network equipment. Optionally, the capability information corresponds to first filtering parameter information, and the capability information is generated according to the first filtering parameter.

Optionally, the terminal device further receives area information associated with the capability identifier sent by a core network device, where the area information is tracking area list information, and the tracking acquisition list information includes information of one or more tracking areas (TA tracking areas).

It should be noted that, step 601 or 602 may be executed multiple times, and the terminal device may store N capability identifiers and corresponding capability information. Wherein N is a positive integer greater than or equal to 1. But the terminal device has at most one currently used terminal device capability identity. And the last reported capability identifier is the currently used capability identifier of the terminal equipment.

For example, the terminal device may store information as shown in table 1:

TABLE 1

Capability ID1	Capability information 1	Filtration parameter 1
			Capability ID2	Capability information 2	Filter parameters 3
Capability ID3	Capability information 3	Filter parameters 3

If the terminal device receives the area information associated with the capability identifier, the terminal device may store the information as shown in table 2:

TABLE 2

Capability ID1	Capability information 1	Filtration parameter 1	Region information 1
				Capability ID2	Capability information 2	Filter parameters 3	Region information 2
Capability ID3	Capability information 3	Filter parameters 3	Region information 3

Step 603: and the terminal equipment determines whether to send a capacity change process to the core network according to the currently used capacity identification and the second indication information.

Optionally, the second indication information identifies associated area information for the capability. And the terminal equipment judges that the changed tracking area is not in the area information associated with the currently used capability identifier, and then the terminal equipment considers that a capability change process needs to be triggered. Or, the terminal device determines that the changed tracking area is in the area information associated with the currently used capability identifier, and then it is determined that the capability change process is not required to be triggered. Specifically, the capability changing process includes that the terminal device determines, according to the stored capability identifier information, that the first capability identifier related to the current tracking area is stored, and the terminal device indicates to the core network to use the first capability identifier. Or, the terminal device determines that there is no first capability identifier associated with the current tracking area according to the stored capability identifier information, and then the terminal device sends request information for deleting the currently used capability identifier to the core network.

Or, the second indication information is filtering parameter information sent to the terminal device by the core network, and the terminal device receives the first filtering parameter information from the core network after the tracking area changes. And the terminal equipment judges whether the filtering parameter associated with the currently used capability identifier is matched with the first filtering parameter or not, and if so, the terminal equipment considers that the capability change process is not required to be triggered. Or, the terminal device judges that the filtering parameter associated with the currently used capability identifier is not matched with the first filtering parameter, and then the terminal device considers that the capability change process is not required to be triggered. Specifically, the capability changing process includes that the terminal device determines, according to the stored capability identifier information, that a first capability identifier related to the first filtering parameter information is stored, and the terminal device indicates to the core network to use the first capability identifier. Or, the terminal device determines that there is no first capability identifier associated with the first filtering parameter information according to the stored capability identifier information, and then the terminal device sends request information for deleting the currently used capability identifier to the core network.

Wherein whether the filtering parameter associated with the capability identifier matches the first filtering parameter comprises that the filtering parameter associated with the capability identifier and the first filtering parameter have the same function. Or the capability identification associated filtering parameter includes the content of the first filtering parameter.

The terminal device indicates to the core network that the core network can be sent through NAS signaling using the first capability identifier, where the NAS signaling may be a registration message, a routing area update message, or a capability change message.

The method comprises the steps that after a tracking area of a terminal device is changed, first filtering parameter information is received from a core network, a registration request or a routing area updating request is sent to the core network device after the tracking area of the terminal device is changed, and the first filtering parameter information is sent to the terminal device after the core network device receives the registration request or the routing area updating request. Wherein the first filtering parameter information may be carried in a registration accept or routing area update confirm message. Optionally, the core network device determines the first filtering parameter information according to second indication information, where the second indication information is received from the access network device. Specifically, the second indication information is filtering parameter information, and the filtering parameter information is used to indicate a filtering parameter used by the access network device. The filtering parameters may also include a list, where each element in the list includes a PLMN and its corresponding filtering parameters. And the core network equipment determines the first indication information according to the PLMN corresponding to the capability identification. For example, the second indication information includes two elements, element 1(PLMN1, filtering parameter 1) and element 2(PLMN2, filtering parameter 2), and the core network determines the first filtering parameter information according to the PLMN information of the terminal includes that if the PLMN of the terminal is PLMN2, the first filtering parameter is filtering parameter 2.

In this step, the terminal device may send the changed capability identifier to the core network device. Or the terminal device may send a capability identifier deletion indication to the core network device. The corresponding triggers the following different steps 603a or 603 b.

Step 603 a: the core network receives the capability identifier after the terminal equipment is changed, and sends capability information to the access network equipment according to the capability identifier, wherein the capability information comprises the capability identifier and/or the capability corresponding to the capability identifier.

After receiving the changed capability identifier of the terminal equipment, the core network determines that the currently used capability identifier of the terminal equipment changes. And sending the capability identification and/or the corresponding capability information to the access network equipment.

Step 603 b: and the core network receives a capability indication deleting indication sent by the terminal equipment, and deletes the association relation between the terminal equipment and the previously used capability indication according to the deleting indication.

And the core network receives a capability indication deleting indication sent by the terminal equipment, and deletes the association relation between the terminal equipment and the currently used capability indication according to the deleting indication. The core network sends the initial context to the access network device, and when the initial context is established, the core network no longer carries the capability information, or the indication access network device deletes the stored association relationship between the terminal device and the currently used capability identifier.

In the prior art, since base stations in different areas may use capabilities corresponding to different filtering parameters, and filtering parameters corresponding to capability identifiers currently used by terminal equipment may be different from filtering parameters used by the base stations, the capabilities corresponding to the terminal equipment cannot be used on the base station side, and the base station has to request the reporting capability of the terminal equipment again. According to the embodiment of the application, the terminal equipment is assigned with the area information of the capacity identifier through capacity allocation, so that the capacity identifier used by the area where the terminal equipment is located is changed, the matching with the filtering parameter used by the base station is facilitated, and the problem that the capacity used by the terminal equipment is not matched with the filtering parameter of the base station is solved. In the embodiment of the application, the filtering parameters are assigned to the terminal equipment in the updating process of the routing area of the terminal equipment, so that the correspondingly used capacity identification is changed after the area where the terminal equipment can be located is changed, the capacity identification is matched with the filtering parameters used by the base station, and the problem that the capacity used by the terminal equipment is not matched with the filtering parameters of the base station is solved.

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be configured to perform the actions of the access network device in the above method embodiments. The communication device 600 includes but is not limited to: a processing unit 601 and a transceiving unit 602.

A processing unit 601, configured to obtain first information of a terminal device; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

a transceiving unit 602, configured to send first information of the terminal device to a core network device; sending a first message to the terminal device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate the at least one RAT supported by the terminal device.

In a possible implementation manner, the transceiver unit 602 is further configured to:

sending the second information to the core network device;

wherein, the first message is a non-access stratum NAS message, and before the first message is sent to the terminal device, the transceiver unit 602 is further configured to:

receiving the first message from the core network device.

In a possible implementation manner, the at least one RAT includes multiple RATs, and the transceiver unit 602 is further configured to:

sending at least two capability query messages to the terminal equipment; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment;

receiving at least two capability reporting messages from the terminal equipment; the at least two capability reporting messages include capabilities corresponding to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

In a possible implementation manner, the second information further includes at least one filtering parameter, where the at least one filtering parameter corresponds to the at least one RAT supported by the terminal device, and each of the at least two capability query messages includes the filtering parameter;

the filtering parameters included in the at least two capability query messages are part or all of at least one filtering parameter included in the second information.

and acquiring third information, wherein the third information comprises capabilities corresponding to one or more RATs in at least one RAT supported by the terminal equipment, and the capabilities included in the third information are part or all of the capabilities in the first information.

In addition, the communication apparatus shown in fig. 6 is further adapted to perform the functions of the access network device side in the embodiment corresponding to the steps 601 and 603 (including 603a-603 b).

The processing module 601 is configured to implement the determining function of the access network device side corresponding to the foregoing embodiment, and the transceiver module 602 is configured to implement the receiving and/or sending function of the access network device side corresponding to the foregoing embodiment.

Optionally, the processing unit 601 is configured to determine one or more of capability information, area information, filtering parameters, and the like of the terminal device. Further, the determined information may be sent to a core network device or a terminal device.

Optionally, the transceiver 602 is configured to send one or more of capability information, area information, filtering parameter information, and the like of the terminal device to the core network device.

Optionally, the transceiver 602 is configured to receive corresponding information from a core network device or a terminal device.

When the communication device is used to execute the functions of the access network device in the embodiment corresponding to steps 601-603 (including steps 603a-603b), specific executed functions or steps may refer to the description of the above embodiment, including but not limited to the functions set forth above.

Fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 7 may be

One hardware circuit implementation of the communication device shown in fig. 6. The communication device may be adapted to the above flowchart to perform the functions of the access network equipment in the above method embodiments. For ease of illustration, fig. 7 shows only the main components of the communication device. Optionally, the communication device may be a network-side device, or may be a device in a network-side device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices. Optionally, taking the communication apparatus as a network side device as an example, as shown in fig. 7, the communication apparatus 700 includes a processor 701, a memory 702, a transceiver 703, an antenna 704, and the like.

The functions of the communication apparatus 700 shown in fig. 7 may specifically refer to the description of the communication apparatus in the flow shown in fig. 6, and are not described again here.

Fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus may be configured to perform the actions of the terminal device in the foregoing method embodiments, where the communication apparatus 800 includes: a processing unit 801 and a transceiving unit 802.

A transceiving unit 802, configured to receive first information from an access network device; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

a processing unit 801, configured to allocate a capability identifier for a capability corresponding to at least one RAT supported by a terminal device included in the first information;

the transceiver 802 is configured to send the capability identifier to the access network device; the capability identifier is used for identifying the capability corresponding to at least one RAT supported by the terminal equipment and included in the first information.

In a possible implementation manner, the transceiver unit 802 is further configured to:

receiving second information from the access network device; the second information is used for indicating the at least one RAT supported by the terminal equipment;

and sending a first message to the access network equipment, wherein the first message comprises the capability identification and the second information.

The communication apparatus shown in fig. 8 may be used to execute the functions of the core network device in the embodiment corresponding to the steps 601-603 (including the steps 603a-603 b).

The processing module 801 is configured to implement the determining function of the core network device side corresponding to the foregoing embodiment, and the transceiver module is configured to implement the receiving and/or sending function of the core network device side corresponding to the foregoing embodiment.

Optionally, the processing module 801 is configured to determine one or more of the capability identifier, the first indication information, the area information, and the like, and send the capability identifier, the first indication information, the area information, and the like to the terminal device or the access network device through the transceiver unit.

Optionally, the transceiver unit 802 is configured to send a fourth message to the terminal device, where the fourth message is used to allocate a capability identifier to the terminal device.

Optionally, the transceiver unit 802 is further configured to receive capability information of the terminal device, where the capability information includes a capability corresponding to at least one RAT supported by the terminal device.

Optionally, the transceiver unit 802 further sends first indication information associated with the capability identifier to the terminal device, where the first indication information is area information.

Optionally, the transceiver 802 is configured to receive capability change information, a registration request, or a routing area update request.

When the communication device is used to execute the functions of the core network device in the embodiments corresponding to steps 601-603 (including steps 603a-603b), specific execution functions or steps may refer to the description of the above embodiments, including but not limited to the functions set forth above.

Fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 9 may be a hardware circuit implementation of the communication device shown in fig. 8. The communication apparatus may be adapted to the above flowchart, and perform the function of the core network device in the above method embodiment. For convenience of explanation, fig. 9 shows only the main components of the communication apparatus. As shown in fig. 9, the communication apparatus 900 includes a processor 901 and a transceiver 902.

The functions of the communication apparatus 900 shown in fig. 9 may specifically refer to the description of the communication apparatus in the flow shown in fig. 7, and are not described again here.

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus may be configured to perform the actions of the terminal device in the foregoing method embodiments, where the communication apparatus 1000 includes: a processing unit 1001 and a transceiving unit 1002.

A transceiving unit 1002, configured to receive a first message from an access network device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate at least one RAT supported by the terminal device;

a processing unit 1001, configured to determine, according to the second information, a capability associated with the capability identifier in capabilities corresponding to the at least one RAT supported by the terminal device.

In a possible implementation manner, the transceiver 1002 is further configured to:

receiving at least two capability query messages from the access network device; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment;

sending at least two capability reporting messages to the access network equipment; the at least two capability reporting messages correspond to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

In a possible implementation manner, the processing unit 1001 is specifically configured to:

determining that a capability corresponding to a first RAT last sent to the access network device is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

In a possible implementation manner, the second information further includes at least one filtering parameter;

the processing unit 1001 is specifically configured to:

and determining that, of the capabilities corresponding to the first RAT sent to the access network device for the last time, the capability matched with the filtering parameters corresponding to the first RAT is associated with the capability identifier.

determining that a capability corresponding to a first RAT is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

the processing unit 1001 is specifically configured to:

determining that a capability matching a filtering parameter corresponding to a first RAT is associated with the capability identification; the first RAT is any one of the at least one RAT.

The communication apparatus shown in fig. 10 can be used to implement the functions of the terminal device in the embodiment corresponding to the steps 601-603 (including the steps 603a-603 b).

The processing unit 1001 is configured to implement a determining function of the terminal device side corresponding to the foregoing embodiment, and the transceiver 1002 is configured to implement a receiving and/or transmitting function of the terminal device side corresponding to the foregoing embodiment.

Optionally, the processing unit 1001 is configured to determine one or more of a reporting capability, a capability identifier, area information, and the like. Further, the determined information may be determined according to information from an access network device or a core network device.

Optionally, the transceiver 1002 is configured to receive a fourth message from the core network device, where the fourth message is used to allocate a capability identifier to the terminal device.

Optionally, the transceiver 1002 is configured to send capability information of the terminal device, where the capability information includes a capability corresponding to at least one RAT supported by the terminal device.

Optionally, the transceiver 1002 is configured to receive first indication information associated with the capability identifier, where the first indication information is area information.

When the communication device is used to execute the functions of the terminal device in the embodiment corresponding to steps 601-603 (including steps 603a-603b), specific executed functions or steps may refer to the description of the above embodiment, including but not limited to the functions set forth above.

Fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 11 may be a hardware circuit implementation of the communication device shown in fig. 10. The communication device can be applied to the above flowchart to execute the functions of the terminal device in the above method embodiment. For ease of illustration, fig. 10 shows only the main components of the communication device. Optionally, the communication device may be a terminal-side device, or may be a device in the terminal-side device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices. Alternatively, taking the communication apparatus as a terminal-side device as an example, as shown in fig. 11, the communication apparatus 1100 includes a processor 1101, a memory 1102, a transceiver 1103, an antenna 1104, and an input-output apparatus 1105. The processor 1101 is mainly configured to process the communication protocol and the communication data, control the whole wireless communication apparatus, execute a software program, process data of the software program, for example, support the wireless communication apparatus to perform the actions described in the above method embodiments. The memory 1102 is primarily used to store software programs and data. The transceiver 1103 is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna 1104 is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. The input/output device 1105, such as a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by a user and outputting data to the user.

The functions of the communication apparatus 1100 shown in fig. 11 may specifically refer to the description of the communication apparatus in the flow shown in fig. 10, and are not described again here.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

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 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.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of communication, comprising:

the access network equipment sends first information of the terminal equipment to the core network equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

the access network device receives a first message from the core network device and sends the first message to the terminal device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate the at least one RAT supported by the terminal device.

2. The method of claim 1, further comprising:

the access network equipment sends the second information to the core network equipment;

wherein the first message is a non-access stratum (NAS) message.

3. The method of claim 1 or 2, wherein the second information further comprises at least one filtering parameter corresponding to the at least one RAT supported by the terminal device.

4. The method of claim 1 or 2, wherein the at least one RAT comprises a plurality of RATs, the method further comprising:

the access network equipment sends at least two capability query messages to the terminal equipment; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment;

the access network equipment receives at least two capability reporting messages from the terminal equipment; the at least two capability reporting messages include capabilities corresponding to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

5. The method of claim 4, wherein each of the at least two capability query messages comprises a filter parameter;

6. The method of claim 3, further comprising:

the access network device obtains third information, where the third information includes capabilities corresponding to one or more RATs in at least one RAT supported by the terminal device, and the capabilities included in the third information are partial or all capabilities in the first information.

7. The method of claim 6, wherein the filtering parameters corresponding to the one or more RATs are some or all of at least one filtering parameter included in the second information.

8. A method of communication, comprising:

the core network equipment receives first information from the access network equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

the core network device allocates a capability identifier for a capability corresponding to at least one RAT supported by the terminal device and included in the first information, and sends a first message to the access network device, where the first message includes the capability identifier and second information; the capability identifier is used for identifying the capability corresponding to at least one RAT supported by the terminal equipment and included in the first information; the second information is used for indicating the at least one RAT supported by the terminal device.

9. The method of claim 8, further comprising:

the core network device receives the second information from the access network device.

10. The method of claim 9, wherein the second information further comprises filtering parameters corresponding to each RAT in the at least one RAT.

11. A method of communication, comprising:

the method comprises the steps that a terminal device receives a first message from an access network device, wherein the first message comprises a capability identifier and second information associated with the capability identifier, and the second information is used for indicating at least one RAT supported by the terminal device; the capability identification is distributed by the core network equipment;

and the terminal equipment determines the capability associated with the capability identifier in the capabilities corresponding to the at least one RAT supported by the terminal equipment according to the second information.

12. The method of claim 11, further comprising:

the terminal equipment receives at least two capability inquiry messages from the access network equipment; the at least two capability query messages are used for querying the capabilities corresponding to one or more RATs supported by the terminal equipment;

the terminal equipment sends at least two capacity reporting messages to the access network equipment; the at least two capability reporting messages correspond to the at least two capability query messages, and the capabilities included in the at least two capability reporting messages are part or all of the capabilities in the first information.

13. The method of claim 11, wherein the determining, by the terminal device, the capability associated with the capability identifier in the capabilities corresponding to the at least one RAT supported by the terminal device according to the second information comprises:

and the terminal equipment determines that the capability corresponding to the first RAT which is sent to the access network equipment for the last time is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

14. The method of claim 13, wherein the second information further comprises at least one filtering parameter;

the determining, by the terminal device, that the capability of the first RAT last sent to the access network device is associated with the capability identifier includes:

and the terminal equipment determines that the capacity matched with the filtering parameter corresponding to the first RAT is associated with the capacity identification in the capacity corresponding to the first RAT which is sent to the access network equipment for the last time.

15. The method according to claim 11 or 12, wherein the determining, by the terminal device, the capability associated with the capability identifier from the capabilities corresponding to the at least one RAT supported by the terminal device according to the second information comprises:

the terminal device determines that a capability corresponding to a first RAT is associated with the capability identification, wherein the first RAT is any one of the at least one RAT.

16. The method according to claim 11 or 12, wherein the second information further comprises at least one filtering parameter;

the determining, by the terminal device, the capability associated with the capability identifier in the capability corresponding to the at least one RAT supported by the terminal device according to the second information includes:

the terminal equipment determines that the capability matched with the filtering parameter corresponding to the first RAT is associated with the capability identifier; the first RAT is any one of the at least one RAT.

17. A communications apparatus, comprising:

the processing unit is used for acquiring first information of the terminal equipment; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

a receiving and sending unit, configured to send first information of the terminal device to a core network device; receiving a first message from the core network device, and sending the first message to the terminal device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate the at least one RAT supported by the terminal device.

18. The apparatus of claim 17, wherein the transceiver unit is further configured to:

sending the second information to the core network device;

wherein the first message is a non-access stratum (NAS) message.

19. The apparatus of claim 17 or 18, wherein the at least one RAT comprises a plurality of RATs, and wherein the transceiver unit is further configured to:

20. The apparatus of claim 17, wherein the second information further comprises at least one filtering parameter, wherein the at least one filtering parameter corresponds to the at least one RAT supported by the terminal device, and wherein each of the at least two capability query messages comprises a filtering parameter;

21. The apparatus according to claim 17 or 18, wherein the transceiver unit is further configured to:

22. A communications apparatus, comprising:

a transceiver unit, configured to receive first information from an access network device; the first information comprises the capability corresponding to at least one Radio Access Technology (RAT) supported by the terminal equipment;

a processing unit, configured to allocate a capability identifier for a capability corresponding to at least one RAT supported by a terminal device included in the first information;

the transceiver unit is configured to send a first message to the access network device, where the first message includes the capability identifier and second information; the capability identifier is used for identifying the capability corresponding to at least one RAT supported by the terminal equipment and included in the first information; the second information is used for indicating the at least one RAT supported by the terminal device.

23. The apparatus of claim 22, wherein the transceiver unit is further configured to:

receiving the second information from the access network device.

24. A communications apparatus, comprising:

a transceiver unit, configured to receive a first message from an access network device, where the first message includes a capability identifier and second information associated with the capability identifier, and the second information is used to indicate at least one RAT supported by a terminal device; the capability identification is distributed by the core network equipment;

and a processing unit, configured to determine, according to the second information, a capability associated with the capability identifier in capabilities corresponding to the at least one RAT supported by the terminal device.

25. The apparatus of claim 24, wherein the transceiver unit is further configured to:

26. The apparatus according to claim 24, wherein the processing unit is specifically configured to:

27. The apparatus of claim 26, wherein the second information further comprises at least one filtering parameter;

the processing unit is specifically configured to:

28. The apparatus according to claim 24 or 25, wherein the processing unit is specifically configured to:

29. The apparatus of claim 24 or 25, wherein the second information further comprises at least one filtering parameter;

the processing unit is specifically configured to:

30. A communications apparatus comprising at least one processor coupled with at least one memory:

the at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the method of any of claims 1-16.

31. A readable storage medium, comprising a program or instructions which, when executed, perform the method of any of claims 1 to 16.