WO2020147730A1

WO2020147730A1 - Communication method and apparatus

Info

Publication number: WO2020147730A1
Application number: PCT/CN2020/072089
Authority: WO
Inventors: 李秉肇; 邝奕如; 赵旸
Original assignee: 华为技术有限公司
Priority date: 2019-01-17
Filing date: 2020-01-14
Publication date: 2020-07-23
Also published as: CN111447608A; CN111447608B

Abstract

Embodiments of the present application provide a communication method and apparatus, relating to the field of communications, and capable of solving the problem, which is caused by an improper filtering parameter set by a base station, of failing to correctly or comprehensively obtain the full capability of a UE or a specific capability of the UE. The method comprises: when it is required to obtain the capability information of a terminal device, an access network device can transmit a capability request to the terminal device, wherein the capability request comprises capability reporting indication information, and the capability reporting indication information is used for indicating a capability reporting range; after receiving the capability request, the terminal device determines the capability information according to the capability reporting range, and transmits the capability information to the access network device; after receiving the capability information of the terminal device, the access network device transmits the capability information to a core network device. The embodiments of the present application are applied to a scene where the terminal device performs capability reporting.

Description

Communication method and device

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office, the application number is 201910045274.5, and the application name is "a communication method and device" on January 17, 2019, the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of communications, and in particular to a communication method and device.

Background technique

At present, different user equipment (UE) on the market can support different radio access technology (RAT) capabilities due to different hardware or software versions. In order to better serve the UE, the network needs to know the capabilities of each UE in order to configure a suitable working mode for the UE. The network may request the UE to report capabilities for different RAT types (types). For example, requesting the UE to report related capabilities supporting long term evolution (LTE), supporting new radio (NR) or supporting multi-RAT dual connectivity (MR-DC) related capabilities .

When the core network (core network, CN) does not obtain the UE capability, it does not send the UE capability to the base station. At this time, the base station may request the UE capability. However, the base station usually requests the UE for the capabilities related to the base station. As shown in Fig. 1, the base station can set filtering parameters related to the base station in the capability request. For example, the filtering parameters can be set to bandwidth information supported by the base station. After receiving the capability request, the terminal device can report corresponding capability information according to the filtering parameters. In some scenarios, when the network needs to acquire all the capabilities of the UE or the specific capabilities of the UE (for example, the capability corresponding to the capability identifier of the terminal), the base station may set inappropriate filtering parameters, resulting in the network being unable to correctly or comprehensively learn about the UE. All capabilities or specific capabilities of the UE.

Summary of the invention

The embodiments of the present application provide a communication method and device, which can solve the problem that the base station setting inappropriate filtering parameters causes the inability to correctly or comprehensively learn all the capabilities of the UE or the specific capabilities of the UE.

In the first aspect, an embodiment of the present application provides a communication method, which is applied to an access network device or a chip of an access network device. The method includes: the access network device sends a capability request to the terminal device, and the capability request includes the capability Report instruction information, the capability report instruction information is used to indicate the capability report range; the access network device receives capability information from the terminal device, and the capability information corresponds to the capability report range; the access network device sends capability information to the core network device.

Based on the method provided in the embodiments of this application, when the network needs to obtain all the capabilities of the UE or the specific capabilities of the UE (for example, the capability corresponding to the capability identifier of the terminal), the access network device does not send filtering parameters to the terminal device according to its own capabilities Instead, the capability report indication information can be used to accurately indicate the capability report range of the terminal device. The terminal device determines capability information according to the capability report range and sends the capability information to the access network device. Therefore, the method provided in the embodiment of the present application can solve the problem that the base station setting inappropriate filtering parameters causes the inability to correctly or comprehensively learn all the capabilities of the UE or the specific capabilities of the UE.

In a possible implementation manner, the capability report indication information is used to indicate to report at least one of a complete set of capabilities, a feature set, capability information corresponding to a capability identifier, or capability information corresponding to a filtering parameter.

In a possible design, the capability report indication information includes at least one of capability complete set indication information, feature set indication information, capability identification indication information, or filtering parameters. Wherein, the capability complete set indication information is used to instruct the terminal device to report all capability information of the terminal device. The feature set indication information may be used to instruct the terminal device to carry the feature set information that it supports in the LTE system or the NR system or the MR-DC system when reporting the capability. The capability identifier indication information instructs the terminal device to report the first capability set information corresponding to the first capability identifier, and the first capability set information may be pre-configured on the terminal device. The filtering parameter instructs the terminal device to report the band combination and feature set information that it supports. In this way, the access network device can accurately indicate the capability report range of the terminal device through the capability report indication information, which avoids the problem that the base station sets inappropriate filtering parameters and cannot correctly or comprehensively learn the full capabilities of the UE or the specific capabilities of the UE.

In a possible implementation manner, the filtering parameter includes at least one of bandwidth information, frequency band information, or public land mobile network (PLMN) information. On the one hand, bandwidth information, frequency band information, or PLMN information may be indication information or identification, respectively. Bandwidth information is used to instruct the terminal equipment to report all the bandwidth information it supports, frequency band information is used to instruct the terminal equipment to report frequency band information on each bandwidth it supports, and PLMN information is used to instruct the terminal equipment to report the frequency band used by the PLMN it supports Related capabilities. On the other hand, filtering parameters can carry specific bandwidth information, frequency band information, or PLMN information. These bandwidth information, frequency band information, or PLMN information are not completely determined based on the capabilities of the base station. The terminal equipment is based on these bandwidth information, frequency band information or PLMN information. Determine the scope of the reporting capability set. In this way, the access network device can accurately indicate the capability report range of the terminal device through the filtering parameters, which avoids the problem that the base station sets inappropriate filtering parameters and cannot correctly or comprehensively learn the full capabilities of the UE or the specific capabilities of the UE.

In a possible implementation manner, the method further includes: the access network device receives first indication information sent by the core network device, where the first indication information is used to determine the capability report indication information.

In a possible implementation manner, the first indication information is used to indicate at least one of a full set of capabilities request, feature set setting reference information, capability identification-based capability reporting request, or filtering parameter setting reference information. Optionally, the first indication information includes at least one of a capability complete set request instruction, feature set setting reference information, capability identification, or filtering parameter setting reference information.

In a possible implementation manner, there is a corresponding relationship between the first indication information and the capability report indication information. In this way, the access network device can determine the capability report instruction information according to the first instruction information, and accurately indicate the capability report range of the terminal device through the capability report instruction information, which prevents the base station from setting improper filtering parameters and causing the incorrect or comprehensive information. The full capabilities of the UE or the specific capabilities of the UE.

In a possible implementation manner, the corresponding relationship between the first indication information and the capability reporting indication information satisfies at least one of the following: the first indication information indicates the first filtering parameter setting reference information, and the capability reporting indication information indicates that the first Capability information corresponding to the filter parameter, the first filter parameter corresponds to the first filter parameter setting reference information; the first indication information indicates the first feature set setting reference information, the capability report indication information indicates to report the first feature set, and the first feature set corresponds to Set reference information in the first feature set information; the first indication information indicates a capability report request based on the first capability identifier, and the capability report instruction information indicates to report the capability information corresponding to the first capability identifier, the second feature set or the second filter parameter correspondence At least one of the capability information, the second feature set or the second filter parameter corresponds to the first capability identifier; the first indication information indicates the capability complete set request, and the capability report instruction information indicates the capability report, the third feature set, or the third filter At least one of the capability information corresponding to the parameter, the third characteristic set or the third filtering parameter corresponds to the capability full set request.

In a possible implementation manner, the capability report indication information includes capability identification indication information, and the capability identification indication information includes a first capability identification, or the capability identification indication information includes a first capability set corresponding to the first capability identification for indicating to report Information indicating information; the capability information received by the access network device from the terminal device includes: the capability information received by the access network device from the terminal device, and the capability information includes the first capability set information corresponding to the first capability identifier.

Further optionally, the capability identifier indication information is a first capability identifier or the capability identifier indication information is indication information used to instruct to report the first capability set information corresponding to the first capability identifier.

In this application, when the network needs to acquire all the capabilities of the UE or the specific capabilities of the UE (for example, the capability corresponding to the capability identifier of the terminal), the core network device may set the first indication information to indicate the capability complete set request and feature set setting reference At least one of information, a capability report request based on a capability identifier, or filter parameter setting reference information; the access network device may determine capability report instruction information according to the first instruction information, and the capability report instruction information is used to indicate the complete set of reported capabilities and feature set , At least one of the capability information corresponding to the capability identifier or the capability information corresponding to the filtering parameter. In this way, the capability report indication information can be used to accurately indicate the capability report range of the terminal device, which avoids the problem that the base station sets inappropriate filtering parameters and cannot correctly or comprehensively learn the full capabilities of the UE or the specific capabilities of the UE.

In a second aspect, embodiments of the present application provide a method for reporting terminal capabilities, which is applied to a terminal device or a chip of a terminal device. The method includes: the terminal device receives a capability request from an access network device, and the capability request includes a capability report Instruction information: The terminal device sends the capability information to the access network device according to the capability report instruction information.

In a possible implementation manner, the filtering parameter includes at least one of bandwidth information, frequency band information, or PLMN information.

In a possible implementation manner, the capability report indication information indicates to report capability information corresponding to the first capability identifier, and the capability information includes the first capability set information corresponding to the first capability identifier; the capability report indication information indicates to report the first filter parameter corresponding The capability information includes the second capability set information corresponding to the first filter parameter; the capability report indication information indicates the feature set to be reported, and the capability information includes the feature set information supported by the terminal device; and/or the capability report instruction information indicates the capability to report In the complete set, capability information includes all capability information supported by the terminal device.

In a possible implementation manner, the method further includes: the terminal device sends a first capability identifier to the access network device or the core network device, the first capability identifier corresponds to first capability set information, and the first capability set information is pre-configured of.

In a possible implementation manner, the capability report indication information includes capability identification indication information, and the capability identification indication information includes a first capability identification, or the capability identification indication information includes a first capability set corresponding to the first capability identification for indicating to report Information indicating information; the terminal device according to the capability reporting instruction information, sending capability information to the access network device includes: the terminal device sends capability information to the access network device according to the capability identifier instruction information, the capability information includes the first capability identifier corresponding to the first capability identifier A capability collection information.

In a third aspect, an embodiment of the present application provides a communication method, which is applied to a core network device or a chip of a core network device, the method includes: the core network device sends first indication information to the access network device, and the first indication The information is used to indicate the range of capability reporting; the core network device receives the capability information of the terminal device from the access network device, and the capability information corresponds to the range of capability reporting.

In a possible implementation manner, the first indication information is used to indicate at least one of a full set of capabilities request, feature set setting reference information, capability identification-based capability reporting request, or filtering parameter setting reference information.

In a possible implementation, the method further includes: the core network device receives the first capability identifier from the terminal device, the first capability identifier corresponds to the first capability set information, and the first capability set information is pre-configured.

In a possible implementation manner, the method further includes: the core network device sends a second capability identifier to the terminal device, where the second capability identifier corresponds to the capability information of the terminal device.

In a fourth aspect, an embodiment of the present application provides a communication device, which is characterized by comprising: a sending unit, configured to send a capability request to a terminal device, the capability request includes capability report instruction information, and the capability report instruction information is used to indicate the capability report scope The receiving unit is used to receive capability information from the terminal device, and the capability information corresponds to the range of capability reporting; the sending unit is also used to send the capability information to the core network device.

In a possible implementation manner, the receiving unit is further configured to receive the first indication information sent by the core network device, where the first indication information is used to determine the capability report indication information.

In a possible implementation manner, there is a corresponding relationship between the first indication information and the capability report indication information.

In a possible implementation manner, the corresponding relationship between the first indication information and the capability reporting indication information satisfies at least one of the following: the first indication information indicates the first filtering parameter setting reference information, and the capability reporting indication information indicates that the first Capability information corresponding to the filter parameter, the first filter parameter corresponds to the first filter parameter setting reference information; the first indication information indicates the first feature set setting reference information, the capability report indication information indicates to report the first feature set, and the first feature set corresponds to Set reference information in the first feature set information; the first indication information indicates a capability report request based on the first capability identifier, and the capability report instruction information indicates to report the capability information corresponding to the first capability identifier, the second feature set or the second filter parameter correspondence At least one of the capability information, the second feature set or the second filter parameter corresponds to the first capability identifier; the first indication information indicates the capability complete set request, and the capability report instruction information indicates the capability report, the third feature set, or the third filter At least one of the capability information corresponding to the parameter, the third feature set or the third filter parameter corresponds to the capability full set request.

In a possible implementation manner, the capability report indication information includes capability identification indication information, and the capability identification indication information includes a first capability identification, or the capability identification indication information includes a first capability set corresponding to the first capability identification for indicating to report Information indicating information; the receiving unit is configured to receive capability information from the terminal device, the capability information including the first capability set information corresponding to the first capability identifier.

In a fifth aspect, an embodiment of the present application provides a communication device, which is characterized in that it includes: a receiving unit, configured to receive a capability request from an access network device, the capability request including capability report indication information; and a sending unit, configured according to the capability Report instruction information and send capability information to the access network device.

In a possible implementation manner, the capability report indication information indicates to report capability information corresponding to the first capability identifier, and the capability information includes the first capability set information corresponding to the first capability identifier; the capability report indication information indicates to report the corresponding first filter parameter The capability information includes the second capability set information corresponding to the first filter parameter; the capability report indication information indicates the feature set to be reported, and the capability information includes the feature set information supported by the terminal device; and/or the capability report instruction information indicates the capability to report In the complete set, capability information includes all capability information supported by the terminal device.

In a possible implementation, the sending unit is further configured to send the first capability identifier to the access network device or the core network device, the first capability identifier corresponds to the first capability set information, and the first capability set information is pre-configured .

In a possible implementation manner, the capability report indication information includes capability identification indication information, and the capability identification indication information includes a first capability identification, or the capability identification indication information includes a first capability set corresponding to the first capability identification for indicating to report Indication information of the information; a sending unit, configured to send capability information to the access network device according to the capability identifier indication information, the capability information including the first capability set information corresponding to the first capability identifier.

In a sixth aspect, an embodiment of the present application provides a communication device, which is characterized by comprising: a sending unit, configured to send first indication information to an access network device, the first indication information being used to determine the indication capability reporting range; a receiving unit , Used to receive the capability information of the terminal device from the access network device, and the capability information corresponds to the capability report range.

In a possible implementation manner, the receiving unit is further configured to receive the first capability identifier from the terminal device, the first capability identifier corresponds to the first capability set information, and the first capability set information is pre-configured.

In a possible implementation manner, the sending unit is further configured to send a second capability identifier to the terminal device, where the second capability identifier corresponds to capability information of the terminal device.

In a seventh aspect, an apparatus is provided, including: a processor and a memory; the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so that the apparatus executes any of the above-mentioned first aspects. The communication method of one item, the capability reporting method of any one of the second aspect or the communication method of any one of the third aspect.

In an eighth aspect, a communication device is provided, including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the communication method according to any one of the above-mentioned first aspects according to the instruction, and the second aspect Any one of the capability reporting methods or the communication method of any one of the third aspect.

In a ninth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the communication method of any one of the above-mentioned first aspects. The capability reporting method of any of the aspects or the communication method of any of the third aspects.

In a tenth aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the communication method of any one of the above-mentioned first aspects, the capability reporting method of any one of the second aspects or The communication method of any one of the third aspect.

In an eleventh aspect, a circuit system is provided. The circuit system includes a processing circuit configured to execute the communication method of any one of the above-mentioned first aspects, the capability reporting method of any one of the second aspects or the third The communication method of any one of the aspects.

In a twelfth aspect, a chip is provided, the chip includes a processor, the processor is coupled with a memory, the memory stores program instructions, and the above is implemented when the program instructions stored in the memory are executed by the processor The communication method of any one of the first aspect, the capability reporting method of any one of the second aspect or the communication method of any one of the third aspect.

In a thirteenth aspect, a communication system is provided, and the communication system includes the communication device in any one of the foregoing fourth aspect, fifth aspect, and sixth aspect.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of signal interaction of a capability request method in the prior art;

FIG. 2 is a schematic diagram of signal interaction in a method for acquiring capability information according to capability identifiers;

3 is a schematic diagram of a system architecture suitable for a communication method provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of a terminal device provided by an embodiment of this application;

FIG. 5 is a schematic structural diagram of an access network device or a core network device provided by an embodiment of this application;

FIG. 6 is a schematic diagram of signal interaction suitable for a communication method according to an embodiment of the application;

FIG. 7 is another schematic diagram of signal interaction suitable for a communication method according to an embodiment of this application;

FIG. 8 is a schematic structural diagram of another access network device provided by an embodiment of this application;

FIG. 9 is a schematic structural diagram of another terminal device provided by an embodiment of this application;

FIG. 10 is a schematic structural diagram of yet another core network device provided by an embodiment of this application.

detailed description

In order to make the description of the following embodiments clear and concise, first a brief introduction of related concepts or technologies is given:

The UE capability structure in the fifth generation (5G) NR: The UE capability structure of the 5G NR may include bandwidth information (band combination) and feature set information supported by the UE in the NR. The 5G NR UE capability structure may also include other radio frequency capabilities, physical capabilities, and measurement capabilities.

UE capability structure in LTE: The UE capability structure of LTE may include band combinations and feature set information supported by the UE in LTE. The UE capability structure of LTE may also include other radio frequency capabilities, physical capabilities, and measurement capabilities.

UE capability structure in EN-DC: The UE capability structure of EN-DC includes three capabilities: LTE, MR-DC and NR. The network needs to obtain the band combination in the MR-DC capability, the feature set information in the LTE capability, and the feature set information in the NR capability to fully obtain the EN-DC capability. Currently, when the base station requests the UE for feature set information in the LTE capabilities, it needs to carry the NR and LTE bands in the filtering parameters. However, because the base station may set inappropriate filtering parameters, the network cannot correctly or comprehensively learn the UE capabilities of EN-DC.

Capability ID (capability identity, capability ID): Due to the large amount of UE capability structure reported, the overhead of capability reporting is too large. Therefore, a reporting method based on capability identification is proposed. A capability identifier can be used to identify a specific set of capabilities. For example, a capability identifier may be related to the capability of a specific type of UE. In this way, UEs of the same type can report capability information only once, without each UE reporting capability information separately.

Optionally, the capability identifier may also be referred to as capability set identifier, capability combination identifier, capability model identifier, etc. As long as the concept used to identify a group of specific capability sets conforms to the definition of capability identifier in this document, this application is not limited.

As shown in Figure 2, the UE can report the capability identifier of the UE to the core network. If the core network has saved the capability corresponding to the capability identifier, the core network no longer requires the UE to report the capability. If the core network does not save the capability corresponding to the capability identifier, it needs to request the capability from the UE, record the capability and the capability identifier, and no longer request it later. However, since the base station may set inappropriate filtering parameters, the acquired UE capability may not match the capability identifier.

The embodiments of the present application provide a communication method and a terminal capability reporting method, which are applied to scenarios where terminal devices in communication systems such as NR, LTE, or MR-DC perform capability reporting. Among them, MR-DC can include NE-DC, EN-DC, NGEN-DC, and so on. Among them, DC stands for dual connectivity, and E stands for universal mobile telecommunications system (UMTS) terrestrial radio access (evolved-UMTS, terrestrial radio access, E-UTRA), namely the fourth generation (4G) Radio access network, also known as long term evolution (LTE) radio access network; N stands for NR, which is 5G NR; NG stands for next generation core, which is 5G core network. EN-DC refers to the dual connection of 4G wireless access network and 5G NR. That is to say, in the EN-DC scenario, the UE is connected to an LTE base station (e.g., eNB) and an NR base station (e.g., gNB) at the same time, and services are provided by these two base stations at the same time. Among them, the LTE base station is the master node (master node, MN). NE-DC refers to the dual connection of 5G NR and 4G wireless access networks, and the NR base station is the master node. NGEN-DC refers to the dual connection between the 4G radio access network and 5G NR under the 5G core network, and the 4G base station (LTE base station, such as eNB) is the master node.

As shown in FIG. 3, a schematic diagram of a system architecture suitable for a communication method and a capability reporting method provided by an embodiment of this application, including an access network device, a core network device, and a terminal device. The access network device can send a capability request to the terminal device. The capability request includes capability report instruction information. The capability report instruction information is used to indicate the capability report scope; after receiving the capability request, the terminal device reports the capability information to the access network device. Corresponding to the capability report range; the access network device sends capability information to the core network device, and the core network device can save the capability information.

Among them, the terminal device may also be called a terminal (terminal), UE, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), and so on. The terminal equipment can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments of the present application do not limit the specific technology and the specific device form adopted by the terminal device.

RAN equipment corresponds to different equipment in different systems. For example, in the second generation (2G) communication system, the RAN device can correspond to the base station and the base station controller; in the third generation (3G) communication system, the RAN device can correspond to the base station and the radio network controller (radio network controller). Controller, RNC); in 4G, RAN equipment can correspond to eNB; in 5G, RAN equipment can correspond to gNB, centralized unit (CU) or distributed unit (DU), etc.

CN equipment corresponds to different equipment in different systems. For example, in 3G, it can correspond to the service support node (serving GPRS support node, SGSN) of general packet radio service (general packet radio service, GPRS) and/or the gateway support node (gateway GPRS Support Node, GGSN) of GPRS; in 4G It can correspond to mobility management entity (mobility management entity, MME) and/or serving gateway (serving gateway, S-GW); there is no official name in 5G, for example, it can correspond to NG-Core.

Optionally, the terminal device, core network device, or access network device in the embodiments of this application can be implemented by one device, or can be implemented by multiple devices together, or can be a functional module in one device. This application implements The example does not specifically limit this. It can be understood that the above function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualized function instantiated on a platform (for example, a cloud platform).

For example, the apparatus for implementing the function of the terminal device provided in the embodiment of the present application may be implemented by the apparatus 400 in FIG. 4. FIG. 4 shows a schematic diagram of the hardware structure of an apparatus 400 provided by an embodiment of the application. The apparatus 400 includes at least one processor 401, configured to implement the functions of the terminal device provided in the embodiment of the present application. The device 400 may also include a bus 402 and at least one communication interface 404. The device 400 may also include a memory 403.

In the embodiment of the present application, the processor may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processing (DSP), or a micro processing unit. Device, microcontroller, programmable logic device (PLD) or any combination of them. The processor may also be any other device with a processing function, such as a circuit, a device, or a software module.

The bus 402 can be used to transfer information between the aforementioned components.

The communication interface 404 is used to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. The communication interface 404 may be an interface, a circuit, a transceiver or other devices capable of realizing communication, which is not limited in this application. The communication interface 404 may be coupled with the processor 401. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms, used for information interaction between devices, units, or modules. It should be noted that, in the embodiments of the present application, when the terminal device is used as a receiving end device, the above transceiver can be replaced with a receiver, and when the terminal device is used as a transmitting end device, the above transceiver can be replaced by a transmitter. Of course, it is not ruled out that whether the terminal device is used as a receiving end device or as a transmitting end device, the terminal device has both a sending function and a receiving function, that is, it includes the above-mentioned transceiver.

In the embodiments of the present application, the memory may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or storage Other types of dynamic storage devices for information and instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory, CD-ROM, or Other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired commands or data structures Program code and any other medium that can be accessed by the computer, but not limited to this. The memory may exist independently, or may be coupled with the processor, for example, through the bus 402. The memory can also be integrated with the processor.

The memory 403 is used to store program instructions, and the processor 401 can control the execution, so as to implement the communication method provided in the following embodiments of the present application. The processor 401 is configured to call and execute instructions stored in the memory 403, so as to implement the communication method provided in the following embodiments of the present application.

Optionally, the computer execution instructions in the embodiments of the present application may also be called application program codes, which are not specifically limited in the embodiments of the present application.

Optionally, the memory 403 may be included in the processor 401.

In a specific implementation, as an embodiment, the processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.

In a specific implementation, as an embodiment, the apparatus 400 may include multiple processors, such as the processor 401 and the processor 407 in FIG. 4. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

In a specific implementation, as an embodiment, the apparatus 400 may further include an output device 405 and an input device 406. The output device 405 is coupled with the processor 401, and can display information in a variety of ways. For example, the output device 405 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait. The input device 406 is coupled to the processor 401 and can receive user input in a variety of ways. For example, the input device 406 may be a mouse, a keyboard, a touch screen device, or a sensor device.

The above apparatus 400 may be a general-purpose device or a special-purpose device. In a specific implementation, the terminal device 400 may be a desktop computer, a portable computer, a network server, a PDA (personal digital assistant, PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a similar structure in Figure 4 equipment. The embodiment of the present application does not limit the type of the device 400.

For example, the apparatus for implementing the function of the access network device or the core network device provided in the embodiment of the present application may be implemented by the apparatus 500 in FIG. 5. FIG. 5 shows a schematic diagram of the hardware structure of an apparatus 500 provided by an embodiment of the application. The apparatus 500 includes at least one processor 501, configured to implement the functions of the terminal device provided in the embodiment of the present application. The device 500 may also include a bus 502 and at least one communication interface 504. The device 500 may also include a memory 503.

The bus 502 can be used to transfer information between the aforementioned components.

The communication interface 504 is used to communicate with other devices or communication networks, such as Ethernet, RAN, and WLAN. The communication interface 504 may be an interface, a circuit, a transceiver or other devices capable of realizing communication, which is not limited in this application. The communication interface 504 may be coupled with the processor 501. It should be noted that in the embodiments of the present application, when the access network device or the core network device is used as the receiving end device, the above transceiver can be replaced with a receiver. When the access network device or the core network device is used as the transmitting end device , The above transceiver can be replaced with a transmitter. Of course, no matter whether the access network device or the core network device is used as the receiving end device or the transmitting end device, the access network device or the core network device has both the sending function and the receiving function, that is, the above-mentioned transceiver is included.

Among them, the memory 503 is used to store program instructions, and the processor 501 can control the execution, so as to implement the communication method provided in the following embodiments of the present application. For example, the processor 501 is configured to call and execute instructions stored in the memory 503, so as to implement the communication method provided in the following embodiments of the present application.

Optionally, the memory 503 may be included in the processor 501.

In a specific implementation, as an embodiment, the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 5.

In a specific implementation, as an embodiment, the apparatus 500 may include multiple processors, such as the processor 501 and the processor 505 in FIG. 5. Each of these processors can be a single-core processor or a multi-core processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise specified, "at least one" refers to one or more, and "multiple" refers to two or more than two. In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as “first” and “second” are used to distinguish the same or similar items whose functions and functions are basically the same. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first" and "second" do not limit the difference.

It should be noted that the name of the message between each device or the name of each parameter in the message in the following embodiments of this application is just an example, and other names may also be used in specific implementations, and the embodiments of this application do not specifically limit this .

For ease of understanding, the communication method provided in the embodiments of the present application will be specifically introduced below in conjunction with the accompanying drawings.

As shown in FIG. 6, an embodiment of the present application provides a communication method, including steps 601-606. Among them, the communication method includes a terminal capability reporting method.

601. The access network device sends a capability request to the terminal device, where the capability request includes capability report instruction information, and the capability report instruction information is used to indicate the capability report scope.

After the terminal device accesses the access network device, the access network device can send a capability request to the terminal device. The capability request can be sent through a radio resource control (Radio Resource Control, RRC) message, such as a capability request message, a capability query message, and so on. Alternatively, the capability request may be carried in an existing RRC message, for example, a capability request field is carried in the RRC connection establishment or RRC reconfiguration to request the terminal device to report the capability.

Wherein, the capability report indication information is used to indicate at least one of the capability information corresponding to the complete set of capability, the feature set, the capability identifier, or the capability information corresponding to the filtering parameter to be reported.

In a possible design, the capability report indication information includes capability complete set indication information, feature set indication information, capability identification indication information (for example, capability identification, or indication information used to indicate capability information corresponding to the reported capability identification), or filtering At least one of the parameters. Exemplarily, when the capability report indication information is used to indicate the ability to report the complete set of capabilities, the capability report instruction information may include the capability complete set indication information; when the capability report indication information is used to indicate to report the feature set, the capability report instruction information may include the feature set indication information; When the capability report instruction information is used to indicate the capability information corresponding to the capability identifier to be reported, the capability report instruction information includes capability identifier instruction information; the capability report instruction information is used to indicate that when the capability information corresponding to the first filter parameter is reported, the capability report instruction information includes filtering parameter.

In a possible design, the capability report indication information includes capability identification indication information, the capability identification indication information includes the first capability identification, or the capability identification indication information includes the first capability set information corresponding to the first capability identification for instructing to report Instructions.

In a possible design, the capability report indication information includes capability identifier indication information, the capability identifier indication information is a first capability identifier or the capability identifier indication information is used to indicate to report the first capability corresponding to the first capability identifier The indication information of the collection information.

Optionally, the capability report indication information may be filled in reserved bits in the capability request, or may be filled in newly added bits, which is not limited in this application.

Optionally, the capability report indication information can be used in combination with the RAT type to indicate the terminal device to report the capability of one or more RATs, that is, the capability indication information is only valid for the requested RAT.

In a possible design, the capability complete set indication information is used to instruct the terminal device to report all capability information of the terminal device. The all capability information includes at least one or a combination of the following: all band combinations supported by the terminal device, all feature set information supported by the terminal device, and all request-based reporting capabilities supported by the terminal device. It should be noted that when reporting capabilities in the prior art, some specific capabilities are reported based on a request from an access network device. For example, for SRS (sounding reference signal) carrier switching capability or measurement gap capability, it will only be reported when the access network device sets a specific capability report instruction in the capability request. If the capability request message does not include Report instructions for specific capabilities will not be reported. In this application, if the capability request carries a complete set of capability instructions, the terminal device needs to report these capabilities based on the request, without being restricted by the specific capability report instruction. For example, if the capability request is set to report the full set of capability information, even if the capability request message does not carry the SRS carrier switching capability request instruction and/or the measurement gap capability request instruction, the terminal device needs to report the supported SRS carrier when performing capability report. Switching capability and/or measurement gap capability. The all capability information may also include physical layer capabilities, radio frequency capabilities, and layer 2 capabilities of the terminal device (for example, packet data convergence protocol (PDCP) layer, radio link control, RLC) layer Or media access control (media access control, MAC) layer related capabilities), etc., which are not limited in this application.

In a possible design, the full set of capabilities indicated by the full set of capabilities indication is the full set of the terminal equipment within the access layer protocol. This does not exclude terminal equipment from filtering capabilities at other protocol levels. For example, the terminal device has already done certain capability filtering at the non-access layer, and the non-access layer transmits the filtered capability information to the access layer for reporting. That is, the full set of capabilities reported by the terminal device is the full set of capabilities obtained by the access layer, and the full set of capabilities obtained by the access layer is already filtered by the non-access layer. Exemplarily, when the capability storage module of the terminal device loads the capability information to the access layer baseband chip, the capability information can be filtered according to the frequency band supported by the operator to which the terminal device currently belongs, that is, the capability in the access layer baseband chip The information only includes the relevant capabilities of the frequency band supported by the operator to which the terminal device currently belongs.

Optionally, the capability complete set report indication information may be used in combination with the RAT type to instruct the terminal device to report all capabilities of one or more RATs indicated by the RAT type. For example, suppose that the capability request is set to report the full set of capabilities, and the RAT type is LTE RAT. At this time, the capability complete set report instruction information requires the terminal device to report all LTE capabilities, including the band combination and feature set supported by the terminal device in the LTE system.

In addition, it should be noted that in the prior art, if the LTE RAT capability is reported, if the access network device does not set filtering parameters, the terminal device will report all band combinations supported in the LTE system, but will not report the characteristics. Collection, because the feature collection is used when MR DC is working, it has no effect on the LTE single working mode. Only when the LTE and NR frequency bands are included in the filtering parameters set by the access network device, the terminal device reports the LTE feature set. In this way, if the access network device needs to request the full set of LTE capabilities, setting the filter parameter may result in incomplete reported feature set information, but without setting the filter parameter, the terminal device will not report the feature set information. In this application, the access network device can use the capability complete set indication information to instruct the terminal device to carry the feature set information supported by the terminal device in LTE when reporting the capability, so that the terminal device can be acquired in the LTE system without setting filtering parameters. Supported feature set information.

Furthermore, in the prior art, for the two types of RATs, MR DC and NR, if no filtering parameters are configured, the terminal device does not report any band combination and feature set information supported by the terminal device in the MR DC or NR system. In this application, the access network device can instruct the terminal device to report the capabilities of the two RATs MR DC and NR through the capability complete set indication information, and report all band combinations and feature set information supported by the terminal device in the MR DC or NR system In this way, the band combination and feature set information supported by the terminal device in MR DC and NR can be obtained without setting the filtering parameters.

In a possible design, the capability identifier indication information includes the first capability identifier, or the capability identifier indication information includes an indication information for instructing the terminal device to report the first capability corresponding to the internally preconfigured first capability identifier Collection information. The first capability identifier and the first capability set information may be pre-configured (pre-stored) on the terminal device. For example, the first capability identifier and the first capability set information may be pre-configured by the device manufacturer when the terminal device leaves the factory. Optionally, before the access network device sends the capability request to the terminal device, the terminal device or the core network device may send the first capability identifier to the access network device through an RRC message. When sending the capability request, the access network device may carry the first capability identifier to instruct the terminal device to report the first capability set information corresponding to the first capability identifier. Alternatively, when the access network device sends the capability request, it may carry indication information for instructing the terminal device to report the first capability set information corresponding to the internally pre-configured first capability identifier, so that the terminal device can determine what to report according to the indication information. The capability information is the first capability set information preconfigured internally.

Optionally, the first capability identifier pre-configured (pre-stored) on the terminal device may be related to the type of the terminal device. For example, when the model of multiple terminal devices is mate20 and the software version is the same, the first capability identifier corresponding to the multiple terminal devices may be A. In this way, terminal devices of the same type can only report the capability once, and other terminal devices can only report the capability identifier, reducing the overhead of capability reporting. The first capability identifier may include a capability identifier pre-configured by the terminal device and a capability identifier allocated by the network device. The pre-configured capability identifier of the terminal device is the capability identifier assigned to the terminal device by the terminal device manufacturer through factory settings or later through software update, and usually carries the type identification information of the terminal device. For example, the capability of a type of UE with the model of mate20 and the same software version can correspond to the capability identifier X, and some bits in the capability identifier X can be used to indicate that the manufacturer is Huawei. The capability identifier assigned by the network device is the capability identifier assigned by the network device to a group of specific capabilities, which does not contain terminal type identification information.

Optionally, the first capability identifier may be used in combination with the RAT type in the capability request message to instruct the terminal device to report the RAT capability part indicated by the RAT type in the capability set corresponding to the first capability identifier. For example, the capability report indication information includes the first capability identifier, and when the RAT type is NR, the terminal device is instructed to report the capability part of the NR in the capability set corresponding to the capability identifier.

In a possible design, the filtering parameter includes at least one of bandwidth information, frequency band information, or PLMN information. Wherein, bandwidth information, frequency band information or PLMN information may be indication information or identification respectively. Bandwidth information is used to instruct the terminal equipment to report all the bandwidth information it supports, frequency band information is used to instruct the terminal equipment to report frequency band information on each bandwidth it supports, and PLMN information is used to instruct the terminal equipment to report the frequency band used by the PLMN it supports Related Information.

In a possible design, the filtering parameter may carry specific bandwidth information, frequency band information or PLMN information. In this case, the terminal device determines the range of the reporting capability set according to the bandwidth information, frequency band information or PLMN information. For example, assuming that the bandwidth information carried in the filtering parameters includes band1+band2+band3, the terminal device can report all capability information related to band1, band2, or band3. For another example, assuming that the filtering parameters include PLMN information, the terminal device determines all frequency bands included in the PLMN according to the PLMN information, and determines the band combination to be reported based on these frequency bands. It is understandable that the terminal device may determine all frequency bands included in the PLMN information according to the correspondence between the PLMN and the frequency bands pre-stored or obtained from the network side.

In a possible design, the feature set indication information may be used to instruct the terminal device to carry the feature set information that it supports in the LTE system and/or the NR system when reporting the capability.

In the prior art, for LTE RAT, if the access network device does not carry filtering parameters, the terminal device will not report feature set information. In this application, the capability report indication information includes feature set information, indicating the terminal device's capabilities to be reported The information contains feature set information, which solves the problem that the access network device does not carry filtering parameters and the terminal device does not report the feature set information. Optionally, the capability information to be reported may also include other information such as band combination, which is not limited here.

Optionally, the characteristic set indication information may be used in combination with the RAT type to instruct the terminal device to report the characteristic set information of the RAT indicated by the RAT type. For example, the capability report indication information includes feature set information. When the RAT type is LTE, the terminal device carries the feature set information supported by the terminal device in the LTE system when reporting the LTE capability.

602. The terminal device receives a capability request from the access network device.

After receiving the capability request, the terminal device may determine the capability information to be reported according to the capability report instruction information in the capability request. Among them, the capability information is determined according to the scope of capability reporting.

In a possible design, the capability report instruction information indicates to report capability information corresponding to the first capability identifier, and the capability information includes the first capability set information corresponding to the first capability identifier; the capability report instruction information indicates to report the capability information corresponding to the first filter parameter Capability information, the capability information includes the second capability set information corresponding to the first filter parameter; the capability report indication information indicates the feature set to be reported, and the capability information includes the feature set information supported by the terminal device; and/or the capability report instruction information indicates the complete set of capabilities to be reported , The capability information includes all capability information supported by the terminal device.

Optionally, when the capability report indication information indicates to report the capability information corresponding to the first capability identifier and the first filter parameter, the capability information to be reported includes the first capability set information corresponding to the first capability identifier and the corresponding information corresponding to the first filter parameter. The second capability set information.

In a possible design, the capability report indication information includes capability identifier indication information to instruct the terminal device to report the first capability set information corresponding to the first capability identifier. Specifically, the capability identifier indication information includes a first capability identifier, or the capability identifier indication information includes an indication information for instructing the terminal device to report the first capability set information corresponding to the internally preconfigured first capability identifier. The terminal device determines that the first capability set information corresponding to the first capability identifier is the capability information to be reported according to the indicating first capability identifier or the foregoing instruction information. The first capability identifier and the first capability set information may be pre-configured (pre-stored) on the terminal device. For example, the first capability identifier and the first capability set information may be pre-configured by the device manufacturer when the terminal device leaves the factory. Optionally, the first capability set information may include band combinations supported by the terminal device and corresponding feature sets. Optionally, the first capability set information may also include that the terminal device supports other capabilities (for example, SRS carrier switching capability and/or measurement gap capability). In this way, the capability request message may not be considered for the capability of the terminal device that needs to be reported before request. Whether to carry the request information of the corresponding capability, directly report other capabilities included in the first capability set information. For example, even if the capability request message does not carry the SRS carrier switching capability request indication and/or the measurement gap capability request indication, the terminal device needs to report the supported SRS carrier switching capability and/or measurement gap capability when reporting the capability. In this way, the capability information (ie, the first capability set information) reported by the terminal device can be matched with the first capability identifier, which avoids the problem that the acquired capability information cannot match the first capability identifier due to inappropriate filter parameters set by the base station.

In a possible design, the capability report indication information includes capability complete set indication information. The terminal device determines that the capability information to be reported includes all the capabilities supported by the terminal device according to the capability complete set indication information, without considering the setting of other filtering parameters. For all the capabilities supported by the terminal device, refer to the relevant description of step 601 for details.

In a possible design, the capability report indication information includes the first filter parameter, which instructs the terminal device to report the second capability set information corresponding to the first filter parameter. The first filter parameter may include at least one of bandwidth information, frequency band information, or PLMN information, and the second capability set information to be reported to be reported by the terminal device according to the first filter parameter may include band combinations supported by the terminal device, At least one of characteristic set information and related capabilities of the PLMN frequency band. For details, refer to the relevant description of step 601.

In a possible design, the capability report indication information includes feature set indication information. The terminal device determines according to the feature set indication information that the capability information to be reported includes the feature set information supported by the terminal device. For details, refer to the relevant description of step 601.

603. The terminal device sends the capability information to the access network device according to the capability report instruction information.

Optionally, the capability information may be carried in the capability report RRC message, or may be carried in the capability information information element in other RRC messages, which is not limited here.

In a possible design, the terminal device may send the capability information to be reported to the access network device together, or if the size of the capability information to be reported exceeds the maximum value of the terminal device capability report message, the terminal device may send The capability information to be reported is split into multiple capability report messages and sent to the access network device.

Exemplarily, assuming that the capability information to be reported includes all the capabilities supported by the terminal device in the NR system (that is, the NR capabilities supported by the terminal device), the structure of the capability information may be as follows:

Among them, the format of featureSetCombinations can be as follows:

Exemplarily, the format of featureSets (Downlink) can be as follows:

Among them, NR BandCombiantionLists is used to describe the band combinations supported by the terminal device in NR, and each band combination includes a specific band. For example, band combination 1 may include band1+band2+band3. Of course, when the terminal device only supports one band, it can also report through this structure.

Among them, FeatureSetsCombinations is used to describe the feature set information supported by the terminal device in the NR. The feature set information may include a feature set combination list. As shown in Table 1, the feature set combination list may include multiple feature set combinations (FeatureSets Combination). Each feature set combination is used to indicate the capabilities supported on each band in one or more bandwidth combinations, such as the number of carriers, carrier bandwidth, multiple-input multiple-output (MIMO) capabilities, data processing Capacity (download and upload rate), maximum space division multiplexing capacity or modulation coding capacity, etc.

Table 1

Among them, each feature set combination can be a matrix element. Exemplarily, assume that matrix 1 corresponds to bandwidth combination 1. For example, matrix 1 is a combination of characteristic sets associated with the band combination of bandA+bandB+bandC. As shown in equation (1), each row of matrix 1 corresponds to the upstream and downstream feature set IDs (featuresetID) used by bandA, bandB, and bandC. Different rows indicate different feature sets supported by the terminal device in this band combination.

Feature set combination

Among them, each featureset ID corresponds to a set of physical parameters, which represent the capabilities supported on the corresponding band, such as the number of carriers, carrier bandwidth, MIMO capabilities, data processing capabilities, maximum space division multiplexing capabilities or modulation and coding capabilities.

The capability information structure of the LTE capability supported by the terminal device may refer to the foregoing capability information structure of the NR capability.

Exemplarily, assuming that the capability information to be reported includes all capabilities supported by the terminal device in the EN-DC system (that is, the EN-DC capabilities supported by the terminal device), the capability information may be as follows:

Among them, the MR-DC BandCombination list is used to describe the band combination list supported by the terminal equipment in the EN-DC system. The band combination list includes the band supported by the terminal equipment in the LTE system and the band supported by the terminal equipment in the NR system. featureSetCombinations includes featureSetsEUTRA and featureSetsNR. featureSetsEUTRA includes feature set information supported by the terminal equipment in the LTE system, and featureSetsNR includes feature set information supported by the terminal equipment in the NR system. Among them, the feature set information can refer to the relevant description above, which will not be repeated here.

The capability information structure of the NE-DC or NGEN-DC supported by the terminal device can refer to the capability information structure of the above-mentioned EN DC capability.

In addition, in a possible design, if the capability request does not carry the capability report indication information or the filtering parameters related to the base station, the terminal device can report all the information supported by the terminal device in the corresponding RAT according to the RAT type. Band combination and feature set information. For example, if the requested RAT type is NR, the terminal device carries all band combinations and feature set information supported by the terminal device in the NR system when reporting the NR capability.

604. The access network device receives capability information from the terminal device.

The access network device may receive the RRC message sent by the terminal device, and the RRC message includes the capability information of the terminal device.

605. The access network device sends capability information to the core network device.

The access network device can send capability information to the core network device through a capability indication message.

606. The core network device receives the capability information of the terminal device from the access network device.

After the core network device receives the capability information sent by the terminal device through the access network device, it can save the capability information of the terminal device, eliminating the need for the terminal device to report the capability of the terminal device multiple times, saving signaling overhead.

Optionally, if the terminal device does not have a pre-configured capability identifier and has not received the capability identifier assigned by the network device, or if the core network device does not store the first capability set information corresponding to the first capability identifier pre-configured by the terminal device, After obtaining the capability information of the terminal device, the core network device may allocate a capability identifier (second capability identifier) for the terminal device and send it to the terminal device, where the second capability identifier corresponds to the capability information of the terminal device. The core network device may assign the second capability identifier to the terminal device through non-access stratum (NAS) signaling, or the core network device may send the second capability identifier to the access network device, and the access network device It is sent to terminal equipment through RRC signaling. The terminal device may save the second capability identifier, and determine that the second capability identifier is related to the most recently reported capability information. Therefore, when the network requests the capability information of the terminal device again, the terminal device can send the second capability identifier without reporting the capability information again, which can save signaling consumption.

Based on the method provided in the embodiments of the present application, when the access network device needs to obtain the capability information of the terminal device, it can send a capability request to the terminal device. The capability request includes capability report instruction information, and the capability report instruction information is used to indicate capability report range. After receiving the capability request, the terminal device determines the capability information according to the capability report range, and sends the capability information to the access network device. Compared with the access network device requesting the capability information of the terminal device to set filtering parameters, the filtering parameters are usually only related to the capabilities of the access network device, resulting in the terminal device not being able to correctly or comprehensively report all the capabilities of the UE or the specific capabilities of the UE. Based on the method provided in the embodiments of the present application, the access network device can accurately indicate the capability report range of the terminal device through the capability report indication information, so that the terminal device is prepared to report the full capabilities or specific capabilities of the terminal device, which solves the problem of inappropriate base station settings. The filtering parameters lead to the problem that the full capabilities of the UE or the specific capabilities of the UE cannot be learned correctly or comprehensively.

Further, the access network device may set the capability report indication information to indicate at least one of the capability information corresponding to the complete set of capabilities, the feature set, the capability identifier, or the capability information corresponding to the filtering parameter. In this way, when the network needs to acquire all the capabilities of the UE or the specific capabilities of the UE (for example, the capability corresponding to the capability identifier of the terminal device), it can accurately indicate the capability report range of the terminal device through the capability report indication information, which prevents the base station from setting incorrectly. Appropriate filtering parameters lead to the problem that the full capabilities of the UE or the specific capabilities of the UE cannot be learned correctly or comprehensively.

As shown in FIG. 7, an embodiment of the present application provides a communication method, as shown in FIG. 7, including steps 701-708. Among them, the communication method includes a method for reporting the capability of a terminal device.

701. The core network device sends first indication information to the access network device.

When the core network device determines that it does not save the capability information of the terminal device, it may send the first indication information to the base station, so that the access network device can query the capability information of the terminal device. For example, the core network device may send the first indication information to the access network device through the initial connection context establishment message.

The first indication information is used to indicate at least one of a full set of capabilities request, feature set setting reference information, capability identification-based capability reporting request, or filtering parameter setting reference information.

In a possible design, the first indication information includes at least one of capability complete set indication information, feature set setting reference information, capability identification indication information, or filtering parameter setting reference information. Exemplarily, when the first indication information is used to indicate the full set of capabilities request, the first indication information may include the full set of capabilities indication information; when the first indication information is used to indicate the feature set setting reference information, the first indication information may include the feature set setting Reference information; when the first indication information is used to indicate a capability report request based on a capability identifier, the first indication information may include capability identifier indication information; when the first indication information is used to indicate filtering parameter setting reference information, the first indication information may include Filter parameter setting reference information.

For the full set of capability indication information, reference may be made to the related description of step 601. The capability identifier indication information may be used to indicate the first capability identifier, or the capability identifier indication information may be used to instruct the access network device to request the terminal device to report the first capability set information corresponding to the internally preconfigured first capability identifier. Optionally, the capability identifier indication information may include the first capability identifier, or the capability identifier indication information may include an indication information, which may be used to instruct the access network device to request the terminal device to report the internal pre-configured first capability identifier The corresponding first capability set information. The filter parameter setting reference information is used to determine the filter parameter, the filter parameter identifier, the instruction to enable a specific filter method or the filter parameter index, etc. Optionally, the filtering parameter setting reference information may include filtering parameters, filtering parameter identifiers, instructions for enabling specific filtering methods, or filtering parameter indexes, etc. For the filtering parameters, please refer to the related description of step 601. The filter parameter identifier or the filter parameter index corresponds to the filter parameter, and the corresponding relationship can be pre-configured on the access network device, or can be obtained through signaling interaction between the access network device and the core network device. The indication of enabling a specific filtering mode is used to instruct the access network device to use specific filtering parameters for capability query, for example, to use pre-saved filtering parameters consistent with the PLMN range of the access network device. The feature set setting reference information may be used to determine feature set indication information, feature set identification or feature set index, etc. Optionally, the feature set setting reference information may include feature set indication information, feature set identifier or feature set index, etc. For the characteristic set indication information, reference may be made to the related description of step 601. The feature set identifier or feature set index corresponds to the feature set indication information, and the corresponding relationship can be pre-configured on the access network device, or can be obtained through signaling interaction between the access network device and the core network device.

In a possible situation, before the core network device sends the first indication information to the access network device, the core network device may receive the first capability identifier reported by the terminal device, and the first capability identifier may be preconfigured by the terminal device. The capability identifier, or it may be a capability identifier assigned by the network device. Optionally, the terminal device may report the first capability identifier to the core network device through NAS signaling, or the terminal device may report the first capability identifier to the access network device through RRC signaling, and the access network device uses the first capability identifier The capability identification is sent to the core network device. Optionally, the terminal device may determine the reporting method according to the type of the first capability identifier. When the first capability identifier is a capability identifier pre-configured inside the terminal device, the terminal device may use NAS signaling to report the first capability to the core network device. Identifier; when the first capability identifier is the capability identifier allocated by the network device, the terminal device can use RRC signaling to report the first capability identifier to the access network device, so that the access network device sends the first capability identifier to the core network equipment. Among them, NAS signaling is encrypted signaling, and RRC signaling is unencrypted signaling. Since the pre-configured capability identifier of the terminal device contains the characteristic information of the terminal device, such as the manufacturer's logo of the terminal device, it needs to be transmitted in an encrypted manner to ensure the security of the characteristic information. However, the terminal device capability identifier allocated by the network device does not include the characteristic information of the terminal device, and unencrypted RRC signaling may be used to enable the access network device to obtain the first capability identifier as soon as possible. The unencrypted RRC signaling may be an RRC connection establishment request message or an RRC connection establishment complete message. After the core network device receives the first capability identifier, if the terminal device capability corresponding to the first capability identifier cannot be determined, such as determining that the mobility management function (access and mobility management function, AMF) network element or other network equipment does not store the first capability If the corresponding terminal device capability is identified, the core network device may set the first indication information to indicate the capability report request based on the first capability identifier. For example, the core network device may set the first indication information to include capability identifier indication information, the capability identifier indication information may include the first capability identifier, or the first indication information may include the first capability set corresponding to the first capability identifier. The indication information of the information is used to indicate that the terminal device is required to report the first capability set information corresponding to the internal pre-configured first capability identifier.

Optionally, if the core network device does not receive the first capability identifier sent by the terminal device, the core network device may set the first indication information to indicate at least one of the capability complete set request, feature set setting reference information, or filtering parameter setting reference information One kind. For example, the core network device may set the first indication information to include at least one of capability complete set indication information, feature set setting reference information, or filtering parameter setting reference information. Further, if the core network device determines that the terminal device does not have a capability identifier, the capability identifier can be allocated according to the query result.

702. The access network device receives the first instruction information sent by the core network device, where the first instruction information is used to determine the capability report instruction information, and the capability report instruction information is used to indicate the capability report range.

There is a corresponding relationship between the first indication information and the capability report indication information, and the corresponding relationship satisfies at least one of the following:

The first indication information indicates the first filter parameter setting reference information, the capability report indication information indicates to report the capability information corresponding to the first filter parameter, and the first filter parameter corresponds to the first filter parameter setting reference information; the first indication information Instructs the first feature set to set reference information, the capability report indication information indicates to report the first feature set, the first feature set corresponds to the first feature set information to set reference information, for example, may be determined according to the reference information; first indication information Indicate the capability report request based on the first capability identifier, the capability report instruction information indicates to report at least one of the capability information corresponding to the first capability identifier, the second feature set or the capability information corresponding to the second filtering parameter, the second feature set or the first capability information The second filter parameter corresponds to the first capability identifier, for example, may be determined according to the first capability identifier; the first indication information indicates a complete set of capabilities request, and the capability report instruction information indicates the complete set of capabilities, the third feature set, or the third filter parameter. At least one of the corresponding capability information, the third feature set or the third filter parameter corresponds to the full set of capabilities request, and may be determined according to the full set of capabilities request, for example.

It is understandable that both the first indication information and the capability report indication information may indicate the capability complete set report, the feature set report, the capability identification or the capability information report corresponding to the filtering parameter. It should be noted that the specific content and format of the first indication information sent by the core network device to the access network device may be the same or different from the specific content and format of the capability reporting indication information sent by the access network device to the terminal device.

In a possible design, the first indication information includes first filter parameter setting reference information, and the capability report indication information includes the first filter parameter corresponding to the first filter parameter setting reference information. For example, when the first filter parameter setting reference information includes the first filter parameter, the capability report indication information includes the first filter parameter. Alternatively, when the first filter parameter setting reference information includes the filter parameter identifier or the filter parameter index, the capability report indication information includes the filter parameter identifier or the first filter parameter corresponding to the filter parameter index. For example, multiple sets of filtering parameters can be configured in the core network in advance. For example, three sets of filtering parameters with the filtering parameter identifiers A, B, and C may be configured. When the first indication information includes the filtering parameter identifier A, the capability report indication information includes The filter parameter identifies the filter parameter corresponding to A (the first filter parameter). Alternatively, the filtering parameter is an instruction to enable a specific filtering mode, and the access network device determines to start a specific filtering parameter according to the instruction, such as a filtering parameter common to the PLMN. These specific filtering parameters can be preset in the access network equipment, and the access network equipment can set the filtering parameters accordingly.

In a possible design, the first indication information includes first feature set setting reference information, and the first feature set setting reference information instructs the access network device to request the terminal device to report the first feature set in the capability request. In a possible design, when the first feature set setting reference information is feature set indication information, the capability report indication information includes the feature set indication information. Alternatively, when the first feature set setting reference information is a feature set identifier or a feature set index, the capability report indication information includes the feature set identifier or the first feature set indication information corresponding to the feature set index.

In a possible design, the first indication information includes capability identification indication information, and the capability reporting indication information includes at least one of capability identification indication information, second feature set information, or second filtering parameters. Exemplarily, when the first indication information includes the first capability identifier, the capability report instruction information includes the first capability identifier, or includes instruction information for instructing the terminal device to report the first capability set information corresponding to the first capability identifier, Either includes the second feature set information determined according to the first capability identifier, or includes the second filter parameter determined according to the first capability identifier.

In a possible design, the first indication information includes capability complete set indication information, and the capability report indication information includes at least one of capability complete set indication information, third characteristic set indication information, or third filtering parameter. For example, when the first indication information includes the capability complete set indication information, the capability report indication information may include the capability complete set indication information, or the capability report indication information may include the third feature set indication information determined according to the capability complete set indication information or The third filter parameter.

703. The access network device sends a capability request to the terminal device.

For the specific process, please refer to the related description of step 601.

704. The terminal device receives a capability request from the access network device.

For the specific process, please refer to the relevant description of step 602.

705. The terminal device sends the capability information to the access network device according to the capability report instruction information.

For the specific process, please refer to the relevant description of step 603.

706. The access network device receives the capability information from the terminal device.

For the specific process, please refer to the relevant description of step 604.

707. The access network device sends capability information to the core network device.

For the specific process, reference may be made to the relevant description of step 605.

708. The core network device receives capability information from the terminal device.

For the specific process, please refer to the related description of step 606.

Optionally, if the terminal device does not have a pre-configured capability identifier, nor has it received the capability identifier assigned by the network device, or if the core network device does not store the capability information corresponding to the capability identifier pre-configured by the terminal device, the core network device acquires After the capability information of the terminal device is obtained, a capability identifier (a second capability identifier) can be assigned to the terminal device and sent to the terminal device. The second capability identifier corresponds to the capability information of the terminal device. The core network device may allocate the second capability identifier to the terminal device through NAS signaling, or the core network device may send the second capability identifier to the access network device, and the access network device sends the second capability identifier to the terminal device through RRC signaling. The terminal device may save the second capability identifier, and determine that the second capability identifier is related to the most recently reported capability information. Therefore, when the network requests the capability information of the terminal device again, the terminal device can send the second capability identifier without reporting the capability information again, which can save signaling consumption.

In the prior art, when the network needs to obtain all the capabilities of the UE or the specific capabilities of the UE (for example, the capability corresponding to the capability identifier of the terminal device), the access network device requests the capability information of the terminal device to set the filtering parameters, and the filtering parameters Usually it is only related to the capabilities of the access network equipment, resulting in the network being unable to accurately or comprehensively learn all the capabilities of the UE or the specific capabilities of the UE. Based on the method provided in the embodiments of this application, the access network device can accurately indicate the capability report range of the terminal device through the capability report indication information, and the terminal device can determine the capability information according to the capability report range, which can solve the problem of the base station setting inappropriate filtering parameters. The problem of not being able to accurately or comprehensively know all the capabilities of the UE or the specific capabilities of the UE.

Further, the core network device may set the first indication information to indicate at least one of the capability complete set request, the feature set setting reference information, the capability report request based on the capability identifier, or the filtering parameter setting reference information; the access network device may follow The first indication information determines the capability report instruction information, and the capability report instruction information is used to indicate to report at least one of a complete set of capabilities, a feature set, capability information corresponding to a capability identifier, or capability information corresponding to a filtering parameter. In this way, the capability report indication information can be used to accurately indicate the capability report range of the terminal device, which avoids the problem that the base station sets inappropriate filtering parameters and cannot correctly or comprehensively learn the full capabilities of the UE or the specific capabilities of the UE.

In addition, the first instruction information can ensure that different access network devices set consistent capability reporting instruction information when performing capability query, or can ensure that the same access network device sets consistent capability reporting instruction information when performing capability query on different terminal devices. So that terminal devices with the same capabilities can report the same capability information. Further, the core network device can allocate the same capability identifier to terminal devices with the same capability, so that the terminal device can only send the capability identifier to the capability identifier when reporting the next capability, saving signaling consumption. In addition, the core network device can uniformly store the capability information corresponding to the capability identifier, without separately storing the capability information of each terminal device, which can save the storage space of the core network device.

In the above-mentioned embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of the access network equipment, the terminal equipment, and the core network equipment, and their mutual interaction. In order to implement the functions in the methods provided in the above embodiments of the present application, the access network equipment, terminal equipment, and core network equipment may include hardware structures and/or software modules. The hardware structure, software module, or hardware structure plus software module Form to achieve the above functions. Whether one of the above functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application of the technical solution and design constraints.

In the case of dividing each functional module corresponding to each function, FIG. 8 shows a possible structural schematic diagram of the access network device 8 involved in the foregoing embodiment. The access network device 8 includes: a sending unit 801 and Receiving unit 802. In the embodiment of the present application, the sending unit 801 is configured to send a capability request to a terminal device. The capability request includes capability reporting instruction information, and the capability reporting instruction information is used to indicate the capability reporting scope; the receiving unit 802 is configured to receive information from the terminal device. The capability information, the capability information corresponds to the capability report range; the sending unit 801 is also used to send the capability information to the core network device. In the method embodiments shown in FIG. 6 and FIG. 7, the sending unit 801 may be used to support the access network device to execute the processes 601 and 605 in FIG. 6; the processes 703 and 707 in FIG. The receiving unit 802 may be used to support the access network device to perform the process 604 in FIG. 6; the processes 702 and 706 in FIG. 7.

In the case of dividing each functional module corresponding to each function, FIG. 9 shows a possible structural schematic diagram of the terminal device 9 involved in the foregoing embodiment. The terminal device 9 includes a receiving unit 901 and a sending unit 902. The receiving unit 901 is configured to receive a capability request from an access network device, and the capability request includes capability reporting instruction information; the sending unit 902 is configured to send capability information to the access network device according to the capability reporting instruction information. In the method embodiments shown in FIGS. 6 and 7, the receiving unit 901 may be used to support the terminal device to perform the process 602 in FIG. 6; the process 704 in FIG. 7. The sending unit 902 may be used to support the terminal device to perform the process 603 in FIG. 6; the process 705 in FIG. 7.

In the case of dividing each functional module corresponding to each function, FIG. 10 shows a possible structural schematic diagram of the core network device 10 involved in the above embodiment. The core network device 10 includes: a sending unit 1001 and a receiving unit 1002. The sending unit 1001 is configured to send first indication information to the access network device, where the first indication information is used to indicate the capability report range; the receiving unit 1002 is configured to receive capability information of the terminal device from the access network device, and the capability information corresponds to Capability reporting scope. In the method embodiments shown in FIG. 6 and FIG. 7, the sending unit 1001 may be used to support the core network device to perform the process 701 in FIG. 7. The receiving unit 1002 may be used to support the core network device to perform the process 606 in FIG. 6; the process 708 in FIG. 7.

The division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another way of dividing. In addition, the functional modules in the embodiments of the present application may be integrated into one process In the device, it can also exist alone physically, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software function modules. Exemplarily, in the embodiment of the present application, the receiving unit and the sending unit may be integrated into the transceiver unit.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, a network device, user equipment, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state drive (solid state drives, SSD)) )Wait.

Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A communication method, characterized in that it includes:

The access network device sends a capability request to the terminal device, where the capability request includes capability report instruction information, and the capability report instruction information is used to indicate a capability report scope;

Receiving, by the access network device, capability information from the terminal device, the capability information corresponding to the capability report range;

The access network device sends the capability information to the core network device.
The communication method according to claim 1, wherein:

The capability report indication information is used to indicate at least one of the capability information corresponding to the complete set of capabilities, the feature set, the capability identifier, or the capability information corresponding to the filtering parameter to be reported.
The communication method according to claim 2, wherein the filtering parameter includes at least one of bandwidth information, frequency band information, or public land mobile network PLMN information.
The communication method according to any one of claims 1-3, wherein the method further comprises:

The access network device receives first indication information sent by the core network device, where the first indication information is used to determine the capability report indication information.
The communication method according to claim 4, characterized in that:

The first indication information is used to indicate at least one of a full set of capabilities request, feature set setting reference information, a capability identification-based capability reporting request, or filtering parameter setting reference information.
The communication method according to claim 5, wherein:

There is a correspondence between the first indication information and the capability report indication information.
The communication method according to claim 6, wherein the corresponding relationship between the first indication information and the capability report indication information satisfies at least one of the following:

The first indication information indicates first filtering parameter setting reference information, the capability reporting indication information indicates reporting capability information corresponding to the first filtering parameter, and the first filtering parameter corresponds to the first filtering parameter setting reference information;

The first indication information indicates the first feature set setting reference information, the capability report indication information indicates to report the first feature set, and the first feature set corresponds to the first feature set information setting reference information;

The first indication information indicates a capability report request based on the first capability identifier, and the capability report instruction information indicates to report the capability information corresponding to the first capability identifier, the second feature set, or the capability information corresponding to the second filter parameter At least one of, the second feature set or the second filtering parameter corresponds to the first capability identifier;

The first indication information indicates a full set of capabilities request, the capability reporting instruction information indicates to report at least one of the full set of capabilities, a third feature set, or capability information corresponding to a third filter parameter, and the third feature set or the first The three filtering parameters correspond to the full set of capabilities request.
The communication method according to any one of claims 1-7, wherein the capability report indication information includes capability identification indication information, the capability identification indication information is a first capability identification or the capability identification indication information is Instruction information for instructing to report the first capability set information corresponding to the first capability identifier;

The receiving, by the access network device, the capability information from the terminal device includes:

The access network device receives capability information from the terminal device, where the capability information includes first capability set information corresponding to the first capability identifier.
A method for reporting terminal capabilities, characterized in that it includes:

The terminal device receives a capability request from an access network device, where the capability request includes capability report instruction information;

The terminal device sends the capability information to the access network device according to the capability report instruction information.
The method for reporting terminal capabilities according to claim 9, wherein:

The capability report indication information is used to indicate at least one of the capability information corresponding to the complete set of capabilities, the feature set, the capability identifier, or the capability information corresponding to the filtering parameter to be reported.
The method for reporting terminal capabilities according to claim 10, wherein the filtering parameters include at least one of bandwidth information, frequency band information, or public land mobile network PLMN information.
The method for reporting terminal capabilities according to claim 10 or 11, wherein:

The capability report instruction information indicates to report capability information corresponding to a first capability identifier, and the capability information includes first capability set information corresponding to the first capability identifier;

The capability report indication information indicates to report capability information corresponding to the first filter parameter, and the capability information includes second capability set information corresponding to the first filter parameter;

The capability report indication information indicates a feature set to be reported, and the capability information includes feature set information supported by the terminal device; and/or

The capability report instruction information indicates a complete set of reported capabilities, and the capability information includes all capability information supported by the terminal device.
The method for reporting terminal capabilities according to any one of claims 9-12, wherein:

The capability report indication information includes capability identifier indication information, the capability identifier indication information is a first capability identifier, or the capability identifier indication information is used to instruct to report the first capability set information corresponding to the first capability identifier Instruction information;

The terminal device sending capability information to the access network device according to the capability report instruction information includes:

The terminal device sends capability information to the access network device according to the capability identifier indication information, where the capability information includes first capability set information corresponding to the first capability identifier.
A communication method, characterized in that it includes:

The core network device sends first indication information to the access network device, where the first indication information is used to indicate the capability report range;

The core network device receives capability information of the terminal device from the access network device, where the capability information corresponds to the capability report range.
The communication method according to claim 14, wherein:

The first indication information is used to indicate at least one of a full set of capabilities request, feature set setting reference information, a capability identification-based capability reporting request, or filtering parameter setting reference information.
The communication method according to claim 14 or 15, wherein the method further comprises:

The core network device receives a first capability identifier from the terminal device, where the first capability identifier corresponds to first capability set information, and the first capability set information is pre-configured.
The communication method according to any one of claims 14-16, wherein the method further comprises:

The core network device sends a second capability identifier to the terminal device, where the second capability identifier corresponds to the capability information of the terminal device.
A communication device, characterized in that it includes a processor and a memory;

The memory is configured to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so that the communication device executes the communication method according to any one of claims 1-8, or , So that the communication device executes the terminal capability reporting method according to any one of claims 9-13, or so that the communication device executes the communication method according to any one of claims 14-17.
A communication device, characterized in that it includes:

A sending unit, configured to send a capability request to a terminal device, where the capability request includes capability report instruction information, and the capability report instruction information is used to indicate a capability report scope;

A receiving unit, configured to receive capability information from the terminal device, where the capability information corresponds to the capability report range;

The sending unit is further configured to send the capability information to the core network device.
A communication device, characterized in that it includes:

A receiving unit, configured to receive a capability request from an access network device, where the capability request includes capability report instruction information;

The sending unit is configured to send the capability information to the access network device according to the capability report instruction information.
A communication device, characterized in that it includes:

A sending unit, configured to send first indication information to an access network device, where the first indication information is used to indicate a capability report range;

The receiving unit is configured to receive capability information of the terminal device from the access network device, where the capability information corresponds to the capability report range.
A computer-readable storage medium, characterized by comprising a program or instruction, when the program or instruction is executed by a computer, the communication method according to any one of claims 1-8 is realized, or The terminal capability reporting method according to any one of claims 9-13, or the communication method according to any one of claims 14-17 is implemented.