WO2021087834A1

WO2021087834A1 - Capability information query method and apparatus

Info

Publication number: WO2021087834A1
Application number: PCT/CN2019/116116
Authority: WO
Inventors: 于海凤; 李秉肇; 闫海东
Original assignee: 华为技术有限公司
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2021-05-14

Abstract

The present application provides a capability information query method and apparatus, capable of being applied in a communication system. The method comprises: a base station sends first indication information to other network devices to request capability information of a terminal device, the base station being capable of indicating a capability range of the required terminal device; and receive first capability information from the other network devices, the first capability information comprising the capability information of the terminal device. For example, the first capability information comprises channel sounding reference signal (SRS) switching capability information of the terminal device. By means of the capability information query method provided in the present application, the base station can flexibly request the capability information of the required terminal device, and the transmission efficiency of capability information between the base station and the other network devices is improved.

Description

Method and device for querying capability information

Technical field

This application relates to the field of communication technology, and in particular to a method and device for querying capability information.

Background technique

In the communication process, the network equipment generally determines the quality of the uplink channel by measuring the channel sounding reference signal (SRS) sent by the terminal equipment, and when the uplink and downlink channels share the same frequency and are used through time division , The measurement results of the uplink and downlink channels are reciprocal, and the network equipment can estimate the quality of the downlink channel based on the measurement results of the uplink channel. However, under normal circumstances, the number of uplink carriers supported by the terminal equipment is less than the number of downlink carriers. For example, the downlink channel supports 5 carriers and the uplink channel supports 1 carrier. For carriers that do not support the uplink channel, the network cannot know the corresponding downlink channel. quality. Therefore, the SRS switching (switching) technology is introduced to solve this problem. In the SRS switching technology, the terminal equipment can share the uplink transmission capability among various carriers.

Before the network device schedules the terminal device to perform certain functions, it needs to know the capability information of the terminal device related to the function. For example, before applying the SRS switching function, the network device needs to know the terminal device's SRS switching capability. Currently, network devices can request capability reporting from terminal devices through capability request messages. However, among multiple network devices (such as multiple base stations), the base stations do not know the capabilities of the supported terminal devices. If the terminal device does not have the capability to report, and If the network device serving the terminal device does not have the ability to store or request the terminal device to report, other network devices cannot obtain the corresponding terminal device capabilities through the serving network device. As the current network devices do not perceive the capabilities of the supported terminal devices, the network devices may not be able to acquire and transfer the capabilities of the terminal devices. In addition, there may be unnecessary signaling waste in some scenarios. Therefore, the inquiry and acquisition of the capabilities of the terminal equipment have become a technical point to be solved urgently.

Summary of the invention

This application provides a method and device for querying capability information, which can improve the flexibility of querying capability information between network devices.

In the first aspect, this application provides a method for querying capability information, which is applicable to the first network device. In this method, the first network device may send first indication information to the second network device, and the first indication information is used to request the capability information of the terminal device; further, the first capability information from the second network device is received, so The first capability information includes capability information of the terminal device.

It can be seen that in the capability information query method, the first network device can actively request the capability information of the terminal device from the second network device. Compared with passively receiving the capability information of the terminal device reported by the second network device, the capability information query is greatly improved. Flexibility.

Further, the first capability information is related to the first indication information. For example, the first capability information may include a certain item of capability information of the terminal device requested by the first indication information, thereby facilitating the second network device to report the capability information requested by the first network device and reducing the reporting of other unnecessary capability information. This helps to reduce the signaling interaction overhead and transmission efficiency between network devices.

In an optional implementation manner, the first indication information is carried in a next-generation NG interface establishment message, an initial user equipment message, or an Xn interface establishment message, or a capability request message, or a dual connection mode X2 interface establishment message . Correspondingly, the first capability information may be carried in the capability request response message. That is, the first network device may send the first indication information during or after the establishment of the Xn interface with the second network device; the second network device may send the first indication information to the first network device after the Xn interface is established The first ability information. Thereby, the first indication information can be carried in the related message of the Xn interface establishment process or the related message after the Xn interface is established, and the first capability information can be carried in the related message after the Xn interface is established.

In an optional implementation manner, the first indication information includes second indication information, and the second indication information is used to indicate a range of the requested capability information of the terminal device. Alternatively, the second indication information is carried in a message that is the same as the message in which the first indication information is located, or carried in another message and sent to the second network device. This implementation manner is beneficial for the second network device to report the capability information of the corresponding terminal device to the first network device based on the range, thereby avoiding unnecessary interaction of capability information and reducing signaling overhead.

In a possible design, the first indication information may include the second indication information, for example, may be the second indication information directly to indicate the range of the requested capability information of the terminal device. Correspondingly, the second indication information can be carried in the aforementioned message that can carry the first indication information.

In this possible implementation manner, the second indication information may have two possible design manners.

In a possible design, the second indication information may be an indication or a field to indicate the range of the requested capability information of the terminal device. For example, the capability information of each type or capability is represented by different identifiers or fields, and the second indication information may indicate a certain identifier or by including this field, so that the second network device can report the identifier or the field to the first network device. Capability information of the terminal device corresponding to the field. It can be seen that in this design, the second network device can determine the first capability information that needs to be reported based on the indication or field.

In another possible design, the second indication information may include type indication information and/or capability filtering parameter information to indicate the scope of the requested capability information of the terminal device. The type indication information is used to indicate the type of the requested capability information of the terminal device; the capability filtering parameter information is used to indicate the range, type, or parameter of the requested capability information of the terminal device. It can be seen that this design enables the second network device to determine the first capability information based on the type indication information and/or capability filtering parameter information.

There are three possible designs for the type indication information. In one type, the type indication information includes a first type indication, and the first type indication is used to indicate the type of capability information of the terminal device corresponding to the RAT type; the other type, the type indication information includes a second type indication, the second type indication The RAT type of the radio access technology used to indicate the capability information of the terminal equipment; another type, the type indication information includes a first type indication and a second type indication, and the second type indication and the first type indication jointly indicate the capability information of the terminal equipment RAT type, and the capability information of the terminal device corresponding to the RAT type; another type, the type indication information includes a third type indication, and the third type indication is used to indicate the type of the capability information of the terminal device, that is, which RAT is not restricted Types of.

In a possible implementation manner, the first indication information further includes third indication information, or the third indication information may be carried in the message where the first indication information is located, or the third indication information may be carried in Other messages are sent to the second network device. The third indication information is used to instruct the second network device to request capability information from the terminal device through the second indication information when the first condition is met. It can be seen that when the second network device does not have or does not fully have the capability information of the terminal device requested by the first network device, this implementation method can request capability information from the terminal device while avoiding communication between the second network device and the terminal device. Frequent interaction of capability information.

The first condition may include one or more of the following: the second network device receives a preset number of first indication information sent by the second network device, or the second network device receives a specific second network device sent The first indication information, or the time of the timer reaches (the timer started after the second network device receives the first indication information). Correspondingly, the third indication information may indicate the parameter corresponding to the first condition, for example, one or more of the preset number, the identifier of the specific second network device, the timing duration of the timer, and so on. Alternatively, the third indication information may indicate whether the first condition is triggered, and the first condition may be predefined and determined by a protocol.

In this application, the capability information of the terminal equipment includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval (short TTI) And short processing time capability information.

In this application, the first network device may be an access network device; the second network device may be an access network device or a core network device.

In this application, one or more of the first instruction information, the second instruction information, and the third instruction information is taken as a possible implementation manner, but each implementation manner may include the first instruction information and the second instruction information. At least one of them.

In the second aspect, this application also provides a method for querying capability information. The difference between this capability information query method and the capability information query method provided in the first aspect is that the first network device can inform the second network device of the capabilities of the terminal device supported by the first network device, so that the second network device The first capability information may be determined based on the capability, and the capability information to avoid reporting is greater than the processing capability of the first network device or the capability information to avoid reporting is a capability that the first network device does not support.

In the capability information query method, the first network device sends fourth instruction information to the second network device, and the fourth instruction information is used to indicate the capability information of the terminal device supported by the first network device; the first network device receives the second network device. The first capability information sent by the network device, where the first capability information includes the capability information of the terminal device.

Alternatively, the fourth indication information is used to indicate at least one capability of the terminal device supported by the first network device, or the fourth indication information is used to indicate at least one capability supported by the first network device and/or the first network device does not The ability to support. Wherein, the capability of the terminal device supported by the first network device can also be understood as the capability supported by the first network device, which is used to determine whether the corresponding function can be performed in the subsequent communication process. Further, the second network device The device may determine the capability range of the terminal device to be determined according to the capability supported by the first network device, thereby improving the efficiency of determining the capability information of the terminal device.

In a possible implementation manner, the fourth indication information may be carried in a next generation interface establishment message, or an Xn interface establishment message, or a capability request message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message.

In a possible implementation manner, the first network device further sends third instruction information to the second network device, and the third instruction information is used to instruct the second network device to send the second instruction information to the second network device when the first condition is satisfied. The terminal device requests the capability information. Specifically, for the relevant explanation of the second indication information and the third indication information, please refer to the relevant content of the above-mentioned first aspect, which will not be described in detail here.

In this application, the first network device is an access network device; the second network device is an access network device or a core network device.

The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.

In a possible implementation manner, before the first network device sends the fourth indication information to the second network device, the first network device may receive a capability query message from the second network device, where the capability query message is used for Request the first network device to report the capability information of the supported terminal device. It can be seen that this implementation manner is beneficial to informing the first network device whether it supports the capability information of the terminal device, thereby avoiding reporting unnecessary capability information and reducing signaling overhead.

In the third aspect, this application also provides a method for querying capability information. The capability information query method may be related to the capability information query method described in the first aspect, and is explained from the perspective of the second network device. In this method, the second network device receives first instruction information from the first network device, where the first instruction information is used to request capability information of the terminal device; sends the first capability information to the first network device, and The first capability information includes capability information of the terminal device.

In a possible implementation manner, the first indication information is carried in a next-generation NG interface establishment message, an initial user equipment message, or an Xn interface establishment message, or a capability request message, or a dual connection mode X2 interface establishment message.

In another possible implementation manner, the first indication information includes second indication information, and the second indication information is used to indicate a range of the requested capability information of the terminal device.

In a possible design, the second indication information is an indication or field to indicate the range of the requested capability information of the terminal device.

The design may be based on whether the second network device has capability information of this range, and may have different operations.

In one case, the second network device has capability information in the range, and the second network device may determine fifth indication information based on the second indication information, where the fifth indication information includes type indication information and/or capability filtering parameter information; The second network device extracts the capability information corresponding to the fifth indication information from the capability information of the terminal device.

In another case, if the second network device does not have the capability information in this range, the second network device may send a capability request message to the terminal device and receive the capability information from the terminal device; the second network device may use the capability information as the first The capability information is sent to the first network device. Wherein, the capability request message includes fifth indication information.

In another possible design, the second indication information includes type indication information and/capability filtering parameter information to indicate the scope of the requested capability information of the terminal device. The design can also be based on whether the second network device has capability information in this range, and may have different operations.

In one case, the second network device has capability information of this range. The second network device may extract the capability information corresponding to the second indication information from the capability information of the terminal device, or obtain the content of the field corresponding to the second indication information to determine the first capability information.

In another case, there is no capability information of this range in the second network device. The second network device may send a capability request message to the terminal device, and the capability request message includes the second indication information; the terminal device may send the capability information of the terminal device to the second network device based on the second indication information. Furthermore, the second network device can determine the first capability information therefrom.

That is, in this implementation manner, the second network device sends a capability request message to the terminal device and receives capability information from the terminal device. Wherein, the capability request message further includes fifth indication information or the second indication information, and the fifth indication information is determined according to the second indication information.

In this application, the second indication information includes type indication information and/or capability filtering parameter information; the type indication information is used to indicate the type of the requested capability information of the terminal device; the capability filtering parameter information is used to indicate the requested capability information The range of the capability information of the terminal device.

In one possible case, the type indication information includes a first type indication, and the first type indication is used to indicate the type of capability information of the terminal device corresponding to the RAT type; in another possible case, the type indication information includes the first type indication. The second type indication, the second type indication is used to indicate the RAT type of the radio access technology of the capability information of the terminal device; in another possible situation, the type indication information includes the first type indication and the second type indication, the second type indication and The first type indicates the RAT type that jointly indicates the capability information of the terminal device, and the type of the capability information of the terminal device corresponding to the RAT type. In another type, the type indication information includes a third type indication, and the third type indication is used to indicate the type of capability information of the terminal device, that is, which RAT type is not restricted.

In a possible implementation manner, the first indication information further includes third indication information, and the third indication information is used to instruct the second network device to request capabilities from the terminal device through the second indication information when the first condition is met. information. For the relevant content of the third indication information and the first condition, please refer to the relevant description of the first aspect above.

In this implementation manner, when the second network device receives the second indication information and there is no capability information within the range indicated by the second indication information in the second network device, it may send a capability request message to the terminal device when the first condition is met ; And then receive the capability information of the terminal device. The capability request message may be determined based on the second indication information, or determined based on the third indication information and the second indication information. The following describes possible operations of the second network device based on the third indication information, but it is not limited to the following operations.

In one case, the third indication information is used to instruct the second network device to request capability information from the terminal device through the second indication information when receiving a preset number of first indication information sent by the first network device. In this case, after receiving the first indication information, the second network device will receive a preset number of first indication information sent by the first network device based on the second indication in the preset number of first indication information. The range indicated by the information respectively determines the capability request message; the second network device sends the capability request message to the terminal device, and receives the capability information returned by the terminal device. Correspondingly, the second network device will determine the first capability information corresponding to the first network device from the capability information for each first network device.

In another case, the third indication information is used to instruct the second network device to request capability information from the terminal device through the second indication information when receiving the first indication information sent by the specific first network device. In this case, when the second network device receives the first indication information, it will determine whether the first network device is a specific first network device based on the third indication information, and if so, determine the capability request message based on the second indication information, And send it to the terminal device; if not, the capability request message is not sent to the terminal device.

In this application, the capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information. The first network device is an access network device; the second network device is an access network device or a core network device.

For related explanations of this aspect, please refer to the related content of the first aspect, which will not be detailed here.

In the fourth aspect, this application also provides a capability information query method, which corresponds to the capability information query method described in the second aspect, and is explained from the perspective of the second network device. In the capability information query method, the second network device receives fourth instruction information sent from the first network device, where the fourth instruction information is used to indicate the capability information of the terminal device supported by the first network device; the second network device sends The first network device sends first capability information, where the first capability information includes capability information of the terminal device.

In a possible implementation manner, the fourth indication information may be carried in a next generation interface establishment message, or an Xn interface establishment message, or a capability request message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message. Correspondingly, the first capability information can be carried in a message after the Xn interface is established.

In a possible implementation manner, the second network device further receives third instruction information from the first network device, and the third instruction information is used to instruct the second network device to pass the fourth instruction information when the first condition is satisfied. Request the capability information from the terminal device. Specifically, the relevant explanations of the fourth indication information, the third indication information and the first condition can be found in the relevant content of the above-mentioned first aspect, which will not be described in detail here.

In this application, the first network device is an access network device; the second network device is an access network device or a core network device. The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.

In a possible implementation manner, before the second network device receives the fourth indication information from the first network device, the method further includes: sending a capability query message to the first network device, where the capability query message is used to request the first network device. A network device reports the capability information of supported terminal devices. It can be seen that this implementation manner is beneficial for the first network device to obtain the capability information of the terminal device supported by the second network device, and determine whether to report the capability information of the terminal device supported by the first network device according to the capability information.

In a possible implementation manner, the first capability information is carried in a next generation interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message .

In the fifth aspect, an embodiment of the present application also provides a communication device. The communication device may be a network device, a device in a network device, or a device that can be matched and used with the network device. The communication device can implement part or all of the functions of the network device in the method examples described in the first aspect to the fourth aspect. For example, the function of the network device may have some or all of the functions in the embodiments of the present application, or may have The functions of any of the embodiments in this application are implemented separately. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

In a possible design, the structure of the communication device may include a processing unit and a transceiver unit. The processing unit is configured to support the communication device to perform a corresponding function in the method provided in any one of the first aspect to the fourth aspect. The transceiver unit is used to support communication between the communication device and other devices, and the other devices may be terminal devices. The communication device may further include a storage unit, which is used for coupling with the processing unit and the transceiver unit, and stores the program instructions and data necessary for the communication device.

In one embodiment, the communication device includes a transceiver unit;

The transceiver unit is configured to send first instruction information to a second network device, where the first instruction information is used to request capability information of the terminal device; and receive first capability information from the second network device, the first capability The information includes capability information of the terminal device.

Optionally, the communication device further includes a processing unit configured to determine the first indication information.

In another embodiment, the communication device includes a transceiver unit;

The transceiver unit is configured to receive first indication information from a first network device, where the first indication information is used to request capability information of the terminal device; and send the first capability information to the first network device, the first The capability information includes capability information of the terminal device. Optionally, the communication device further includes a processing unit configured to determine the first capability information based on the first indication information.

In another embodiment, the communication device includes a transceiver unit;

The transceiving unit is configured to send fourth instruction information to the second network device, where the fourth instruction information is used to indicate the capability information of the terminal device supported by the first network device; and to receive the first information from the second network device. Capability information, where the first capability information includes capability information of the terminal device.

Optionally, the communication device further includes a processing unit configured to determine the fourth indication information.

In another embodiment, the communication device includes a transceiver unit;

The transceiver unit is configured to receive fourth instruction information from the first network device, where the fourth instruction information is used to indicate the capability information of the terminal device supported by the first network device; and send the first network device to the first network device. Capability information, where the first capability information includes capability information of the terminal device.

Optionally, the communication device further includes a processing unit, configured to determine the first capability information according to the fourth indication information.

As an example, the processing unit may be a processor, the transceiving unit may be a transceiver, and the storage unit may be a memory.

In one embodiment, the communication device includes a transceiver;

The transceiver is configured to send first indication information to a second network device, where the first indication information is used to request capability information of the terminal device; and to receive first capability information from the second network device, the first capability The information includes capability information of the terminal device.

Optionally, the communication device further includes a processor, configured to determine the first indication information.

In another embodiment, the communication device includes a transceiver;

A transceiver, configured to receive first indication information from a first network device, the first indication information being used to request capability information of the terminal device; and sending the first capability information to the first network device, the first The capability information includes capability information of the terminal device.

Optionally, the communication device may further include a processor, configured to determine the first capability information by the first indication information.

In another embodiment, the communication device includes a transceiver;

The transceiver is configured to send fourth indication information to the second network device, where the fourth indication information is used to indicate the capability information of the terminal device supported by the first network device; and to receive the first information from the second network device. Capability information, where the first capability information includes capability information of the terminal device.

Optionally, the communication device further includes a processor, configured to determine the fourth indication information.

In another embodiment, the communication device includes a transceiver;

The transceiver is configured to receive fourth indication information from the first network device, where the fourth indication information is used to indicate the capability information of the terminal device supported by the first network device; and send the first network device to the first network device. Capability information, where the first capability information includes capability information of the terminal device.

Optionally, the communication device further includes a processor, configured to determine the first capability information according to the fourth instruction information.

It can be seen that this is beneficial to improve the flexibility of capability information interaction between network devices, and can further avoid reporting unnecessary capability information and reduce signaling overhead.

In a specific implementation process, the processor can be used to perform, for example, but not limited to, baseband related processing; the transceiver can be used to perform, for example, but not limited to, radio frequency transceiving. The above-mentioned devices may be respectively arranged on separate chips, or at least part or all of them may be arranged on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip can be called a system on chip. Whether each device is arranged independently on different chips or integrated on one or more chips often depends on the specific needs of product design. The embodiment of the present application does not limit the specific implementation form of the foregoing device.

In a sixth aspect, an embodiment of the present application provides a processor, which is used to execute the methods provided in the first to fourth aspects. The processes of sending and receiving the above information can be understood as output by the processor. The process of the above information, and the process of the processor receiving the input of the above information. Specifically, when outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver for transmission by the transceiver. Furthermore, after the above-mentioned information is output by the processor, other processing may be required before it reaches the transceiver. Similarly, when the processor receives the above-mentioned input information, the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to undergo other processing before being input to the processor.

In this way, if there are no special instructions for the transmitting, sending, and receiving operations involved in the processor, or if it does not conflict with the actual function or internal logic in the relevant description, it can be understood more generally as The processor outputs and receives, inputs and other operations, instead of transmitting, sending and receiving directly by the radio frequency circuit and antenna.

In a specific implementation process, the foregoing processor may be a processor specifically configured to execute these methods, or a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The above-mentioned memory may be a non-transitory memory, such as a read only memory (ROM), which may be integrated with the processor on the same chip, or may be separately arranged on different chips. This application The embodiment does not limit the type of the memory and the setting mode of the memory and the processor.

In a seventh aspect, an embodiment of the present application also provides a chip system, which includes a processor and an interface. The chip system can be deployed in network equipment.

In a possible design, the interface is used to send first indication information to the second network device, the first indication information is used to request capability information of the terminal device; and to receive the first capability information from the second network device Information, the first capability information includes capability information of the terminal device. The processor is used to determine the first indication information.

In a possible design, the interface is used to receive first indication information from the first network device, the first indication information is used to request capability information of the terminal device; and to send the first capability information to the first network device Information, the first capability information includes capability information of the terminal device. The processor is configured to determine first capability information according to the first instruction information.

In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data for the terminal device. The chip system can be composed of chips, and can also include chips and other discrete devices.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium for storing computer software instructions used by the above-mentioned network device, which includes a method for executing the method described in any one of the above-mentioned first to fourth aspects The procedures involved.

In a ninth aspect, embodiments of the present application provide a computer program product including instructions, which when run on a computer, cause the computer to execute the method described in any one of the first to fourth aspects.

In a tenth aspect, an embodiment of the present application provides a system including a first network device and a second network device. The first network device sends first instruction information, and the second network device receives first instruction information from the first network device, where the first instruction information is used to request capability information of the terminal device; the second network device sends the first instruction information to the first network device. The network device sends first capability information, where the first capability information includes the capability information of the terminal device; the first network device receives the first capability information from the second network device.

Description of the drawings

FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

2 is a schematic flowchart of a method for querying capability information provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of another method for querying capability information provided by an embodiment of the present application;

4 is a schematic flowchart of another method for querying capability information provided by an embodiment of the present application;

FIG. 5 is a schematic flowchart of yet another capability information query method provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of a method for querying SRS handover capability information provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of another method for querying SRS handover capability information provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

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

FIG. 10 is a schematic structural diagram of a chip provided by an embodiment of the application.

Detailed ways

The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art knows that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

Fig. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application. The communication system shown in FIG. 1 includes at least two access network devices (such as access network devices 101 and 102) and one terminal device 104. The access network devices can communicate through the Xn interface. Optionally, the communication system shown in FIG. 1 may further include a core network device 103, and the access network device and the core network device may communicate through a next generation (NG) interface.

The technical solution of the present application can also be applied to independent networking, that is, new base stations, backhaul links, and core networks deployed in future networks, as well as various communication systems such as non-independent networking.

For example, the technical solution of the present application can be used in a fifth generation (5th generation, 5G) system, can also be referred to as a new radio (NR) system, or a sixth generation (6G) system or other future communications System; or it can also be used in device-to-device (D2D) systems, machine-to-machine (M2M) systems, long-term evolution (LTE) systems, and multi-mode access dual connection technologies (Multi -RAT Dual Connectivity (MR-DC) system and so on.

Among them, MR-DC can include new air interface and evolved universal mobile communication system dual connection (NR-EUTRAN dual connection, NE-DC), evolved universal mobile communication system and new air interface dual connection (EUTRAN-NR dual connection, EN- DC) and the next-generation evolved universal mobile communication system and the new air interface dual connection (Next Generation EUTRAN-NR dual connection, 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), that is, 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.

Among them, NE-DC is a dual connection of 5G NR and 4G wireless access networks, and the NR base station is the master node. NG EN-DC is a 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. EN-DC refers to the dual connection of 4G wireless access network and 5G NR. 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 a master node (MN).

In the embodiments of the present application, the access network device may be a device with a wireless transceiver function or a chip that can be installed in the device. The access network device includes but is not limited to: evolved node B (evolved node B, eNB), wireless Network controller (radio network controller, RNC), node B (Node B, NB), network equipment controller (base station controller, BSC), network equipment transceiver station (base transceiver station, BTS), home network equipment (for example, home evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless Return node, transmission point (transmission and reception point, TRP or transmission point, TP), etc.; it can also be equipment used in 5G, 6G or even 7G systems, such as gNB in NR system, or transmission point (TRP or TP) , One or a group of antenna panels (including multiple antenna panels) of the network equipment in the 5G system, or, it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU , Distributed unit, or picocell, or femtocell, or vehicle to everything (V2X) or roadside unit (RSU) in smart driving scenarios.

In some deployments, the gNB or transmission point may include a centralized unit (CU) and a distributed unit (DU, distributed unit). The gNB or transmission point may also include a radio unit (RU). The CU implements part of the functions of the gNB or transmission point, and the DU implements some of the functions of the gNB or transmission point. For example, the CU implements radio resource control (RRC) and the packet data convergence protocol (PDCP) layer. Function, DU realizes radio link control (RLC), media access control (media access control, MAC) and physical (physical, PHY) layer functions. Since the information of the RRC layer will eventually become the information of the physical layer, or be transformed from the information of the physical layer, in this architecture, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used. It is considered to be sent by DU, or sent by DU+RU. It can be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.

In addition, the CU can be divided into the network equipment in the radio access network (RAN), that is, the access network equipment, or the CU can be divided into the network equipment in the core network (core network, CN), referred to as the core network. Equipment, there is no restriction here. In the embodiments of the present application, the core network device corresponds to different devices in different systems. For example, in 4G, it can correspond to mobility management entity (MME) and/or serving gateway (S-GW); in 5G, it can correspond to Access and Mobility Management Function (AMF), Session Management Function (SMF) or User plane Function (UPF).

In the embodiments of this application, terminal equipment may include but is not limited to: user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal , User agent or user device, etc. For another example, the terminal device can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control Wireless terminals in (industrial control), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and transportation safety The wireless terminal in the smart city (smart city), the wireless terminal in the smart home (smart home), the aforementioned wireless terminal in the V2X car networking, or the wireless terminal type RSU, etc.

In the communication system shown in FIG. 1, the access network equipment takes the base station as an example, and the terminal equipment takes the mobile phone as an example for illustration. As shown in FIG. 1, the access network device 101 and the access network device 102 can communicate through an Xn interface. The access network device 101 and the access network device 102 may also communicate with the core network device 103 through the NG interface, respectively.

The access network device 102 may send a capability request message to the terminal device 104, and the capability request message contains type indication information and/or capability filtering parameters; the terminal device 104 may report the terminal device to the access network device 102 based on the capability request message Ability information.

For example, if the terminal device migrates from the access network device 102 to the access network device 101 scenario, or in the scenario where the access network device 102 is the main site in the dual-connection mode described above, the access network device 102 can transfer the terminal The capability information of the device 104 is sent to the access network device 101, so that the access network device 101 obtains the capability information of the terminal device 104.

For another example, after a radio resource control (Radio Resource Control, RRC) connection between the terminal device 104 and the access network device 101 is established, the access network device 101 will send a context establishment message to the core network device 103. If the core network device 103 has stored the capability information of the terminal device 104, the core network device 104 will send the capability information to the access network device 101 during the context establishment process, and the access network device 101 can use the capability and the terminal device 104 to communicate.

However, if the access network device 101 needs some kind of capability information of the terminal device, such as sounding reference signal (SRS) switching capability information, but the access network device 102 or the core network device 103 does not have the SRS switching capability of the terminal device Information (for example, the SRS switching capability information of the terminal device is not stored or requested), or the capability information of the terminal device required by the access network device 101 is not known, so the capability information cannot be requested from the terminal device, then the access network The device 101 will not be able to obtain the SRS switching capability information of the terminal device 104 in time. Such as sounding reference signal (or channel sounding reference signal). Among them, (sounding reference signal, SRS) can be translated into Chinese "channel sounding reference signal".

To solve this problem, an embodiment of the present application provides a method for querying capability information. In the capability information query method, the access network device 101 may send the first indication information to the access network device 102 for requesting the capability information of the terminal device 104, so as to be able to receive the first capability information from the access network device 102. The first capability information includes capability information of the terminal device. It can be seen that the embodiments of the present application can improve the flexibility of querying capability information between network devices.

In addition, in the embodiment of the present application, the access network device 101 may request certain capability information of the terminal device through the first indication information, or may indicate the capability information supported by the access network device 101 through the first indication information or other indication information. , So that the access network device 102 or the core network device 104 can reduce unnecessary capability information reporting.

In order to facilitate the understanding of the embodiments disclosed in the present application, some concepts related to the embodiments of the present application are first described. The elaboration of these concepts includes but is not limited to the following.

1. Type indication information, capability filtering parameter information

The type indication information is used to indicate the type of the capability information of the requested terminal device.

In a possible implementation manner, the type indication information includes a second type indication, and the second type indication is used to indicate a radio access technology (radio access technology, RAT) type of the capability information of the terminal device. The terminal equipment can support multiple standards, such as 4G, 5G, or future 6G, or other standards. Correspondingly, the capability information of the UE may include capability information of different standards or different RAT types.

For example, the UE has 4G capability information, 5G capability information, and so on. The UE also has multi-RAT capability information, that is, the ability of the UE to work in multiple RATs at the same time. The multi-RAT capability information includes EN-DC, NE-DC, etc. For example, EN-DC is a way that LTE and NR work together as DC and LTE is the master node, that is, a UE is connected to the LTE base station and the NR base station at the same time, and the two base stations provide services at the same time. Among them, the LTE master node means that LTE is the Control node. Multi-RAT capability is also requested as a RAT type during capability request.

In another possible implementation manner, the type indication information includes a first type indication, and the first type indication is used to indicate a type of capability information of the terminal device corresponding to the RAT type. The terminal equipment supports not only multiple standards, but also the capability information under each standard supported by the terminal equipment. For example, the SRS switching capability information of 4G UEs, the SRS switching capability information of 5G UEs, EN -SRS handover capability information of the UE of the DC, etc.

In another possible implementation manner, the type indication information includes a first type indication and a second type indication, respectively indicating the RAT type of the capability information of the terminal device, and the type of the capability information of the terminal device corresponding to the RAT type.

The capability filtering parameter information is used to indicate the range of the capability information of the requested terminal device, or parameters used to indicate the capability information of the requested terminal device, and so on. The capability filtering parameter information may include at least one of bandwidth information, detection signal switching SRS switching capability information, carrier aggregation capability information, and frequency band information. The terminal device or network device can filter the parameters according to the capability and report the capability information required by other network devices.

Among them, the bandwidth information is used to indicate the bandwidth information supported by the terminal device. The bandwidth information may indicate all the bandwidth information supported by the requesting terminal device, or may indicate that a certain range of bandwidth information is requested. The frequency band information is used to indicate the frequency band information supported by the requested terminal device, and may indicate the frequency band information of all or a specified range of the request. For example, the frequency band information includes BC1, BC2, and BC3, which means requesting all capability information of the terminal equipment related to BC1, BC2, and BC3. The carrier aggregation capability information is used to indicate the capability information related to carrier aggregation that the terminal device is requested to support. For example, the carrier aggregation capability information is used to indicate the carrier aggregation bandwidth combination, the non-carrier aggregation bandwidth, the aggregated bandwidth capability, the uplink and downlink single carrier capability, the continuous carrier capability, the UL discontinuous carrier aggregation, and the DL non-continuous carrier aggregation supported by the requested terminal device Continuous carrier aggregation. For another example, the carrier aggregation capability information is used to indicate the requesting terminal equipment to indicate in the bandwidth capability that can be aggregated: the maximum number of uplink aggregated carriers that the UE can provide in carrier aggregation, and the maximum number of downlink aggregated carriers that the UE can provide in carrier aggregation.

The type indication information may be combined with the capability filtering parameter information to indicate the range of the capability information of the terminal device, that is, the capability filtering parameter information corresponding to the type indicated by the type indication information. For example, if the type indication information indicates a certain RAT type, then the capability filtering parameter information is the capability filtering parameter information corresponding to the RAT type. For another example, if the RAT type indicated by the type indication information is NR, then the capability filtering parameter information may be UE Capability Request Filter NR, that is, the capability information of the terminal device corresponding to the NR type.

For example, the following is an example of a capability request message, where SEQUENCE is an array set, maxRAT-CapabilityContainers is the number of RATs simultaneously requested in the current capability request message, and a capability request message includes at least one capability request for a single RAT (UE-CapabilityRAT-Request), each capability request for a single RAT includes a RAT type and a capability filter parameter (Capability Request Filter), where the RAT type is used to indicate the requested RAT type, and the capability filter parameter is used to indicate a network device Requested band list (band list). In the example, each bandlist also includes one or more of carrier number (FreqBandList) information, carrier bandwidth information (FreqBandInformation), and carrier aggregation capability (AggregatedBandwidth) information.

The structure of the type indication information is as follows:

The structure of the capability filtering parameter information is as follows:

2. Capability information of terminal equipment

The capability information reported by the terminal device is determined based on the type indication information and/or capability filtering parameter information in the capability request message from the network device, for example, the second indication information in the embodiment of the present application.

The structure of the capability information of the terminal equipment is different under different standards or RAT types. The structure of the corresponding capability information (the structure of the capability information can be referred to as the capability structure) can meet the needs of the network equipment to provide services for the terminal equipment, and the terminal equipment that needs to be known Ability information.

For example, the capability structure of a 5G UE may include but is not limited to the following parts: a band combination list (BC) and feature set (feature set combination) information supported by the UE in 5G. The 5G UE capability structure may also include other radio frequency capabilities, physical capabilities, and measurement capabilities.

The UE capability structure of LTE may include, but is not limited to, the following parts: frequency 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.

The UE capability structure in EN-DC needs to include but is not limited to the following parts: LTE, MR-DC and NR three capability information. Correspondingly, the UE capability structure in EN-DC includes but is not limited to the following parts: BC in MR-DC capability, feature set information in LTE capability, and feature set information in NR capability, so that network equipment can fully obtain EN-DC capability information. Currently, when the base station requests the UE for feature set information in the LTE capability, it needs to include NR and LTE bands in the filtering parameters. Among them, the capability information of the three RATs can be requested separately through three capability request messages, or simultaneously requested in the same capability request message.

When the network device requests the UE capability information of the LTE UE from the UE, the UE determines the capability information of the UE that needs to report the LTE UE according to whether the capability filtering parameter information includes the feature set featuresetEUTRA of LTE. For example, if the capability filtering parameter information includes the combination of frequency bands supported by NR and LTE respectively, the UE considers that the network device needs the capability information of multiple RATs (such as EN-DC). In this case, the capability filtering parameter information also needs to include the featuresetEUTRA of LTE , The UE will report the LTE capability information, otherwise the UE does not include featuresetEUTRA. For the capability information of NR and MR-DC, the capability filtering parameter includes the above structure, otherwise, the UE will not report the capability information of the UE.

3. SRS switching capability information

The SRS switching (switching) capability information may be SRS carrier switching (carrier switching) capability information, SRS carrier switching (carrier switching) capability information, SRS switching (switching or switching) capability information, and the like. The SRS switching capability information needs to include the frequency band combination that supports SRS switching, and the time required for the terminal device to perform SRS switching between the two frequency band combinations.

When the network device determines to request SRS switching capability information from the terminal device, it can include an SRS switching time request (such as srs-SwitchingTimeRequest) in the capability query (such as UE CapabilityEnquiry) message to instruct the network device to request the UE to report SRS switching capability information .

For example, the way to include srs-SwitchingTimeRequest in UECapabilityEnquiry is as follows: UECapabilityEnquiry includes at least one capability request for a single RAT (UE-CapabilityRAT-RequestList), and UE-CapabilityRAT-RequestList includes RAT-type (type) and capability filtering Parameter CapabilityRequestFilter information.

When the RAT-Type indicates "NR", the CapabilityRequestFilter information corresponds to UECapabilityRequestFilterNR, and the UECapabilityRequestFilterNR includes srs-SwitchingTimeRequest. When the srs-SwitchingTimeRequest field is set to "true", it means that the network device requests SRS switching capability information.

For example, the structure of UECapabilityRequestFilterNR is as follows:

Correspondingly, the terminal device determines to report the SRS switching capability information according to the srs-SwitchingTimeRequest field. The terminal device determines the sounding reference signal switching time (SRS switching time) supported under the frequency band combination according to the frequency band combination included in the UE-CapabilityRequestFilterNR configuration (the frequency band combination indicated by the frequencyBandListFilter field), and reports these SRS switching times to the network device.

For example, if the frequency band combination indicated in frequencyBandListFilter is (band A, band B, band C), the terminal device needs to report:

band A to Band B SRS switching time;

band A to Band C SRS switching time;

band B to Band C SRS switching time;

band A to Band A SRS switching time;

band B to Band B SRS switching time;

band C to Band C SRS switching time;

Specifically, the terminal device reports the aforementioned SRS Switching capability information in a UE Capability Information (UECapabilityInformation) message. Among them, the srs-SwitchingTimeRequest field may also be referred to as srs-SwitchingTimeRequest indication.

For example, the structure of SRS Switching capability information is as follows:

In order to clearly describe 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 items or similar items that have substantially the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit the difference. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

For example, the first network device and the second network device are used to distinguish two network devices that exchange capability information. In the embodiment of the present application, the first network device may be an access network device, such as the access network device 101 in FIG. 1. The second network device may be an access network device or a core network device, such as the access network device 102 or the core network device 103 in FIG. 1.

For another example, the first indication information, the second indication information, the third indication information, the fourth indication information, and the fifth indication information are used to distinguish different indication information. Wherein, the first indication information is used to request capability information of the terminal device. The second indication information is used to indicate the range of the requested capability information of the terminal device. The third indication information is used to instruct the second network device to request capability information from the terminal device through the aforementioned second indication information when the first condition is met. The fourth indication information is used to indicate the capability information of the terminal device supported by the first network device, or the fourth indication information is used to indicate the capability of at least one terminal device supported by the first network device, or the fourth indication information It is used to indicate at least one capability supported by the first network device and/or capability not supported by the first network device. The fifth indication information is determined by the second network device according to the second indication information, and is also used to indicate the capability information of the requested terminal device (or indicate the range of the requested capability information of the terminal device). It should be noted that in specific implementation, the above indication information can be carried in the same message or in different messages, which is not limited in the embodiment of the present application. For example, the first indication information to the third indication information can be carried. In the same message, part or all of it may also be carried in different messages, which is not limited in the embodiment of the present application.

The following describes the capability information query method described in the embodiment of the present application in conjunction with the accompanying drawings and the above-mentioned related concepts.

Please refer to FIG. 2, which is a schematic flowchart of a method for querying capability information according to an embodiment of the present application. As shown in Figure 2, the capability information query method may include the following steps:

201. A first network device sends first indication information to a second network device.

Wherein, the first indication information is used to request capability information of the terminal device.

For example, the first indication information is carried in an Xn setup request (Xn setup request) message, or it may be an Xn message when an interface between other access network devices is established, or an interface between another access network device and a core network device is established. NG message at the time. For another example, the first indication information is carried in a dual connection mode X2 interface setup message, such as an EN-DC X2 interface setup message.

For another example, the first indication information may be carried in other Xn messages, for example, in a secondary base station modification request message after the interface is established, such as a secondary base station modification request (Secondary gNB Modification Required) message.

For another example, the first indication information may be carried in a secondary node addition message, such as a Secondary node Addition Request message, where the secondary node may be a gNB or an eNB.

202. The second network device receives first indication information from the first network device, where the first indication information is used to request capability information of the terminal device.

Optionally, the second network device needs to determine the capability information of the terminal device according to the first indication information, that is, the first capability information. The first capability information is capability information that needs to be reported to the first network device. Wherein, the first capability information is related to the first indication information. The first capability information may include the capability information of the terminal device requested by the first indication information, and may also include other capability information related to the capability information of the terminal device requested by the first indication information.

In an example, the capability information of the terminal device requested by the first network device is SRS handover capability information, but the first capability information may also include carrier aggregation capability information or bandwidth capability information of the terminal device. For the capability information, reference may be made to the description of the terminal capability information in the foregoing conceptual part, which is not limited in the embodiment of the present application.

In another example, the first capability information may include not only the capability information of the terminal device requested by the first indication information, but also the capability information related to the first network device, such as the capability related to the processing capability of the first network device. information.

In another example, the first capability information may include other information sent by the second network device, such as other non-capability information, where the non-capability information may be configuration information of the network device, resource usage information, energy-saving status of the network device, etc. information.

203. The second network device sends first capability information to the first network device, where the first capability information includes capability information of the terminal device.

In the embodiment of the present application, the second network device may send the first capability information to the first network device through a context establishment message, or a handover message, or a capability request response message. For example, in the secondary base station modification confirmation (Secondary gNB Modification Confirm) message after the interface is established. For another example, the first capability information may be carried in a secondary node addition message, such as a secondary node addition request (Secondary node Addition Request) message. Among them, the secondary node may be a gNB or an eNB.

204. The first network device receives first capability information from the second network device.

It can be seen that, in this embodiment of the present application, the first network device may send the first indication information to instruct the second network device to send the first capability information, thereby achieving flexible acquisition of the capability information of the terminal device. Further, the first network device can obtain the first capability information related to the first indication information without receiving other unnecessary capability information, thereby saving signaling overhead between network devices.

In a possible implementation manner, the first indication information includes the second indication information, or the second indication information may be carried in the same message as the message in which the first indication information is located, or carried in other messages and sent to the first indication information. 2. Network equipment. The embodiment of this application does not limit the sending form of the content indicated by the second instruction information and the first instruction information. The second indication information is used to indicate the range of the requested capability information of the terminal device.

In a possible design, the second indication information may be an indication or field for indicating capability information of a certain type or capability. For example, one type of identifier corresponds to the aforementioned capability information of the terminal device of the RAT type, or corresponds to one type of capability information of the terminal device. For example, the second indication information is an SRS handover query indication or an SRS handover query field, which is used to indicate a request for SRS handover capability information, that is, to query the terminal equipment's transmission capability and time required for switching between frequency bands.

In this possible design, in step 202, after receiving the first indication information, the second network device also needs to determine the first capability information to be reported according to the range of capability information indicated by the second indication information. For example, based on the RAT type of the capability information indicated by the second indication information, it is determined to report the capability information of the terminal device related to the RAT type. For another example, based on a certain type of capability information indicated by the second indication information, it is determined to report the type of capability information or the capability information related to the type of capability information. For example, if the capability information indicated by the second indication information includes SRS handover capability information, the second network device determines that the first capability information reported includes the SRS handover capability information, or may also include the capability information related to the SRS handover capability information, Combination information of frequency bands supported by the terminal device as explained in the concept section above.

In a possible implementation manner, if the second network device has the first capability information, it can directly report the first capability information to the first network device. If the second network device does not have the first capability information, as shown in FIG. 3, the second network device also needs to send a capability request message to the terminal device.

In Figure 3, compared to Figure 2, the second network device may determine fifth indication information based on the second indication information; carry the fifth indication information in the capability request message and send it to the terminal device; correspondingly, the terminal The device determines the reported capability information of the terminal device according to the capability request message; further, the terminal device reports the capability information of the terminal device to the second network device.

Optionally, the capability request message may be a UE Capability Enquiry message. The capability request message may include fifth indication information. The fifth indication information is determined based on the second indication information. The fifth indication information may include type indication information, or capability filtering parameter information, or type indication information and capability filtering parameter information. Correspondingly, as shown in FIG. 3, the terminal device can determine and report the capability information of the terminal device based on the fifth indication information.

For example, the second indication information is an indication or field, indicating that the range of the capability information of the requested terminal device is SRS handover capability information, and the second network device determines the fifth indication information. The fifth indication information includes: the type indication RAT-Type in the capability request message described in the concept part, and the capability filter parameter UE-CapabilityRequestFilterNR field. Among them, the UE-CapabilityRequestFilterNR field includes srs-SwitchingTimeRequest. Correspondingly, the terminal device reports corresponding SRS handover capability information based on the type indication and capability filtering parameters in the fifth indication information, such as the capability request message described in the concept part.

The above-mentioned fifth indication information is, but not limited to, it is determined based on the first indication information, or is determined based on the second indication information. For example, the second network device may receive the first indication information or the second indication information respectively sent by the multiple first network devices, so as to determine the fifth indication information based on the multiple first indication information or the second indication information. Correspondingly, the capability information of the terminal device reported by the terminal device to the second network device includes, but is not limited to, a type of first capability information, or this type of first capability information and related capability information.

In another possible implementation manner, the second indication information may include type indication information and/or capability filtering parameter information. That is, the first indication information sent by the first network device to the second network device includes the range of the requested capability information of the terminal device. Among them, the relevant description of the type indication information and the capability filtering parameter information can be referred to above, and an explanatory example is given here, and the details are not repeated.

Correspondingly, the second network device may determine the reported first capability information according to the second indication information. Wherein, if the second network device has the capability information of the terminal device indicated by the second indication information, it may directly send the requested capability information of the terminal device to the first network device. If there is no capability information of the terminal device indicated by the second indication information, as shown in FIG. 4, unlike the capability information query method shown in FIG. 2, the second network device can carry the second indication information in the capability In the request message, the capability request message is forwarded to the terminal device, thereby receiving capability information from the terminal device, such as first capability information.

For example, if the second indication information includes type indication information, the second network device may determine, based on the type indication information, that the first capability information includes capability information of the terminal device of the type indicated by the type indication information. That is, the type indication information is used to indicate that the type of the request is: one or more of the aforementioned RAT types. For example, if the RAT type indicated by the type indication information is the 4G type, the first capability information needs to include at least the capability information of the 4G type terminal device. For another example, the type indication information is used to indicate the SRS switching capability information of the 4G type terminal device, and the first capability information needs to include at least the SRS switching capability information of the 4G type terminal device.

For another example, if the second indication information includes capability filtering parameter information, the second network device may determine the first capability information based on at least one type of parameter information included in the capability filtering parameter information. For example, the second network device determines the bandwidth information of the terminal device in the first capability information based on the bandwidth information in the capability filtering parameter information (for example, it may be all bandwidth information supported by the terminal device or a certain range of bandwidth information). For another example, assuming that the frequency band information included in the capability filtering parameter includes BC1, BC2, and BC3, the second network device can determine that the first capability information needs to include at least all capability information related to BC1, BC2, and BC3.

For another example, when the second indication information includes capability filtering parameter information and type indication information, the second network device may determine the first capability information according to the capability filtering parameter information and type indication information. The capability filtering parameter information is the capability filtering parameter information corresponding to the type indicated by the type indication information.

Among the above two types of implementations of the second indication information, in the first type of implementation, when the second network device does not have the capability information of the terminal device indicated by the second indication information, as shown in FIG. 3, the second network device also needs The fifth instruction information is determined according to the second instruction information, and the fifth instruction information is sent to the terminal device to request the capability information of the corresponding terminal device. In the second type of implementation, the first network device itself determines the second indication information, and the second indication information includes type indication information and/or capability filtering parameter information, so there is no information indicated by the second indication information in the second network device. In the case of the capability information of the terminal device, as shown in FIG. 4, the second network device may directly forward the second indication information to the terminal device to request the corresponding capability information of the terminal device.

In yet another possible implementation manner, in the capability information query method shown in FIG. 2 to FIG. 4, the first indication information may include the third indication information, or the third indication information may also be carried by the first indication information. The indication information is in the same message or carried in other messages and sent to each second network device.

In a possible design, the third indication information is used to instruct the second network device to request the capability information from the terminal device through the second indication information when the first condition is met.

In the embodiment of the present application, the first condition may be whether the second network device receives the first indication information sent by the specific first network device. Optionally, the third indication information may include identification information of the specific first network device. If the first instruction information sent by the specific first network device is received, the second network device requests the terminal device for capability information through the second instruction information.

Alternatively, the first condition may be whether the second network device receives a preset number of first indication information sent by the first network device. Optionally, the third indication information may include the preset quantity or an indication of the preset quantity. If the first instruction information sent by the preset number of first network devices is received, the second network device requests the terminal device for capability information through the second instruction information sent by each first network device. Wherein, the preset number may be predefined by a protocol, or negotiated and determined between the first network device and the second network device, for example, negotiated and determined during the establishment of the Xn interface.

In the embodiment of the present application, the second network device requesting capability information from the terminal device through the second instruction information may include: as shown in FIG. 3, determining the fifth instruction information based on the second instruction information, or based on a preset number of first instructions. The second instruction information respectively sent by a network device determines the fifth instruction information; and sends the fifth instruction information to the terminal device to request capability information. Alternatively, the second network device requesting capability information from the terminal device through the second indication information may include: as shown in FIG. 4, the second network device forwards the second indication information or a preset number of second indication information to the terminal device, To request capability information.

Correspondingly, if the second network device does not meet the first condition, the second network device may request the terminal device for capability information after the first condition is satisfied.

It can be seen that this design can prevent the second network device from frequently requesting capability information from the terminal device, or it is beneficial for the second network device to request capability information from the terminal device for a specific first network device.

In another possible design, the third indication information is used to instruct the second network device to send the first capability information to the first network device through the second indication information when the first condition is met. In this design, the second network device may have the capability information of the terminal device requested by the first indication information or indicated by the second indication information, and the second network device may obtain the capability information of the terminal device based on the second indication information. In the process, the first capability information is determined and reported to the first network device. Or, for a plurality of first network devices, the second network device may respectively determine the first capability information required by each first network device based on the second indication information, and respectively report to the corresponding first network device.

It can be seen that in this design, the second network device can centrally process or report the capability information of the terminal device for a specific first network device.

In yet another possible design, the third indication information is used to indicate the second condition that the second network device needs to satisfy for the first capability information reported to the first network device. For example, the second condition is the range or size of the capability information supported by the first network device.

In summary, since the first indication information is used to request the capability information of the terminal device, and the second indication information is used to indicate the range of the requested capability information of the terminal device, in some possible implementation manners, the first network device The second indication information may be sent to the second network device. The second network device may report the first capability information to the first network device based on the second indication information. Wherein, the first capability information includes at least capability information corresponding to the range indicated by the second indication information.

Please refer to FIG. 5. FIG. 5 is a schematic flowchart of yet another capability information query method provided by an embodiment of the present application. Fig. 5 is compared with Fig. 2 to Fig. 4, the difference is that the first network device in Fig. 5 sends the second network device the fourth indication information, so that the second network device can determine based on the fourth indication information The first capability information reported to the first network device. As shown in Figure 5:

301. The first network device sends fourth indication information to the second network device.

The fourth indication information is used to indicate the capability of at least one terminal device supported by the first network device. Alternatively, the fourth indication information is used to indicate capability information of the terminal device supported by the first network device. Alternatively, the fourth indication information is used to indicate at least one capability supported by the first network device and/or capability not supported by the first network device. Wherein, the capability of the terminal device supported by the first network device can also be understood as the capability supported by the first network device, which is used to determine whether the corresponding function can be performed in the subsequent communication process. Further, the second network device The device may determine the capability range of the terminal device to be determined according to the capability supported by the first network device, thereby improving the efficiency of determining the capability information of the terminal device. For example, if the first network device instructs the first network device to support the SRS switch function through the fourth indication information, the second network device may determine whether the terminal device supports the SRS switch function after receiving the fourth indication information.

Specifically, the first network device may indicate the capabilities supported by the first network device through one or more bits in the fourth indication information.

In an optional implementation manner, one or more types of capability information of the terminal device may be uniformly represented by one bit. When the value of this bit is 0, it means that the first network device does not support the one or more types of capabilities. Information: When the value of this bit is 1, it means that the first network device supports the one or more capability information. Or, when the value of the bit is 0, it means that the first network device supports the one or more kinds of capability information; when the value of the bit is 1, it means that the first network device does not support the one or more kinds of capability information. . Optionally, the corresponding representation relationship between one bit and one or more types of capability information may be preset by the protocol or pre-configured, which is not limited in the embodiment of the present application. In this implementation manner, the fourth indication information may determine the required total number of bits based on the type or quantity of the capability information of the terminal device and the corresponding representation relationship preset or pre-configured by the protocol.

In another possible implementation manner, one or more bits may be used to identify the information whether the first network device supports one or more terminal device capabilities. When a bit is at 1, it means that the first network device supports the terminal capability information corresponding to the bit, and vice versa; or, when a bit is at 0, it means that the first network device supports the terminal capability information corresponding to the bit. On the contrary, there is no restriction here.

In addition, the order of the capability information of the terminal device corresponding to each bit is not limited, and may be predetermined by the protocol. For example, the first bit corresponds to the SRS switching capability, and the second bit corresponds to frequency band information.

For example, assuming that the first network device supports four capabilities, and information about each capability is represented by one bit, the fourth indication information requires four bits to indicate the capability information of the terminal device supported by the first network device. When the binary value of the four bits is 1111, it means that the first network device supports the four capabilities; when the binary value of the four bits is 0111, it means that the first network device does not support the capability corresponding to the first bit , And supports the three capabilities corresponding to the last three bits. Therefore, this implementation manner may enable the fourth indication information to indicate the capability information of the terminal device supported by the first network device, or enable the fourth indication information to indicate the capability information of the terminal device not supported by the first network device, or enable the fourth indication information to indicate the capability information of a terminal device not supported by the first network device. The indication information can indicate the capability information of the terminal device supported by the first network device and the capability information of the unsupported terminal device.

In another possible implementation manner, each or multiple types of capability information of the terminal device may be uniformly represented by one field. When this field is included in the fourth indication information, it means that the first network device supports one or more capabilities corresponding to this field; when the fourth indication information does not include this field, it means that it does not support a type corresponding to this field. Or multiple abilities. Therefore, this implementation manner may enable the fourth indication information to indicate information about the capabilities of a terminal device supported by the first network device, or enable the fourth indication information to indicate information about the capabilities of a terminal device not supported by the first network device, or enable the first Fourth, the indication information can indicate the capability information of the terminal device supported by the first network device and the capability information of the unsupported terminal device. Optionally, the corresponding representation relationship between a field and one or more types of capability information may be preset by the protocol or pre-configured, which is not limited in the embodiment of the present application.

For example, each or multiple types of capability information of the terminal device can be represented by a field. When the fourth indication information includes a certain field, it means that the first network device supports the terminal capability information corresponding to the field; on the contrary, if it does not include this field, Field, it means that the corresponding terminal capability information is not supported.

In a possible implementation manner, the fourth indication information is carried in the next generation interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message, or the secondary base station Adding message.

302. The second network device receives fourth indication information.

The second network device may determine the capabilities of the terminal device supported by the first network device according to the fourth instruction information, so as to determine the capability information of the terminal device that needs to be reported.

As described in the above example, when the binary of the fourth indication information is 0111, it means that the first network device does not support the capability information corresponding to the first bit, but supports the three capability information corresponding to the last three bits. Then, the second network device may determine that the reported capability information of the terminal device needs to include three types of capability information corresponding to the three bits.

As described in the above example, the second network device may determine, according to the fourth indication information, that the reported capability information of the terminal device needs to include: capability information corresponding to the fields included in the fourth indication information.

In a possible implementation, when the second network device knows the capability information supported by the first network device (for example, the second network device stores or has requested information about the capabilities supported by the first network device), The second network device may obtain the capability information supported by the first network device from the capability information of the terminal device to determine the first capability information.

In another possible implementation manner, when the second network device does not know the capability information supported by the first network device (for example, the second network device does not store or has not requested information about the capabilities supported by the first network device), The second network device may determine the fifth indication information based on the fourth indication information. The fifth indication information may be similar to that described above, including type indication information and/or capability filtering parameter information. Furthermore, the second network device carries the fifth indication information in the capability request message, and sends the capability request message to the terminal device, so that the terminal device determines the reported capability information of the terminal device according to the fifth indication information.

303. The second network device sends the first capability information to the first network device.

304. The first network device receives first capability information.

Wherein, the first capability information includes at least the capability information of the terminal device supported by the first network device indicated by the fourth indication information.

In a possible implementation manner, the capability information of the terminal device, that is, the first capability information may include one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information , Short transmission time interval and short processing time capability information.

In a possible implementation manner, the first capability information is carried in a next generation interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message.

Before step 303, the second network device may also receive third indication information from the first network device. The third indication information is used to instruct the second network device to send the fourth indication information to the terminal device when the first condition is met. Request the capability information. Among them, the relevant description of the third indication information and the first condition can refer to the relevant content of the above-mentioned first aspect, which will not be detailed here.

For example, when the second network device determines that the first condition is satisfied, it may determine fifth indication information based on the fourth indication information, and send a capability request message including the fifth indication information to the terminal device. Optionally, the fifth indication information may be determined based on the fourth indication information and the first condition. For example, the first condition is similar to the above, and a preset number of first network devices send fourth indication information, then the fifth indication information may be determined based on a preset number of fourth indication information. Correspondingly, the second network device respectively determines the first capability information corresponding to each first network device from the capability information reported by the terminal device, and sends it to the corresponding first network device respectively.

In another possible implementation manner, before the first network device sends the fourth indication information to the second network device, the first network device may receive a capability query message from the second network device, and the capability query message is used Requesting the first network device to report the capability information of the supported terminal device. It can be seen that this implementation manner is beneficial to informing the first network device whether it supports the capability information of the terminal device, thereby avoiding reporting unnecessary capability information and reducing signaling overhead.

Optionally, the first indication information may also include the identification of the terminal device. Therefore, it is advantageous for the second network device to return the capability information of the terminal device corresponding to the identifier to the first network device. For example, when the second network device has the capability information of the terminal device corresponding to the identifier, the capability information of the terminal device may be sent to the first network device. For another example, when there is no capability information of the terminal device corresponding to the identifier in the second network device, a capability request message may be sent to the terminal device corresponding to the identifier to request the capability information of the terminal device. There may be one or more terminal devices corresponding to the identifier, which is not limited in the embodiment of the present application.

The following description is based on FIG. 6 and FIG. 7, taking the capability information of the terminal device requested by the first network device as the SRS handover capability information as an example.

Wherein, in the SRS handover capability information query method shown in FIG. 6, if the second network device does not have the SRS handover capability information, the second network device needs to determine the capability filtering parameter information and/or type indication information by itself. In the SRS handover capability information query method shown in FIG. 6, the first network device can determine the required SRS handover capability information by itself, such as specific capability filtering parameter information. Explained separately below.

The method for querying SRS handover capability information shown in FIG. 6 may include the following steps:

401. The first network device sends an SRS switching enquiry (SRS switching enquiry) instruction to the second network device.

The SRS switching enquiry indication may be carried in the next generation interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message, or the secondary base station addition message. The SRS switching enquiry indication is used to indicate the SRS switching capability information of the terminal device supported by the first network device. Alternatively, the SRS switching enquiry indication is used to indicate whether the first network device supports the SRS switching capability information of the terminal device.

In an optional implementation manner, the above-mentioned fourth indication information or any one of the above-mentioned messages includes the SRS switching enquiry indication and the SRS switching enquiry indication is 1, indicating that the first network device supports SRS switching capability. Correspondingly, if the aforementioned fourth indication information or any of the aforementioned messages includes the SRS switching enquiry indication and the SRS switching enquiry indication is 0, it means that the first network device does not support the SRS switching capability information.

In an optional implementation manner, when the first network device does not support the SRS switching capability, the first network device may not send the SRS switching enquiry indication to the second network device; or, receive a capability query message from the first network device At the time, send the SRS switching enquiry instruction. Among them, as mentioned in the above example, the SRS switching enquiry indication may be 0, to indicate that the SRS switching capability information is not supported.

In another optional implementation manner, the fourth indication information or any of the foregoing messages that the first network device can send to the second network device includes the SRS switching enquiry field, indicating that the first network The device supports SRS switching capabilities. Correspondingly, if the SRS switching enquiry field is not included in the foregoing fourth indication information or any of the foregoing messages, it indicates that the first network device does not support SRS switching capability information.

In an optional implementation manner, when the first network device does not support the SRS switching capability, the first network device may not send the SRS switching enquiry field to the second network device.

In an optional implementation manner, before step 401, that is, before the first network device sends an SRS handover query instruction to the second network device, the first network device may receive a capability query message from the second network device. The query message is used to request the first network device to report the capability information of the supported terminal device.

It should be noted that, in this article, the capability request message sent by the first network device to the second network device may include first indication information, second indication information, and so on. The type indication information and/or capability filtering parameter information contained in the capability request message sent by the second network device to the terminal device is based on the first indication information and second indication information from a first network device by the second network device Determined, or determined based on first indication information and second indication information from multiple first network devices. That is to say, the capability request message sent by the first network device to the second network device is different from the interactive device of the capability request message sent by the second network device to the terminal device, and the content contained in it can be determined based on the relevant implementations in this document.

402. The second network device receives the SRS switching enquiry instruction.

In a possible implementation, if the second network device has SRS switching capability information of the terminal device, the second network device extracts the SRS switching capability information of the terminal device from the capability information of the terminal device, and reports it to the first network. equipment.

In another possible implementation, if there is no SRS switching capability information in the second network device, the second network device determines the capability filtering parameter information and/or type indication information based on the SRS switching enquiry instruction, and sends the capability to the terminal device A request message. The capability request message includes capability filtering parameter information and/or type indication information.

For example, the type indication information is used to indicate the type corresponding to the SRS handover capability information. For example, assuming that the type indication information is used to indicate the SRS switching capability information of the NR type terminal device, the SRS switching capability information needs to include the SRS switching time corresponding to the band combination supported by the NR type terminal device.

For another example, the capability filtering parameter information includes the capability filtering parameter corresponding to the SRS handover capability information. Correspondingly, the terminal device can report the SRS switching time corresponding to the supported band combination.

For another example, the second network device determines the type indication information and the capability filtering parameter information corresponding to the SRS handover capability information. For example, the RAT type indicated by the capability filtering parameter information is the LTE type, then the SRS switching capability information included in the capability filtering parameter information includes at least the SRS switching time corresponding to the band combination supported by the LTE type terminal device.

For example, the capability filtering parameter information in the capability request message has an SRS handover capability information request field. When the SRS handover capability information request field is set to true (true), it means that the terminal device is requested for the SRS handover capability information. E.g:

Ability to filter parameter information {

SRS handover capability information request true

}.

Correspondingly, the terminal device can report the frequency band combination supported by the terminal device or the SRS switching capability information of the frequency band combination supported by the terminal device corresponding to the type indication information based on this field.

For another example, the determined capability filtering parameter information and/or type indication information may be similar to the type indication RAT-Type in the capability request message for requesting SRS switching capability information as described in the aforementioned conceptual part, and the capability filtering parameter UE- CapabilityRequestFilterNR field. Among them, the UE-CapabilityRequestFilterNR field includes srs-SwitchingTimeRequest.

Therefore, the second network device may send the determined capability filtering parameter information and/or type indication information to the terminal device, so that the capability information reported by the terminal device includes SRS switching capability information.

403. The second network device sends SRS handover capability information to the first network device.

The SRS handover capability information may be sent to the first network device through a next generation interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message. For example, the first capability information is carried in the SgNB Modification Confirm (Secondary gNB Modification Confirm) message after the interface is established, or in the secondary station addition response message, or carried in the Xn interface establishment message.

For example, SRS switching capability information includes: band combination supported by terminal equipment: band 1+band 2+band3; handover and the time for SRS switching between bands in the band combination, that is, the SRS switching time from band 1 to band 2, and band 1 handover The SRS switching time to band 3 and the SRS switching time from band 2 to band 3. The SRS switching time from band 1 to band 1 represents the SRS switching time between two carriers in one band.

It can be seen that in FIG. 6, the request operation of SRS switching capability information can be supported between network devices, so that the flexibility of the network device to obtain SRS switching capability information is increased, and the ability information that is not needed by the network device can be avoided.

In addition, in Figure 6, the SRS switching enquiry indication can be sent during the establishment of the Xn interface. In this way, it may be beneficial for the second network device to directly use the pre-acquired information about whether each first network device supports or request SRS switching capability to determine the capability request message sent to the terminal device when it needs to request capability information from the terminal device. Alternatively, the SRS switching enquiry instruction can be used to obtain the SRS switching capability information through Xn interface messages (such as SgNB Modification required message) when the first network device needs SRS switching capability information after the Xn interface establishment process, which can reduce the interaction information. Order overhead.

Please refer to FIG. 7. In the capability information query method shown in FIG. 7, the first network device may determine the corresponding type indication information and/or capability filtering parameter information based on the required SRS handover capability information of the terminal device. Specifically, the capability information query method may include the following steps:

501. The first network device determines type indication information and/or capability filtering parameter information required for SRS handover capability information;

It can be seen that in this embodiment, the first network device can determine the type indication information and/or the capability filtering parameter information by itself according to the required capability information.

502. The first network device sends type indication information and/or capability filtering parameter information to the second network device.

For example, if the first network device determines that SRS handover capability information is needed, it determines by itself the type indication information and/or capability filtering parameter information corresponding to the SRS handover capability information. The type indication information and/or capability filtering parameter information may be carried in a next generation interface establishment message, or an Xn interface establishment message, or a capability request message, or a dual connection mode X2 interface establishment message, and sent to the second network device.

Wherein, the type indication information and/or capability filtering parameter information includes SRS switching capability information, for example, including at least the SRS switching time between frequency bands corresponding to the frequency band combination supported by the terminal device.

For example, in step 501, the first network device determines the UE-CapabilityRequestFilterNR field.

In step 502, the first network device includes the UE-CapabilityRequestFilterNR field in the SgNBModificationRequired message and sends it to the eNB. The UE-CapabilityRequestFilterNR field includes srs-SwitchingTimeRequest. Optionally, the UE-CapabilityRequestFilterNR field may also be included in other Xn (Xn is an interface between base stations) messages, which is not limited in the embodiment of the present application.

In a possible implementation manner, if the second network device has the SRS switching capability information, the SRS switching capability is extracted from the capability information of the terminal device according to the type indication information and/or capability filtering parameter information sent by the first network device The information is sent to the first network device; or the field of the SRS switching capability information corresponding to the type indication information and/or the capability filtering parameter information is extracted from the capability information of the terminal device, and sent to the first network device.

In another possible implementation manner, if there is no SRS switching capability information in the second network device, the second network device forwards the capability filtering parameter information and/or type indication information to the terminal device to request SRS from the terminal device Switch capability information. That is, in FIG. 7, the capability request message includes the capability filtering parameter information and/or type indication information, so that the capability information reported by the terminal device includes at least the SRS handover capability information. Switch

503. The second network device sends SRS handover capability information to the first network device.

504. The second network device receives SRS handover capability information.

It can be seen that in the capability information query method shown in FIG. 7, the first network device can determine specific type indication information and/or capability filtering parameter information based on the capability information required by itself, compared to determining the type indication by the second network device. Compared with the method of information and/or capability filtering parameter information, it can further improve the matching degree between the exchanged capability information and the capability information required by the first network device, and further reduce the reporting of unnecessary capability information, thereby reducing the trustworthiness. Order overhead.

In FIGS. 2 to 7, the type indication information and capability filtering parameter information sent by the first network device, or the type indication information and capability filtering parameter information sent by the second network device to the terminal device, can all be containers such as instructions or fields. Correspondingly, in the reported capability information or the first capability information, these containers may have corresponding values or contents.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the application. The communication device 800 shown in FIG. 8 may include a transceiving unit 801. The transceiving unit 801 may include a transmitting unit and a receiving unit. The transmitting unit is used to implement a transmitting function, the receiving unit is used to implement a receiving function, and the transceiving unit 801 may implement a transmitting function and/or a receiving function. The transceiver unit 801 can also be described as a communication unit.

The communication device 800 may be a network device, a device in a network device, or a device that can be matched and used with a terminal device.

In one embodiment:

The transceiving unit 801 is configured to send first indication information to a second network device, where the first indication information is used to request capability information of the terminal device; receive first capability information from the second network device, and the first The capability information includes capability information of the terminal device.

In a possible implementation manner, the transceiver unit 801 may send the first indication information to the second network device through the next generation interface establishment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message. .

In another embodiment, the transceiver unit 801 is configured to receive first indication information from a first network device, where the first indication information is used to request capability information of the terminal device; and send the first indication information to the first network device. Capability information, where the first capability information includes capability information of the terminal device.

For the related content of the two embodiments, please refer to the related descriptions of FIGS. 2 to 4, 6, and 7, which will not be described in detail here.

In yet another embodiment, the transceiver unit 801 is configured to send fourth indication information to the second network device, the fourth indication information is used to indicate capability information of the terminal device supported by the first network device; and to receive information from the second network device. The first capability information of the device; the first capability information is related to the fourth indication information or determined based on the fourth indication information. The first capability information includes capability information of the terminal device.

In yet another embodiment, the transceiver unit 801 is configured to receive fourth indication information from the first network device, where the fourth indication information is used to indicate capability information of the terminal device supported by the first network device; The device sends first capability information, where the first capability information is related to the fourth indication information or determined based on the fourth indication information. The first capability information includes capability information of the terminal device.

For the related content of the two embodiments and the related description of the fourth indication information, please refer to the related description of FIG. 5, which will not be described in detail here.

Optionally, the communication device shown in FIG. 8 may further include a processing unit 802 configured to determine the first indication information or the fourth indication information, or the aforementioned third indication information or the second indication information Wait.

In another possible implementation manner, the processing unit 802 is further configured to determine the first capability information according to the first indication information, or determine the first capability information according to the second indication information, or determine the first capability information according to the fourth indication information. Information, etc. For details, please refer to the relevant content of the foregoing method embodiment.

Fig. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device 900 may be a network device, or a chip, a chip system, or a processor that supports the network device to implement the foregoing method. The device can be used to implement the method described in the foregoing method embodiment, and for details, please refer to the description in the foregoing method embodiment.

The communication device 900 may include one or more processors 901. The processor 901 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process The data of the software program.

Optionally, the communication device 900 may include one or more memories 902, on which instructions 904 may be stored, and the instructions may be executed on the processor 901, so that the device 900 executes the foregoing method implementation. The method described in the example. Optionally, data may also be stored in the memory 902. The processor 901 and the memory 902 can be provided separately or integrated together.

Optionally, the communication device 900 may further include a transceiver 905 and an antenna 906. The transceiver 905 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing the transceiver function. The transceiver 905 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., to implement a transmitting function.

In a possible implementation manner, the processor 901 is configured to determine the first indication information, or the second indication information, or the third indication information, or the fourth indication information; correspondingly, the transceiver 905 is configured to execute FIG. 2 to FIG. Steps 201 and 204 in FIG. 4; or execute steps 301 and 301 in FIG. 5; execute steps 401 and 404 in FIG. 6, or execute steps 501 and 504 in FIG. 7.

In a possible implementation manner, the processor 901 is configured to determine the fifth indication information and the first capability information; correspondingly, the transceiver 905 is configured to perform steps 202 and 203 in FIG. 2 to FIG. 4; or perform FIG. 5 Steps 302 and 303 in Figure 6; perform steps 402 and 403 in Figure 6, or perform steps 502 and 503 in Figure 7.

In another possible design, the processor 901 may include a transceiver for implementing receiving and sending functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuits, interfaces, or interface circuits used to implement the receiving and transmitting functions can be separated or integrated. The foregoing transceiver circuit, interface, or interface circuit may be used for code/data reading and writing, or the foregoing transceiver circuit, interface, or interface circuit may be used for signal transmission or transmission.

In another possible design, optionally, the processor 901 may store an instruction 903, and the instruction 903 runs on the processor 901, so that the communication device 900 can execute the method described in the foregoing method embodiment. The instruction 903 may be solidified in the processor 901. In this case, the processor 901 may be implemented by hardware.

In yet another possible design, the communication device 900 may include a circuit, and the circuit may implement the sending or receiving or communication functions in the foregoing method embodiments. The processor and transceiver described in this application can be implemented in integrated circuit (IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (ASIC), printed circuit board ( printed circuit board, PCB), electronic equipment, etc. The processor and transceiver can also be manufactured by various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiment may be a network device, but the scope of the communication device described in this application is not limited to this, and the structure of the communication device may not be limited by FIG. 9. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or, chip system or subsystem;

(2) A set of one or more ICs. Optionally, the set of ICs may also include storage components for storing data and instructions;

(3) ASIC, such as modem (MSM);

(4) Modules that can be embedded in other equipment;

(5) Receivers, wireless devices, handhelds, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

(6) Others, etc.

For the case where the communication device can be a chip or a chip system, refer to the schematic diagram of the chip structure shown in FIG. 10. The chip 1000 shown in FIG. 10 includes a processor 1001 and an interface 1002. The number of processors 1001 may be one or more, and the number of interfaces 1002 may be multiple.

In a possible implementation manner, the processor 1001 is configured to determine the first indication information; the interface 1002 is configured to send the first indication information and receive the first capability information from the second network device.

In another possible implementation manner, the processor 1001 is configured to determine the first capability information according to the first indication information; the interface 1002 is configured to receive the first indication information and send the first capability information.

In another possible implementation manner, the processor 1001 is configured to determine the fourth indication information, and the interface 1002 is configured to send the fourth indication information to the second network device, and receive the first capability information from the second network device. The first capability information is related to the fourth indication information or is determined based on the fourth indication information.

In another possible implementation manner, the processor 1001 is configured to determine the first capability information according to the fourth indication information, and the interface 1002 is configured to receive the fourth indication information from the first network device, and send the first network device to the first network device. One capability information. The first capability information is related to the fourth indication information or is determined based on the fourth indication information.

For the related content of the above four possible implementation manners, please refer to the related content described in FIGS. 2 to 7 above, which will not be detailed here.

Optionally, the chip further includes a memory 1003, and the memory 1003 is used to store necessary program instructions and data for the terminal device.

Those skilled in the art may also understand that various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be construed as going beyond the protection scope of the embodiments of the present application.

The present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer-readable storage medium is executed by a computer, the function of any of the foregoing method embodiments is realized.

This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, 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, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

A person of ordinary skill in the art can understand that the various digital numbers such as first and second involved in the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application, but also indicate a sequence.

The corresponding relationships shown in the tables in this application can be configured or pre-defined. The value of the information in each table is only an example, and can be configured to other values, which is not limited in this application. When configuring the correspondence between the information and each parameter, it is not necessarily required to configure all the correspondences indicated in the tables. For example, in the table in this application, the corresponding relationship shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, and so on. The names of the parameters shown in the titles in the above tables may also adopt other names that can be understood by the communication device, and the values or expressions of the parameters may also be other values or expressions that can be understood by the communication device. When the above tables are implemented, other data structures can also be used, such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.

The pre-definition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-fired.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for processing capability information, characterized in that the method is applicable to a first network device, and includes:

Sending first instruction information to the second network device, where the first instruction information is used to request capability information of the terminal device;

Receiving first capability information from the second network device, where the first capability information includes capability information of the terminal device.
The method of claim 1, wherein:

The first indication information is carried in the next generation NG interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message.
The method according to claim 1 or 2, characterized in that:

The first indication information includes second indication information, and the second indication information includes type indication information and/or capability filtering parameter information;

The type indication information is used to indicate the type of the capability information of the requested terminal device; the capability filtering parameter information is used to indicate the range of the requested capability information of the terminal device.
The method of claim 3, wherein:

The type indication information includes a first type indication and/or a second type indication;

The first type indication is used to indicate the type of capability information of the terminal device corresponding to the RAT type of the radio access technology;

The second type indication is used to indicate the RAT type of the capability information of the terminal device.
The method according to claim 3 or 4, wherein:

The first indication information further includes third indication information, and the third indication information is used to instruct the second network device to request the terminal device for the terminal device through the second indication information when the first condition is satisfied. Ability information.
The method according to any one of claims 1 to 5, characterized in that:

The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.
The method according to any one of claims 1 to 6, characterized in that:

The first network device is an access network device; the second network device is an access network device or a core network device.
The method according to any one of claims 1 to 7, characterized in that:

The first capability information is carried in a next-generation NG interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message.
A method for querying capability information, characterized in that the method is applicable to a first network device, and includes:

Sending fourth indication information to the second network device, where the fourth indication information is used to indicate the capability information of the terminal device supported by the first network device;

Receiving first capability information from the second network device, where the first capability information includes capability information of the terminal device.
The method of claim 9, wherein:

The fourth indication information is carried in the next generation NG interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message, or the secondary base station addition message.
The method according to claim 9 or 10, wherein:

The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.
The method according to any one of claims 9 to 11, wherein before the sending the fourth indication information to the second network device, the method further comprises:

Receiving a capability query message from a second network device, where the capability query message is used to request the first network device to report the capability information of a supported terminal device.
The method according to any one of claims 9 to 12, characterized in that,

The first capability information is carried in a next-generation NG interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message.
A method for querying capability information, characterized in that the method is applicable to a second network device, and includes:

Receiving first indication information from a first network device, where the first indication information is used to request capability information of the terminal device;

Sending first capability information to the first network device, where the first capability information includes capability information of the terminal device.
The method of claim 14, wherein:

The first indication information is carried in the next generation NG interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message.
The method according to claim 14 or 15, characterized in that:

The first indication information includes second indication information, and the second indication information includes type indication information and/or capability filtering parameter information;

The type indication information is used to indicate the type of the capability information of the terminal device, and the capability filtering parameter information is used to indicate the range of the capability information of the terminal device.
The method according to claim 16, wherein the method further comprises:

Sending a capability request message to the terminal device,

Receiving capability information from the terminal device;

Wherein, the capability request message includes second indication information; or

The capability request message further includes fifth indication information, which is determined according to the second indication information and is used to indicate the range of the capability information of the terminal device.
The method according to claim 16 or 17, characterized in that:

The type indication information includes a first type indication and/or a second type indication;

The first type indication is used to indicate the type of capability information of the terminal device corresponding to the RAT type of the radio access technology;

The second type indication is used to indicate the RAT type of the capability information of the terminal device.
The method according to any one of claims 16 to 18, characterized in that,

The first indication information further includes third indication information, and the third indication information is used to instruct the second network device to request the terminal device for the terminal device through the second indication information when the first condition is satisfied. Ability information.
The method according to any one of claims 14 to 19, characterized in that:

The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.
The method according to any one of claims 14 to 20, wherein:

The first network device is an access network device; the second network device is an access network device or a core network device.
The method according to any one of claims 14 to 21, characterized in that,

The first capability information is carried in the NG interface establishment message, or the Xn interface establishment message, or the capability request response message, or the dual connection mode X2 interface establishment message.
A method for querying capability information, characterized in that the method is applicable to a second network device, and includes:

Receiving fourth indication information from the first network device, where the fourth indication information is used to indicate capability information of the terminal device supported by the first network device;

Sending first capability information to the first network device, where the first capability information includes capability information of the terminal device.
The method of claim 23, wherein:

The fourth indication information is carried in the next generation NG interface establishment message, or the initial user equipment message, or the Xn interface establishment message, or the capability request message, or the dual connection mode X2 interface establishment message, or the secondary base station addition message.
The method according to claim 23 or 24, wherein:

The capability information of the terminal device includes one or more of the following: bandwidth information, sounding reference signal switching SRS switching capability information, carrier aggregation capability information, frequency band information, short transmission time interval, and short processing time capability information.
The method according to any one of claims 23 to 25, wherein before the receiving the fourth indication information from the first network device, the method further comprises:

Send a capability query message to the first network device, where the capability query message is used to request the first network device to report supported terminal device capabilities.
The method according to any one of claims 23 to 26, wherein:

The first capability information is carried in a next-generation NG interface establishment message, or an Xn interface establishment message, or a capability request response message, or a dual connection mode X2 interface establishment message, or a secondary base station addition message.
A communication device, characterized in that it comprises a communication interface and a processor;

The processor is configured to determine first indication information, where the first indication information is used to request capability information of the terminal device

The communication interface is configured to send first indication information to a second network device and to receive first capability information from the second network device, where the first capability information includes capability information of the terminal device.
The device of claim 28, wherein:

The first indication information includes second indication information, and the second indication information includes type indication information and/or capability filtering parameter information;

The type indication information is used to indicate the type of the requested capability information of the terminal device; the capability filtering parameter information is used to indicate the range of the requested capability information of the terminal device.
A communication device, characterized in that it comprises a communication interface and a processor;

The processor is configured to determine fourth indication information, where the fourth indication information is used to indicate capability information of the terminal device supported by the first network device;

The communication interface is configured to send the fourth indication information to a second network device; and is configured to receive first capability information from the second network device, where the first capability information includes the capability of the terminal device information.
The device of claim 30, wherein:

The communication interface is also used to receive a capability query message from a second network device, where the capability query message is used to request the first network device to report the capability information of a supported terminal device.
A communication device, characterized in that it comprises a communication interface and a processor;

The communication interface is configured to receive first indication information from a first network device, where the first indication information is used to request capability information of the terminal device;

The processor is configured to determine first capability information according to the first indication information, where the first capability information includes capability information of the terminal device;

The communication interface is also used to send the first capability information to the first network device.
The device of claim 32, wherein:

The first indication information includes second indication information, and the second indication information includes type indication information and/or capability filtering parameter information;

The type indication information is used to indicate the type of capability information of the terminal device;

The capability filtering parameter information is used to indicate the range of the capability information of the terminal device.
A communication device, characterized in that it comprises a communication interface and a processor;

The communication interface is configured to receive fourth indication information from the first network device, where the fourth indication information is used to indicate capability information of the terminal device supported by the first network device;

The processor is configured to determine first capability information according to the fourth indication information, where the first capability information includes capability information of the terminal device;

The communication interface is also used to send the first capability information to the first network device.
The device of claim 34, wherein:

The communication interface is further configured to send a capability query message to the first network device, where the capability query message is used to request the first network device to report the capability information of the supported terminal device.
A computer-readable storage medium, wherein the computer-readable storage medium includes instructions, which when run on a computer, cause the computer to execute the method according to any one of claims 1 to 8, or The method according to any one of claims 9 to 13 is executed, or the method according to any one of claims 14 to 22, or the method according to any one of claims 23 to 29.