Method for reporting capability, terminal device, chip and storage medium

Abstract

The present application provides a method for reporting capabilities, a terminal device, a chip, and a storage medium. The method for reporting capabilities includes: the terminal device determines a target frequency band combination to be reported from the frequency band combinations supported by the terminal device according to first information; the terminal device reports the capability information of the terminal device, and the capability information includes the target frequency band combination; wherein the first information includes one or more of the following: information of the service cell of the terminal device; information of the neighboring cell of the terminal device; and MIMO capability of the frequency band combination supported by the terminal device. The embodiment of the present application can determine the target frequency band combination to be reported from the frequency band combinations supported by the terminal device according to the first information. In addition, the consideration of the above information is conducive to the terminal device reporting more effective frequency band combinations.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method for reporting capabilities, a terminal device, a chip, and a storage medium. Background Art

[0002] In some communication systems (for example, new radio (NR) systems), when a terminal device reports the capabilities of the terminal device, it is necessary to include information about frequency band combinations supported by the terminal device in the reported capability information.

[0003] However, as the capabilities of terminal devices increase, the number of frequency band combinations supported by terminal devices may be large, resulting in the terminal device being unable to report all the frequency band combinations it supports. In this case, how to determine the frequency band combination that the terminal device actually needs to report is an urgent problem to be solved. Summary of the invention

[0004] In view of this, the embodiments of the present application are dedicated to providing a method for reporting capabilities, a terminal device, a chip and a storage medium. The following introduces various aspects involved in the present application.

[0005] In a first aspect, a method for reporting capabilities is provided, comprising: a terminal device determines a target frequency band combination to be reported from frequency band combinations supported by the terminal device according to first information; the terminal device reports capability information of the terminal device, the capability information including the target frequency band combination; wherein the first information includes one or more of the following: information of a serving cell of the terminal device; information of a neighboring cell of the terminal device; and multiple input multiple output (MIMO) capabilities of frequency band combinations supported by the terminal device.

[0006] In a second aspect, a terminal device is provided, wherein the terminal device has the functions of implementing the terminal device in the method design of the first aspect. These functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

[0007] According to a third aspect, a communication system for reporting capabilities is provided, the communication system comprising a terminal device and a network device, the terminal device and the network device being communicatively connected, the terminal device being used to report capability information of the terminal device to the network device, the capability information comprising a target frequency band combination, the target frequency band combination being determined by the terminal device from frequency band combinations supported by the terminal device according to first information; wherein the first information comprises one or more of the following: information of a service cell of the terminal device; information of a neighboring cell of the terminal device; and MIMO capabilities of frequency band combinations supported by the terminal device.

[0008] In a fourth aspect, a terminal device is provided, comprising a transceiver, a processor and a memory. The processor is used to control the transceiver to receive and send signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the terminal device executes the method in the first aspect.

[0009] In a fifth aspect, a communication device is provided. The communication device may be a terminal device in the above method design, or a chip set in the terminal device. The communication device includes: a memory for storing computer executable program code; a communication interface, and a processor, the processor being coupled to the memory and the communication interface. The program code stored in the memory includes instructions, and when the processor executes the instructions, the communication device executes the method executed by the terminal device in the above first aspect or any possible design of the first aspect.

[0010] In a sixth aspect, a communication system is provided, which may include the above-mentioned terminal device and network device. In another possible design, the communication system may also include other devices that interact with the terminal device or network device in the solution provided in the embodiment of the present application.

[0011] In a seventh aspect, a computer program product is provided, the computer program product comprising: a computer program code, when the computer program code is run on a computer, the computer executes the methods in the above aspects.

[0012] In an eighth aspect, a computer-readable medium is provided, wherein the computer-readable medium stores a program code, and when the computer program code is executed on a computer, the computer executes the methods in the above aspects.

[0013] In a ninth aspect, a chip system is provided, which includes a processor for a terminal device to implement the functions involved in the above aspects, for example, to generate, receive, send, or process the data and / or information involved in the above methods. In a possible design, the chip system also includes a memory, which is used to store program instructions and data necessary for the terminal device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0014] The embodiment of the present application determines the target frequency band combination to be reported from the frequency band combinations supported by the terminal device according to one or more of the following information: information of the serving cell of the terminal device, information of the neighboring cells of the terminal device, and MIMO capability of the frequency band combination supported by the terminal device, so that the terminal device can determine the frequency band combination actually required to be reported. In addition, the consideration of the above information is conducive to the terminal device reporting more effective frequency band combinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The following is an example diagram of the system architecture of a wireless communication system to which the embodiments of the present application can be applied.

[0016] Figure 2 A flowchart of a terminal device reporting its capabilities.

[0017] Figure 3 An example diagram of a candidate BC list constructed for an end device.

[0018] Figure 4 Schematic diagram of the process of building a candidate BC list for a terminal device.

[0019] Figure 5 This is an example diagram of the maximum number of BCs that the terminal device is allowed to report based on capability information in different situations.

[0020] Figure 6 A flowchart of a method for reporting capabilities provided in an embodiment of the present application.

[0021] Figure 7 A schematic diagram of a process for a network device to add a secondary cell to a terminal device provided in an embodiment of the present application.

[0022] Figure 8 An example diagram of a service cell and a neighboring cell of a terminal device provided in an embodiment of the present application.

[0023] Fig. 9 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application.

[0024] Fig.10 A schematic diagram of the structure of a communication system provided in an embodiment of the present application.

[0025] Fig.11 A schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0027] Communication system architecture

[0028] Figure 1 1 is an example diagram of a system architecture of a wireless communication system 100 to which an embodiment of the present application can be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area.

[0029] Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0030] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0031] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or the new radio (new radio, NR) system, the long term evolution (long term evolution, LTE) system, the LTE frequency division duplex (frequency division duplex, FDD) system, the LTE time division duplex (time division duplex, TDD) system, etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, etc.

[0032] The terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0033] The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station. The network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or replace with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, auxiliary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communications, a network-side device in a 6G network, and a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form used by the network equipment.

[0034] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0035] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0036] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0037] It should be understood that all or part of the functions of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (eg, a cloud platform).

[0038] Report the capabilities of the terminal device

[0039] In wireless communication systems, in order to coordinate and communicate accurately and efficiently, network devices need to understand the capabilities of terminal devices. Therefore, terminal devices need to report their capabilities to network devices so that network devices can schedule them based on the capabilities reported by terminal devices.

[0040] The capabilities reported by the terminal device may include multiple types, for example, packet data convergence protocol (PDCP) parameters, radio link control (RLC) parameters, medium access control (MAC) parameters, physical layer parameters, radio frequency parameters, measurement and mobility parameters, TDD / FDD difference parameters, feature set (FS) parameters, etc.

[0041] In some embodiments, the RF parameters reported by the terminal device may include a list of frequency bands supported by the terminal device, a list of frequency band combinations (BCs), etc., so that the network device knows which BCs the terminal device can perform carrier aggregation (CA), dual connectivity, etc.

[0042] In some embodiments, the terminal device may report the capabilities of the terminal device based on the capability query message of the network device. In some embodiments, the terminal device may automatically report the capabilities of the terminal device.

[0043] For ease of understanding, the following Figure 2 This section describes the process of a terminal device reporting its capabilities. Figure 2 The description is made by taking the example of a terminal device reporting the capabilities of the terminal device based on a capability query message of a network device. Figure 2 The process of reporting the capabilities of the terminal device shown may include step S210 and step S220.

[0044] In step S210, the network device sends a capability query message to the terminal device.

[0045] The capability query message may be used to request the terminal device to report the capability of the terminal device. In some embodiments, the capability query message may be, for example, a UECapabilityEnquiry message.

[0046] In some embodiments, the capability query message sent by the network device to the terminal device may include filtering information of the terminal device capabilities. The filtering information may be used to filter out some unnecessary terminal device capabilities to reduce the information of the terminal device capabilities reported by the terminal device.

[0047] In some embodiments, the filtering information may include filtering parameters for BC, and the filtering parameters for BC may be used to filter out some BCs that are not necessary for the terminal device to support. In other words, the filtering parameters for BC may be used to instruct the terminal device to report the BC information corresponding to the frequency band contained in the filtering parameters. In this way, when the network device provides filtering parameters for BC, the terminal device only needs to report the BC composed of the frequency band requested by the network device, which reduces the number of BCs reported by the terminal device, thereby reducing the information on the reported terminal device capabilities.

[0048] Taking the LTE system as an example, the filtering parameters for BC may include a requested frequency band (requestedFrequencyBands) parameter. The requestedFrequencyBands parameter may include a frequency band list to instruct the terminal device to provide CA band combinations and non-CA bands (List of frequency bands for which the UE is requested to provide supported CA band combinations and non CA bands) corresponding to the frequency band list and supported by the terminal device.

[0049] As an example, the requestedFrequencyBands parameter is as follows:

[0050] UECapabilityEnquiry-v1180-IEs::=SEQUENCE{

[0051] requestedFrequencyBands-r11 SEQUENCE(SIZE(1..16))OFFreqBandIndicator-r11 OPTIONAL,

[0052] nonCriticalExtension UECapabilityEnquiry-v1310-IEs

[0053] OPTIONAL

[0054] }

[0055] Taking the NR system as an example, the filtering parameters for BC may include a capability request filter (capabilityRequestFilter) parameter, and the capabilityRequestFilter parameter is an optional parameter.

[0056] As an example, the capabilityRequestFilter parameters are as follows:

[0057] UE-CapabilityRAT-RequestList::= SEQUENCE(SIZE(1..maxRAT-CapabilityContainers))OF UE-CapabilityRAT-Request

[0058] UE-CapabilityRAT-Request::= SEQUENCE{

[0059] rat-Type RAT-Type,

[0060] capabilityRequestFilter OCTET STRING OPTIONAL,--Need N ...

[0061] }

[0062] In step S220, the terminal device reports the capability information of the terminal device.

[0063] In some embodiments, the terminal device may first determine which BCs (i.e., target BCs hereinafter) need to be reported to the network device, and then report the capability information of the terminal device to the network device based on the determination result. As an implementation method, the terminal device may first construct a candidate BC list based on the BCs it supports, and then determine the target BC to be reported based on the BCs in the candidate BC list, so as to report the target BC in the capability information.

[0064] Combine the following Figures 3 to 5 This section describes how the terminal device determines the target BC to be reported.

[0065] In some embodiments, when constructing the candidate BC list, the terminal device may generate the candidate BC list in a certain order based on the provisions of the current protocol. For example, when constructing the candidate BC list, the terminal device may first consider the non-CA band information, then the BC of two downlinks and one uplink (2DL+1UL BC), and finally the BC of other CA. The candidate BC list finally generated may be as follows: Figure 3 As shown. Figure 3 In the example, the number of BCs in the candidate BC list finally generated by the terminal device is n.

[0066] In some embodiments, the BC of other CA may also be referred to as a BC other than two downlinks and one uplink, ie, a non-2DL+1UL BC.

[0067] As mentioned above, when sending a capability query message, the network device may choose to carry a filter parameter for BC. Therefore, depending on whether the capability query message carries a filter parameter for BC, the terminal device may respond in different ways when constructing a BC list.

[0068] Figure 4 From the example diagram of the process of constructing a candidate BC list for a terminal device, it can be seen that in this example, when constructing a BC list, the terminal device can perform different construction processes according to whether the capability query message carries filtering parameters for BC. For example, when the capability query message does not carry filtering parameters for BC, the candidate BC list constructed by the terminal device may include non-CA frequency band information, 2DL+1UL BC, and BC of other CAs; or, when the capability query message carries filtering parameters for BC, the candidate BC list constructed by the terminal device may include non-CA frequency band information, 2DL+1UL BC filtered based on filtering parameters (2DL+1UL BC filter requested Frequency Bands), and BC of other CAs filtered based on filtering parameters (prioritized all other CA BC, in the order of requested Frequency Bands).

[0069] In some embodiments, after the terminal device generates the candidate BC list, the candidate BCs in the candidate BC list can be filled into the specified position in the capability information of the terminal device. However, when the terminal device reports capability information to the network device, the capability information has a limit on the maximum number of BCs that the terminal device can report.

[0070] In different situations, the capability information may have different restrictions on the maximum number of BCs that the terminal device can report. For example, when the capability query message sent by the network device is different (for example, whether it contains filtering parameters for BC), the maximum number of BCs allowed to be reported by the terminal device may also be different. Figure 5 Introduce this.

[0071] Figure 5 This is an example diagram of the limitation of the maximum number of BCs that can be reported by the terminal device under different circumstances provided by the embodiment of the present application. Figure 5 As shown, according to the content of the capability query message sent by the network device, for example, whether there are filtering parameters for BC (such as requestedFrequencyBands parameter, capabilityRequestFilter parameter) and / or whether there are format simplification parameters (such as requestedReducedFormat parameter), the reporting of BC may include three situations (format simplification parameters exist, format simplification parameters do not exist but filtering parameters for BC exist, and format simplification parameters do not exist and filtering parameters for BC do not exist), and the maximum number of BCs allowed to be reported by the terminal device corresponding to these three situations is different. For example, the maximum number of BCs allowed to be reported by the terminal device corresponding to the situation where there are format simplification parameters is 384, the maximum number of BCs allowed to be reported by the terminal device corresponding to the situation where there are no format simplification parameters but filtering parameters for BC exist is 384, and the maximum number of BCs allowed to be reported by the terminal device corresponding to the situation where there are no format simplification parameters but filtering parameters for BC exist is 128.

[0072] Figure 5 The example is introduced using the LTE system as an example, but the embodiments of the present application are not limited to this. The solution can also be applied to the terminal device capability reporting in the NR system, or the terminal device capability reporting in other communication systems, such as future communication systems. As a specific example, in the NR system, when the capability query message sent by the network device does not carry the capabilityRequestFilter parameter, the embodiments of the present application are still applicable.

[0073] At present, with the enhancement of terminal device capabilities, the number of BCs supported by terminal devices may be large. This is because the number of frequency bands that terminal devices can support increases with the enhancement of terminal device capabilities, resulting in the number of BCs supported by terminal devices may explode. In this way, the number of BCs supported by the terminal device may be greater than the maximum number of BCs allowed to be reported by the terminal device. For example, the total number of candidate BCs determined by the terminal device may be greater than the maximum number of BCs that can be filled in the capability information of the terminal device, resulting in the terminal device may not be able to report all the BCs it supports, especially when the capability query message sent by the network device does not contain filtering parameters for BC, this possibility will be greatly increased. If this happens, how to determine the BC that the terminal device actually needs to report is an urgent problem to be solved. If the terminal device reports improperly (for example, some key BCs are missed), it may affect the network device to configure CA for the terminal device, thereby affecting the uplink and downlink rates of the terminal device and affecting the user experience.

[0074] In order to solve the above problems, the embodiments of the present application provide a method for reporting capabilities, a terminal device, a chip and a storage medium, so that the terminal device can determine the target BC to be reported from the BC supported by the terminal device according to the first information. In addition, the consideration of the first information is also conducive to the terminal device reporting more valid BCs.

[0075] The technical solution of the present application is described in detail below with reference to the accompanying drawings.

[0076] Figure 6 A flowchart of a method for reporting capabilities provided in an embodiment of the present application. Figure 6 The method shown is described from the perspective of the interaction between the terminal device and the network device. The terminal device and the network device can be, for example, Figure 1 The terminal device 120 and the network device 110 are shown. Figure 6 The method shown may include step S610 and step S620, which are described below.

[0077] In step S610, the terminal device determines a target BC to be reported from BCs supported by the terminal device according to the first information.

[0078] In the embodiment of the present application, the BC supported by the terminal device may be determined by the terminal device according to the information of the frequency bands supported by the terminal device. For example, the frequency bands supported by the terminal device include frequency band 1 (B1), frequency band 2 (B2) and frequency band 3 (B3), then the BC supported by the terminal device may be one or more of the following: B1, B2, B3, B1+B2, B1+B3, B2+B3, B1+B2+B3.

[0079] In some embodiments, the terminal device may support multiple BCs.

[0080] In some embodiments, the BC supported by the terminal device may include different types. For example, the BC supported by the terminal device may include non-CA frequency band information and BC corresponding to CA. In some embodiments, the BC corresponding to CA may also include different types, for example, 2DL+1UL BC, 3DL BC, 2DL+2UL BC, etc. Among them, 3DL BC may refer to BC of three downlinks, and 2DL+2UL BC may refer to BC of two downlinks and two uplinks. It should be noted that, in some embodiments, the BC corresponding to CA can be divided into 2DL+1UL BC and non-2DL+1UL BC. In this case, all BC corresponding to CA except 2DL+1UL BC can be understood as non-2DL+1UL BC, such as the above-mentioned 3DL BC, 2DL+2UL BC, etc.

[0081] In some embodiments, the target BC to be reported is part or all of the BCs supported by the terminal device. For example, if the number of BCs supported by the terminal device is less than or equal to the maximum number of BCs allowed to be reported by the terminal device, then the target BC to be reported may be all BCs supported by the terminal device. Alternatively, if the number of BCs supported by the terminal device is greater than the maximum number of BCs allowed to be reported by the terminal device, then the target BC to be reported may be part of the BCs supported by the terminal device.

[0082] In some embodiments, the target BC to be reported is determined by the terminal device from the BC supported by the terminal device according to the first information. The first information may include one or more of the following: information of the serving cell of the terminal device, information of the neighboring cell of the terminal device, and MIMO capability of the BC supported by the terminal device.

[0083] In some embodiments, the information of the serving cell of the terminal device may include frequency band information of the serving cell and / or signal quality corresponding to the serving cell.

[0084] In some embodiments, the information of the neighboring cells of the terminal device may include frequency band information of the neighboring cells and / or signal quality corresponding to the neighboring cells.

[0085] In some embodiments, the frequency band information of the serving cell and / or the frequency band information of the neighboring cell may refer to information of the frequency band to which the serving cell or the neighboring cell belongs, for example, an identifier of the frequency band to which the serving cell or the neighboring cell belongs (e.g., band 1, band 2, etc.).

[0086] The embodiment of the present application does not limit the method for obtaining the information of the neighboring cell (for example, the frequency band information of the neighboring cell). As an implementation method, if the terminal device is an idle terminal device, it can obtain the information of the neighboring cell from the cell system information broadcast by the network device. As another implementation method, if the terminal device is a connected terminal device, it can obtain the information of the neighboring cell from the measurement information configured by the network device.

[0087] In some embodiments, the neighboring cell of the terminal device may include an inter-frequency neighboring cell of the terminal device. In some embodiments, the inter-frequency neighboring cell may refer to a neighboring cell in a frequency band different from that of the serving cell.

[0088] In some embodiments, the signal quality corresponding to the serving cell and / or the signal quality corresponding to the neighboring cell may include the signal strength corresponding to the serving cell or the neighboring cell. For example, the stronger the signal strength of the cell, the better the signal quality corresponding to the cell.

[0089] The embodiment of the present application does not specifically limit the information or parameters indicating the signal quality corresponding to the cell. Exemplarily, the reference signal received power (RSRP) of the cell can be used for indication, or the reference signal received quality (RSRQ) of the cell, the signal to interference plus noise ratio (SINR) corresponding to the cell and other parameters can be used for indication.

[0090] In some embodiments, determining the target BC to be reported from the BC supported by the terminal device according to the first information may refer to selecting the target BC to be reported from the candidate BC list of the terminal device according to the first information. In some embodiments, determining the target BC to be reported from the BC supported by the terminal device according to the first information may refer to constructing a candidate BC list of the terminal device according to the first information, and selecting the target BC to be reported from the candidate BC list of the terminal device.

[0091] In step S620, the terminal device reports the capability information of the terminal device to the network device.

[0092] The capability information of the terminal device may be used by the terminal device to report the capability of the terminal device to the network device. In some embodiments, the capability information of the terminal device may be, for example, UECapabilityInformation.

[0093] In some embodiments, the capability information of the terminal device may include the target BC determined in step S610, so that the network device knows on which BCs the terminal device can perform functions such as CA and dual connectivity.

[0094] In some embodiments, after the network device receives the capability information reported by the terminal device, it can select one or some BCs from the target BCs contained in the capability information to perform one or more of the following operations based on the selected BCs: configure CA for the terminal device; configure dual connectivity for the terminal device; add a secondary cell for the terminal device, etc.

[0095] The embodiment of the present application does not limit the manner in which the network device selects a BC from the target BC. For example, the network device may randomly select a BC from the target BC to configure CA, dual connectivity, or add a secondary cell to the terminal device. Alternatively, the network device may sequentially select a BC from the target BC in accordance with the order of the target BCs reported by the terminal device to configure CA, dual connectivity, or add a secondary cell to the terminal device.

[0096] In some embodiments, when the network device selects a BC from the target BC, in addition to considering the target BC reported by the terminal device, other information may also be considered. For example, the network device may combine the BC or measurement information reported by other terminal devices, or the network device may combine other information such as cell information, and comprehensively consider the target BC information reported by the terminal device, and select BC from the target BC to configure CA, dual connection for the terminal device, or add a secondary cell for the terminal device, etc.

[0097] In some embodiments, the target BC determined by the terminal device can be understood as the radio frequency parameters of the terminal device, and the terminal device can report the radio frequency parameters to the network device so that the network device can schedule the terminal device according to the radio frequency parameters. However, the embodiments of the present application are not limited to this. In some embodiments, the capability information of the terminal device may also include other information, for example, PDCP parameters, RLC parameters, MAC parameters, physical layer parameters, measurement and mobility parameters, TDD / FDD difference parameters, FS parameters, etc.

[0098] In an embodiment of the present application, the terminal device may report the capability information of the terminal device to the network device in various situations, and the embodiment of the present application is not limited to this. For example, the terminal device may report the capability information of the terminal device based on a capability query message sent by the network device. Alternatively, the terminal device may report the capability information of the terminal device to the network device based on the related indication signaling of the reporting capability information or the reporting BC information sent by the network device. Alternatively, the terminal device may automatically (or autonomously) report the capability information of the terminal device to the network device.

[0099] As a specific implementation, the network device may send a capability query message to the terminal device. After receiving the capability query message, the terminal device may determine the target BC to be reported according to the content of the capability query message and send the target BC to the network device. In some embodiments, the capability query message may be, for example, a UECapabilityEnquiry message.

[0100] In some embodiments, the capability query message may include filtering information of terminal device capabilities, such as filtering parameters for BC, format reduction parameters, etc. For details of the filtering information of terminal device capabilities included in the capability query message, please refer to the above text and will not be repeated here.

[0101] The embodiment of the present application can determine the target BC to be reported from the BC supported by the terminal device according to the first information. In addition, the consideration of the first information is conducive to the terminal device reporting more valid BCs, which is introduced below.

[0102] For example, in the case where the first information includes the frequency band information of the service cell or the neighboring cell, the embodiment of the present application uses the frequency band to which the service cell belongs and the frequency band to which the neighboring cell belongs as the filtering conditions for the frequency band of the reported BC, which can ensure that all reported BCs are valid BCs. This is because, when the network device configures CA for the terminal device, it usually configures the intra-band CA of the service cell or the inter-band CA of the service cell and the neighboring cell. Based on this, the priority reporting of the BC including the frequency band of the service cell and the neighboring cell can ensure that the reported BC is valid, which is conducive to improving the uplink and downlink rates of the terminal device.

[0103] Alternatively, in the case where the first information includes the signal quality of the service cell or the neighboring cell, the embodiment of the present application can give priority to reporting the BC of the frequency band corresponding to the cell with good signal quality, so that the BC corresponding to the service cell and the neighboring cell with good signal quality can be reported as much as possible, increasing the possibility that the terminal device will be configured with CA as early as possible. This is because the network device usually adds a secondary cell after receiving a measurement report from the terminal device. The measurement report indicates that the cell signal quality on the carrier frequency used for the secondary cell is higher than a certain threshold. If the terminal device has not reported a certain BC before, the network device will not add the secondary cell corresponding to the BC to the terminal device. Based on this, giving priority to reporting the BC of the frequency band corresponding to the cell with good signal quality can increase the possibility that the terminal device will be configured with CA as early as possible.

[0104] Below Figure 7Taking as an example, the process of a network device adding a secondary cell to a terminal device is introduced. Assuming that the frequency band to which the current service cell of the terminal device belongs is B1, and the frequency band to which the neighboring cell 2 belongs is B2, during the measurement process, if the terminal device measures that the neighboring cell 2 meets the measurement event reporting condition (for example, meets the A4 event), the terminal device reports the measurement event to the network device, so that the network device adds the secondary cell according to the measurement event reported by the terminal device. If the terminal device does not report the BC of the combination of B1+B2 to the network device before the terminal device reports the measurement event, then even if the neighboring cell 2 meets the A4 event, the network device will not add the secondary cell (neighboring cell 2) to the terminal device. In some embodiments, the condition for reporting the A4 event is that the cell signal is higher than a specific threshold. In the embodiment of the present application, the BC with better signal quality is reported to the network device in priority, which can increase the possibility of the terminal device being configured with CA as early as possible.

[0105] Alternatively, in the case where the first information includes the MIMO capability of the BC, the embodiment of the present application can give priority to reporting the BC with strong MIMO capability, so that after the terminal device is configured with CA, it can obtain higher rate and reliability under the same conditions. This is because MIMO technology can improve the capacity and reliability of the channel without increasing the bandwidth and transmission power.

[0106] The embodiments of the present application do not limit the application scenarios in which the terminal device needs to report the capabilities of the terminal device to the network device. For example, the terminal device can report the capabilities of the terminal device to the network device when accessing the network, or the terminal device can report the capabilities of the terminal device to the network device after switching cells, and so on.

[0107] In some embodiments, the target frequency band combination is determined from BCs supported by the terminal device based on a first rule.

[0108] In some embodiments, the first rule is associated with the first information. That is, the first rule may be a rule formulated according to the first information. For example, the first rule may be associated with the frequency band corresponding to the serving cell and / or the neighboring cell; or the first rule may be associated with the signal quality corresponding to the serving cell and / or the neighboring cell; or the first rule may be associated with the MIMO capability of the BC, etc.

[0109] In some embodiments, the first rule may include one or more of the following: first report the BC containing the frequency band corresponding to the service cell, and then report the BC containing the frequency band corresponding to the neighboring cell; first report the BC containing the frequency band corresponding to the cell with good signal quality, and then report the BC containing the frequency band corresponding to the cell with poor signal quality; first report the BC with strong MIMO capability, and then report the BC with weak MIMO capability; first report the BC corresponding to intra-band CA, and then report the BC corresponding to inter-band CA; and first report the BC containing a small number of frequency bands, and then report the BC containing a large number of frequency bands.

[0110] Taking the example of first reporting the BC including the frequency band corresponding to the serving cell and then reporting the BC including the frequency band corresponding to the neighboring cell, the BC including the frequency band to which the serving cell belongs may be reported first, and then the BC including the frequency band to which the neighboring cell belongs. Taking the example of the frequency band to which the serving cell 1 belongs is B1, and the frequency bands to which the neighboring cell 2 and the neighboring cell 3 belong are B2 and B3 respectively, the BC including B1 may be reported first, and then the BC including B2 and / or B3 may be reported.

[0111] Taking the example of first reporting the BC of the frequency band corresponding to the cell with good signal quality and then reporting the BC of the frequency band corresponding to the cell with poor signal quality, the BC of the frequency band to which the cell with good signal quality (such as the neighboring cell) belongs can be reported first, and then the BC of the frequency band to which the cell with poor signal quality (such as the neighboring cell) belongs can be reported. Taking the frequency bands to which neighboring cell 2 and neighboring cell 3 belong to B2 and B3 respectively as an example, assuming that the signal quality of neighboring cell 2 is better than the signal quality of neighboring cell 3, the BC containing B2 can be reported first, and then the BC containing B3 can be reported.

[0112] In some embodiments, first reporting the BC corresponding to the frequency bands of cells with good signal quality, and then reporting the BC corresponding to the frequency bands of cells with poor signal quality, may mean that the total signal quality of one or more frequency bands corresponding to the BC reported first is better than the total signal quality of one or more frequency bands corresponding to the BC reported later. For example, the frequency band corresponding to the service cell 1 of the terminal device is B1, the frequency band corresponding to the neighboring cell 2 is B2, the frequency band corresponding to the neighboring cell 3 is B3, and the frequency band corresponding to the neighboring cell 4 is B4. The frequency band corresponding to BC1 includes B1, B2 and B3 (BC1=B1+B2+B3), and the frequency band corresponding to BC2 includes B1, B3 and B4 (BC2=B1+B3+B4). Among them, the signal quality of the neighboring cell 2 is higher than the signal quality of the neighboring cell 4. Then, when reporting, BC1 may be reported first, and then BC2.

[0113] Taking the example of reporting the BC with strong MIMO capability first and then reporting the BC with weak MIMO capability, assuming that the frequency bands of neighboring cell 2 and neighboring cell 3 are B2 and B3 respectively, and the MIMO capability of neighboring cell 2 is greater than the MIMO capability of neighboring cell 3, the BC including B2 can be reported first, and then the BC including B3.

[0114] In some embodiments, the MIMO capability of a BC may be determined based on the number of MIMO layers corresponding to the frequency bands in the BC. In other words, the MIMO capability of a BC supported by a terminal device may be determined based on the number of MIMO layers corresponding to the frequency bands in the BC.

[0115] In some embodiments, the number of MIMO layers corresponding to a frequency band in a BC is associated with the carrier (or cell) corresponding to the frequency band of the BC. For example, when a frequency band in a BC corresponds to a carrier, the number of MIMO layers corresponding to the frequency band in the BC may refer to the number of MIMO layers corresponding to the carrier. Alternatively, when a frequency band in a BC corresponds to multiple carriers, the number of MIMO layers corresponding to the frequency band in the BC may be associated with the number of MIMO layers corresponding to the multiple carriers, for example, the number of MIMO layers corresponding to the frequency band in the BC may refer to the sum of the number of MIMO layers corresponding to the multiple carriers.

[0116] In some embodiments, the MIMO capability of a BC may refer to the downlink MIMO capability corresponding to the BC and / or the uplink MIMO capability corresponding to the BC. For example, the MIMO capability of a BC may be determined based on the number of downlink MIMO layers corresponding to the frequency band in the BC; and / or, the MIMO capability of a BC may be determined based on the number of uplink MIMO layers corresponding to the frequency band in the BC, etc.

[0117] Taking the example of first reporting the BC corresponding to intra-band CA and then reporting the BC corresponding to inter-band CA, the BC corresponding to the intra-band CA of the serving cell may be reported first, and then the BC corresponding to the inter-band CA between the serving cell and the neighboring cell may be reported.

[0118] Taking the example of first reporting the BC containing a small number of frequency bands and then reporting the BC containing a large number of frequency bands, assuming that when reporting the BC containing the frequency band to which the service cell belongs, the BC containing a small number of frequency bands can be reported first, and then the BC containing a large number of frequency bands; or, assuming that when reporting the BC corresponding to the CA between the frequency bands of the service cell and the neighboring cell, the BC containing a small number of frequency bands can be reported first, and then the BC containing a large number of frequency bands, and so on.

[0119] In some embodiments, the order of reporting mentioned in the first rule (for example, first reporting the BC containing the frequency band corresponding to the serving cell, and then reporting the BC containing the frequency band corresponding to the neighboring cell) can be understood as sorting the BCs supported by the terminal device according to the first information, and the BCs in the first order can be reported to the network device first. In other words, the order of reporting can be related to the priority, and the BCs with high priority can be reported to the network device first. For example, the priority of the BC containing the frequency band corresponding to the serving cell is higher than the priority of the BC containing the frequency band corresponding to the neighboring cell. In this case, the BC containing the frequency band corresponding to the serving cell can be reported first, and then the BC containing the frequency band corresponding to the neighboring cell can be reported. Similarly, the priority of the BC containing the frequency band corresponding to the cell with good signal quality can be higher than the priority of the frequency band corresponding to the cell with poor signal quality, the priority of the BC with strong MIMO capability can be higher than the priority of the BC with weak MIMO capability, the priority of the BC corresponding to the intra-band CA can be higher than the priority of the BC corresponding to the inter-band CA, the priority of the BC containing a small number of frequency bands can be higher than the priority of the BC containing a large number of frequency bands, etc.

[0120] In some embodiments, the target BC may be determined according to one of the first rules. In some embodiments, the target BC may be determined according to multiple (multiple) rules in the first rule. For example, the target BC may be determined based on the rule of first reporting the BC containing the frequency band corresponding to the serving cell and then reporting the BC containing the frequency band corresponding to the neighboring cell and the rule of first reporting the BC with strong MIMO capability and then reporting the BC with weak MIMO capability; or, the target BC may be determined based on all the contents of the first rule listed above, etc.

[0121] It should be understood that when the embodiment of the present application determines the target BC according to multiple rules in the first rule, the multiple rules can be a combination of any two or more of the first rules. That is to say, the multiple rules in the first rule can be combined arbitrarily and are not limited to the specific examples listed below.

[0122] It should also be understood that when the target BC is determined according to multiple rules in the first rule, the embodiment of the present application does not specifically limit the priority of the multiple rules in the first rule. For example, when the first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and first reporting the frequency band combination including the frequency band corresponding to the cell with good signal quality, and then reporting the frequency band combination including the frequency band corresponding to the cell with poor signal quality, the selection can be made according to the service cell and the neighboring cell, and then according to the signal quality; of course, the selection can also be made according to the signal quality first, and then according to the service cell and the neighboring cell.

[0123] As a preferred implementation scheme, when determining the target BC according to multiple rules in the first rule, the embodiment of the present application can determine the target BC according to multiple rules according to the following priority: for example, first select according to the service cell and the neighboring cell, then select according to the signal quality, then select according to the strength of the MIMO capability, then select according to the intra-band carrier aggregation and the inter-band carrier aggregation, and finally select according to the number of included frequency bands; or, first select according to the service cell and the neighboring cell, then select according to the strength of the MIMO capability, then select according to the signal quality, then select according to the intra-band carrier aggregation and the inter-band carrier aggregation, and finally select according to the number of included frequency bands; or, first select according to the service cell and the neighboring cell, then select according to the intra-band carrier aggregation and the inter-band carrier aggregation, then select according to the signal quality, then select according to the strength of the MIMO capability, and finally select according to the number of included frequency bands, etc.

[0124] As an example, the first rule may include: first report the BC including the frequency band corresponding to the serving cell, then report the BC including the frequency band corresponding to the neighboring cell, and among the BC including the frequency band corresponding to the neighboring cell, first report the BC including the frequency band corresponding to the neighboring cell with good signal quality, then report the BC including the frequency band corresponding to the neighboring cell with poor signal quality. In some embodiments, if the BC including the frequency band corresponding to the neighboring cell includes the BC including the frequency band corresponding to the neighboring cell with the same signal quality, the first rule may also include: first report the BC with strong MIMO capability, then report the BC with weak MIMO capability.

[0125] As another example, the first rule may include: first reporting the BC including the frequency band corresponding to the serving cell, and then reporting the BC including the frequency band corresponding to the neighboring cell, and among the BCs of the frequency bands corresponding to the neighboring cell, first reporting the BC with strong MIMO capability, and then reporting the BC with weak MIMO capability. In some embodiments, if the BCs of the frequency bands corresponding to the neighboring cells include BCs with the same MIMO capability, the first rule may also include: first reporting the BC including the frequency band corresponding to the neighboring cell with good signal quality, and then reporting the BC including the frequency band corresponding to the neighboring cell with poor signal quality.

[0126] As another example, the first rule may include: first report the BC containing the frequency band corresponding to the serving cell, then report the BC containing the frequency band corresponding to the neighboring cell, and among the BCs of the frequency bands corresponding to the neighboring cell, first report the BC containing a small number of frequency bands, then report the BC containing a large number of frequency bands. For example, first report the BC containing two frequency bands, then report the BC containing three frequency bands, etc.

[0127] In some embodiments, the determination of the target BC may be triggered based on a first condition.

[0128] In some embodiments, the first condition may include one or more of the following: the capability query message received by the terminal device does not contain filtering parameters for BC; and the number of BCs supported by the terminal device is greater than the maximum number of BCs allowed to be reported by the terminal device. In some embodiments, when the capability query message received by the terminal device does not contain filtering parameters for BC, the number of BCs that the terminal device needs to report is large, which may cause the number of BCs that the terminal device needs to report to be greater than the maximum number of BCs allowed to be reported by the terminal device, so that the target BC can be determined based on the first information.

[0129] In some embodiments, the target BC mentioned in the embodiments of the present application may include one or more of the following: 2DL+1UL BC, and non-2DL+1UL BC. As an example, the target BC may refer to 2DL+1UL BC. In this case, the terminal device may determine which 2DL+1UL BC (i.e., target BC) needs to be reported to the network device based on the first information. As another example, the target BC may refer to non-2DL+1UL BC. In this case, the terminal device may determine which non-2DL+1UL BC needs to be reported to the network device based on the first information. As another example, the target BC may refer to 2DL+1UL BC and non-2DL+1UL BC. In this case, the terminal device may determine which 2DL+1UL BC and non-2DL+1UL BC need to be reported to the network device based on the first information.

[0130] As an implementation manner, the terminal device may determine which 2DL+1UL BCs to report to the network device and / or which non-2DL+1UL BCs to report according to the frequency band information of the serving cell and / or the frequency band information of the neighboring cell.

[0131] As an implementation manner, the terminal device may determine which 2DL+1UL BCs to report to the network device first and / or which non-2DL+1UL BCs to report according to the signal quality of the cell and / or the MIMO capability of the BC.

[0132] For ease of understanding, several specific embodiments are given below. The following embodiments describe how a terminal device determines a target BC when the capability query message sent by a network device does not carry filtering parameters for the BC. It should be noted that this specific embodiment is only used for example and is not intended to limit the technical solution of the present application. It should also be noted that the embodiments listed below can be combined in part or in whole. For example, embodiment one can be used in combination with embodiment two, embodiment one can be used in combination with embodiment three, embodiment two can be used in combination with embodiment three, etc., as long as the technical personnel in this field can simply think of the combination method. Specifically, for example, the methods of embodiments two to four can be used in embodiment one to determine which 2DL+1UL BCs to report; or, the methods of embodiments two to four can be used in embodiment one to determine which non-2DL+1UL BCs to report, etc.

[0133] Embodiment 1

[0134] After the terminal device resides in the serving cell, it can obtain the information of the neighboring cells of the terminal device, so that the target BC can be determined (the candidate BC list can be selected) based on the information of the serving cell and the neighboring cells. As an implementation method, the terminal device can use the frequency band to which the serving cell belongs and the frequency band to which the hetero-frequency neighboring cell belongs as the filtering condition of the BC (that is, the frequency band information of the serving cell and the hetero-frequency neighboring cell can be used as the filtering parameter) to determine which frequency bands need to be reported to the network device.

[0135] Furthermore, the terminal device may filter according to the first rule to determine the target BC that needs to be reported to the network device, and the target BC may be part or all of the BCs corresponding to the frequency bands to which the serving cell and the hetero-frequency neighboring cell belong.

[0136] Specifically, the sorting may be performed according to a first rule (for example, the sorting may be performed according to the order of the following rules), and the sorting of the first rule may include:

[0137] Rule 1: If necessary, fill in the non-CA frequency band information.

[0138] Optionally, when one or more of the following conditions are met, all non-CA frequency band information may be included regardless of whether the terminal device supports CA (include all non-CA bands, regardless of whether UE supports carrier aggregation, only):

[0139] Case (1) if the UE includes ue-Category-v1020 (ie indicating category 6 to 8)

[0140] Case (2) if for at least one of the non-CA bands, the UE supports more MIMO layers with TM9 and TM10 than implied by the UE category;

[0141] Case (3) if the UE supports TM10 with one or more CSI processes;

[0142] Case (4): if the UE supports 1024QAM in DL.

[0143] Rule 2: Fill in the 2DL+1UL BC of the frequency band to which the serving cell belongs.

[0144] For example, 2DL+1UL BC of intra-band CA of the frequency band to which the serving cell belongs may be filled in; or 2DL+1UL BC of inter-band CA of the frequency band to which the serving cell belongs and the frequency band to which the inter-frequency neighbor cell belongs may be filled in.

[0145] Rule 3: Fill in the 2DL+1UL BC of the frequency band to which the inter-frequency neighboring cell belongs.

[0146] For example, 2DL+1UL BC of intra-band CA of the frequency band to which the inter-frequency neighbor cell belongs may be filled in; or 2DL+1UL BC of inter-band CA of the frequency band to which different inter-frequency cells belong may be filled in.

[0147] Rule 4: Fill in the BC other than 2DL+1UL BC of the intra-band CA of the frequency band to which the serving cell belongs.

[0148] Rule 5: Fill in the non-2DL+1ULBC of inter-band CA between the frequency band to which the serving cell belongs and the frequency band to which the inter-frequency neighboring cell belongs.

[0149] Embodiment 2

[0150] In some embodiments, for multiple neighboring cells, there may be multiple inter-frequency bands (there are multiple neighboring cells with inter-frequency bands). Due to the limitation of the maximum number of BC reports, it may be impossible to report all non-2DL+1UL BCs of the inter-band CA of the serving cell and the neighboring cell in Embodiment 1 to the network device. In this case, the following optional schemes can be used to sort and determine the target BC to be reported to the network device.

[0151] Rule 5.1: Sort the signal strengths of the frequency bands to which the inter-frequency neighboring cells belong.

[0152] Combine the following Figure 8 See Figure 8 , assuming that the terminal device resides in cell 1 (serving cell), the frequency band of the serving cell is B1, and there are four neighboring cells near the serving cell (the four neighboring cells are neighboring cells 2 to 5), among which the frequency band of neighboring cell 2 is B1, the frequency band of neighboring cell 3 is B2, the frequency band of neighboring cell 4 is B3, and the frequency band of neighboring cell 5 is B4. In this case, the BC of CA between the frequency bands of the serving cell and the neighboring cells supported by the terminal device may include B1+B2, B1+B3, B1+B4, B1+B2+B3, B1+B2+B4, B1+B3+B4, B1+B2+B3+B4.

[0153] In this scenario, the signal strengths of the frequency bands to which the inter-frequency neighboring cells (neighboring cell 3 to neighboring cell 5) belong can be ranked. Table 1 below shows the signal strengths of the frequency bands to which each cell belongs.

[0154] Table 1

[0155] Community Frequency band to which the cell belongs Same frequency / different frequency RSRP Cell 1 (serving cell) B1 Same frequency -85 Neighboring cell 2 B1 Same frequency -86 Neighboring cell 3 B2 Different frequency -90 Neighborhood 4 B3 Different frequency -95 Neighborhood 5 B4 Different frequency -97

[0156] It can be seen from Table 1 that the signal strengths of the inter-frequency neighboring cells are: neighboring cell 3 (B2)>neighboring cell 4 (B3)>neighboring cell 5 (B4).

[0157] As an implementation method, when determining the target BC according to the signal strength of the inter-frequency neighboring cell, the BC with a small number of frequency bands can be reported first, and when reporting the BC with the same number of frequency bands, the BC with a high signal strength of the inter-frequency neighboring cell can be reported first.

[0158] Taking Table 1 as an example, in the first step, the BC of 2 frequency band combinations can be reported first, that is, the BC of the B1+B2 combination can be filled into the capability information first, followed by the BC of the B1+B3 combination, and finally the BC of the B1+B4 combination. In the second step, the BC of 3 frequency band combinations can be reported, that is, the BC of the B1+B2+B3 combination can be filled into the capability information first, followed by B1+B2+B4, and finally B1+B3+B4. In the third step, the BC of 4 frequency band combinations can be reported, that is, the BC of the B1+B2+B3+B4 combination can be filled into the capability information.

[0159] Embodiment 3

[0160] In some embodiments, for multiple neighboring cells, there may be multiple inter-frequency bands (there are multiple neighboring cells with inter-frequency bands). Due to the limitation of the maximum number of BC reports, it may be impossible to report all non-2DL+1UL BCs of the inter-band CA of the serving cell and the neighboring cell in Embodiment 1 to the network device. In this case, the following optional schemes can be used to sort and determine the target BC to be reported to the network device.

[0161] Rule 5.2: Sort the number of downlink MIMO layers of BC.

[0162] Still combined Figure 8 In this scenario, the number of downlink MIMO layers of BC can be ranked. Table 2 below shows the number of downlink MIMO layers of BC, where Table 2 is based on an example in which each frequency band instance has only one carrier.

[0163] Table 2

[0164] BC\DL MIMO B1 B2 B3 B4 B1+B2 4 2 - - B1+B3 4 - 4 - B1+B4 4 - - 8 B1+B2+B3 4 2 2 - B1+B2+B4 4 2 - 4 B1+B3+B4 4 - 4 4 B1+B2+B3+B4 4 2 2 4

[0165] As an implementation manner, when determining the target BC according to the number of downlink MIMO layers of the BC, the BC with fewer frequency bands may be reported first, and when reporting BCs with the same number of frequency bands, the BC with more downlink MIMO layers may be reported first.

[0166] Taking Table 2 as an example, in the first step, the BC of 2 frequency band combinations can be reported first, that is, the BC of the B1+B4 combination can be filled into the capability information first, followed by the BC of the B1+B3 combination, and finally the BC of the B1+B2 combination. In the second step, the BC of 3 frequency band combinations can be reported, that is, the BC of the B1+B3+B4 combination can be filled into the capability information first, followed by B1+B2+B4, and finally B1+B2+B3. In the third step, the BC of 4 frequency band combinations can be reported, that is, the BC of the B1+B2+B3+B4 combination can be filled into the capability information.

[0167] Table 3 takes the example that the frequency band entity of B1 includes one carrier, and the frequency band entities of B2 and B3 include two carriers respectively. In this case, the MIMO capability of BC may be the sum of the number of MIMO layers of the carriers included in the frequency band entity.

[0168] Table 3

[0169] BC B1-cc1 B2-cc1 B2-cc2 B3-cc1 B3-cc2 (B1+B2) 4 2 4 (B1+B3) 4 4 4

[0170] Taking Table 3 as an example, when reporting BC of two frequency band combinations, since the sum of the number of MIMO layers of the carriers included in the BC of the B1+B3 combination is greater than the sum of the number of MIMO layers of the carriers included in the BC of the B1+B2 combination, the BC of the B1+B3 combination can be filled in the capability information first, followed by the BC of the B1+B2 combination.

[0171] It should be noted that the third embodiment is sorted by the number of downlink MIMO layers of BC. When sorting by the number of uplink MIMO layers of BC, its processing logic is the same as the logic of sorting based on the number of downlink MIMO layers of BC, and will not be repeated here for the sake of brevity.

[0172] Embodiment 4

[0173] In some embodiments, for multiple neighboring cells, there may be multiple inter-frequency bands (there are multiple neighboring cells with inter-frequency bands). Due to the limitation of the maximum number of BC reports, it may be impossible to report all non-2DL+1UL BCs of the inter-band CA of the serving cell and the neighboring cell in Embodiment 1 to the network device. In this case, the following optional schemes can be used to sort and determine the target BC to be reported to the network device.

[0174] Rule 5.3: Combination sorting can be performed based on the signal quality of neighboring cells and the number of MIMO layers of BC.

[0175] In this case, the fourth embodiment can be understood as a combination of the second embodiment and the third embodiment.

[0176] As an example, based on the signal quality ranking of neighboring cells, if the signal qualities of multiple neighboring cells are the same or have a small difference, you can refer to Example 3 and re-rank them according to the number of downlink MIMO layers of BC (or, the number of uplink MIMO layers of BC). This is introduced below using Table 4 and Table 5 as examples.

[0177] Table 4

[0178] Community Frequency band to which the cell belongs Same frequency / different frequency RSRP Cell 1 (serving cell) B1 Same frequency -85 Neighboring cell 2 B2 Different frequency -90 Neighboring cell 3 B3 Different frequency -90

[0179] Table 5

[0180] BC B1-cc1 B2-cc1 B2-cc2 B3-cc1 B3-cc2 (B1+B2) 4 2 4 (B1+B3) 4 4 4

[0181] It can be seen from Table 4 and Table 5 that the signal quality of neighboring cell 2 (B2) and neighboring cell 3 (B3) is the same, and they can be sorted with reference to the MIMO capability of BC of the combination of B1+B2 and the MIMO capability of BC of the combination of B1+B3, that is, BC of the combination of B1+B3 can be filled in the capability information first, followed by BC of the combination of B1+B2.

[0182] As another example, based on the sorting by MIMO capability of BCs, if multiple BCs have the same MIMO capability, the BCs can be re-sorted by the signal quality of neighboring cells with reference to Embodiment 2. This is described below using Table 6 and Table 7 as examples.

[0183] Table 6

[0184] BC B1-cc1 B2-cc1 B2-cc2 B3-cc1 B3-cc2 (B1+B2) 4 4 4 (B1+B3) 4 4 4

[0185] Table 7

[0186] Community Frequency band to which the cell belongs Same frequency / different frequency RSRP Cell 1 (serving cell) B1 Same frequency -85 Neighboring cell 2 B2 Different frequency -90 Neighboring cell 3 B3 Different frequency -95

[0187] It can be seen from Table 6 and Table 7 that the MIMO capabilities of the BC of the B1+B2 combination and the BC of the B1+B3 combination are the same, and can be sorted with reference to the signal quality of the neighboring cells, that is, the BC of the B1+B2 combination can be filled in the capability information first, followed by the BC of the B1+B3 combination.

[0188] Combination of the above Figures 1 to 8 , describes the method embodiment of the present application in detail, and the following is combined with Figures 9 to 11 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0189] Fig. 9 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Fig. 9 The terminal device 900 shown may include a determination module 910 and a reporting module 920 .

[0190] The determination module 910 may be configured to determine a target frequency band combination to be reported from frequency band combinations supported by the terminal device according to the first information.

[0191] The reporting module 920 can be used to report the capability information of the terminal device, and the capability information includes the target frequency band combination; wherein the first information includes one or more of the following: information of the service cell of the terminal device; information of the neighboring cell of the terminal device; and MIMO capability of the frequency band combination supported by the terminal device.

[0192] Optionally, the information of the serving cell includes a frequency band corresponding to the serving cell; the information of the neighboring cell includes one or more of the following information: a frequency band corresponding to the neighboring cell; and a signal quality corresponding to the neighboring cell.

[0193] Optionally, the target frequency band combination is determined from the frequency band combinations supported by the terminal device based on a first rule, and the first rule includes one or more of the following: first report the frequency band combination including the frequency band corresponding to the service cell, and then report the frequency band combination including the frequency band corresponding to the neighboring cell; first report the frequency band combination including the frequency band corresponding to the cell with good signal quality, and then report the frequency band combination including the frequency band corresponding to the cell with poor signal quality; first report the frequency band combination with strong MIMO capability, and then report the frequency band combination with weak MIMO capability; first report the frequency band combination corresponding to intra-band carrier aggregation, and then report the frequency band combination corresponding to inter-band carrier aggregation; and first report the frequency band combination including a small number of frequency bands, and then report the frequency band combination including a large number of frequency bands.

[0194] Optionally, the first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, first reporting the frequency band combination including the frequency band corresponding to the neighboring cell with good signal quality, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell with poor signal quality.

[0195] Optionally, the first rule also includes: if the frequency band combination corresponding to the neighboring cell includes a frequency band combination corresponding to a neighboring cell with the same signal quality, the frequency band combination with strong MIMO capability is reported first, and then the frequency band combination with weak MIMO capability is reported.

[0196] Optionally, the first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, the frequency band combination with strong MIMO capability is reported first, and then the frequency band combination with weak MIMO capability.

[0197] Optionally, the first rule also includes: if the frequency band combination of the frequency bands corresponding to the neighboring cells includes a frequency band combination with the same MIMO capability, the frequency band combination of the frequency bands corresponding to the neighboring cells with good signal quality is reported first, and then the frequency band combination of the frequency bands corresponding to the neighboring cells with poor signal quality is reported.

[0198] Optionally, the MIMO capability of a frequency band combination supported by the terminal device is determined based on the number of MIMO layers corresponding to the frequency bands in the frequency band combination.

[0199] Optionally, the determination of the target frequency band combination is triggered based on a first condition, and the first condition includes one or more of the following: the capability query message received by the terminal device does not contain filtering parameters for the frequency band combination; and the number of frequency band combinations supported by the terminal device is greater than the maximum number of frequency band combinations allowed to be reported by the terminal device.

[0200] Optionally, the target frequency band combination includes one or more of the following: a frequency band combination of two downlinks and one uplink; and a frequency band combination other than two downlinks and one uplink.

[0201] Fig.10 A schematic diagram of the structure of a communication system provided in an embodiment of the present application. Fig.10 The communication system 1000 shown may include a terminal device 1010 and a network device 1020. The terminal device 1010 and the network device 1020 may be communicatively connected.

[0202] The terminal device 1010 can be used to report capability information of the terminal device 1010 to the network device 1020, wherein the capability information includes a target frequency band combination, and the target frequency band combination is determined from the frequency band combinations supported by the terminal device based on first information; wherein the first information includes one or more of the following: information of a service cell of the terminal device; information of a neighboring cell of the terminal device; and multiple-input multiple-output MIMO capability of the frequency band combination supported by the terminal device.

[0203] Optionally, the information of the serving cell includes a frequency band corresponding to the serving cell; the information of the neighboring cell includes one or more of the following information: a frequency band corresponding to the neighboring cell; and a signal quality corresponding to the neighboring cell.

[0204] Optionally, the target frequency band combination is determined from the frequency band combinations supported by the terminal device based on a first rule, and the first rule includes one or more of the following: first report the frequency band combination including the frequency band corresponding to the service cell, and then report the frequency band combination including the frequency band corresponding to the neighboring cell; first report the frequency band combination including the frequency band corresponding to the cell with good signal quality, and then report the frequency band combination including the frequency band corresponding to the cell with poor signal quality; first report the frequency band combination with strong MIMO capability, and then report the frequency band combination with weak MIMO capability; first report the frequency band combination corresponding to intra-band carrier aggregation, and then report the frequency band combination corresponding to inter-band carrier aggregation; and first report the frequency band combination including a small number of frequency bands, and then report the frequency band combination including a large number of frequency bands.

[0205] Optionally, the first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, first reporting the frequency band combination including the frequency band corresponding to the neighboring cell with good signal quality, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell with poor signal quality.

[0206] Optionally, the first rule also includes: if the frequency band combination corresponding to the neighboring cell includes a frequency band combination corresponding to a neighboring cell with the same signal quality, the frequency band combination with strong MIMO capability is reported first, and then the frequency band combination with weak MIMO capability is reported.

[0207] Optionally, the first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, the frequency band combination with strong MIMO capability is reported first, and then the frequency band combination with weak MIMO capability.

[0208] Optionally, the first rule also includes: if the frequency band combination of the frequency bands corresponding to the neighboring cells includes a frequency band combination with the same MIMO capability, the frequency band combination of the frequency bands corresponding to the neighboring cells with good signal quality is reported first, and then the frequency band combination of the frequency bands corresponding to the neighboring cells with poor signal quality is reported.

[0209] Optionally, the MIMO capability of a frequency band combination supported by the terminal device is determined based on the number of MIMO layers corresponding to the frequency bands in the frequency band combination.

[0210] Optionally, the determination of the target frequency band combination is triggered based on a first condition, and the first condition includes one or more of the following: the capability query message received by the terminal device does not contain filtering parameters for the frequency band combination; and the number of frequency band combinations supported by the terminal device is greater than the maximum number of frequency band combinations allowed to be reported by the terminal device.

[0211] Optionally, the target frequency band combination includes one or more of the following: a frequency band combination of two downlinks and one uplink; and a frequency band combination other than two downlinks and one uplink.

[0212] Fig.11 It is a schematic structural diagram of a communication device according to an embodiment of the present application. Fig.11 The dotted line in the figure indicates that the unit or module is optional. The device 1100 can be used to implement the method described in the above method embodiment. The device 1100 can be a chip, a terminal device or a network device.

[0213] The device 1100 may include one or more processors 1110. The processor 1110 may support the device 1100 to implement the method described in the above method embodiment. The processor 1110 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0214] The apparatus 1100 may further include one or more memories 1120. The memory 1120 stores a program, which can be executed by the processor 1110, so that the processor 1110 executes the method described in the above method embodiment. The memory 1120 may be independent of the processor 1110 or integrated in the processor 1110.

[0215] The apparatus 1100 may further include a transceiver 1130. The processor 1110 may communicate with other devices or chips through the transceiver 1130. For example, the processor 1110 may transmit and receive data with other devices or chips through the transceiver 1130.

[0216] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0217] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0218] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.

[0219] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0220] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0221] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0222] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0223] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0224] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0225] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0226] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0227] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0228] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0229] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0230] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. 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 site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0231] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for reporting capability, characterized in that: include: The terminal device determines, according to the first information, a target frequency band combination to be reported from the frequency band combinations supported by the terminal device; The terminal device reports capability information of the terminal device, where the capability information includes the target frequency band combination; The first information includes one or more of the following: Information about the serving cell of the terminal device; Information about neighboring cells of the terminal device; and The multiple-input multiple-output (MIMO) capability of the frequency band combination supported by the terminal device.

2. The method according to claim 1, characterized in that The information of the serving cell includes a frequency band corresponding to the serving cell; The information of the neighboring cell includes one or more of the following information: a frequency band corresponding to the neighboring cell; and a signal quality corresponding to the neighboring cell.

3. The method according to claim 2, characterized in that The target frequency band combination is determined from frequency band combinations supported by the terminal device based on a first rule, wherein the first rule includes one or more of the following: Firstly report the frequency band combination including the frequency band corresponding to the serving cell, and then report the frequency band combination including the frequency band corresponding to the neighboring cell; First, the frequency band combination including the frequency band corresponding to the cell with good signal quality is reported, and then the frequency band combination including the frequency band corresponding to the cell with poor signal quality is reported; The frequency band combinations with strong MIMO capabilities are reported first, and the frequency band combinations with weak MIMO capabilities are reported later; First report the frequency band combination corresponding to the intra-band carrier aggregation, and then report the frequency band combination corresponding to the inter-band carrier aggregation; and The frequency band combination including the smaller number of frequency bands is reported first, and the frequency band combination including the larger number of frequency bands is reported later.

4. The method according to claim 3, characterized in that The first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, first reporting the frequency band combination including the frequency band corresponding to the neighboring cell with good signal quality, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell with poor signal quality.

5. The method according to claim 4, characterized in that The first rule also includes: if the frequency band combination corresponding to the neighboring cell includes a frequency band combination corresponding to a neighboring cell with the same signal quality, the frequency band combination with strong MIMO capability is reported first, and then the frequency band combination with weak MIMO capability is reported.

6. The method according to claim 3, characterized in that The first rule includes first reporting the frequency band combination including the frequency band corresponding to the service cell, and then reporting the frequency band combination including the frequency band corresponding to the neighboring cell, and among the frequency band combinations corresponding to the neighboring cells, first reporting the frequency band combination with strong MIMO capability, and then reporting the frequency band combination with weak MIMO capability.

7. The method according to claim 6, characterized in that The first rule also includes: if the frequency band combination corresponding to the neighboring cell includes a frequency band combination with the same MIMO capability, the frequency band combination corresponding to the neighboring cell with good signal quality is reported first, and then the frequency band combination corresponding to the neighboring cell with poor signal quality is reported.

8. The method according to claim 1, characterized in that The MIMO capability of a frequency band combination supported by the terminal device is determined based on the number of MIMO layers corresponding to the frequency bands in the frequency band combination.

9. The method according to claim 1, characterized in that: The determination of the target frequency band combination is triggered based on a first condition, where the first condition includes one or more of the following: The capability query message received by the terminal device does not include a filtering parameter for a frequency band combination; and The number of frequency band combinations supported by the terminal device is greater than the maximum number of frequency band combinations allowed to be reported by the terminal device.

10. The method according to claim 1, characterized in that The target frequency band combination includes one or more of the following: Two downlink and one uplink frequency band combinations; and A frequency band combination other than two downlinks and one uplink.

11. A terminal device, characterized in that: include: A determination module, configured to determine a target frequency band combination to be reported from the frequency band combinations supported by the terminal device according to the first information; A reporting module, used to report capability information of the terminal device, wherein the capability information includes the target frequency band combination; The first information includes one or more of the following: Information about the serving cell of the terminal device; Information about neighboring cells of the terminal device; and The multiple-input multiple-output (MIMO) capability of the frequency band combination supported by the terminal device.

12. A terminal device, characterized in that: The device comprises a memory, a processor and a transceiver, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the terminal device executes the method as claimed in any one of claims 1 to 10.

13. A device, characterized in that: The device comprises a processor, which is used to call a program from a memory so that the device executes the method according to any one of claims 1 to 10.

14. A chip, characterized in that: The device comprises a processor, which is used to call a program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 10.

15. A computer-readable storage medium, characterized in that: A program is stored thereon, and the program enables a computer to execute the method according to any one of claims 1 to 10.

16. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 10.

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