Communication method, terminal device and network device

Abstract

The present application relates to a communication method, a terminal device and a network device. The method comprises: a terminal device determining first information, wherein the first information comprises information related to usable communication capabilities of the terminal device, which information is used for being indicated to a network device. In the embodiments of the present application, by means of indicating the information related to the usable communication capabilities of the terminal device, the utilization rate of communication capabilities of the terminal device can be improved.

Description

Communication method, terminal device and network device TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly, to a communication method, a terminal device and a network device. BACKGROUND

[0002] In a communication network, a terminal device can establish connections with multiple access network devices. In a multi-connection architecture, terminal device functions can be coordinated usually through interface signaling between different access network devices, such as base stations. However, in a next-generation network, a multi-connection architecture on the access network side can not have interfaces between access network devices.

[0003] SUMMARY

[0004] Embodiments of the present application provide a communication method, a terminal device, a network device, a computer readable storage medium, a computer program product and a computer program.

[0005] Embodiments of the present application provide a communication method, comprising:

[0006] A terminal device determines first information, the first information including communication capability related information of the terminal device that can be used to indicate to a network device.

[0007] Embodiments of the present application provide a communication method, comprising:

[0008] A first network device sends second information to a terminal device, the second information being used to instruct the terminal device to generate first information according to a configuration of the first network device, the first information including communication capability related information of the terminal device that can be used to indicate to a network device.

[0009] Embodiments of the present application provide a communication method, comprising:

[0010] A second network device receives first information from a terminal device, the first information including communication capability related information of the terminal device that can be used to indicate to a network device.

[0011] Embodiments of the present application provide a terminal device, comprising:

[0012] A first processing unit is configured to determine first information, the first information including communication capability related information of the terminal device that can be used to indicate to a network device.

[0013] Embodiments of the present application provide a first network device, comprising:

[0014] The fifth communication unit is configured to send second information to the terminal device, the second information being used to instruct the terminal device to generate the first information according to the configuration of the first network device, and the first information including the communication capability related information of the terminal device that can be used to instruct the network device.

[0015] The second network device provided in the embodiments of the present application comprises:

[0016] The sixth communication unit is configured to receive the first information from the terminal device, the first information including the communication capability related information of the terminal device that can be used to instruct the network device.

[0017] The terminal device provided in the embodiments of the present application comprises a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the terminal device performs the communication method described above.

[0018] The first network device provided in the embodiments of the present application comprises a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the first network device performs the communication method described above.

[0019] The second network device provided in the embodiments of the present application comprises a transceiver, a processor and a memory. The memory is configured to store a computer program, the transceiver is configured to communicate with other devices, and the processor is configured to invoke and run the computer program stored in the memory, so that the second network device performs the communication method described above.

[0020] The chip provided in the embodiments of the present application is configured to implement the communication method described above. Specifically, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the communication method described above.

[0021] The computer readable storage medium provided in the embodiments of the present application is configured to store a computer program, which, when run by a device, causes the device to perform the communication method described above.

[0022] The computer program product provided in the embodiments of the present application comprises computer program instructions, which cause a computer to perform the communication method described above.

[0023] The computer program provided in the embodiments of the present application, when run on a computer, causes the computer to perform the communication method described above.

[0024] The embodiment of the present application provides a communication system, comprising: a terminal device configured to perform the communication method described above; a first network device configured to perform the communication method described above; and a second network device configured to perform the communication method described above.

[0025] According to the embodiment of the present application, by indicating the communication capability related information of the terminal device that can be used, the utilization rate of the communication capability of the terminal device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0027] FIG. 2 is a schematic diagram of LTE dual connectivity and LTE NR dual connectivity.

[0028] FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0029] FIG. 4 is a schematic flowchart of a communication method according to another embodiment of the present application.

[0030] FIG. 5 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0031] FIG. 6 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0032] FIG. 7 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0033] FIG. 8 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0034] FIG. 9 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0035] FIG. 10 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0036] FIG. 11 is a schematic flowchart of a communication method according to yet another embodiment of the present application.

[0037] FIG. 12 is a schematic flowchart of asymmetric coordination according to an embodiment of the present application.

[0038] FIG. 13 is a schematic flowchart based on MO service triggering according to an embodiment of the present application.

[0039] FIG. 14 is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0040] FIG. 15 is a schematic block diagram of a first network device according to an embodiment of the present application.

[0041] FIG. 16 is a schematic block diagram of a second network device according to an embodiment of the present application.

[0042] FIG. 17 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0043] FIG. 18 is a schematic block diagram of a chip according to an embodiment of the present application.

[0044] FIG. 19 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0046] The technical solutions in the embodiments of the present application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, a Non-Terrestrial Networks (NTN) system, a Universal Mobile Telecommunication System (UMTS), a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a 5th-Generation (5G) system, or other communication systems, etc.

[0047] Generally, a traditional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, a mobile communication system will not only support traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0048] In an embodiment, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0049] In an embodiment, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, which can also be regarded as a shared spectrum, or can be applied to a licensed spectrum, which can also be regarded as a non-shared spectrum.

[0050] The embodiments of the present application combine network devices and terminal devices, wherein the terminal device can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user apparatus, etc.

[0051] The terminal device can be a station (STA) in a WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0052] In the embodiments of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0053] In the embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0054] By way of example and not limitation, in the embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also has powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes devices with full functions, large size, and the ability to realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various smart wristbands and smart jewelry for monitoring vital signs, etc.

[0055] In the embodiments of the present application, the network device can be a device for communicating with the mobile device, which can be an access point (AP) in a WLAN, an evolved node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (gNB) or a future evolved PLMN network or a network device in an NTN network, etc.

[0056] By way of example and not limitation, in embodiments of the present application, a network device can have a mobile characteristic, for example, the network device can be a mobile device. Alternatively, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) satellite, etc. Alternatively, the network device can also be a base station disposed at a location on land, water, etc.

[0057] In embodiments of the present application, a network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc., and these small cells have a small coverage range and low transmit power, and are suitable for providing high-rate data transmission services.

[0058] FIG. 1 illustrates a communication system 100. The communication system includes one network device 110 and two terminal devices 120. In an implementation, the communication system 100 can include multiple network devices 110, and each network device 110 can include other numbers of terminal devices 120 within its coverage range, which is not limited in embodiments of the present application.

[0059] In an implementation, the communication system 100 can also include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in embodiments of the present application.

[0060] The network device can include an access network device and a core network device. That is, the wireless communication system also includes a plurality of core networks for communicating with the access network device. The access network device can be an evolved node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an access point (AP), a transmission point (TP), or a new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next radio (NR) system, or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0061] It should be understood that the devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. For example, the communication system shown in FIG. 1 can include network devices and terminal devices with communication functions. The network devices and terminal devices can be specific devices in the embodiments of the present application, which will not be described here. The communication devices can also include other devices in the communication system, such as network controllers, mobile management entities, and other network entities. The embodiments of the present application do not limit the above.

[0062] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document is only used to describe the association relationship between the associated objects. For example, A and / or B can represent three cases: A alone, A and B together, and B alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0063] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained directly through A; or A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or A and B have an associated relationship.

[0064] In the description of the embodiments of the present application, the term "corresponding" can mean a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, and the like.

[0065] For the convenience of understanding the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows, and the following related technologies can be combined with the technical solutions of the embodiments of the present application in any manner as optional solutions, which all belong to the protection scope of the embodiments of the present application.

[0066] I. 5G NR

[0067] With the pursuit of rate, delay, high mobility and energy efficiency and the diversity and complexity of services in future life, the 3rd Generation Partnership Project (3GPP) international standard organization begins to develop 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), ultra reliable and low latency communication (URLLC), and massive machine type communications (mMTC).

[0068] eMBB aims to enable users to obtain multimedia content, services and data, and its demand is growing rapidly. Since eMBB can be deployed in different scenarios, such as indoor, urban, rural, etc., its capacity and demand vary greatly, and detailed analysis is needed in combination with specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc. The typical characteristics of mMTC include high connection density, small data volume, delay-insensitive services, low-cost modules and long service life, etc.

[0069] NR can also be deployed independently. In order to reduce air signaling and quickly recover wireless connection in 5G network environment, a new radio resource control (RRC) state is defined for the purpose of quickly recovering data services, i.e. RRC deactivation (RRC_INACTIVE) state. This state is different from RRC idle (RRC_IDLE) and RRC active (RRC_ACTIVE) states.

[0070] RRC_IDLE: mobility is based on UE cell selection and reselection, paging is initiated by the core network (CN), and the paging area is configured by the CN. There is no UE access-stratum (AS) context on the base station side. There is no RRC connection.

[0071] RRC_CONNECTED: RRC connection exists, base station and UE exist UE AS context. The network side knows the location of the UE is the specific cell level. Mobility is network side controlled mobility. Unicast data can be transmitted between UE and base station.

[0072] RRC_INACTIVE: mobility is based on UE's cell selection reselection, connection between CN and NR exists, UE AS context exists on certain base station, paging is triggered by RAN, RAN-based paging area is managed by RAN, and the network side knows the location of the UE is based on the RAN-based paging area level.

[0073] II. Access network 4G-5G dual connectivity (or dual link)

[0074] In LTE dual connectivity, control plane (C-plane) signaling of the CN can be transmitted to the UE through the master station, and user plane (U-plane) signaling can be transmitted to the UE through the master station, or transmitted to the UE through the master station and then the slave station.

[0075] Since 5G NR is a new wireless technology, LTE-NR dual connectivity can achieve aggregation between different wireless technologies. As shown in FIG. 2, for early deployment of 5G, in LTE-NR dual connectivity mode, the LTE eNB (4G base station) is the master station, and the gNB (5G base station) is the slave station. However, traditional LTE dual connectivity is difficult to meet this deployment mode, and the main reason is that since the bandwidth of 5G NR is larger, it requires a 4G base station supporting Master Cell Group (MCG) split bearer to have stronger processing and buffering capabilities.

[0076] Therefore, in order to avoid the bottleneck of the processing capability of the 4G base station, minimize the upgrade of the original 4G base station, and reduce the cost of equipment research and development and network construction as much as possible, LTE-NR dual connectivity takes a different approach and provides that the SCG split bearer can also be used. That is, the downlink data stream (such as U-plane signaling) can be transmitted directly from the 5G slave station (NR gNB) to the mobile phone, or transmitted from the 5G slave station to the 4G master station (LTE eNB) and then to the mobile phone, as shown in FIG. 2.

[0077] FIG. 3 is a schematic flowchart of a communication method 300 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method includes at least part of the following content.

[0078] S310, the terminal device determines first information, the first information being used to indicate a communication capability related information of the terminal device that can be used to the network device.

[0079] In the embodiments of the present application, the network device can be referred to as a network node, for example, the network device can include a base station, can include a DU or a CU, and can also include a DU and a CU, etc. The terminal device can determine the first information according to the implementation of the terminal device itself, or can determine the first information of the second network device according to the configuration of the first network device. For example, the terminal device can determine the communication capability related information of the terminal device that can be used by the network devices NW1 and NW2 according to the implementation of the terminal device itself. For another example, the terminal device can determine the communication capability related information of the terminal device that can be used by the network device NW2 according to the configuration of the network device NW1. For another example, the terminal device can determine the communication capability related information of the terminal device that can be used by the network device NW3 according to the configuration of the network devices NW1 and NW2.

[0080] In an implementation, the terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices in at least two communication modes. For example, the terminal device is connected to the first network device in a 5G communication mode and is connected to the second network device in a 6G communication mode. There can be no available interface between the first network device and the second network device, for example, there is no available inter-base station interface between the two base stations. In this case, the configuration related to the terminal device can be coordinated among multiple connections through the terminal device connected to multiple network devices. In some examples, the terminal device can generate the first information corresponding to the second network device, for example, the communication capability related information of the terminal device that can be used by the second network device, according to the configuration of the first network device, for example, the communication capability related information of the terminal device actually or predictively occupied by the first network device.

[0081] In an implementation, the first information is used for configuring and coordinating the communication capability related information of the terminal device that can be used among multiple network devices. For example, the first information can be configured and coordinated between the network device NW1 and the network device NW2, and the communication capability related information of the terminal device that can be used by NW1 and NW2 respectively.

[0082] In an embodiment, the communication capability related information comprises at least one of the following: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a header compression capability; a physical layer signal processing capability. For example, the frequency band can represent a frequency band supported by the terminal device; the frequency band combination can represent a frequency band combination supported by the terminal device; the frequency range can represent a frequency range supported by the terminal device. For another example, different frequency ranges can have corresponding maximum power values. For another example, the measurement capability comprises a maximum number of frequencies that can be measured by the terminal device. For another example, the demodulation capability comprises a number of blind detections of control channels that can be supported by the terminal device. For another example, the header compression capability comprises a number of compression sessions that can be supported by the terminal device. For another example, the physical layer signal processing capability comprises at least one of a number of SRSs, CLIs, CSI-RSs, and CGs that can be supported by the terminal device.

[0083] FIG. 4 is a schematic flowchart of a communication method 400 according to another embodiment of the present application. The method can comprise one or more features of the communication method 300 described above. The method comprises at least part of the following.

[0084] S410, the terminal device sends first information. In an embodiment of the present application, the terminal device can send the first information to the first network device and / or the second network device. For example, the terminal device receives a configuration from the first network device, generates the first information according to the configuration of the first network device, and then sends the first information to the second network device. For another example, the terminal device generates the first information according to its own implementation, and sends the first information to the first network device and the second network device respectively. For another example, the terminal device generates the first information corresponding to the first network device and the second network device respectively according to its own implementation, and sends the first information corresponding to the first network device and the second network device respectively to the first network device and the second network device respectively.

[0085] In an embodiment, the sending condition of the first information comprises at least one of the following: a configuration signaling trigger of the first network device; a configuration signaling trigger of the second network device; a configuration signaling trigger of the core network; a configuration issued by the first network device or the second network device conflicts with a configuration of another network device (which can also include the first network device and / or the second network device); the first information reported to the first network device or the second network device conflicts with a configuration of another network device (which can also include the first network device and / or the second network device).

[0086] In an embodiment of the present application, after determining the first information, the terminal device can not send the first information immediately, but send the first information when certain sending conditions are met, which can prevent the network device from being frequently reconfigured and reduce signaling overhead.

[0087] In the embodiments of the present application, the terminal device receives configuration signaling from the first network device, and if the configuration signaling indicates that the first information needs to be sent to the second network device, the terminal device can send the corresponding first information to the second network device. The terminal device receives configuration signaling from the second network device, and if the configuration signaling indicates that the first information needs to be sent to the first network device, the terminal device can send the corresponding first information to the first network device.

[0088] In the embodiments of the present application, if the configuration of the first network device conflicts with the configuration of the second network device, or the configuration of the first network device conflicts with the configuration of the third network device, or the configuration of the second network device conflicts with the configuration of the third network device, the terminal device can send the first information to the first network device and / or the second network device. For example, if the UE1 frequency range that the base station 1 configures itself to be able to use conflicts with the UE1 frequency range that the base station 2 configures itself to be able to use, the UE1 can generate the UE1 frequency range suitable for the base station 2 to use according to the UE1 frequency range that the base station 1 configures to be able to use, and send it to the base station 2. For another example, if the UE1 measurement capability that the base station 2 configures to be able to use conflicts with the UE1 measurement capability that the base station 3 configures, the UE1 can generate the UE1 measurement capability suitable for the base station 2 to use according to the UE1 measurement capability that the base station 3 configures to be able to use, and send it to the base station 2.

[0089] In the embodiments of the present application, if the first information reported by the terminal device to the first network device conflicts with the configuration of the second network device, the terminal device can send the first information to the second network device. If the first information reported by the terminal device to the second network device conflicts with the configuration of the first network device, the terminal device can send the first information to the first network device.

[0090] In an implementation, the first information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message. In this way, the sending process of the first information can be combined with other processes, which is beneficial to reduce unnecessary signaling overhead.

[0091] FIG. 5 is a schematic flowchart of a communication method 500 according to yet another embodiment of the present application. The method can include one or more features of the above communication methods 300, 400. The method includes at least part of the following.

[0092] S510, the terminal device receives second information, and the second information is used to generate the first information according to the configuration of the first network device.

[0093] In the embodiments of the present application, the terminal device can receive second information from the first network device, and the second information can indicate that the configuration of the first network device is used as the main configuration or reference configuration for generating the first information. For example, the configuration of the first network device can include the communication capability related information of the terminal device that has been used or is expected to be used by the first network device. The first information generated by the terminal device according to the second information can include the communication capability related information of the terminal device that can be used by the second network device.

[0094] In an implementation, the first network device is a master node. In the embodiments of the present application, the terminal device can receive indication information from the core network, and the indication information is used to indicate the master node in the multiple network devices connected with the terminal device. For example, if UE1 establishes connections with base station 1 and base station 2, and the core network indicates that base station 2 is the master node, UE1 regards base station 2 as the master node.

[0095] In an implementation, the first information is generated according to the configuration of the network device with which the terminal device first establishes a connection. For example, if UE1 establishes connections with base station 1 and base station 2, and UE1 first establishes a connection with base station 2, UE1 regards base station 2 as the master node.

[0096] In an implementation, the first information is used to indicate the communication capability related information of the terminal device that can be used to the second network device. In the embodiments of the present application, if the first information generated by the terminal device according to the second information includes the communication capability related information of the terminal device that can be used to the second network device, the terminal device can send the first information to the second network device.

[0097] In an implementation, the second network device is a secondary node. In the embodiments of the present application, if the first information generated by the terminal device according to the second information from the master node includes the communication capability related information of the terminal device that can be used to the secondary node, the terminal device can send the first information to the secondary node.

[0098] FIG. 6 is a schematic flowchart of a communication method 600 according to yet another embodiment of the present application. The method can include one or more features of the above communication methods 300, 400, 500. The method includes at least part of the following content.

[0099] S610, the terminal device receives third information, and the third information includes the configuration of the second network device.

[0100] S620, in the case that the configuration of the second network device conflicts with the first information or the configuration of the first network device, the terminal device does not accept the third information, and sends the first information to the second network device.

[0101] In the embodiments of the present application, after receiving the third information from the second network device, if the comparison result is that the third information and the first information or the configuration of the first network device conflict, the terminal device can not accept the third information, and can further send the first information to the second network device. For example, if the UE 1 receives the frequency band combination BC1 configured by the base station 2 (secondary node) and the frequency band combination BC2 configured by the base station 1 (primary node) conflicts, the UE 1 can not accept the frequency band combination configured by the base station 2, and can further send the frequency band combination BC3 that the base station 2 can use according to the frequency band combination BC2 to the base station 2. For another example, if the UE 1 receives the frequency band combination BC1 configured by the base station 2 and the frequency band combination BC3 generated by the UE 1 according to the frequency band combination BC2 configured by the base station 1 conflicts, the UE 1 can not accept the frequency band combination configured by the base station 2, and can further send the frequency band combination BC3 to the base station 2.

[0102] Fig. 7 is a schematic flowchart of a communication method 700 according to yet another embodiment of the present application. The method can comprise one or more features of the communication methods 300, 400, 500, 600 described above. The method comprises at least part of the following.

[0103] At S710, the terminal device sends configuration update information, the configuration update information being used to indicate the usage information of the configuration of the second network device. For example, the configuration update information can comprise at least one of the following information related to the terminal device communication capability that has been used by the second network device: frequency band; frequency band combination; frequency range; maximum power value; measurement capability; demodulation capability; packet header compression capability; physical layer signal processing capability. After the terminal device sends the configuration update information to the first network device, the first network device can continue to use the idle capability of the terminal device according to the configuration update information.

[0104] In an implementation, the sending condition of the configuration update information comprises at least one of the following: configuration signaling trigger of the first network device; configuration signaling trigger of the second network device. For example, if the configuration signaling of the primary node received by the terminal device indicates to send the configuration update information, the terminal device can send the configuration update information to the primary node. For another example, if the configuration signaling of the secondary node received by the terminal device indicates to send the configuration update information, the terminal device can send the configuration update information to the primary node. After receiving the configuration update information, the primary node can further use the idle capability of the terminal device in the case that the secondary node does not use all the capabilities of the terminal device.

[0105] In an implementation, the configuration update information is carried by at least one of the following: terminal device capability reporting message; terminal device assistance message.

[0106] FIG. 8 is a schematic flowchart of a communication method 800 according to another embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0107] S810, the first network device sends second information to the terminal device, the second information being used to instruct the terminal device to generate the first information according to the configuration of the first network device, the first information being used to indicate the communication capability related information of the terminal device that can be used to the network device.

[0108] In an implementation, the terminal device is in a multi-connection state, and the terminal device is connected to multiple different network devices in two or more communication modes.

[0109] In an implementation, the first information is used to configure coordination among multiple network devices for the communication capability related information of the terminal device that can be used.

[0110] FIG. 9 is a schematic flowchart of a communication method 900 according to another embodiment of the present application. The method can comprise one or more features of the communication method 800 described above. The method comprises at least part of the following.

[0111] S910, the first network device receives configuration update information, the configuration update information being used to indicate the usage information of the configuration of the second network device.

[0112] In an implementation, the sending condition of the configuration update information comprises at least one of the following: configuration signaling triggering of the first network device; configuration signaling triggering of the second network device.

[0113] In an implementation, the configuration update information is carried by at least one of the following: terminal device capability reporting message; terminal device assistance message.

[0114] In an implementation, the communication capability related information comprises at least one of the following information: frequency band; frequency band combination; frequency range; maximum power value; measurement capability; demodulation capability; packet header compression capability; physical layer signal processing capability.

[0115] In an implementation, the first network device is a DU and / or a CU.

[0116] The specific examples of the first network device performing the methods 800 and 900 of the present embodiment can be referred to the relevant descriptions of the first network device in the methods 300 to 700 described above. For brevity, the details are not described herein.

[0117] FIG. 10 is a schematic flowchart of a communication method 1000 according to another embodiment of the present application. The method can optionally be applied to the system shown in FIG. 1, but is not limited thereto. The method comprises at least part of the following.

[0118] S1010, the second network device receives first information from the terminal device, the first information being used to indicate the communication capability related information of the terminal device that can be used to the network device.

[0119] In an implementation, the terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices in at least two communication modes.

[0120] In an implementation, the first information is used to configure the coordination of the communication capability related information of the terminal device that can be used among multiple network devices.

[0121] In an implementation, the first information is carried through at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

[0122] In an implementation, the first information is used to indicate the communication capability related information of the terminal device that can be used to the second network device.

[0123] In an implementation, the second network device is a secondary node.

[0124] FIG. 11 is a schematic flowchart of a communication method 1100 according to another embodiment of the present application. The method can comprise one or more features of the communication method 1000 described above. The method comprises at least part of the following.

[0125] S1110, the second network device sends third information, the third information comprising a configuration of the second network device.

[0126] S1120, the second network device receives new first information, the new first information being sent after the terminal device does not accept the third information in the case that the configuration of the second network device conflicts with the first information or the configuration of the first network device.

[0127] In an implementation, the communication capability related information comprises at least one of the following: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; a physical layer signal processing capability.

[0128] The specific examples of the second network device performing the methods 1000 and 1100 of the present embodiment can be found in the relevant descriptions of the second network device in the methods 300 to 700 described above. For brevity, they will not be described here again.

[0129] In an application scenario, the first network device and the second network device in the embodiments of the present application can be any one of the following: a DU (Distributed Unit); a CU (Centralized Unit); a DU and a CU.

[0130] The first network device and the second network device can correspond to a first carrier set and a second carrier set, respectively. The carrier set contains at least one carrier, and the first carrier set and the second carrier set contain different carriers. The first network device and the second network device can be referred to as a cell, a gNB, etc., which is not limited here.

[0131] Embodiment 1: Asymmetric coordination, see FIG. 12.

[0132] Step 1201: Optionally, the UE obtains second information from the core network, which can indicate configuration information of which network to be the master node. In one way, the configuration information can be carried by the non-access layer (Non-Access Stratum, NAS) information, and can be configured on the UE policy (Policy). Specifically, it can indicate the type of node that can be the master node, such as RAT; TN, NTN; 3GPP, non-3GPP, etc. Based on this way, the core network can semi-statically control which network node to be the master node. In another way, the UE can take the node that establishes the connection first as the master node.

[0133] Step 1202: The UE receives configuration information, i.e., configuration 1 (Configuration2), from the master node.

[0134] Step 1203: The UE generates first information (configuration-Info) according to the configuration information received from the master node. The first information can contain information related to inter-node configuration coordination.

[0135] (1) Content of the first information

[0136] In one way, the first information includes, but is not limited to, at least one of the following information that the secondary node can use under the premise of being compatible with the master node configuration:

[0137] Frequency band, frequency band combination, frequency range;

[0138] Maximum power value (which can distinguish different frequency range indications);

[0139] Measurement capability, such as the maximum number of frequencies that can be measured;

[0140] Demodulation capability, such as the number of blind detections that can be supported;

[0141] Packet header compression capability, such as the number of compression sessions that can be supported;

[0142] Physical layer signal processing capabilities, such as the number of SRS, CLI, CSI-RS, and CG that can be supported.

[0143] In another manner, the first information may provide the configuration of the primary node, thereby helping the secondary node to obtain a configurable parameter range.

[0144] The first information may be used to coordinate UE configurations between different network nodes, thereby utilizing the communication capabilities of the UE to the maximum extent.

[0145] (2) The conditions for sending the first information may include at least one of the following:

[0146] If the configuration of the second network device (Network2) allows;

[0147] If the configuration of the first network device (Network1) allows;

[0148] If the core network configuration allows;

[0149] For example, the first information is sent only when the current auxiliary node configuration conflicts with the current master node configuration, or when the auxiliary node configuration given by the previous first information conflicts with the current master node configuration.

[0150] Triggered by an event;

[0151] Triggered by signaling; for example, triggered by configuration signaling of the master node, or triggered by configuration signaling of the slave node (see step 1204).

[0152] Sending the first information based on certain triggering conditions facilitates reducing a large amount of signaling overhead caused by frequent node reconfiguration.

[0153] (3) The first information can be reported to the network via at least one of the following: a UE capability reporting message; or a UE assistance message. Using the above information to send the first information facilitates integration with other processes and reduces unnecessary signaling overhead.

[0154] Step 1204: The UE receives configuration information, ie, Configuration 2, from the secondary node.

[0155] If the secondary node's configuration information conflicts with the first information reported by the UE or the configuration on the UE's master node, the UE may reject the secondary node's configuration information. Alternatively, the UE may report the latest first information to the secondary node. This ensures that the secondary node generates the relevant configuration based on the latest reported first information.

[0156] Step 1205: The UE sends a configuration-resulted or configuration-update message to the master node, the configuration-update message being generated according to the configuration message of the secondary node.

[0157] (1) Content of the configuration-update message. For example, the configuration-update message contains at least one of the following information of the secondary node configuration:

[0158] Frequency band, frequency band combination, frequency range;

[0159] Maximum power value (may distinguish different frequency range indications);

[0160] Measurement capability, for example, the maximum number of frequencies that can be measured;

[0161] Demodulation capability, for example, the number of blind detections that can be supported;

[0162] Packet header compression capability, for example, the number of compression sessions that can be supported;

[0163] Physical layer signal processing capability, for example, the number of SRS, CLI, CSI-RS, and CG that can be supported.

[0164] Based on the configuration-update message, the master node can further use the idle capabilities of the UE in the case that the secondary node does not use all the capabilities of the UE.

[0165] (2) The trigger condition for sending the configuration-update message can include at least one of the following: triggered by signaling; triggered by the configuration signaling of the master node; triggered by the configuration signaling of the secondary node. In this way, the amount of signaling overhead caused by frequent node reconfiguration can be reduced.

[0166] (3) The configuration-update message can be reported to the network by at least one of the following information: UE capability reporting message; UE assistance message. Using the above information to send the update message can facilitate the combination with other processes and reduce unnecessary signaling overhead.

[0167] Embodiment 2: Mechanism triggered by MO (sent by the terminal), as shown in FIG. 13.

[0168] Step 1301: The UE generates first information (Configuration-Info) according to its own implementation. The UE sends respective first information, i.e., first information 1 (Configuration-Info) and first information 2 (Configuration-Info2), to the current nodes (first network device and second network device). The specific content, sending condition, and sending method of the first information are described in the above embodiment 1, step 1205.

[0169] Step 1302: The UE receives configuration information, i.e., Configuration 1 and Configuration 2, from the current node.

[0170] If the configuration information of the current node and the first information reported by the UE or the configuration of the master node side of the UE conflict, the UE can not accept the configuration information of the secondary node. And optionally, the UE can report the latest first information to the current node. In this way, it can be ensured that the current node generates the relevant configuration according to the reported latest first information.

[0171] FIG. 14 is a schematic block diagram of a terminal device 1400 according to an embodiment of the present application. The terminal device 1400 can include:

[0172] A first processing unit 1401 configured to determine first information, the first information being used to indicate communication capability related information of the terminal device that can be used to a network device.

[0173] In an implementation, the terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices in at least two communication modes.

[0174] In an implementation, the first information is used to configure coordination of the communication capability related information of the terminal device that can be used among a plurality of network devices.

[0175] In an implementation, as shown in FIG. 14, the terminal device 1400 further includes:

[0176] A first communication unit 1402 configured to send the first information.

[0177] In an implementation, the sending condition of the first information includes at least one of the following: configuration signaling trigger of the first network device; configuration signaling trigger of the second network device; configuration signaling trigger of the core network; configuration issued by the first network device or the second network device conflicts with the configuration of other network devices; the first information reported to the first network device or the second network device conflicts with the configuration of other network devices.

[0178] In an implementation, the first information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

[0179] In an implementation, as shown in FIG. 14, the terminal device 1400 further includes:

[0180] A second communication unit 1403 configured to receive second information, the second information being used to generate the first information according to the configuration of the first network device.

[0181] In an embodiment, the first information is generated according to a configuration of the network device which first establishes a connection with the terminal device.

[0182] In an embodiment, the first network device is a master node.

[0183] In an embodiment, the first information is used to indicate, to the second network device, the communication capability related information of the terminal device which can be used.

[0184] In an embodiment, the second network device is a secondary node.

[0185] In an embodiment, the terminal device 1400 further includes, as shown in FIG. 14:

[0186] The third communication unit 1404 is configured to receive third information, the third information including a configuration of the second network device; in a case where the configuration of the second network device conflicts with the first information or the configuration of the first network device, the terminal device does not accept the third information, and sends the first information to the second network device.

[0187] In an embodiment, the terminal device 1400 further includes, as shown in FIG. 14:

[0188] The fourth communication unit 1405 is configured to send configuration update information, the configuration update information being used to indicate usage information of the configuration of the second network device.

[0189] In an embodiment, the sending condition of the configuration update information includes at least one of the following: configuration signaling triggering of the first network device; configuration signaling triggering of the second network device.

[0190] In an embodiment, the configuration update information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

[0191] In an embodiment, the communication capability related information includes at least one of the following information: frequency band; frequency band combination; frequency range; maximum power value; measurement capability; demodulation capability; packet header compression capability; physical layer signal processing capability.

[0192] FIG. 15 is a schematic block diagram of a first network device 1500 according to an embodiment of the present application. The network device 1500 can include:

[0193] The fifth communication unit 1501 is configured to send, to the terminal device, second information, the second information being used to indicate that the terminal device generates first information according to a configuration of the first network device, the first information being used to indicate, to the network device, the communication capability related information of the terminal device which can be used.

[0194] In an embodiment, the terminal device is in a multi-connection state, and the terminal device is connected to multiple different network devices using two or more communication modes.

[0195] In an embodiment, the first information is used to configure coordination between multiple network devices on the communication capability related information of the terminal device that can be used.

[0196] In an embodiment, the fifth communication unit 1501 is configured to receive configuration update information, the configuration update information being used to indicate the usage information configured by the second network device.

[0197] In an embodiment, the sending condition of the configuration update information comprises at least one of the following: configuration signaling triggering of the first network device; configuration signaling triggering of the second network device.

[0198] In an embodiment, the configuration update information is carried by at least one of the following: terminal device capability reporting message; terminal device assistance message.

[0199] In an embodiment, the communication capability related information comprises at least one of the following: frequency band; frequency band combination; frequency range; maximum power value; measurement capability; demodulation capability; packet header compression capability; physical layer signal processing capability.

[0200] In an embodiment, the first network device is a distributed unit (DU) and / or a central unit (CU).

[0201] FIG. 16 is a schematic block diagram of a second network device 1600 according to an embodiment of the present application. The network device 1600 can comprise:

[0202] The sixth communication unit 1601 is configured to receive first information from a terminal device, the first information being used to indicate the communication capability related information of the terminal device that can be used to the network device.

[0203] In an embodiment, the terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices using at least two communication modes.

[0204] In an embodiment, the first information is used to configure coordination between multiple network devices on the communication capability related information of the terminal device that can be used.

[0205] In an embodiment, the first information is carried by at least one of the following: terminal device capability reporting message; terminal device assistance message.

[0206] In an embodiment, the first information is used to indicate the communication capability related information of the terminal device that can be used to the second network device.

[0207] In an implementation, the second network device is a secondary node.

[0208] In an implementation, the sixth communication unit 1601 is configured to send third information, the third information comprising a configuration of the second network device; and receive new first information, the new first information being sent after the terminal device does not accept the third information in a case that the configuration of the second network device conflicts with the first information or a configuration of the first network device.

[0209] In an implementation, the communication capability related information comprises at least one of the following: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; and a physical layer signal processing capability.

[0210] The device according to the embodiments of the present application can realize the corresponding functions of each device in the foregoing communication method embodiments. The processes, functions, implementation manners and advantages of each module (sub-module, unit or component, etc.) in the device can be referred to the corresponding description in the foregoing method embodiments, which will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit or component, etc.) in the device according to the embodiments of the present application can be realized by different modules (sub-modules, units or components, etc.), or can be realized by the same module (sub-module, unit or component, etc.).

[0211] FIG. 17 is a schematic structural diagram of a communication device 1700 according to the embodiments of the present application. The communication device 1700 comprises a processor 1710, which can invoke and run a computer program from a memory to enable the communication device 1700 to implement the method according to the embodiments of the present application.

[0212] In a possible implementation, the communication device 1700 can further comprise a memory 1720. The processor 1710 can invoke and run a computer program from the memory 1720 to enable the communication device 1700 to implement the method according to the embodiments of the present application. The memory 1720 can be a separate device independent of the processor 1710, or can be integrated in the processor 1710. In a possible implementation, the communication device 1700 can further comprise a transceiver 1730, and the processor 1710 can control the transceiver 1730 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices. The transceiver 1730 can comprise a transmitter and a receiver. The transceiver 1730 can further comprise an antenna, and the number of antennas can be one or more.

[0213] FIG. 18 is a schematic structural diagram of a chip 1800 according to an embodiment of the present application. The chip 1800 includes a processor 1810, which can invoke and run a computer program from a memory to implement the method in the embodiments of the present application. In a possible implementation, the chip 1800 can further include a memory 1820. The processor 1810 can invoke and run a computer program from the memory 1820 to implement the method performed by each device in the embodiments of the present application. The memory 1820 can be a separate device independent of the processor 1810, or can be integrated in the processor 1810. In a possible implementation, the chip 1800 can further include an input interface 1830. The processor 1810 can control the input interface 1830 to communicate with other devices or chips, and specifically, can acquire information or data sent by other devices or chips. In a possible implementation, the chip 1800 can further include an output interface 1840. The processor 1810 can control the output interface 1840 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips. In a possible implementation, the chip can be applied to each device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by each device in each method of the embodiments of the present application. For brevity, details are not described herein. It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, a system chip, a chip system or a system-on-chip, etc.

[0214] The processor mentioned above can be a general processor, a digital signal processor, a ready programmable gate array, an application specific integrated circuit or other programmable logic device, a transistor logic device, a discrete hardware component, etc. The general processor mentioned above can be a microprocessor or any conventional processor, etc. The memory mentioned above can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0215] It should be understood that the memory described above is an example but not a limiting description, for example, the memory in the embodiments of the present application can also be a static random access memory, a dynamic random access memory, etc.

[0216] FIG. 19 is a schematic block diagram of a communication system 1900 according to embodiments of the present application. The communication system 1900 includes a terminal device 1910, a first network device 1920, and a second network device 1930. The specific functions of the terminal device 1910, the first network device 1920, and the second network device 1930 can be refer to the related description in the above embodiments. In the above embodiments, all or part of the processes can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the processes can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, all or part of the processes generate the flows or functions according to the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions can 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 can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media sets. The available medium can be a magnetic medium (such as a hard disk), or a semiconductor medium (such as a solid state disk), etc.

[0217] It should be understood that, in various embodiments of the present application, the size of the sequence number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0218] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0219] The above only describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, comprising: a terminal device determining first information, the first information being used to indicate, to a network device, communication capability related information of the terminal device that can be used.

2. The method according to claim 1, wherein the terminal device being in a multi-connection state, the terminal device being connected to at least two network devices using at least two communication modes.

3. The method according to claim 1 or 2, wherein: the first information being used to configure, among multiple network devices, coordination of the communication capability related information of the terminal device that can be used.

4. The method according to any one of claims 1 to 3, wherein the method further comprising: the terminal device sending the first information.

5. The method according to claim 4, wherein a sending condition of the first information comprising at least one of: configuration signaling triggering of a first network device; configuration signaling triggering of a second network device; configuration signaling triggering of a core network; configuration of the first network device or the second network device conflicting with configuration of another network device; the first information reported to the first network device or the second network device conflicting with configuration of another network device.

6. The method of any one of claims 1 to 5, wherein, the first information being carried by at least one of: a terminal device capability report message; a terminal device assistance message.

7. The method of any one of claims 1 to 6, wherein, the method further comprising: the terminal device receiving second information, the second information being used to indicate that the terminal device generates the first information according to configuration of a first network device.

8. The method of any one of claims 1 to 6, wherein, the first information being generated according to configuration of a network device that first establishes connection with the terminal device.

9. The method of claim 7 or 8, wherein, the first network device being a master node.

10. The method of any one of claims 1 to 9, wherein, the first information being used to indicate, to a second network device, the communication capability related information of the terminal device that can be used.

11. The method of claim 10, wherein, the second network device being a secondary node.

12. The method of any one of claims 1 to 11, wherein, the method further comprising: the terminal device receiving third information, the third information comprising configuration of the second network device; in a case where the configuration of the second network device conflicts with the first information or configuration of the first network device, the terminal device not accepting the third information and sending, to the second network device, the first information.

13. The method of any one of claims 1 to 12, wherein, the method further comprising: the terminal device sending configuration update information, the configuration update information being used to indicate usage information of configuration of a second network device.

14. The method of claim 13, wherein, a sending condition of the configuration update information comprising at least one of: configuration signaling triggering of a first network device; configuration signaling triggering of a second network device.

15. The method of claim 13 or 14, wherein, the configuration update information being carried by at least one of: a terminal device capability report message; a terminal device assistance message.

16. The method of any one of claims 1 to 15, wherein, the communication capability related information comprising at least one of: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; a physical layer signal processing capability. 17.A communication method, comprising: a first network device sending, to a terminal device, second information, the second information being used to indicate that the terminal device generates first information according to configuration of the first network device, the first information being used to indicate, to a network device, communication capability related information of the terminal device that can be used.

18. The method of claim 17, wherein, the terminal device being in a multi-connection state, the terminal device being connected to multiple different network devices using two or more communication modes.

19. The method of claim 17 or 18, wherein, the first information being used to configure, among multiple network devices, coordination of the communication capability related information of the terminal device that can be used.

20. The method of claim 19, wherein, the method further comprising: The first network device receives configuration update information, the configuration update information being used to indicate usage information of a second network device configuration.

21. The method of claim 20, wherein, The sending condition of the configuration update information comprises at least one of the following: Configuration signaling triggering of the first network device; Configuration signaling triggering of the second network device.

22. The method of claim 20 or 21, wherein, The configuration update information is carried by at least one of the following: A terminal device capability reporting message; A terminal device assistance message.

23. The method of any one of claims 17-22, wherein, The communication capability related information comprises at least one of the following information: A frequency band; A frequency band combination; A frequency range; A maximum power value; A measurement capability; A demodulation capability; A packet header compression capability; A physical layer signal processing capability.

24. The method of any one of claims 17-23, wherein, The first network device is a distributed unit (DU) and / or a central unit (CU). 25.A communication method, comprising: A second network device receiving first information from a terminal device, the first information being used to indicate, to a network device, communication capability related information of the terminal device that can be used.

26. The method of claim 25, wherein, The terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices in at least two communication modes.

27. The method of claim 25 or 26, wherein, The first information is used to configure coordination of the communication capability related information of the terminal device that can be used among multiple network devices.

28. The method of any one of claims 25-27, wherein, The first information is carried by at least one of the following: A terminal device capability reporting message; A terminal device assistance message.

29. The method of any one of claims 25 to 28, wherein, The first information is used to indicate, to a second network device, the communication capability related information of the terminal device that can be used.

30. The method of claim 29, wherein, The second network device is a secondary node.

31. The method of any one of claims 25-30, wherein, The method further comprises: The second network device sending third information, the third information comprising a configuration of the second network device; The second network device receiving new first information, the new first information being sent after the terminal device does not accept the third information in a case where the configuration of the second network device conflicts with the first information or a configuration of a first network device.

32. The method of any one of claims 25-31, wherein, The communication capability related information comprises at least one of the following information: A frequency band; A frequency band combination; A frequency range; A maximum power value; A measurement capability; A demodulation capability; A packet header compression capability; A physical layer signal processing capability. 33.A terminal device, comprising: A first processing unit configured to determine first information, the first information being used to indicate, to a network device, communication capability related information of the terminal device that can be used.

34. The terminal device of claim 33, wherein, The terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices in at least two communication modes.

35. The terminal device of claim 33 or 34, wherein, The first information is used to configure coordination of the communication capability related information of the terminal device that can be used among multiple network devices.

36. The terminal device of any one of claims 33 to 35, wherein, The terminal device further comprises: A first communication unit configured to send the first information.

37. The terminal device of claim 36, wherein, The sending condition of the first information comprises at least one of the following: Configuration signaling triggering of a first network device; Configuration signaling triggering of a second network device; Configuration signaling triggering of a core network; Configuration issued by the first network device or the second network device conflicting with a configuration of another network device; The first information reported to the first network device or the second network device conflicting with a configuration of another network device.

38. The terminal device of any one of claims 33 to 37, wherein, The first information is carried by at least one of the following: A terminal device capability reporting message; A terminal device assistance message.

39. The terminal device of any one of claims 33 to 38, wherein, The terminal device further comprises: a second communication unit configured to receive second information, the second information being used to generate the first information according to the configuration of the first network device.

40. The terminal device of any one of claims 33 to 38, wherein, The first information is generated according to the configuration of the network device that first establishes a connection with the terminal device.

41. The terminal device of claim 39 or 40, wherein, The first network device is a master node.

42. The terminal device of any one of claims 33 to 41, wherein, The first information is used to indicate the communication capability related information of the terminal device that can be used to the second network device.

43. The terminal device of claim 42, wherein, The second network device is a secondary node.

44. The terminal device of any one of claims 33 to 43, wherein, The terminal device further comprises: a third communication unit configured to receive third information, the third information comprising the configuration of the second network device; in the case that the configuration of the second network device conflicts with the first information or the configuration of the first network device, the terminal device does not accept the third information and sends the first information to the second network device.

45. The terminal device of any one of claims 33 to 44, wherein, The terminal device further comprises: a fourth communication unit configured to send configuration update information, the configuration update information being used to indicate the usage information of the configuration of the second network device.

46. The terminal device of claim 45, wherein, The sending condition of the configuration update information comprises at least one of the following: configuration signaling triggering of the first network device; configuration signaling triggering of the second network device.

47. The terminal device of claim 45 or 46, wherein, The configuration update information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

48. The terminal device of any one of claims 33 to 47, wherein, The communication capability related information comprises at least one of the following information: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; a physical layer signal processing capability. 49.A first network device, comprising: a fifth communication unit configured to send second information to a terminal device, the second information being used to indicate that the terminal device generates first information according to the configuration of the first network device, the first information being used to indicate the communication capability related information of the terminal device that can be used to the network device.

50. The first network device of claim 49, wherein, The terminal device is in a multi-connection state, and the terminal device is connected with multiple different network devices using two or more communication modes.

51. The first network device of claim 49 or 50, wherein, The first information is used to configure the coordination of the communication capability related information of the terminal device that can be used among multiple network devices.

52. The first network device of claim 51, wherein, The fifth communication unit is configured to receive configuration update information, the configuration update information being used to indicate the usage information of the configuration of the second network device.

53. The first network device of claim 52, wherein, The sending condition of the configuration update information comprises at least one of the following: configuration signaling triggering of the first network device; configuration signaling triggering of the second network device.

54. The first network device of claim 52 or 53, wherein, The configuration update information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

55. The first network device of any one of claims 49 to 54, wherein, The communication capability related information comprises at least one of the following information: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; a physical layer signal processing capability.

56. The first network device of any one of claims 49 to 55, wherein, The first network device is a distribution unit (DU) and / or a central unit (CU). 57.A second network device, comprising: a sixth communication unit configured to receive first information from a terminal device, the first information being used to indicate the communication capability related information of the terminal device that can be used to the network device.

58. The second network device of claim 57, wherein, The terminal device is in a multi-connection state, and the terminal device is connected to at least two network devices using at least two communication modes.

59. The second network device of claim 57 or 58, wherein, The first information is used to configure, among the multiple network devices, coordination of the communication capability related information of the terminal device that can be used.

60. The second network device of any of claims 57-59, wherein, The first information is carried by at least one of the following: a terminal device capability reporting message; a terminal device assistance message.

61. The second network device of any of claims 57-60, wherein, The first information is used to indicate, to the second network device, the communication capability related information of the terminal device that can be used.

62. The second network device of claim 61, wherein, The second network device is a secondary node.

63. The second network device of any of claims 57-62, wherein, The sixth communication unit is configured to send third information, the third information including a configuration of the second network device; and receive new first information, the new first information being sent after the terminal device does not accept the third information in a case where the configuration of the second network device conflicts with the first information or a configuration of the first network device.

64. The second network device of any of claims 57-63, wherein, The communication capability related information includes at least one of the following: a frequency band; a frequency band combination; a frequency range; a maximum power value; a measurement capability; a demodulation capability; a packet header compression capability; a physical layer signal processing capability.

65. A terminal device comprising: A transceiver, a processor, and a memory, the memory being configured to store a computer program, and the processor being configured to invoke and run the computer program stored in the memory, so that the terminal device performs the method according to any one of claims 1 to 16.

66. A first network device, comprising: A transceiver, a processor, and a memory, the memory being configured to store a computer program, and the processor being configured to invoke and run the computer program stored in the memory, so that the first network device performs the method according to any one of claims 17 to 24.

67. A second network device, comprising: A transceiver, a processor, and a memory, the memory being configured to store a computer program, and the processor being configured to invoke and run the computer program stored in the memory, so that the second network device performs the method according to any one of claims 25 to 32.

68. A chip comprising: A processor is configured to invoke and run a computer program from a memory, so that a device in which the chip is installed performs the method according to any one of claims 1 to 16, or claims 17 to 24, or claims 25 to 32.

69. A computer readable storage medium configured to store a computer program, which, when executed by a device, causes the device to perform the method according to any one of claims 1 to 16, or claims 17 to 24, or claims 25 to 32.

70. A computer program product comprising computer program instructions configured to cause a computer to perform the method according to any one of claims 1 to 16, or claims 17 to 24, or claims 25 to 32.

71. A computer program configured to cause a computer to perform the method according to any one of claims 1 to 16, or claims 17 to 24, or claims 25 to 32.

72. A communication system comprising: a terminal device configured to perform the method according to any one of claims 1 to 16; a first network device configured to perform the method according to any one of claims 17 to 24; A second network device configured to perform the method of any of claims 25-32.

Images