WO2020199761A1 - 一种通信方法和装置 - Google Patents

一种通信方法和装置 Download PDF

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Publication number
WO2020199761A1
WO2020199761A1 PCT/CN2020/075214 CN2020075214W WO2020199761A1 WO 2020199761 A1 WO2020199761 A1 WO 2020199761A1 CN 2020075214 W CN2020075214 W CN 2020075214W WO 2020199761 A1 WO2020199761 A1 WO 2020199761A1
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WIPO (PCT)
Prior art keywords
capability
network device
information
terminal device
access network
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PCT/CN2020/075214
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English (en)
French (fr)
Inventor
李秉肇
邝奕如
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华为技术有限公司
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Publication of WO2020199761A1 publication Critical patent/WO2020199761A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • This application relates to the field of communication, and in particular to a communication method and device.
  • UE user equipment
  • RAT radio access technology
  • the network can request the UE to report capabilities for different RAT types. For example, requesting the UE to report related capabilities supporting long term evolution (LTE), supporting new radio (NR) or supporting multi-RAT dual connectivity (MR-DC) related capabilities .
  • LTE long term evolution
  • NR new radio
  • MR-DC multi-RAT dual connectivity
  • an information element (IE) carrying UE capabilities can be brought to the access network, and the access network then sends the UE capabilities to the core network.
  • the core network can save the UE capabilities and transfer the UE capabilities to the access network in the initial context establishment message. If the UE has no reporting capabilities and the core network does not store the capabilities of the UE, the access network will initiate a capability query request to the UE, and then transfer the UE capabilities to the core network after the UE reports the capabilities.
  • the size of the UE's capability information is gradually increasing, and there are already some UEs whose capability information has reached 100M. Due to the large capacity information of the UE, the storage and transmission consumption of the capacity is relatively large, and the base station and core network are increasingly unable to accurately control the transmission of the capacity. The acquisition and delivery of UE capabilities has become a key technical point that urgently needs to be optimized.
  • the embodiments of the present application provide a communication method and device, which can optimize the acquisition and delivery of UE capabilities.
  • embodiments of the present application provide a communication method, which is applied to a communication device or a chip of a communication device, and the method includes: a first network device sends processing capability indication information and capability filtering parameters to a second network device The first network device receives the capability information of the terminal device from the second network device; wherein the processing capability indication information is used to indicate the processing capability of the first network device, and the capability filtering The parameter is used to indicate the range of capability information.
  • the first network device when the first network device needs to acquire the capabilities of the terminal device from the second network device, it can send at least one of processing capability indication information and capability filtering parameters to more accurately indicate to the second network The device reporting capability. Further, the second network device determines the range and size of the capability report according to at least one of the processing capability indication information and the capability filtering parameter, and sends the capability information to the first network device. Therefore, the method provided in the embodiments of the present application can optimize the acquisition and delivery of UE capabilities.
  • the processing capability indication information includes at least one of the capability processing level of the first network device and the capability processing threshold of the first network device.
  • the capability processing level and capability processing threshold can be used to indicate the size of the processing capability supported by the first network device, and the second network device can determine the size of the sent capability through the processing capability indication information to ensure that it does not exceed the size supported by the first network device.
  • the processing capability range avoids the problem that the first network device cannot correctly or comprehensively learn the UE capability due to excessive capability.
  • the capability filtering parameter includes at least one of bandwidth information, frequency band information, or public land mobile network (PLMN) information.
  • bandwidth information, frequency band information, or PLMN information may be indication information or identification, respectively.
  • Bandwidth information is used to instruct the terminal equipment to report all the bandwidth information it supports
  • frequency band information is used to instruct the terminal equipment to report frequency band information on each bandwidth it supports
  • PLMN information is used to instruct the terminal equipment to report the frequency band used by the PLMN it supports Related capabilities.
  • filtering parameters can carry specific bandwidth information, frequency band information, or PLMN information. These bandwidth information, frequency band information, or PLMN information are not completely determined based on the capabilities of the base station.
  • the terminal equipment is based on these bandwidth information, frequency band information or PLMN information. Determine the scope of the reporting capability set.
  • the first network device can more accurately indicate the capability report range of the second network device through the filtering parameters, which avoids the problem that the base station sets inappropriate filtering parameters and cannot correctly or comprehensively learn the full capabilities of the UE or the specific capabilities of the UE. .
  • At least one of the processing capability indication information and the capability filtering parameter is carried in the NG interface establishment message, the initial context establishment message, the Xn interface establishment message or the capability request message.
  • the first network device is an access network device; the second network device is a core network device or an access network device.
  • the second network device may be a core network device.
  • the core network device saves the terminal device capabilities, the capability information will be pushed to the access network device.
  • the access network device can indicate the information and capabilities through the processing capability
  • At least one of the parameters is filtered to more accurately indicate the range of capability information that it supports to process, avoiding that the access network device cannot learn the required capabilities due to the core network sending too large capability information.
  • the second network device may be an access network device.
  • the terminal device switches between different access network devices, the second access network device will send terminal capability information to the first access network device.
  • At least one of the processing capability indication information and capability filtering parameters can be sent to realize the interaction of the terminal capabilities between the two access network devices, so as to prevent the transmitted capabilities from being too large and exceeding the processing capability supported by the target access network device. range.
  • an embodiment of the present application provides a capability reporting method, which is applied to a communication device or a chip of a communication device, and the method includes: a second network device receives processing capability indication information from a first network device and capability filtering At least one of the parameters; the second network device sends the capability information of the terminal device to the first network device according to at least one of the processing capability indication information and the capability filtering parameter.
  • the processing capability indication information is used to indicate the processing capability of the first network device, and the capability filtering parameter is used to indicate the range of capability information.
  • the processing capability indication information includes at least one of the capability processing level of the first network device and the capability processing threshold of the first network device.
  • the capability information of the terminal device is carried in a context establishment response message, a handover message, or a capability request response message.
  • the second network device sends at least one of the processing capability indication information, the capability filtering parameter, or the integrity identifier to the first network device, where the integrity identifier is used to indicate all Whether the capability information of the terminal device is complete.
  • the second network device determines the capability level and/or capability filtering parameters of the terminal device according to the processing capability indication information and/or capability filtering parameters. /Or range, further, when the second network device sends capability information, it may carry corresponding processing capability indication information and/or capability filtering parameters to indicate the range corresponding to the capability information.
  • the processing capability indication information and/or capability filtering parameters may be sent together with the capability information, for example: capability information carries the processing capability indication information and/or capability filtering parameters or capability information and the processing capability indication information And/or the capability filtering parameters are in the same message or information, and can also be sent independently of the capability information, which is not specifically limited in this application.
  • the second network device when it sends the capability to the first network device, it can carry an integrity identifier to indicate whether the capability information is complete, and the first network device confirms the integrity of the received capability information according to the integrity identifier.
  • the integrity identifier may be sent together with the capability information, or may be sent independently of the capability information, which is not specifically limited in this application. This design can avoid the problem that the first network device cannot know the integrity of the received capability information when the capability sent by the second network device exceeds the processing range of the first network device, and can optimize the capability acquisition of the first network device.
  • the first network device is an access network device; the second network device is a core network device or another access network device.
  • an embodiment of the present application provides a communication method, which is applied to an access network device or a chip of an access network device, and the method includes: the access network device sends capability report instruction information to the terminal device, the The capability report indication information is used to instruct the terminal device to report capability information; the access network device receives the capability information from the terminal device.
  • the capability report indication information includes capability filtering parameters and first indication information.
  • the first indication information is used to indicate whether to apply the capability filtering parameters when the first condition is met.
  • the first condition is that the first capability set can be reported, and the first capability set corresponds to the capability set of the terminal device.
  • the access network device sends filtering parameters to the terminal device according to its own capabilities. At this time, the terminal device determines the capability information according to the filtering parameters and sends it to the access network device without sending Complete capability information.
  • the access network equipment takes the base station as an example.
  • the access network device can send the first indication information to instruct the terminal device that when the capability information can be completely reported, the filter parameter may not be applied, but the complete UE can be sent to the access network device. ability.
  • the method provided in the embodiment of the present application can solve the problem that the base station cannot learn the full capabilities of the UE due to the filtering parameters set by the base station.
  • the capability report indication information includes a segment number threshold, where the segment number threshold is the maximum number of segments for capability information transmission.
  • the access network device receives N segments from the terminal device, the N segments carry capability information of the terminal device, and the N is less than or equal to the threshold number of segments.
  • the segment number threshold is used to instruct the terminal device to report capabilities to the access network device, and the maximum number of segments supported by the access network device is determined according to the segment number threshold in the capability report indication information to avoid the terminal device’s ability to send The number of segments exceeds the processing capability of the access network equipment.
  • the access network device receives an integrity identifier from the terminal device, where the integrity identifier is used to indicate whether the capability information of the terminal device is complete.
  • the access network device can confirm the integrity of the received capability according to the integrity identifier, so as to learn the UE capability more accurately.
  • the access network device sends an integrity identifier to the core network device, where the integrity identifier is used to indicate whether the capability information of the terminal device is complete.
  • the access network device can send the integrity identifier from the terminal device to the core network device. This design can enable the network side to know the integrity of the terminal device's capabilities.
  • the access network device may send a capability filtering parameter to the core network device, where the capability filtering parameter includes at least one of bandwidth information, frequency band information, or public land mobile network PLMN information.
  • the capability filtering parameter may be pre-configured or from an access network device.
  • the access network device may carry corresponding capability filtering parameters while reporting the capability to the core network to indicate the range corresponding to the capability information.
  • the access network device before the access network device sends the capability request to the terminal device, the access network device receives the capability query message sent by the core network device, or the access network device receives the initial context establishment message sent by the core network device, where No information about the capabilities of the terminal device is carried. After confirming that the access network device needs to query the capability information of the terminal device, it sends a capability report instruction message to the terminal device.
  • an embodiment of the present application provides a capability reporting method, which is applied to a terminal device or a chip of a terminal device, and the method includes: the terminal device receives capability reporting instruction information from an access network device; the terminal device Sending the capability information to the access network device according to the capability report instruction information.
  • the capability report instruction information is used to instruct the terminal device to report capability information.
  • the capability report instruction information includes first instruction information; the terminal device sends the capability information to the access network device according to the capability report instruction information. Specifically, the terminal device sends capability information to the access network device according to the first indication information; wherein the first indication information is used to indicate whether to apply the capability filtering parameter when the first condition is met, and the capability filtering parameter is used to indicate the capability
  • the first condition is that the first capability set can be reported, and the first capability set corresponds to the capability set of the terminal device.
  • the access network device can send the first indication information to instruct the terminal device to not apply the capability filtering parameter when it can report all its capability information, but send the complete information to the access network device.
  • UE capability information Furthermore, the method provided by the embodiment of the present application enables the terminal device to still report the complete capability to the network device when receiving the filtering parameter.
  • the capability report indication information includes a threshold for the number of segments, and the threshold for the number of segments is the maximum number of segments for capability information transmission.
  • the terminal device sends the capability information to the access network device according to the capability report instruction information. Specifically, the terminal device sends N segments to the access network device to carry the capability information of the terminal device, where N is less than or equal to the threshold number of segments.
  • the method provided by this implementation ensures that the number of segments of the capability information sent by the terminal device is within the range supported by the access network device, and avoids the failure of the access network device's processing capability information due to the excessive number of segments.
  • the terminal device carries an integrity identifier when sending the capability information, and the integrity identifier is used to indicate whether the capability information of the terminal device is complete.
  • the terminal device can indicate the integrity of the access network device capability information by sending the integrity identifier, so as to optimize the transmission of the UE capability.
  • the capability report indication information includes capability filtering parameters.
  • the terminal device confirms the capability information according to the capability filtering parameters, if the terminal device knows the UE capability identifier corresponding to the capability filtering parameter, then The terminal device can send the above-mentioned identifier to the access network device without sending corresponding capability information.
  • the UE capability corresponding to the capability filtering parameter refers to the UE capability determined by the terminal device according to the range indicated by the capability filtering parameter.
  • the network device queries the capability information of the terminal device and assigns an identifier based on the same capability filtering parameter, and the terminal device receives the identifier from the network device and records the correspondence between the identifier and the capability filtering parameter.
  • an embodiment of the present application provides a communication method, which is applied to a core network device or a chip of a core network device, and the method includes: the core network device receives capability information of the terminal device from the access network device, and The capability information includes third indication information; where the third indication information includes at least one of a capability filtering parameter and an integrity identifier, the capability filtering parameter is used to indicate the range of capabilities expected to be received, and the integrity identifier is used for Indicate whether the capability information of the terminal device is complete; the core network device determines whether all required terminal capabilities are received according to the third instruction information.
  • the core network device when the core network device acquires all the capabilities of the UE or part of the capabilities of the UE, it can determine the corresponding range of the capability information through the received capability information and capability filtering parameters, and use the integrity identifier to determine The integrity of the received capabilities is determined, so that the core network device can learn the UE capabilities more accurately, and the core network device can determine whether it needs to query the UE capabilities from other base stations based on this.
  • the core network device may assign an identifier to the capability information, and send the identifier to the terminal device through the access network device.
  • the symbol corresponds to the capability filter parameter.
  • the transfer identifier can be used to replace the transmission capability information to reduce signaling consumption during the transmission of the capability information.
  • an embodiment of the present application provides a communication method.
  • the method includes: receiving a first capability identifier from a second network device and capability information of a terminal device.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier.
  • the method may be executed by a first communication device, and the first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the first communication device is a network device, or a chip set in the network device for realizing the function of the network device, or other component used for realizing the function of the network device.
  • the first communication device is the first network device.
  • the first network device can notify the second network device through the first indication information that the previously received capability information and capability identifier cannot be used, so that the second network device can reallocate the capability identifier, and then The consistency of the UE capability ID can be guaranteed, so that in the subsequent UE capability information transmission process, the UE capability ID is used to improve the transmission efficiency of the communication system.
  • the first indication information includes the first capability identifier. Furthermore, it can be clearly indicated that the first capability identifier of the second network device is not used by the first network device, or the capability information of the terminal device corresponding to the first capability identifier is not used by the first network device.
  • the first indication information may be carried in a UE radio capability indication message and sent to the second network device.
  • the second network device may determine the terminal device capability information that the first network device can process, and assign a capability identifier to the terminal device capability information according to the first indication information.
  • an embodiment of the present application provides a communication method, which includes sending a first capability identifier and capability information of a terminal device to a first network device.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier.
  • the method may be executed by a second communication device, and the second communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip.
  • the second communication device is a network device, or a chip set in the network device for realizing the function of the network device, or other component used for realizing the function of the network device.
  • the second communication device is a second network device.
  • the first network device can notify the second network device through the first indication information that the previously received capability information and capability identifier cannot be used, so that the second network device can reallocate the capability identifier, and then The consistency of the UE capability ID can be guaranteed, so that in the subsequent UE capability information transmission process, the UE capability ID is used to improve the transmission efficiency of the communication system.
  • the first indication information includes the first capability identifier. Furthermore, it can be clearly indicated that the first capability identifier of the second network device is not used by the first network device, or the capability information of the terminal device corresponding to the first capability identifier is not used by the first network device.
  • the first indication information may be carried in a UE radio capability indication message and sent to the second network device.
  • the second network device may determine the terminal device capability information that the first network device can process, and assign a capability identifier to the terminal device capability information according to the first indication information.
  • an embodiment of the present application provides a communication device that includes a memory and at least one processor.
  • the memory is used to store instructions or programs.
  • the processor executes the instructions or programs, the first Aspect to the seventh aspect and the method described in any one of the possible implementation manners.
  • an embodiment of the present application provides a communication device, which is characterized by including: a sending unit, configured to send at least one of processing capability indication information and capability filtering parameters to a network device, where the processing capability indication information is used for Indicate the processing capability of the first network device, and the capability filtering parameter is used to indicate the range of capability information; the receiving unit is used to receive the capability information of the terminal device from the network device.
  • an embodiment of the present application provides a communication device, characterized by comprising: a receiving unit configured to receive at least one of processing capability indication information and capability filtering parameters from a network device, the processing capability indication information Used to indicate the processing capability of the network device, the capability filtering parameter is used to indicate the range of capability information; the sending unit is configured to send the terminal to the network device according to at least one of the processing capability indication information and the capability filtering parameter The capability information of the device.
  • an embodiment of the present application provides a communication device, which is characterized by comprising: a sending unit, configured to send capability report instruction information to a terminal device, where the capability report instruction information is used to instruct the terminal device to report capability Information; a receiving unit for receiving capability information from the terminal device.
  • an embodiment of the present application provides a communication device, which is characterized by comprising: a receiving unit, configured to receive capability report instruction information from an access network device; and a sending unit, configured to report instruction information according to the capability , Sending capability information to the access network device.
  • an embodiment of the present application provides a communication device, which is characterized by comprising: a receiving unit, configured to receive capability information of a terminal device from an access network device, where the capability information includes third indication information;
  • the third indication information includes at least one of a capability filter parameter and an integrity identifier, the capability filter parameter is used to indicate the scope of the capability information, and the integrity identifier is used to indicate whether the capability information of the terminal device is complete;
  • the receiving unit is further configured to determine whether the capability information is completely received according to the third indication information.
  • a communication device is provided, for example, the communication device is the first communication device as described above.
  • the first communication device is configured to execute the method in the foregoing first aspect or any possible implementation manner.
  • the first communication device may include a module for executing the method in the first aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may also be the same functional module, but can implement different functions.
  • the first communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the first communication device is the first network device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or, the transmitter and the receiver) is, for example, a communication interface in the chip, and the communication interface is connected to the radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components. among them,
  • the processing module is configured to receive the first capability identifier from the second network device and the capability information of the terminal device through the transceiver module.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device.
  • the processing module is further configured to send first indication information to the second network device through the transceiver module.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier.
  • a communication device is provided, for example, the communication device is the second communication device as described above.
  • the second communication device is used to execute the method in the sixth aspect or any possible implementation manner.
  • the second communication device may include a module for executing the method in the sixth aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
  • the transceiver module may include a sending module and a receiving module.
  • the sending module and the receiving module may be different functional modules, or may be the same functional module, but can implement different functions.
  • the second communication device is a communication device, or a chip or other component provided in the communication device.
  • the communication device is a network device.
  • the second communication device is a second network device.
  • the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor.
  • the sending module may be implemented by a transmitter
  • the receiving module may be implemented by a receiver.
  • the transmitter and the receiver may be different functional modules, or may be the same functional module, but can implement different functions.
  • the transceiver is realized by, for example, an antenna, a feeder, and a codec in the communication device.
  • the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, and the communication interface is connected to a radio frequency transceiver component in the communication device to Information is sent and received through radio frequency transceiver components. among them,
  • the processing module is configured to send the first capability identifier and the capability information of the terminal device to the first network device through the transceiver module.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device.
  • the processing module is configured to receive the first indication information from the first network device through the transceiver module.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier.
  • a chip in a sixteenth aspect, includes a processor for supporting a communication device to implement the functions involved in any implementation manner of the foregoing aspects.
  • the chip further includes a memory, and the memory is used to store necessary program instructions and data of the communication device.
  • an embodiment of the present application provides a computer storage medium storing a computer program, and the computer program is stored thereon.
  • the computer program is executed by a processor, the first aspect to the seventh aspect and the foregoing aspects are implemented. The method described in any possible implementation.
  • Fig. 1 is a schematic diagram of a system architecture of a communication method in the prior art
  • FIG. 2 is a schematic diagram of signal interaction in a method for acquiring capability information according to capability identifiers
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 4 is a schematic structural diagram of an access network device provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of signal interaction suitable for a communication method according to an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of an access network device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 8 is another schematic diagram of signal interaction suitable for communication methods provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of a core network device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of yet another access network device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 12A is another schematic diagram of signal interaction suitable for communication methods according to an embodiment of this application.
  • FIG. 12B is a method for transmitting capability identification and capability information provided by an embodiment of this application.
  • FIG. 12C is another method for transmitting capability identification and capability information provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the UE capability structure of 5G NR may include bandwidth information and feature set combination information supported by the UE in the NR.
  • the 5G NR UE capability structure may also include other radio frequency capabilities, physical capabilities, and measurement capabilities.
  • the UE capability structure of LTE may include band combination (BC) and feature set information supported by the UE in LTE.
  • the UE capability structure of LTE may also include other radio frequency capabilities, physical capabilities, and measurement capabilities.
  • EN-DC UE capability structure in E-UTRA-NR Dual Connectivity (EN-DC) of evolved universal land-based wireless access and new air interface: EN-DC UE capability structure includes LTE, multi-mode access dual connectivity Technology (Multi-RAT Dual Connectivity, MR-DC) and NR three capabilities.
  • the network needs to obtain the BC in the MR-DC capability, the feature set information in the LTE capability, and the feature set information in the NR capability to fully obtain the EN-DC capability.
  • the base station requests the feature set information in the LTE capability from the UE, it needs to carry the NR and LTE bands in the filtering parameters.
  • MR-DC can include new air interface and evolved universal mobile communication system dual connection (NR-EUTRAN dual connection, NE-DC), evolved universal mobile communication system and new air interface dual connection (EUTRAN-NR dual connection, EN- DC) and the next-generation evolved universal mobile communication system and the new air interface dual connection (Next Generation EUTRAN-NR dual connection, NGEN-DC) and so on.
  • DC stands for dual connectivity
  • E universal mobile telecommunications system (UMTS) terrestrial radio access (evolved-UMTS terrestrial radio access, E-UTRA), that is, the fourth generation (4G) Radio access network, also known as long term evolution (LTE) radio access network
  • LTE long term evolution
  • N stands for NR, which is 5GNR
  • NG stands for next generation core, which is 5G core network.
  • EN-DC refers to the dual connection of 4G wireless access network and 5G NR. That is to say, in the EN-DC scenario, the UE is connected to an LTE base station (e.g., eNB) and an NR base station (e.g., gNB) at the same time, and services are provided by these two base stations at the same time.
  • LTE base station e.g., eNB
  • NR base station e.g., gNB
  • the LTE base station is the master node (master node, MN).
  • NE-DC refers to the dual connection of 5G NR and 4G wireless access networks, and the NR base station is the master node.
  • NGEN-DC refers to the dual connection between the 4G radio access network and 5G NR under the 5G core network, and the 4G base station (LTE base station, such as eNB) is the master node.
  • FIG. 1 it is a schematic diagram of the communication system architecture, including access network equipment, core network equipment and terminal equipment.
  • the access network device After the RRC connection between the terminal device and the access network device is established, the access network device will send a context establishment message to the core network device. If the core network device has stored the capability of the terminal device, the core network device will send the capability to the access network device during the context establishment process, and the access network device can use the capability to communicate with the terminal device. If the capability of the terminal device is unknown, the access network device needs to request a capability report from the terminal device. After the terminal device reports the capability to the access network device, the access network device communicates with the terminal device according to the capability and sends the capability To the core network equipment.
  • the network side cannot control the reporting of the UE's capabilities, resulting in the inability to fully understand all the capabilities of the UE or the specific capabilities of the UE.
  • the segmented transmission mechanism in the current wireless communication system can split an overly large message into multiple small messages for transmission.
  • radio resource control (RRC) messages can transmit a maximum of 9 kilobytes (kilobytes, KB).
  • a segmented mechanism can be introduced to transmit. For example, the size of 20KB The message is divided into two 9KB messages and one 2KB message for transmission.
  • the base station does not support the processing of the segmentation mechanism, or does not support the processing of too much segmentation information, the information received by the base station will be incomplete and the base station cannot know the integrity of the received information.
  • Figure 2 shows a capability reporting method based on capability identification (capability identity, capability ID).
  • a capability identifier can be used to identify a specific set of capabilities.
  • a capability identifier may be related to the capability of a type of UE.
  • the UE may report the capability identifier of the UE to the core network. If the core network has saved the capability corresponding to the capability identifier, the core network may send the capability to the base station, and the UE is no longer required to report the capability. If the core network does not save the capability corresponding to the capability identifier, it needs to request the capability from the UE, and record the capability and the capability identifier.
  • the capability ID usually corresponds to the full set of UE capabilities, or corresponds to the UE capabilities filtered based on a set of common filtering parameters of the public land mobile network (PLMN).
  • PLMN public land mobile network
  • the core network finds its stored corresponding UE capabilities according to the capability ID.
  • the size of the UE capability information is 100 megabytes (MB).
  • the core network sends the UE capability information to the base station, but the base station can only analyze and process the information. RRC messages exceeding 10MB in size cause the base station to fail to know the required UE capabilities.
  • the embodiments of the present application provide a communication method and a capability reporting method, which optimize terminal device capability reporting by sending processing capability indication information and/or capability filtering parameters, and enable the base station and core network to perform capability reporting indication information. Be able to learn all or specific capabilities of the UE.
  • the terminal device may also be called a terminal (terminal), UE, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), and so on.
  • the terminal equipment can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) ), wireless terminals in unmanned driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, and smart cities Wireless terminals in the (smart city), wireless terminals in the smart home (smart home), etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
  • the access network equipment corresponds to different equipment in different systems.
  • the RAN device in the second generation (2G) communication system, can correspond to the base station and the base station controller; in the third generation (3G) communication system, the RAN device can correspond to the base station and the radio network controller (radio network controller, RNC); in 4G, RAN equipment can correspond to eNB; in 5G, RAN equipment can correspond to gNB, centralized unit (CU) or distributed unit (DU), etc. It can correspond to new network side equipment in future evolution or emerging systems.
  • CN equipment corresponds to different equipment in different systems.
  • it can correspond to the service support node (serving GPRS support node, SGSN) of general packet radio service (general packet radio service, GPRS) and/or the gateway support node (gateway GPRS Support Node, GGSN) of GPRS;
  • serving GPRS support node serving GPRS support node, SGSN
  • gateway support node gateway support node (gateway GPRS Support Node, GGSN) of GPRS
  • MME mobility management entity
  • S-GW serving gateway
  • 5G it can correspond to Access and Mobility Management Function (AMF), Session Management Function (SMF) or User plane Function ( UPF).
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User plane Function
  • the functions implemented by the first network device, the second network device, the terminal device, the core network device, or the access network device in the embodiments of the present application may be implemented by one network element or shared by multiple network elements. Implementation may also be implemented by one or more functional modules of one network element, which is not specifically limited in the embodiment of the present application. It is understandable that the above-mentioned functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).
  • FIG. 3 is a schematic diagram of the hardware structure of an apparatus 300 provided by an embodiment of the application.
  • the apparatus 300 includes at least one processor 301 configured to implement the functions of the terminal device provided in the embodiment of the present application.
  • the device 300 may also include a bus 302 and at least one communication interface 304.
  • the device 300 may also include a memory 303.
  • the processor may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processing (DSP), or a micro-processing unit.
  • CPU central processing unit
  • NP network processor
  • DSP digital signal processing
  • PLD programmable logic device
  • the processor may also be any other device with processing functions, such as a circuit, a device, or a software module.
  • the bus 302 can be used to transfer information between the aforementioned components.
  • the communication interface 304 is used to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.
  • the communication interface 304 may be an interface, a circuit, a transceiver or other devices capable of realizing communication, which is not limited in this application.
  • the communication interface 304 may be coupled with the processor 301.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the above transceiver when the terminal device is used as a receiving end device, the above transceiver can be replaced with a receiver, and when the terminal device is used as a transmitting end device, the above transceiver can be replaced by a transmitter.
  • the terminal device it does not rule out whether the terminal device is used as a receiving end device or as a transmitting end device, the terminal device has both a sending function and a receiving function, that is, the case where the above-mentioned transceiver is included.
  • the memory may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or storage
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • magnetic disk storage media or other magnetic storage devices or can be used to carry or store desired commands or data structures
  • Program code and any other medium that can be accessed by the computer but not limited to this.
  • the memory may exist independently, or may be coupled with the processor, for example, through the bus 302.
  • the memory can also be integrated with the processor.
  • the memory 303 is used to store program instructions, and the processor 301 can control the execution, so as to implement the communication method provided in the following embodiments of the present application.
  • the processor 301 is configured to call and execute instructions stored in the memory 303, so as to implement the communication method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
  • the memory 303 may be included in the processor 301.
  • the processor 301 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 3.
  • the apparatus 300 may include multiple processors, such as the processor 301 and the processor 307 in FIG. 3. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the apparatus 300 may further include an output device 305 and an input device 306.
  • the output device 305 is coupled with the processor 301, and can display information in a variety of ways.
  • the output device 305 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • the input device 306 is coupled to the processor 301 and can receive user input in a variety of ways.
  • the input device 306 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • the aforementioned apparatus 300 may be a general-purpose device or a special-purpose device.
  • the terminal device 300 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in Figure 3 equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the device 300.
  • FIG. 4 shows a schematic diagram of the hardware structure of an apparatus 400 provided by an embodiment of the application.
  • the apparatus 400 includes at least one processor 401, configured to implement the functions of the terminal device provided in the embodiment of the present application.
  • the device 400 may also include a bus 402 and at least one communication interface 404.
  • the device 400 may also include a memory 403.
  • the bus 402 can be used to transfer information between the aforementioned components.
  • the communication interface 404 is used to communicate with other devices or communication networks, such as Ethernet, RAN, and WLAN.
  • the communication interface 404 may be an interface, a circuit, a transceiver or other devices capable of realizing communication, which is not limited in this application.
  • the communication interface 404 may be coupled with the processor 401. It should be noted that, in this embodiment of the application, when the access network device or core network device is used as the receiving end device, the above transceiver can be replaced with a receiver. When the access network device or core network device is used as the transmitting end device , The above transceiver can be replaced with a transmitter.
  • the access network device or the core network device has both the sending function and the receiving function, that is, the above-mentioned transceiver is included.
  • the memory 403 is used to store program instructions, and the processor 401 can control the execution, so as to implement the communication method provided in the following embodiments of the present application.
  • the processor 401 is configured to call and execute instructions stored in the memory 403, so as to implement the communication method provided in the following embodiments of the present application.
  • the memory 403 may be included in the processor 401.
  • the processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.
  • the apparatus 400 may include multiple processors, such as the processor 401 and the processor 405 in FIG. 4. Each of these processors can be a single-core processor or a multi-core processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • each device may store UE capabilities, and may also learn or determine UE capabilities in a certain manner.
  • the device When the product is realized, the device itself may store the corresponding information, or may not store it, but obtain or determine the corresponding information.
  • the embodiments of the present application are described by using exemplary descriptions when related expressions are involved. Those skilled in the art can understand that the term "storage" does not affect the UE capability of each device. Existence is limited.
  • an embodiment of the present application provides a communication method, including steps 501-504.
  • the communication method includes a capability reporting method.
  • the first network device sends at least one of processing capability indication information and capability filtering parameters to a second network device.
  • the processing capability indication information is used to indicate the processing capability of the first network device
  • the capability filtering parameter is used to indicate the range of capability information.
  • the processing capability indication information is used to indicate the processing capability of the first network device for the RRC message, such as the processing capability of the UE capability information.
  • the second network device receives at least one of the processing capability indication information and the capability filtering parameter from the first network device. Further, the second network device determines the capability information of the terminal device according to at least one of the processing capability indication information and capability filtering parameters. It should be noted that the "capability information of the terminal device" determined here is the capability information that needs to be reported or will be reported.
  • the second network device sends the capability information of the terminal device to the first network device.
  • the first network device receives capability information of the terminal device from the second network device.
  • the first network device can instruct the second network device to send the capability information of the terminal device by sending at least one of the processing capability indication information and the capability filtering parameter, so as to realize the second network device Properly transfer capability information.
  • step 501 For step 501:
  • the first network device sends processing capability indication information to the second network device.
  • the processing capability indication information is used to indicate the processing capability of the first network device.
  • the processing capability indication information may include the capability processing level of the first network device and the capability processing threshold of the first network device.
  • the "capability processing” reflects the size of the capability information that can be processed by the first network device.
  • the capability processing level of the first network device includes the level of the capability information that the first network device can process, and the level may include the level of the capability information that the first network device can process, and the maximum Level or all levels.
  • the capability processing threshold of the first network device includes a threshold of the size of capability information that can be processed by the first network device, and the capability information size threshold may be the maximum value of the size of the capability information that can be processed by the first network device. For example, suppose the capacity information can be divided into A, B, and C levels from high to low.
  • level A represents the ability to process information containing an unlimited number of frequency band combinations
  • level B represents the ability to process information containing no more than 1000 frequency band combinations
  • C represents the ability to process information containing no more than 300 frequency band combinations
  • the capability level that the first network device can handle is level B.
  • the second network device receives the capability indication information and determines that the capability information level of the first network device is level B, then the second network device Send capability information that does not exceed level B to the first network device.
  • the threshold of the capacity information that can be processed by the first network device is 2KB
  • the second network device receives the capacity information and determines that the maximum value of the processing capacity supported by the first network device is 2KB
  • the second The network device sends capability information with a size not exceeding 2KB to the first network device.
  • ABC is only an example, and any other expression that can identify multiple levels can be used for level indication, and the specification of this application does not specifically limit it.
  • the first network device sends the capability filtering parameter to the second network device.
  • the capability filtering parameter is used to indicate the range of capability information.
  • the capability filtering parameter includes at least one of bandwidth information, frequency band information, or PLMN information.
  • at least one of the bandwidth information, frequency band information or PLMN information may be indicated by one or more indication information, or may be carried in one or more messages.
  • the second network device determines the range of the reporting capability set according to at least one of the bandwidth information, frequency band information or PLMN information.
  • the bandwidth information is used to instruct the second network device to report the acquired bandwidth information supported by the terminal device.
  • the bandwidth information may instruct the second network device to report all the bandwidth information supported by the terminal device it acquires, or it may indicate the second network The device reports a certain range of bandwidth information.
  • the frequency band information is used to instruct the second network device to report the stored frequency band information supported by the terminal device, and may instruct it to report all or a specified range of frequency band information.
  • the frequency band information carried in the capability filtering parameters includes BC1, BC2, and BC3
  • the second network device can select all capability information related to BC1, BC2, and BC3 among the capabilities supported by the terminal device stored in it and send it to the first network equipment.
  • the PLMN information is used to instruct the second network device to report its stored information about the frequency band used by the PLMN supported by the terminal device, and may instruct it to report all or a specified range of PLMN frequency band information.
  • the second network device determines all frequency bands included in the PLMN according to the PLMN information, and determines the capability information that needs to be reported based on these frequency bands. It is understandable that the second network device may determine all frequency bands included in the PLMN information according to the correspondence between the PLMN and the frequency bands pre-configured or obtained from the network side.
  • the first network device sends processing capability indication information and capability filtering parameters to the second network device.
  • processing capability indication information and capability filtering parameters please refer to the above description.
  • the second network device may determine the capability information of the terminal device that needs to be reported according to the processing capability indication information and the capability filtering parameter.
  • the second network device first performs filtering according to capability filtering parameters, and then sends according to the processing capability indication information.
  • the first network device is an access network device
  • the second network device may be a core network device or another access network device.
  • the core network device After the terminal device is connected to the access network device, when the core network device has stored the capabilities of the terminal device, the core network device will establish the capability information of the terminal device in the context In the process, it is sent to the access network device, and the access network device can use the received capability information to communicate with the terminal device. Prior to this, the access network device sends at least one of the processing capability indication information and the capability filtering parameter to the core network device, which is used to indicate the capability information that the access network device can process, so as to prevent the core network device from sending that the access network device cannot Processing capability information.
  • the second network device is another access network device
  • the access network device is a base station
  • the first base station after the terminal device is handed over from the second base station to the first base station, the first base station sends all the information to the second base station.
  • the first base station can communicate with the terminal device based on the received capability information.
  • the first base station can indicate to the second base station the processing capability information it supports by sending at least one of the processing capability indication information and the capability filtering parameter, so as to prevent the second base station from sending excessive capability information, which may lead to the first A base station cannot obtain effective terminal equipment capabilities.
  • the first network device may establish a message through the NG interface, or through the initial UE message, or through the Xn interface, or through the base station handover message, or through the capability request message to process At least one of the capability indication information and the capability filtering parameter is sent to the second network device.
  • At least one of the processing capability indication information and the capability filtering parameter may be filled in reserved bits in the capability request, or may be filled in newly added bits, which is not limited in this application.
  • processing capability indication information and/or capability filtering parameters can be used in combination with RAT type to indicate the capability of the terminal device to report one or more RATs, that is, the capability indication information is only valid for the requested RAT .
  • the second network device receives the processing capability indication information and/or capability filtering parameters, and determines the terminal device capability information that needs to be reported:
  • the second network device receives the processing capability indication information from the first network device.
  • the indication information of the processing capability includes the level of the size of the capability information that the first network device can process or the upper limit of the size of the capability information that the first network device can process.
  • the second network device determines the capability information that the terminal device supports processing stored therein. If the size of the capability information is less than or equal to the size of the capability information indicated by the capability indication information, the second network device may send the complete information to the first network device. Capability information; otherwise, the second network device determines that part of the terminal device capability information is sent to the first network device.
  • the second network device may acquire part of the capability information according to the upper limit value of the capability information in the stored capability information of the terminal device.
  • the second network device obtains the first 32 or The ability information of the last 32 BCs is sent to the first network device, where the order of the front and back may indicate the order of storage by the first network device or the order of reading by the second network device.
  • filtering parameters for example, the second network device is pre-configured with specific frequency band and/or bandwidth information, then the second network device selects a specific part and sends it to the base station according to the second network device. For example, if BC1 and BC2 are pre-configured, the second network device selects the capability information corresponding to BC1 and BC2 and sends it to the first network device.
  • the second network device receives the capability filtering parameter from the first network device, which is used to indicate the range of capability information.
  • the capability filtering parameter For the specific method, refer to the related description of step 501.
  • the second network device receives the processing capability indication information and capability filtering parameters from the first network device.
  • processing capability indication information and capability filtering parameters please refer to the above description.
  • the second network device first selects a combination of some parts of the stored capability information supported by the terminal device according to the capability filtering parameters, and if the information size of the selected part is less than or equal to the size indicated by the indication information, it directly selects A certain part of the information is sent to the first network device, otherwise, according to the capacity limit, in the selected combination, a part of the frequency band is combined and sent.
  • the second network device first selects the one related to BC1, BC2 or BC3 among the stored terminal device capabilities For all capability information, if the sum of the selected information in this part is less than or equal to the capability size indicated by the indication information, then the capability information of the selected part can be directly sent to the first network device, otherwise, it needs to be Obtain the front or back capabilities in the information, and the information size of the acquired capabilities does not exceed the upper limit of the capability information, and the acquired capability information is sent to the first network device. It should be noted that the order here can be Indicates the order of storage by the first network device or the order of reading by the second network device.
  • the second network device sends the capability information of the terminal device determined in step 502 to the first network device according to the processing capability indication information and/or capability filtering parameters.
  • the method further includes step 5031.
  • the second network device may send at least one of processing capability indication information, capability filtering parameters, and integrity identification to the first network device.
  • at least one of the processing capability indication information, capability filtering parameter, and integrity identifier may be carried in the capability report RRC message, or may be carried in capability information information elements in other RRC messages. Make a limit.
  • the second network device determines part of its stored terminal device capability information according to the processing capability indication information of the first network device, then the second network device sends the capability information to the first network device.
  • the processing capability indication information of the first network device may be sent to the first network device to indicate the range corresponding to the sent capability information.
  • the second network device sends the processing capability indication information to the first network device, it may be sent together with the capability information.
  • the capability information carries the processing capability indication information or the capability information and The processing capability indication information is in the same message or information, and may also be sent independently of the capability information.
  • the second network device determines part of its stored terminal device capability information according to the capability filtering parameters, then when the second network device sends the capability information to the first network device, it can send it to the first network device.
  • the capability filtering parameter of a network device is used to indicate the range corresponding to the capability information sent.
  • the capability filtering parameter may be sent together with the capability information.
  • the capability information carries the capability filtering parameter or the capability information is in the same message or information as the capability filtering parameter, or it may be independent of the capability. Information sent.
  • the integrity identifier of the capability information is sent to indicate whether the terminal device capability information that needs to be sent is completely sent.
  • the first network device determines whether the received capability information is complete according to the integrity identifier. Specifically, the second network device judges whether the capabilities required to be queried or requested are all included in the reported capability information, if they are included, the capability information is considered complete, otherwise it is considered incomplete. For example, if the first network device sends the capability filter parameter, and the second network device determines that the capability corresponding to the capability filter parameter is included in the sent capability information, the capability information is considered complete.
  • the integrity identifier may be sent together with the capability information.
  • the capability information carries the integrity identifier or the capability information is in the same message or information as the integrity identifier, or it may be independent of the capability. Information sent.
  • the second network device may send at least two of the processing capability indication information, the capability filtering parameter, and the integrity identifier to the first network device. kind or all.
  • the second network device may send the capability information to the first network device through the initial context establishment message, or through the base station handover message, or through the capability request response message.
  • the first network device receives the capability information from the second network device.
  • the first network device receives at least one of the capability filtering parameter and the integrity identifier from the second network device, and the first network device can determine whether the capability information sent by the second network device is complete based on this. For the specific method, refer to the related description of step 503.
  • the first network device when it needs to acquire the capability of the terminal device from the second network device, it may send processing capability indication information and/or capability filtering parameters to the second network device. After receiving it, the second network device determines the size of the capability information according to the processing capability indication information and/or performs capability information filtering according to the capability filtering parameters, and sends the determined capability information to the first network device.
  • the second network device when the second network device sends the capability information of the terminal device to the first network device, if the sent capability information is too large, it may exceed the processing range supported by the first network device, or the second network device The capability information is sent in segments, and the first network device may not support segmented processing.
  • the method provided by the embodiments of the present application enables the first network device to indicate the range of capability information that it supports to process, and then the second network device sends information within the indicated capability range, avoiding the occurrence of the failure of the capability information received by the first network device. Comprehensive or unmanageable.
  • the method provided in the embodiment of the present application can avoid the purpose caused by excessive capacity information when the UE is handed over between base stations.
  • the base station cannot correctly or comprehensively learn all the capabilities of the UE or the specific capabilities of the UE.
  • the methods provided in the embodiments of the present application are introduced from the perspective of the first network device, the second network device, and the interaction between them.
  • the first network device and the second network device may include a hardware structure and/or a software module, in the form of a hardware structure, a software module, or a hardware structure plus a software module To achieve the above functions. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 6 shows a possible structural schematic diagram of the apparatus 6 involved in the foregoing embodiment.
  • the apparatus may be an access network device, and the access network device includes :Sending unit 601 and receiving unit 602.
  • the sending unit 601 is configured to send at least one of processing capability indication information and capability filtering parameters to a network device, where the processing capability indication information is used to indicate the processing capability of the first network device, and The capability filtering parameter is used to indicate the range of capability information;
  • the receiving unit 602 is configured to receive capability information from the terminal device of the network device, and the capability information corresponds to processing capability indication information and/or capability filtering parameters.
  • the sending unit 601 may be used to support the access network device to execute the process 501 in FIG. 5.
  • the receiving unit 602 may be used to support the access network device to perform the process 504 in FIG. 5.
  • FIG. 7 shows a possible structural schematic diagram of the apparatus 7 involved in the above-mentioned embodiment.
  • the apparatus may be an access network device or a core network device.
  • the device includes: a receiving unit 701 and a sending unit 702.
  • the receiving unit 701 is configured to receive at least one of processing capability indication information and capability filtering parameters from an access network device, where the processing capability indication information is used to indicate the processing capability of the network device, and the capability filtering parameter is
  • the sending unit 702 is configured to send the capability information of the terminal device to the access network device according to at least one of the processing capability indication information and the capability filtering parameter.
  • the receiving unit 701 may be used to support the access network device or the core network device to perform the process 502 in FIG. 5.
  • the sending unit 702 may be used to support the access network device or the core network device to perform the process 503 in FIG. 5.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also be a separate physical presence, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the receiving unit and the sending unit may be integrated into the transceiver unit.
  • an embodiment of the present application provides a communication method, including steps 801-806.
  • the communication method includes a method for reporting the capability of a terminal device. It should be noted that some terms appearing in this embodiment 2 have the same meanings as those of the same terms in embodiment 1, and for specific explanation, please refer to the description of embodiment 1.
  • the access network device sends capability report instruction information to a terminal device, where the capability report instruction information is used to instruct the terminal device to report capability information.
  • the terminal device receives the capability report instruction information sent by the access network device. Further, the terminal device determines capability information according to the capability report instruction information.
  • the terminal device sends the capability information to the access network device according to the capability report instruction information.
  • the access network device receives capability information from the terminal device.
  • the method further includes step 805.
  • the access network device sends the capability information to the core network device.
  • the method further includes step 806.
  • the core network device receives capability information from the access network device, where the capability information includes third indication information.
  • the access network device sends capability report instruction information to the terminal device, where the capability report instruction information is used to instruct the terminal device to report capability information.
  • the access network device may send the capability report instruction information to the terminal device to instruct the terminal device to report the capability information it supports.
  • the base station may send a capability request and capability report instruction information to the UE when it receives the UE's initial context establishment message and does not contain its capability information.
  • the base station receives a handover message sent by another base station, it confirms that the handover message does not contain UE capability information, or that the UE capability carried in it is not required by itself. In this case, it can send capability report instruction information to the UE , Instruct the UE to report capability information.
  • the base station may send capability report instruction information to the UE when it receives the capability query request information sent by the core network device and determines that it needs to query the UE for its capability information.
  • the capability report indication information includes at least one of the capability filtering parameter, the first indication information, and the segment number threshold.
  • the capability report indication information includes capability filtering parameters and first indication information.
  • the capability filtering parameter is used to indicate the range of the terminal device capability information; the first indication information is used to indicate whether the terminal device needs to apply the capability filtering parameter when the first condition is met.
  • the capability filtering parameter can refer to the related description of step 501 to indicate the range of capabilities that the terminal device needs to report.
  • the first condition is that a first set of capabilities can be reported, and the first set of capabilities is a set of capabilities of the terminal device, or a set of all capabilities supported by the terminal device.
  • the capability filtering parameter can be set, and the terminal device selects part of the capability information according to the capability filtering parameter and reports it to the access network device.
  • the terminal device can determine whether to not apply the capability filtering parameter according to the first indication information. Specifically, assuming that the network is configured with capability filtering parameters, and the terminal device confirms that all capability information supported by it can be reported this time completely, if the first indication information is that the capability filtering parameters may not be used when the first condition is met, Then the terminal device can report all the supported capability information, and no longer apply capability filtering parameters for filtering.
  • the capability report indication information includes the segment number threshold.
  • the threshold of the number of segments indicates the maximum number of segments that the access network device supports to process. For the terminal device, in order to ensure the normal reception of the access network device, the number of segments when sending capability information does not exceed this threshold.
  • the capability report indication information includes capability filtering parameters.
  • the capability filtering parameter is used to indicate the range of the capability information of the terminal device. For specific meaning, refer to the related description in step 501.
  • the capability report indication information includes capability filtering parameters, the first indication information, and the segment number threshold.
  • the capability filtering parameter, the first indication information, and the segment number threshold respectively instruct the terminal device to report capability information.
  • step 8011 is further included before step 801.
  • the access network device indicates to the core network device whether it supports the capability ID query and/or whether it supports the capability processing mode of segmented transmission. If the access network device does not support the capability transmission mode of the capability ID, the core network device may not carry the capability ID when subsequently sending the capability to the access network device. If the access network device does not support segmented transmission to report capabilities, the core network device determines that the access network device does not support querying the terminal capabilities that are too large, and can choose other access network devices when querying the capabilities of larger terminals Make an inquiry.
  • step 8012 is included before step 801.
  • the access network device receives the capability query message sent by the core network device, or the access network device receives the initial context establishment message sent by the core network device, where No information about the capabilities of the terminal device is carried. At this time, the access network device executes step 801 to send capability report instruction information to the terminal device to instruct it to report supported capabilities.
  • the terminal device receives the capability report instruction information from the access network device, and instructs the terminal device to report the capability information it supports.
  • the capability report indication information includes capability filtering parameters and first indication information.
  • the first indication information is used to indicate whether the capability filtering parameter needs to be applied when the first condition is met.
  • the network side is configured with capability filtering parameters, and at the same time, the threshold of the capability information transmission allowed segmentation is 5, and each segment can carry 9KB information at most.
  • the terminal device confirms that the size of all capability information supported by it is 40KB, which is less than 5* 9. It is considered that the capability can be completely reported, and the capability filtering parameter may not be applied when the first condition is met, then the terminal device may report all the supported capability information, and the capability filtering parameter is no longer applied for filtering.
  • the terminal device sends the capability information to the access network device according to the capability report instruction information.
  • the capability information may be carried in a capability report RRC message, or may be carried in a capability information element (information element, IE) in other RRC messages, which is not limited here.
  • IE capability information element
  • the capability report indication information includes at least one of a segment number threshold, a capability filtering parameter, and an integrity identifier.
  • the terminal device can apply a segmentation mechanism to split the capability information to be reported into multiple capability report message segments and send them to the receiver.
  • Network access equipment If the capability report indication information includes a threshold for the number of segments, when the terminal device reports the capability information in segments, the number of segments needs to be less than or equal to the threshold for the number of segments. If the threshold for the number of segments is reached, it still cannot be transmitted. If all capabilities are reported, the remaining capability information will not be reported.
  • the terminal device filters the capability information according to the capability filter parameter, then when the terminal device sends the capability information to the access network device, the capability filter parameter can be sent to the access network device, Used to indicate the range corresponding to the sent capability information.
  • the integrity identifier of the capability information is sent to indicate whether the capability information is sent completely.
  • the integrity identifier reference may be made to the relevant description of step 503.
  • the capability report indication information includes capability filtering parameters. If the terminal device knows the identifier (identifier, ID) of the UE capability corresponding to the capability filtering parameter, the terminal device may send the aforementioned UE capability ID to the access network device without carrying the corresponding capability information.
  • the UE capability corresponding to the capability filter parameter refers to the UE capability determined according to the range indicated by the capability filter parameter. For details, please refer to the relevant description of the capability filter parameter in step 501.
  • the terminal device determines the capability information according to the capability filter parameter and reports it; according to the method provided in the embodiment of this application, the terminal device can filter the capability information when the capability is known.
  • the specific capability information is not sent, but the ID of the UE capability is sent to the access network device, thereby saving signaling loss in the UE capability information reporting process.
  • the UE capability ID corresponding to the foregoing capability filtering parameter is configured by the network device.
  • the access network device sends a capability request to the terminal device, and the capability request carries the first capability filtering parameter; after receiving it, the terminal device confirms the capability information according to the first capability filtering parameter and reports it; the access network device receives the capability information and sends it It is passed to the core network device, and the core network device allocates an ID for the capability information, and sends the ID to the terminal device through the access network device, then the terminal device records that the ID corresponds to the first capability filtering parameter.
  • the terminal device may send the capability filtering parameter and the integrity identifier to the access network device.
  • the terminal device separately determines the capability information for the message content according to the above method.
  • At least one of the threshold for the number of processing segments, the capability filtering parameter, and the integrity identifier may be carried in the capability report RRC message, or may be carried in capability information information elements in other RRC messages. There are no restrictions.
  • the access network device receives the capability information from the terminal device.
  • the capability information includes at least one of capability filtering parameters and integrity identifiers.
  • the access network device may determine whether the capability information of the terminal device is complete according to at least one of the capability filtering parameter and the integrity identifier. of.
  • the access network device sends the capability information to other network devices, the other network devices may determine the integrity of the capability information according to at least one of the capability filtering parameter and the integrity identifier.
  • the access network device receives the UE capability ID from the terminal device instead of specific capability information.
  • the UE capability ID is used to indicate corresponding capability information.
  • the access network device sends the capability information to the core network device.
  • the access network device After receiving the capability information from the terminal device, the access network device sends the capability information to the core network device.
  • the access network device sends a capability filter parameter and/or an integrity identifier to the core network device.
  • the capability filter parameter is used to indicate the range corresponding to the capability information
  • the integrity identifier is used to indicate whether the capability information from the terminal device is complete.
  • the access network device may also send the capability filtering parameter and/or integrity identifier when sending the capability information To the core network equipment.
  • the capability information may already include capability filtering parameters and/or integrity identifiers, but in the prior art, the capability information is encoded based on the communication protocol between the terminal device and the access network device , The core network device directly saves the capability information after receiving it, and does not decode it.
  • the access network device may send it to the core network device to instruct the core network device to determine the integrity of the capability information.
  • At least one of the capability information, capability filtering parameters, and integrity identifier may be carried in a capability indication message, or an initial context response message, or a capability query request response message, and send To the core network equipment.
  • the access network device sends the UE capability ID to the core network device without sending specific capability information.
  • the access network device sends the UE capability ID to the core network device, and requests the core network device for the capability information corresponding to the UE capability ID.
  • the core network device receives the capability information from the access network device, and the capability information includes third indication information.
  • the third indication information includes at least one of a capability filtering parameter and an integrity identifier, the capability filtering parameter is used to indicate the range of capabilities corresponding to the capability information, and the integrity identifier is used to indicate the capability of the terminal device Is the information complete?
  • the core network device determines whether the capability information is completely received according to the third indication information.
  • the core network device can determine whether the capability information of the terminal device is complete according to the capability filtering parameter and/or the integrity identifier. Specifically, if the capabilities required by the core network device are all included in the range specified in the capability filter parameter, and the range specified in the capability filter parameter can have corresponding information in the received capability information, then the core network device can determine The received capability information is complete, otherwise it can be confirmed that the received capability information is incomplete; the core network device can confirm that the received capability information is complete according to the indication of the integrity identifier. Further, the core network device can determine whether it is necessary to query the capability information of the terminal device through other access network devices based on the integrity of the received capability information.
  • the core network device receives the UE capability ID from the access network device instead of specific capability information. At this time, the core network device finds its corresponding UE capability according to the UE capability ID, and sends the UE capability to the access network device.
  • the base station will set the capability filtering parameters when requesting the capabilities of the UE.
  • the UE will select part of the capability information according to the capability filtering parameters and send it to the base station, resulting in the base station being unable to know the UE. Full capabilities.
  • the base station may send the first indication information to indicate that when all the UE information can be completely transmitted, the capability filtering parameter may not be applied, but directly send all the capability information of the UE. This solves the problem that the base station cannot fully learn the full capabilities of the UE due to the filter parameters being set.
  • the UE will apply a segmentation mechanism when sending capability information, split the capability information into multiple segments (for example: messages) and send it to the base station, and the base station may support the processing threshold of the number of segments Less than the number of segments sent by the UE, resulting in the base station unable to process all capability information.
  • the base station can send the first indication information to indicate that the number of segments of capability information sent by the UE does not exceed the threshold of the number of segments that it supports, avoiding the processing caused by the excessive number of segments. Failure problem.
  • the base station can more accurately instruct the UE to report the capability information by sending the capability report indication information. Furthermore, the base station may send to the core network integrity identifier to enable the core network to learn the integrity of the terminal equipment capability report. Furthermore, the core network equipment can determine whether it is necessary to re-acquire the terminal capability information through other base stations, which improves the communication efficiency and the reliability of subsequent communication messages.
  • the methods provided in the embodiments of this application are introduced from the perspective of access network equipment, terminal equipment, and core network equipment, and their interaction with each other.
  • the access network equipment, terminal equipment, and core network equipment may include hardware structures and/or software modules.
  • the hardware structure, software module, or hardware structure plus software module Form to achieve the above functions. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 9 shows a possible structural schematic diagram of the device 9 involved in the foregoing embodiment.
  • the device may be a core network device, and the core network device includes: receiving Unit 902.
  • the receiving unit 902 is configured to receive capability information of the terminal device from the access network device, where the capability information includes third indication information; the third indication information includes at least one of a capability filtering parameter and an integrity identifier.
  • the capability filtering parameter is used to indicate the range of capability information
  • the integrity identifier is used to indicate whether the capability information of the terminal device is complete; the receiving unit is also used to determine whether the capability information is complete according to the third indication information Received completely.
  • the core network device may further include a sending unit 901, configured to send a capability query message to the access network device.
  • the receiving unit 902 may be used to support the core network device to perform the process 806 in FIG. 8.
  • FIG. 10 shows a possible structural schematic diagram of the apparatus 10 involved in the foregoing embodiment.
  • the apparatus may be an access network device, and the access network device includes :Sending unit 1001 and receiving unit 1002.
  • the sending unit 1001 sends capability report instruction information to the terminal device, where the capability report instruction information is used to instruct the terminal device to report capability information;
  • the receiving unit 1002 is used to receive information from the terminal device Capability information;
  • the sending unit 1001 is also used to send capability information to the core network device.
  • the sending unit 1001 may be used to support the access network device to execute the processes 801 and 805 in FIG. 8.
  • the receiving unit 1002 may be used to support the access network device to perform the process 804 in FIG. 8.
  • FIG. 11 shows a possible structural schematic diagram of the apparatus 11 involved in the above embodiment.
  • the apparatus may be a terminal device, and the terminal device includes: a receiving unit 1101 And sending unit 1102.
  • the receiving unit 1101 is configured to receive capability report instruction information from the access network device;
  • the sending unit 1102 is configured to send capability information to the access network device according to the capability report instruction information.
  • the receiving unit 1101 may be used to support the terminal device to perform the process 802 in FIG. 8.
  • the sending unit 1102 may be used to support the terminal device to perform the process 803 in FIG. 8.
  • the division of modules in the embodiments of this application is illustrative, and is only a logical function division. There may be other divisions in the actual implementation process.
  • the functional modules in the various embodiments of this application can be integrated In a processor, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the receiving unit and the sending unit may be integrated into the transceiver unit.
  • an embodiment of the present application provides a communication method, including steps 1201 and 1202, and the method is suitable for the interaction of terminal device capability information in a communication system.
  • the first network device may be, for example, an access network device
  • the second network device may be, for example, a core network device or an access network device.
  • Step 1201 The second network device sends the first capability identifier and the capability information of the terminal device to the first network device.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device.
  • Step 1202 The first network device sends first indication information to the second network device.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier.
  • the first network device can notify the second network device through the first indication information that the previously received capability information and capability identifier cannot be used, or it is used to instruct the second network device to reallocate the capability
  • the identification can ensure the consistency of the UE capability ID, so that the UE capability ID can be used to improve the transmission efficiency of the communication system in the subsequent UE capability information transmission process.
  • the second network device sends the first capability identifier and the capability information of the terminal device to the first network device.
  • the first capability identifier is an identifier corresponding to the capability information of the terminal device. It can be understood that the first capability identifier is a UE capability ID, and the UE capability ID is used to identify the capability information of the terminal device.
  • the first capability identifier and the capability information of the terminal device may be carried in the same message or different messages, and the embodiment of the present application does not limit the sending mode and sending order.
  • the first capability identifier and the capability information of the terminal device are carried in the same message.
  • the second network device sends a first message to the first network device, and the first message includes the first capability identifier and the capability information of the terminal device.
  • the first message may be a UE initial context establishment message, a session establishment message, or a handover message.
  • the first capability identifier and the capability information of the terminal device are carried in different messages. Specifically, as shown in Fig. 12C, steps 12C01-12C03 are included,
  • the second network device sends a first message to the first network device, and the first message includes the first capability identifier.
  • the first capability identifier is used to identify capability information of the terminal device.
  • the first message is, for example, a UE initial context establishment message, a PDU session establishment message, or a handover message.
  • the first network device sends a second message to the second network device, where the second message is used to request capability information corresponding to the first capability identifier.
  • the first network device may further determine that the capability information corresponding to the first capability identifier is unknown, and then the first network device requests the capability information from the second network device.
  • the second message is, for example, a UE capability query message or a UE capability mapping query message.
  • the second message may include the first capability identifier.
  • the second network device sends a third message to the first network device, the third message includes capability information of the terminal device, and the capability information of the terminal device corresponds to the first capability identifier.
  • the second network device may determine the corresponding capability information according to the first capability identifier in the second message, and further, send the corresponding terminal device capability information to the first network device through a third message.
  • the third message is, for example, a UE capability query corresponding message, a UE capability mapping query response message, or a UE capability message.
  • the first network device sends the first indication information to the second network device.
  • the first indication information is used to indicate that the first network device does not use the first capability identifier, or the first indication information is used to instruct the second network device to reallocate the capability identifier for the capability information of the terminal device.
  • the first network device receives the first capability identifier from the second network device and the capability information of the terminal device, when the capability information of the terminal device is too large and exceeds the processing capability range supported by the first network device, the first network device If a network device cannot obtain a valid terminal device capability, the first network device can determine that the capability information of the terminal device cannot be used, and accordingly, the first capability identifier does not need to be used.
  • the use capability information can also be understood as parsing, processing or storing capability information.
  • the first network device may send the first indication information to the second network device for notifying the second network device that the first network device does not use the first capability identifier, and/or for notifying the second network device Device: The first network device does not use the capability information of the terminal device corresponding to the first capability identifier.
  • the first network device after determining that the capability information of the terminal device cannot be used, requests the terminal device to report the capability information. After the first network device receives the capability information from the terminal device, it may send the capability information to the second network device, and at the same time, the first network device sends first indication information to the second network device for notifying the second network device: The first network device does not use the first capability identifier.
  • the capability information and the first indication information may be carried in a UE radio capability indication message and sent to the second network device.
  • the first indication information may be indicated in an explicit manner. For example, the first network device may notify the second access network device through a field or a bit; on the other hand, the first indication information may be implicitly indicated.
  • the first network device sends the capability information of the terminal device to the second network device.
  • the second network device can determine that the received capability information corresponds to the same terminal device as the previously sent capability information.
  • the first network device does not use the first capability identifier.
  • the first indication information includes the first capability identifier. It is understandable that in the two implementations shown in FIG. 12B and FIG. 12C, the first network device may request the terminal device for capability information after determining that the capability information of the terminal device cannot be used.
  • the second network device may determine that the first network device does not use the first capability identifier. Further, the second network device may determine that the first network device does not use the first Capability information corresponding to the capability identifier.
  • the second network device allocates a second capability identifier to the capability information of the terminal device reported by the first network device, and sends the second capability identifier to the first network device, and then in the subsequent terminal device capability interaction process
  • the first network device and the second network device can identify the capability information through the second capability identifier to improve communication efficiency.
  • the first network device can notify the second network device through the first indication information that the previously received capability information and capability identifier cannot be used, so that the second network device can reallocate the capability identifier, and then The consistency of the UE capability ID can be guaranteed, so that in the subsequent UE capability information transmission process, the UE capability ID is used to improve the transmission efficiency of the communication system.
  • the methods provided in the embodiments of the present application are introduced from the perspective of the first network device, the second network device, and the interaction between them.
  • the first network device and the second network device may include a hardware structure and/or a software module, in the form of a hardware structure, a software module, or a hardware structure plus a software module To achieve the above functions. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 13 shows a possible structural schematic diagram of the communication device 13 involved in the foregoing embodiment.
  • the device may be a first network device, and the device includes: Unit 1301 and receiving unit 1302.
  • the receiving unit 1302 is configured to receive the first capability identifier and the capability information of the terminal device from the second network device
  • the sending unit 1301 is configured to send the first indication information to the second network device.
  • the receiving unit 1302 may be used to support the communication device 13 to perform step 1201 in FIG. 12A
  • the sending unit 1301 may be used to support the device 13 to perform step 1202 in FIG. 12A.
  • FIG. 14 shows a possible structural schematic diagram of the communication device 14 involved in the foregoing embodiment.
  • the device may be a second network device, and the device includes: The unit 1401 and the receiving unit 1402.
  • the sending unit 1401 is configured to send the first capability identifier and the capability information of the terminal device to the first network device
  • the receiving unit 1402 is configured to receive the first indication information from the first network device.
  • the sending unit 1401 may be used to support the communication device 14 to perform step 1201 in FIG. 12A
  • the receiving unit 1402 may be used to support the device 14 to perform step 1202 in FIG. 12A.
  • the division of modules in the embodiments of this application is illustrative, and is only a logical function division. There may be other divisions in the actual implementation process.
  • the functional modules in the various embodiments of this application can be integrated In a processor, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the receiving unit and the sending unit may be integrated into the transceiver unit.
  • the methods provided in the above two application embodiments can be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state drive (SSD)) )Wait.

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Abstract

本申请实施例提供一种通信方法和装置，涉及通信领域，所述方法包括：第一网络设备向第二网络设备发送处理能力指示信息和能力过滤参数中的至少一个；第二网络设备根据处理能力指示信息和能力过滤参数中的至少一个确定终端设备能力的大小和范围，并发送给第一网络设备。其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值中的至少一个，所述能力过滤参数用于指示能力信息的范围。通过该方法，可以解决网络侧无法获知终端设备的全部能力或特定能力的问题，并且优化终端设备的能力上报。

Description

一种通信方法和装置
本申请要求在2019年3月29日提交中国专利局、申请号为201910248056.1、申请名称为“一种通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种通信方法和装置。
背景技术
目前，由于硬件或者软件版本的不同，不同的用户设备(user equipment，UE)能够支持的无线接入技术(radio access technology，RAT)能力也不相同。为了更好地为UE提供服务，网络设备需要知道每个UE的能力，以便为UE配置合适的工作模式。网络可以请求UE针对不同的RAT类型进行能力上报。比如请求UE上报支持长期演进(long term evolution，LTE)的相关能力、支持新无线(new radio，NR)的相关能力或支持多RAT双连接(multi-RAT dual connectivity，MR-DC)的相关能力。
在UE与接入网建立RRC连接后，可以将携带UE能力的信元(information element,IE)带给接入网，接入网再将UE能力发送给核心网。在协议设计中，为了减少空口信令开销，核心网可以保存UE能力，并在初始上下文建立消息中将UE能力传递给接入网。如果UE没有上报能力，并且核心网没有存储该UE的能力，那么接入网会向UE发起能力查询请求，在UE上报了能力后再将UE能力传递给核心网。
随着UE支持的频段增加，UE的能力信息大小也在逐步增长，当前已经存在一些UE的能力信息大小达到了100M。由于UE的能力信息过大，导致能力的存储和传输消耗比较大，基站和核心网越来越无法精确控制能力的传输。UE能力的获取和传递成为亟需优化的一个技术关键点。
发明内容
本申请实施例提供一种通信方法和装置，能够优化UE能力的获取和传递。
第一方面，本申请实施例提供一种通信方法，该方法应用于通信设备或者通信设备的芯片中，该方法包括：第一网络设备向第二网络设备发送处理能力指示信息和能力过滤参数中的至少一个；所述第一网络设备接收来自所述第二网络设备的终端设备的能力信息；其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围。
基于本申请实施例提供的方法，当第一网络设备需要从第二网络设备获取终端设备的能力时，可以通过发送处理能力指示信息和能力过滤参数中的至少一个，更准确地指示第二网络设备上报能力，进一步，第二网络设备根据处理能力指示信息和能力过滤参数中的至少一个来确定能力上报的范围和大小，并将能力信息发送给第一网络设备。从而，本申请实施例提供的方法能够优化UE能力的获取和传递。
在一种可能的实现方式中，处理能力指示信息包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值中的至少一个。其中能力处理级别和能力处理阈值可以用于指示第一网络设备所支持处理的能力大小，第二网络设备可以通过处理能力指示信息来确定所发送能力的大小，保证其不超过第一网络设备支持处理的能力范围，避免了由于能力过 大而导致的第一网络设备无法正确或全面地获知UE能力的问题。
在一种可能的实现方式中，能力过滤参数包括带宽信息、频带信息或公共陆地移动网络(public land mobile network，PLMN)信息中的至少一种。一方面，带宽信息、频带信息或PLMN信息可以分别是一个指示信息或标识。带宽信息用于指示终端设备上报自身支持的全部带宽信息，频带信息用于指示终端设备上报自身支持的每个带宽上的频带信息，PLMN信息用于指示终端设备上报自身支持的PLMN所使用的频带相关的能力。另一方面，过滤参数可以携带具体的带宽信息、频带信息或PLMN信息，这些带宽信息、频带信息或PLMN信息不完全是根据基站的能力确定的，终端设备根据这些带宽信息，频带信息或PLMN信息确定上报能力集合的范围。这样，第一网络设备可以通过过滤参数更准确地指示第二网络设备的能力上报范围，避免了基站设置不合适的过滤参数导致无法正确或全面地获知UE的全部能力或UE的特定能力的问题。
在一种可能的设计中，处理能力指示信息和能力过滤参数中的至少一个承载于NG接口建立消息、初始上下文建立消息，Xn接口建立消息或能力请求消息中。
在一种可能的实现方式中，第一网络设备是接入网设备；第二网络设备是核心网设备或接入网设备。一方面，第二网络设备可以是核心网设备，当核心网设备保存了终端设备能力时，会将该能力信息推送给接入网设备，此时接入网设备可以通过处理能力指示信息和能力过滤参数中的至少一个来更准确地指示其所支持处理的能力信息的范围，避免了由于核心网发送过大的能力信息而导致接入网设备无法获知所需要的能力。另一方面，第二网络设备可以是接入网设备，当终端设备在不同的接入网设备之间切换时，第二接入网设备会向第一接入网设备发送终端能力信息，此时可以通过发送处理能力指示信息和能力过滤参数中的至少一个，来实现在两个接入网设备之间终端能力的交互，避免所传递的能力过大，超出目标接入网设备支持处理的范围。
第二方面，本申请实施例提供一种能力上报方法，该方法应用于通信设备或通信设备的芯片中，该方法包括：第二网络设备接收来自第一网络设备的处理能力指示信息和能力过滤参数中的至少一个；第二网络设备根据所述处理能力指示信息和能力过滤参数中的至少一个，向所述第一网络设备发送终端设备的能力信息。其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围。
在一种可能的实现方式中，处理能力指示信息包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值中的至少一个。
在一种可能的设计中，终端设备的能力信息承载于上下文建立响应消息，切换消息或能力请求响应消息中。
在一种可能的实现方式中，第二网络设备向第一网络设备发送所述处理能力指示信息、所述能力过滤参数或完整性标识中的至少一种,其中，完整性标识用于指示所述终端设备的能力信息是否完整。一方面，当第二网络设备接收到来自第一网络设备的处理能力指示信息和/或能力过滤参数时，第二网络设备根据处理能力指示信息和/或能力过滤参数确定终端设备的能力大小和/或范围，进一步的，当第二网络设备发送能力信息时，可以携带对应的处理能力指示信息和/或能力过滤参数，以指示能力信息对应的范围。其中，所述处理能力指示信息和/或能力过滤参数可以与所述能力信息一起发送，例如：能力信息携带所述处理能力指示信息和/或能力过滤参数或者能力信息与所述处理能力指示信息和/或能力过滤参数在同一条消息或信息中，也可以独立于所述能力信息发送，本申请不做具体限定。另一方面，当第二网络设备向第一网络设备发送能力时，可以携带完整性标识来指示能力信息是否是完整的，第 一网络设备根据完整性标识来确认所接收能力信息的完整性。其中，所述完整性标识可以与所述能力信息一起发送，也可以独立于所述能力信息发送，本申请不做具体限定。这种设计可以避免当第二网络设备发送的能力超出第一网络设备处理范围时，第一网络设备无法获知所接收能力信息的完整性的问题，并且可以优化第一网络设备的能力获取。
在一种可能的实现方式中，第一网络设备是接入网设备；所述第二网络设备是核心网设备或另一部接入网设备。
第三方面，本申请实施例提供一种通信方法，该方法应用于接入网设备或者接入网设备的芯片中，该方法包括：接入网设备向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息；所述接入网设备接收来自所述终端设备的能力信息。
在一种可能的实现方式中，能力上报指示信息包括能力过滤参数和第一指示信息，所述第一指示信息用于指示在第一条件满足时是否应用能力过滤参数，所述能力过滤参数用以指示终端设备需要上报的能力的范围，所述第一条件为第一能力集合能够被上报，所述第一能力集合对应所述终端设备的能力集合。当网络需要获取UE的特定能力时，接入网设备根据自身的能力向终端设备发送过滤参数，此时，终端设备会根据过滤参数来确定能力信息并发送给接入网设备，而不需要发送完整的能力信息。接入网设备以基站为例，由于不同基站的能力不同，根据过滤参数上报的UE能力在不同的基站之间并不能通用，会导致在UE于基站间切换后，新的基站需要重新请求能力。基于本申请实施例提供的方法，接入网设备可以通过发送第一指示信息，指示终端设备在能力信息能够被完整上报时，可以不应用过滤参数，而是向接入网设备发送完整的UE能力。进而，本申请实施例提供的方法能够解决由于基站设置过滤参数而导致其无法获知UE全部能力的问题。
在一种可能的实现方式中，能力上报指示信息包括分段数量阈值，所述分段数量阈值为能力信息传输的最大分段数量。接入网设备接收来自所述终端设备的N个分段，所述N个分段承载所述终端设备的能力信息，所述N小于或者等于所述分段数量阈值。分段数量阈值用于指示终端设备向接入网设备上报能力时，根据能力上报指示信息中的分段数量阈值来确定接入网设备所支持的最大分段数量，以避免终端设备发送能力的分段数超过接入网设备支持处理的能力范围。
在一种可能的实现方式中，接入网设备从所述终端设备接收完整性标识，所述完整性标识用于指示所述终端设备的能力信息是否完整。接入网设备可以根据完整性标识来确认所接收能力的完整性，以更准确地获知UE能力。
进一步可选的，所述接入网设备向核心网设备发送完整性标识，所述完整性标识用于指示所述终端设备的能力信息是否完整。接入网设备可以将来自终端设备的完整性标识发送给核心网设备，这种设计可以使网络侧能够获知终端设备能力的完整性。
在一种可能的实现方式中，接入网设备可以向核心网设备发送能力过滤参数，所述能力过滤参数包括带宽信息、频带信息或公共陆地移动网络PLMN信息中的至少一种。所述能力过滤参数可以是预配置的或者来自接入网设备的。在这种场景下，接入网设备可以在上报能力给核心网的同时携带对应的能力过滤参数，用于指示能力信息所对应的范围。
一种可能的设计中，接入网设备向终端设备发送能力请求之前，接入网设备接收核心网设备发送的能力查询消息，或者接入网设备接收核心网设备发送的初始上下文建立消息，其中没有携带终端设备的能力信息。接入网设备确认需要查询终端设备的能力信息后，向终端设备发送能力上报指示消息。
第四方面，本申请实施例提供一种能力上报方法，该方法应用于终端设备或终端设备的芯片中，该方法包括：终端设备接收来自接入网设备的能力上报指示信息；所述终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息。其中，能力上报指示信息用于指示所述终端设备上报能力信息。
在一种可能的实现方式中，所述能力上报指示信息包括第一指示信息；所述终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息。具体的，终端设备根据所述第一指示信息，向接入网设备发送能力信息；其中，第一指示信息用于指示在第一条件满足时是否应用能力过滤参数，能力过滤参数用于指示能力的范围，所述第一条件为第一能力集合能够被上报，所述第一能力集合对应所述终端设备的能力集合。基于本申请实施例提供的方法，接入网设备可以通过发送第一指示信息，指示终端设备在能够上报其全部能力信息时，可以不应用能力过滤参数，而是向接入网设备发送完整的UE能力信息。进而，本申请实施例提供的方法使终端设备在接收到过滤参数时仍然可以上报完整的能力给网络设备。
在一种可能的实现方式中，所述能力上报指示信息包括分段数量阈值，分段数量阈值为能力信息传输的最大分段数量。终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息。具体的，终端设备向接入网设备发送N个分段，用于承载所述终端设备的能力信息，其中，N小于或者等于所述分段数量阈值。这种实现方式提供的方法保证了终端设备所发送能力信息的分段数量在接入网设备支持处理的范围内，避免了由于分段数量过多而导致接入网设备处理能力信息失败。
在一种可能的实现方式中，终端设备在发送所述能力信息时携带完整性标识，所述完整性标识用于指示所述终端设备的能力信息是否完整。终端设备可以通过发送完整性标识来指示接入网设备能力信息的完整性，以优化UE能力的传输。
在一种可能的实现方式中，所述能力上报指示信息包括能力过滤参数，终端设备在根据能力过滤参数确认能力信息时，如果终端设备已知该能力过滤参数对应的UE能力的标识符，那么终端设备可以向接入网设备发送上述标识符，而不需要发送对应的能力信息。其中，所述能力过滤参数对应的UE能力是指终端设备根据能力过滤参数所指示的范围而确定的UE能力。需要说明的是，在此之前，网络设备根据相同的能力过滤参数查询终端设备的能力信息并分配标识符，终端设备接收来自网络设备的标识符并记录标识符与能力过滤参数的对应关系。通过本实现方式，可以优化能力传输，减少能力上报过程中的信令损耗。
第五方面，本申请实施例提供一种通信方法，该方法应用于核心网设备或者核心网设备的芯片中，该方法包括：核心网设备从接入网设备接收终端设备的能力信息，所述能力信息包含第三指示信息；其中，第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用以指示期望接收的能力的范围，所述完整性标识用于指示所述终端设备的能力信息是否完整；所述核心网设备根据所述第三指示信息确定所需要的终端能力是否全都接收到了。基于本申请实施例提供的方法，当核心网设备获取UE的全部能力或者UE部分能力时，可以通过所接收到的能力信息和能力过滤参数来确定能力信息对应的范围，以及通过完整性标识来确定所接收能力的完整性，从而使核心网设备更准确地获知UE能力，核心网设备可以根据此来判断是否需要从其它的基站来查询UE能力。
在一种可能的实现中，核心网设备根据能力过滤参数查询到终端设备的能力信息后，可以为能力信息分配标识符，并通过接入网设备将该标识符发送给终端设备，所述标识符对应于能力过滤参数。进一步，当后续需要根据相同的能力过滤参数查询能力时，可以用传递标识符来代替传输能力信息，以减少能力信息传输过程中的信令消耗。
第六方面，本申请实施例提供一种通信方法，该方法包括：接收来自第二网络设备的第一能力标识和终端设备的能力信息。其中，所述第一能力标识为所述终端设备的能力信息对应的标识。向第二网络设备发送第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识。
该方法可由第一通信装置执行，第一通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第一通信装置为网络设备，或者为设置在网络设备中的用于实现网络设备的功能的芯片，或者为用于实现网络设备的功能的其他部件。在下文的介绍过程中，以第一通信装置是第一网络设备为例。
通过本申请实施例提供的通信方法，第一网络设备可以通过第一指示信息来通知第二网络设备：之前收到的能力信息和能力标识无法使用，以便第二网络设备重新分配能力标识，进而可以保证UE能力ID的一致性，以便在后续的UE能力信息传输过程中，使用UE能力ID来提升通信***的传输效率。
在一种可能的实现中，所述第一指示信息中包括所述第一能力标识。进而，可以明确地指示第二网络设备第一能力标识没有被第一网络设备使用，或者所述第一能力标识对应的终端设备的能力信息没有被第一网络设备使用。
在一种可能的实现中，所述第一指示信息可以承载于UE无线能力指示消息中发送给第二网络设备。进而，第二网络设备可以确定第一网络设备能够处理的终端设备能力信息，并根据第一指示信息为终端设备能力信息分配能力标识。
第七方面，本申请实施例提供一种通信方法，该方法包括：向第一网络设备发送第一能力标识和终端设备的能力信息。其中，所述第一能力标识为所述终端设备的能力信息对应的标识。接收来自第一网络设备的第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识。
该方法可由第二通信装置执行，第二通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置，例如芯片。示例性地，所述第二通信装置为网络设备，或者为设置在网络设备中的用于实现网络设备的功能的芯片，或者为用于实现网络设备的功能的其他部件。在下文的介绍过程中，以第二通信装置是第二网络设备为例。
通过本申请实施例提供的通信方法，第一网络设备可以通过第一指示信息来通知第二网络设备：之前收到的能力信息和能力标识无法使用，以便第二网络设备重新分配能力标识，进而可以保证UE能力ID的一致性，以便在后续的UE能力信息传输过程中，使用UE能力ID来提升通信***的传输效率。
在一种可能的实现中，所述第一指示信息中包括所述第一能力标识。进而，可以明确地指示第二网络设备第一能力标识没有被第一网络设备使用，或者所述第一能力标识对应的终端设备的能力信息没有被第一网络设备使用。
在一种可能的实现中，所述第一指示信息可以承载于UE无线能力指示消息中发送给第二网络设备。进而，第二网络设备可以确定第一网络设备能够处理的终端设备能力信息，并根据第一指示信息为终端设备能力信息分配能力标识。
第八方面，本申请实施例提供一种通信装置，其包含处存储器以及至少一个处理器，所述存储器用于存储指令或者程序，所述处理器执行所述指令或者程序时，实现上述第一方面至第七方面以及其中任一可能的实现方式中所述的方法。
第九方面，本申请实施例提供一种通信装置，其特征在于，包括：发送单元，用于向网络设备发送处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指 示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；接收单元，用于接收来自所述网络设备的终端设备的能力信息。
第十方面，本申请实施例提供一种通信装置，其特征在于，包括：接收单元，用于接收来自网络设备的的处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指示所述网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；发送单元，用于根据处理能力指示信息和能力过滤参数中的至少一个，向所述网络设备发送终端设备的能力信息。
第十一方面，本申请实施例提供一种通信装置，其特征在于，包括：发送单元，用于向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息；接收单元，用于接收来自所述终端设备的能力信息。
第十二方面，本申请实施例提供一种通信装置，其特征在于，包括：接收单元，用于接收来自接入网设备的能力上报指示信息；发送单元，用于根据所述能力上报指示信息，向所述接入网设备发送能力信息。
第十三方面，本申请实施例提供一种通信装置，其特征在于，包括：接收单元，用于从接入网设备接收终端设备的能力信息，所述能力信息包含第三指示信息；所述第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用于指示能力信息的范围，所述完整性标识用于指示所述终端设备的能力信息是否完整；所述接收单元，还用于根据所述第三指示信息确定所述能力信息是否接收完全。
第十四方面，提供一种通信装置，例如该通信装置为如前所述的第一通信装置。所述第一通信装置用于执行上述第一方面或任一可能的实施方式中的方法。具体地，所述第一通信装置可以包括用于执行第一方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第一通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为网络设备。下面以第一通信装置是第一网络设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第一通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第一通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。其中，
所述处理模块，用于通过所述收发模块接收来自第二网络设备的第一能力标识和终端设备的能力信息。其中，所述第一能力标识为所述终端设备的能力信息对应的标识。
所述处理模块，还用于通过所述收发模块向第二网络设备发送第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识。
关于第十四方面或各种可选的实施方式所带来的技术效果，可参考对于第六方面或相应的实施方式的技术效果的介绍。
第十五方面，提供一种通信装置，例如该通信装置为如前所述的第二通信装置。所述第二通信装置用于执行上述第六方面或任一可能的实施方式中的方法。具体地，所述第二通信装置可以包括用于执行第六方面或任一可能的实施方式中的方法的模块，例如包括处理模块和收发模块。示例性地，收发模块可以包括发送模块和接收模块，发送模块和接收模块可以 是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。示例性地，所述第二通信装置为通信设备，或者为设置在通信设备中的芯片或其他部件。示例性地，所述通信设备为网络设备。下面以第二通信装置是第二网络设备为例。例如，所述收发模块也可以通过收发器实现，所述处理模块也可以通过处理器实现。或者，发送模块可以通过发送器实现，接收模块可以通过接收器实现，发送器和接收器可以是不同的功能模块，或者也可以是同一个功能模块，但能够实现不同的功能。如果第二通信装置为通信设备，收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者，如果第二通信装置为设置在通信设备中的芯片，那么收发器(或，发送器和接收器)例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。其中，
所述处理模块，用于通过所述收发模块向第一网络设备发送第一能力标识和终端设备的能力信息。其中，所述第一能力标识为所述终端设备的能力信息对应的标识。
所述处理模块，用于通过所述收发模块接收来自第一网络设备的第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识。
关于第十五方面或各种可选的实施方式所带来的技术效果，可参考对于第七方面或相应的实施方式的技术效果的介绍。
第十六方面，提供一种芯片，所述芯片包括处理器，用于支持通信装置实现上述方面任一实现方式中所涉及的功能。在一种可能的设计中，所述芯片还包括存储器，所述存储器用于保存所述通信装置必要的程序指令和数据。
第十七方面，本申请实施例提供了一种存储有计算机程序的计算机存储介质，其上存储有计算机程序，当所述计算机程序被处理器执行时实现上述第一方面至第七方面以及其中任一可能的实现方式中所述的方法。
附图说明
图1为现有技术中的一种通信方法的***架构示意图；
图2为一种根据能力标识获取能力信息的方法的信号交互示意图；
图3为本申请实施例提供的一种终端设备的结构示意图；
图4为本申请实施例提供的一种接入网设备的结构示意图；
图5为本申请实施例提供的一种适用于通信方法的信号交互示意图；
图6为本申请实施例提供的一种接入网设备的结构示意图；
图7为本申请实施例提供的一种网络设备的结构示意图；
图8为本申请实施例提供的又一种适用于通信方法的信号交互示意图；
图9为本申请实施例提供的一种核心网设备的结构示意图；
图10为本申请实施例提供的又一种接入网设备的结构示意图；
图11为本申请实施例提供的一种终端设备的结构示意图；
图12A为本申请实施例提供的再一种适用于通信方法的信号交互示意图；
图12B为本申请实施例提供的一种能力标识和能力信息的传输方法；
图12C为本申请实施例提供的又一种能力标识和能力信息的传输方法；
图13为本申请实施例提供的一种通信装置的结构示意图；
图14为本申请实施例提供的又一种通信装置的结构示意图；
具体实施方式
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请的描述中，除非另有说明，“至少一个”是指一个或多个，“多个”是指两个或多于两个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
为了下述各实施例的描述清楚简洁，首先给出相关概念或技术的简要介绍：
第五代(5thgeneration，5G)新空口(New Radio,NR)中的UE能力结构：5G NR的UE能力结构可以包括UE在NR中支持的带宽信息和特性集合(feature set combination)信息。5G NR的UE能力结构还可以包括其他射频能力，物理能力，测量能力等能力。
长期演进(long term evolution,LTE)中的UE能力结构：LTE的UE能力结构可以包括UE在LTE中支持的频段组合(band combination,BC)和特性集合信息。LTE的UE能力结构还可以包括其他射频能力，物理能力，测量能力等能力。
演进的通用陆基无线接入及新空口的双连接模式(E-UTRA-NR Dual Connectivity,EN-DC)中的UE能力结构：EN-DC的UE能力结构包括LTE、多模式接入双重连接技术(Multi-RAT Dual Connectivity,MR-DC)和NR三种能力。网络需要获取MR-DC能力中的BC，LTE能力中的特性集合信息，以及NR能力中的特性集合信息才能完全获取EN-DC的能力。目前，基站向UE请求LTE能力中的特性集合信息时，需要在过滤参数中携带NR和LTE的波段。
本申请实施例提供的通信方法和能力上报方法，应用于NR，LTE或者MR-DC等通信***中能力上报的场景。其中，MR-DC可以包括新空口和演进型通用移动通信***双连接(NR-EUTRAN dual connection,NE-DC)、演进型通用移动通信***和新空口双连接(EUTRAN-NR dual connection,EN-DC)和下一代演进型通用移动通信***和新空口双连接(Next Generation EUTRAN-NR dual connection,NGEN-DC)等等。其中，DC代表双连接，E代表进化的通用移动通信***(universal mobile telecommunications system，UMTS)陆地无线接入(evolved-UMTS terrestrial radio access，E-UTRA)，即***(4th generation，4G)无线接入网，也即长期演进(long term evolution，LTE)无线接入网；N代表NR，即5GNR；NG代表下一代核心网(next generation core)，即5G核心网。EN-DC是指4G无线接入网与5G NR的双连接。也就是说，在EN-DC场景下，UE同时连接LTE基站(例如，eNB)和NR基站(例如，gNB)，同时由这两个基站提供服务，其中，LTE基站为主节点(master node，MN)。NE-DC指5G NR与4G无线接入网的双连接，NR基站为主节点。NGEN-DC指在5G核心网下的4G无线接入网与5G NR的双连接，4G基站(LTE基站，例如eNB)为主节点。
如图1所示，为通讯***架构示意图，包括接入网设备、核心网设备和终端设备。在终端设备和接入网设备的RRC连接建立后，接入网设备会向核心网设备发送上下文建立消息。若核心网设备已经存储了终端设备的能力，则核心网设备会将该能力在上下文建立过程中发送给接入网设备，接入网设备可以使用该能力与终端设备进行通讯。若终端设备的能力未知， 接入网设备需要向终端设备请求能力上报，在终端设备将能力上报给接入网设备后，接入网设备根据该能力与终端设备进行通讯，并将该能力发送给核心网设备。
但是，随着UE能力的不断增大，网络侧无法控制UE的能力上报，导致无法全面获知UE的全部能力或UE的特定能力。
目前无线通信***中的分段传输机制，可以将过大的消息拆分成多个小的消息来传输。示例性的，目前无线资源控制(radio resource control，RRC)消息最大可以传输9千字节(kilobyte，KB)，对于过大的消息，可以引入分段的机制来传输，比如将大小为20KB的消息分成两个9KB的消息和一个2KB的消息进行传输。但是，如果基站不支持处理分段机制、或者不支持处理过多的分段信息，就会导致基站接收到的信息是不完整的，并且基站无法获知所接收信息的完整性。
图2示出了一种基于能力标识(capabilityidentity，capability ID)的能力上报方法。一个能力标识可以用于标识一组特定的能力集合。例如，一个能力标识可以和一类UE的能力相关。这样，同一类UE可以仅上报一次能力信息，无需同一类UE中的每个UE单独上报一次能力信息。比如，UE可以向核心网上报UE的能力标识，如果核心网已保存该能力标识对应的能力，则核心网可以将能力发送给基站，不再要求UE上报能力。如果核心网没有保存该能力标识对应的能力，则需要向UE请求能力，并将该能力和该能力标识记录下来。
目前，能力ID分为两种，第一种是由制造商分配的标识符(identifier,ID)；另一种是在UE接入接入网之后，由运营商来分配的ID，该场景下，UE先上报一次能力信息，在运营商保存能力并分配ID之后，UE只需要上报对应ID即可，不再需要上报能力。但是，capability ID通常对应UE的能力全集，或者是对应基于一组公共陆地移动网(public land mobile network,PLMN)通用的过滤参数过滤后的UE能力，在UE能力信息较大的情况下，如果基站的处理能力有限制，那么就无法处理接收到的UE能力。例如，核心网根据capability ID找到其存储的对应UE能力，该UE能力信息的大小为100百万字节(megabyte,MB)，核心网将UE能力信息发送给基站，但基站只能解析处理不超过10MB大小的RRC消息，导致基站无法获知所需要的UE能力。
因此，本申请实施例提供了一种通信方法和能力上报方法，通过发送处理能力指示信息和/或能力过滤参数来优化终端设备能力上报，以及通过能力上报指示信息等方式来使基站和核心网能够获知UE的全部能力或特定能力。
其中，终端设备也可以称为终端(terminal)、UE、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
接入网设备在不同的***对应不同的设备。比如在第二代(2thgeneration，2G)通信***中RAN设备可以对应基站和基站控制器；在第三代(3thgeneration，3G)通信***中RAN设备可以对应基站和无线网络控制器(radio network controller，RNC)；在4G中RAN设备可以对应eNB；在5G中RAN设备可以对应gNB，集中单元(centric unit，CU)或分布式单元(distributed unit，DU)等。在未来的演进或者新兴***中可以对应新的网络侧设备。
CN设备在不同的***对应不同的设备。比如在3G中可以对应通用分组无线服务技术(general packet radio service，GPRS)的服务支持节点(servingGPRSsupport node，SGSN)和/或GPRS的网关支持节点(gateway GPRS Support Node，GGSN)；在4G中可以对应移动管理实体(mobility management entity，MME)和/或服务网关(serving gateway，S-GW)；在5G中可以对应Access and Mobility Management Function(AMF)，Session Management Function(SMF)或者User plane Function(UPF)。
可选的，本申请实施例中的第一网络设备、第二网络设备、终端设备、核心网设备或接入网设备所实现的功能可以由一个网元实现，也可以由多个网元共同实现，还可以由一个网元的一个或多个功能模块实现，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，用于实现本申请实施例提供的终端设备的功能的装置可以通过图3中的装置300来实现。图3所示为本申请实施例提供的装置300的硬件结构示意图。该装置300中包括至少一个处理器301，用于实现本申请实施例提供的终端设备的功能。装置300中还可以包括总线302以及至少一个通信接口304。装置300中还可以包括存储器303。
在本申请实施例中，处理器可以是中央处理器(central processing unit，CPU)，通用处理器、网络处理器(network processor，NP)、数字信号处理器(digital signal processing，DSP)、微处理器、微控制器、可编程逻辑器件(programmable logic device，PLD)或它们的任意组合。处理器还可以是其它任意具有处理功能的装置，例如电路、器件或软件模块。
总线302可用于在上述组件之间传送信息。
通信接口304，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。通信接口304可以是接口、电路、收发器或者其它能够实现通信的装置，本申请不做限制。通信接口304可以和处理器301耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。需要说明的是，在本申请实施例中，当终端设备作为接收端设备时，上述收发器可以替换为接收器，当终端设备作为发送端设备时，上述收发器以替换为发射器。当然，也不排除无论终端设备作为接收端设备，还是作为发送端设备，该终端设备同时具有发送功能和接收功能，即包括上述收发器的情况。
在本申请实施例中，存储器可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，也可以与处理器耦合，例如通过总线302。存储器也可以和处理器集成在一起。
其中，存储器303用于存储程序指令，并可以由处理器301来控制执行，从而实现本申请下述实施例提供的通信方法。处理器301用于调用并执行存储器303中存储的指令，从而实现本申请下述实施例提供的通信方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
可选地，存储器303可以包括于处理器301中。
在具体实现中，作为一种实施例，处理器301可以包括一个或多个CPU，例如图3中的CPU0和CPU1。
在具体实现中，作为一种实施例，装置300可以包括多个处理器，例如图3中的处理器301和处理器307。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，装置300还可以包括输出设备305和输入设备306。输出设备305和处理器301耦合，可以以多种方式来显示信息。例如，输出设备305可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备306和处理器301耦合，可以以多种方式接收用户的输入。例如，输入设备306可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的装置300可以是一个通用设备或者是一个专用设备。在具体实现中，终端设备300可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图3中类似结构的设备。本申请实施例不限定装置300的类型。
例如，用于实现本申请实施例提供的接入网设备或核心网设备的功能的装置可以通过图4中的装置400来实现。图4所示为本申请实施例提供的装置400的硬件结构示意图。该装置400中包括至少一个处理器401，用于实现本申请实施例提供的终端设备的功能。装置400中还可以包括总线402以及至少一个通信接口404。装置400中还可以包括存储器403。
总线402可用于在上述组件之间传送信息。
通信接口404，用于与其他设备或通信网络通信，如以太网，RAN，WLAN等。通信接口404可以是接口、电路、收发器或者其它能够实现通信的装置，本申请不做限制。通信接口404可以和处理器401耦合。需要说明的是，在本申请实施例中，当接入网设备或核心网设备作为接收端设备时，上述收发器可以替换为接收器，当接入网设备或核心网设备作为发送端设备时，上述收发器可以替换为发射器。当然，也不排除无论接入网设备或核心网设备作为接收端设备，还是作为发送端设备，该接入网设备或核心网设备同时具有发送功能和接收功能，即包括上述收发器的情况。
其中，存储器403用于存储程序指令，并可以由处理器401来控制执行，从而实现本申请下述实施例提供的通信方法。例如，处理器401用于调用并执行存储器403中存储的指令，从而实现本申请下述实施例提供的通信方法。
可选地，存储器403可以包括于处理器401中。
在具体实现中，作为一种实施例，处理器401可以包括一个或多个CPU，例如图4中的CPU0和CPU1。
在具体实现中，作为一种实施例，装置400可以包括多个处理器，例如图4中的处理器401和处理器405。这些处理器中的每一个可以是一个单核处理器，也可以是一个多核处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
需要说明的是，本申请下述实施例中各个设备之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
需要说明的是，本申请下述实施例中各个设备可以存储UE能力，也可以用某种方式获知或确定UE能力。产品实现时，设备本身可能会存储相应的信息，也可能不进行存储，而是获取或确定相应的信息。为了简洁地描述本申请实施例的技术方案，在本申请的实施例中涉及相关表述时采用示例性的说明进行描述，本领域技术人员可以理解“存储”一词并不对各个设备中UE能力的存在形式进行限定。
为了便于理解，以下结合附图对本申请实施例提供的通信方法进行具体介绍。
实施例1
如图5所示，本申请实施例提供一种通信方法，包括步骤501-504。其中，通信方法包括能力上报方法。
501、第一网络设备向第二网络设备发送处理能力指示信息和能力过滤参数中的至少一个。其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围。
具体的，所述处理能力指示信息用于指示所述第一网络设备针对RRC消息的处理能力，比如UE能力信息的处理能力。
502、所述第二网络设备接收来自所述第一网络设备的处理能力指示信息和能力过滤参数中的至少一个。进一步，所述第二网络设备根据所述处理能力指示信息和能力过滤参数中的至少一个，确定终端设备的能力信息。需要说明的是，这里所确定的“终端设备的能力信息”是需要上报或者将要上报的能力信息。
503、所述第二网络设备向所述第一网络设备发送所述终端设备的能力信息。
504、所述第一网络设备接收来自所述第二网络设备的所述终端设备的能力信息。
通过本申请实施例提供的通信方法，第一网络设备可以通过发送处理能力指示信息和能力过滤参数中的至少一个来指示第二网络设备发送终端设备的能力信息，以实现所述第二网络设备合理地进行能力信息的传输。
对于步骤501：
第一种实现方式中，第一网络设备向第二网络设备发送处理能力指示信息。所述处理能力指示信息用于指示所述第一网络设备的处理能力。
具体的，所述处理能力指示信息可以包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值。其中，所述“能力处理”反映的是所述第一网络设备所能处理的能力信息大小。具体的，所述第一网络设备的能力处理级别包括所述第一网络设备能够处理的能力信息大小的级别，所述级别可以包含所述第一网络设备能够处理的能力信息大小的级别、最大级别或者全部级别。所述第一网络设备的能力处理阈值包括所述第一网络设备能够处理的能力信息大小的阈值，所述能力信息大小阈值可以为所述第一网络设备能够处理的能力信息大小的最大值。例如，假设能力信息大小级别由高到低可以划分为A级、B级和C级。其中，A级代表能够处理包含不受限制个数的频段组合的能力信息，B级代表能够处理包含不超过1000个频段组合的能力信息，C代表能够处理包含不超过300个频段组合的能力信息所述第一网络设备能够处理的能力大小级别为B级，进一步的，第二网络设备接收到所述能力指示信息，确定第一网络设备的能力信息大小级别为B级，则第二网络设备向第一网络设备发送不超过B级别的能力信息。又例如，假设第一网络设备能够处理的能力信息大小的阈值 为2KB，进一步的，第二网络设备接收到所述能力信息，确定第一网络设备支持处理的能力最大值为2KB，则第二网络设备向第一网络设备发送大小不超过2KB的能力信息。这里需要说明的是，ABC仅仅是一种举例方式，其他任意能够标识多种级别的表述方式都可以用于级别的指示，本申请说明书不做具体限定。
第二种实现方式中，第一网络设备向第二网络设备发送能力过滤参数。所述能力过滤参数用于指示能力信息的范围。
具体的，所述能力过滤参数包括带宽信息、频带信息或PLMN信息中的至少一种。其中，所述带宽信息、频带信息或PLMN信息中的至少一种可以通过一个或多个指示信息指示，也可以承载在一个或多个消息中。第二网络设备接收能力过滤参数后，根据该带宽信息，频带信息或PLMN信息中的至少一种确定上报能力集合的范围。其中，带宽信息用于指示第二网络设备上报其获取的终端设备支持的带宽信息，所述带宽信息可以指示第二网络设备上报其获取的终端设备支持的全部带宽信息，也可以指示第二网络设备上报一定范围的带宽信息。频带信息用于指示第二网络设备上报其存储的终端设备支持的频带信息，可以指示其上报全部或指定范围的频带信息。例如，假设能力过滤参数中携带的频带信息包括BC1，BC2和BC3，第二网络设备可以在其存储的终端设备支持的能力中选择与BC1，BC2和BC3相关的所有能力信息发送给第一网络设备。PLMN信息用于指示第二网络设备上报其存储的终端设备支持的PLMN所使用的频带相关信息，可以指示其上报全部或指定范围的PLMN频带信息。例如，假设能力过滤参数中包含了PLMN信息，则第二网络设备根据该PLMN信息确定PLMN包括的所有频段，并基于这些频段确定需要上报的能力信息。可以理解的是，第二网络设备可以根据预配置的或者从网络侧获得的PLMN和频段的对应关系来确定PLMN信息包括的所有频段。
第三种实现方式中，第一网络设备向第二网络设备发送处理能力指示信息和能力过滤参数。关于处理能力指示信息和能力过滤参数的解释，可以参见上文的阐述。
具体的，所述第二网络设备接收到所述处理能力指示信息和能力过滤参数后，可以根据所述处理能力指示信息和能力过滤参数，确定需要上报的终端设备的能力信息。
例如，所述第二网络设备先根据能力过滤参数进行过滤，再按照处理能力指示信息发送。
在本申请实施例中，第一网络设备是接入网设备，第二网络设备可以为核心网设备或者另一接入网设备。
在第二网络设备为核心网设备的场景下，在终端设备接入接入网设备后，当核心网设备已经存储了终端设备的能力时，核心网设备会将终端设备的能力信息在上下文建立过程中发送给接入网设备，接入网设备可以使用接收到的能力信息与终端设备进行通讯。在此之前，接入网设备向核心网设备发送处理能力指示信息和能力过滤参数中的至少一个，用于指示该接入网设备能够处理的能力信息，避免核心网设备发送接入网设备无法处理的能力信息。
在第二网络设备是另一接入网设备的场景下，例如所述接入网设备为基站时，当终端设备从第二基站切换到第一基站后，第一基站向第二基站发送所述终端设备的能力信息，第一基站可以基于接收到的能力信息与终端设备进行通讯。在此之前，第一基站可以通过发送处理能力指示信息和能力过滤参数中的至少一个，向第二基站指示其所支持处理的能力信息，避免第二基站发送过大的能力信息，进而导致第一基站无法获取有效的终端设备的能力。
对于该步骤501，在一种可能的设计中，第一网络设备可以通过NG接口建立消息，或者通过初始UE消息，或者通过Xn接口建立消息，或者通过基站切换消息，或者通过能力请求消息将处理能力指示信息和能力过滤参数中的至少一个发给第二网络设备。
可选的，处理能力指示信息和能力过滤参数中的至少一个可以填充在能力请求中的预留比特位中，或者可以填充在新增的比特位中，本申请不做限定。
可选的，处理能力指示信息和/或能力过滤参数可以和RAT type结合使用，用来指示终端设备上报某一个或多个RAT的能力，即所述能力指示信息仅对所述请求的RAT生效。
对于步骤502，第二网络设备接收到处理能力指示信息和/或能力过滤参数，并确定需要上报的终端设备能力信息：
在第一种实现中，第二网络设备接收来自第一网络设备的处理能力指示信息。所述处理能力的指示信息包括所述第一网络设备能够处理的能力信息大小的级别或第一网络设备能够处理的能力信息大小上限值。第二网络设备确定其所存储的终端设备支持处理的能力信息，如果能力信息的大小小于或者等于所述能力指示信息指示的能力信息大小，那么第二网络设备可以向第一网络设备发送完整的能力信息，否则，第二网络设备确定终端设备能力信息的一部分发送给第一网络设备。可选的，第二网络设备可以在其所存储的终端设备的能力信息中，根据所述能力信息上限值获取部分能力信息。例如，假设终端设备支持100个频段组合(band combination,BC)，其中前32个BC的大小之和达到了第一网络设备指示的能力信息上限值，那么第二网络设备获取前32个或者后32个BC的能力信息并发送给第一网络设备，这里的前后顺序可以表示第一网络设备存储的顺序或者表示第二网络设备读取的顺序。如果存在预配置的过滤参数，比如第二网络设备预配置了特定的频段和/或带宽信息，那么第二网络设备根据其选择特定的部分发送给基站。例如，预配置BC1和BC2，则第二网络设备选择BC1和BC2对应的能力信息发送给第一网络设备。
在第二种实现中，第二网络设备接收来自第一网络设备的能力过滤参数，用于指示能力信息的范围。具体方法可以参考步骤501的相关说明。
在第三种实现中，第二网络设备收到来自第一网络设备的处理能力指示信息和能力过滤参数。关于处理能力指示信息和能力过滤参数的定义，可以参见上文的阐述。此时，第二网络设备先根据能力过滤参数在其存储的终端设备支持处理的能力信息中选定部分组合，如果选定部分的信息大小小于或者等于指示信息所指示的大小，则直接将选定部分的信息发送给第一网络设备，否则，再根据能力大小限制，在选定的组合中，获取部分频段组合发送。例如，假设终端设备支持100个BC，并且能力过滤参数中携带的带宽信息包括BC1，BC2，和BC3，那么第二网络设备先在其存储的终端设备能力中选择与BC1，BC2或BC3相关的所有能力信息，如果这部分选定的信息之和小于或者等于所述能指示信息指示的能力大小，那么可以直接将选定部分的能力信息发送给第一网络设备，否则，需要在选定的信息中获取前部分能力或者后部分能力，获取的部分能力的信息大小不超过能力信息上限值，将获取到的部分能力信息发送给第一网络设备，需要说明的是，这里的前后顺序可以表示第一网络设备存储的顺序或者第二网络设备读取的顺序。
对于步骤503、第二网络设备根据处理能力指示信息和/或能力过滤参数，向第一网络设备发送步骤502中确定的终端设备的能力信息。
可选的，该方法还包括步骤5031，第二网络设备可以向第一网络设备发送处理能力指示信息、能力过滤参数和完整性标识中的至少一种。具体的，所述处理能力指示信息、能力过滤参数和完整性标识中的至少一种可以携带在能力上报RRC消息中，也可以是携带在其他RRC消息中的能力信息信元中，此处不做限定。
第一种可能的实现中，如果第二网络设备根据第一网络设备的处理能力指示信息对其存 储的终端设备能力信息确定了部分能力信息，那么在第二网络设备向第一网络设备发送能力信息时，可以向所述第一网络设备发送所述第一网络设备的处理能力指示信息，用于指示发送的能力信息所对应的范围。这里需要说明的是，所述第二网络设备向所述第一网络设备发送处理能力指示信息时，可以与所述能力信息一起发送，例如：能力信息携带所述处理能力指示信息或者能力信息与所述处理能力指示信息在同一条消息或信息中，也可以独立于所述能力信息发送。
第二种可能的实现中，如果第二网络设备根据能力过滤参数对其存储的终端设备能力信息确定了部分信息，那么在第二网络设备向第一网络设备发送能力信息时，可以发送给第一网络设备所述能力过滤参数，用于指示发送的能力信息所对应的范围。其中，所述能力过滤参数可以与所述能力信息一起发送，例如：能力信息携带所述能力过滤参数或者能力信息与所述能力过滤参数在同一条消息或信息中，也可以独立于所述能力信息发送。
第三种可能的实现中，在第二网络设备向第一网络设备发送能力信息时，发送所述能力信息的完整性标识，用于指示需要发送的终端设备能力信息是否完整发送。第一网络设备根据完整性标识来确定所接收的能力信息是否是完整的。具体的，第二网络设备判断所需要查询或者请求的能力是否都包含在上报的能力信息中，如果都包含则认为能力信息是完整的，否则认为是不完整的。例如，第一网络设备发送了能力过滤参数，第二网络设备判断能力过滤参数对应的能力均包含在所发送的能力信息中，则认为能力信息是完整的。又例如，第一网络设备要求第二网络设备上报其保存的所有UE能力，那么如果上报的能力信息中包含所有UE能力则认为上报完整。其中，所述完整性标识可以与所述能力信息一起发送，例如：能力信息携带所述完整性标识或者能力信息与所述完整性标识在同一条消息或信息中，也可以独立于所述能力信息发送。
在其他可能的实现中，基于上述三种可能的实现的阐述，在可能的场景下，第二网络设备可以向第一网络设备发送处理能力指示信息、能力过滤参数和完整性标识中的至少两种或者全部。
在一种可能的设计中，第二网络设备可以通过初始上下文建立消息，或者通过基站切换消息，或者通过能力请求响应消息将能力信息发给第一网络设备。
对于步骤504、第一网络设备接收来自第二网络设备的能力信息。
第一网络设备接收来自第二网络设备的能力过滤参数和完整性标识中的至少一种，第一网络设备可以根据此来判断第二网络设备发送的能力信息是否是完整的。具体方法可以参考步骤503的相关说明。
基于本申请实施例提供的方法，当第一网络设备需要从第二网络设备获取终端设备的能力时，可以向第二网络设备发送处理能力指示信息和/或能力过滤参数。第二网络设备接收后，根据处理能力指示信息确定能力信息的大小和/或根据能力过滤参数进行能力信息过滤，并将确定后的能力信息发送给第一网络设备。相比现有技术中，当第二网络设备向第一网络设备发送终端设备的能力信息时，如果发送的能力信息过大，可能超出第一网络设备支持处理的范围，或者，第二网络设备将能力信息分段发送，而第一网络设备可能不支持分段的处理。这样可能导致第一网络设备从第二网络设备中接收能力失败，或者接收能力信息不完整。本申请实施例提供的方法使第一网络设备可以指示其支持处理的能力信息的范围，进而第二网络设备按照所指示的能力范围内发送信息，避免出现第一网络设备接收到的能力信息不全面或者无法处理。
当第一网络设备是接入网设备，第二网络设备是另一部接入网设备时，本申请实施例提 供的方法可以避免在UE于基站间切换时，由于能力信息过大导致的目的基站无法正确或全面的获知UE的全部能力或UE的特定能力的问题。
上述本申请提供的实施例中，分别从第一网络设备、第二网络设备，以及其相互之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一网络设备和第二网络设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
在采用对应各个功能划分各个功能模块的情况下，图6示出了上述实施例中所涉及的装置6的一种可能的结构示意图，该装置可以为接入网设备，该接入网设备包括：发送单元601和接收单元602。在本申请实施例中，发送单元601，用于向网络设备发送处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；接收单元602，用于接收来自所述网络设备的终端设备的能力信息，能力信息对应于处理能力指示信息和/或能力过滤参数。在图6所示的方法实施例中，发送单元601可以用于支持接入网设备执行图5中的过程501。接收单元602可以用于支持接入网设备执行图5中的过程504。
在采用对应各个功能划分各个功能模块的情况下，图7示出了上述实施例中所涉及的装置7的一种可能的结构示意图，该装置可以为接入网设备或核心网设备，该网络设备包括：接收单元701和发送单元702。接收单元701，用于接收来自接入网设备的的处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指示所述网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；发送单元702，用于根据处理能力指示信息和能力过滤参数中的至少一个，向接入网设备发送终端设备的能力信息。在图7所示的方法实施例中，接收单元701可以用于支持接入网设备或核心网设备执行图5中的过程502。发送单元702可以用于支持接入网设备或核心网设备执行图5中的过程503。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独的物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。示例性地，在本申请实施例中，接收单元和发送单元可以集成至收发单元中。
实施例2
如图8所示，本申请实施例提供一种通信方法，包括步骤801-806。其中，通信方法包括终端设备能力上报方法。需要说明的是，本实施例2中出现的一些术语与实施例1中相同术语的含义也相同，具体的解释可以参见实施例1的阐述。
801、接入网设备向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息。
802、终端设备接收接入网设备发送的能力上报指示信息。进一步，所述终端设备根据所述能力上报指示信息确定能力信息。
803、终端设备根据能力上报指示信息向接入网设备发送所述能力信息。
804、接入网设备接收来自终端设备的能力信息。
可选的，所述方法还包括步骤805、接入网设备将能力信息发送给核心网设备。
可选的，所述方法还包括步骤806、核心网设备接收来自接入网设备的能力信息，所述能力信息包含第三指示信息。
对于步骤801、接入网设备向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息。
接入网设备在无法获知终端设备的能力信息时，可以向终端设备发送能力上报指示信息，用于指示终端设备上报其所支持的能力信息。例如，当所述接入网设备为基站时，基站在收到UE的初始上下文建立消息并且其中没有包含其能力信息时，可以向UE发送能力请求和能力上报指示信息。又例如，基站在收到其它基站发送的切换消息时，确认切换消息中没有包含UE的能力信息，或者其中携带的UE能力不是自身需要的，这种情况下，可以向UE发送能力上报指示信息，指示UE上报能力信息。或者基站在收到核心网设备发送的能力查询请求信息，确定需要向UE查询其能力信息时，可以向UE发送能力上报指示信息。
在本申请实施例中，能力上报指示信息包括能力过滤参数、第一指示信息和分段数量阈值中的至少一个。
在第一种可能的实现中，能力上报指示信息包括能力过滤参数和第一指示信息。其中，能力过滤参数用于指示终端设备能力信息的范围；第一指示信息用于指示在满足第一条件时终端设备是否需要应用能力过滤参数。其中，能力过滤参数可以参考步骤501的相关说明，用以指示终端设备需要上报的能力的范围。第一条件为第一能力集合能够被上报，所述第一能力集合为所述终端设备的能力集合，或者说是终端设备所支持的全部能力的集合。本领域技术人员可以理解这里的“全部能力”并非所有可能的“能力”，而是指相应场景下，与接入网设备的请求相关的能力，与具体的应用场景相关。在现有技术中，当接入网设备在请求终端设备的能力信息时可以设置能力过滤参数，终端设备根据能力过滤参数选定部分能力信息上报给接入网设备。本申请中，如果终端设备的所有信息都可以完整上报，那么终端设备可以根据第一指示信息来判断是否不应用所述能力过滤参数。具体的，假设网络配置了能力过滤参数，同时终端设备确认其所支持的全部能力信息可以在本次完整上报，如果所述第一指示信息为在满足第一条件时可以不使用能力过滤参数，那么终端设备可以将支持的能力信息全部上报，不再应用能力过滤参数进行过滤。
在第二种可能的实现中，能力上报指示信息包括分段数量阈值。分段数量阈值指示接入网设备支持处理的最大分段数量，对于终端设备来说，为保证接入网设备正常接收，在发送能力信息时分段的数量不超过此阈值。
在第三种可能的实现中，能力上报指示信息包括能力过滤参数。能力过滤参数用于指示终端设备能力信息的范围，具体含义可以参考步骤501中的相关说明。
在第四种可能的实现中，能力上报指示信息包括能力过滤参数、第一指示信息和分段数量阈值。关于第一指示信息和分段数量阈值的定义，可以参见上文的阐述。此时能力过滤参数、第一指示信息和分段数量阈值分别指示终端设备上报能力信息。
在一种可能的设计中，在步骤801之前还包括步骤8011，接入网设备向核心网设备指示其是否支持通过capability ID查询和/或是否支持分段传输的能力处理方式。如果接入网设备不支持capability ID的能力传输方式，则核心网设备后续在向该接入网设备发送能力时可以不携带capability ID。如果接入网设备不支持分段传输的方式上报能力，则核心网设备确定该接入网设备不支持查询过大的终端能力，在需要查询较大的终端能力时可以选择其他接入网设备进行查询。
在一种可能的设计中，在801步骤之前还包括步骤8012，接入网设备接收到核心网设备 发送的能力查询消息，或者接入网设备接收到核心网设备发送的初始上下文建立消息，其中没有携带终端设备的能力信息。此时，接入网设备执行步骤801，向终端设备发送能力上报指示信息，指示其上报所支持的能力。
对于步骤802、终端设备接收来自接入网设备的能力上报指示信息，指示终端设备上报其支持的能力信息。
在一种可能的实现中，能力上报指示信息包括能力过滤参数和第一指示信息。如步骤801所述，第一指示信息用于指示在满足第一条件时是否需要应用能力过滤参数。例如，网络侧配置了能力过滤参数，同时本次能力信息传输允许分段的阈值为5个，每个分段最多承载9KB信息，终端设备确认其支持的全部能力信息大小为40KB，小于5*9，则认为能力可以完全上报，在满足第一条件时可以不应用能力过滤参数，那么终端设备可以将支持的能力信息全部上报，不再应用能力过滤参数进行过滤。
对于步骤803、终端设备根据能力上报指示信息向接入网设备发送能力信息。
可选的，所述能力信息可以携带在能力上报RRC消息中，也可以是携带在其他RRC消息中的能力信息信元(information element，IE)中，此处不做限定。
在本申请实施例中，所述能力上报指示信息包括分段数量阈值、能力过滤参数和完整性标识中的至少一种。
在第一种可能的实现中，如果待上报的能力信息大小超过了一定的阈值，终端设备可以应用分段机制，将待上报的能力信息拆分在多个能力上报消息分段中发送给接入网设备。如果能力上报指示信息包括分段数量阈值，那么终端设备在将能力信息分段上报时，所分段的数量需要小于或等于分段数量阈值，如果达到了分段数量阈值，仍然不能将需要传输的能力全部上报，则剩余的能力信息不上报。
在第二种可能的实现中，如果终端设备根据能力过滤参数对能力信息进行了过滤，那么在终端设备向接入网设备发送能力信息时，可以发送给接入网设备所述能力过滤参数，用于指示发送的能力信息所对应的范围。
在第三种可能的实现中，在终端设备向接入网设备发送能力信息时，发送所述能力信息的完整性标识，用于指示能力信息是否完整发送。所述完整性标识的定义，可以参考步骤503的相关说明。可选的，如果终端在进行能力分段上报时进行了分段，所有分段总和仍然没有将UE查询范围中包含的所有能力上报，则认为上报不完整。
在第四种可能的实现中，能力上报指示信息包括能力过滤参数。如果终端设备已知该能力过滤参数对应的UE能力的标识符(identifier,ID)，那么终端设备可以向接入网设备发送上述UE能力的ID，而不携带对应的能力信息。其中，所述能力过滤参数对应的UE能力是指根据能力过滤参数所指示的范围而确定的UE能力，具体可以参考步骤501中能力过滤参数的相关说明。相比现有技术中，当网络设备在能力请求中携带能力过滤参数时，终端设备根据能力过滤参数确定能力信息并上报；根据本申请实施例提供的方法，终端设备可以在已知该能力过滤参数所对应UE能力的ID时，不发送具体的能力信息，而是将UE能力的ID发送给接入网设备，从而节省UE能力信息上报过程的信令损耗。需要说明的是，上述能力过滤参数所对应的UE能力的ID是由网络设备配置的。具体的，接入网设备向终端设备发送能力请求，该能力请求携带第一能力过滤参数；终端设备接收后，根据第一能力过滤参数确认能力信息并上报；接入网设备接收能力信息并将其传递给核心网设备，核心网设备为该能力信息分配ID，并通过接入网设备将该ID发送给终端设备，那么终端设备记录该ID对应于第一能力过滤参数。
在其他可能的实现中，基于上述第二和第三种可能的实现的阐述，在可能的场景下，终端设备可以向接入网设备发送能力过滤参数和完整性标识。终端设备依据上述方法针对消息内容分别确定能力信息。
可选的，所述处理分段数量阈值、能力过滤参数和完整性标识中的至少一种可以携带在能力上报RRC消息中，也可以是携带在其他RRC消息中的能力信息信元中，此处不做限定。
对于步骤804、接入网设备接收来自终端设备的能力信息。其中，所述能力信息中包括能力过滤参数和完整性标识中的至少一种。具体的，当接入网设备接收来自终端设备的能力信息中包含整性标识时，接入网设备可以根据能力过滤参数和完整性标识中的至少一种来判断终端设备的能力信息是否是完整的。在接入网设备将所述能力信息发送给其他网络设备时，其他网络设备可以根据能力过滤参数和完整性标识中的至少一种来判断能力信息的完整性。
对于该步骤804，在一种可能的设计中，接入网设备接收来自终端设备的UE能力ID，而不是具体的能力信息。其中，UE能力ID用于指示对应的能力信息。
对于步骤805、接入网设备将能力信息发送给核心网设备。
接入网设备在接收来自终端设备的能力信息后，将所述能力信息发送给核心网设备。
进一步的，接入网设备向核心网设备发送能力过滤参数和/或完整性标识，能力过滤参数用于指示能力信息对应的范围，完整性标识用于指示来自终端设备的能力信息是否完整。具体的，如果接入网设备接收到终端设备发送的能力过滤参数和/或完整性标识，那么接入网设备可以在发送能力信息时，将所述能力过滤参数和/或完整性标识也发送给核心网设备。
需要说明的是，所述能力信息中可能已经包含了能力过滤参数和/或完整性标识，但在现有技术中，能力信息是基于终端设备和接入网设备之间的通信协议进行编码的，核心网设备收到能力信息后直接保存，并不会对其进行解码。在本申请实施例中，接入网设备在确认了能力过滤参数和/或完整性标识后，可以将其发送给核心网设备，以指示核心网设备判断能力信息的完整性。
在一种可能的设计中，所述能力信息、能力过滤参数和完整性标识中的至少一种可以承载于能力指示消息，或者承载于初始上下文响应消息，或者承载于能力查询请求响应消息，发送给核心网设备。
对于该步骤805，在一种可能的设计中，接入网设备将UE能力ID发送给核心网设备，而不发送具体的能力信息。此时接入网设备将该UE能力ID发送给核心网设备，并向核心网设备请求该UE能力ID所对应的能力信息。
对于步骤806、核心网设备接收来自接入网设备的能力信息，能力信息包括第三指示信息。
所述第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用于指示所述能力信息对应的能力的范围，所述完整性标识用于指示终端设备的能力信息是否完整。核心网设备根据所述第三指示信息确定能力信息是否接收完全。
当核心网设备接收到来自接入网设备的能力过滤参数和/或完整性标识时，核心网设备可以根据能力过滤参数和/或完整性标识来判断终端设备的能力信息是否是完整的。具体的，如果核心网设备需要的能力都包括在能力过滤参数中指定的范围内，且能力过滤参数中指定的范围都能在接收到的能力信息中有对应的信息，那么核心网设备可以确定所接收的能力信息是完整的，否则可以确认所接收的能力信息是不完整的；核心网设备可以根据完整性标识的指示来确认所接收到的能力信息是完整的。进一步的，核心网设备可以根据所接收能力信息 的完整性来判断是否需要通过其他接入网设备来查询终端设备的能力信息。
对于该步骤806，在一种可能的设计中，核心网设备接收来自接入网设备的UE能力ID，而不是具体的能力信息。此时，核心网设备根据UE能力ID找到其对应的UE能力，并将该UE能力发送给接入网设备。
在现有技术中，由于UE的能力信息可能过大，基站在请求UE的能力时会设置能力过滤参数，UE会根据能力过滤参数选取能力信息中的部分信息发送给基站，导致基站无法获知UE的全部能力。基于本申请实施例提供的方法，基站可以通过发送第一指示信息，指示在UE全部信息可以完整传输的时候，可以不应用能力过滤参数，而是直接发送UE的全部能力信息。从而解决基站由于设置了过滤参数而导致无法全面地获知UE的全部能力的问题。
由于UE的能力可能过大，UE在发送能力信息时会应用分段机制，将能力信息拆分在多个分段(例如：消息)中发送给基站，而基站支持处理的分段数量阈值可能小于UE发送的分段数量，导致基站无法处理全部的能力信息。基于本申请实施例提供的方法，基站可以通过发送第一指示信息，指示UE发送的能力信息分段数量不超过其支持处理的分段数量阈值，避免了由于分段数量过多而导致的处理失败问题。
进一步的，基站可以通过发送能力上报指示信息来更精确地指示UE上报能力信息。进而，基站可以通过发送给核心网完整性标识，来使核心网获知终端设备能力上报的完整性。进而核心网设备可以判断是否需要通过其他基站重新获取终端能力信息，提高了通讯效率，以及后续通讯消息的可靠性。
上述本申请提供的实施例中，分别从接入网设备、终端设备和核心网设备，以及其相互之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，接入网设备、终端设备和核心网设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
在采用对应各个功能划分各个功能模块的情况下，图9示出了上述实施例中所涉及的装置9的一种可能的结构示意图，该装置可以为核心网设备，该核心网设备包括：接收单元902。接收单元902，用于从接入网设备接收终端设备的能力信息，所述能力信息包含第三指示信息；所述第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用于指示能力信息的范围，所述完整性标识用于指示所述终端设备的能力信息是否完整；所述接收单元，还用于根据所述第三指示信息确定所述能力信息是否接收完全。可选的，该核心网设备还可以包括发送单元901，用于向接入网设备发送能力查询消息。在图8所示的方法实施例中，接收单元902可以用于支持核心网设备执行图8中的过程806。
在采用对应各个功能划分各个功能模块的情况下，图10示出了上述实施例中所涉及的装置10的一种可能的结构示意图，该装置可以为接入网设备，该接入网设备包括：发送单元1001和接收单元1002。在本申请实施例中，发送单元1001，向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息；接收单元1002，用于接收来自所述终端设备的能力信息；发送单元1001，还用于向核心网设备发送能力信息。在图8所示的方法实施例中，发送单元1001可以用于支持接入网设备执行图8中的过程801和805。接收单元1002可以用于支持接入网设备执行图8中的过程804。
在采用对应各个功能划分各个功能模块的情况下，图11示出了上述实施例中所涉及的装置11的一种可能的结构示意图，该装置可以为终端设备，该终端设备包括：接收单元1101 和发送单元1102。接收单元1101，用于接收来自接入网设备的能力上报指示信息；发送单元1102，用于根据所述能力上报指示信息，向所述接入网设备发送能力信息。在图8所示的方法实施例中，接收单元1101可以用于支持终端设备执行图8中的过程802。发送单元1102可以用于支持终端设备执行图8中的过程803。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，在实际的实现过程中可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。示例性地，在本申请实施例中，接收单元和发送单元可以集成至收发单元中。
实施例3
如图12A所示，本申请实施例提供一种通信方法，包括步骤1201和步骤1202，所述方法适用于通信***中终端设备能力信息的交互。
在本申请实施例中，第一网络设备可以例如为接入网设备，第二网络设备可以例如为核心网设备或接入网设备。
步骤1201、第二网络设备向第一网络设备发送第一能力标识和终端设备的能力信息。其中，所述第一能力标识为所述终端设备的能力信息对应的标识。
步骤1202、第一网络设备向第二网络设备发送第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识。
通过本申请实施例提供的通信方法，第一网络设备可以通过第一指示信息来通知第二网络设备：之前收到的能力信息和能力标识无法使用，或者用于指示第二网络设备重新分配能力标识，进而可以保证UE能力ID的一致性，以便在后续的UE能力信息传输过程中，使用UE能力ID来提升通信***的传输效率。
对于步骤1201：
第二网络设备向第一网络设备发送第一能力标识和终端设备的能力信息。所述第一能力标识为所述终端设备的能力信息对应的标识，可以理解为，第一能力标识为UE能力ID，所述UE能力ID用于标识所述终端设备的能力信息。
需要说明的是，所述第一能力标识和所述终端设备的能力信息可以承载于相同的消息或者不同的消息，本申请实施例对发送方式和发送顺序不作限定。
在第一种可能的实现中，所述第一能力标识和所述终端设备的能力信息承载于相同的消息。具体的，如图12B所示，第二网络设备向第一网络设备发送第一消息，第一消息中包括第一能力标识和终端设备的能力信息。例如，第一消息可以为UE初始上下文建立消息，会话建立消息，或者切换消息。
在第二种可能的实现中，所述第一能力标识和所述终端设备的能力信息承载于不同的消息。具体的，如图12C所示，包括步骤12C01-12C03，
在步骤12C01中，第二网络设备向第一网络设备发送第一消息，第一消息中包括第一能力标识。第一能力标识用于标识终端设备的能力信息。所述第一消息例如为UE初始上下文建立消息，PDU会话建立消息，或者切换消息。
在步骤12C02中，第一网络设备向第二网络设备发送第二消息，所述第二消息用于请求第一能力标识对应的能力信息。具体的，第一网络设备接收第一消息后，可以进一步确定未 知第一能力标识对应的能力信息，进而第一网络设备向第二网络设备请求能力信息。所述第二消息例如为UE能力查询消息或者UE能力映射查询消息。所述第二消息可以包括所述第一能力标识。
在步骤12C03中，第二网络设备向第一网络设备发送第三消息，所述第三消息包括终端设备的能力信息，所述终端设备的能力信息对应于所述第一能力标识。具体的，第二网络设备可以根据第二消息中的第一能力标识确定对应的能力信息，进一步，将对应的终端设备能力信息通过第三消息发送给第一网络设备。所述第三消息例如为UE能力查询相应消息，UE能力映射查询响应消息，或者UE能力消息。
对于步骤1202：
第一网络设备向第二网络设备发送第一指示信息。其中，所述第一指示信息用于指示所述第一网络设备没有使用所述第一能力标识，或者，第一指示信息用于指示第二网络设备为终端设备的能力信息重新分配能力标识。
具体的，第一网络设备接收来自第二网络设备的第一能力标识和终端设备的能力信息之后，当所述终端设备的能力信息过大，超出第一网络设备支持处理的能力范围时，第一网络设备无法获取有效的终端设备的能力，那么第一网络设备可以确定无法使用所述终端设备的能力信息，相应的，所述第一能力标识也无需使用。其中，所述使用能力信息也可以理解为解析，处理或者存储能力信息。此时，第一网络设备可以向第二网络设备发送第一指示信息，用于通知第二网络设备：第一网络设备没有使用所述第一能力标识，和/或，用于通知第二网络设备：第一网络设备没有使用所述第一能力标识对应的所述终端设备的能力信息。
在一种可能的实现中，第一网络设备在确定无法使用所述终端设备的能力信息之后，向终端设备请求能力信息上报。第一网络设备接收来自终端设备的能力信息之后，可以将能力信息发送给第二网络设备，同时第一网络设备向第二网络设备发送第一指示信息，用于通知第二网络设备：所述第一网络设备没有使用所述第一能力标识。例如，所述能力信息和所述第一指示信息可以承载于UE无线能力指示消息中发送给第二网络设备。一方面，所述第一指示信息可以通过显式的方式指示，例如，第一网络设备通过字段或者比特来通知第二接入网设备；另一方面，所述第一指示信息可以通过隐式的方式指示，例如，第一网络设备向第二网络设备发送终端设备的能力信息，第二网络设备接收后可以确定接收的能力信息与之前发送的能力信息对应相同的终端设备，进而可以确定所述第一网络设备没有使用所述第一能力标识。可选的，所述第一指示信息中包括所述第一能力标识。可以理解的是，在图12B和图12C所示的两种实现中，第一网络设备都可以在确定无法使用所述终端设备的能力信息之后，向终端设备请求能力信息。
第二网络设备接收来自第一网络设备的第一指示信息之后，可以确定第一网络设备没有使用所述第一能力标识，进一步，第二网络设备可以确定第一网络设备没有使用所述第一能力标识对应的能力信息。
在可能的实现中，第二网络设备为第一网络设备上报的终端设备的能力信息分配第二能力标识，并且将第二能力标识发送给第一网络设备，进而在后续的终端设备能力交互过程中，第一网络设备和第二网络设备可以通过第二能力标识来标识能力信息，提升通信效率。
通过本申请实施例提供的通信方法，第一网络设备可以通过第一指示信息来通知第二网络设备：之前收到的能力信息和能力标识无法使用，以便第二网络设备重新分配能力标识，进而可以保证UE能力ID的一致性，以便在后续的UE能力信息传输过程中，使用UE能力 ID来提升通信***的传输效率。
上述本申请提供的实施例中，分别从第一网络设备、第二网络设备，以及其相互之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一网络设备和第二网络设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
在采用对应各个功能划分各个功能模块的情况下，图13示出了上述实施例中所涉及的通信装置13的一种可能的结构示意图，该装置可以为第一网络设备，该装置包括：发送单元1301和接收单元1302。接收单元1302，用于接收来自第二网络设备的第一能力标识和终端设备的能力信息，发送单元1301，用于向第二网络设备发送第一指示信息。在图12所示的方法实施例中，接收单元1302可以用于支持通信装置13执行图12A中的步骤1201，发送单元1301可以用于支持装置13执行图12A中的步骤1202。
在采用对应各个功能划分各个功能模块的情况下，图14示出了上述实施例中所涉及的通信装置14的一种可能的结构示意图，该装置可以为第二网络设备，该装置包括：发送单元1401和接收单元1402。发送单元1401，用于向第一网络设备发送第一能力标识和终端设备的能力信息，接收单元1402，用于接收来自第一网络设备的第一指示信息。在图12所示的方法实施例中，发送单元1401可以用于支持通信装置14执行图12A中的步骤1201，接收单元1402可以用于支持装置14执行图12A中的步骤1202。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，在实际的实现过程中可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。示例性地，在本申请实施例中，接收单元和发送单元可以集成至收发单元中。
在以上两个申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state drives，SSD))等。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护 范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所属权利要求的保护范围为准。

Claims (29)

  1. 一种通信方法，其特征在于，包括：
    第一网络设备向第二网络设备发送处理能力指示信息和能力过滤参数中的至少一个；
    所述第一网络设备接收来自所述第二网络设备的终端设备的能力信息；
    其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围。
  2. 根据权利要求1所述的通信方法，其特征在于，
    所述处理能力指示信息包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值中的至少一个。
  3. 根据权利要求1或2所述的通信方法，其特征在于，
    所述处理能力指示信息和能力过滤参数中的至少一个承载于下一代(Next generation，NG)接口建立消息、初始用户设备(user equipment，UE)消息，Xn接口建立消息或能力请求消息中。
  4. 根据权利要求1-3任一项所述的通信方法，其特征在于，
    所述第一网络设备是接入网设备；以及
    所述第二网络设备是核心网设备或接入网设备。
  5. 根据权利要求1-4任一项所述的通信方法，其特征在于，所述第一网络设备接收来自
    所述第二网络设备的终端设备的能力信息，包括：
    所述第一网络设备接收来自所述第二网络设备的上下文建立消息，切换消息或能力请求响应消息，所述上下文建立消息，切换消息或能力请求响应消息包含所述能力信息。
  6. 一种能力传送方法，其特征在于，
    第二网络设备接收来自第一网络设备的处理能力指示信息和能力过滤参数中的至少一个；
    所述第二网络设备根据所述处理能力指示信息和能力过滤参数中的至少一个，向所述第一网络设备发送终端设备的能力信息；
    其中，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围。
  7. 根据权利要求6所述的能力传送方法，其特征在于，
    所述处理能力指示信息包括所述第一网络设备的能力处理级别和所述第一网络设备的能力处理阈值中的至少一个。
  8. 根据权利要求6或7所述的能力传送方法，其特征在于，
    所述终端设备的能力信息承载于上下文建立响应消息，切换消息或能力请求响应消息中。
  9. 根据权利要求6-8任一项所述的能力传送方法，其特征在于，在所述第二网络设备接收来自第一网络设备的处理能力指示信息和能力过滤参数中的至少一个之后，所述方法还包括：
    所述第二网络设备向所述第一网络设备发送所述处理能力指示信息、所述能力过滤参数或完整性标识中的至少一种，所述完整性标识用于指示所述终端设备的能力信息是否完整。
  10. 根据权利要求6-9任一项所述的通信方法，其特征在于，
    所述第一网络设备是接入网设备；以及
    所述第二网络设备是核心网设备或接入网设备。
  11. 一种通信方法，其特征在于，包括：
    接入网设备向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终 端设备上报能力信息；
    所述接入网设备接收来自所述终端设备的能力信息。
  12. 根据权利要求11所述的通信方法，其特征在于，
    所述能力上报指示信息包括能力过滤参数和第一指示信息，所述第一指示信息用于指示在第一条件满足时是否应用能力过滤参数，所述能力过滤参数用于指示能力信息的范围，所述第一条件为第一能力集合能够被上报，所述第一能力集合为所述终端设备的能力集合。
  13. 根据权利要求11或12所述的通信方法，其特征在于，
    所述能力上报指示信息包括分段数量阈值，所述分段数量阈值为能力信息传输的最大分段数量。
  14. 根据权利要求13所述的方法，其特征在于：
    所述终端设备的能力信息承载于来自所述终端设备的N个分段中，所述N小于或者等于所述分段数量阈值。
  15. 根据权利要求11所述的通信方法，其特征在于，所述方法还包括：
    所述接入网设备从所述终端设备接收完整性标识，所述完整性标识用于指示来自所述终端设备的能力信息是否完整；和/或
    所述接入网设备向核心网设备发送完整性标识，所述完整性标识用于指示来自所述终端设备的能力信息是否完整。
  16. 根据权利要求11-15任一项所述的通信方法，其特征在于，所述方法还包括：
    所述接入网设备向核心网设备发送能力过滤参数，所述能力过滤参数包括带宽信息、频带信息或公共陆地移动网络PLMN信息中的至少一种。
  17. 根据权利要求11所述的通信方法，其特征在于，
    接入网设备向终端设备发送能力上报指示信息之前，还包括：
    接入网设备接收核心网设备发送的能力查询消息，或者
    接入网设备接收核心网设备发送的初始上下文建立消息，其中没有携带终端设备的能力信息。
  18. 一种能力上报方法，其特征在于，包括：
    终端设备接收来自接入网设备的能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息；
    所述终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息。
  19. 根据权利要求18所述的终端能力上报方法，其特征在于，
    所述能力上报指示信息包括第一指示信息；
    所述终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息，包括：
    所述终端设备根据所述第一指示信息，向所述接入网设备发送能力信息；
    其中，所述第一指示信息用于指示在第一条件满足时是否应用能力过滤参数，
    所述能力过滤参数用于指示能力信息的范围，所述第一条件为第一能力集合能够被上报，所述第一能力集合为所述终端设备的能力集合。
  20. 根据权利要求18或19所述的终端能力上报方法，其特征在于，
    所述能力上报指示信息包括分段数量阈值，所述分段数量阈值为能力信息传输的最大分段数量。
    所述终端设备根据所述能力上报指示信息，向所述接入网设备发送能力信息，包括：
    所述终端设备向所述接入网设备发送N个分段信息，所述N个分段信息承载所述终端设 备的能力信息，所述N小于或者等于所述分段数量阈值。
  21. 根据权利要求18-20任一项所述的终端能力上报方法，其特征在于，所述方法还包括:
    所述终端设备向接入网设备发送完整性标识，所述完整性标识用于指示所述终端设备的能力信息是否完整。
  22. 一种通信方法，其特征在于，包括：
    核心网设备从接入网设备接收终端设备的能力信息，以及第三指示信息；
    其中，所述第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用于指示能力信息的范围，所述完整性标识用于指示所述终端设备的能力信息是否完整；
    所述核心网设备根据所述第三指示信息确定所述能力信息是否接收完全。
  23. 一种装置，包括存储器以及至少一个处理器，所述存储器用于存储指令或者程序，其特征在于：
    当所述指令或程序被所述至少一个处理器执行，以使所述装置执行如权利要求1-5中任意一项所述的通信方法，或者，以使所述装置执行如6-10中任意一项所述的通信方法，或者，以使所述装置执行如11-17中任意一项所述的通信方法，或者，以使所述装置执行如18-21中任意一项所述的通信方法，或者，以使所属装置执行22中所述的通信方法。
  24. 一种通信装置，其特征在于，包括：
    发送单元，用于向网络设备发送处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指示所述第一网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；
    接收单元，用于接收来自所述网络设备的终端设备的能力信息。
  25. 一种通信装置，其特征在于，包括：
    接收单元，用于接收来自网络设备的的处理能力指示信息和能力过滤参数中的至少一个，所述处理能力指示信息用于指示所述网络设备的处理能力，所述能力过滤参数用于指示能力信息的范围；
    发送单元，用于根据处理能力指示信息和能力过滤参数中的至少一个，向所述网络设备发送终端设备的能力信息。
  26. 一种通信装置，其特征在于，包括：
    发送单元，用于向终端设备发送能力上报指示信息，所述能力上报指示信息用于指示所述终端设备上报能力信息；
    接收单元，用于接收来自所述终端设备的能力信息。
  27. 一种通信装置，其特征在于，包括：
    接收单元，用于接收来自接入网设备的能力上报指示信息；
    发送单元，用于根据所述能力上报指示信息，向所述接入网设备发送能力信息。
  28. 一种通信装置，其特征在于，包括：
    接收单元，用于从接入网设备接收终端设备的能力信息，所述能力信息包含第三指示信息；
    所述第三指示信息包括能力过滤参数、完整性标识中的至少一种，所述能力过滤参数用于指示能力信息的范围，所述完整性标识用于指示所述终端设备的能力信息是否完整；
    所述接收单元，还用于根据所述第三指示信息确定所述能力信息是否接收完全。
  29. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被计算机 执行时，实现如权利要求1-5中任意一项所述的通信方法，或者，实现如权利要求6-10中任意一项所述的能力传送方法，或者，实现如权利要求11-17中任意一项所述的通信方法，或者，实现如权利要求18-21中任意一项所述的能力上报方法，或者，实现权利要求22中所述的通信方法。
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