WO2023045173A1 - 一种小区切换方法及通信装置 - Google Patents

一种小区切换方法及通信装置 Download PDF

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Publication number
WO2023045173A1
WO2023045173A1 PCT/CN2021/143386 CN2021143386W WO2023045173A1 WO 2023045173 A1 WO2023045173 A1 WO 2023045173A1 CN 2021143386 W CN2021143386 W CN 2021143386W WO 2023045173 A1 WO2023045173 A1 WO 2023045173A1
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Prior art keywords
network device
terminal device
configuration information
module
target
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PCT/CN2021/143386
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English (en)
French (fr)
Inventor
邓云
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展讯通信(上海)有限公司
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Publication of WO2023045173A1 publication Critical patent/WO2023045173A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the communication field, in particular to a cell switching method and a communication device.
  • a Dual Active Protocol Stack (DAPS) handover is introduced, that is, during the handover process, the terminal device maintains communication with the source network device and the target network device at the same time. After the terminal device communicates with the target cell normally, The connection with the source network device is released, thereby reducing the interruption delay during the handover process.
  • DAPS Dual Active Protocol Stack
  • the source network device and the target network device connected to the terminal device have only one serving cell. If the source network device is in the state of Carrier Aggregation (CA) before the handover, that is, the source network device includes at least two serving cells, namely the primary serving cell (PCell) and one or more secondary serving cells (SCell) , the source network device needs to release the secondary serving cell before sending the DAPS handover command.
  • CA Carrier Aggregation
  • the terminal device to be unable to maintain the carrier aggregation state during the DAPS handover process, thereby adversely affecting the transmission rate. Therefore, how to realize the DAPS handover in the carrier aggregation state is an urgent problem to be solved.
  • the present application provides a cell handover method and a communication device, so that terminal equipment can implement DAPS handover in a carrier aggregation state.
  • the present application provides a cell handover method applied to a source network device, the method comprising: sending a handover request to a target network device, where the handover request includes capability information of the terminal device and configuration information of one or more DRBs, The capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; receiving the handover request confirmation sent by the target network device, the handover request confirmation includes the target side wireless network of the terminal device Parameter configuration information; sending the target side wireless parameter configuration information to the terminal device.
  • the source network device sends a handover request to the target network device, the handover request includes capability information of the terminal device and configuration information of one or more DRBs, and the capability information includes that the terminal device supports DAPS under carrier aggregation Handover, the configuration information indicates that at least one DRB is configured as DAPS handover; receive the handover request confirmation sent by the target network device, the handover request confirmation includes the target side wireless parameter configuration information of the terminal device; and then send the target side wireless parameter configuration information to the terminal device Wireless parameter configuration information. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device.
  • the method before sending the handover request to the target network device, the method further includes: sending a reconfiguration signaling for reducing the configuration of the source network device to the terminal device. Based on this possible implementation manner, it is beneficial for the target network device to make full use of the unused processing capability of the terminal device, and reasonably configure the bandwidth combination on the target network device side.
  • the method before sending the handover request to the target network device, the method further includes: sending instruction information for obtaining a bandwidth combination to the terminal device, where the instruction information is used to request the terminal device to report the bandwidth combination supported by the terminal device. Bandwidth combination information on the target network device side; receiving bandwidth combination information on the target network device side supported by the terminal device sent by the terminal device. Based on this possible implementation, it is beneficial to improve the rationality and reliability of the wireless parameters configured by the target network device for the terminal device, and at the same time, this method can effectively reduce the overhead of the number of capability bits.
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, after sending the target side wireless parameter configuration information to the terminal device, interrupting communication with the terminal device.
  • the present application provides a cell handover method, which is applied to a target network device, and the method includes: receiving a handover request sent by a source network device, where the handover request includes capability information of the terminal device and configuration information of one or more DRBs , the capability information includes that the terminal device supports DAPS handover under carrier aggregation, the configuration information indicates that at least one DRB is configured for DAPS handover; determine the target side wireless parameter configuration information of the terminal device based on the handover request; send a handover request confirmation to the source network device , the handover request confirmation includes the wireless parameter configuration information of the target side.
  • the target network device receives the handover request sent by the source network device, the handover request includes capability information of the terminal device and configuration information of one or more DRBs, and the capability information includes the capability information of the terminal device supporting carrier aggregation DAPS handover, the configuration information indicates that at least one DRB is configured for DAPS handover; determine the target side wireless parameter configuration information of the terminal device based on the handover request; then send a handover request confirmation to the source network device, the handover request confirmation includes the target side wireless parameters configuration information. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device.
  • the present application provides a cell handover method, which is applied to a terminal device.
  • the method includes: accessing a source network device, and acquiring source-side wireless parameter configuration information configured by the source network device for the terminal device; receiving source network The target side wireless parameter configuration information of the terminal device sent by the device; DAPS handover is performed based on the target side wireless parameter configuration information.
  • the terminal device accesses the source network device, and obtains the source-side wireless parameter configuration information configured for the terminal device by the source network device; receives the target-side wireless parameter configuration information of the terminal device sent by the source network device information; and then perform DAPS handover based on the wireless parameter configuration information of the target side. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the method before receiving the target side wireless parameter configuration information of the terminal device sent by the source network device, the method further includes: receiving the reconfiguration information sent by the source network device for reducing the configuration of the source network device and adjust the source side wireless parameter configuration information based on the reconfiguration signaling.
  • the method before receiving the target side wireless parameter configuration information of the terminal device sent by the source network device, the method further includes: receiving instruction information for obtaining a bandwidth combination sent by the source network device, the instruction information It is used to request the terminal device to report the bandwidth combination information supported by the terminal device on the target network device side; determine the bandwidth combination supported by the terminal device on the target network device side based on the wireless parameter configuration information on the source side and the capability information of the terminal device information; sending the bandwidth combination information supported by the terminal device on the side of the target network device to the source network device.
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, after receiving the target side wireless parameter configuration information sent by the source network device, interrupting the connection with the source network device device communication.
  • the present application provides a cell handover method, which is applied to a source network device, and the method includes: sending a handover request to a target network device, where the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and The source side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured as DAPS handover; upon receiving the handover request confirmation sent by the target network device, the The handover request confirmation includes target side wireless parameter configuration information of the terminal device; and the target side wireless parameter configuration information is sent to the terminal device.
  • the source network device sends a handover request to the target network device, where the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device, the The capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; receiving the handover request confirmation sent by the target network device, and the handover request confirmation includes the target side wireless parameter configuration of the terminal device information; and then send the target side wireless parameter configuration information to the terminal device. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device.
  • the handover request acknowledgment further includes first indication information for instructing to release the serving cell of the source network device.
  • the method further includes: releasing one or more serving cells based on the first indication information.
  • the method further includes: sending reconfiguration signaling for reducing the configuration of the source network device to the terminal device based on the first indication information.
  • the present application provides a cell handover method, which is applied to a target network device, and the method includes: receiving a handover request sent by a source network device, where the handover request includes capability information of the terminal device and configuration information of one or more DRBs and source-side wireless parameter configuration information of the terminal device, the capability information including that the terminal device supports DAPS switching under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS switching; determining the target-side wireless parameters of the terminal device based on the switching request Configuration information; sending a handover request confirmation to the source network device, where the handover request confirmation includes the wireless parameter configuration information of the target side.
  • the target network device receives the handover request sent by the source network device, where the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device,
  • the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; determine the target side wireless parameter configuration information of the terminal device based on the handover request; and then send a handover request confirmation to the source network device , the handover request confirmation includes the wireless parameter configuration information of the target side. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device.
  • the determining the target side wireless parameter configuration information of the terminal device based on the handover request includes: determining based on the handover request, the load information of the target network device, and the service quality requirements of one or more DRBs The wireless parameter configuration information of the target side.
  • the handover request acknowledgment further includes first indication information for instructing to release the serving cell of the source network device
  • the method further includes: based on the target side radio parameter configuration information, the source side radio The parameter configuration information and the bandwidth combination information of the DAPS switching supported by the terminal device determine the first indication information.
  • the present application provides a method for cell handover, which is applied to a terminal device.
  • the method includes: accessing a source network device, and acquiring source-side wireless parameter configuration information configured by the source network device for the terminal device; receiving source network The target-side wireless parameter configuration information of the terminal device sent by the device; DAPS switching is performed based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information.
  • the terminal device accesses the source network device, and obtains the source-side wireless parameter configuration information configured by the source network device for the terminal device; receives the target-side wireless parameter configuration information of the terminal device sent by the source network device information; and then perform DAPS handover based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the DAPS handover before performing the DAPS handover based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information, it further includes: receiving the reconfiguration sent by the source network device for reducing the configuration of the source network device Signaling: adjusting the source side wireless parameter configuration information based on the reconfiguration signaling.
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, after receiving the target side wireless parameter configuration information sent by the source network device, interrupting the connection with the source network device Communication.
  • the present application provides a cell handover method, which is applied to a source network device, and the method includes: sending a handover request to a target network device, where the handover request includes capability information of the terminal device, and the capability information includes the carrier supported by the terminal device DAPS handover under aggregation; receiving a handover request acknowledgment sent by the target network device, the handover request acknowledgment including the target side wireless parameter configuration information of the terminal device; sending the target side wireless parameter configuration information to the terminal device.
  • the source network device sends a handover request to the target network device, where the handover request includes capability information of the terminal device, and the capability information includes that the terminal device supports DAPS handover under carrier aggregation; receiving the handover request sent by the target network device A handover request acknowledgment, where the handover request acknowledgment includes target-side wireless parameter configuration information of the terminal device; and then sends the target-side wireless parameter configuration information to the terminal device. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the present application provides a method for cell handover, which is applied to a target network device.
  • the method includes: receiving a handover request sent by a source network device, where the handover request includes capability information of the terminal device, and the capability information includes the carrier supported by the terminal device.
  • DAPS handover under aggregation; determine the wireless parameter configuration information of the target side based on the handover request, the load information of the target network device, and the service quality requirements of one or more DRBs; send a handover request confirmation to the source network device, and the handover request confirmation It includes the wireless parameter configuration information of the target side.
  • the target network device receives the handover request sent by the source network device, the handover request includes capability information of the terminal device, and the capability information includes that the terminal device supports DAPS handover under carrier aggregation; based on the handover request, the The load information of the target network device and the service quality requirements of one or more DRBs determine the target side wireless parameter configuration information; then send a handover request confirmation to the source network device, and the handover request confirmation includes the target side wireless parameter configuration information. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the present application provides a cell handover method, which is applied to a terminal device.
  • the method includes: accessing a source network device, and obtaining source-side wireless parameter configuration information configured by the source network device for the terminal device; receiving source network Target-side wireless parameter configuration information of the terminal device sent by the device; DAPS handover is performed based on the target-side wireless parameter configuration information and configuration information of one or more DRBs.
  • the terminal device accesses the source network device, and obtains the source-side wireless parameter configuration information configured for the terminal device by the source network device; receives the target-side wireless parameter configuration information of the terminal device sent by the source network device information; and then perform DAPS handover based on the wireless parameter configuration information of the target side and the configuration information of one or more DRBs. Therefore, through this method, the terminal device can realize DAPS handover in the carrier aggregation state.
  • the target network device after receiving the target side wireless parameter configuration information of the terminal device sent by the source network device, further includes: Adjust wireless parameter configuration information. Based on this possible implementation manner, it is beneficial for the target network device to make full use of the unused processing capability of the terminal device, and reasonably configure the bandwidth combination on the target network device side.
  • the method further includes: interrupting communication with the source network device if the wireless parameter configuration of the terminal device on the source network device side is completely released.
  • the present application provides a data transmission method, which is applied to a terminal device, and the method includes: during the DAPS handover process, if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured as The DRB switched by DAPS allows data transmission with the source network device through the secondary cell of the source network device.
  • the radio link failure or beam failure occurs in the primary cell of the source network device, the data transmission with the source network device will continue through the secondary cell. data transmission.
  • the terminal device in the process of performing DAPS handover, if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured as a DRB for DAPS handover, it is allowed to communicate with the source network through the secondary cell of the source network device The device performs data transmission.
  • the terminal device continues to perform data transmission with the source network device through the secondary cell. Therefore, through this method, the terminal device is configured as a DRB for DAPS handover, which can reduce the time delay of handover interruption during the DAPS handover process.
  • the method further includes: during data transmission between the terminal device and the source network device through the secondary cell, if a beam failure occurs in the secondary cell, interrupting communication with the source network device.
  • the method further includes: if the DRB configured for DAPS handover by the terminal device does not allow data transmission through the primary cell of the source network device, after receiving the handover command, stop communicating with the primary cell through the primary cell
  • the source network device performs data transmission, or preferentially performs data transmission with the source network device through the secondary cell. Based on this possible implementation, it is possible to reduce the processing complexity of the terminal equipment, reduce the transmission power of the terminal equipment, and at the same time meet the interruption delay requirement of the DRB configured with DAPS handover during the handover process.
  • the method further includes: if the DRB configured for DAPS handover by the terminal device does not allow data transmission through the secondary cell of the source network device, after receiving the handover command, stop communicating with the secondary cell through the secondary cell.
  • the source network device performs data transmission, or preferentially performs data transmission with the source network device through the primary cell. Based on this possible implementation, it is possible to reduce the processing complexity of the terminal equipment, reduce the transmission power of the terminal equipment, and at the same time meet the interruption delay requirement during the handover process of the DRB configured with DAPS handover.
  • the present application provides a communication device, the communication device is used to implement the above-mentioned units of the method in the first aspect to the tenth aspect and any possible implementation manner thereof.
  • the present application provides a communication device, where the communication device includes a processor, and the processor is configured to execute the method in the first aspect to the tenth aspect and any possible implementation manner thereof.
  • the present application provides a communication device, the communication device includes a processor and a memory, the memory is used to store computer-executable instructions; the processor is used to call the program code from the memory to execute the first The method in the first aspect to the tenth aspect and any possible implementation thereof.
  • the present application provides a communication device, the communication device includes a processor and a transceiver, the transceiver is used to receive signals or send signals; the processor is used to implement the first aspect to The method in the tenth aspect and any possible implementation thereof.
  • the present application provides a communication device, the communication device includes a processor, a memory, and a transceiver, the transceiver is used to receive signals or send signals; the memory is used to store program codes; The processor is configured to call the program code from the memory to execute the method in the first aspect to the tenth aspect and any possible implementation manner thereof.
  • the present application provides a chip, the chip includes a processor and a communication interface, and the processor is configured to execute the methods in the first to tenth aspects and any possible implementation thereof .
  • the present application provides a module device, which is characterized in that the module device includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used for the The module device provides power; the storage module is used to store data and instructions; the communication module is used for internal communication of the module device, or for the module device to communicate with external devices; the chip module is used to execute Such as the method in the first aspect to the tenth aspect and any possible implementation thereof.
  • the present application provides a computer-readable storage medium, the computer-readable instruction is stored in the computer-readable instruction, and when the computer-readable instruction is run on the communication device, the communication device executes the above-mentioned first Aspect to the tenth aspect and the method in any possible implementation manner thereof.
  • the present application provides a computer program or a computer program product, including codes or instructions, which, when the codes or instructions are run on a computer, cause the computer to execute the method according to any one of the first aspect to the tenth aspect.
  • FIG. 1 is a schematic diagram of a terminal device processing process in a DAPS handover provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 3 is a flow chart of a cell handover method provided by an embodiment of the present application.
  • FIG. 4 is a flow chart of another cell handover method provided by an embodiment of the present application.
  • FIG. 5 is a flow chart of another cell handover method provided by an embodiment of the present application.
  • FIG. 6 is a flow chart of a data transmission method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • Terminal equipment 1. Terminal equipment:
  • the terminal device in the embodiment of the present application is a device with a wireless communication function, and may be called a terminal (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) ), access terminal equipment, vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • Terminal equipment can be fixed or mobile.
  • the terminal device may support at least one wireless communication technology, such as LTE, new radio (new radio, NR), and so on.
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications
  • the terminal device may also be a device having a transceiver function, such as a chip system.
  • the chip system may include a chip, and may also include other discrete devices, which is not limited in this embodiment of the present application.
  • the network device in this embodiment of the present application is a device that provides a wireless communication function for a terminal device, and may also be referred to as a radio access network (radio access network, RAN) device, or an access network element.
  • the network device may support at least one wireless communication technology, such as LTE, NR and so on.
  • the network equipment includes but is not limited to: a next-generation base station (generation nodeB, gNB), an evolved node B (evolved node B, eNB) in a fifth-generation mobile communication system (5th-generation, 5G), a wireless network control radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc.
  • generation nodeB generation nodeB, gNB
  • an evolved node B evolved node B
  • eNB evolved node B
  • 5th-generation 5G
  • 5G fifth-generation mobile communication system
  • RNC wireless network control radio network controller
  • node B node B
  • the network device can also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be Relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or network devices in future evolved PLMNs, etc.
  • the network device may also be an apparatus having a wireless communication function for the terminal device, such as a chip system.
  • the system-on-a-chip may include a chip, and may also include other discrete devices.
  • the network device can also communicate with an Internet Protocol (Internet Protocol, IP) network, such as the Internet (internet), a private IP network, or other data networks.
  • IP Internet Protocol
  • the network equipment can also be divided into source network equipment and target network equipment.
  • the source network device is a network device connected to the terminal device before switching
  • the target network device is a network device connected to the terminal device after network switching.
  • Dual Active Protocol Stack (DAPS) switching means that after the terminal device receives a Radio Resource Control (RRC) message (handover command) for switching, it keeps the connection of the source network device until it successfully randomly accesses the target After the network device, the target network device notifies the terminal device of the switching process of releasing the connection with the source network device.
  • RRC Radio Resource Control
  • DRB Data Radio Bearer
  • the source network device needs to uniformly allocate PDCP sequences for Packet Data Convergence Protocol (PDCP) packets Number (Sequence Number, SN), and then send part of the data packets and the corresponding SN to the target network device, and then the target network device sends the downlink data to the terminal device during the handover process, and the downlink data sent by the target network device adopts the target
  • PDCP Packet Data Convergence Protocol
  • SN Sequence Number
  • the terminal device receives the data packets sent by both sides, performs unified sorting, uses different decompression algorithms and decryption algorithms according to different receiving sources, and then sends them to the upper layer in sequence.
  • a PDCP entity needs to execute an independent security algorithm and an independent header compression algorithm on both the source network device side and the target network device side.
  • the terminal device it is necessary to receive the data packets sent by the source network device and the target network device at the same time.
  • the terminal device applies the corresponding security algorithm and executes the corresponding header compression algorithm according to the different data sources, and uses the public sorting function to obtain a complete, Ordered packets.
  • the terminal device For a DRB that applies DAPS switching, during the switching process, the terminal device uniformly allocates PDCP SN for the data packets, some data packets are sent to the source network device through the source link, and the other part of the data packets are sent to the source network device through the source link. Send it to the target network device through the new link.
  • the terminal device uses different security algorithms and header compression algorithms for data packets. For example, for data packets sent through the source link, it needs to be processed according to the security algorithm and header compression algorithm on the source network device side; For data packets sent through the new link, it needs to be processed according to the security algorithm and header compression algorithm on the target network device side.
  • DAPS handover there is only one PDCP entity in the handover process.
  • the PDCP entity needs to process two sets of security algorithms and two sets of header compression algorithms.
  • Configuring DAPS switching can be applied to key update scenarios (reconfiguration with sync for DAPS and security key refresh), or to scenarios that do not require key update (reconfiguration with sync for DAPS but without security key refresh).
  • key update scenarios reconfiguration with sync for DAPS and security key refresh
  • scenarios that do not require key update for the PDCP entity of DAPS DRB, it is also necessary to establish encryption and integrity protection functions on the target side.
  • FIG. 1 is a schematic diagram of a terminal device processing process in a DAPS handover provided by an embodiment of the present application.
  • the terminal device When the terminal device performs DAPS handover, it needs to reconfigure the PDCP entity configured as the data radio bearer for DAPS handover, that is, create a new Radio Link Control (RLC) entity and a Medium Access Control protocol (Medium Access Control) entity. , MAC) entity, at this time, one PDCP entity is associated with two RLC entities.
  • the terminal device continues to monitor the radio link (Radio Link Monitor, RLM) on the source side, and continues to receive the data sent by the source network device.
  • the terminal device performs a random access procedure in the target cell.
  • RLM Radio Link Monitor
  • the handover timer (T304) expires and the source link is available, there is no need to trigger link re-establishment, continue to communicate through the source link, and continue the failure detection of the source link.
  • the terminal device successfully randomly accesses the target network device, the terminal device switches uplink PDCP data transmission, and continues the Hybrid Automatic Repeat Request (HARQ) transmission and retransmission of the source network device.
  • HARQ Hybrid Automatic Repeat Request
  • the terminal device receives the data of the source network device and the target network device at the same time, and uses two sets of independent security algorithms and two sets of header compression algorithms to perform public sorting. If the target link fails, a rebuild is triggered immediately, and then failure detection of the source link is stopped.
  • the terminal device After the terminal device successfully accesses the target cell, it stops monitoring the radio link on the source side, and then the target network device notifies the terminal device to release the link on the source side, and the PDCP entity configured as the data radio bearer for DAPS handover returns to normal, and at the same time releases the source link.
  • CA Carrier Aggregation
  • Pcell Primary Cell
  • Scell Secondary Cell
  • the embodiment of the present application can be applied to the schematic diagram of the network architecture shown in FIG. 2.
  • the network architecture shown in FIG. 2 is the network architecture of the wireless communication system.
  • the number and configuration of the devices do not constitute a limitation to the embodiment of the present application.
  • the network device can be a base station (Base Station, BS).
  • the base station can provide communication services to multiple terminal devices, and multiple base stations can also provide communication services to the same terminal device.
  • the terminal device supports DAPS handover, and the source network device and the target network device can configure aggregated carriers.
  • both the source network device and the target network device connected to the terminal device have only one serving cell. If the source network device is in the state of Carrier Aggregation (CA) before handover, that is, the serving cell of the source network device is composed of a primary cell and a secondary cell, the source network device needs to release the secondary cell before sending a DAPS handover command.
  • CA Carrier Aggregation
  • Such a method causes the terminal device to be unable to maintain the carrier aggregation state during the DAPS handover process, thereby adversely affecting the transmission rate. Therefore, how to realize the DAPS handover in the carrier aggregation state is an urgent problem to be solved.
  • an embodiment of the present application provides a cell handover method.
  • the cell switching method is described in detail below.
  • FIG. 3 is a flow chart of a cell switching method provided by an embodiment of the present application.
  • the cell switching method includes steps 301 to 306 .
  • the execution subject of the method shown in FIG. 3 may be a terminal device, a source network device, and a target network device (for example, refer to FIG. 2 ), and the execution subject may also be one of the terminal device, the source network device, and the target network device. chip.
  • the execution body of the method shown in FIG. 3 takes a terminal device, a source network device, and a target network device as examples. The method includes but not limited to the following steps.
  • the terminal device accesses the source network device, and obtains source-side wireless parameter configuration information configured by the source network device for the terminal device.
  • the source-side radio parameter configuration information may be configuration information of one or more DRBs, carrier configuration information, and the like.
  • the terminal device establishes three data radio bearers, namely DRB1, DRB2 and DRB3.
  • the source network device can configure DAPS switching for DRB1, and DRB2 and DRB3 do not configure DAPS switching; because DRB2 and DRB3 Therefore, the source network device configures carrier aggregation for the terminal device, that is, the terminal device configures two serving cells, including a primary cell and a secondary cell.
  • the source network device sends a handover request to the target network device, the handover request includes capability information of the terminal device and configuration information of one or more DRBs, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates At least one DRB is configured for DAPS switching.
  • the source network device after receiving the measurement report sent by the terminal device, finds that the terminal device is no longer in the central area of the source cell. In order to meet the mobility requirements, the source network device selects an appropriate The cell serves as the target cell for the handover of the terminal device, and the source network device may send a handover request to the network device to which the target cell belongs (ie, the target network device).
  • the handover request may include capability information of the terminal device and configuration information of one or more DRBs.
  • the capability information of the terminal device includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information of the one or more DRBs indicates that at least one DRB is configured for DAPS handover.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device. That is to say, the target network device can determine the target side wireless parameter configuration information that the target network device can configure for the terminal device through the bandwidth combination information of the DAPS switching supported by the terminal device. Based on this possible implementation manner, the rationality of the wireless parameters configured by the target network device for the terminal device can be guaranteed.
  • the bandwidth combination information of DAPS handover supported by the terminal device can be directly indicated through the capability of the terminal device, for example, it can be indicated through the bandwidth combination in New Radio Dual Connectivity (NR DC), or through the new The introduced bandwidth combination dedicated to DAPS handover under carrier aggregation is used for indication, which is not limited here.
  • NR DC New Radio Dual Connectivity
  • the bandwidth combination information of the DAPS handover supported by the terminal device is a 2+2 bandwidth combination type, that is, both the source network device and the target network device can only have two carriers at most. Therefore, the target network device can configure one carrier or two carriers for the terminal device. Taking the target network device configuring two carriers for the terminal device as an example, the target network device configures the target side wireless parameter configuration information in the handover command for the terminal device, including Information such as the frequency and bandwidth of the two carriers. Subsequently, the target network device returns a handover request acknowledgment to the source network device, and the handover request acknowledgment may include the wireless parameter configuration information of the target side, and random access related parameters required by the terminal device to access the target cell.
  • the method before the source network device sends the handover request to the target network device, the method further includes: sending a reconfiguration signaling for reducing the configuration of the source network device to the terminal device.
  • the source network device determines that a certain DRB of the terminal device needs to be configured with DAPS switching, it can reconfigure the source-side wireless parameter configuration information of the terminal device on the source network device.
  • a manner of reducing the configuration of the source network device may be reducing the number of serving cells, for example, reducing from multiple serving cells to one or two serving cells. Based on this possible implementation manner, it is beneficial for the target network device to make full use of the unused processing capability of the terminal device, and reasonably configure the bandwidth combination on the target network device side.
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, the source network device interrupts communication with the terminal device after sending the target side wireless parameter configuration information to the terminal device.
  • the reconfiguration signaling indicates to release all serving cells, the handover is implemented according to the normal handover process, that is, the source network device interrupts the communication with the terminal device, and the DAPS handover is not implemented.
  • the method before the source network device sends the handover request to the target network device, the method further includes: sending instruction information to the terminal device for obtaining a bandwidth combination, where the instruction information is used to request the terminal device to report that the terminal device supports The bandwidth combination information on the target network device side; receiving the bandwidth combination information supported by the terminal device on the target network device side sent by the terminal device.
  • the source network device determines that at least one DRB established by the terminal device needs to be configured with DAPS switching, when reconfiguring the wireless parameters of the terminal device, it can request the terminal device to report the bandwidth combination information supported by the terminal device on the target network device side during DAPS switching, and the terminal The device determines the bandwidth combination information on the target network device side that can be supported during the DAPS handover process based on the bandwidth combination configured by the source network device at this time and its own capabilities. Based on this possible implementation method, it is beneficial to improve the rationality and reliability of the wireless parameters configured by the target network device for the terminal device.
  • this method can effectively reduce the overhead of the number of capability bits, because the source supported by the terminal device in DAPS handover
  • the bandwidth combination of the side and the target side will increase sharply with the increase of the number of frequency bands.
  • the source network device reconfigures the source-side wireless parameter configuration information for the terminal device through RRC reconfiguration signaling, and sends the instruction information of obtaining the bandwidth combination to the terminal device, and the instruction information is used to request the terminal device to report the Bandwidth composition information on the target network device side supported by the terminal device.
  • the source network device receives the bandwidth combination information on the target network device side supported by the terminal device in the DAPS handover reported by the terminal device, it combines the measurement report of the adjacent cell reported by the terminal device and the supported frequency band of the adjacent base station that it knows Combining, switching requests can be selectively sent to different target base stations, and the switching requests can indicate bandwidth combination information on the target network device side supported by the terminal device in DAPS switching.
  • the target network device determines target side wireless parameter configuration information of the terminal device based on the handover request.
  • the target network device receives the handover request sent by the source network device, and determines the target side wireless parameter configuration information of the terminal device according to the information included in the handover request, that is, determines the content of the handover request confirmation message.
  • the target network device may determine the target side wireless parameter configuration information of the terminal device according to the bandwidth combination information of DAPS switching supported by the terminal device included in the handover request.
  • the target network device sends a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the target side wireless parameter configuration information.
  • the target network device after determining the wireless parameter configuration information of the target side, sends a handover request acknowledgment to the source network device, and the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • the source network device After the source network device receives the handover request confirmation, the source network device does not parse the target side wireless parameter configuration information, and forwards the target side wireless parameter configuration information included in the handover request confirmation to the terminal device through RRC reconfiguration signaling.
  • the source network device sends the target side wireless parameter configuration information to the terminal device.
  • the source network device after receiving the handover request acknowledgment sent by the target network device, the source network device sends the target side wireless parameter configuration information contained in the handover request acknowledgment to the terminal device, and the subsequent terminal device can configure the target side wireless parameters according to the Information to perform DAPS handover.
  • the terminal device performs DAPS handover based on the target side wireless parameter configuration information.
  • the terminal device receives the target side wireless parameter configuration information sent by the source network device, and then performs DAPS handover based on the target side wireless parameter configuration information.
  • the source-side wireless parameter configuration information indicates that the source network device configures carrier aggregation for the terminal device
  • the target-side wireless parameter configuration information indicates that the target network device configures carrier aggregation for the terminal device. That is to say, at least one of the source network device and the target network device configures carrier aggregation for the terminal device.
  • the terminal device For a DRB configured with DAPS switching, the terminal device needs to reconfigure the PDCP entity corresponding to the DRB during the DAPS switching process, so that the terminal device can simultaneously process the data of the DRB sent by the source network device and the target network device.
  • the terminal device For uplink data transmission, the terminal device also needs to process the data sent to the source network device and the target network device at the same time. It should be noted that when the terminal device does not support sending uplink data to the source network device and the target network device at the same time, the terminal device may send data to the source network device and the target network device respectively in a time-division manner.
  • the terminal device before the terminal device receives the target side wireless parameter configuration information sent by the source network device, it further includes: receiving the reconfiguration signaling sent by the source network device for reducing the configuration of the source network device; The configuration signaling adjusts the source side wireless parameter configuration information. Based on this possible implementation manner, it is beneficial for the target network device to make full use of the unused processing capability of the terminal device, and reasonably configure the bandwidth combination on the target network device side.
  • the original source-side wireless parameter configuration information of the terminal device is a bandwidth combination of the primary cell and the secondary cell (PCell+Scell1) identified as 1.
  • the reconfiguration signaling instructs the terminal device to reduce the number of serving cells from 2 to 1 serving cell, then the terminal device adjusts the source side wireless parameter configuration information to a primary cell (PCell) based on the reconfiguration signaling, and releases the secondary cell ( Scell1).
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, the terminal device interrupts communication with the source network device after receiving the target side wireless parameter configuration information sent by the source network device.
  • the terminal device performs handover according to a normal handover process, that is, the terminal device interrupts communication with the source network device and does not perform DAPS handover.
  • the terminal device before the terminal device receives the target side wireless parameter configuration information sent by the source network device, it further includes: receiving instruction information for obtaining bandwidth combination sent by the source network device, the instruction information is used to request the terminal device to report The bandwidth combination information supported by the terminal device on the target network device side; determine the bandwidth combination information supported by the terminal device on the target network device side based on the source side wireless parameter configuration information and the capability information of the terminal device; Send bandwidth combination information on the target network device side supported by the terminal device. Based on this possible implementation manner, it is beneficial to improve the rationality and reliability of the wireless parameters configured by the target network device for the terminal device.
  • the terminal device receives the instruction information for obtaining the bandwidth combination sent by the source network device, and the source side wireless parameter configuration information configured by the source network device for the terminal device is the bandwidth of the primary cell and the secondary cell (PCell+Scell1) identified as 1 combination.
  • the terminal device determines the bandwidth combination information on the target network device side supported by the terminal device during the DAPS handover process according to the source-side wireless parameter configuration information and the capability information it supports.
  • the target network device can configure the frequency band of a carrier (such as indicating NR Band information), and can also include bandwidth information (that is, the maximum configurable bandwidth size); or the target network device can configure frequency band information of two carriers (such as indicating Intra Band CA, or different frequency band combination information of Inter Band CA), can also indicate the maximum bandwidth size that can be configured for each carrier; or the target network device can configure the frequency band information of three carriers, etc.
  • the terminal device reports the determined bandwidth combination information on the target network device side supported by the terminal device during the DAPS handover process to the source network device.
  • the source network device sends a handover request to the target network device, the handover request includes capability information of the terminal device and configuration information of one or more DRBs, and the capability information includes that the terminal device supports carrier aggregation.
  • DAPS switching the configuration information indicates that at least one DRB is configured as DAPS switching;
  • the target network device determines the target side wireless parameter configuration information of the terminal device based on the switching request, and sends the target side wireless parameter configuration information to the terminal device through the source network device , the terminal device performs DAPS handover based on the target side wireless parameter configuration information. Therefore, based on the method described in FIG. 3 , the terminal device can implement DAPS handover in the carrier aggregation state.
  • FIG. 4 is a flow chart of another cell switching method provided by an embodiment of the present application.
  • the cell switching method includes steps 401 to 406 .
  • the execution subject of the method shown in FIG. 4 may be a terminal device, a source network device, and a target network device (for example, refer to FIG. 2 ), and the execution subject may also be one of the terminal device, the source network device, and the target network device. chip.
  • the execution body of the method shown in FIG. 4 takes a terminal device, a source network device, and a target network device as examples. The method includes but not limited to the following steps.
  • the terminal device accesses the source network device, and obtains source-side wireless parameter configuration information configured by the source network device for the terminal device.
  • step 401 is the same as the specific implementation manner of the above-mentioned step 301, and will not be repeated here.
  • the source network device sends a handover request to the target network device.
  • the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device.
  • the capability information includes the carrier supported by the terminal device For DAPS handover under aggregation, the configuration information indicates that at least one DRB is configured for DAPS handover.
  • the source network device after receiving the measurement report sent by the terminal device, finds that the terminal device is no longer in the central area of the source cell. In order to meet the mobility requirements, the source network device selects an appropriate The cell serves as the target cell for the handover of the terminal device, and the source network device may send a handover request to the network device to which the target cell belongs (ie, the target network device).
  • the handover request may include capability information of the terminal device, configuration information of one or more DRBs, and source-side radio parameter configuration information of the terminal device.
  • the capability information of the terminal device includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information of the one or more DRBs indicates that at least one DRB is configured for DAPS handover.
  • the capability information also includes bandwidth combination information of DAPS handover supported by the terminal device, where the bandwidth combination information includes the bandwidth combination information supported by the terminal device on the source network device side and the bandwidth combination information supported by the terminal device on the target network device side.
  • the bandwidth combination information on the network device side, or the bandwidth combination information includes the bandwidth combination information on the target network device side supported by the terminal device.
  • the handover request acknowledgment further includes first indication information for instructing to release the serving cell of the source network device.
  • the method further includes: the source network device releases one or more serving cells based on the first indication information.
  • the target network device sends a handover request acknowledgment to the source network device, the handover request acknowledgment also includes first instruction information for instructing the release of the serving cell of the source network device, and the source network device releases one or more service cells according to the first instruction information district.
  • the first indication information determined by the target network device indicates to release the secondary cell whose identifier is 1 of the source network device, that is, to release the secondary cell corresponding to the identifier 1.
  • the source network device releases the secondary cell through RRC signaling according to the indication of the first indication information.
  • the method further includes: if the source network device instructs the terminal device to release all serving cells, the source network device interrupts communication with the terminal device after sending the target side wireless parameter configuration information to the terminal device.
  • the terminal device implements the handover according to the normal handover process, that is, interrupts the communication with the terminal device, and does not Implement DAPS switching.
  • the method further includes: sending a reconfiguration signaling for reducing the configuration of the source network device to the terminal device based on the first indication information .
  • the source network device generates reconfiguration signaling according to the first indication information, and reconfigures the source-side wireless parameter configuration information of the terminal device on the source network device.
  • the first indication information determined by the target network device indicates to release the secondary cell whose identifier is 1 of the source network device, that is, to release the secondary cell corresponding to the identifier 1.
  • the source network device obtains the first indication information included in the handover request confirmation, it generates reconfiguration signaling for reducing the configuration of the source network device according to the first indication information, and sends it to the terminal device.
  • the reconfiguration signaling instructs the terminal device to release the secondary cell corresponding to the identity 1.
  • the target network device determines target side wireless parameter configuration information of the terminal device based on the handover request.
  • the target network device receives the handover request sent by the source network device, and determines the target side wireless parameter configuration information of the terminal device according to the information included in the handover request, that is, determines the content of the handover request confirmation message.
  • the target network device may configure its preferred target side wireless parameter configuration information according to the load information of the cell under its jurisdiction and the QoS requirements of one or more DRBs configured with DAPS handover.
  • the target network device determines the target side wireless parameter configuration information of the terminal device based on the handover request, including: based on the handover request, load information of the target network device, and quality of service of one or more DRBs It is required to determine the wireless parameter configuration information of the target side.
  • the target network device can configure its preferred wireless parameter configuration information on the target side according to the load information of the cell under its jurisdiction and the quality of service requirements of one or more DRBs configured for DAPS handover . Based on this possible implementation manner, it is beneficial to improve the rationality and reliability of the wireless parameters configured by the target network device for the terminal device.
  • the handover request acknowledgment further includes first indication information for instructing to release the serving cell of the source network device
  • the method further includes: the target network device based on the target side radio parameter configuration information, the The source-side wireless parameter configuration information and the bandwidth combination information of the DAPS switching supported by the terminal device determine the first indication information.
  • the target network device judges through the target-side wireless parameter configuration information, the source-side wireless parameter configuration information, and the bandwidth combination information of the DAPS switching supported by the terminal device: If the bandwidth capability supported by the terminal device itself is exceeded, that is, the wireless parameter configuration information on the target side exceeds the bandwidth combination supported by the terminal device on the target network device side, it is necessary to instruct the source network device to release (part of) the serving cell.
  • the first indication information indicating to release the serving cell of the source network device is included in the handover request confirmation message.
  • the first indication information may indicate the reduced number of serving cells, or directly indicate the identity of the serving cell that needs to be released, which is not limited here.
  • the target network device may also indicate the bandwidth information configured on the target network device side, so that the source network device may delete some serving cells reasonably.
  • the terminal device can support 2+2 and 1+3 bandwidth combinations, that is, both the source network device and the target network device can only have two carriers at most, or one side can only be configured with one carrier and the other side Up to 3 carriers can be configured.
  • the target network device configures three carriers for the terminal device, and the source network device also configures two carriers (the carrier on the primary cell and the carrier on the secondary cell)
  • the configuration of the source network device and the target network device exceeds Capabilities of the terminal device.
  • the handover request confirmation message returned by the target network device to the source network device in addition to carrying the second wireless parameter configuration information configured by the target network device, it also indicates that the source network device needs to release the information of the serving cell, that is, indicates Release the secondary cell.
  • the target network device sends a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the target side wireless parameter configuration information.
  • the source network device sends the target side wireless parameter configuration information to the terminal device.
  • step 404 and step 405 are the same as the specific implementation manners of the above-mentioned step 304 and step 305, and will not be repeated here.
  • the source network device may simultaneously indicate the release of the serving cell and the target cell in one RRC signaling After receiving the wireless parameter configuration information on the wireless side, the terminal device first releases the serving cell, and then performs handover according to the wireless parameter configuration information on the target side.
  • the source network device can also use two independent RRC signaling to indicate the release of the serving cell and the target side wireless parameter configuration information.
  • the terminal device performs DAPS handover based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information.
  • the terminal device receives the target-side wireless parameter configuration information sent by the source network device, and then performs DAPS switching based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information.
  • the source network device and the target network device configures carrier aggregation for the terminal device.
  • the terminal device before the terminal device receives the target side wireless parameter configuration information sent by the source network device, it further includes: receiving the reconfiguration signaling sent by the source network device for reducing the configuration of the source network device; The configuration signaling adjusts the source side wireless parameter configuration information. Based on this possible implementation manner, it is beneficial for the target network device to make full use of the unused processing capability of the terminal device, and reasonably configure the bandwidth combination on the target network device side.
  • the possible implementation manner is the same as the possible implementation manner described in step 306 above, and details are not repeated here.
  • the original source-side wireless parameter configuration information of the terminal device is a bandwidth combination of the primary cell and the secondary cell (PCell+Scell1) identified as 1.
  • the reconfiguration signaling indicates to release the secondary cell whose identity is 1 of the source network device, that is, to release the secondary cell corresponding to the identity 1, and then the terminal device adjusts the source side wireless parameter configuration information to a primary cell ( PCell), releasing the secondary cell (Scell1) corresponding to the identity 1.
  • the method further includes: if the reconfiguration signaling indicates to release all serving cells, the terminal device interrupts communication with the source network device after receiving the target side wireless parameter configuration information sent by the source network device.
  • the terminal device performs handover according to a normal handover process, that is, the terminal device interrupts communication with the source network device and does not perform DAPS handover.
  • the source network device sends a handover request to the target network device, and the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device.
  • the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover;
  • the target network device determines the target side wireless parameter configuration information of the terminal device based on the handover request, and sets the target side wireless parameter
  • the configuration information is sent to the terminal device through the source network device, and the terminal device performs DAPS switching based on the target side wireless parameter configuration information and the source side wireless parameter configuration information. Therefore, based on the method described in FIG. 4 , the terminal device can implement DAPS handover in the carrier aggregation state.
  • FIG. 5 is a flow chart of another cell switching method provided by the embodiment of the present application.
  • the cell switching method includes steps 501 to 506 .
  • the execution subject of the method shown in FIG. 5 can be a terminal device, a source network device, and a target network device (for example, refer to FIG. 2 ), and the execution subject can also be one of the terminal device, the source network device, and the target network device. chip.
  • the execution body of the method shown in FIG. 5 takes a terminal device, a source network device, and a target network device as examples. The method includes but not limited to the following steps.
  • a terminal device accesses a source network device, and obtains source-side wireless parameter configuration information configured by the source network device for the terminal device.
  • step 501 is the same as the specific implementation manner of the above-mentioned step 301, and will not be repeated here.
  • the source network device sends a handover request to the target network device, where the handover request includes capability information of the terminal device, and the capability information includes that the terminal device supports DAPS handover under carrier aggregation.
  • the source network device after receiving the measurement report sent by the terminal device, finds that the terminal device is no longer in the central area of the source cell. In order to meet the mobility requirements, the source network device selects an appropriate The cell serves as the target cell for the handover of the terminal device, and the source network device may send a handover request to the network device to which the target cell belongs (ie, the target network device).
  • the handover request may include capability information of the terminal device, and the capability information of the terminal device includes that the terminal device supports DAPS handover under carrier aggregation.
  • the target network device determines target side wireless parameter configuration information based on the handover request, load information of the target network device, and service quality requirements of one or more DRBs.
  • the target network device after the target network device receives the handover request sent by the source network device, the target network device can configure its preferred network device according to the load information of the cell under its jurisdiction and the quality of service requirements of one or more DRBs configured for DAPS handover. Wireless parameter configuration information on the target side. Based on this possible implementation manner, it is beneficial to improve the rationality and reliability of the wireless parameters configured by the target network device for the terminal device.
  • the target network device sends a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the target side wireless parameter configuration information.
  • the source network device sends the target side wireless parameter configuration information to the terminal device.
  • the terminal device performs DAPS handover based on the target side radio parameter configuration information and configuration information of one or more DRBs, where the configuration information indicates that at least one DRB is configured for DAPS handover.
  • the terminal device receives the target side wireless parameter configuration information sent by the source network device, and when at least one DRB configuration is determined to be DAPS switching according to the configuration information of one or more DRBs, the terminal device configures the target side wireless parameters based on the target side wireless parameter configuration information. Information to perform DAPS handover. Wherein, at least one of the source network device and the target network device configures carrier aggregation for the terminal device.
  • the terminal device after receiving the target-side wireless parameter configuration information sent by the source network device, the terminal device further includes: updating the source-side wireless parameter configuration information based on the target-side wireless parameter configuration information and the capability information of the terminal device. Make adjustments.
  • the target network device After the target network device receives the handover request, it can configure its preferred wireless parameter configuration information on the target side, and then return a handover request confirmation to the source network device.
  • the source network device notifies the terminal device of the wireless parameter configuration information on the target side through RRC reconfiguration signaling.
  • the terminal device finds that the wireless parameters configured by the source network device and the target network device exceed the processing capability of the terminal device, the terminal device gives priority to ensuring the target-side wireless parameter configuration information configured by the target network device, and adjusts the source-side wireless parameters configured by the source network device Configuration information, such as reducing the number of serving cells on the source side.
  • the source network device has at least one serving cell; if the terminal device finds that there is no remaining capacity to maintain a serving cell on the source side after first ensuring the target side wireless parameter configuration information configured by the target network device, then The terminal device releases all serving cells on the source side, and the terminal device performs non-DAPS handover.
  • the source side radio parameter configuration information of the terminal device on the source network device is the bandwidth combination of the primary cell and the secondary cell (PCell+Scell1) identified as 1, that is, two carriers.
  • the wireless parameter configuration information of the terminal device on the target side of the target network device is 3 carriers.
  • the bandwidth combination of DAPS handover that the terminal device can support is 1+3 bandwidth combination, that is, the source network device and the target network device are 1 carrier and 3 carriers respectively.
  • the terminal device determines that the source network device can only maintain one serving cell to meet the target side wireless parameter configuration information configured by the target network device. Therefore, the terminal device actively releases SCell1, that is, it no longer receives downlink signaling/data from SCell1, and does not send information to SCell1. Send uplink data.
  • the method further includes: if the wireless parameter configuration of the terminal device on the source network device side is completely released, the terminal device interrupts communication with the source network device.
  • the terminal device performs switching according to the normal switching process, that is, the terminal device interrupts the communication with the source network device, No DAPS switching is implemented.
  • the source network device sends a handover request to the target network device, the handover request includes DAPS handover capability information of the terminal device under carrier aggregation, and the target network device determines that the terminal device is in the target network device based on the handover request.
  • the second wireless parameter configuration information and send the second wireless parameter configuration information to the terminal device through the source network device, and the terminal device performs DAPS handover based on the second wireless parameter configuration information, where the second wireless parameter configuration indicates at least A data radio bearer is configured for DAPS handover. Therefore, based on the method described in FIG. 5 , the terminal device can implement DAPS handover in the carrier aggregation state.
  • FIG. 6 is a flowchart of a data transmission method provided by an embodiment of the present application, and the data transmission method includes steps 601 to 602 .
  • the execution subject of the method shown in FIG. 6 may be a terminal device (for example, refer to FIG. 2 ), and the execution subject may also be a chip in the terminal device.
  • the execution subject of the method shown in FIG. 6 takes a terminal device as an example. The method includes but not limited to the following steps.
  • the terminal device if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured so that the DRB for DAPS handover allows data transmission with the source network device through the secondary cell of the source network device , then when a radio link failure or beam failure occurs in the primary cell of the source network device, the terminal device continues to perform data transmission with the source network device through the secondary cell.
  • the terminal device during the DAPS handover process of the terminal device, the terminal device continues to maintain the connection with the source network device, and at the same time accesses the target primary cell according to the wireless parameters configured in the target cell.
  • the terminal device performs a random access procedure on the target network device, the terminal device continues to detect the radio link of the source primary cell on the side of the source network device. If the source network device corresponding to the terminal device includes multiple serving cells, and the DRB configured for DAPS handover on the terminal device allows data transmission with the source network device through the secondary cell of the source network device, then when the primary cell of the source network device has wireless When the link fails or the beam fails, the terminal device can continue to perform data transmission with the source network device through the secondary cell. Based on this approach, the terminal device is configured as a DRB for DAPS handover, which can reduce handover interruption delay during the DAPS handover process.
  • the terminal device can determine from the configuration sent by the source network device whether the DRB configured for DAPS handover can perform data transmission through the secondary cell.
  • the source network device may configure the logical channel corresponding to the DRB to transmit through the secondary cell through RRC signaling.
  • the logical channel corresponding to the DRB is transmitted through the set subcarrier spacing.
  • the DRB can only transmit through the subcarrier spacing of 30kHz, while the primary cell uses the subcarrier spacing of 15kHz, and the secondary cell uses the subcarrier spacing of 30kHz. If the subcarrier spacing is equal to the subcarrier interval, it is indirectly known that the DRB performs data transmission through the secondary cell.
  • the first wireless parameter configuration information of the terminal device on the source network device combines the bandwidth combination of the primary cell and the secondary cell (PCell+Scell1) identified as 1.
  • the terminal device communicates with the source network device through the primary cell Network equipment for data transmission.
  • the DRB1 established by the terminal device is configured as DAPS handover, and allows data transmission with the source network device through the secondary cell of the source network device.
  • the terminal device finds that the primary cell (PCell) of the source network device has a radio link failure, the terminal device can continue data transmission with the source network device through the secondary cell (Scell1) of the source network device.
  • the method further includes: during the data transmission process between the terminal device and the source network device through the secondary cell, if beam failure occurs in the secondary cell (that is, beam failure occurs in all secondary cells) , the terminal device interrupts the communication with the source network device. That is to say, if beam failures occur in all secondary cells, the terminal device performs handover according to a normal handover procedure, that is, communication with the terminal device is interrupted, and DAPS handover is not performed.
  • the method further includes: if the DRB configured by the terminal device for DAPS handover does not allow data transmission through the primary cell of the source network device, after receiving the handover command, the terminal device stops transmitting data through the primary cell.
  • the cell performs data transmission with the source network device, or the terminal device preferentially performs data transmission with the source network device through the secondary cell. That is to say, the terminal device does not need to maintain the data transmission between the primary cell and the source network device, or the terminal device gives priority to ensuring the data transmission between the secondary cell and the source network device, such as preferentially guaranteeing the transmission power for sending data to the secondary cell.
  • the method further includes: if the DRB configured by the terminal device for DAPS handover does not allow data transmission through the secondary cell of the source network device, after receiving the handover command, the terminal device stops transmitting data through the secondary cell.
  • the cell performs data transmission with the source network device, or the terminal device preferentially performs data transmission with the source network device through the primary cell.
  • the terminal device does not need to maintain the data transmission between the secondary cell and the source network device, or the terminal device gives priority to ensuring the data transmission between the primary cell and the source network device, such as preferentially guaranteeing the transmission power for sending data to the primary cell.
  • the source network device receives data sent by the terminal device.
  • the terminal device when the terminal device is performing DAPS handover, if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured as a DRB for DAPS handover, the secondary cell of the source network device and the When the source network device performs data transmission, when a radio link failure or a beam failure occurs in the primary cell of the source network device, the terminal device continues to perform data transmission with the source network device through the secondary cell. Therefore, based on the method described in FIG. 6 , configuring the terminal device as a DRB for DAPS handover can reduce handover interruption delay during the DAPS handover process.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a source network device, or a device in the source network device, or a device that can be matched with the source network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to send a handover request to the target network device, where the handover request includes capability information of the terminal device and configuration information of one or more DRBs, where the capability information includes that the terminal device supports DAPS handover under carrier aggregation, the configuration The information indicates that at least one DRB is configured for DAPS handover;
  • the communication unit 702 is further configured to receive a handover request acknowledgment sent by the target network device, where the handover request acknowledgment includes the target side wireless parameter configuration information of the terminal device;
  • the communication unit 702 is further configured to send the target side wireless parameter configuration information to the terminal device.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to receive a handover request sent by the source network device, the handover request includes capability information of the terminal device and configuration information of one or more DRBs, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, the configuration The information indicates that at least one DRB is configured for DAPS handover;
  • a processing unit 701 configured to determine target side wireless parameter configuration information of the terminal device based on the handover request;
  • the communication unit 702 is further configured to send a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to access the source network device, and obtain source-side wireless parameter configuration information configured by the source network device for the terminal device;
  • a communication unit 702 configured to receive the target side wireless parameter configuration information of the terminal device sent by the source network device;
  • the processing unit 701 is further configured to perform DAPS handover based on the target side wireless parameter configuration information.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a source network device, or a device in the source network device, or a device that can be matched with the source network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to send a handover request to the target network device, where the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device, where the capability information includes the terminal device.
  • the device supports DAPS switching under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS switching;
  • the communication unit 702 is further configured to receive a handover request acknowledgment sent by the target network device, where the handover request acknowledgment includes the target side wireless parameter configuration information of the terminal device;
  • the communication unit 702 is further configured to send the target side wireless parameter configuration information to the terminal device.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to receive a handover request sent by the source network device, where the handover request includes capability information of the terminal device, configuration information of one or more DRBs, and source-side wireless parameter configuration information of the terminal device, where the capability information includes terminal
  • the device supports DAPS switching under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS switching;
  • a processing unit 701 configured to determine target side wireless parameter configuration information of the terminal device based on the handover request;
  • the communication unit 702 is further configured to send a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to access the source network device, and obtain source-side wireless parameter configuration information configured by the source network device for the terminal device;
  • a communication unit 702 configured to receive the target side wireless parameter configuration information of the terminal device sent by the source network device;
  • the processing unit 701 is further configured to perform DAPS handover based on the target-side wireless parameter configuration information and the source-side wireless parameter configuration information.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a source network device, or a device in the source network device, or a device that can be matched with the source network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to send a handover request to the target network device, where the handover request includes capability information of the terminal device, and the capability information includes that the terminal device supports DAPS handover under carrier aggregation;
  • the communication unit 702 is further configured to receive a handover request acknowledgment sent by the target network device, where the handover request acknowledgment includes the target side wireless parameter configuration information of the terminal device;
  • the communication unit 702 is further configured to send the target side wireless parameter configuration information to the terminal device.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to receive a handover request sent by the source network device, where the handover request includes capability information of the terminal device, and the capability information includes that the terminal device supports DAPS handover under carrier aggregation;
  • a processing unit 701 configured to determine the wireless parameter configuration information of the target side based on the handover request, the load information of the target network device, and the service quality requirements of one or more DRBs;
  • the communication unit 702 is further configured to send a handover request acknowledgment to the source network device, where the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to access the source network device, and obtain source-side wireless parameter configuration information configured by the source network device for the terminal device;
  • a communication unit 702 configured to receive the target side wireless parameter configuration information of the terminal device sent by the source network device;
  • the processing unit 701 is further configured to perform DAPS handover based on the target side radio parameter configuration information and configuration information of one or more DRBs.
  • FIG. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the device may be a target network device, or a device in the target network device, or a device that can be matched with the target network device.
  • the communication device 70 shown in FIG. 7 may include a processing unit 701 and a communication unit 702 . Wherein, the processing unit 701 is configured to perform data processing.
  • the communication unit 702 is integrated with a receiving unit and a sending unit.
  • the communication unit 702 may also be referred to as a transceiver unit. Alternatively, the communication unit 702 may also be split into a receiving unit and a sending unit.
  • the processing unit 701 and the communication unit 702 below are the same, and will not be described in detail below. in:
  • the communication unit 702 is configured to perform a DAPS handover process, if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured as a DRB for DAPS handover allowing the source network device to communicate with the source network through the secondary cell of the source network device
  • the device performs data transmission, when the primary cell of the source network device has a radio link failure or a beam failure, data transmission with the source network device continues through the secondary cell.
  • the aforementioned communication device may be, for example, a chip or a chip module.
  • each module included in the product may be a software module or a hardware module, or may be partly a software module and partly a hardware module.
  • each module contained therein may be realized by hardware such as a circuit, or at least some modules may be realized by a software program, and the software program runs inside the chip.
  • the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module contained in it can be realized by means of hardware such as circuits , different modules can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules can be implemented in the form of software programs that run on the integrated processing of the chip module device, the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in the terminal, each module contained in it can be realized by means of hardware such as circuits, and different modules can be Located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least some of the modules can be implemented in the form of a software program, which runs on the processor integrated in the terminal, and the rest (if any) Some modules can be realized by hardware such as circuits.
  • the apparatus may be a source network device or an apparatus for a source network device.
  • the apparatus for the source network device may be a chip system or a chip in the source network device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 80 is configured to implement the functions of the target network device in FIGS. 3 to 5 above.
  • the apparatus may be a target network device or an apparatus for a target network device.
  • the apparatus for the target network device may be a system-on-a-chip or a chip within the target network device. Wherein, the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 80 is configured to realize the functions of the terminal equipment in the foregoing FIGS. 3 to 6 .
  • the device may be a terminal device or a device for a terminal device.
  • the apparatus for a terminal device may be a chip system or a chip in the terminal device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 80 includes at least one processor 820, configured to implement the data processing function of the terminal device in the method provided by the embodiment of the present application.
  • the communication device 80 may further include a communication interface 810, configured to implement the transceiving operation of the terminal device in the method provided by the embodiment of the present application.
  • the communication interface may be a transceiver, a circuit, a bus, a module or other types of communication interfaces for communicating with other devices through a transmission medium.
  • the communication interface 810 is used by means in the communication means 80 to communicate with other devices.
  • the processor 820 uses the communication interface 810 to send and receive data, and is used to implement the method described in FIG. 2 of the above method embodiment.
  • Communications device 80 may also include at least one memory 830 for storing program instructions and/or data.
  • the memory 830 is coupled to the processor 820 .
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 820 may cooperate with memory 830 .
  • Processor 820 may execute program instructions stored in memory 830 . At least one of the at least one memory may be included in the processor.
  • the processor 820 can read the software program in the memory 830, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 820 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit (not shown in the figure), and the radio frequency circuit performs radio frequency processing on the baseband signal, and passes the radio frequency signal through the antenna in the form of electromagnetic waves Send out.
  • the radio frequency circuit When data is sent to the communication device 80, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 820, and the processor 820 converts the baseband signal into data and converts the data to process.
  • the radio frequency circuit and antenna can be set independently from the processor 820 for baseband processing. layout.
  • a specific connection medium among the communication interface 810, the processor 820, and the memory 830 is not limited.
  • the memory 830, the processor 820, and the communication interface 810 are connected through the bus 840.
  • the bus is represented by a thick line in FIG. 8, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in Fig. 8, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute the methods, operations and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The operations of the method disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the communication device can execute the relevant steps of the terminal device or the access network device in the foregoing method embodiments, and for details, refer to the implementation manners provided by the foregoing steps, and details are not repeated here.
  • each module contained therein may be realized by hardware such as a circuit, and different modules may be located in the same component (such as a chip, a circuit module, etc.) or different components in the terminal.
  • at least part of the modules may be implemented in the form of a software program, the software program runs on a processor integrated in the terminal, and the remaining (if any) modules may be implemented in hardware such as circuits.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor is configured to perform the following operations: send a handover request to the target network device, where the handover request includes capability information of the terminal device and one or more Configuration information of a DRB, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; receiving a handover request acknowledgment sent by the target network device, the handover request acknowledgment includes the Target-side wireless parameter configuration information of the terminal device; sending the target-side wireless parameter configuration information to the terminal device.
  • the processor is configured to perform the following operations: send a handover request to the target network device, where the handover request includes capability information of the terminal device and one or more Configuration information of a DRB, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; receiving a handover request acknowledgment
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor is configured to perform the following operations: receive a handover request sent by a source network device, where the handover request includes capability information of the terminal device and one or Configuration information of multiple DRBs, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; determine the target side wireless parameter configuration information of the terminal device based on the handover request; send the source The network device sends a handover request acknowledgment, where the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface.
  • the processor is configured to perform the following operations: access the source network device, and obtain the source-side wireless network configured by the source network device for the terminal device. Parameter configuration information; receiving the target side wireless parameter configuration information of the terminal device sent by the source network device; performing DAPS switching based on the target side wireless parameter configuration information.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor is configured to perform the following operations: send a handover request to the target network device, where the handover request includes capability information of the terminal device, one or more The configuration information of each DRB and the source-side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; receiving the target network device sends A handover request acknowledgment, the handover request acknowledgment includes the target side wireless parameter configuration information of the terminal device; and sends the target side wireless parameter configuration information to the terminal device.
  • the processor is configured to perform the following operations: send a handover request to the target network device, where the handover request includes capability information of the terminal device, one or more The configuration information of each DRB and the source-side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor is configured to perform the following operations: receive a handover request sent by a source network device, where the handover request includes capability information of the terminal device, one or Configuration information of multiple DRBs and source-side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; determine the terminal based on the handover request The wireless parameter configuration information of the target side of the device; sending a handover request confirmation to the source network device, and the handover request confirmation includes the wireless parameter configuration information of the target side.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface.
  • the processor is configured to perform the following operations: access the source network device, and obtain the source-side wireless network configured by the source network device for the terminal device. Parameter configuration information; receiving the target side wireless parameter configuration information of the terminal device sent by the source network device; performing DAPS switching based on the target side wireless parameter configuration information and the source side wireless parameter configuration information.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, the processor is configured to perform the following operations: send a handover request to the target network device, the handover request includes capability information of the terminal device, and the capability information Including that the terminal device supports DAPS handover under carrier aggregation; receiving a handover request confirmation sent by the target network device, the handover request confirmation including the target side wireless parameter configuration information of the terminal device; sending the target side wireless parameter configuration to the terminal device information.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, where the processor is configured to perform the following operations: receive a handover request sent by a source network device, where the handover request includes capability information of the terminal device, and the capability The information includes that the terminal device supports DAPS handover under carrier aggregation; determine the wireless parameter configuration information of the target side based on the handover request, the load information of the target network device, and the service quality requirements of one or more DRBs; send the handover request to the source network device Acknowledgment, the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface.
  • the processor is configured to perform the following operations: access the source network device, and obtain the source-side wireless network configured by the source network device for the terminal device. Parameter configuration information; receiving the target side wireless parameter configuration information of the terminal device sent by the source network device; performing DAPS switching based on the target side wireless parameter configuration information and configuration information of one or more DRBs.
  • the embodiment of the present application also provides a chip, including a processor and a communication interface, the processor is configured to perform the following operations: in the process of performing DAPS handover, if the source network device corresponding to the terminal device includes multiple serving cells , and the terminal device is configured so that the DRB of the DAPS handover allows data transmission with the source network device through the secondary cell of the source network device, then when the primary cell of the source network device has a radio link failure or a beam failure, the data transmission through the secondary cell Data transmission continues with the source network device.
  • the above-mentioned chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the aforementioned at least one first memory and the aforementioned at least one processor are interconnected Instructions are stored in the memory; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned second memory stores data that needs to be stored in the aforementioned method embodiments.
  • each module contained therein may be implemented by means of hardware such as circuits, or at least some of the modules may be implemented by means of software programs, which run on the internal integrated components of the chip.
  • the processor and the remaining (if any) modules can be realized by hardware such as circuits.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment; the storage module 903 is used to store data and instructions; the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices; the chip module 904 is used to: trigger the communication module 901 to send a switching request to the target network device, and the switching request includes the capability information of the terminal device and the configuration of one or more DRBs information, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; the trigger communication module 901 receives the handover request confirmation sent by the target network device, and the handover request confirmation includes The target side wireless parameter configuration information of the terminal device; triggering the communication module 901 to send the target side wireless parameter configuration information to the terminal device.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to receive a switch request sent by the source network device, the switch request includes capability information of the terminal device and one or more DRB Configuration information, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; determine the target side wireless parameter configuration information of the terminal device based on the handover request; trigger the communication module 901 to The source network device sends a handover request acknowledgment, where the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to access the source network device, and obtain the source side wireless parameter configuration information configured by the source network device for the terminal device;
  • the triggering communication module 901 receives the target side wireless parameter configuration information of the terminal device sent by the source network device; performs DAPS handover based on the target side wireless parameter configuration information.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment; the storage module 903 is used to store data and instructions; the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices; the chip module 904 is used to: trigger the communication module 901 to send a switching request to the target network device, and the switching request includes capability information of the terminal device and configuration of one or more DRBs information and source side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS handover under carrier aggregation, and the configuration information indicates that at least one DRB is configured for DAPS handover; the communication module 901 is triggered to receive the target network device A handover request acknowledgment is sent, and the handover request acknowledgment includes the target side wireless parameter configuration information of the terminal device; triggering the communication module 901 to send the target side wireless parameter configuration information to the terminal device.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to receive a switch request sent by the source network device, the switch request includes capability information of the terminal device, one or more DRB Configuration information and source-side wireless parameter configuration information of the terminal device, the capability information includes that the terminal device supports DAPS switching under carrier aggregation, the configuration information indicates that at least one DRB is configured for DAPS switching; determine the target side of the terminal device based on the switching request Wireless parameter configuration information; triggering the communication module 901 to send a handover request acknowledgment to the source network device, the handover request acknowledgment including the target side wireless parameter configuration information.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to access the source network device, and obtain the source side wireless parameter configuration information configured by the source network device for the terminal device;
  • the triggering communication module 901 receives the target side wireless parameter configuration information of the terminal device sent by the source network device; performs DAPS switching based on the target side wireless parameter configuration information and the source side wireless parameter configuration information.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to send a switch request to the target network device, the switch request includes capability information of the terminal device, and the capability information includes the terminal device Support DAPS handover under carrier aggregation;
  • the trigger communication module 901 receives the handover request confirmation sent by the target network device, and the handover request confirmation includes the target side wireless parameter configuration information of the terminal device;
  • the trigger communication module 901 sends to the terminal device The wireless parameter configuration information of the target side.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to receive a switch request sent by the source network device, the switch request includes capability information of the terminal device, and the capability information includes the terminal device Support DAPS handover under carrier aggregation; determine the wireless parameter configuration information of the target side based on the handover request, the load information of the target network device, and the service quality requirements of one or more DRBs; trigger the communication module 901 to send the handover to the source network device A request acknowledgment, the handover request acknowledgment includes the wireless parameter configuration information of the target side.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment;
  • the storage module 903 is used to store data and instructions;
  • the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices;
  • the chip module 904 is used to: trigger the communication module 901 to access the source network device, and obtain the source side wireless parameter configuration information configured by the source network device for the terminal device;
  • the triggering communication module 901 receives the target side wireless parameter configuration information of the terminal device sent by the source network device; performs DAPS switching based on the target side wireless parameter configuration information and configuration information of one or more DRBs.
  • FIG. 9 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 90 can execute the relevant steps of the terminal device in the aforementioned method embodiments, and the module device 90 includes: a communication module 901 , a power supply module 902 , a storage module 903 and a chip module 904 .
  • the power supply module 902 is used to provide electric energy for the module equipment; the storage module 903 is used to store data and instructions; the communication module 901 is used for internal communication of the module equipment, or for The module device communicates with external devices; the chip module 904 is used for: in the process of performing DAPS switching, if the source network device corresponding to the terminal device includes multiple serving cells, and the terminal device is configured for DAPS switching
  • the DRB of the source network device allows data transmission with the source network device through the secondary cell, and when the radio link failure or beam failure occurs in the primary cell of the source network device, the communication module 901 is triggered to communicate with the source network device through the secondary cell. The device continues the data transfer.
  • each module contained therein may be realized by hardware such as a circuit, and different modules may be located in the same component of the chip module (such as a chip, a circuit module, etc.) or Among the different components, or at least some of the modules can be realized by means of a software program, the software program runs on the processor integrated in the chip module, and the remaining (if any) parts of the modules can be realized by means of hardware such as circuits.
  • the embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instruction is run on a processor, the method flow of the above-mentioned method embodiment is realized.
  • the embodiment of the present application further provides a computer program product.
  • the computer program product is run on a processor, the method flow of the above method embodiment is realized.

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Abstract

本申请公开了一种小区切换方法及通信装置,应用于源网络设备,该方法包括:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。采用本申请所提出的方法,终端设备能够在载波聚合状态下实现DAPS切换。

Description

一种小区切换方法及通信装置 技术领域
本发明涉及通信领域,尤其涉及一种小区切换方法及通信装置。
背景技术
无线通信中引入了一种双激活栈(Dual Active Protocol Stack,DAPS)切换,即在切换过程中终端设备同时保持与源网络设备以及目标网络设备的通信,终端设备在与目标小区开展正常通信之后才释放与源网络设备的连接,从而减少切换过程中的中断时延。
目前,在DAPS切换过程中,终端设备连接的源网络设备和目标网络设备均只有一个服务小区。如果源网络设备在切换之前处于载波聚合(Carrier Aggregation,CA)的状态下,即源网络设备包括至少两个服务小区,分别为主服务小区(PCell)和一个或多个辅服务小区(SCell),源网络设备在发送DAPS切换命令之前需要释放辅服务小区。这样的方式导致终端设备在DAPS切换过程中无法维持载波聚合状态,从而对传输速率产生不利的影响,因此如何在载波聚合状态下实现DAPS切换是亟待解决的问题。
发明内容
本申请提供一种小区切换方法及通信装置,终端设备能够在载波聚合状态下实现DAPS切换。
第一方面,本申请提供一种小区切换方法,应用于源网络设备,该方法包括:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
基于第一方面描述的方法,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;然 后向该终端设备发送该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能实现的方式,能够保证目标网络设备为终端设备配置的无线参数的合理性。
在一种可能的实现方式中,该向目标网络设备发送切换请求之前,该方法还包括:向终端设备发送用于减少源网络设备配置的重配置信令。基于该可能的实现方式,有利于目标网络设备能够充分利用终端设备未使用的处理能力,合理配置在目标网络设备侧的带宽组合。
在一种可能的实现方式中,该向目标网络设备发送切换请求之前,该方法还包括:向终端设备发送获取带宽组合的指示信息,该指示信息用于请求终端设备上报该终端设备支持的在目标网络设备侧的带宽组合信息;接收终端设备发送的该终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能的实现方式,有利于提高目标网络设备为终端设备配置的无线参数的合理性和可靠性,同时该方法可以有效减少能力比特数的开销。
在一种可能的实现方式中,该方法还包括:若该重配置信令指示释放所有的服务小区,则在向终端设备发送该目标侧无线参数配置信息之后,中断与终端设备的通信。
第二方面,本申请提供一种小区切换方法,应用于目标网络设备,该方法包括:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
基于第二方面描述的方法,目标网络设备接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;然后向源网络设备发送切换请求确认,该切 换请求确认包括该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能实现的方式,能够保证目标网络设备为终端设备配置的无线参数的合理性。
第三方面,本申请提供一种小区切换方法,应用于终端设备,该方法包括:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息执行DAPS切换。
基于第三方面描述的方法,终端设备接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;然后基于该目标侧无线参数配置信息执行DAPS切换。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该接收源网络设备发送的该终端设备的目标侧无线参数配置信息之前,该方法还包括:接收源网络设备发送的用于减少源网络设备配置的重配置信令;基于该重配置信令对该源侧无线参数配置信息进行调整。
在一种可能的实现方式中,该接收该源网络设备发送的该终端设备的目标侧无线参数配置信息之前,该方法还包括:接收源网络设备发送的获取带宽组合的指示信息,该指示信息用于请求终端设备上报该终端设备支持的在目标网络设备侧的带宽组合信息;基于该源侧无线参数配置信息和该终端设备的能力信息确定该终端设备支持的在目标网络设备侧的带宽组合信息;向源网络设备发送该终端设备支持的在目标网络设备侧的带宽组合信息。
在一种可能的实现方式中,该方法还包括:若该重配置信令指示释放所有的服务小区,则在接收到该源网络设备发送的该目标侧无线参数配置信息之后,中断与源网络设备的通信。
第四方面,本申请提供一种小区切换方法,应用于源网络设备,该方法包括:向目标 网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
基于第四方面描述的方法,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;然后向该终端设备发送该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能实现的方式,能够保证目标网络设备为终端设备配置的无线参数的合理性。
在一种可能的实现方式中,该切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息。
在一种可能的实现方式中,该方法还包括:基于该第一指示信息释放一个或多个服务小区。
在一种可能的实现方式中,该接收目标网络设备发送的切换请求确认之后,该方法还包括:基于该第一指示信息向终端设备发送用于减少源网络设备配置的重配置信令。
第五方面,本申请提供一种小区切换方法,应用于目标网络设备,该方法包括:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括 该目标侧无线参数配置信息。
基于第五方面描述的方法,目标网络设备接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;然后向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能实现的方式,能够保证目标网络设备为终端设备配置的无线参数的合理性。
在一种可能的实现方式中,该基于该切换请求确定终端设备的目标侧无线参数配置信息,包括:基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息。
在一种可能的实现方式中,该切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息,该方法还包括:基于该目标侧无线参数配置信息、该源侧无线参数配置信息和该终端设备支持的DAPS切换的带宽组合信息确定该第一指示信息。
第六方面,本申请提供一种小区切换方法,应用于终端设备,该方法包括:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。
基于第六方面描述的方法,终端设备接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;然后基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该基于该目标侧无线参数配置信息和该源侧无线参数配置 信息执行DAPS切换之前,还包括:接收源网络设备发送的用于减少源网络设备配置的重配置信令;基于该重配置信令对该源侧无线参数配置信息进行调整。
在一种可能的实现方式中,该方法还包括:若该重配置信令指示释放所有的服务小区,则在接收到源网络设备发送的该目标侧无线参数配置信息之后,中断与源网络设备的通信。
第七方面,本申请提供一种小区切换方法,应用于源网络设备,该方法包括:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
基于第七方面描述的方法,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;然后向该终端设备发送该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
第八方面,本申请提供一种小区切换方法,应用于目标网络设备,该方法包括:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
基于第八方面描述的方法,目标网络设备接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息;然后向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
第九方面,本申请提供一种小区切换方法,应用于终端设备,该方法包括:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和一个 或多个DRB的配置信息执行DAPS切换。
基于第九方面描述的方法,终端设备接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;然后基于该目标侧无线参数配置信息和一个或多个DRB的配置信息执行DAPS切换。因此,通过本方法,终端设备能够在载波聚合状态下实现DAPS切换。
在一种可能的实现方式中,该接收源网络设备发送的该终端设备的目标侧无线参数配置信息之后,还包括:基于该目标侧无线参数配置信息和该终端设备的能力信息对该源侧无线参数配置信息进行调整。基于该可能的实现方式,有利于目标网络设备能够充分利用终端设备未使用的处理能力,合理配置在目标网络设备侧的带宽组合。
在一种可能的实现方式中,该方法还包括:若完全释放终端设备在源网络设备侧的无线参数配置,则中断与源网络设备的通信。
第十方面,本申请提供一种数据传输方法,应用于终端设备,该方法包括:在执行DAPS切换过程中,若该终端设备对应的源网络设备包括多个服务小区,且该终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,通过该辅小区与该源网络设备继续进行数据传输。
基于第十方面描述的方法,在执行DAPS切换过程中,若终端设备对应的源网络设备包括多个服务小区,且终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,当源网络设备的主小区发生无线链路失败或波束失败时,终端设备通过该辅小区与该源网络设备继续进行数据传输。因此,通过本方法,终端设备配置为DAPS切换的DRB能够在DAPS切换过程中减少切换中断的时延。
在一种可能的实现方式中,该方法还包括:在终端设备通过该辅小区与该源网络设备进行数据传输的过程中,若该辅小区发生波束失败,则中断与源网络设备的通信。
在一种可能的实现方式中,该方法还包括:若终端设备配置为DAPS切换的DRB不允许通过源网络设备的主小区进行数据传输,则在收到切换命令之后,停止通过该主小区与该源网络设备进行数据传输,或优先通过该辅小区与该源网络设备进行数据传输。基于该可能的实现方式,能够减少终端设备处理的复杂度,降低终端设备的传输功率,同时满足 配置了DAPS切换的DRB在切换过程中的中断时延需求。
在一种可能的实现方式中,该方法还包括:若终端设备配置为DAPS切换的DRB不允许通过源网络设备的辅小区进行数据传输,则在收到切换命令之后,停止通过该辅小区与该源网络设备进行数据传输,或优先通过该主小区与该源网络设备进行数据传输。基于该可能的实现方式,能够减少终端设备处理的复杂度,降低终端设备的传输功率,同时满足配置了DAPS切换的DRB在切换过程中的中断时延需求。
第十一方面,本申请提供了一种通信装置,该通信装置用于实现上述第一方面至第十方面及其任一种可能的实现方式中的方法的单元。
第十二方面,本申请提供了一种通信装置,所述通信装置包括处理器,所述处理器用于执行第一方面至第十方面及其任一种可能的实现方式中的方法。
第十三方面,本申请提供了一种通信装置,所述通信装置包括处理器和存储器,所述存储器用于存储计算机执行指令;所述处理器用于从所述存储器调用所述程序代码执行第一方面至第十方面及其任一种可能的实现方式中的方法。
第十四方面,本申请提供了一种通信装置,所述通信装置包括处理器和收发器,所述收发器,用于接收信号或者发送信号;所述处理器,用于执行第一方面至第十方面及其任一种可能的实现方式中的方法。
第十五方面,本申请提供了一种通信装置,所述通信装置包括处理器、存储器和收发器,所述收发器,用于接收信号或者发送信号;所述存储器,用于存储程序代码;所述处理器,用于从所述存储器调用所述程序代码执行如第一方面至第十方面及其任一种可能的实现方式中的方法。
第十六方面,本申请提供了一种芯片,该芯片包括处理器和通信接口,该处理器被配置用于执行如第一方面至第十方面及其任一种可能的实现方式中的方法。
第十七方面,本申请提供了一种模组设备,其特征在于,该模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:该电源模组用于为该模组设备提供电能;该存储模组用于存储数据和指令;该通信模组用于进行模组设备内部通信,或者用于该模组设备与外部设备进行通信;该芯片模组用于执行如第一方面至第十方面及其任一种可能的实现方式中的方法。
第十八方面,本申请提供了一种计算机可读存储介质,该计算机存储介质中存储有计算机可读指令,当该计算机可读指令在通信装置上运行时,使得该通信装置执行上述第一方面至第十方面及其任一种可能的实现方式中的方法。
第十九方面,本申请提供一种计算机程序或计算机程序产品,包括代码或指令,当代码或指令在计算机上运行时,使得计算机执行如第一方面至第十方面中任意一项的方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种DAPS切换中终端设备处理过程的示意图;
图2是本申请实施例提供的一种网络架构的示意图;
图3是本申请实施例提供的一种小区切换方法的流程图;
图4是本申请实施例提供的另一种小区切换方法的流程图;
图5是本申请实施例提供的另一种小区切换方法的流程图;
图6是本申请实施例提供的一种数据传输方法的流程图;
图7是本申请实施例提供的一种通信装置的结构示意图;
图8是本申请实施例提供的另一种通信装置的结构示意图;
图9是本申请实施例提供的一种模组设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本申请以下实施例中所使用的术语只是为了描述特定实施例的目的,而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样,单数表达形式 “一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括复数表达形式,除非其上下文中明确地有相反指示。还应当理解,本申请中使用的术语“和/或”是指并包含一个或多个所列出项目的任何或所有可能组合。
需要说明的是,本申请的说明书和权利要求书中及上述附图中的属于“第一”、“第二”、“第三”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述以外的顺序实施。此外,术语“包括”及其任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或服务器不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
首先,对本申请实施例涉及的部分名词进行解释,以便于本领域技术人员的理解。
1、终端设备:
本申请实施例的终端设备是一种具有无线通信功能的设备,可以称为终端(terminal)、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)、接入终端设备、车载终端设备、工业控制终端设备、UE单元、UE站、移动站、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备可以是固定的或者移动的。需要说明的是,终端设备可以支持至少一种无线通信技术,例如LTE、新空口(new radio,NR)等。例如,终端设备可以是手机(mobile phone)、平板电脑(pad)、台式机、笔记本电脑、一体机、车载终端、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(self driving)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、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备、未来移动通信网络中的终端设备或者未来演进的公共移动陆地网络(public land mobile network,PLMN)中的终端设备等。在本申 请的一些实施例中,终端设备还可以是具有收发功能的装置,例如芯片系统。其中,芯片系统可以包括芯片,还可以包括其它分立器件,本申请实施例对此并不限定。
2、网络设备:
本申请实施例中网络设备是一种为终端设备提供无线通信功能的设备,也可称之为无线接入网(radio access network,RAN)设备、或接入网网元等。其中,网络设备可以支持至少一种无线通信技术,例如LTE、NR等。示例的,网络设备包括但不限于:第五代移动通信系统(5th-generation,5G)中的下一代基站(generation nodeB,gNB)、演进型节点B(evolved node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved node B、或home node B,HNB)、基带单元(baseband unit,BBU)、收发点(transmitting and receiving point,TRP)、发射点(transmitting point,TP)、移动交换中心等。网络设备还可以是云无线网络络(cloud radio access network,CRAN)场景下的无线控制器、集中单元(centralized unit,CU)、和/或分布单元(distributed unit,DU),或者网络设备可以为中继站、接入点、车载设备、终端设备、可穿戴设备以及未来移动通信中的网络设备或者未来演进的PLMN中的网络设备等。在一些实施例中,网络设备还可以为具有为终端设备提供无线通信功能的装置,例如芯片系统。示例的,芯片系统可以包括芯片,还可以包括其它分立器件。在一些实施例中,网络设备还可以与互联网协议(Internet Protocol,IP)网络进行通信,例如因特网(internet),私有的IP网,或其他数据网等。
需要说明的是,根据终端设备进行网络切换(或称为小区切换)的过程,还可以将网络设备区分为源网络设备和目标网络设备。源网络设备为终端设备在切换前连接的网络设备,目标网络设备为终端设备进行网络切换后连接的网络设备。
3、双激活栈切换:
双激活栈(Dual Active Protocol Stack,DAPS)切换表示在终端设备接收到无线资源控制(Radio Resource Control,RRC)消息(切换命令)进行切换后,保持源网络设备的连接,直到成功随机接入目标网络设备后,由目标网络设备通知终端设备释放与源网络设备的连接的切换过程。其中,DAPS切换的下行数据传输过程和上行数据传输过程如下:
(1)DAPS切换的下行数据传输:对于一个应用DAPS切换的数据无线承载(Data Radio  Bearer,DRB),源网络设备需要统一为分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)数据包分配PDCP序列号(Sequence Number,SN),然后将部分数据包以及对应的SN发送给目标网络设备,然后由目标网络设备在切换过程中将下行数据发送给终端设备,由目标网络设备发送的下行数据采用目标侧的安全算法和头压缩算法;源网络设备将另外一部分数据包执行源侧的安全算法和头压缩算法之后由源网络设备发送给终端设备。终端设备收到两侧发送的数据包,执行统一的排序,依据接收源的不同采用不同的解压缩算法和解密算法,然后按序发送给高层。对于该DRB,其一个PDCP实体在源网络设备侧和目标网络设备侧均需要执行独立的安全算法、独立的头压缩算法。对于终端设备来说,需要同时接收源网络设备和目标网络设备发送的数据包,终端设备依据数据来源的不同应用相应的安全算法以及执行相应的头压缩算法,采用公共的排序功能以便获得完整、有序的数据包。
(2)DAPS切换的上行数据传输:对于一个应用DAPS切换的DRB,在切换过程中,终端设备为数据包统一分配PDCP SN,部分数据包通过源链路发送给源网络设备,另一部分数据包通过新的链路发送给目标网络设备。根据发送的对象不同,终端设备对数据包采用不同的安全算法、不同的头压缩算法,如对于通过源链路发送的数据包,需要依据源网络设备侧的安全算法以及头压缩算法进行处理;对于通过新链路发送的数据包,需要依据目标网络设备侧的安全算法以及头压缩算法进行处理。
对于应用DAPS切换的DRB,切换过程中只有一个PDCP实体。在切换过程中,这个PDCP实体需要处理两套的安全算法和两套头压缩算法。配置DAPS切换可以应用于密钥更新的场景(reconfiguration with sync for DAPS and security key refresh),也可以应用于不需要密钥更新的场景(reconfiguration with sync for DAPS but without security key refresh)。对于不需要密钥更新的场景,对于DAPS DRB的PDCP实体,也需要建立目标侧的加密和完整性保护功能。
如图1所示,图1是本申请实施例提供的一种DAPS切换中终端设备处理过程的示意图。终端设备在进行DAPS切换时,需要对配置为DAPS切换的数据无线承载的PDCP实体进行重配置,即新建无线链路层控制协议(Radio Link Control,RLC)实体和介质访问控制协议(Medium Access Control,MAC)实体,此时一个PDCP实体关联两个RLC实体。终端设备 继续源侧的无线电链路监视(Radio Link Monitor,RLM),继续接收源网络设备发送的数据。另外,终端设备在目标小区执行随机接入过程。如果切换定时器(T304)超时且源链路可用时,不需要触发链路的重建,继续通过源链路进行通信,以及继续源链路的失败检测。当终端设备成功随机接入目标网络设备时,终端设备切换上行PDCP数据传输,并继续源网络设备的混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)传输、重传。此时,终端设备同时接收源网络设备和目标网络设备的数据,采用两套独立的安全算法和两套头压缩算法,执行公共排序。如果目标链路失败,则立即触发重建,然后停止源链路的失败检测。终端设备在成功接入目标小区之后,停止源侧的无线电链路监视,之后目标网络设备通知终端设备释放源侧的链路,配置为DAPS切换的数据无线承载的PDCP实体恢复正常,同时释放源侧的RLC实体和MAC实体的配置。
4、载波聚合:
载波聚合(Carrier Aggregation,CA)是一种增加传输带宽的技术,可以将2~32个载波单元聚合在一起,实现超大的传输带宽,有效提高了上下行传输速率。终端设备根据自己的能力大小决定最多可以同时利用几个载波进行上下行传输。CA有两个重要概念:主小区(Primary Cell,Pcell),或称为主分量载波,和辅小区(Secondary Cell,Scell),或称为辅分量载波。在CA系统中,主小区始终只有一个,而辅小区可以有多个,且能够随时进行配置和去配置。
本申请实施例可以应用于如图2所示的网络架构示意图,图2中所示的网络架构为无线通信系统的网络架构,该网络架构通常包括终端设备、源网络设备和目标网络设备,各个设备数量以及形态并不构成对本申请实施例的限定。网络设备可以是基站(Base Station,BS),基站可以向多个终端设备提供通信服务,多个基站也可以向同一个终端设备提供通信服务。其中,终端设备支持DAPS切换,源网络设备和目标网络设备可以配置聚合载波。
需要说明的是,目前,在DAPS切换过程中,终端设备连接的源网络设备和目标网络设备均只有一个服务小区。如果源网络设备在切换之前处于载波聚合(Carrier Aggregation,CA)的状态下,即源网络设备的服务小区由主小区和辅小区组成,源网络设备在发送DAPS切换命令之前需要释放辅小区。这样的方式导致终端设备在DAPS切换过程中无法维持载波聚合状态,从而对传输速率产生不利的影响,因此如何在载波聚合状态下实现DAPS切换是 亟待解决的问题。
为了终端设备能够在载波聚合状态下实现DAPS切换,本申请实施例提供了一种小区切换方法。为了更好地理解本申请实施例提供的小区切换方法,下面对该小区切换方法进行详细描述。
请参阅图3,图3是本申请实施例提供的一种小区切换方法的流程图,该小区切换方法包括步骤301~步骤306。图3所示的方法执行主体可以为终端设备、源网络设备、目标网络设备(示例性的,可参照图2所示),该执行主体也可以为终端设备、源网络设备、目标网络设备中的芯片。图3所示的方法执行主体以终端设备、源网络设备、目标网络设备为例。该方法包括但不限于如下步骤。
301、终端设备接入源网络设备,并获取源网络设备为终端设备配置的源侧无线参数配置信息。
本申请实施例中,该源侧无线参数配置信息可以是一个或多个DRB的配置信息、载波配置信息等等。示例性的,终端设备建立了3个数据无线承载,分别是DRB1、DRB2和DRB3。终端设备接入源网络设备后,由于DRB1的服务质量参数要求较高,要求数据传输时延较短,因此源网络设备可以为DRB1配置DAPS切换,DRB2和DRB3不配置DAPS切换;由于DRB2和DRB3的传输速率要求较高,因此源网络设备为终端设备配置载波聚合,即终端设备配置两个服务小区,包括一个主小区和一个辅小区。
302、源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换。
本申请实施例中,源网络设备在接收到终端设备发送的测量报告之后,发现终端设备已经不在源小区的中心区域,为了满足移动性,源网络设备依据终端设备上报的测量报告,选择合适的小区作为终端设备切换的目标小区,源网络设备可以向该目标小区所属的网络设备(即目标网络设备)发送切换请求。该切换请求可以包括终端设备的能力信息、一个或多个DRB的配置信息。其中,该终端设备的能力信息包括终端设备支持载波聚合下的DAPS切换,该一个或多个DRB的配置信息指示至少一个DRB配置为DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。也就是说,目标网络设备通过终端设备支持的DAPS切换的带宽组合信息,可以确定目标网络设备能够为终端设备配置的目标侧无线参数配置信息。基于该可能实现的方式,能够保证目标网络设备为终端设备配置的无线参数的合理性。需要说明的是,终端设备支持的DAPS切换的带宽组合信息可以通过终端设备能力直接指示,如可以通过新空口双连接(New Radio Dual Connectivity,NR DC)中的带宽组合进行指示,也可以通过新引入的专用于载波聚合下的DAPS切换的带宽组合进行指示,在此不作限定。
示例性的,终端设备支持的DAPS切换的带宽组合信息为2+2带宽组合类型,即源网络设备和目标网络设备均最多只能有两个载波。因此,目标网络设备可以为终端设备配置一个载波或两个载波,以目标网络设备为终端设备配置两个载波为例,目标网络设备为终端设备配置切换命令中的目标侧无线参数配置信息,包括两个载波的频率、带宽等信息。后续目标网络设备向源网络设备返回切换请求确认,该切换请求确认中可以包含该目标侧无线参数配置信息,以及终端设备接入目标小区所需要的随机接入相关的参数等。
在一种可能的实现方式中,源网络设备向目标网络设备发送切换请求之前,该方法还包括:向终端设备发送用于减少源网络设备配置的重配置信令。当源网络设备确定终端设备的某个DRB需要配置DAPS切换后,可以重配置终端设备在源网络设备的源侧无线参数配置信息。示例性的,减少源网络设备配置的方式可以是减少服务小区的数量,例如从多个服务小区减少到1个或2个服务小区。基于该可能的实现方式,有利于目标网络设备能够充分利用终端设备未使用的处理能力,合理配置在目标网络设备侧的带宽组合。
可选的,该方法还包括:若该重配置信令指示释放所有的服务小区,则源网络设备在向终端设备发送该目标侧无线参数配置信息之后,中断与终端设备的通信。当该重配置信令指示释放所有的服务小区时,按照正常的切换流程实施切换,即源网络设备中断与终端设备的通信,不实施DAPS切换。
在一种可能的实现方式中,源网络设备向目标网络设备发送切换请求之前,该方法还包括:向终端设备发送获取带宽组合的指示信息,该指示信息用于请求终端设备上报该终 端设备支持的在目标网络设备侧的带宽组合信息;接收终端设备发送的该终端设备支持的在目标网络设备侧的带宽组合信息。若源网络设备确定终端设备建立的至少一个DRB需配置DAPS切换,在重配置终端设备的无线参数时,可以请求终端设备上报DAPS切换中终端设备支持的在目标网络设备侧的带宽组合信息,终端设备基于此时源网络设备配置的带宽组合以及自身的能力确定在DAPS切换过程中能够支持的在目标网络设备侧的带宽组合信息。基于该可能的实现方式,有利于提高目标网络设备为终端设备配置的无线参数的合理性和可靠性,同时该方法可以有效减少能力比特数的开销,因为终端设备支持的在DAPS切换中的源侧和目标侧的带宽组合会随着频带Band数量的增加而急剧增长,让终端设备基于当前源侧配置的带宽组合上报DAPS切换中所支持的在目标网络侧的带宽组合可以显著减少组合的数量。
示例性的,源网络设备通过RRC重配置信令为终端设备重配置源侧无线参数配置信息,并且向终端设备发送获取带宽组合的指示信息,该指示信息用于请求终端设备上报DAPS切换中该终端设备支持的在目标网络设备侧的带宽组合信息。源网络设备收到终端设备上报的DAPS切换中该终端设备支持的在目标网络设备侧的带宽组合信息之后,结合终端设备上报的关于邻区的测量报告以及自己所知的相邻基站的支持频带组合,可以有选择地向不同的目标基站发送切换请求,在切换请求中可以指示DAPS切换中该终端设备支持的在目标网络设备侧的带宽组合信息。
303、目标网络设备基于该切换请求确定终端设备的目标侧无线参数配置信息。
本申请实施例中,目标网络设备接收到源网络设备发送的切换请求,根据该切换请求中包括的信息确定终端设备的目标侧无线参数配置信息,即确定切换请求确认消息的内容。示例性的,目标网络设备可以根据切换请求中包括的终端设备支持的DAPS切换的带宽组合信息确定终端设备的目标侧无线参数配置信息。
304、目标网络设备向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
本申请实施例中,目标网络设备确定出目标侧无线参数配置信息后,向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。源网络设备接收到该切换请求确认后,源网络设备不解析该目标侧无线参数配置信息,将该切换请求确认中包 括的该目标侧无线参数配置信息通过RRC重配置信令转发给终端设备。
305、源网络设备向终端设备发送该目标侧无线参数配置信息。
本申请实施例中,源网络设备接收目标网络设备发送的切换请求确认之后,将该切换请求确认中包含的目标侧无线参数配置信息发送给终端设备,后续终端设备可以根据该目标侧无线参数配置信息执行DAPS切换。
306、终端设备基于该目标侧无线参数配置信息执行DAPS切换。
本申请实施例中,终端设备接收源网络设备发送的目标侧无线参数配置信息,然后基于该目标侧无线参数配置信息执行DAPS切换。其中,源侧无线参数配置信息指示源网络设备为终端设备配置了载波聚合,和/或目标侧无线参数配置信息指示目标网络设备为终端设备配置了载波聚合。也就是说,源网络设备和目标网络设备至少有一个为终端设备配置了载波聚合。对于配置了DAPS切换的DRB,终端设备在DAPS切换过程中,终端设备需要重配置该DRB对应的PDCP实体,以便终端设备能够同时处理源网络设备和目标网络设备发送的该DRB的数据。对于上行数据传输,终端设备也需要同时处理向源网络设备和目标网络设备发送的数据。需要说明的是,当终端设备不支持同时向源网络设备和目标网络设备发送上行数据时,终端设备可以采用时分方式分别向源网络设备和目标网络设备发送数据。
在一种可能的实现方式中,终端设备接收源网络设备发送的目标侧无线参数配置信息之前,还包括:接收源网络设备发送的用于减少源网络设备配置的重配置信令;基于该重配置信令对该源侧无线参数配置信息进行调整。基于该可能的实现方式,有利于目标网络设备能够充分利用终端设备未使用的处理能力,合理配置在目标网络设备侧的带宽组合。
示例性的,终端设备原本的源侧无线参数配置信息为主小区和标识为1的辅小区(PCell+Scell1)的带宽组合。该重配置信令指示终端设备从2个服务小区减少到1个服务小区,则终端设备基于该重配置信令将该源侧无线参数配置信息调整为一个主小区(PCell),释放辅小区(Scell1)。
可选的,该方法还包括:若该重配置信令指示释放所有的服务小区,则终端设备在接收到源网络设备发送的目标侧无线参数配置信息之后,中断与源网络设备的通信。当该重配置信令指示释放所有的服务小区时,终端设备按照正常的切换流程实施切换,即终端设备中断与源网络设备的通信,不实施DAPS切换。
在一种可能的实现方式中,终端设备接收源网络设备发送的目标侧无线参数配置信息之前,还包括:接收源网络设备发送的获取带宽组合的指示信息,该指示信息用于请求终端设备上报该终端设备支持的在目标网络设备侧的带宽组合信息;基于该源侧无线参数配置信息和该终端设备的能力信息确定该终端设备支持的在目标网络设备侧的带宽组合信息;向源网络设备发送该终端设备支持的在目标网络设备侧的带宽组合信息。基于该可能的实现方式,有利于提高目标网络设备为终端设备配置的无线参数的合理性和可靠性。
示例性的,终端设备接收源网络设备发送的获取带宽组合的指示信息,源网络设备为终端设备配置的源侧无线参数配置信息为主小区和标识为1的辅小区(PCell+Scell1)的带宽组合。终端设备根据该源侧无线参数配置信息以及自己支持的能力信息,确定在DAPS切换过程中终端设备支持的在目标网络设备侧的带宽组合信息。例如,目标网络设备可以配置一个载波的频带(如指示NR Band信息),还可以包括带宽信息(即可配置的最大带宽大小);或者目标网络设备可以配置两个载波的频带信息(如指示Intra Band CA,或Inter Band CA的不同频带组合信息),还可以指示每个载波可配置的最大带宽大小;或者目标网络设备可以配置三个载波的频带信息等等。终端设备将确定的在DAPS切换过程中终端设备支持的在目标网络设备侧的带宽组合信息上报给源网络设备。
在图3所描述的方法中,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;目标网络设备基于该切换请求确定终端设备的目标侧无线参数配置信息,并将该目标侧无线参数配置信息通过源网络设备发送给终端设备,终端设备基于该目标侧无线参数配置信息执行DAPS切换。因此,基于图3所描述的方法,终端设备能够在载波聚合状态下实现DAPS切换。
请参阅图4,图4是本申请实施例提供的另一种小区切换方法的流程图,该小区切换方法包括步骤401~步骤406。图4所示的方法执行主体可以为终端设备、源网络设备、目标网络设备(示例性的,可参照图2所示),该执行主体也可以为终端设备、源网络设备、目标网络设备中的芯片。图4所示的方法执行主体以终端设备、源网络设备、目标网络设备为例。该方法包括但不限于如下步骤。
401、终端设备接入源网络设备,并获取源网络设备为终端设备配置的源侧无线参数配置信息。
其中,步骤401的具体实现方式与上述步骤301的具体实现方式相同,在此不赘述。
402、源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换。
本申请实施例中,源网络设备在接收到终端设备发送的测量报告之后,发现终端设备已经不在源小区的中心区域,为了满足移动性,源网络设备依据终端设备上报的测量报告,选择合适的小区作为终端设备切换的目标小区,源网络设备可以向该目标小区所属的网络设备(即目标网络设备)发送切换请求。该切换请求可以包括终端设备的能力信息、一个或多个DRB的配置信息和终端设备的源侧无线参数配置信息。其中,该终端设备的能力信息包括终端设备支持载波聚合下的DAPS切换,该一个或多个DRB的配置信息指示至少一个DRB配置为DAPS切换。
在一种可能的实现方式中,该能力信息还包括终端设备支持的DAPS切换的带宽组合信息,该带宽组合信息包括终端设备支持的在源网络设备侧的带宽组合信息和终端设备支持的在目标网络设备侧的带宽组合信息,或者该带宽组合信息包括终端设备支持的在目标网络设备侧的带宽组合信息。该可能的实现方式与上述步骤302中描述的可能的实现方式相同,在此不作赘述。
在一种可能的实现方式中,该切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息。
可选的,该方法还包括:源网络设备基于该第一指示信息释放一个或多个服务小区。目标网络设备向源网络设备发送切换请求确认,该切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息,源网络设备根据该第一指示信息释放一个或多个服务小区。
示例性的,目标网络设备确定的第一指示信息指示释放源网络设备的标识为1的辅小区,即释放标识1对应的辅小区。源网络设备获取到切换请求确认中包含的该第一指示信息后,根据该第一指示信息的指示通过RRC信令释放该辅小区。
进一步可选的,该方法还包括:若源网络设备向终端设备指示释放所有的服务小区,则源网络设备在向终端设备发送该目标侧无线参数配置信息之后,中断与终端设备的通信。当源网络设备向终端设备指示释放所有的服务小区才能满足目标网络设备为终端设备配置的目标侧无线参数配置信息,则终端设备按照正常的切换流程实施切换,即中断与终端设备的通信,不实施DAPS切换。
在一种可能的实现方式中,源网络设备接收目标网络设备发送的切换请求确认之后,该方法还包括:基于该第一指示信息向终端设备发送用于减少源网络设备配置的重配置信令。源网络设备根据该第一指示信息生成重配置信令,重配置终端设备在源网络设备的源侧无线参数配置信息。
示例性的,目标网络设备确定的第一指示信息指示释放源网络设备的标识为1的辅小区,即释放标识1对应的辅小区。源网络设备获取到切换请求确认中包含的该第一指示信息后,根据该第一指示信息生成用于减少源网络设备配置的重配置信令,并发送给终端设备。其中,该重配置信令指示终端设备释放标识1对应的辅小区。
403、目标网络设备基于该切换请求确定终端设备的目标侧无线参数配置信息。
本申请实施例中,目标网络设备接收到源网络设备发送的切换请求,根据该切换请求中包括的信息确定终端设备的目标侧无线参数配置信息,即确定切换请求确认消息的内容。示例性的,目标网络设备可以依据自身管辖小区的负载信息以及配置DAPS切换的一个或多个DRB的服务质量要求配置自己所倾向的目标侧无线参数配置信息。
在一种可能的实现方式中,目标网络设备基于该切换请求确定终端设备的目标侧无线参数配置信息,包括:基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息。目标网络设备接收到源网络设备发送的切换请求之后,目标网络设备可以依据自身管辖小区的负载信息以及配置DAPS切换的一个或多个DRB的服务质量要求配置自己所倾向的目标侧无线参数配置信息。基于该可能的实现方式,有利于提高目标网络设备为终端设备配置的无线参数的合理性和可靠性。
在一种可能的实现方式中,该切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息,该方法还包括:目标网络设备基于该目标侧无线参数配置信息、该源侧无线参数配置信息和该终端设备支持的DAPS切换的带宽组合信息确定该第一指示信 息。目标网络设备配置自己所倾向的目标侧无线参数配置信息之后,目标网络设备通过该目标侧无线参数配置信息、该源侧无线参数配置信息和该终端设备支持的DAPS切换的带宽组合信息进行判断:若超出了终端设备本身支持的带宽能力,即目标侧无线参数配置信息超出了终端设备支持的在目标网络设备侧的带宽组合,则需要指示源网络设备释放(部分)服务小区。其中,指示释放源网络设备的服务小区的第一指示信息包含在切换请求确认消息中。该第一指示信息可以指示减少的服务小区数量,或者直接指示需要释放的服务小区标识,在此不作限定。另外,目标网络设备也可以指示该目标网络设备侧配置的带宽信息,以便源网络设备合理删减部分服务小区。
示例性的,终端设备可以支持2+2,以及1+3的带宽组合,即源网络设备和目标网络设备均最多只能有两个载波、或者一侧只能配置有一个载波而另一侧可以配置最多3个载波。当目标网络设备为终端设备配置了3个载波,而此时源网络设备还配置了两个载波(主小区上的载波和辅小区上的载波),源网络设备和目标网络设备的配置超出了终端设备的能力,此时目标网络设备在向源网络设备返回的切换请求确认消息中除了携带目标网络设备配置的第二无线参数配置信息,还指示源网络设备需要释放服务小区的信息,即指示释放辅小区。
404、目标网络设备向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
405、源网络设备向终端设备发送该目标侧无线参数配置信息。
其中,步骤404和步骤405的具体实现方式与上述步骤304和步骤305的具体实现方式相同,在此不赘述。
需要说明的是,如果在步骤304中,切换请求确认中包含用于指示释放源网络设备的服务小区的第一指示信息,源网络设备可以在一条RRC信令中同时指示释放服务小区和指示目标侧无线参数配置信息,终端设备收到之后,首先执行释放服务小区,然后按照目标侧无线参数配置信息执行切换,源网络设备也可以采用两条独立的RRC信令分别指示释放服务小区和指示目标侧无线参数配置信息。
406、终端设备基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。
本申请实施例中,终端设备接收源网络设备发送的目标侧无线参数配置信息,然后基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。其中,源网络设备和目标网络设备至少有一个为终端设备配置了载波聚合。
在一种可能的实现方式中,终端设备接收源网络设备发送的目标侧无线参数配置信息之前,还包括:接收源网络设备发送的用于减少源网络设备配置的重配置信令;基于该重配置信令对该源侧无线参数配置信息进行调整。基于该可能的实现方式,有利于目标网络设备能够充分利用终端设备未使用的处理能力,合理配置在目标网络设备侧的带宽组合。该可能的实现方式与上述步骤306中描述的可能的实现方式相同,在此不作赘述。
示例性的,终端设备原本的源侧无线参数配置信息为主小区和标识为1的辅小区(PCell+Scell1)的带宽组合。该重配置信令指示释放源网络设备的标识为1的辅小区,即释放标识1对应的辅小区,则终端设备基于该重配置信令将该源侧无线参数配置信息调整为一个主小区(PCell),释放标识1对应的辅小区(Scell1)。
可选的,该方法还包括:若该重配置信令指示释放所有的服务小区,则终端设备在接收到源网络设备发送的目标侧无线参数配置信息之后,中断与源网络设备的通信。当该重配置信令指示释放所有的服务小区时,终端设备按照正常的切换流程实施切换,即终端设备中断与源网络设备的通信,不实施DAPS切换。
在图4所描述的方法中,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;目标网络设备基于该切换请求确定终端设备的目标侧无线参数配置信息,并将该目标侧无线参数配置信息通过源网络设备发送给终端设备,终端设备基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。因此,基于图4所描述的方法,终端设备能够在载波聚合状态下实现DAPS切换。
请参阅图5,图5是本申请实施例提供的另一种小区切换方法的流程图,该小区切换方法包括步骤501~步骤506。图5所示的方法执行主体可以为终端设备、源网络设备、目标网络设备(示例性的,可参照图2所示),该执行主体也可以为终端设备、源网络设备、目标 网络设备中的芯片。图5所示的方法执行主体以终端设备、源网络设备、目标网络设备为例。该方法包括但不限于如下步骤。
501、终端设备接入源网络设备,并获取源网络设备为终端设备配置的源侧无线参数配置信息。
其中,步骤501的具体实现方式与上述步骤301的具体实现方式相同,在此不赘述。
502、源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换。
本申请实施例中,源网络设备在接收到终端设备发送的测量报告之后,发现终端设备已经不在源小区的中心区域,为了满足移动性,源网络设备依据终端设备上报的测量报告,选择合适的小区作为终端设备切换的目标小区,源网络设备可以向该目标小区所属的网络设备(即目标网络设备)发送切换请求。该切换请求可以包括终端设备的能力信息,该终端设备的能力信息包括终端设备支持载波聚合下的DAPS切换。
503、目标网络设备基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定目标侧无线参数配置信息。
本申请实施例中,目标网络设备接收到源网络设备发送的切换请求之后,目标网络设备可以依据自身管辖小区的负载信息以及配置DAPS切换的一个或多个DRB的服务质量要求配置自己所倾向的目标侧无线参数配置信息。基于该可能的实现方式,有利于提高目标网络设备为终端设备配置的无线参数的合理性和可靠性。
504、目标网络设备向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
505、源网络设备向终端设备发送该目标侧无线参数配置信息。
506、终端设备基于该目标侧无线参数配置信息和一个或多个DRB的配置信息执行DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换。
本申请实施例中,终端设备接收源网络设备发送的目标侧无线参数配置信息,当根据一个或多个DRB的配置信息确定至少一个DRB配置为DAPS切换时,终端设备基于该目标侧无线参数配置信息执行DAPS切换。其中,源网络设备和目标网络设备至少有一个为终端设备配置了载波聚合。
在一种可能的实现方式中,终端设备接收源网络设备发送的目标侧无线参数配置信息之后,还包括:基于该目标侧无线参数配置信息和该终端设备的能力信息对源侧无线参数配置信息进行调整。目标网络设备接收到切换请求之后,可以配置自己所倾向的目标侧无线参数配置信息,然后向源网络设备返回切换请求确认。源网络设备通过RRC重配置信令通知终端设备该目标侧无线参数配置信息。终端设备在发现源网络设备和目标网络设备配置的无线参数超出终端设备的处理能力时,终端设备优先保证目标网络设备配置的目标侧无线参数配置信息,并调整源网络设备配置的源侧无线参数配置信息,比如减少源侧服务小区的数量。其中,对于DAPS切换,源网络设备至少有一个服务小区;如果终端设备发现在优先保证目标网络设备配置的目标侧无线参数配置信息之后,没有剩余能力用于维持源侧的一个服务小区,此时终端设备释放源侧的所有服务小区,终端设备执行非DAPS切换。
示例性的,终端设备在源网络设备的源侧无线参数配置信息为主小区和标识为1的辅小区(PCell+Scell1)的带宽组合,即两个载波。终端设备在目标网络设备的目标侧无线参数配置信息为3个载波。终端设备能够支持的DAPS切换的带宽组合为1+3的带宽组合,即源网络设备和目标网络设备分别是1个载波和3个载波。终端设备确定源网络设备仅能维持一个服务小区才能满足目标网络设备配置的目标侧无线参数配置信息,因此,终端设备主动释放SCell1,即不再从SCell1接收下行信令/数据,也不向SCell1发送上行数据。
在一种可能的实现方式中,该方法还包括:若完全释放终端设备在源网络设备侧的无线参数配置,则终端设备中断与源网络设备的通信。当完全释放终端设备在源网络设备侧的无线参数配置才能满足目标网络设备配置的目标侧无线参数配置信息时,终端设备按照正常的切换流程实施切换,即终端设备中断与源网络设备的通信,不实施DAPS切换。
在图5所描述的方法中,源网络设备向目标网络设备发送切换请求,该切换请求包括终端设备在载波聚合下的DAPS切换能力信息,目标网络设备基于该切换请求确定终端设备在目标网络设备的第二无线参数配置信息,并将该第二无线参数配置信息通过源网络设备发送给终端设备,终端设备基于该第二无线参数配置信息执行DAPS切换,其中,该第二无线参数配置指示至少一个数据无线承载配置为DAPS切换。因此,基于图5所描述的方法,终端设备能够在载波聚合状态下实现DAPS切换。
请参阅图6,图6是本申请实施例提供的一种数据传输方法的流程图,该数据传输方法包括步骤601~步骤602。图6所示的方法执行主体可以为终端设备(示例性的,可参照图2所示),该执行主体也可以为终端设备中的芯片。图6所示的方法执行主体以终端设备为例。该方法包括但不限于如下步骤。
601、终端设备在执行DAPS切换过程中,若终端设备对应的源网络设备包括多个服务小区,且终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,终端设备通过该辅小区与该源网络设备继续进行数据传输。
本申请实施例中,终端设备在执行DAPS切换过程中,终端设备继续维持与源网络设备的连接,同时依据目标小区配置的无线参数接入目标主小区。当终端设备在目标网络设备开展随机接入流程时,终端设备在源网络设备侧还继续检测源主小区的无线链路。若终端设备对应的源网络设备包括多个服务小区,且终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,终端设备可以通过该辅小区与该源网络设备继续进行数据传输。基于该方式,终端设备配置为DAPS切换的DRB能够在DAPS切换过程中减少切换中断的时延。
需要说明的是,终端设备可以从源网络设备发送的配置中判断出该配置为DAPS切换的DRB是否可以通过辅小区进行数据传输。示例性的,源网络设备可以通过RRC信令配置该DRB对应的逻辑信道通过辅小区进行传输。又示例性的,该DRB对应的逻辑信道通过设定的子载波间隔进行传输,例如该DRB仅能通过30kHz的子载波间隔进行传输,而主小区采用15kHz的子载波间隔,辅小区采用30kHz的子载波间隔,则间接获知该DRB通过辅小区进行数据传输。
示例性的,终端设备在源网络设备的第一无线参数配置信息为主小区和标识为1的辅小区(PCell+Scell1)的带宽组合,终端设备此时通过源网络设备的主小区与该源网络设备进行数据传输。终端设备建立的DRB1配置为DAPS切换,且允许通过源网络设备的辅小区与该源网络设备进行数据传输。当终端设备发现源网络设备的主小区(PCell)发生无线链路失败,终端设备可以通过源网络设备的辅小区(Scell1)与该源网络设备继续进行数据传输。
在一种可能的实现方式中,该方法还包括:在终端设备通过该辅小区与该源网络设备进行数据传输的过程中,若该辅小区发生波束失败(即所有辅小区均发生波束失败),则终端设备中断与该源网络设备的通信。也就是说,若所有辅小区均发生波束失败,则终端设备按照正常的切换流程实施切换,即中断与终端设备的通信,不实施DAPS切换。
在一种可能的实现方式中,该方法还包括:若终端设备配置为DAPS切换的DRB不允许通过源网络设备的主小区进行数据传输,则在收到切换命令之后,终端设备停止通过该主小区与该源网络设备进行数据传输,或该终端设备优先通过该辅小区与该源网络设备进行数据传输。也就是说,终端设备不需要维持主小区与源网络设备的数据传输,或者终端设备优先保证辅小区与源网络设备的数据传输,如优先保证向辅小区发送数据的传输功率。基于该可能的实现方式,能够减少终端设备处理的复杂度,降低终端设备的传输功率,同时满足配置了DAPS切换的DRB在切换过程中的中断时延需求。
在一种可能的实现方式中,该方法还包括:若终端设备配置为DAPS切换的DRB不允许通过源网络设备的辅小区进行数据传输,则在收到切换命令之后,终端设备停止通过该辅小区与该源网络设备进行数据传输,或该终端设备优先通过该主小区与该源网络设备进行数据传输。同理,终端设备不需要维持辅小区与源网络设备的数据传输,或者终端设备优先保证主小区与源网络设备的数据传输,如优先保证向主小区发送数据的传输功率。基于该可能的实现方式,能够减少终端设备处理的复杂度,降低终端设备的传输功率,同时满足配置了DAPS切换的DRB在切换过程中的中断时延需求。
602、源网络设备接收终端设备发送的数据。
在图6所描述的方法中,终端设备在执行DAPS切换过程中,若终端设备对应的源网络设备包括多个服务小区,且终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,终端设备通过该辅小区与该源网络设备继续进行数据传输。因此,基于图6所描述的方法,终端设备配置为DAPS切换的DRB能够在DAPS切换过程中减少切换中断的时延。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是源网络设备,也可以是源网络设备中的装置,或者是能够和源网络设备匹配使用的装置。图7 所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;
通信单元702,还用于接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;
通信单元702,还用于向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图3对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;
处理单元701,用于基于该切换请求确定终端设备的目标侧无线参数配置信息;
通信单元702,还用于向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图3对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;
通信单元702,用于接收源网络设备发送的该终端设备的目标侧无线参数配置信息;
处理单元701,还用于基于该目标侧无线参数配置信息执行DAPS切换。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图3对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是源网络设备,也可以是源网络设备中的装置,或者是能够和源网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;
通信单元702,还用于接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;
通信单元702,还用于向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图4对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;
处理单元701,用于基于该切换请求确定终端设备的目标侧无线参数配置信息;
通信单元702,还用于向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图4对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;
通信单元702,用于接收源网络设备发送的该终端设备的目标侧无线参数配置信息;
处理单元701,还用于基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图4对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是源网络设备,也可以是源网络设备中的装置,或者是能够和源网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换;
通信单元702,还用于接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;
通信单元702,还用于向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图5对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接收源网络设备发送的切换请求,该切换请求包括终端设备的能 力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;
处理单元701,用于基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息;
通信单元702,还用于向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图5对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信单元702同理,下文不再赘述。其中:
通信单元702,用于接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;
通信单元702,用于接收源网络设备发送的该终端设备的目标侧无线参数配置信息;
处理单元701,还用于基于该目标侧无线参数配置信息和一个或多个DRB的配置信息执行DAPS切换。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图5对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
请参见图7,图7示出了本申请实施例的一种通信装置的结构示意图。该装置可以是目标网络设备,也可以是目标网络设备中的装置,或者是能够和目标网络设备匹配使用的装置。图7所示的通信装置70可以包括处理单元701和通信单元702。其中,处理单元701,用于进行数据处理。通信单元702集成有接收单元和发送单元。通信单元702也可以称为收发单元。或者,也可将通信单元702拆分为接收单元和发送单元。下文的处理单元701和通信 单元702同理,下文不再赘述。其中:
通信单元702,用于在执行DAPS切换过程中,若该终端设备对应的源网络设备包括多个服务小区,且该终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,通过该辅小区与该源网络设备继续进行数据传输。
需要说明的是,该通信装置的其他可能的实现方式,可参见上述图6对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
上述通信装置例如可以是:芯片、或者芯片模组。关于上述实施例中描述的各个装置、产品包含的各个模块,其可以是软件模块,也可以是硬件模块,或者也可以部分是软件模块,部分是硬件模块。例如,对于应用于或集成于芯片的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于芯片内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现;对于应用于或集成于芯片模组的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于芯片模组内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现;对于应用于或集成于终端的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,不同的模块可以位于终端内同一组件(例如,芯片、电路模块等)或者不同组件中,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于终端内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现。
如图8所示为本申请实施例提供的另一种通信装置80,用于实现上述图3~图5中源网络设备的功能。该装置可以是源网络设备或用于源网络设备的装置。用于源网络设备的装置可以为源网络设备内的芯片系统或芯片。其中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
或者,通信装置80,用于实现上述图3~图5中目标网络设备的功能。该装置可以是目标网络设备或用于目标网络设备的装置。用于目标网络设备的装置可以为目标网络设备内 的芯片系统或芯片。其中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
又或者,通信装置80,用于实现上述图3~图6中终端设备的功能。该装置可以是终端设备或用于终端设备的装置。用于终端设备的装置可以为终端设备内的芯片系统或芯片。其中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置80包括至少一个处理器820,用于实现本申请实施例提供的方法中终端设备的数据处理功能。通信装置80还可以包括通信接口810,用于实现本申请实施例提供的方法中终端设备的收发操作。在本申请实施例中,通信接口可以是收发器、电路、总线、模块或其它类型的通信接口,用于通过传输介质和其它设备进行通信。例如,通信接口810用于通信装置80中的装置可以和其它设备进行通信。处理器820利用通信接口810收发数据,并用于实现上述方法实施例图2所述的方法。
通信装置80还可以包括至少一个存储器830,用于存储程序指令和/或数据。存储器830和处理器820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。处理器820可能和存储器830协同操作。处理器820可能执行存储器830中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
当通信装置80开机后,处理器820可以读取存储器830中的软件程序,解释并执行软件程序的指令,处理软件程序的数据。当需要通过无线发送数据时,处理器820对待发送的数据进行基带处理后,输出基带信号至射频电路(图未示意),射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置80时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器820,处理器820将基带信号转换为数据并对该数据进行处理。
在另一种实现中,所述的射频电路和天线可以独立于进行基带处理的处理器820而设置,例如在分布式场景中,射频电路和天线可以与独立于通信装置,呈拉远式的布置。
本申请实施例中不限定上述通信接口810、处理器820以及存储器830之间的具体连接介质。本申请实施例在图8中以存储器830、处理器820以及通信接口810之间通过总线840连接,总线在图8中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图8中仅用一 条粗线表示,但并不表示仅有一根总线或一种类型的总线。
通信装置80具体是用于终端设备时,例如通信装置80具体是芯片或者芯片系统时,通信接口810所输出或接收的可以是基带信号。通信装置80具体是终端设备时,通信接口810所输出或接收的可以是射频信号。在本申请实施例中,处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、操作及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的操作可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
需要说明的是,该通信装置可以执行前述方法实施例中终端设备或接入网设备的相关步骤,具体可参见上述各个步骤所提供的实现方式,在此不再赘述。
对于应用于或集成于通信装置的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,不同的模块可以位于终端内同一组件(例如,芯片、电路模块等)或者不同组件中,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于终端内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图3对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息和一个 或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图3对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息执行DAPS切换。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图3对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图4对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切 换请求确定终端设备的目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图4对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图4对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换;接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图5对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息;向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图5对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和一个或多个DRB的配置信息执行DAPS切换。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图5对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
本申请实施例还提供了一种芯片,包括处理器和通信接口,该处理器被配置用于执行如下操作:在执行DAPS切换过程中,若该终端设备对应的源网络设备包括多个服务小区,且该终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,通过该辅小区与该源网络设备继续进行数据传输。
需要说明的是,该芯片的其他可能的实现方式,可参见上述图6对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
在一种可能的实现方式中,上述芯片包括至少一个处理器、至少一个第一存储器和至少一个第二存储器;其中,前述至少一个第一存储器和前述至少一个处理器通过线路互联,前述第一存储器中存储有指令;前述至少一个第二存储器和前述至少一个处理器通过线路互联,前述第二存储器中存储前述方法实施例中需要存储的数据。
对于应用于或集成于芯片的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于芯片内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数 据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;触发通信模组901接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;触发通信模组901向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图3对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息和一个或多个DRB的配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;触发通信模组901向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图3对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数 据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;触发通信模组901接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息执行DAPS切换。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图3对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括该终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;触发通信模组901接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;触发通信模组901向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图4对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接收源网络设备发送的切换请求, 该切换请求包括终端设备的能力信息、一个或多个DRB的配置信息和该终端设备的源侧无线参数配置信息,该能力信息包括终端设备支持载波聚合下的DAPS切换,该配置信息指示至少一个DRB配置为DAPS切换;基于该切换请求确定终端设备的目标侧无线参数配置信息;触发通信模组901向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图4对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;触发通信模组901接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和该源侧无线参数配置信息执行DAPS切换。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图4对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901向目标网络设备发送切换请求,该切换请求包括终端设备的能力信息,该能力信息包括该终端设备支持载波聚合下的DAPS 切换;触发通信模组901接收该目标网络设备发送的切换请求确认,该切换请求确认包括该终端设备的目标侧无线参数配置信息;触发通信模组901向该终端设备发送该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图5对应的方法实施例中对源网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接收源网络设备发送的切换请求,该切换请求包括终端设备的能力信息,该能力信息包括终端设备支持载波聚合下的DAPS切换;基于该切换请求、该目标网络设备的负载信息和一个或多个DRB的服务质量要求确定该目标侧无线参数配置信息;触发通信模组901向源网络设备发送切换请求确认,该切换请求确认包括该目标侧无线参数配置信息。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图5对应的方法实施例中对目标网络设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:触发通信模组901接入源网络设备,并获取该源网络设备为该终端设备配置的源侧无线参数配置信息;触发通信模组901接收源网络设备发送的该终端设备的目标侧无线参数配置信息;基于该目标侧无线参数配置信息和一个或多个 DRB的配置信息执行DAPS切换。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图5对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
如图9所示,图9是本申请实施例提供的一种模组设备的结构示意图。该模组设备90可以执行前述方法实施例中终端设备的相关步骤,该模组设备90包括:通信模组901、电源模组902、存储模组903以及芯片模组904。
其中,所述电源模组902用于为所述模组设备提供电能;所述存储模组903用于存储数据和指令;所述通信模组901用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;所述芯片模组904用于:在执行DAPS切换过程中,若该终端设备对应的源网络设备包括多个服务小区,且该终端设备配置为DAPS切换的DRB允许通过源网络设备的辅小区与该源网络设备进行数据传输,则当源网络设备的主小区发生无线链路失败或波束失败时,触发通信模组901通过该辅小区与该源网络设备继续进行数据传输。
需要说明的是,该芯片模组的其他可能的实现方式,可参见上述图6对应的方法实施例中对终端设备功能的相关描述,在此不赘述。
对于应用于或集成于芯片模组的各个装置、产品,其包含的各个模块可以都采用电路等硬件的方式实现,不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中,或者,至少部分模块可以采用软件程序的方式实现,该软件程序运行于芯片模组内部集成的处理器,剩余的(如果有)部分模块可以采用电路等硬件方式实现。本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在处理器上运行时,上述方法实施例的方法流程得以实现。
本申请实施例还提供一种计算机程序产品,当所述计算机程序产品在处理器上运行时,上述方法实施例的方法流程得以实现。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请并不受所描述的动作顺序的限制,因为依据本申请,某些操作可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知 悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本申请所必须的。
本申请提供的各实施例的描述可以相互参照,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。为描述的方便和简洁,例如关于本申请实施例提供的各装置、设备的功能以及执行的操作可以参照本申请方法实施例的相关描述,各方法实施例之间、各装置实施例之间也可以互相参考、结合或引用。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (56)

  1. 一种小区切换方法,其特征在于,应用于源网络设备,所述方法包括:
    向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    向所述终端设备发送所述目标侧无线参数配置信息。
  2. 根据权利要求1所述的方法,其特征在于,所述能力信息还包括所述终端设备支持的DAPS切换的带宽组合信息,所述带宽组合信息包括所述终端设备支持的在所述源网络设备侧的带宽组合信息和所述终端设备支持的在所述目标网络设备侧的带宽组合信息,或者所述带宽组合信息包括所述终端设备支持的在所述目标网络设备侧的带宽组合信息。
  3. 根据权利要求2所述的方法,其特征在于,所述向目标网络设备发送切换请求之前,所述方法还包括:
    向所述终端设备发送用于减少源网络设备配置的重配置信令。
  4. 根据权利要求2所述的方法,其特征在于,所述向目标网络设备发送切换请求之前,所述方法还包括:
    向所述终端设备发送获取带宽组合的指示信息,所述指示信息用于请求所述终端设备上报所述终端设备支持的在所述目标网络设备侧的带宽组合信息;
    接收所述终端设备发送的所述终端设备支持的在所述目标网络设备侧的带宽组合信息。
  5. 根据权利要求3所述的方法,其特征在于,所述方法还包括:
    若所述重配置信令指示释放所有的服务小区,则在向所述终端设备发送所述目标侧无线参数配置信息之后,中断与所述终端设备的通信。
  6. 一种小区切换方法,其特征在于,应用于目标网络设备,所述方法包括:
    接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激 活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  7. 根据权利要求6所述的方法,其特征在于,所述能力信息还包括所述终端设备支持的DAPS切换的带宽组合信息,所述带宽组合信息包括所述终端设备支持的在所述源网络设备侧的带宽组合信息和所述终端设备支持的在所述目标网络设备侧的带宽组合信息,或者所述带宽组合信息包括所述终端设备支持的在所述目标网络设备侧的带宽组合信息。
  8. 一种小区切换方法,其特征在于,应用于终端设备,所述方法包括:
    接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息执行双激活栈DAPS切换。
  9. 根据权利要求8所述的方法,其特征在于,所述接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息之前,所述方法还包括:
    接收所述源网络设备发送的用于减少源网络设备配置的重配置信令;
    基于所述重配置信令对所述源侧无线参数配置信息进行调整。
  10. 根据权利要求8所述的方法,其特征在于,所述接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息之前,所述方法还包括:
    接收所述源网络设备发送的获取带宽组合的指示信息,所述指示信息用于请求所述终端设备上报所述终端设备支持的在目标网络设备侧的带宽组合信息;
    基于所述源侧无线参数配置信息和所述终端设备的能力信息确定所述终端设备支持的在目标网络设备侧的带宽组合信息;
    向所述源网络设备发送所述终端设备支持的在目标网络设备侧的带宽组合信息。
  11. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    若所述重配置信令指示释放所有的服务小区,则在接收到所述源网络设备发送的所述目标侧无线参数配置信息之后,中断与所述源网络设备的通信。
  12. 一种小区切换方法,其特征在于,应用于源网络设备,所述方法包括:
    向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    向所述终端设备发送所述目标侧无线参数配置信息。
  13. 根据权利要求12所述的方法,其特征在于,所述能力信息还包括所述终端设备支持的DAPS切换的带宽组合信息,所述带宽组合信息包括所述终端设备支持的在所述源网络设备侧的带宽组合信息和所述终端设备支持的在所述目标网络设备侧的带宽组合信息,或者所述带宽组合信息包括所述终端设备支持的在所述目标网络设备侧的带宽组合信息。
  14. 根据权利要求13所述的方法,其特征在于,所述切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息。
  15. 根据权利要求14所述的方法,其特征在于,所述方法还包括:
    基于所述第一指示信息释放一个或多个服务小区。
  16. 根据权利要求14所述的方法,其特征在于,所述接收所述目标网络设备发送的切换请求确认之后,所述方法还包括:
    基于所述第一指示信息向所述终端设备发送用于减少源网络设备配置的重配置信令。
  17. 一种小区切换方法,其特征在于,应用于目标网络设备,所述方法包括:
    接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  18. 根据权利要求17所述的方法,其特征在于,所述能力信息还包括所述终端设备支持的DAPS切换的带宽组合信息,所述带宽组合信息包括所述终端设备支持的在所述源网络设备侧的带宽组合信息和所述终端设备支持的在所述目标网络设备侧的带宽组合信息,或者所述带宽组合信息包括所述终端设备支持的在所述目标网络设备侧的带宽组合信息。
  19. 根据权利要求18所述的方法,其特征在于,所述基于所述切换请求确定所述终端设备的目标侧无线参数配置信息,包括:
    基于所述切换请求、所述目标网络设备的负载信息和一个或多个DRB的服务质量要求确定所述目标侧无线参数配置信息。
  20. 根据权利要求18所述的方法,其特征在于,所述切换请求确认中还包括用于指示释放源网络设备的服务小区的第一指示信息,所述方法还包括:
    基于所述目标侧无线参数配置信息、所述源侧无线参数配置信息和所述终端设备支持的DAPS切换的带宽组合信息确定所述第一指示信息。
  21. 一种小区切换方法,其特征在于,应用于终端设备,所述方法包括:
    接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息和所述源侧无线参数配置信息执行双激活栈DAPS切换。
  22. 根据权利要求21所述的方法,其特征在于,所述基于所述目标侧无线参数配置信息和所述源侧无线参数配置信息执行DAPS切换之前,还包括:
    接收所述源网络设备发送的用于减少源网络设备配置的重配置信令;
    基于所述重配置信令对所述源侧无线参数配置信息进行调整。
  23. 根据权利要求22所述的方法,其特征在于,所述方法还包括:
    若所述重配置信令指示释放所有的服务小区,则在接收到所述源网络设备发送的所述目标侧无线参数配置信息之后,中断与所述源网络设备的通信。
  24. 一种小区切换方法,其特征在于,应用于源网络设备,所述方法包括:
    向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息,所述能力信 息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    向所述终端设备发送所述目标侧无线参数配置信息。
  25. 一种小区切换方法,其特征在于,应用于目标网络设备,所述方法包括:
    接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    基于所述切换请求、所述目标网络设备的负载信息和一个或多个数据无线承载DRB的服务质量要求确定所述目标侧无线参数配置信息;
    向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  26. 一种小区切换方法,其特征在于,应用于终端设备,所述方法包括:
    接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息和一个或多个数据无线承载DRB的配置信息执行双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换。
  27. 根据权利要求26所述的方法,其特征在于,所述接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息之后,还包括:
    基于所述目标侧无线参数配置信息和所述终端设备的能力信息对所述源侧无线参数配置信息进行调整。
  28. 根据权利要求27所述的方法,其特征在于,所述方法还包括:
    若完全释放所述终端设备在源网络设备侧的无线参数配置,则中断与所述源网络设备的通信。
  29. 一种数据传输方法,其特征在于,应用于终端设备,所述方法包括:
    在执行DAPS切换过程中,若所述终端设备对应的源网络设备包括多个服务小区,且所述终端设备配置为DAPS切换的数据无线承载DRB允许通过所述源网络设备的辅小区与 所述源网络设备进行数据传输,则当所述源网络设备的主小区发生无线链路失败或波束失败时,通过所述辅小区与所述源网络设备继续进行数据传输。
  30. 根据权利要求29所述的方法,其特征在于,所述方法还包括:
    在所述终端设备通过所述辅小区与所述源网络设备进行数据传输的过程中,若所述辅小区发生波束失败,则中断与所述源网络设备的通信。
  31. 根据权利要求29所述的方法,其特征在于,所述方法还包括:
    若所述终端设备配置为DAPS切换的DRB不允许通过所述源网络设备的主小区进行数据传输,则在收到切换命令之后,停止通过所述主小区与所述源网络设备进行数据传输,或优先通过所述辅小区与所述源网络设备进行数据传输。
  32. 根据权利要求29所述的方法,其特征在于,所述方法还包括:
    若所述终端设备配置为DAPS切换的DRB不允许通过所述源网络设备的辅小区进行数据传输,则在收到切换命令之后,停止通过所述辅小区与所述源网络设备进行数据传输,或优先通过所述主小区与所述源网络设备进行数据传输。
  33. 一种通信装置,其特征在于,包括用于实现权利要求1~32中任一项所述方法的单元。
  34. 一种通信装置,其特征在于,包括处理器和收发器;
    所述收发器,用于接收或发送信号;
    所述处理器,用于执行如权利要求1~32中任一项所述的方法。
  35. 根据权利要求34所述的通信装置,其特征在于,所述通信装置还包括存储器:
    所述存储器,用于存储计算机程序;
    所述处理器,具体用于从所述存储器中调用所述计算机程序,使得所述通信装置执行如权利要求1~32中任一项所述的方法。
  36. 一种芯片,其特征在于,
    所述芯片,用于向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    所述芯片,还用于接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    所述芯片,还用于向所述终端设备发送所述目标侧无线参数配置信息。
  37. 一种芯片,其特征在于,
    所述芯片,用于接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    所述芯片,还用于基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    所述芯片,还用于向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  38. 一种芯片,其特征在于,
    所述芯片,用于接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    所述芯片,还用于接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    所述芯片,还用于基于所述目标侧无线参数配置信息执行双激活栈DAPS切换。
  39. 一种芯片,其特征在于,
    所述芯片,用于向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    所述芯片,用于接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    所述芯片,用于向所述终端设备发送所述目标侧无线参数配置信息。
  40. 一种芯片,其特征在于,
    所述芯片,用于接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    所述芯片,用于基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    所述芯片,用于向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  41. 一种芯片,其特征在于,
    所述芯片,用于接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    所述芯片,用于接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    所述芯片,用于基于所述目标侧无线参数配置信息和所述源侧无线参数配置信息执行双激活栈DAPS切换。
  42. 一种芯片,其特征在于,
    所述芯片,用于向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    所述芯片,用于接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    所述芯片,用于向所述终端设备发送所述目标侧无线参数配置信息。
  43. 一种芯片,其特征在于,
    所述芯片,用于接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    所述芯片,用于基于所述切换请求、所述目标网络设备的负载信息和一个或多个数据无线承载DRB的服务质量要求确定所述目标侧无线参数配置信息;
    所述芯片,用于向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  44. 一种芯片,其特征在于,
    所述芯片,用于接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    所述芯片,用于接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信 息;
    所述芯片,用于基于所述目标侧无线参数配置信息和一个或多个数据无线承载DRB的配置信息执行双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换。
  45. 一种芯片,其特征在于,
    所述芯片,用于在执行DAPS切换过程中,若所述终端设备对应的源网络设备包括多个服务小区,且所述终端设备配置为DAPS切换的数据无线承载DRB允许通过所述源网络设备的辅小区与所述源网络设备进行数据传输,则当所述源网络设备的主小区发生无线链路失败或波束失败时,通过所述辅小区与所述源网络设备继续进行数据传输。
  46. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    触发所述通信模组接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    触发所述通信模组向所述终端设备发送所述目标侧无线参数配置信息。
  47. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息和一个或多个数据无线承载DRB的配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    触发所述通信模组向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  48. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    触发所述通信模组接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息执行双激活栈DAPS切换。
  49. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组向目标网络设备发送切换请求,所述切换请求包括终端设备的能力 信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    触发所述通信模组接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    触发所述通信模组向所述终端设备发送所述目标侧无线参数配置信息。
  50. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息、一个或多个数据无线承载DRB的配置信息和所述终端设备的源侧无线参数配置信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换;
    基于所述切换请求确定所述终端设备的目标侧无线参数配置信息;
    触发所述通信模组向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  51. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    触发所述通信模组接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息和所述源侧无线参数配置信息执行双激活栈DAPS切换。
  52. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组向目标网络设备发送切换请求,所述切换请求包括终端设备的能力信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    触发所述通信模组接收所述目标网络设备发送的切换请求确认,所述切换请求确认包括所述终端设备的目标侧无线参数配置信息;
    触发所述通信模组向所述终端设备发送所述目标侧无线参数配置信息。
  53. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接收源网络设备发送的切换请求,所述切换请求包括终端设备的能力信息,所述能力信息包括所述终端设备支持载波聚合下的双激活栈DAPS切换;
    基于所述切换请求、所述目标网络设备的负载信息和一个或多个数据无线承载DRB的服务质量要求确定所述目标侧无线参数配置信息;
    触发所述通信模组向所述源网络设备发送切换请求确认,所述切换请求确认包括所述目标侧无线参数配置信息。
  54. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    触发所述通信模组接入源网络设备,并获取所述源网络设备为所述终端设备配置的源侧无线参数配置信息;
    触发所述通信模组接收所述源网络设备发送的所述终端设备的目标侧无线参数配置信息;
    基于所述目标侧无线参数配置信息和一个或多个数据无线承载DRB的配置信息执行双激活栈DAPS切换,所述配置信息指示至少一个DRB配置为DAPS切换。
  55. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:
    在执行DAPS切换过程中,若所述终端设备对应的源网络设备包括多个服务小区,且所述终端设备配置为DAPS切换的数据无线承载DRB允许通过所述源网络设备的辅小区与所述源网络设备进行数据传输,则当所述源网络设备的主小区发生无线链路失败或波束失 败时,触发所述通信模组通过所述辅小区与所述源网络设备继续进行数据传输。
  56. 一种计算机可读存储介质,其特征在于,所述计算机存储介质中存储有计算机可读指令,当所述计算机可读指令在通信装置上运行时,使得所述通信装置执行权利要求1~32中任一项所述的方法。
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CN113261342A (zh) * 2019-03-22 2021-08-13 Oppo广东移动通信有限公司 一种切换处理方法、终端设备及网络设备
CN113396607A (zh) * 2019-11-06 2021-09-14 三星电子株式会社 用于在无线通信系统中执行切换的方法和设备

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US20210105671A1 (en) * 2019-10-04 2021-04-08 Samsung Electronics Co., Ltd. Capability coordination for mobility with daps
WO2021087830A1 (zh) * 2019-11-06 2021-05-14 Oppo广东移动通信有限公司 终端能力上报方法、获取终端能力的方法及相关装置
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