WO2023050181A1 - Procédé de communication sans fil et appareil de communication sans fil - Google Patents

Procédé de communication sans fil et appareil de communication sans fil Download PDF

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Publication number
WO2023050181A1
WO2023050181A1 PCT/CN2021/121791 CN2021121791W WO2023050181A1 WO 2023050181 A1 WO2023050181 A1 WO 2023050181A1 CN 2021121791 W CN2021121791 W CN 2021121791W WO 2023050181 A1 WO2023050181 A1 WO 2023050181A1
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WIPO (PCT)
Prior art keywords
configuration
terminal device
access capability
wireless access
resources
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PCT/CN2021/121791
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English (en)
Chinese (zh)
Inventor
王玲萍
戴振华
徐恒书
张亮亮
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华为技术有限公司
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Priority to PCT/CN2021/121791 priority Critical patent/WO2023050181A1/fr
Priority to CN202180101149.7A priority patent/CN117751623A/zh
Publication of WO2023050181A1 publication Critical patent/WO2023050181A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present application relates to the field of wireless communication, and more specifically, to a wireless communication method and a wireless communication device.
  • the terminal device has data transmission with the source network device (or source cell) and the target network device (or target cell) within a period of time.
  • the terminal device and the source network device perform data transmission based on the configuration of the source cell
  • the terminal device and the target network device perform data transmission based on the configuration of the target cell.
  • the configuration of the target cell is carried in a radio resource control (radio resource control, RRC) reconfiguration message sent by the source network device to the terminal device.
  • RRC radio resource control
  • the terminal device works based on the configuration of the source cell and the configuration of the target cell at the same time, the wireless access capability of the terminal device may be exceeded, thereby triggering RRC re-establishment, resulting in service interruption of the terminal device.
  • the present application provides a wireless communication method in order to avoid service interruption caused by the sum of the configuration of the source cell and the configuration of the target cell exceeding the wireless access capability of the terminal device.
  • a wireless communication method may include: receiving a first radio resource control (radio resource control, RRC) reconfiguration message from a network device to which the source cell belongs, the first RRC reconfiguration message includes Dual active protocol stack (dual active protocol stack, DAPS) switching command, the DAPS switching command is used to indicate switching from the source cell to the target cell, the DAPS switching command includes the first configuration used in the target cell, the first configuration does not exceed the wireless access capability; when the sum of the first configuration and the second configuration exceeds the wireless access capability, communicate with the network device to which the source cell belongs through the third configuration, or release the second configuration; the second configuration The second configuration is the configuration used in the source cell before handover, and the sum of the third configuration and the first configuration does not exceed the wireless access capability; after successfully accessing the target cell through the first configuration, the target cell The network device to which it belongs sends an RRC reconfiguration complete message.
  • the wireless access capability refers to the wireless access capability of the terminal device.
  • the terminal equipment after the terminal equipment receives the DAPS switching command included in the first RRC reconfiguration message, if it is determined that the sum of the configuration of the source cell (ie, the second configuration) and the configuration of the target cell (ie, the first configuration) exceeds the terminal equipment radio access capability, then during the handover process of the terminal device from the source cell to the target cell, the terminal device reduces the configuration of the source cell, so that the sum of the reduced configuration of the source cell (that is, the third configuration) and the configuration of the target cell is equal to The wireless access capability of the terminal equipment is exceeded, so that the terminal equipment can continue to perform DAPS handover instead of initiating RRC re-establishment, which is conducive to ensuring service continuity.
  • the terminal device after the terminal device receives the DAPS handover command included in the first RRC reconfiguration message, if it is determined that the sum of the configuration of the source cell (that is, the second configuration) and the configuration of the target cell (that is, the first configuration) exceeds the After the terminal device releases the configuration of the source cell, it will switch from the source cell to the target cell according to the configuration of the target cell, thereby avoiding service interruption caused by the terminal device initiating RRC re-establishment and ensuring service continuity.
  • the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device, which means that the sum of the configurations related to the wireless access capability of the terminal device in the first configuration and the second configuration exceeds the terminal device's wireless access capability.
  • the wireless access capability of the device includes the number of uplink radio frequency transmission channels used by the terminal device in the target cell, and the second configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the source cell.
  • the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device may mean that the sum of the number of uplink radio frequency transmission channels used by the terminal device in the target cell and the number of uplink radio frequency transmission channels used by the terminal device in the source cell exceeds that of the terminal device
  • the wireless access capability (that is, the maximum number of supported uplink radio frequency transmission channels).
  • the above-mentioned sum of the first configuration and the third configuration does not exceed the wireless access capability of the terminal device, which means that the sum of configurations related to the wireless access capability of the terminal device in the first configuration and the third configuration does not exceed the terminal device's wireless access capability.
  • the wireless access capability of the device includes the number of uplink radio frequency transmission channels used by the terminal device in the target cell, and the third configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the source cell. The sum of the first configuration and the third configuration does not exceed the wireless access capability of the terminal device.
  • the sum of the number of uplink radio frequency transmission channels used by the terminal device in the target cell and the number of uplink radio frequency transmission channels used by the terminal device in the source cell does not exceed The wireless access capability of the terminal device (that is, the maximum number of supported uplink radio frequency transmission channels).
  • the first configuration includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of sounding reference signal (sounding reference signal, SRS) resources, the number of ports of SRS resources, the number of channels The number of state information reference signal (channel state information reference signal, CSI-RS) resources and the number of ports of CSI-RS resources.
  • the second configuration includes one or more of the following: number of uplink radio frequency transmission channels, number of downlink radio frequency reception channels, number of SRS resources, number of ports of SRS resources, number of CSI-RS resources, number of ports of CSI-RS resources .
  • the third configuration includes one or more of the following: number of uplink radio frequency transmission channels, number of downlink radio frequency reception channels, number of SRS resources, number of ports of SRS resources, number of CSI-RS resources, number of ports of CSI-RS resources .
  • the method further includes: receiving a second RRC reconfiguration message, the second RRC The reconfiguration message is used to indicate to release the third configuration.
  • the second RRC reconfiguration message is sent by the network device to which the target cell belongs to the terminal device.
  • the network device to which the source cell belongs when the sum of the first configuration and the second configuration exceeds the wireless access capability, communicate with the network device to which the source cell belongs through a third configuration, or , releasing the second configuration, including: when the sum of the first configuration and the second configuration exceeds the wireless access capability, and the first configuration is lower than the wireless access capability, through the third configuration and the source The network equipment to which the cell belongs communicates.
  • a wireless communication device in a second aspect, may be a terminal device, or a component in the terminal device.
  • the wireless communication device may include various modules or units configured to execute the first aspect and the method in any possible implementation manner of the first aspect.
  • a wireless communication device including a processor.
  • the processor is coupled with the memory, and can be used to execute instructions in the memory, so as to implement the method in the above first aspect and any possible implementation manner of the first aspect.
  • the wireless communication device further includes a memory.
  • the wireless communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the wireless communication device is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the wireless communication device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a wireless communication device including a processing circuit and an interface circuit.
  • the interface circuit is used to couple with the memory outside the wireless communication device, and provides a communication interface for the processing circuit to access the memory; the processing circuit is used to execute the program instructions in the memory, so as to realize the above-mentioned first aspect and the first aspect A method in any of the possible implementations.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any possible implementation manner of the first aspect.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by, for example but not limited to, the receiver
  • the output signal of the output circuit may be, for example but not limited to, output to the transmitter and transmitted by the transmitter
  • the circuit may be the same circuit, which is used as an input circuit and an output circuit respectively at different times.
  • the embodiment of the present application does not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, and may receive signals through the receiver and transmit signals through the transmitter, so as to execute the method in any possible implementation manner of the first aspect.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be set separately from the processor.
  • the memory can be a non-transitory (non-transitory) memory, such as a read-only memory (read only memory, ROM), which can be integrated with the processor on the same chip, or can be respectively arranged in different On the chip, the embodiment of the present application does not limit the type of the memory and the configuration of the memory and the processor.
  • a non-transitory memory such as a read-only memory (read only memory, ROM)
  • ROM read only memory
  • a related data interaction process such as sending indication information may be a process of outputting indication information from a processor
  • receiving capability information may be a process of receiving input capability information from a processor.
  • the data output by the processor may be output to the transmitter, and the input data received by the processor may be from the receiver.
  • the transmitter and the receiver may be collectively referred to as a transceiver.
  • the processing device in the sixth aspect above may be one or more chips.
  • the processor in the processing device may be implemented by hardware or by software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor may be a general-purpose processor, which is implemented by reading software codes stored in a memory, which can Integrated in a processor, it can exist independently of that processor.
  • a computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to perform any of the above-mentioned first aspects.
  • a computer program also referred to as code, or an instruction
  • a computer-readable storage medium stores a computer program (also referred to as code, or instruction) when it is run on a computer, so that any of the above-mentioned first aspects A method in one possible implementation is executed.
  • FIG. 1 is a schematic diagram of a communication system applicable to the wireless communication method provided by the embodiment of the present application;
  • FIG. 2 shows a schematic flowchart of a wireless communication method provided by an embodiment of the present application
  • FIG. 3 shows a schematic flowchart of a wireless communication method provided by an embodiment of the present application
  • FIG. 4 shows a schematic diagram of a wireless communication device provided by an embodiment of the present application
  • Fig. 5 shows a schematic block diagram of a wireless communication device provided by another embodiment of the present application.
  • FIG. 6 shows a schematic diagram of a chip system provided by an embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • 5G Fifth Generation
  • NR New Wireless Access Technology
  • V2X can include vehicle to Internet (vehicle to network, V2N), vehicle to vehicle (vehicle to vehicle, V2V), vehicle to basic Facilities (vehicle to infrastructure, V2I), vehicle to pedestrian (vehicle to pedestrian, V2P), etc.
  • long term evolution-vehicle (LTE-V) vehicle networking, machine type communication (MTC) ), Internet of things (IoT), long term evolution-machine (LTE-M), machine to machine (
  • the network device may be any device with a wireless transceiver function.
  • the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (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), access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception, TRP), etc.
  • 5G such as gNB in NR system, or, transmission Point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNode B, eNB),
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, realizing radio resource control (radio resource control, RRC), service data adaptation protocol stack (service data adaptation protocol, SDAP) ) protocol layer, the function of packet data convergence protocol (PDCP) layer.
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer and physical (physical, PHY) layer.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medi
  • the AAU implements some physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU+AAU.
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the functions of the CU entity can be implemented by one or more entities.
  • the functions of the CU entity can be further divided, for example, the functions of the control plane (control plane, CP) and the functions of the user plane (user plane, UP) can be separated, that is, the CU entity includes the control plane of the CU (CU- CP) entity and CU user plane (CU-UP) entity, the CU-CP entity and CU-UP entity can be coupled with the DU entity to jointly complete the functions of the network device.
  • the CU-CP entity is responsible for the control plane function, mainly including the RRC protocol layer and the PDCP control plane (PDCP control plane, PDCP-C) protocol layer.
  • the PDCP-C protocol layer is mainly responsible for encryption and decryption of data on the control plane, integrity protection, and data transmission.
  • the CU-UP entity is responsible for user plane functions, mainly including SDAP protocol layer and PDCP user plane (PDCP user plane, PDCP-U) protocol layer.
  • the SDAP protocol layer is mainly responsible for mapping the data flow (flow) of the core network to the bearer.
  • the PDCP-U protocol layer is mainly responsible for encryption and decryption of the data plane, integrity protection, header compression, serial number maintenance, data transmission, etc.
  • the network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (eg, frequency domain resources, or spectrum resources) allocated by the network device.
  • the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.), or may belong to a base station corresponding to a small cell (small cell), where the small cell may include: a metro cell, a micro cell , pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the terminal equipment includes user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile terminal, user terminal, terminal, wireless Communication Device, User Agent, or User Device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device , wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security safety), wireless terminals in smart city, wireless terminals in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop Road (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, 5G network
  • wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smartphones, such as: smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the terminal device may also be a terminal device in an Internet of Things (Internet of things, IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect objects with the network through communication technology, so as to realize the intelligent network of man-machine interconnection and object interconnection.
  • This application does not limit the specific form of the terminal device.
  • Fig. 1 shows a schematic diagram of a communication system applicable to a wireless communication method and a wireless communication device according to an embodiment of the present application.
  • the communication system 100 may include at least two network devices, such as the network device 110 and the network device 120 shown in Figure 1; the communication system 100 may also include at least one terminal device, such as the terminal device shown in Figure 1 130. Wherein, the terminal device 130 may be mobile or fixed.
  • Both the network device 110 and the network device 120 are devices capable of communicating with the terminal device 130 through a wireless link, such as a base station or a base station controller.
  • Each network device can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area (cell).
  • Figure 1 exemplarily shows two network devices and one terminal device.
  • the communication system 100 may include at least one network device and other numbers of terminal devices may be included within the coverage of each network device. Examples are not limited to this.
  • Each of the aforementioned communication devices may be configured with multiple antennas.
  • the plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain, and those of ordinary skill in the art can understand that they all include a plurality of components related to signal transmission and reception (such as processors, modulators, multiplexers, etc.) , demodulator, demultiplexer or antenna, etc.). Therefore, the network device and the terminal device can communicate through the multi-antenna technology.
  • the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, to which this embodiment of the present application is not limited.
  • network entities such as a network controller and a mobility management entity, to which this embodiment of the present application is not limited.
  • RRC re-establishment When handover failure, reconfiguration failure, integrity detection failure, radio link failure (radio link failure, RLF) and other situations occur in the terminal device, the terminal device can initiate the RRC re-establishment process.
  • RLF radio link failure
  • the RRC re-establishment process may include the following steps:
  • Step 1 The terminal device sends an RRC re-establishment request message to the re-established cell (or the network device to which the re-established cell belongs).
  • Step 2 Re-establishing the cell allows the request of the terminal equipment, and then sends an RRC re-establishment message to the terminal equipment.
  • Step 3 The terminal device sends an RRC re-establishment complete message to the re-established cell.
  • the re-established cell here may be a cell determined by the terminal device through cell search or detection.
  • a re-established cell may be a cell that satisfies predetermined criteria.
  • predetermined criteria such as the cell selection S criterion in NR protocol technical specification (technical specification, TS) 38.304-f30.
  • the source cell means the cell that provides service for the terminal device before the handover
  • the target cell means the cell that provides service for the terminal device after the handover.
  • the relevant information of the target cell (such as the physical cell identifier (PCI) of the target cell, frequency information, random access resource information required for handover to the target cell, etc.) can be indicated through the RRC reconfiguration message, and the RRC reconfiguration message
  • the configuration message is sent by the network device to which the source cell belongs (ie, the source network device) to the terminal device.
  • Handover can be intra-station handover or inter-station handover.
  • Intra-site handover means that the source cell and the target cell belong to the same network device (such as a base station), where the source cell and the target cell can be the same cell or different cells;
  • inter-site handover means that the source cell and the target cell belong to different Network equipment (such as base stations). This application does not limit this.
  • a cell is a coverage area of a network device
  • a source cell corresponds to a source network device (such as a source base station)
  • a target cell corresponds to a target network device (such as a target base station).
  • DAPS handover In order to ensure zero interruption during the handover process of terminal equipment, DAPS handover is introduced in the communication industry standard.
  • the terminal device disconnects from the source cell after receiving the DAPS handover command from the source network device, and accesses the target cell.
  • the terminal device receives the DAPS handover command sent by the source network device, and then accesses the target cell.
  • the terminal device still maintains communication with the source cell link until the target
  • the network device notifies the terminal device to completely release the configuration of the source cell, and the terminal device stops communication with the source cell and releases the communication link with the source cell.
  • the DAPS switching command is carried in the RRC reconfiguration message sent by the source network device to the terminal device.
  • the handover process of DAPS is similar to the traditional handover process.
  • the source network device decides to perform the handover, and then the source network device sends a handover request to the target network device. Further, the target network device replies a handover confirmation message to the source network device, indicating to accept the handover of the terminal device to the target cell. Further, the source network device sends a DAPS switching command to the terminal device, instructing the terminal device to switch to the target cell. Then, the terminal device maintains the connection of the source cell and the target cell at the same time.
  • the core network After the terminal device successfully accesses the target cell and establishes a new connection with the core network, the core network will switch the downlink data flow to the target network device, and at the same time send an end marker data packet to the source network device. Then, the source network device forwards the data to the target network device. After the target network device receives the end marker message, the target network device can notify the terminal device to release the source cell connection, thereby completing the DAPS handover process.
  • the terminal device will stop sending new uplink data to the source network device.
  • the terminal device After the terminal device successfully releases the connection with the source cell, the terminal device stops all communications with the source network device.
  • the source network device receives a handover success indication message sent by the target network device, and thus the source network device stops sending new downlink data to the terminal device.
  • the source network device Before the terminal device successfully releases the connection with the source cell, the source network device will not send new downlink data to the terminal device, but will send retransmitted downlink data.
  • the terminal device has data transmission with the source network device (or source cell) and the target network device (or target cell) within a period of time.
  • the terminal device and the source network device perform data transmission based on the configuration of the source cell (that is, the second configuration in the following embodiments), and the terminal device and the target network device perform data transmission based on the configuration of the target cell (that is, the first configuration in the following embodiments). transmission.
  • the configuration of the target cell is carried in the RRC reconfiguration message sent by the source network device to the terminal device.
  • the terminal device works based on the configuration of the source cell and the target cell at the same time, it may exceed the radio access capability of the UE, thereby triggering RRC re-establishment, resulting in service interruption of the terminal device.
  • the present application provides a wireless communication method in order to avoid service interruption caused by the sum of the configuration of the source cell and the configuration of the target cell exceeding the wireless access capability of the UE.
  • the terminal device shown in the following embodiments may be replaced with components (such as chips or circuits) configured in the terminal device.
  • the network devices shown in the following embodiments may also be replaced with components (such as chips or circuits) configured in the network devices.
  • the embodiments shown below do not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be executed according to the method provided by the embodiment of the present application method to communicate.
  • the subject of execution of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • FIG. 2 is a schematic flowchart of a method 200 provided by an embodiment of the present application from the perspective of device interaction. As shown in FIG. 2, the method 200 may include S210 to S240, each step will be described in detail below.
  • network device #1 sends a first RRC reconfiguration message.
  • the terminal device receives a first RRC reconfiguration message.
  • the network device #1 is the network device to which the source cell belongs.
  • the first RRC reconfiguration message includes a DAPS handover command, and the DAPS handover command is used to instruct the terminal equipment to handover from the source cell to the target cell.
  • the DAPS switching command is the "daps-Config-r16" information element carried in the first RRC reconfiguration (RRC reconfiguration) message.
  • the DAPS switching command includes first configuration information, where the first configuration information is used to indicate the first configuration.
  • the first configuration is the configuration used by the terminal device in the target cell, or the first configuration is the configuration used by the terminal device to communicate in the target cell, or the first configuration is the configuration provided by network device #2 for the terminal device in the target cell The configuration used for communication.
  • the network device #2 is the network device to which the target cell belongs, and the first configuration information is received by the network device #1 from the network device #2. It should be understood that the first configuration does not exceed the wireless access capability of the terminal device.
  • the first configuration information includes one or more of the following: information on the target cell (such as the PCI of the target cell and frequency information corresponding to the target cell, the cell-radio network temporary identity (cell-radio network) provided by the network device #2 for the terminal device temporary identifier, C-RNTI)), random access channel (random access channel, RACH) resource information required to access the target cell (for example, dedicated RACH resources and/or public RACH resources).
  • information on the target cell such as the PCI of the target cell and frequency information corresponding to the target cell, the cell-radio network temporary identity (cell-radio network) provided by the network device #2 for the terminal device temporary identifier, C-RNTI)
  • random access channel random access channel, RACH resource information required to access the target cell (for example, dedicated RACH resources and/or public RACH resources).
  • the first configuration information may also include more parameters, which is not limited in this embodiment of the present application.
  • the terminal device communicates with the network device #1 through the third configuration.
  • the terminal device when the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device, the terminal device communicates with the network device #1 through the third configuration. Wherein, the sum of the first configuration and the third configuration does not exceed the wireless access capability of the terminal device.
  • the terminal device communicates with the network through the third configuration Device #1 communicates. While the terminal device communicates with the network device #1 through the third configuration, after the terminal device successfully accesses the target cell, it communicates with the network device #2 through the first configuration.
  • the terminal device after the terminal device successfully accesses the target cell and before the terminal device receives the message of releasing the source cell, the terminal device has data transmission and reception between the source cell and the target cell, and the data transmission and reception are between the terminal device and the network device# 1 or non-signaling interaction of network device #2, and the user plane data sent and received by the terminal device in the source cell and the target cell are the same.
  • the sum of the first configuration and the second configuration described in this embodiment exceeds the wireless access capability of the terminal device, and refers to the configuration related to the wireless access capability of the terminal device in the first configuration and the second configuration The sum exceeds the wireless access capability of the terminal device.
  • the first configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the target cell
  • the second configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the source cell
  • the sum of the first configuration and the second configuration exceeds the radio frequency of the terminal device.
  • Access capability can mean that the sum of the number of uplink radio frequency transmission channels used by the terminal device in the target cell and the number of uplink radio frequency transmission channels used by the terminal device in the source cell exceeds the wireless access capability of the terminal device (that is, the maximum supported uplink radio frequency transmission channel number).
  • the sum of the first configuration and the third configuration described in the embodiment of this application does not exceed the wireless access capability of the terminal device, which means that the first configuration and the third configuration are related to the wireless access capability of the terminal device.
  • the sum of the configurations does not exceed the wireless access capability of the terminal device.
  • the first configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the target cell
  • the third configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the source cell
  • the sum of the first configuration and the third configuration does not exceed the number of uplink radio frequency transmission channels of the terminal device.
  • the wireless access capability can mean that the sum of the number of uplink radio frequency transmission channels used by the terminal device in the target cell and the number of uplink radio frequency transmission channels used by the terminal device in the source cell does not exceed the wireless access capability of the terminal device (that is, the maximum supported uplink radio frequency number of transmit channels).
  • the first configuration related to the wireless access capability of the terminal device includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of sounding reference signal (sounding reference signal, SRS) resources The number of ports of SRS resources, the number of channel state information reference signal (channel state information reference signal, CSI-RS) resources, and the number of ports of CSI-RS resources.
  • SRS sounding reference signal
  • the second configuration related to the wireless access capability of the terminal device includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of SRS resources, the number of ports of SRS resources, the number of CSI-RS resources number, and the number of ports of the CSI-RS resource.
  • the third configuration related to the wireless access capability of the terminal device includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of SRS resources, the number of SRS resource ports, and the number of CSI-RS resources. number, and the number of ports of the CSI-RS resource.
  • the second configuration is the configuration used by the terminal device in the source cell before the handover occurs, or the second configuration is the configuration used by the terminal device for communication in the source cell before the handover occurs.
  • the second configuration includes one or more of the following: PCI of the source cell, measurement configuration, mobile control (mobile control) configuration, radio resource configuration, access stratum (access stratum, AS) security configuration, network device #1 is a terminal device Assigned C-RNTI.
  • the radio resource configuration may be radio bearer (radio bearer, RB) configuration or medium access control (medium access control, MAC) main configuration, physical channel configuration, and the like.
  • the third configuration is the configuration used in the source cell when the terminal device performs DAPS handover. Since the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device, the sum of the first configuration and the third configuration does not exceed the wireless access capability of the terminal device. Therefore, compared with the second configuration, the configuration related to the wireless access capability of the terminal device has changed in the third configuration. Specifically, compared with the second configuration, the specification of the configuration related to the wireless access capability of the terminal device is lower in the third configuration.
  • both the third configuration and the second configuration include the number of uplink radio frequency transmission channels used by the terminal device in the source cell, and the number of uplink radio frequency channels used by the terminal device in the source cell included in the third configuration is larger than that of the terminal device included in the second configuration.
  • the number of uplink radio frequency channels used by the source cell is small.
  • the terminal device when the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device, the terminal device reduces the configuration used in the source cell from the second configuration to the third configuration, and the terminal device During the handover process from the source cell to the target cell, communicate with network device #1 through the third configuration.
  • the embodiment of the present application does not limit the timing for the terminal device to determine whether the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device.
  • the terminal device first determines whether the second configuration has fully occupied the wireless access capability of the terminal device, and if the second configuration has fully occupied the wireless access capability of the terminal device, the terminal device receives the first RRC After the DAPS switching command included in the reconfiguration message, it can be directly determined that the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device; if the second configuration does not fully occupy the wireless access capability of the terminal device, the terminal After receiving the DAPS switching command included in the first RRC reconfiguration message, the device determines whether the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device.
  • the second configuration occupies the wireless access capability of the terminal device means that when the terminal device communicates with network device #1 through the second configuration, the terminal device has no ability to support communication with other cells or network devices (such as terminal device There is no capability to support communication with network device #2 in the target cell). Conversely, the fact that the second configuration does not fully occupy the wireless access capability of the terminal device means that when the terminal device communicates with network device #1 through the second configuration, the terminal device still has the ability to support communication with other cells or network devices.
  • the terminal device supports a multi-input multi-output (MIMO) capability of three uplink radio frequency transmission channels (3T for short).
  • MIMO multi-input multi-output
  • the terminal device determines that the second configuration occupies the wireless access capability of the terminal device, and then, after receiving the DAPS switching command included in the first RRC reconfiguration message, the terminal device can directly determine the first configuration The sum of the second configuration and the second configuration exceeds the wireless access capability of the terminal device.
  • the terminal device includes two uplink radio frequency transmission channels (2T for short)
  • the terminal device determines that the second configuration does not fully occupy the wireless access capability of the terminal device.
  • the terminal device After the terminal device receives the DAPS switching command included in the first RRC reconfiguration message, it knows that the first configuration includes 2T, and the terminal device can further determine that the sum of the first configuration and the second configuration is uplink 4 radio frequency transmission channels (referred to as 4T), It exceeds the wireless access capability of the terminal device.
  • the terminal device After the terminal device receives the DAPS switching command included in the first RRC reconfiguration message, it knows that the first configuration includes 2T, and the terminal device can further determine that the sum of the first configuration and the second configuration is uplink 4 radio frequency transmission channels (referred to as 4T), It exceeds the wireless access capability of the terminal device.
  • 4T uplink 4 radio frequency transmission channels
  • the terminal device first determines whether the first configuration has fully occupied the wireless access capability of the terminal device, and if the first configuration does not fully occupy the wireless access capability of the terminal device, the terminal device then determines the first configuration and whether the sum of the second configuration exceeds the wireless access capability of the terminal device.
  • the first configuration does not fully occupy the wireless access capability of the terminal device means that when the terminal device communicates with network device #2 through the first configuration, the terminal device still has the ability to support communication with other cells or network devices.
  • the terminal equipment supports the MIMO capability of 3T.
  • the terminal device determines that the first configuration does not fully occupy the wireless access capability of the terminal device.
  • the terminal device may determine that the sum of the first configuration and the second configuration is 4T, which exceeds the wireless access capability of the terminal device.
  • the terminal device determines whether the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device.
  • the terminal device when the sum of the first specification included in the first configuration and the first specification included in the second configuration exceeds the wireless access capability of the terminal device, in the process of switching the terminal device from the source cell to the target cell , the terminal device communicates with network device #1 through the third configuration. Wherein, the sum of the first specification included in the third configuration and the first specification included in the first configuration does not exceed the wireless access capability of the terminal device.
  • the terminal device changes the first specification used in the source cell from the second configuration included
  • the first specification included in the third configuration is reduced to the first specification included in the third configuration, and during the handover process of the terminal device from the source cell to the target cell, the first specification included in the third configuration communicates with the network device #1.
  • the first specification includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of SRS resources, the number of ports of SRS resources, the number of CSI-RS resources, the number of CSI-RS The port number for the resource.
  • the first configuration includes 2T
  • the second configuration includes 2T.
  • the sum of the first configuration and the second configuration is 4T, which exceeds the wireless access capability of the terminal device, and the terminal device can reduce the number of uplink radio frequency transmission channels used in the source cell to one, that is, the third configuration includes uplink 1 radio frequency transmission channel (referred to as 1T).
  • the third configuration includes 1T
  • the sum of the first configuration and the third configuration is 3T, which does not exceed the wireless access capability of the terminal device.
  • the first configuration when the sum of the first configuration and the third configuration does not exceed the wireless access capability of the terminal device, the first configuration is lower than the wireless access capability of the terminal device. That is to say, the first configuration does not fully occupy the wireless access capability of the terminal device, so that the terminal device is still capable of supporting communication with network device #1 through the third configuration. Therefore, in S220, when the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device and the first configuration is lower than the wireless access capability of the terminal device, when the terminal device switches from the source cell to the target cell In the process, the terminal device communicates with the network device #1 through the third configuration.
  • the terminal device sends an RRC reconfiguration complete (RRC reconfiguration complete) message.
  • RRC reconfiguration complete RRC reconfiguration complete
  • network device #2 receives the RRC reconfiguration complete message.
  • the terminal device after the terminal device successfully accesses the target cell, the terminal device sends an RRC reconfiguration complete message to network device #2.
  • the terminal device receives a second RRC reconfiguration message.
  • network device #2 sends a second RRC reconfiguration message.
  • network device #2 sends a second RRC reconfiguration message to the terminal device, and the second RRC reconfiguration message is used to indicate the release of the source cell, that is, to indicate the release of the first Three configurations.
  • the terminal device after the terminal device receives the DAPS handover command included in the first RRC reconfiguration message, if it is determined that the sum of the configuration of the source cell and the configuration of the target cell exceeds the wireless access capability of the terminal device, the terminal device During the handover process from the source cell to the target cell, the terminal device reduces the configuration of the source cell so that the sum of the reduced configuration of the source cell and the configuration of the target cell does not exceed the wireless access capability of the terminal device, thereby preventing the terminal device from initiating an RRC resumption.
  • the business interruption caused by the establishment is conducive to ensuring the continuity of the business.
  • FIG. 3 is a schematic flowchart of a method 300 provided by an embodiment of the present application from the perspective of device interaction. As shown in FIG. 3, the method 300 may include S310 to S330, each step will be described in detail below.
  • network device #1 sends a first RRC reconfiguration message.
  • the terminal device receives a first RRC reconfiguration message.
  • S310 is the same as S210 in the method 200, and for the sake of brevity, this embodiment of the present application will not describe it in detail.
  • the terminal device releases the second configuration.
  • the release of the second configuration by the terminal device may be understood as the terminal device deleting the stored second configuration, or the terminal device releasing the link between the terminal device and the source cell, or the terminal device releasing the connection with the network device #1. It can be understood that after the terminal device releases the second configuration, the terminal device will not have data interaction with the network device #1 until the connection between the terminal device and the network device #1 is re-established.
  • the sum of the first configuration and the second configuration described in this embodiment exceeds the wireless access capability of the terminal device, and refers to the configuration related to the wireless access capability of the terminal device in the first configuration and the second configuration The sum exceeds the wireless access capability of the terminal device.
  • the first configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the target cell
  • the second configuration includes the number of uplink radio frequency transmission channels used by the terminal device in the source cell.
  • the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device may mean that the sum of the number of uplink radio frequency transmission channels used by the terminal device in the target cell and the number of uplink radio frequency transmission channels used by the terminal device in the source cell exceeds that of the terminal device
  • the wireless access capability (that is, the maximum number of supported uplink radio frequency transmission channels).
  • the embodiment of the present application does not limit the timing for the terminal device to determine whether the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device.
  • the terminal device first determines whether the second configuration has fully occupied the wireless access capability of the terminal device, and if the second configuration has fully occupied the wireless access capability of the terminal device, the terminal device receives the first RRC After the DAPS switching command included in the reconfiguration message, it can be directly determined that the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device; if the second configuration does not fully occupy the wireless access capability of the terminal device, the terminal After receiving the DAPS switching command included in the first RRC reconfiguration message, the device determines whether the sum of the first configuration and the second configuration exceeds the wireless access capability of the terminal device. For more related descriptions, refer to S220 above.
  • the terminal device first determines whether the first configuration has fully occupied the wireless access capability of the terminal device.
  • the sum of the configuration and the second configuration exceeds the wireless access capability of the terminal device; if the first configuration does not fully occupy the wireless access capability of the terminal device, the terminal device then determines whether the sum of the first configuration and the second configuration exceeds The wireless access capability of terminal equipment.
  • the first configuration occupies the wireless access capability of the terminal device means that when the terminal device communicates with network device #2 through the first configuration, the terminal device has no ability to support communication with other cells or network devices (such as terminal device There is no capability to support communication with network device #1 in the source cell).
  • the terminal device has no ability to support communication with other cells or network devices (such as terminal device There is no capability to support communication with network device #1 in the source cell).
  • the terminal device determines whether the sum of the first configuration and the second configuration exceeds the radio access capability of the terminal device.
  • the first specification includes one or more of the following: the number of uplink radio frequency transmission channels, the number of downlink radio frequency reception channels, the number of SRS resources, the number of ports of SRS resources, the number of CSI-RS resources, the number of CSI-RS The port number for the resource.
  • the first specification including the number of downlink radio frequency receiving channels as an example.
  • the terminal device supports the MIMO capability of 4 downlink radio frequency receiving channels (abbreviated as 4R)
  • the first configuration includes 4R
  • the second configuration includes downlink 2 radio frequency receiving channels (abbreviated as 2R).
  • the sum of the first configuration and the second configuration is 6 downlink radio frequency receiving channels (abbreviated as 6R), which exceeds the wireless access capability of the terminal device, and the terminal device releases the second configuration.
  • the terminal device sends an RRC reconfiguration complete message.
  • network device #2 receives the RRC reconfiguration complete message.
  • the terminal device After releasing the second configuration, the terminal device continues to switch from the source cell to the target cell according to the first configuration. Further, in S330, after the terminal device successfully accesses the target cell, it sends an RRC reconfiguration complete message to network device #2, and network device #2 is the network device to which the target cell belongs.
  • the terminal device after the terminal device receives the DAPS handover command included in the first RRC reconfiguration message, if it is determined that the sum of the configuration of the source cell and the configuration of the target cell exceeds the radio access capability of the terminal device, the terminal device releases the After the configuration of the source cell, switch from the source cell to the target cell according to the configuration of the target cell, so as to prevent the terminal device from initiating RRC resumption when the sum of the configuration of the source cell and the configuration of the target cell exceeds the wireless access capability of the terminal device.
  • the business interruption caused by the establishment is conducive to ensuring the continuity of the business.
  • the terminal device and/or the network device may perform some or all of the steps in the embodiments. These steps or operations are merely examples, and other operations or modifications of various operations may also be performed in the embodiment of the present application. In addition, each step may be performed in a different order presented in each embodiment, and it may not be necessary to perform all operations in the embodiment of the present application. Moreover, the sequence numbers of the steps do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.
  • the wireless communication method provided by the embodiment of the present application is described in detail with reference to FIG. 2 to FIG. 3 .
  • the wireless communication device provided by the embodiment of the present application will be described in detail with reference to FIG. 4 to FIG. 6 .
  • Fig. 4 is a schematic block diagram of a wireless communication device provided by an embodiment of the present application.
  • the communication device 1000 may include a processing unit 1100 and a transceiver unit 1200 .
  • the communication apparatus 1000 may correspond to the terminal device in the above method embodiment, for example, may be a terminal device, or a component (such as a chip or a chip system, etc.) configured in the terminal device.
  • the communication device 1000 may correspond to the terminal device in the methods 200 to 300 according to the embodiment of the present application, and the communication device 1000 may include a terminal device for performing the method 200 in FIG. 2 or the method 300 in FIG. 3 The unit of method to execute. Moreover, each unit in the communication device 1000 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding flow of the method 200 in FIG. 2 or the method 300 in FIG. 3 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the transceiver unit 1200 in the communication device 1000 can be implemented through an input/output interface, and the processing unit 1100 in the communication device 1000 can be implemented through the chip or chip Implementations such as processors, microprocessors, or integrated circuits integrated on a system.
  • the communication apparatus 1000 may correspond to the network device in the above method embodiment, for example, may be a network device, or a component (such as a chip or a chip system, etc.) configured in the network device.
  • the communication device 1000 may correspond to network device #1 in the methods 200 to 300 according to the embodiments of the present application, and the communication device 1000 may include a Elements of the method performed by network device #1.
  • each unit in the communication device 1000 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding flow of the method 200 in FIG. 2 or the method 300 in FIG. 3 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the communication device 1000 may correspond to the network device #2 in the methods 200 to 300 according to the embodiment of the present application, and the communication device 1000 may include a method for executing the method 200 in FIG. 2 or the method 300 in FIG. Elements of the method performed by network device #2.
  • each unit in the communication device 1000 and the above-mentioned other operations and/or functions are respectively intended to implement the corresponding flow of the method 200 in FIG. 2 or the method 300 in FIG. 3 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the transceiver unit 1200 in the communication device 1000 can be implemented through an input/output interface, and the processing unit 1100 in the communication device 1000 can be implemented through the chip or chip Implementations such as processors, microprocessors, or integrated circuits integrated on a system.
  • Fig. 5 is a schematic block diagram of a wireless communication device according to another embodiment of the present application.
  • the communication device 2000 shown in FIG. 5 may include: a memory 2100 , a processor 2200 , and a communication interface 2300 .
  • the memory 2100, the processor 2200, and the communication interface 2300 are connected through an internal connection path, the memory 2100 is used to store instructions, and the processor 2200 is used to execute the instructions stored in the memory 2100 to control the input/output interface to receive/send messages arts.
  • the memory 2100 may be coupled to the processor 2200 through an interface, or may be integrated with the processor 2200 .
  • the above-mentioned communication interface 2300 uses a transceiver device such as but not limited to a transceiver to implement communication between the communication device 2000 and other devices or communication networks.
  • the above-mentioned communication interface 2300 may also include an input/output interface (input/output interface).
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 2200 or instructions in the form of software.
  • the methods 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 software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory 2100, and the processor 2200 reads the information in the memory 2100, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor.
  • a portion of the processor may also include non-volatile random access memory.
  • the processor may also store device type information.
  • FIG. 6 is a schematic diagram of a chip system according to an embodiment of the present application.
  • the chip system here may also be a system composed of circuits.
  • the chip system 3000 shown in FIG. 6 includes: a logic circuit 3100 and an input/output interface (input/output interface) 3200, the logic circuit is used to couple with the input interface, and transmit data through the input/output interface (for example, DAPS switching command) to execute the methods described in Figures 2 to 3.
  • the embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in any one of the above method embodiments.
  • the above processing device may be one or more chips.
  • the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC), or a system chip (system on chip, SoC). It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller unit) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • microcontroller micro controller unit
  • PLD programmable logic device
  • the present application also provides a computer program product, the computer program product including: computer program code, when the computer program code is run on the computer, the computer is made to execute the computer program described in Fig. 2 to Fig. 3 .
  • the method executed by the terminal device in the embodiment is illustrated.
  • the present application also provides a computer-readable storage medium, the computer-readable storage medium stores program codes, and when the program codes are run on a computer, the computer is made to execute The method executed by the terminal device in the embodiment shown in 3.
  • the present application also provides a system, which includes the foregoing one or more terminal devices and/or network devices (network device #1 and network device #2).
  • the terminal equipment in the above-mentioned various device embodiments corresponds completely to the terminal equipment in the method embodiments, and the corresponding steps are performed by corresponding modules or units, for example, the transceiver unit (transceiver) performs the steps of receiving or sending in the method embodiments, except for sending , receiving and other steps may be performed by a processing unit (processor).
  • a processing unit for the functions of the specific units, reference may be made to the corresponding method embodiments.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be components.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
  • packets of data e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • each functional unit may be fully or partially implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer instructions (programs).
  • program instructions program instructions
  • the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer software product is stored in a storage medium and includes several instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

La présente invention concerne un procédé de communication sans fil et un appareil de communication sans fil. Le procédé comprend les étapes suivantes: la réception d'un premier message de reconfiguration de ressources de commande radio (RRC) en provenance d'un périphérique de réseau auquel une cellule source appartient, le premier message de reconfiguration de ressources RRC comprenant une commande de transfert intercellulaire de pile de protocoles actifs doubles (DAPS), la commande de transfert intercellulaire de pile DAPS étant utilisée pour ordonner un transfert depuis la cellule source vers une cellule cible, et la commande de transfert intercellulaire de pile DAPS comprenant une première configuration utilisée dans la cellule cible; lorsque la somme de la première configuration et d'une deuxième configuration dépasse la capacité d'accès sans fil, la communication, au moyen d'une troisième configuration, avec le périphérique de réseau auquel la cellule source appartient, ou la libération de la deuxième configuration; la deuxième configuration étant une configuration utilisée dans la cellule source avant le transfert, et la somme de la troisième configuration et de la première configuration ne dépassant pas la capacité d'accès sans fil; après avoir accédé avec succès à la cellule cible au moyen de la première configuration, la transmission d'un message d'achèvement de reconfiguration de ressources RRC à un périphérique de réseau auquel appartient la cellule cible. Selon la présente invention, une interruption de service provoquée par la somme de la configuration de la cellule source et de la configuration de la cellule cible dépassant la capacité d'accès sans fil peut être évitée.
PCT/CN2021/121791 2021-09-29 2021-09-29 Procédé de communication sans fil et appareil de communication sans fil WO2023050181A1 (fr)

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CN202180101149.7A CN117751623A (zh) 2021-09-29 2021-09-29 无线通信方法及无线通信装置

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