WO2020191554A1 - 无线通信的方法、终端设备和网络设备 - Google Patents

无线通信的方法、终端设备和网络设备 Download PDF

Info

Publication number
WO2020191554A1
WO2020191554A1 PCT/CN2019/079356 CN2019079356W WO2020191554A1 WO 2020191554 A1 WO2020191554 A1 WO 2020191554A1 CN 2019079356 W CN2019079356 W CN 2019079356W WO 2020191554 A1 WO2020191554 A1 WO 2020191554A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
terminal device
network
terminal
signaling
Prior art date
Application number
PCT/CN2019/079356
Other languages
English (en)
French (fr)
Inventor
尤心
卢前溪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to ES19921034T priority Critical patent/ES2950979T3/es
Priority to CN201980079887.9A priority patent/CN113316947A/zh
Priority to CN202111056939.6A priority patent/CN113747532B/zh
Priority to CA3134505A priority patent/CA3134505A1/en
Priority to EP19921034.5A priority patent/EP3930362B1/en
Priority to PCT/CN2019/079356 priority patent/WO2020191554A1/zh
Priority to JP2021556923A priority patent/JP7312846B2/ja
Priority to KR1020217032265A priority patent/KR20210138648A/ko
Priority to BR112021018878A priority patent/BR112021018878A2/pt
Publication of WO2020191554A1 publication Critical patent/WO2020191554A1/zh
Priority to US17/479,772 priority patent/US20220007449A1/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0079Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0058Transmission of hand-off measurement information, e.g. measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • 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
    • H04W36/16Performing reselection for specific purposes
    • H04W36/18Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/25Maintenance of established connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular to a wireless communication method, terminal device, and network device.
  • the New Radio (NR) system supports cell handover, for example, when a terminal device moves from one cell to another, or due to wireless communication service load adjustment, activation operation and maintenance, equipment failure, etc., in order to ensure continuous communication
  • the quality and service quality need to transfer the communication link between the terminal device and the source base station to the target base station, that is, perform the handover process.
  • the terminal device fails to access the target base station, the terminal device also needs to initiate a radio resource control (Radio Resource Control, RRC) connection re-establishment process to perform normal data transmission, which increases the data transmission delay.
  • RRC Radio Resource Control
  • the embodiments of the present application provide a wireless communication method, terminal device, and network device, which are beneficial to avoid data interruption during the handover process, thereby reducing data transmission delay.
  • a wireless communication method including: a terminal device sends instruction information to a first network device, where the instruction information is used to indicate that the terminal device fails to switch to the second network device.
  • a wireless communication method including: a first network device determines that a terminal device fails to switch to a second network device; and the first network device maintains a connection with the terminal device.
  • a terminal device configured to execute the foregoing first aspect or any possible implementation of the first aspect.
  • the terminal device includes a unit for executing the foregoing first aspect or any possible implementation of the first aspect.
  • a network device configured to execute the foregoing second aspect or any possible implementation of the second aspect.
  • the network device includes a unit for executing the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • a terminal device in a fifth aspect, includes a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a network device in a sixth aspect, includes a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation modes.
  • a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or any of the implementations thereof method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program product including computer program instructions, which cause a computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program which when running on a computer, causes the computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the terminal device after the terminal device fails to access the target network device, it does not need to initiate the RRC connection re-establishment process. Instead, it can send indication information to the source network device to indicate that the terminal device fails to access the target network device, and the terminal The device maintains the connection with the source network device, so that the source network device can learn the connection status of the terminal device, and further, the source network device can continue to communicate with the terminal device using the established connection, Thus, the data transmission delay can be reduced.
  • Fig. 1 shows a schematic diagram of an application scenario of an embodiment of the present application.
  • Figure 2 shows a schematic interaction diagram of a handover mode.
  • Fig. 3 shows a schematic interaction diagram of another switching mode.
  • Fig. 4 shows a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 5 shows a schematic interaction diagram of a wireless communication method according to an embodiment of the present application.
  • FIG. 6 shows a schematic interaction diagram of a wireless communication method according to another embodiment of the present application.
  • FIG. 7 shows a schematic flowchart of a wireless communication method according to another embodiment of the present application.
  • FIG. 8 shows a schematic block diagram of a terminal device according to an embodiment of the present application.
  • Fig. 9 shows a schematic block diagram of a network device according to an embodiment of the present application.
  • Fig. 10 shows a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 shows a schematic block diagram of a chip of an embodiment of the present application.
  • Fig. 12 shows a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • Fig. 1 is a schematic structural diagram of a communication system 100 to which an embodiment of the present application is applied.
  • the terminal device 110 is connected to the first network device 130 under the first communication system and the second network device 120 under the second communication system.
  • the first network device 130 is a Long Term Evolution (Long Term Evolution).
  • the second network device 120 is a network device under a New Radio (NR).
  • NR New Radio
  • the first network device 130 and the second network device 120 may include multiple cells.
  • FIG. 1 is an example of a communication system in an embodiment of the present application, and the embodiment of the present application is not limited to that shown in FIG. 1.
  • the communication system to which the embodiment of the present application is adapted may include at least multiple network devices under the first communication system and/or multiple network devices under the second communication system.
  • the system 100 shown in FIG. 1 may include one main network device under the first communication system and at least one auxiliary network device under the second communication system. At least one auxiliary network device is respectively connected to the one main network device to form multiple connections, and is connected to the terminal device 110 to provide services for it. Specifically, the terminal device 110 may simultaneously establish a connection through the main network device and the auxiliary network device.
  • connection established between the terminal device 110 and the main network device is the main connection
  • connection established between the terminal device 110 and the auxiliary network device is the auxiliary connection.
  • the control signaling of the terminal device 110 may be transmitted through the main connection
  • the data of the terminal device 110 may be transmitted through the main connection and the auxiliary connection at the same time, or may be transmitted only through the auxiliary connection.
  • first communication system and the second communication system in the embodiment of the present application are different, but the specific types of the first communication system and the second communication system are not limited.
  • the first communication system and the second communication system may be various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD) ), Universal Mobile Telecommunication System (UMTS), etc.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the main network device and the auxiliary network device may be any access network device.
  • the access network device may be a base station (Base Transceiver) in the Global System of Mobile Communications (GSM) system or Code Division Multiple Access (CDMA). Station, BTS), it can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system (Evolutional Node B, eNB or eNodeB).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Station, BTS can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system,
  • the access network device may also be a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in an NR system, or a cloud radio access network (Cloud
  • NG RAN Next Generation Radio Access Network
  • gNB base station
  • Cloud Cloud
  • the radio controller in Radio Access Network, CRAN, or the access network device can be a relay station, access point, in-vehicle device, wearable device, or in the future evolution of Public Land Mobile Network (PLMN) Network equipment, etc.
  • PLMN Public Land Mobile Network
  • the first network device 130 is taken as the main network device, and the second network device 120 is taken as an auxiliary network device as an example.
  • the first network device 130 may be an LTE network device, and the second network device 120 may be an NR network device. Or, the first network device 130 may be an NR network device, and the second network device 120 may be an LTE network device. Or both the first network device 130 and the second network device 120 may be NR network devices. Or the first network device 130 may be a GSM network device, a CDMA network device, etc., and the second network device 120 may also be a GSM network device, a CDMA network device, etc. Or the first network device 130 may be a Macrocell, and the second network device 120 may be a Microcell, Picocell, Femtocell, or the like.
  • the terminal device 110 may be any terminal device, and the terminal device 110 includes but is not limited to:
  • wired lines such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and/or another data connection/network; and/ Or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters; and/or another terminal device
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • digital TV networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal” or a "mobile terminal”.
  • Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment (for example, The cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • Enhance Mobile Broadband targets users to obtain multimedia content, services, and data, and its demand is growing rapidly.
  • eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, the differences in capabilities and requirements are relatively large. Therefore, detailed analysis can be combined with specific deployment scenarios.
  • URLLC Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
  • the typical features of massive machine type of communication (mMTC) include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
  • the NR system supports the handover process.
  • the entire handover process is divided into the following three stages:
  • Handover preparation stage including measurement control and reporting, handover request and confirmation.
  • Handover execution phase The UE immediately executes the handover process after receiving the handover command, that is, the UE disconnects the source cell and connects to the target cell (such as performing random access, sending (Radio Resource Control, RRC)).
  • the handover is complete Message to the target base station, etc.); SN state transfer, data forwarding.
  • the handover preparation phase (201-205) may include:
  • the source base station triggers the terminal device to perform neighboring cell measurement, so that the terminal device can measure the neighboring cell and report the measurement result to the source base station.
  • the source base station evaluates the measurement results reported by the terminal device and decides whether to trigger a handover.
  • the source base station decides to trigger a handover, it can send a handover request to the target base station.
  • the target base station after receiving the handover request sent by the source base station, the target base station can start admission according to the service information carried by the source base station, and perform wireless resource configuration.
  • the target base station sends a handover request confirmation message to the source base station, and returns the admission result and wireless resource configuration information in the target base station to the source base station. At this point, the handover preparation phase is complete.
  • the second stage, the handover execution stage (206-208) may include:
  • the terminal device can be triggered to perform handover.
  • the source base station can forward the buffered data, the data packet in transit, the system serial number of the data, etc. to the target base station. And, the target base station can buffer the data received from the source base station
  • the terminal device can disconnect from the source base station and establish synchronization with the target base station.
  • the terminal device synchronizes to the target base station. At this point, the switching execution phase is complete.
  • the third stage, the handover completion stage (209-212) can include:
  • the target base station sends a path switching request to a mobility management function (Access and Mobility Management Function, AMF).
  • AMF Access and Mobility Management Function
  • the AMF after receiving the path switching request of the target base station, the AMF performs path switching with the User Plane Function (UPF) to clear the path mark of the user plane of the source base station.
  • UPF User Plane Function
  • the AMF may send a path switching confirmation message to the target base station.
  • the target base station sends a terminal device context release message to the source base station to notify the source base station that the handover is successful, and trigger the source base station terminal device context. At this point, the switch is complete.
  • the terminal device immediately starts the T304 timer after receiving the handover command, and starts downlink synchronization to the target cell, obtains the MIB information of the target cell, and then initiates random access. During the random access process, multiple preamble retransmissions are allowed until the random access is successful. Further, if the T304 timer expires, indicating that the handover fails, the terminal device can directly trigger the RRC connection re-establishment process.
  • the terminal device performs handover to the target cell (that is, triggers the random access process and sends a handover complete message) when determining that the conditions related to the target cell meet the configured conditions, avoiding High-speed movement into the poor coverage area is too late or unable to send measurement reports and receive handover commands.
  • the handover process based on conditional triggering may be as shown in FIG. 3, and the handover process based on conditional triggering includes:
  • the source base station sends measurement configuration information to the terminal device.
  • the terminal device sends a measurement report to the source base station
  • the source base station and the target base station exchange handover preparation information
  • the source base station sends a handover command to the terminal device.
  • the handover command includes condition information for the cell or beam.
  • the terminal device synchronizes with the target base station (that is, the terminal device accesses the target base station).
  • FIG. 4 is a schematic flowchart of a wireless communication method 400 according to an embodiment of the application.
  • the terminal device sends instruction information to the first network device, where the instruction information is used to indicate that the terminal device fails to switch to the second network device.
  • the first network device may be the network device currently connected to the terminal device, that is, the source network device
  • the second network device is the network device to be accessed by the terminal device, that is, the target network device.
  • the indication information may only indicate that the terminal device fails to access the second network device.
  • the first network device may consider the terminal The device maintains the connection with the first network device, so that the first network device can restore the connection with the terminal device.
  • the instruction information may indicate that the terminal device fails to access the second network device, and the terminal device maintains a connection with the first network device, when the first network device receives the instruction information , The first network device can determine that the terminal device fails to access the second network device, and the terminal device maintains the connection with the first network device, so that the first network device can resume the connection with the terminal device The connection between.
  • whether the terminal device fails to access the second network device and whether the terminal device maintains the connection with the first network device can be combined to indicate, for example, the above two pieces of information can be indicated by one indication message, or they can be indicated separately
  • two indication messages are used to indicate the above two pieces of information respectively, or only one of the pieces of information may be indicated, and the other piece of information may be determined based on the information.
  • the first network device may consider that the terminal device maintains the connection with the first network device; or only instructs whether the terminal device maintains the connection with the first network device, the terminal device may Whether the terminal device maintains the connection with the first network device, determine whether the terminal device fails to access the second network device, for example, if the terminal device maintains the connection with the first network device, the first physical device It can be determined that the terminal device has failed to access the second network device. Otherwise, the first network device can determine that the terminal device has successfully accessed the second network device.
  • the embodiment of the present application does not limit the specific instruction mode. In the following, the instruction The information indicating that the terminal device fails to access the second network device will be described as an example, but the embodiment of the present application should not constitute any limitation.
  • the terminal device fails to access the target network device, it does not need to initiate the RRC connection re-establishment process, but can send indication information to the source network device to indicate that the terminal device fails to access the target network device, and the terminal device keeps In this way, the source network device can learn the connection status of the terminal device. Further, the source network device can quickly restore the connection with the terminal device, that is, the source network device The device can continue to use the previously established connection with the terminal device to communicate, thereby avoiding data transmission interruption and reducing data transmission delay.
  • the terminal device may notify the first network device through display signaling that the terminal device fails to access the second network device.
  • the indication information is included in at least one of the following signaling:
  • the terminal device may send RRC signaling to the first network device, and the indication information may be included in the RRC signaling.
  • the indication information may be carried in reserved bits of the RRC signaling, or It is also possible to add a new field to the RRC signaling to carry the indication information.
  • the embodiment of the present application does not limit the specific bearing mode.
  • the terminal device may send a Media Access Control (MAC) control element (CE) to the first network device, where the MAC CE includes the indication information, optionally,
  • the indication information may be carried in reserved bits or padding bits of the MAC CE, or a new field may be added to the MAC CE to carry the indication information.
  • the embodiment of the present application does not limit the specific bearer mode.
  • the terminal device may send uplink control information (Uplink Control Information, UCI) to the first network device, and the UCI includes the indication information.
  • UCI Uplink Control Information
  • the indication information may be carried in the UCI In the reserved bits, or a new field may also be added to the reserved bits to carry the indication information.
  • the embodiment of the present application does not limit the specific bearing mode.
  • the terminal device may include the indication information in other display signaling (for example, other uplink control signaling), which is not limited in this embodiment of the application.
  • the signaling used to carry the indication information may be newly-added signaling, for example, newly-added RRC signaling, newly-added MAC CE, or newly-added UCI, etc.
  • the newly added signaling is used to indicate to the source network device that the terminal device fails to switch to the target network device.
  • the signaling used to carry the indication information may also be existing signaling, for example, existing RRC signaling.
  • the RRC reconfiguration is complete RRC messages such as messages; or existing MAC CE, for example, scheduling request (Scheduling Request, SR) or buffer status report (Buffer Status Report, BSR), etc.; or existing UCI, etc.
  • the terminal device may also notify the first network device through implicit signaling that the terminal device fails to access the second network device.
  • the implicit signaling may be uplink control signaling, for example, uplink RRC message, MAC CE or UCI, that is, the indication information may be uplink RRC message, MAC CE or UCI.
  • the uplink RRC message may be an RRC reconfiguration complete message or other RRC messages, which are not limited in the embodiment of the present application.
  • the MAC CE may be a MAC CE sent by a terminal device such as an SR or a BSR to the network device, which is not limited in the embodiment of the present application.
  • the implicit signaling may be uplink data, that is, the indication information may be uplink data.
  • the terminal device does not send uplink RRC messages or uplink data to the source network device. If during the handover process, the first network device receives the uplink RRC message or uplink data sent by the terminal device, the The first network device can consider that the terminal device failed to switch to the target network device and fall back to the source network device, that is, the first network device can continue to use the previously established connection with the terminal device to communicate without having to restart establish connection.
  • the method further includes:
  • the terminal device receives a handover command (handover command) sent by the first network device.
  • the switching command may be used to instruct the terminal device to switch to the second network device.
  • the handover command may also indicate the type of handover, for example, eMBB-based handover, non-split bearer-based handover, or zero-interruption (0ms interruption)-based handover, etc.
  • the terminal device maintains the connection with the source network device and at the same time initiates handover to the target network device.
  • the uplink control signaling or the uplink data may be sent after the terminal device receives the handover command sent by the first network device, for example, the uplink control signaling or The uplink data may be sent during the switching process of the terminal device to the second network device, or may also be sent after the terminal device fails to switch to the second network device.
  • the sending of the upstream data is taken as an example.
  • the upstream data may be sent immediately after receiving the switching command of the first network device, or may also be sent within a period of time after receiving the switching command.
  • the period of time may be implemented by a timer.
  • the start condition of the timer may be the reception of the handover command
  • the duration of the timer may be based on the duration and/or duration of the terminal device accessing the second network device. If the effective time of the resource used by the terminal device to access the second network device is determined, the terminal device is performing a handover process to the second network device within the duration of the timer. If in this process, the terminal When the device sends uplink data to the first network device, it can be considered that the terminal device fails to switch to the second network device and falls back to the first network device.
  • the timer may be implemented using an existing T304 timer.
  • T304 timer For a detailed description of the T304 timer, refer to the related description of the embodiment shown in FIG. 2.
  • the terminal device during the process of the terminal device being switched to the second network device, the terminal device maintains the connection with the first network device. In this way, if the terminal device fails to switch to the second target device, the terminal device The device can also fall back to the first network device and continue to use the established connection with the first network device for communication, which is beneficial to avoid interruption of data transmission of the terminal device.
  • the terminal device maintaining the connection with the first network device may include:
  • the terminal device maintains a radio bearer connection with the first network device.
  • the terminal device can maintain the connection of the radio bearer, and continue to use the previously established radio bearer to communicate with the first network device.
  • the radio bearers may include signaling radio bearers (SRB) and/or data radio bearers (DRB).
  • SRB signaling radio bearers
  • DRB data radio bearers
  • the terminal device maintaining the connection with the first network device may include:
  • the terminal device suspends the radio bearer connection with the first network device.
  • the terminal device may continue to maintain the connection of the radio bearer, but suspend using the radio bearer to communicate with the first network device.
  • the terminal device can maintain the SRB connection with the first network device while maintaining the DRB connection with the first network device, that is, the terminal device can continue to use SRB to perform signaling interaction with the first network device, and continue to use DRB Perform data interaction with the first network device.
  • the terminal device can maintain the SRB connection with the first network device, and at the same time suspend the DRB connection with the first network device, that is, the terminal device can continue to use SRB to perform signaling interaction with the first network device, and suspend the use of DRB Perform data interaction with the first network device.
  • the terminal device can suspend the SRB connection with the first network device while maintaining the DRB connection with the first network device, that is, the terminal device can suspend the use of SRB to perform signaling interaction with the first network device, and continue to use DRB Perform data interaction with the first network device.
  • the connection of which radio bearers is suspended may be pre-configured, or may be agreed with the source network device, or may be As agreed in the protocol, for example, it may be pre-configured to suspend the SRB connection and maintain the DRB connection to ensure real-time data transmission, or maintain the SRB connection and the DRB connection at the same time, which is not limited in the embodiment of the application.
  • the first network device may determine that the terminal device falls back to the first network device, and further, the first network device The device can resume the suspended radio bearer connection. For example, if the SRB connection is suspended, the first network device can resume the SRB connection between the terminal device and the first network device.
  • the method 400 may further include:
  • the terminal device performs a radio link monitoring RLM on the first network device to determine the wireless link condition of the first network device.
  • the terminal device may determine whether to switch to the first network device according to the wireless link condition of the first network device.
  • the terminal device determines to switch to the first network device.
  • the terminal device performs radio link monitoring RLM on the first network device includes: before satisfying one of the following conditions, the terminal device continuously performs RLM on the first network device:
  • the terminal device successfully sends a message 1 (MSG1, or preamble sequence) for random access to the second network device;
  • the terminal device successfully receives the message 2 (MSG2, or random access response) for random access sent by the second network device;
  • the terminal device successfully sends a message 3 (MSG3) for random access to the second network device;
  • the terminal device successfully receives the message 4 (MSG4) for random access sent by the second network device.
  • the terminal device successfully sends MSG1 or MSG3, or the terminal device successfully receives MSG2 or MSG3, it can be considered that the terminal device may successfully access the second network device. In this case, it can stop connecting to the first network
  • the device performs RLM. Before that, the terminal device may fail to access the second network device. That is, the terminal device may need to fall back to the first network device. Therefore, the first network device needs to be Perform RLM to determine whether the first network device meets the access conditions.
  • the terminal device may continue to perform RLM on the first network device before successfully sending MSG1 or successfully receiving MSG2.
  • the method 400 further includes:
  • the terminal device receives a handover command sent by the first network device, where the handover command includes an identifier of at least one target network device and an access condition corresponding to the at least one target network device, wherein the at least one target network device
  • the device includes the second network device.
  • the access condition corresponding to the at least one target network device may be condition information of a cell and/or beam.
  • the terminal device can measure the channel quality of the at least one target network device to determine whether the corresponding access condition is satisfied, and if the corresponding access condition is satisfied, the terminal device can initiate a random access process to the target network device .
  • the target network device is the second network device, and the terminal device may send the indication information to the first network device when random access to the second network device fails, Instruct the terminal device to fail to switch to the second network device.
  • the terminal device after the terminal device fails to access the target network device, it does not need to initiate the RRC connection re-establishment process, but can send indication information to the source network device to indicate that the terminal device fails to access the target network device. And the terminal device maintains the connection with the source network device, so that the source network device can learn the connection status of the terminal device. Further, the source network device can quickly restore the connection with the terminal device. Connection, that is, the source network device can continue to use the previously established connection with the terminal device to communicate, thereby avoiding data transmission interruption and reducing data transmission delay.
  • the embodiment shown in Figure 5 can be applied to various handover scenarios, such as eMBB-based handover, non-split bearer-based handover, or zero-interruption (0ms interruption)-based handover, etc., as shown in Figure 5
  • the method may include the following steps:
  • the 51 to 55 may correspond to the 201 to 205 described in FIG. 2.
  • the source base station sends a handover command to the terminal device for instructing the terminal device to switch to the target base station.
  • the terminal device maintains the connection with the source base station and synchronizes to the target base station.
  • the terminal device may maintain the connection with the radio bearer of the source base station, or suspend the connection with the radio bearer of the source base station.
  • the terminal device can continue to use SRB to perform signaling interaction with the source base station, and suspend using DRB to perform data interaction with the source base station.
  • the terminal device may continue to use SRB to perform signaling interaction with the source base station, and continue to use DRB to perform data interaction with the source base station.
  • the terminal device may suspend the use of SRB for signaling interaction with the source base station, and suspend the use of DRB for data interaction with the source base station.
  • the terminal device fails to switch to the target base station.
  • the terminal device falls back to the source base station.
  • the terminal device sends instruction information to the source base station.
  • the terminal device suspends the radio bearer connection with the source base station, after 60, the source base station may also resume the suspended radio bearer connection with the terminal device.
  • the embodiment shown in FIG. 6 may be applicable to the Conditional Handover scenario shown in FIG. 3.
  • the method may include the following steps:
  • the 61 to 65 may correspond to the 201 to 205 described in FIG. 2.
  • the source base station sends a handover command to the terminal device for instructing the terminal device to switch to the target base station.
  • the handover command may include an identifier of at least one target base station and an access condition corresponding to the at least one target base station.
  • the terminal device maintains the connection with the source base station, monitors the configured target base station, and synchronizes to the target base station.
  • the terminal device may maintain the connection with the radio bearer of the source base station, or suspend the connection with the radio bearer of the source base station.
  • the terminal device can continue to use SRB to perform signaling interaction with the source base station, and suspend using DRB to perform data interaction with the source base station.
  • the terminal device may continue to use SRB to perform signaling interaction with the source base station, and continue to use DRB to perform data interaction with the source base station.
  • the terminal device may suspend the use of SRB for signaling interaction with the source base station, and suspend the use of DRB for data interaction with the source base station.
  • the terminal device may monitor the configured target base station according to the access condition of the target base station included in the handover command, and determine whether the configured target base station meets the access condition.
  • the terminal device fails to switch to the target base station.
  • the terminal device falls back to the source base station.
  • the terminal device sends instruction information to the source base station.
  • the terminal device suspends the radio bearer connection with the source base station
  • the source base station may also resume the suspended radio bearer connection with the terminal device.
  • the wireless communication method according to the embodiment of the present application is described in detail from the perspective of the terminal device, and the wireless communication according to another embodiment of the present application is described in detail from the perspective of the network device in conjunction with FIG. Methods. It should be understood that the description on the network device side and the description on the terminal device side correspond to each other, and similar descriptions can be referred to above. To avoid repetition, details are not repeated here.
  • FIG. 7 is a schematic flowchart of a wireless communication method 500 according to another embodiment of the present application.
  • the method 500 may be executed by a network device in the communication system shown in FIG. 1. As shown in FIG. 7, the method 500 includes The following content:
  • S510 The first network device determines that the terminal device fails to switch to the second network device.
  • the first network device maintains a connection with the terminal device.
  • the first network device determining that the terminal device fails to switch to the second network device, and the terminal device maintains the connection with the first network device includes:
  • the first network device receives the instruction information sent by the terminal device, where the instruction information is used to indicate that the terminal device fails to switch to the second network device.
  • the indication information is included in at least one of the following signaling: radio resource control RRC signaling, medium access control MAC control element CE, and uplink control information UCI.
  • the RRC signaling is newly added RRC signaling; or the MAC CE is a newly added MAC CE; or the UCI is a newly added UCI.
  • the RRC signaling is an RRC reconfiguration complete message
  • the MAC CE is a scheduling request SR or a buffer status report BSR.
  • the indication information is uplink control signaling.
  • the uplink control signaling is an uplink RRC message or an uplink media access control MAC control element CE or UCI.
  • the indication information is uplink data.
  • the first network device determining that the terminal device fails to switch to the second network device, and the terminal device maintains the connection with the first network device includes:
  • the first network device determines that the terminal device fails to switch to the second network device, and the terminal device maintains the connection with the first network device.
  • the specific timer is a T304 timer.
  • the method further includes: during the process of the terminal device being switched to the second network device, the first network device maintains a connection with the terminal device.
  • maintaining the connection between the first network device and the terminal device includes:
  • the first network device continues to use the radio bearer to communicate with the terminal device.
  • maintaining the connection between the first network device and the terminal device includes:
  • the first network device suspends using the radio bearer to communicate with the terminal device.
  • the first network device maintaining the connection between the first network device and the terminal device according to the instruction information includes:
  • the first network device After receiving the instruction information, the first network device resumes the radio bearer connection with the terminal device.
  • the radio bearer includes a signaling radio bearer SRB and/or a data radio bearer DRB.
  • the method further includes: the first network device sends a switching command to the terminal device, the switching command is used to instruct the terminal device to switch to the second network device .
  • the handover command includes an identifier of at least one target network device and an access condition corresponding to the at least one target network device, wherein the at least one target network device includes the second Internet equipment.
  • FIG. 8 shows a schematic block diagram of a terminal device 600 according to an embodiment of the present application. As shown in FIG. 8, the terminal device 600 includes:
  • the communication module 610 is configured to send instruction information to the first network device, where the instruction information is used to indicate that the terminal device fails to switch to the second network device.
  • the indication information is included in at least one of the following signaling:
  • the RRC signaling is a newly added RRC signaling; or the MAC CE is a newly added MAC CE; or the UCI is a newly added UCI.
  • the RRC signaling is an RRC reconfiguration complete message
  • the MAC CE is a scheduling request SR or a buffer status report BSR.
  • the indication information is uplink control signaling.
  • the uplink control signaling is an uplink RRC message or an uplink media access control MAC control element CE or UCI.
  • the indication information is uplink data.
  • the communication module 610 is further configured to:
  • the terminal device After receiving the switching command sent by the first network device, the terminal device sends the uplink data to the first network device, and the switching command is used to instruct the terminal device to switch from the first network device Switch to the second network device.
  • the communication module 610 is further configured to:
  • the terminal device 600 further includes: a control module, configured to start a timer after the terminal device receives the handover command sent by the first network device;
  • the communication module 610 is further configured to: send the uplink data to the first network device before the timer expires; wherein the time period during which the timer is in the on state corresponds to the first time period.
  • the timer is used to control the duration of the terminal device to access the second network device, and/or to control the terminal device to access the second network device The effective time of the resource.
  • the timer is a T304 timer.
  • the terminal device further includes: a processing module, configured to maintain a connection with the first network device when the terminal device is switched to the second network device.
  • the processing module is specifically configured to:
  • the processing module is specifically configured to:
  • the radio bearer includes a signaling radio bearer SRB and/or a data radio bearer.
  • the processing module is further configured to:
  • the radio link monitoring RLM is performed on the first network device to determine the wireless link condition of the first network device.
  • the terminal device further includes: a determining module, configured to determine whether to switch to the first network device according to the wireless link condition of the first network device.
  • the determining module is specifically configured to:
  • the wireless link condition of the first network device meets a specific condition, it is determined to switch to the first network device.
  • the communication module 610 is further configured to:
  • the handover command includes an identifier of at least one target network device and an access condition corresponding to the at least one target network device, wherein the at least one target network device includes the The second network device.
  • the communication module 610 is further configured to:
  • the channel quality of the second network device meets the access condition corresponding to the second network device, initiate a random access process to the second network device.
  • the communication module 610 is specifically configured to:
  • the processing module is further configured to:
  • the terminal device successfully sends a message 1 for random access to the second network device
  • the terminal device successfully receives the message 2 for random access sent by the second network device;
  • the terminal device successfully sends a message 3 for random access to the second network device
  • the terminal device successfully receives the message 4 for random access sent by the second network device.
  • terminal device 600 may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 600 are to implement the method shown in FIG. 4, respectively.
  • the corresponding process of the terminal equipment in 400 will not be repeated here.
  • Fig. 9 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 700 of FIG. 9 includes:
  • the determining module 710 determines that the terminal device fails to switch to the second network device, and the terminal device maintains a connection with the network device;
  • the processing module 720 is configured to maintain a connection with the terminal device.
  • the network device further includes:
  • the communication module is configured to receive instruction information sent by the terminal device, where the instruction information is used to indicate that the terminal device fails to switch to the second network device.
  • the indication information is included in at least one of the following signaling:
  • the RRC signaling is newly added RRC signaling; or the MAC CE is a newly added MAC CE; or the UCI is a newly added UCI.
  • the RRC signaling is an RRC reconfiguration complete message
  • the MAC CE is a scheduling request SR or a buffer status report BSR.
  • the indication information is uplink control signaling.
  • the uplink control signaling is an uplink RRC message or an uplink media access control MAC control element CE or UCI.
  • the indication information is uplink data.
  • the determining mode: 710 is specifically used for:
  • the terminal device fails to switch to the second network device, and the terminal device maintains the connection with the network device.
  • the specific timer is a T704 timer.
  • the processing module 720 is specifically configured to: maintain a connection with the terminal device during the process of the terminal device being switched to the second network device.
  • the processing module 720 is specifically configured to:
  • the processing module 720 is specifically configured to:
  • the processing module 720 is further configured to:
  • the radio bearer includes a signaling radio bearer SRB and/or a data radio bearer
  • the network device 700 further includes:
  • the communication module is configured to send a switching command to the terminal device, where the switching command is used to instruct the terminal device to switch to the second network device.
  • the handover command includes an identifier of at least one target network device and an access condition corresponding to the at least one target network device, wherein the at least one target network device includes the second Internet equipment.
  • the network device 700 may correspond to the first network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 700 are used to implement the operations and/or functions shown in FIG. 5 respectively.
  • the corresponding process of the first network device in the method 500 is shown. For the sake of brevity, it will not be repeated here.
  • FIG. 10 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the communication device 800 shown in FIG. 10 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 800 may further include a memory 820.
  • the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.
  • the memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.
  • the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 830 may include a transmitter and a receiver.
  • the transceiver 830 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 800 may specifically be the first network device of the embodiment of the present application, and the communication device 800 may implement the corresponding process implemented by the first network device in each method of the embodiment of the present application. For brevity, This will not be repeated here.
  • the communication device 800 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 800 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For simplicity , I won’t repeat it here.
  • FIG. 11 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 900 shown in FIG. 11 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 900 may further include a memory 920.
  • the processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.
  • the memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.
  • the chip 900 may further include an input interface 930.
  • the processor 910 can control the input interface 930 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 900 may further include an output interface 940.
  • the processor 910 can control the output interface 940 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the first network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the first network device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the first network device in each method of the embodiment of the present application.
  • it will not be omitted here. Repeat.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 12 is a schematic block diagram of a communication system 1000 according to an embodiment of the present application. As shown in FIG. 12, the communication system 1000 includes a terminal device 1010 and a network device 1020.
  • the terminal device 1010 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 1020 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding 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, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method 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, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

一种无线通信的方法、终端设备和网络设备,该方法包括:终端设备向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。

Description

无线通信的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域,具体涉及一种无线通信的方法、终端设备和网络设备。
背景技术
新无线(New Radio,NR)***支持小区切换,例如,当终端设备从一个小区移动到另一个小区,或由于无线通信业务负荷量调整、激活操作维护、设备故障等原因,为了保证通信的连续性和服务的质量,需要将该终端设备与源基站的通信链路转移到目标基站上,即执行切换过程。
但是,若终端设备接入目标基站失败,终端设备还需要发起无线资源控制(Radio Resource Control,RRC)连接重建过程才能进行正常的数据传输,增大了数据传输时延。
发明内容
本申请实施例提供一种无线通信的方法、终端设备和网络设备,有利于避免切换过程中的数据中断,从而能够降低数据传输时延。
第一方面,提供了一种无线通信的方法,包括:终端设备向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
第二方面,提供了一种无线通信的方法,包括:第一网络设备确定终端设备切换至第二网络设备失败;所述第一网络设备保持与所述终端设备之间的连接。
第三方面,提供了一种终端设备,用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第一方面或第一方面的任一可能的实现方式中的方法的单元。
第四方面,提供了一种网络设备,用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行上述第二方面或第二方面的任一可能的实现方式中的方法的单元。
第五方面,提供了一种终端设备,该终端设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面或其各实现方式中的方法。
第六方面,提供了一种网络设备,该网络设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面或其各实现方式中的方法。
第七方面,提供了一种芯片,用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于上述技术方案,终端设备在接入目标网络设备失败后,不必发起RRC连接重建过程,而是可以通过向源网络设备发送指示信息,指示所述终端设备接入目标网络设备失败,并且该终端设备保持着与源网络设备之间的连接,这样,该源网络设备可以获知 该终端设备的连接状态,进一步地,所述源网络设备可以继续使用与所述终端设备已建立的连接进行通信,从而能够降低数据传输时延。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了一种切换的方式示意***互图。
图3示出了另一种切换的方式示意***互图。
图4示出了本申请实施例的无线通信的方法的示意性流程图。
图5示出了本申请一实施例的无线通信的方法的示意***互图。
图6示出了本申请另一实施例的无线通信的方法的示意***互图。
图7示出了本申请另一实施例的无线通信的方法的示意性流程图。
图8示出了本申请实施例的终端设备的示意性框图。
图9示出了本申请实施例的网络设备的示意性框图。
图10示出了本申请实施例的通信设备的示意性框图。
图11示出了本申请实施例的芯片的示意性框图。
图12示出了本申请实施例的通信***的示意性框图。
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描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、LTE频分双工(Frequency Division Duplex,FDD)***、LTE时分双工(Time Division Duplex,TDD)、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信***或5G***等。
图1是本申请实施例的所适用的一种通信***100的示意性结构图。
如图1所示,终端设备110与第一通信***下的第一网络设备130和第二通信***下的第二网络设备120相连,例如,该第一网络设备130为长期演进(Long Term Evolution,LTE)下的网络设备,该第二网络设备120为新空口(New Radio,NR)下的网络设备。
其中,该第一网络设备130和该第二网络设备120下可以包括多个小区。
应理解,图1是本申请实施例的通信***的示例,本申请实施例不限于图1所示。
作为一个示例,本申请实施例适应的通信***可以包括至少该第一通信***下的多个网络设备和/或该第二通信***下的多个网络设备。
例如,图1所示的***100可以包括第一通信***下的一个主网络设备和第二通信***下的至少一个辅助网络设备。至少一个辅助网络设备分别与该一个主网络设备相连,构成多连接,并分别与终端设备110连接为其提供服务。具体地,终端设备110可以通过主网络设备和辅助网络设备同时建立连接。
可选地,终端设备110和主网络设备建立的连接为主连接,终端设备110与辅助网络设备建立的连接为辅连接。终端设备110的控制信令可以通过主连接进行传输,而终端设备110的数据可以通过主连接以及辅连接同时进行传输,也可以只通过辅连接进行传输。
作为又一示例,本申请实施例中的第一通信***和第二通信***不同,但对第一通信***和该第二通信***的具体类别不作限定。
例如,该第一通信***和该第二通信***可以是各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、LTE时分双工(Time Division Duplex,TDD)、通用移动通信***(Universal Mobile Telecommunication System,UMTS)等。
所述主网络设备和所述辅助网络设备可以为任意接入网设备。
可选地,在一些实施例中,所述接入网设备可以是全球移动通讯(Global System of Mobile communication,GSM)***或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***中的基站(NodeB,NB),还可以是长期演进(Long Term Evolution,LTE)***中的演进型基站(Evolutional Node B,eNB或eNodeB)。
可选地,所述接入网设备还可以是下一代无线接入网(Next Generation Radio Access Network,NG RAN),或者是NR***中的基站(gNB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该接入网设备可以为中继站、接入点、车载设备、可穿戴设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
在图1所示的***100中,以该第一网络设备130为主网络设备,以该第二网络设备120为辅助网络设备为例。
该第一网络设备130可以为LTE网络设备,该第二网络设备120可以为NR网络设备。或者该第一网络设备130可以为NR网络设备,第二网络设备120可以为LTE网络设备。或者该第一网络设备130和该第二网络设备120都可以为NR网络设备。或者该第一网络设备130可以为GSM网络设备,CDMA网络设备等,该第二网络设备120也可以为GSM网络设备,CDMA网络设备等。或者第一网络设备130可以是宏基站(Macrocell),第二网络设备120可以为微蜂窝基站(Microcell)、微微蜂窝基站(Picocell)或者毫微微蜂窝基站(Femtocell)等。
可选地,所述终端设备110可以是任意终端设备,所述终端设备110包括但不限于:
经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一终端设备的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话;可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信***(Personal Communications System,PCS)终端;可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位***(Global Positioning System,GPS)接收器的PDA;以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、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、个人数字处理(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、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。
在本申请实施例中,网络设备为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
应理解,本申请实施例的方法可以用于传输各种类型的业务。
例如增强移动超宽带(Enhance Mobile Broadband,eMBB),eMBB以用户获得多媒体内容、服务和数据为目标,其需求增长十分迅速。又例如eMBB,由于eMBB可能部署在不同的场景中,便如室内,市区,农村等,其能力和需求的差别也比较大,因此可以结合具体的部署场景详细分析。又例如URLLC,URLLC的典型应用包括:工业自动化,电力自动化,远程医疗操作(手术),交通安全保障等。大规模机器类通信(massive machine type of communication,mMTC)的典型特点包括:高连接密度,小数据量,时延不敏感业务,模块的低成本和长使用寿命等。
应理解,与LTE***相似,NR***支持切换过程。例如可以如图2所示,整个切换过程分为以下三个阶段:
(1)切换准备阶段:包括测量控制和汇报,切换请求以及确认。
(2)切换执行阶段:UE在收到切换命令后立即执行切换过程,即UE断开源小区并与目标小区连接(如执行随机接入,发送(无线资源控制,Radio Resource Control,RRC)切换完成消息给目标基站等);SN状态转移,数据转发。
(3)切换完成阶段:目标小区与AMF和UPF执行Path Switch,释放源基站的UE上下文。
具体地,如图2所示,切换准备阶段(201~205)可以包括:
在201中,源基站触发终端设备进行邻区测量,从而终端设备可以对邻区进行测量,并将测量结果上报给源基站。
在202中,源基站对终端设备上报的测量结果进行评估,决定是否触发切换。
在203中,若源基站决定触发切换,则可以向目标基站发送切换请求。
在204中,目标基站接收到源基站发送的切换请求后,可以根据源基站携带的业务信息开始准入,并进行无线资源配置。
在205中,目标基站向源基站发送切换请求确认消息,将在目标基站内的准入结果和无线资源配置信息返回给源基站。至此,切换准备阶段完成。
第二阶段,切换执行阶段(206~208)可以包括:
在206中,源基站接收到目标基站的切换请求确认消息后,可以触发终端设备进行切换。
在207中,源基站可以将缓冲数据、在传数据包、数据的***序列号等转发给目标基站。并且,目标基站可以缓存从源基站接收的数据
此外,终端设备可以断开与源基站的连接,与目标基站建立同步。
在208中,终端设备同步到目标基站。至此,切换执行阶段完成。
第三阶段,切换完成阶段(209~212)可以包括:
在209中,目标基站向移动性管理功能(Access and Mobility Management Function,AMF)发送路径切换请求。
在210中,AMF接收到目标基站的路径切换请求后,与用户面功能(User Plane Function,UPF)执行路径切换,清除源基站用户面的路径标记。
在211中,在路径切换完成之后,AMF可以向目标基站发送路径切换确认消息。
在212中,目标基站向源基站发送终端设备上下文释放消息,通知源基站切换成功,并触发源基站终端设备上下文。至此,切换完成。
终端设备在收到切换命令后立即启动T304定时器,并开始下行同步到目标小区,获取目标小区MIB信息,然后发起随机接入。随机接入过程中允许多次preamble重传直至随机接入成功。进一步地,如果T304定时器超时,说明切换失败,则所述终端设备可以直接触发RRC连接重建过程。
在本申请实施例中,在一些特定切换(Conditional handover)场景,例如,针对高速移动场景和高频部署场景,存在频繁切换以及切换容易失败的问题,考虑引入基于条件触发的切换过程,其基本原理是:终端设备根据网络侧配置的条件,在确定与目标小区相关的条件满足所配置的条件时,执行向该目标小区的切换(即触发随机接入过程和发送切换完成消息),避免由于高速移动进入覆盖差区域来不及或无法发送测量上报和接收到切换命令的问题。
具体地,基于条件触发的切换过程可以如图3所示,基于条件触发的切换过程包括:
310,源基站向终端设备发送测量配置信息;
320,终端设备向源基站发送测量报告;
330,源基站与目标基站交互切换准备信息;
340,源基站向终端设备发送切换命令;
该切换命令包括针对小区或者波束的条件信息。
350,当条件满足时终端设备与目标基站进行同步(即终端设备接入目标基站)。
但是,若终端设备接入目标基站失败,此情况下,如何进行终端设备的数据传输,尤其是时延敏感业务是一项亟需解决的问题。
图4为本申请实施例提供的一种无线通信的方法400的示意性流程图。
S410,终端设备向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
应理解,所述第一网络设备可以为与该终端设备当前建立连接的网络设备,即源网络设备,该第二网络设备为该终端设备待接入的网络设备,即目标网络设备。
可选地,在一些实施例中,所述指示信息可以只指示该终端设备接入第二网络设备失败,在该第一网络设备接收到该指示信息时,该第一网络设备可以认为该终端设备保持着与该第一网络设备之间的连接,这样,该第一网络设备可以恢复与该终端设备之间的连接。
可选地,所述指示信息可以指示该终端设备接入第二网络设备失败,并且该终端设备保持着与该第一网络设备之间的连接,在该第一网络设备接收到该指示信息时,该第一网络设备可以确定该终端设备接入第二网络设备失败,并且该终端设备保持着与该第一网络设备之间的连接,这样,该第一网络设备可以恢复与该终端设备之间的连接。
应理解,所述终端设备接入第二网络设备是否失败和该终端设备是否保持与第一网络设备之间的连接可以合并指示,例如,通过一个指示信息指示上述两个信息,也可以分开指示,例如,通过两个指示信息分别指示上述两个信息,或者也可以只指示其中一个信息,另一个信息可以根据该信息确定,例如,可以只指示该终端设备接入第二网络设备是否失败,在失败的情况下,该第一网络设备可以认为该终端设备保持与第一网络设备之间的连接;或者只指示该终端设备是否保持与第一网络设备之间的连接,该终端设备可以根据该终端设备是否保持与第一网络设备之间的连接,确定该终端设备接入第二网络设备是否失败,例如,若该终端设备保持与第一网络设备之间的连接,该第一物理设备可以确定该终端设备接入第二网络设备失败,否则,该第一网络设备可以确定该终端设备接入第二网络设备成功,本申请实施例并不限定具体的指示方式,以下,以该指示信息指示该终端设备接入第二网络设备失败为例进行说明,但不应对本申请实施例 构成任何限定。
因此,终端设备在接入目标网络设备失败后,不必发起RRC连接重建过程,而是可以通过向源网络设备发送指示信息,指示所述终端设备接入目标网络设备失败,并且所述终端设备保持着与源网络设备之间的连接,这样,该源网络设备可以获知该终端设备的连接状态,进一步地,所述源网络设备可以快速恢复与所述终端设备之间的连接,即该源网络设备可以继续使用与终端设备之前建立好的连接进行通信,从而能够避免数据传输中断,降低数据传输时延。
可选地,在一些实施例中,所述终端设备可以通过显示信令通知所述第一网络设备,该终端设备接入第二网络设备失败。作为示例而非限定,所述指示信息包含在以下中的至少一种信令中:
无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
例如,所述终端设备可以向该第一网络设备发送RRC信令,通过该RRC信令包括该指示信息,可选地,所述指示信息可以携带在该RRC信令的预留比特中,或者也可以在该RRC信令中新增字段,用于承载该指示信息,本申请实施例对于具体的承载方式不作限定。
又例如,所述终端设备可以向该第一网络设备发送媒体接入控制(Media Access Control,MAC)控制元素(Control Element,CE),所述MAC CE中包括所述指示信息,可选地,所述指示信息可以携带在该MAC CE的预留比特或填充比特中,或者也可以在该MAC CE中新增字段,用于承载该指示信息,本申请实施例对于具体的承载方式不作限定。
再例如,所述终端设备可以向该第一网络设备发送上行控制信息(Uplink Control Information,UCI),所述UCI中包括所述指示信息,可选地,所述指示信息可以携带在该UCI的预留比特中,或者也可以在该中新增字段,用于承载该指示信息,本申请实施例对于具体的承载方式不作限定。
需要说明的是,该终端设备可以在其他显示信令(例如,其他上行控制信令)中包括该指示信息,本申请实施例对此不作限定。
可选地,在一些具体实施例中,用于承载所述指示信息的信令可以为新增的信令,例如,新增的RRC信令,新增的MAC CE,或新增的UCI等,该新增的信令用于向源网络设备指示该终端设备切换至目标网络设备失败。
可选地,在另一些具体实施例中,用于承载所述指示信息的信令也可以为现有的信令,例如,现有的RRC信令,作为示例而非限定,RRC重配置完成消息等RRC消息;或者,现有的MAC CE,例如,调度请求(Scheduling Request,SR)或缓存状态报告(Buffer Status Report,BSR)等;或者现有的UCI等。通过复用现有的信令承载该指示信息,能够节省信令开销。
可选地,在另一些实施例中,所述终端设备也可以通过隐式信令通知所述第一网络设备,该终端设备接入第二网络设备失败。
可选地,在一些实施例中,该隐式信令可以为上行控制信令,例如,上行RRC消息,MAC CE或UCI,即该指示信息可以为上行RRC消息,MAC CE或UCI。
可选地,该上行RRC消息可以为RRC重配置完成消息或其他RRC消息,本申请实施例对此不作限定。
可选地,该MAC CE可以为SR或BSR等终端设备向网络设备发送的MAC CE,,本申请实施例对此不作限定。
可选地,在另一些实施例中,该隐式信令可以为上行数据,即该指示信息可以为上行数据。
通常来说,在切换过程中,终端设备不会向源网络设备发送上行RRC消息或上行数据,若在切换过程中,第一网络设备接收到该终端设备发送的上行RRC消息或上行数据, 该第一网络设备可以认为该终端设备切换至目标网络设备失败,并且回退到源网络设备,也就是说,该第一网络设备可以继续使用与终端设备之前建立好的连接进行通信,而不必重新建立连接。
可选地,在本申请实施例中,所述方法还包括:
终端设备接收到所述第一网络设备发送的切换命令(handover command)。
该切换命令可以用于指示该终端设备切换至第二网络设备。
在一些实施例中,该切换命令还可以指示该切换的类型,例如,基于eMBB的切换,基于非分离承载(non-split bearer)的切换,或基于零中断(0ms interruption)的切换等,在上述类型的切换过程中,该终端设备保持与源网络设备的连接,同时向目标网络设备发起切换。
可选地,在一些实施例中,所述上行控制信令或所述上行数据可以是在终端设备接收到所述第一网络设备发送的切换命令之后发送的,例如,该上行控制信令或该上行数据可以是在该终端设备向该第二网络设备切换的过程中发送的,或者,也可以是在终端设备切换至第二网络设备失败后发送的。
以上行数据的发送为例,该上行数据可以是接收到该第一网络设备的切换命令之后立刻发送的,或者也可以是接收到该切换命令之后的一段时间内发送的。可选地,该一段时间可以通过定时器来实现,例如,该定时器的开启条件可以为接收到该切换命令,该定时器的时长可以根据终端设备接入第二网络设备的时长和/或所述终端设备接入所述第二网络设备所用的资源的有效时间确定,则在该定时器的时长范围内,该终端设备正在执行向第二网络设备的切换过程,若此过程中,终端设备向第一网络设备发送上行数据,可以认为该终端设备切换至第二网络设备失败,并且回退到第一网络设备。
可选地,在一些具体实施例中,所述定时器可以采用现有的T304定时器实现,T304定时器的详细描述可以参考图2所示实施例的相关描述。
在本申请实施例中,在终端设备切换至第二网络设备的过程中,该终端设备保持与第一网络设备的连接,这样,在终端设备切换至第二目标设备失败的情况下,该终端设备还可以回退至第一网络设备,继续使用与第一网络设备已建立好的连接进行通信,有利于避免终端设备的数据传输中断。
可选地,该终端设备保持与第一网络设备的连接可以包括:
所述终端设备保持与所述第一网络设备之间的无线承载的连接。
即,该终端设备可以保持该无线承载的连接,并且继续使用之前已建立好的无线承载与所述第一网络设备进行通信。
可选地,所述无线承载可以包括信令无线承载(signaling radio bearers,SRB)和/或数据无线承载(Data radio bearers,DRB)。
可选地,该终端设备保持与第一网络设备的连接可以包括:
所述终端设备暂停与所述第一网络设备之间的无线承载的连接。
即,该终端设备可以继续保持该无线承载的连接,但是暂停使用所述无线承载与所述第一网络设备进行通信。
例如,所述终端设备可以保持与第一网络设备的SRB连接,同时保持与第一网络设备的DRB连接,即该终端设备可以继续使用SRB与第一网络设备进行信令交互,以及继续使用DRB与第一网络设备进行数据交互。
又例如,所述终端设备可以保持与第一网络设备的SRB连接,同时暂停与第一网络设备的DRB连接,即该终端设备可以继续使用SRB与第一网络设备进行信令交互,暂停使用DRB与第一网络设备进行数据交互。
再例如,所述终端设备可以暂停与第一网络设备的SRB连接,同时保持与第一网络设备的DRB连接,即该终端设备可以暂停使用SRB与第一网络设备进行信令交互,继续使用DRB与第一网络设备进行数据交互。
可选地,在一些情况下,在终端设备切换至第二网络设备失败的情况下,暂停哪些无线承载的连接可以是预配置的,或者也可以是与源网络设备约定的,或者也可以是协议约定的,例如,可以预配置暂停SRB连接,保持DRB连接,以保证数据能够实时传输,或者同时保持SRB连接和DRB连接等,本申请实施例对此不作限定。
可选地,在一些实施例中,所述第一网络设备在接收到终端设备发送的所述指示信息之后,可以确定该终端设备回退至该第一网络设备,进一步地,该第一网络设备可以恢复暂停的无线承载的连接,例如,若暂停了SRB连接,则该第一网络设备可以恢复该终端设备和第一网络设备之间的SRB连接。
可选地,在一些实施例中,所述方法400还可以包括:
在所述终端设备切换至所述第二网络设备的过程中,所述终端设备对所述第一网络设备进行无线链路监控RLM,确定所述第一网络设备的无线链路条件。
进一步地,所述终端设备可以根据所述第一网络设备的无线链路条件,确定是否切换至所述第一网络设备。
例如,若所述第一网络设备的无线链路条件满足特定条件,例如,所述第一网络设备的信道质量大于预设的质量门限,所述终端设备确定切换至所述第一网络设备。
可选地,所述终端设备对所述第一网络设备进行无线链路监控RLM,包括:在满足以下条件中的一个之前,所述终端设备持续对所述第一网络设备进行RLM:
所述终端设备向所述第二网络设备成功发送用于随机接入的消息1(MSG1,或称前导序列);
所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息2(MSG2,或称随机接入响应);
所述终端设备向所述第二网络设备成功发送用于随机接入的消息3(MSG3);
所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息4(MSG4)。
应理解,所述终端设备成功发送MSG1或MSG3,或所述终端设备成功接收MSG2或MSG3,可以认为该终端设备有可能接入该第二网络设备成功,此情况下,可以停止对第一网络设备进行RLM,在此之前,该终端设备有可能接入该第二网络设备失败,也就是说,该终端设备有可能还需要回退至第一网络设备,因此,需要对该第一网络设备进行RLM,以确定该第一网络设备是否满足接入条件。
需要说明的是,对于基于非竞争的随机接入,该终端设备可以在成功发送MSG1或成功接收MSG2之前,持续对所述第一网络设备进行RLM。
可选地,在一些实施例中,所述方法400还包括:
所述终端设备接收所述第一网络设备发送的切换命令,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
此步骤可以对应于图3中的340,在一些实施例中,该至少一个目标网络设备对应的接入条件可以为小区和/或波束的条件信息。该终端设备可以对所述至少一个目标网络设备的信道质量进行测量,确定是否满足对应的接入条件,若满足对应的接入条件,则该终端设备可以向该目标网络设备发起随机接入过程。在一些实施例中,该目标网络设备为该第二网络设备,该终端设备可以在向所述第二网络设备随机接入失败的情况下,向所述第一网络设备发送所述指示信息,指示所述终端设备切换至第二网络设备失败。
因此,在本申请实施例中,终端设备在接入目标网络设备失败后,不必发起RRC连接重建过程,而是可以向源网络设备发送指示信息,指示所述终端设备接入目标网络设备失败,并且所述终端设备保持着与源网络设备之间的连接,这样,该源网络设备可以获知该终端设备的连接状态,进一步地,所述源网络设备可以快速恢复与所述终端设备之间的连接,即该源网络设备可以继续使用与终端设备之前建立好的连接进行通信,从而能够避免数据传输中断,降低数据传输时延。
以下,结合图5和图6,以第一网络设备为源基站,第二网络设备为目标基站为例,说明根据本申请具体实施例的无线通信的方法。
图5所示实施例可以适用于各种切换场景,例如基于eMBB的切换,基于非分离承载(non-split bearer)的切换,或基于零中断(0ms interruption)的切换等切换场景,如图5所示,该方法可以包括如下步骤:
其中该51~55可以对应图2中所述的201~205,相关描述请参考前述实施例,为了简洁,这里不再赘述。
进一步地,在56中,源基站向终端设备发送切换命令,用于指示该终端设备切换至目标基站。
在57中,终端设备保持与源基站的连接,并同步至目标基站。
可选地,该终端设备可以保持与源基站的无线承载的连接,或暂停与源基站的无线承载的连接。
例如,该终端设备可以继续使用SRB与源基站进行信令交互,并暂停使用DRB与源基站进行数据交互。
又例如,该终端设备可以继续使用SRB与源基站进行信令交互,并继续使用DRB与源基站进行数据交互。
再例如,该终端设备可以暂停使用SRB与源基站进行信令交互,并暂停使用DRB与源基站进行数据交互。
在58中,终端设备切换至目标基站失败。
在59中,终端设备回退至源基站。
在60中,终端设备向源基站发送指示信息。
该指示信息的具体实现可以参考前文的相关描述,这里不再赘述。
可选地,若在57中,终端设备暂停和源基站之间的无线承载的连接,在60之后,该源基站还可以恢复暂停的与终端设备之间的无线承载的连接。
图6所示实施例可以适用于图3所示的Conditional handover场景,如图6所示,该方法可以包括如下步骤:
其中该61~65可以对应图2中所述的201~205,相关描述请参考前述实施例,为了简洁,这里不再赘述。
进一步地,在66中,源基站向终端设备发送切换命令,用于指示该终端设备切换至目标基站。
可选地,该切换命令可以包括至少一个目标基站的标识和所述至少一个目标基站对应的接入条件。
在67中,终端设备保持与源基站的连接,监测配置的目标基站,并同步至目标基站。
可选地,该终端设备可以保持与源基站的无线承载的连接,或暂停与源基站的无线承载的连接。
例如,该终端设备可以继续使用SRB与源基站进行信令交互,并暂停使用DRB与源基站进行数据交互。
又例如,该终端设备可以继续使用SRB与源基站进行信令交互,并继续使用DRB与源基站进行数据交互。
再例如,该终端设备可以暂停使用SRB与源基站进行信令交互,并暂停使用DRB与源基站进行数据交互。
所述终端设备可以根据切换命令中包括的目标基站的接入条件,监测配置的目标基站,判断配置的目标基站是否满足接入条件。
在68中,终端设备切换至目标基站失败。
在69中,终端设备回退至源基站。
在70中,终端设备向源基站发送指示信息。
可选地,若在67中,终端设备暂停和源基站之间的无线承载的连接,在70之后,该源基站还可以恢复暂停的与终端设备之间的无线承载的连接。
该指示信息的具体实现可以参考前文的相关描述,这里不再赘述。
上文结合图4至图6,从终端设备的角度详细描述了根据本申请实施例的无线通信的方法,下文结合图7,从网络设备的角度详细描述根据本申请另一实施例的无线通信的方法。应理解,网络设备侧的描述与终端设备侧的描述相互对应,相似的描述可以参见上文,为避免重复,此处不再赘述。
图7是根据本申请另一实施例的无线通信的方法500的示意性流程图,该方法500可以由图1所示的通信***中的网络设备执行,如图7所示,该方法500包括如下内容:
S510,第一网络设备确定终端设备切换至第二网络设备失败;
S520,所述第一网络设备保持与所述终端设备之间的连接。
可选地,在一些实施例中,所述第一网络设备确定终端设备切换至第二网络设备失败,并且所述终端设备保持着与所述第一网络设备的连接,包括:
所述第一网络设备接收所述终端设备发送的指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
可选地,在一些实施例中,所述指示信息包含在以下中的至少一种信令中:无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
可选地,在一些实施例中,所述RRC信令为新增RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
可选地,在一些实施例中,所述RRC信令为RRC重配置完成消息,或者所述MAC CE为调度请求SR或缓冲状态报告BSR。
可选地,在一些实施例中,所述指示信息为上行控制信令。
可选地,在一些实施例中,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
可选地,在一些实施例中,所述指示信息为上行数据。
可选地,在一些实施例中,所述第一网络设备确定终端设备切换至第二网络设备失败,并且所述终端设备保持着与所述第一网络设备的连接,包括:
所述第一网络设备在特定定时器超时的情况下,确定所述终端设备切换至第二网络设备失败,并且所述终端设备保持着与所述第一网络设备的连接。
可选地,在一些实施例中,所述特定定时器为T304定时器。
可选地,在一些实施例中,所述方法还包括:在所述终端设备切换至所述第二网络设备的过程中,所述第一网络设备保持与所述终端设备的连接。
可选地,在一些实施例中,所述第一网络设备保持与所述终端设备的连接,包括:
所述第一网络设备继续使用所述无线承载与所述终端设备进行通信。
可选地,在一些实施例中,所述第一网络设备保持与所述终端设备的连接,包括:
所述第一网络设备暂停使用所述无线承载与所述终端设备进行通信。
可选地,在一些实施例中,所述第一网络设备根据所述指示信息,保持所述第一网络设备与所述终端设备之间的连接,包括:
所述第一网络设备在接收到所述指示信息后,恢复与所述终端设备之间的无线承载的连接。
可选地,在一些实施例中,所述无线承载包括信令无线承载SRB和/或数据无线承载DRB。
可选地,在一些实施例中,所述方法还包括:所述第一网络设备向所述终端设备发送切换命令,所述切换命令用于指示所述终端设备切换至所述第二网络设备。
可选地,在一些实施例中,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第 二网络设备。
上文结合图2至图7,详细描述了本申请的方法实施例,下文结合图8至图12,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图8示出了根据本申请实施例的终端设备600的示意性框图。如图8所示,该终端设备600包括:
通信模块610,用于向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
可选地,在一些实施例中,所述指示信息包含在以下中的至少一种信令中:
无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
可选地,在一些实施例中,所述RRC信令为新增的RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
可选地,在一些实施例中,所述RRC信令为RRC重配置完成消息,或者,所述MAC CE为调度请求SR或缓冲状态报告BSR。
可选地,在一些实施例中,所述指示信息为上行控制信令。
可选地,在一些实施例中,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
可选地,在一些实施例中,所述指示信息为上行数据。
可选地,在一些实施例中,所述通信模块610还用于:
在所述终端设备接收到所述第一网络设备发送的切换命令之后,向所述第一网络设备发送所述上行数据,所述切换命令用于指示所述终端设备从所述第一网络设备切换至所述第二网络设备。
可选地,在一些实施例中,所述通信模块610还用于:
在所述终端设备接收到所述第一网络设备发送的切换命令之后的第一时间段内,向所述第一网络设备发送所述上行数据。
可选地,在一些实施例中,所述终端设备600还包括:控制模块,用于在所述终端设备接收到所述第一网络设备发送的切换命令之后,开启定时器;
所述通信模块610还用于:在所述定时器超时前,向所述第一网络设备发送所述上行数据;其中,所述定时器处于开启状态的时间段对应所述第一时间段。
可选地,在一些实施例中,所述定时器为用于控制所述终端设备接入所述第二网络设备的时长,和/或控制所述终端设备接入所述第二网络设备所用的资源的有效时间。
可选地,在一些实施例中,所述定时器为T304定时器。
可选地,在一些实施例中,所述终端设备还包括:处理模块,用于在所述终端设备切换至所述第二网络设备的过程中,保持与所述第一网络设备的连接。
可选地,在一些实施例中,所述处理模块具体用于:
控制所述通信模块继续使用所述无线承载与所述第一网络设备进行通信。
可选地,在一些实施例中,所述处理模块具体用于:
控制所述通信模块暂停使用所述无线承载与所述第一网络设备进行通信。
可选地,在一些实施例中,所述无线承载包括信令无线承载SRB和/或数据无线承载。
可选地,在一些实施例中,所述处理模块还用于:
在所述终端设备切换至所述第二网络设备的过程中,对所述第一网络设备进行无线链路监控RLM,确定所述第一网络设备的无线链路条件。
可选地,在一些实施例中,所述终端设备还包括:确定模块,用于根据所述第一网络设备的无线链路条件,确定是否切换至所述第一网络设备。
可选地,在一些实施例中,所述确定模块具体用于:
若所述第一网络设备的无线链路条件满足特定条件,确定切换至所述第一网络设备。
可选地,在一些实施例中,所述通信模块610还用于:
接收所述第一网络设备发送的切换命令,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
可选地,在一些实施例中,所述通信模块610还用于:
若所述第二网络设备的信道质量满足所述第二网络设备对应的接入条件,向所述第二网络设备发起随机接入过程。
可选地,在一些实施例中,所述通信模块610具体用于:
在所述终端设备向所述第二网络设备随机接入失败的情况下,向所述第一网络设备发送所述指示信息。
可选地,在一些实施例中,所述处理模块还用于:
在满足以下条件中的一个之前,持续对所述第一网络设备进行RLM:
所述终端设备向所述第二网络设备成功发送用于随机接入的消息1;
所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息2;
所述终端设备向所述第二网络设备成功发送用于随机接入的消息3;
所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息4。
应理解,根据本申请实施例的终端设备600可对应于本申请方法实施例中的终端设备,并且终端设备600中的各个单元的上述和其它操作和/或功能分别为了实现图4所示方法400中终端设备的相应流程,为了简洁,在此不再赘述。
图9是根据本申请实施例的网络设备的示意性框图。图9的网络设备700包括:
确定模块710,确定终端设备切换至第二网络设备失败,并且所述终端设备保持着与所述网络设备的连接;
处理模块720,用于保持与所述终端设备之间的连接。
可选地,在一些实施例中,所述网络设备还包括:
通信模块,用于接收所述终端设备发送的指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
可选地,在一些实施例中,所述指示信息包含在以下中的至少一种信令中:
无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
可选地,在一些实施例中,所述RRC信令为新增RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
可选地,在一些实施例中,所述RRC信令为RRC重配置完成消息,或者所述MAC CE为调度请求SR或缓冲状态报告BSR。
可选地,在一些实施例中,所述指示信息为上行控制信令。
可选地,在一些实施例中,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
可选地,在一些实施例中,所述指示信息为上行数据。
可选地,在一些实施例中,所述确定模:710具体用于:
在特定定时器超时的情况下,确定所述终端设备切换至第二网络设备失败,并且所述终端设备保持着与所述网络设备的连接。
可选地,在一些实施例中,所述特定定时器为T704定时器。
可选地,在一些实施例中,所述处理模块720具体用于:在所述终端设备切换至所述第二网络设备的过程中,保持与所述终端设备的连接。
可选地,在一些实施例中,所述处理模块720具体用于:
控制所述通信模块继续使用所述无线承载与所述终端设备进行通信。
可选地,在一些实施例中所述处理模块720具体用于:
控制所述通信模块暂停使用所述无线承载与所述终端设备进行通信。
可选地,在一些实施例中,所述处理模块720还用于:
在接收到所述指示信息后,恢复与所述终端设备之间的无线承载的连接。
可选地,在一些实施例中,所述无线承载包括信令无线承载SRB和/或数据无线承
可选地,在一些实施例中,所述网络设备700还包括:
通信模块,用于向所述终端设备发送切换命令,所述切换命令用于指示所述终端设备切换至所述第二网络设备。
可选地,在一些实施例中,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
应理解,根据本申请实施例的网络设备700可对应于本申请方法实施例中的第一网络设备,并且网络设备700中的各个单元的上述和其它操作和/或功能分别为了实现图5所示方法500中第一网络设备的相应流程,为了简洁,在此不再赘述。
图10是本申请实施例提供的一种通信设备800示意性结构图。图10所示的通信设备800包括处理器810,处理器810可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图10所示,通信设备800还可以包括存储器820。其中,处理器810可以从存储器820中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器820可以是独立于处理器810的一个单独的器件,也可以集成在处理器810中。
可选地,如图10所示,通信设备800还可以包括收发器830,处理器810可以控制该收发器830与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器830可以包括发射机和接收机。收发器830还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备800具体可为本申请实施例的第一网络设备,并且该通信设备800可以实现本申请实施例的各个方法中由第一网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备800具体可为本申请实施例的移动终端/终端设备,并且该通信设备800可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
图11是本申请实施例的芯片的示意性结构图。图11所示的芯片900包括处理器910,处理器910可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图12所示,芯片900还可以包括存储器920。其中,处理器910可以从存储器920中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器920可以是独立于处理器910的一个单独的器件,也可以集成在处理器910中。
可选地,该芯片900还可以包括输入接口930。其中,处理器910可以控制该输入接口930与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片900还可以包括输出接口940。其中,处理器910可以控制该输出接口940与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的第一网络设备,并且该芯片可以实现本申请实施例的各个方法中由第一网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的移动终端/终端设备,并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。
图12是本申请实施例提供的一种通信***1000的示意性框图。如图12所示,该通信***1000包括终端设备1010和网络设备1020。
其中,该终端设备1010可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备1020可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)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、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现 的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (90)

  1. 一种无线通信的方法,其特征在于,包括:
    终端设备向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
  2. 根据权利要求1所述的方法,其特征在于,所述指示信息包含在以下中的至少一种信令中:
    无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
  3. 根据权利要求2所述的方法,其特征在于,所述RRC信令为新增的RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
  4. 根据权利要求2所述的方法,其特征在于,所述RRC信令为RRC重配置完成消息,或者,所述MAC CE为调度请求SR或缓冲状态报告BSR。
  5. 根据权利要求1所述的方法,其特征在于,所述指示信息为上行控制信令。
  6. 根据权利要求5所述的方法,其特征在于,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
  7. 根据权利要求1所述的方法,其特征在于,所述指示信息为上行数据。
  8. 根据权利要求7所述的方法,其特征在于,所述终端设备向第一网络设备发送指示信息,包括:
    在所述终端设备接收到所述第一网络设备发送的切换命令之后,所述终端设备向所述第一网络设备发送所述上行数据,所述切换命令用于指示所述终端设备从所述第一网络设备切换至所述第二网络设备。
  9. 根据权利要求8所述的方法,其特征在于,所述终端设备向第一网络设备发送指示信息,包括:
    在所述终端设备接收到所述第一网络设备发送的切换命令之后的第一时间段内,所述终端设备向所述第一网络设备发送所述上行数据。
  10. 根据权利要求9所述的方法,其特征在于,所述在所述终端设备接收到所述第一网络设备发送的切换命令之后的第一时间段内,所述终端设备向所述第一网络设备发送所述上行数据,包括:
    在所述终端设备接收到所述第一网络设备发送的切换命令之后,开启定时器,在所述定时器超时前,所述终端设备向所述第一网络设备发送所述上行数据;
    其中,所述定时器处于开启状态的时间段对应所述第一时间段。
  11. 根据权利要求10所述的方法,其特征在于,所述定时器为用于控制所述终端设备接入所述第二网络设备的时长,和/或控制所述终端设备接入所述第二网络设备所用的资源的有效时间。
  12. 根据权利要求11所述的方法,其特征在于,所述定时器为T304定时器。
  13. 根据权利要求1至12中任一项所述的方法,其特征在于,所述方法还包括:
    在所述终端设备切换至所述第二网络设备的过程中,所述终端设备保持与所述第一网络设备的连接。
  14. 根据权利要求13所述的方法,其特征在于,所述终端设备保持与所述第一网络设备的连接,包括:
    所述终端设备继续使用所述无线承载与所述第一网络设备进行通信。
  15. 根据权利要求13所述的方法,其特征在于,所述终端设备保持与所述第一网络设备的连接,包括:
    所述终端设备暂停使用所述无线承载与所述第一网络设备进行通信。
  16. 根据权利要求14或15所述的方法,其特征在于,所述无线承载包括信令无线承载SRB和/或数据无线承载。
  17. 根据权利要求13至16中任一项所述的方法,其特征在于,所述方法还包括:
    在所述终端设备切换至所述第二网络设备的过程中,所述终端设备对所述第一网络设备进行无线链路监控RLM,确定所述第一网络设备的无线链路条件。
  18. 根据权利要求17所述的方法,其特征在于,所述方法还包括:
    所述终端设备根据所述第一网络设备的无线链路条件,确定是否切换至所述第一网络设备。
  19. 根据权利要求18所述的方法,其特征在于,所述方法还包括:
    若所述第一网络设备的无线链路条件满足特定条件,所述终端设备确定切换至所述第一网络设备。
  20. 根据权利要求1至19中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收所述第一网络设备发送的切换命令,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
  21. 根据权利要求20所述的方法,其特征在于,所述方法还包括:
    若所述第二网络设备的信道质量满足所述第二网络设备对应的接入条件,所述终端设备向所述第二网络设备发起随机接入过程。
  22. 根据权利要求21所述的方法,其特征在于,所述终端设备向第一网络设备发送指示信息,包括:
    在所述终端设备向所述第二网络设备随机接入失败的情况下,所述终端设备向所述第一网络设备发送所述指示信息。
  23. 根据权利要求17至22中任一项所述的方法,其特征在于,所述终端设备对所述第一网络设备进行无线链路监控RLM,包括:
    在满足以下条件中的一个之前,所述终端设备持续对所述第一网络设备进行RLM:
    所述终端设备向所述第二网络设备成功发送用于随机接入的消息1;
    所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息2;
    所述终端设备向所述第二网络设备成功发送用于随机接入的消息3;
    所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息4。
  24. 一种无线通信的方法,其特征在于,包括:
    第一网络设备确定终端设备切换至第二网络设备失败;
    所述第一网络设备保持与所述终端设备之间的连接。
  25. 根据权利要求24所述的方法,其特征在于,所述第一网络设备确定终端设备切换至第二网络设备失败,包括:
    所述第一网络设备接收所述终端设备发送的指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
  26. 根据权利要求25所述的方法,其特征在于,所述指示信息包含在以下中的至少一种信令中:
    无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
  27. 根据权利要求26所述的方法,其特征在于,所述RRC信令为新增RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
  28. 根据权利要求26所述的方法,其特征在于,所述RRC信令为RRC重配置完成消息,或者所述MAC CE为调度请求SR或缓冲状态报告BSR。
  29. 根据权利要求25所述的方法,其特征在于,所述指示信息为上行控制信令。
  30. 根据权利要求29所述的方法,其特征在于,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
  31. 根据权利要求25所述的方法,其特征在于,所述指示信息为上行数据。
  32. 根据权利要求24所述的方法,其特征在于,所述第一网络设备确定终端设备切 换至第二网络设备失败,包括:
    所述第一网络设备在特定定时器超时的情况下,确定所述终端设备切换至第二网络设备失败。
  33. 根据权利要求32所述的方法,其特征在于,所述特定定时器为T304定时器。
  34. 根据权利要求24至33中任一项所述的方法,其特征在于,所述方法还包括:
    在所述终端设备切换至所述第二网络设备的过程中,所述第一网络设备保持与所述终端设备的连接。
  35. 根据权利要求34所述的方法,其特征在于,所述第一网络设备保持与所述终端设备的连接,包括:
    所述第一网络设备继续使用所述无线承载与所述终端设备进行通信。
  36. 根据权利要求34所述的方法,其特征在于,所述第一网络设备保持与所述终端设备的连接,包括:
    所述第一网络设备暂停使用所述无线承载与所述终端设备进行通信。
  37. 根据权利要求36所述的方法,其特征在于,所述第一网络设备根据所述指示信息,保持所述第一网络设备与所述终端设备之间的连接,包括:
    所述第一网络设备在接收到所述指示信息后,恢复与所述终端设备之间的无线承载的连接。
  38. 根据权利要求35至37中任一项所述的方法,其特征在于,所述无线承载包括信令无线承载SRB和/或数据无线承载。
  39. 根据权利要求24至38中任一项所述的方法,其特征在于,所述方法还包括:
    所述第一网络设备向所述终端设备发送切换命令,所述切换命令用于指示所述终端设备切换至所述第二网络设备。
  40. 根据权利要求39所述的方法,其特征在于,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
  41. 一种终端设备,其特征在于,包括:
    通信模块,用于向第一网络设备发送指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
  42. 根据权利要求41所述的终端设备,其特征在于,所述指示信息包含在以下中的至少一种信令中:
    无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
  43. 根据权利要求42所述的终端设备,其特征在于,所述RRC信令为新增的RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
  44. 根据权利要求42所述的终端设备,其特征在于,所述RRC信令为RRC重配置完成消息,或者,所述MAC CE为调度请求SR或缓冲状态报告BSR。
  45. 根据权利要求41所述的终端设备,其特征在于,所述指示信息为上行控制信令。
  46. 根据权利要求45所述的终端设备,其特征在于,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
  47. 根据权利要求41所述的终端设备,其特征在于,所述指示信息为上行数据。
  48. 根据权利要求47所述的终端设备,其特征在于,所述通信模块还用于:
    在所述终端设备接收到所述第一网络设备发送的切换命令之后,向所述第一网络设备发送所述上行数据,所述切换命令用于指示所述终端设备从所述第一网络设备切换至所述第二网络设备。
  49. 根据权利要求48所述的终端设备,其特征在于,所述通信模块还用于:
    在所述终端设备接收到所述第一网络设备发送的切换命令之后的第一时间段内,向所述第一网络设备发送所述上行数据。
  50. 根据权利要求49所述的终端设备,其特征在于,所述终端设备还包括:
    控制模块,用于在所述终端设备接收到所述第一网络设备发送的切换命令之后,开启定时器;
    所述通信模块还用于:在所述定时器超时前,向所述第一网络设备发送所述上行数据;
    其中,所述定时器处于开启状态的时间段对应所述第一时间段。
  51. 根据权利要求50所述的终端设备,其特征在于,所述定时器为用于控制所述终端设备接入所述第二网络设备的时长,和/或控制所述终端设备接入所述第二网络设备所用的资源的有效时间。
  52. 根据权利要求51所述的终端设备,其特征在于,所述定时器为T304定时器。
  53. 根据权利要求41至52中任一项所述的终端设备,其特征在于,所述终端设备还包括:
    处理模块,用于在所述终端设备切换至所述第二网络设备的过程中,保持与所述第一网络设备的连接。
  54. 根据权利要求53所述的终端设备,其特征在于,所述处理模块具体用于:
    控制所述通信模块继续使用所述无线承载与所述第一网络设备进行通信。
  55. 根据权利要求53所述的终端设备,其特征在于,所述处理模块具体用于:
    控制所述通信模块暂停使用所述无线承载与所述第一网络设备进行通信。
  56. 根据权利要求54或55所述的终端设备,其特征在于,所述无线承载包括信令无线承载SRB和/或数据无线承载。
  57. 根据权利要求53至56中任一项所述的终端设备,其特征在于,所述处理模块还用于:
    在所述终端设备切换至所述第二网络设备的过程中,对所述第一网络设备进行无线链路监控RLM,确定所述第一网络设备的无线链路条件。
  58. 根据权利要求57所述的终端设备,其特征在于,所述终端设备还包括:
    确定模块,用于根据所述第一网络设备的无线链路条件,确定是否切换至所述第一网络设备。
  59. 根据权利要求58所述的终端设备,其特征在于,所述确定模块具体用于:
    若所述第一网络设备的无线链路条件满足特定条件,确定切换至所述第一网络设备。
  60. 根据权利要求41至59中任一项所述的终端设备,其特征在于,所述通信模块还用于:
    接收所述第一网络设备发送的切换命令,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
  61. 根据权利要求60所述的终端设备,其特征在于,所述通信模块还用于:
    若所述第二网络设备的信道质量满足所述第二网络设备对应的接入条件,向所述第二网络设备发起随机接入过程。
  62. 根据权利要求61所述的终端设备,其特征在于,所述通信模块具体用于:
    在所述终端设备向所述第二网络设备随机接入失败的情况下,向所述第一网络设备发送所述指示信息。
  63. 根据权利要求57至62中任一项所述的终端设备,其特征在于,所述处理模块还用于:
    在满足以下条件中的一个之前,持续对所述第一网络设备进行RLM:
    所述终端设备向所述第二网络设备成功发送用于随机接入的消息1;
    所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息2;
    所述终端设备向所述第二网络设备成功发送用于随机接入的消息3;
    所述终端设备成功接收所述第二网络设备发送的用于随机接入的消息4。
  64. 一种网络设备,其特征在于,包括:
    确定模块,确定终端设备切换至第二网络设备失败;
    处理模块,用于保持与所述终端设备之间的连接。
  65. 根据权利要求64所述的网络设备,其特征在于,所述网络设备还包括:
    通信模块,用于接收所述终端设备发送的指示信息,所述指示信息用于指示所述终端设备切换至第二网络设备失败。
  66. 根据权利要求65所述的网络设备,其特征在于,所述指示信息包含在以下中的至少一种信令中:
    无线资源控制RRC信令,媒体接入控制MAC控制元素CE和上行控制信息UCI。
  67. 根据权利要求66所述的网络设备,其特征在于,所述RRC信令为新增RRC信令;或所述MAC CE为新增的MAC CE;或者所述UCI为新增的UCI。
  68. 根据权利要求66所述的网络设备,其特征在于,所述RRC信令为RRC重配置完成消息,或者所述MAC CE为调度请求SR或缓冲状态报告BSR。
  69. 根据权利要求65所述的网络设备,其特征在于,所述指示信息为上行控制信令。
  70. 根据权利要求69所述的网络设备,其特征在于,所述上行控制信令为上行RRC消息或上行媒体接入控制MAC控制元素CE或者UCI。
  71. 根据权利要求65所述的网络设备,其特征在于,所述指示信息为上行数据。
  72. 根据权利要求64所述的网络设备,其特征在于,所述确定模块具体用于:
    在特定定时器超时的情况下,确定所述终端设备切换至第二网络设备失败。
  73. 根据权利要求72所述的网络设备,其特征在于,所述特定定时器为T704定时器。
  74. 根据权利要求64至73中任一项所述的网络设备,其特征在于,所述处理模块具体用于:在所述终端设备切换至所述第二网络设备的过程中,保持与所述终端设备的连接。
  75. 根据权利要求74所述的网络设备,其特征在于,所述处理模块具体用于:
    控制所述通信模块继续使用所述无线承载与所述终端设备进行通信。
  76. 根据权利要求74所述的网络设备,其特征在于,所述处理模块具体用于:
    控制所述通信模块暂停使用所述无线承载与所述终端设备进行通信。
  77. 根据权利要求76所述的网络设备,其特征在于,所述处理模块还用于:
    在接收到所述指示信息后,恢复与所述终端设备之间的无线承载的连接。
  78. 根据权利要求75至77中任一项所述的网络设备,其特征在于,所述无线承载包括信令无线承载SRB和/或数据无线承载DRB。
  79. 根据权利要求64至78中任一项所述的网络设备,其特征在于,所述网络设备还包括:
    通信模块,用于向所述终端设备发送切换命令,所述切换命令用于指示所述终端设备切换至所述第二网络设备。
  80. 根据权利要求79所述的网络设备,其特征在于,所述切换命令包括至少一个目标网络设备的标识和所述至少一个目标网络设备对应的接入条件,其中,所述至少一个目标网络设备包括所述第二网络设备。
  81. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至23中任一项所述的方法。
  82. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至23中任一项所述的方法。
  83. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程 序使得计算机执行如权利要求1至23中任一项所述的方法。
  84. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至23中任一项所述的方法。
  85. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至23中任一项所述的方法。
  86. 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求24至40中任一项所述的方法。
  87. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求24至40中任一项所述的方法。
  88. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求24至40中任一项所述的方法。
  89. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求24至40中任一项所述的方法。
  90. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求24至40中任一项所述的方法。
PCT/CN2019/079356 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备 WO2020191554A1 (zh)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES19921034T ES2950979T3 (es) 2019-03-22 2019-03-22 Método de comunicación inalámbrica, dispositivo terminal y dispositivo de red
CN201980079887.9A CN113316947A (zh) 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备
CN202111056939.6A CN113747532B (zh) 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备
CA3134505A CA3134505A1 (en) 2019-03-22 2019-03-22 Wireless communication method, terminal device and network device
EP19921034.5A EP3930362B1 (en) 2019-03-22 2019-03-22 Wireless communication method, terminal device and network device
PCT/CN2019/079356 WO2020191554A1 (zh) 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备
JP2021556923A JP7312846B2 (ja) 2019-03-22 2019-03-22 無線通信の方法、端末装置及びネットワーク装置
KR1020217032265A KR20210138648A (ko) 2019-03-22 2019-03-22 무선 통신 방법, 단말기 및 네트워크 기기
BR112021018878A BR112021018878A2 (pt) 2019-03-22 2019-03-22 Método de comunicação sem fio, dispositivo terminal e dispositivo de rede
US17/479,772 US20220007449A1 (en) 2019-03-22 2021-09-20 Wireless communication method, terminal device and network device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/079356 WO2020191554A1 (zh) 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/479,772 Continuation US20220007449A1 (en) 2019-03-22 2021-09-20 Wireless communication method, terminal device and network device

Publications (1)

Publication Number Publication Date
WO2020191554A1 true WO2020191554A1 (zh) 2020-10-01

Family

ID=72610483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/079356 WO2020191554A1 (zh) 2019-03-22 2019-03-22 无线通信的方法、终端设备和网络设备

Country Status (9)

Country Link
US (1) US20220007449A1 (zh)
EP (1) EP3930362B1 (zh)
JP (1) JP7312846B2 (zh)
KR (1) KR20210138648A (zh)
CN (2) CN113316947A (zh)
BR (1) BR112021018878A2 (zh)
CA (1) CA3134505A1 (zh)
ES (1) ES2950979T3 (zh)
WO (1) WO2020191554A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109246774B (zh) * 2017-06-16 2021-01-05 华为技术有限公司 通信方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123381A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 切换失败的处理方法及终端
CN102695222A (zh) * 2011-03-24 2012-09-26 中兴通讯股份有限公司 一种本地访问业务的切换方法及***
WO2018014783A1 (zh) * 2016-07-18 2018-01-25 电信科学技术研究院 一种传输数据方法和设备
CN108684218A (zh) * 2017-03-13 2018-10-19 华为技术有限公司 切换方法和装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4821471B2 (ja) * 2006-07-12 2011-11-24 日本電気株式会社 移動通信システム、基地局及び移動局並びにプログラム
US8504046B2 (en) * 2008-01-03 2013-08-06 Telefonaktiebolaget Lm Ericsson (Publ) Fast radio link recovery after handover failure
CN102804850B (zh) * 2009-06-26 2015-06-10 Lg电子株式会社 在无线通信***中在切换失败时记录测量结果的方法
US9699822B2 (en) * 2012-11-01 2017-07-04 Lg Electronics Inc. Method and apparatus for transmitting message in wireless communication system
WO2017149361A1 (en) * 2016-03-04 2017-09-08 Telefonaktiebolaget L M Ericsson (Publ) Handover notification
WO2017183884A1 (en) * 2016-04-19 2017-10-26 Lg Electronics Inc. Method for handling failure of handover procedure in wireless communication system and apparatus therefor
WO2018062786A1 (ko) * 2016-09-28 2018-04-05 엘지전자 주식회사 Srb를 제어하는 방법 및 장치
EP3603193B1 (en) 2017-03-22 2023-08-16 InterDigital Patent Holdings, Inc. Phased reconfiguration in wireless systems
US11184938B2 (en) * 2017-03-24 2021-11-23 Lg Electronics Inc. Method and device for requesting RRC connection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123381A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 切换失败的处理方法及终端
CN102695222A (zh) * 2011-03-24 2012-09-26 中兴通讯股份有限公司 一种本地访问业务的切换方法及***
WO2018014783A1 (zh) * 2016-07-18 2018-01-25 电信科学技术研究院 一种传输数据方法和设备
CN108684218A (zh) * 2017-03-13 2018-10-19 华为技术有限公司 切换方法和装置

Also Published As

Publication number Publication date
KR20210138648A (ko) 2021-11-19
CA3134505A1 (en) 2020-10-01
JP2022528327A (ja) 2022-06-10
EP3930362A4 (en) 2022-03-23
CN113316947A (zh) 2021-08-27
EP3930362B1 (en) 2023-05-31
US20220007449A1 (en) 2022-01-06
ES2950979T3 (es) 2023-10-17
BR112021018878A2 (pt) 2021-11-30
CN113747532B (zh) 2023-06-06
JP7312846B2 (ja) 2023-07-21
EP3930362A1 (en) 2021-12-29
CN113747532A (zh) 2021-12-03

Similar Documents

Publication Publication Date Title
AU2015414056B2 (en) Method and device for anchor replacement
WO2020220309A1 (zh) 用于小区切换的方法及设备
US11968575B2 (en) Data transmission method, communication apparatus, and communication system
WO2020164018A1 (zh) 用于小区切换的方法及设备
WO2021000289A1 (zh) 用于传输小数据的方法及设备
WO2019237763A1 (zh) 一种rlf的处理方法及装置、通信设备
WO2020154994A1 (zh) 小区切换方法、终端设备和网络设备
WO2020155070A1 (zh) 用于切换网络设备的方法和终端设备
WO2022062824A1 (zh) 定时提前补偿方法、基站、终端和存储介质
US10993158B2 (en) Mobile terminal apparatus, base station apparatus, communication system, and communication control method
WO2020220238A1 (zh) 用于小区切换的方法及设备
WO2020155120A1 (zh) 无线通信的方法和设备
US11805563B2 (en) Wireless communication method and base station
US20220007449A1 (en) Wireless communication method, terminal device and network device
WO2020248283A1 (zh) 无线通信方法、装置和终端设备
WO2021031012A1 (zh) 用于小区切换的方法及设备
WO2020155157A1 (zh) 切换过程中安全信息的处理方法及装置、网络设备、终端
WO2020163999A1 (zh) 无线通信的方法和设备
US20220174558A1 (en) Information processing method and terminal device
TW202008842A (zh) 一種保證數傳輸可靠性的方法及裝置
CN115706645A (zh) Ul定位参考信号的激活方法、装置、终端及网络侧设备
WO2021114103A1 (zh) 建立双连接的方法和通信装置
WO2020223972A1 (zh) 一种无线资源控制消息的处理方法、设备及存储介质
WO2020258245A1 (zh) 一种用于切换的信息处理方法、网络设备
TW202025692A (zh) 一種數據傳輸方法、設備及儲存媒介

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19921034

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3134505

Country of ref document: CA

ENP Entry into the national phase

Ref document number: 2021556923

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112021018878

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 20217032265

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2019921034

Country of ref document: EP

Effective date: 20210921

ENP Entry into the national phase

Ref document number: 112021018878

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20210922