WO2020248283A1 - 无线通信方法、装置和终端设备 - Google Patents
无线通信方法、装置和终端设备 Download PDFInfo
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- WO2020248283A1 WO2020248283A1 PCT/CN2019/091409 CN2019091409W WO2020248283A1 WO 2020248283 A1 WO2020248283 A1 WO 2020248283A1 CN 2019091409 W CN2019091409 W CN 2019091409W WO 2020248283 A1 WO2020248283 A1 WO 2020248283A1
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- terminal device
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- timer
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- establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
Definitions
- the embodiments of the present application relate to the field of communication, and more specifically, to wireless communication methods, devices, and terminal devices.
- the UE in order to ensure the communication quality of the terminal equipment (User Equipment), the UE first selects the cell when the radio link fails or the cell handover fails. If the selected cell is not a pre-configured Conditional Handover (CHO) For candidate cells, the UE initiates a radio resource control (Radio Resource Control, RRC) connection re-establishment process.
- RRC Radio Resource Control
- the wireless communication method, device, and terminal equipment provided in the embodiments of the present application can reduce the time for RRC connection re-establishment.
- a wireless communication method including: a terminal device selects a first cell to be accessed from at least one cell; when the terminal device can access the first cell in a conditional handover CHO access mode In a cell, the terminal device tries the CHO execution process; when the terminal device cannot access the first cell in the CHO access mode, the terminal device uses the first cell to reestablish the RRC connection .
- a wireless communication device including: a selection module, used to select a first cell to be accessed from at least one cell; an execution module, used when the terminal device can switch CHO access conditions When accessing to the first cell in the CHO access mode, the terminal device tries to perform the CHO process; the reconstruction module is used to use the first cell when the terminal device cannot access the first cell in the CHO access mode.
- the cell performs RRC connection reestablishment.
- a terminal device including the device in the second aspect or in each of its implementation manners.
- a communication device including a processor and a memory.
- the memory is used to store a computer program
- 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 chip is provided, which is used to implement the method in the first aspect or its implementation manners.
- 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 the method in the first aspect or its implementation manners.
- a computer-readable storage medium for storing a computer program that enables a computer to execute the method in the first aspect or its implementation manners.
- a computer program product including computer program instructions, which cause a computer to execute the method in the first aspect or its implementation manners.
- a computer program which, when run on a computer, causes the computer to execute the method in the first aspect or its implementation manners.
- the terminal device when the terminal device selects the first cell to be accessed and cannot access the first cell in the CHO access mode, the first cell is used to reestablish the RRC connection, because the terminal device is performing When the RRC connection is re-established, the first cell selected before the RRC connection is re-established is used for the re-establishment, so the delay caused by the selection process of additional cells can be avoided, the RRC connection re-establishment time can be speeded up, and the data interruption can be reduced. time.
- FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
- FIG. 2 is a handover flowchart provided by an embodiment of the present application.
- FIG. 3 is a flow chart of a handover based on conditional trigger provided by an embodiment of the present application
- Figure 4a is a schematic diagram of an RRC connection re-establishment provided by an embodiment of the present application.
- Figure 4b is a schematic diagram of another RRC connection re-establishment provided by an embodiment of the present application.
- FIG. 5 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
- FIG. 6 is another schematic flowchart of a wireless communication method provided by an embodiment of the present application.
- FIG. 7 is another schematic flowchart of a wireless communication method provided by an embodiment of the present application.
- FIG. 8 is still another schematic flowchart of a wireless communication method provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a wireless communication device provided by an embodiment of the present application.
- FIG. 10 is another schematic structural diagram of a wireless communication device provided by an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
- FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a chip provided by 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
- D2D Device to Device
- M2M Machine to Machine
- MTC machine type communication
- V2V vehicle to vehicle
- the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
- CA Carrier Aggregation
- DC dual connectivity
- SA standalone
- the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
- the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
- the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
- the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
- BTS Base Transceiver Station
- NodeB, NB base station
- LTE Long Term Evolutional Node B
- eNB evolved base station
- CRAN Cloud Radio Access Network
- the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
- the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
- the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections ; 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 transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
- PSTN public switched telephone networks
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL Digital Subscriber Line
- DSL
- 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”.
- 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.
- PCS Personal Communications System
- GPS Global Positioning System
- 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
- direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
- the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
- NR New Radio
- Figure 1 exemplarily shows one network device and two terminal devices.
- the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
- the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
- network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
- the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
- the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
- the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
- the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
- the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
- the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
- 5G The main application scenarios of 5G can include: enhanced Mobile Broadband (eMBB), low-latency and high-reliability communication (URLLC), and massive machine type communication (mMTC) .
- eMBB still aims for 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, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized and can be analyzed in detail in conjunction with specific deployment scenarios.
- Typical applications of URLLC can include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
- Typical characteristics of mMTC can include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
- NR can also be deployed independently.
- the RRC status in the 5G network environment can include RRC idle (RRC_IDLE) state, RRC connected (RRC_CONNECTED) state, and RRC inactive (RRC_INACTIVE state).
- RRC_IDLE RRC idle
- RRC_CONNECTED RRC connected
- RRC_INACTIVE RRC inactive
- the RRC in the RRC_IDLE state has not established a connection
- the RRC in the RRC_CONNECTED state has established a connection.
- Mobility is UE-based cell selection and reselection, paging is initiated by Core Network (CN), and the paging area is configured by CN.
- CN Core Network
- UE AS UE Access Stratum
- RRC_CONNECTED There is an RRC connection, and there is a UE AS context between the base station and the UE.
- the network side knows that the location of the UE is of a specific cell level. Mobility is the mobility controlled by the network side. Unicast data can be transmitted between the UE and the base station.
- Mobility is based on UE-based cell selection and reselection.
- the UE AS context is stored on a certain base station, and the paging is received by the radio.
- the radio access network (RAN) triggers, the RAN-based paging area is managed by the RAN, and the network side knows that the location of the UE is based on the RAN paging area level.
- RAN radio access network
- the NR system can support the handover process of the terminal equipment in the connected state. For example, when users who are using network services move from one cell to another, or due to wireless transmission traffic adjustment, activation operation and maintenance, equipment failure, etc., in order to ensure communication continuity and service quality, the system can The communication link between the user and the original cell is transferred to the new cell, that is, the handover process is performed.
- the entire switching process can be divided into three stages.
- the entire handover process will be described below with reference to FIG. 2.
- the first stage, handover preparation (201 ⁇ 205)
- 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 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 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 to release the terminal device context. At this point, the switch is complete.
- the UE After receiving the handover command, the UE can start the T304 timer, start downlink synchronization to the target cell, obtain the MIB information of the target cell, and then initiate random access. During the random access process, multiple preamble retransmissions can be allowed until the random access is successful. If the T304 timer expires, the handover fails and the UE triggers the RRC connection re-establishment process.
- FIG. 3 is a flow chart of cell handover triggered by conditions.
- the basic principle is that the network equipment pre-configures the UE with CHO candidate cells.
- the CHO candidate cells can be some cells with handover commands and handover execution conditions.
- the handover to the CHO candidate cell is executed according to the pre-configured handover command (that is, the random access process is triggered and the handover complete message is sent), so as to avoid entering the network coverage due to high-speed movement In poor areas, it is too late or unable to send measurement reports and receive handover commands.
- the pre-configured handover command that is, the random access process is triggered and the handover complete message is sent
- the cell handover may fail. If the cell handover triggered by the condition fails, the UE can perform cell selection. If the selected cell is a CHO candidate cell, the UE can try the CHO execution process. If the selected cell is not a CHO candidate cell, the UE can perform the RRC connection reestablishment process.
- the UE can perform cell selection. If the selected cell is a CHO candidate cell, the UE can try the CHO execution process. If the selected cell is not a CHO candidate cell, the UE can perform RRC connection reconstruction process.
- Figure 4a shows a schematic diagram of the RRC connection re-establishment process, and the entire process will be described below in conjunction with Figure 4a.
- the UE sends an RRC Connection Reestablishment Request (RRC Connection Reestablishment Request, RRC-CRR) message to the network device.
- RRC Connection Reestablishment Request RRC Connection Reestablishment Request, RRC-CRR
- the network device performs security parameter authentication, and if the UE's security parameter authentication information is consistent with that of the network device, the UE authentication is passed.
- the network equipment can release the original resources, and after re-admission and resource allocation, according to its instructions, send uplink messages on the allocated uplink resources; the network equipment is on the Common Control Channel (CCCH) Send an RRC Connection Reestablishment (RRC-CR) message to the UE, and the message carries information about the newly allocated resources.
- CCCH Common Control Channel
- RRC-CR RRC Connection Reestablishment
- the UE after the UE receives the RRC-CR message, it can reconfigure radio resources according to the message instructions, activate encryption and integrity protection, and can send an RRC Connection Reestablishment Complete (RRC Connection Reestablishment Complete, RRC-CRC) message to the network equipment.
- RRC Connection Reestablishment Complete RRC Connection Reestablishment Complete
- Figure 4b shows the RRC reestablishment, returning to the schematic diagram of RRC establishment. The whole process will be described below in conjunction with Figure 4b.
- the UE sends an RRC-CRR message to the network device.
- the network device sends an RRC Setup (RRC Setup, RRC-S) message to the UE.
- RRC Setup RRC Setup, RRC-S
- the UE sends an RRC Setup Complete (RRC Setup Complete, RRC-SC) message to the network device.
- RRC Setup Complete RRC Setup Complete, RRC-SC
- the UE after UE radio link failure or cell handover fails, the UE first performs cell selection. If the selected cell is a CHO candidate cell, the UE tries to perform the CHO process; if the selected cell is not a CHO candidate cell, the UE starts RRC Connection reconstruction process. During the RRC connection re-establishment process, cell selection is still performed, which leads to a prolonged RRC connection re-establishment time.
- the RRC connection re-establishment process will first call the initialization process, and the cell selection process will still be performed during the initialization process, so that it is possible that the selected cell is different from the previously selected cell, and the UE still needs to judge whether it is a CHO candidate cell again; in addition, Cell selection requires a certain amount of time, and performing additional cell selection may prolong the connection reestablishment time, which may increase the RRC connection reestablishment time.
- the embodiments of the present application provide the following solutions, which can speed up the RRC re-establishment time, thereby reducing the data interruption time.
- the method 500 may include steps 510-530.
- the terminal device selects a first cell to be accessed from at least one cell.
- the terminal device selects the first cell to be accessed from at least one cell.
- the first cell may be a CHO candidate cell pre-configured by the terminal device, or may not be a CHO candidate cell pre-configured by the terminal device.
- At least one cell in the implementation of this application may be multiple CHO candidate cells, or multiple non-CHO candidate cells, or some CHO candidate cells and some non-CHO candidate cells, which is not specifically limited in this application.
- the terminal device when the terminal device selects the first cell to be accessed, the terminal device may select when the radio link fails, or the terminal device may select when the cell handover fails.
- cell handover failure includes traditional cell handover failure and condition-based cell handover failure.
- the terminal device When the terminal device can access the first cell in a CHO access mode, the terminal device tries a CHO execution process.
- the terminal device uses the first cell to perform RRC connection reestablishment.
- the terminal device if the terminal device can access the first cell in the CHO access mode, the terminal device tries the CHO execution process to access the first cell; if the terminal device cannot access the first cell in the CHO access mode In the case of a cell, the terminal equipment uses the first cell to reestablish the RRC connection. At this time, the terminal equipment accesses the first cell in a connection mode of the RRC connection reestablishment.
- the terminal device when the terminal device selects the first cell to be accessed and cannot access the first cell in the CHO access mode, the first cell is used to reestablish the RRC connection, because the terminal device When the RRC connection is re-established, the first cell selected before the RRC connection is re-established is used for the re-establishment. Therefore, the delay caused by the selection process of additional cells can be avoided, and the RRC connection re-establishment time can be accelerated, thereby reducing Data interruption time.
- the CHO candidate cells in the embodiments of this application are some CHO candidate cells that the network equipment configures for the terminal equipment in advance. Each candidate cell of these CHO candidate cells may have a specific handover command and handover execution condition.
- the first cell to be accessed is a CHO candidate cell, and the terminal device can try to perform the CHO process and access the first cell so that the terminal device can perform data communication.
- the terminal device may not be able to successfully access the first cell.
- the CHO candidate cell configured by the network device to the terminal device has specific handover commands and handover execution conditions.
- the handover execution conditions can be, for example, cell type, data rate, cell coverage, call reach rate, channel quality, etc.
- the terminal device can first evaluate whether the current state meets the execution conditions of the CHO candidate cell, and when the terminal device evaluates that the current state can meet the execution conditions of the CHO candidate cell , The CHO execution process can be performed; when the terminal device evaluates that the current state cannot meet the execution conditions of the CHO candidate cell, the terminal device can perform cell selection again. If the selected cell is a CHO candidate cell, the terminal device can evaluate and judge again; if the selected cell is a non-CHO candidate cell, the terminal device can use the selected cell to reestablish the RRC connection.
- the terminal device may also fail to re-establish the RRC connection.
- the RRC may be in the RRC_IDLE state and may notify the Non-Access Stratum (NAS) of this RRC
- NAS Non-Access Stratum
- the terminal device when the terminal device selects the first cell from at least one cell, it can also directly select from the CHO candidate cells. Since the selected first cell is a cell among the CHO candidate cells, The terminal device can access the first cell in the CHO access mode, which can further reduce the time for cell selection.
- FIG. 6 a schematic flowchart of a wireless communication method 600 according to an embodiment of the present application is shown, and the method 600 may include steps 610-640.
- the terminal device receives configuration information sent by the network device, where the configuration information is used to indicate a CHO candidate cell.
- the terminal device selects a first cell to be accessed from at least one cell.
- the terminal device When the terminal device can access the first cell in a CHO access mode, the terminal device tries a CHO execution process.
- the terminal device uses the first cell to perform RRC connection reestablishment.
- the network device can configure the terminal device with CHO candidate cells in advance, and the configured CHO candidate cell can be indicated to the terminal device in the form of configuration information. After the terminal device receives the configuration information sent by the network device, it can Know the CHO candidate cells configured by the network equipment to facilitate subsequent cell selection.
- steps 620-640 in the wireless communication method 600 of the embodiment of the present application may be the same as steps 510-530 in the wireless communication method 500.
- the terminal device when the terminal device cannot access the selected first cell in the CHO access mode, the first cell will be used to reestablish the RRC connection.
- the following will introduce the process of the terminal device using the first cell to reestablish the RRC connection.
- the terminal device determines the first cell as the target cell to perform the RRC connection re-establishment.
- the first cell selected by the terminal equipment before the RRC connection re-establishment can be used as the target cell in the RRC connection re-establishment process, and then the target cell is used for RRC.
- the connection is rebuilt.
- the terminal device when the terminal device performs the RRC connection re-establishment, the cell selected before the RRC connection re-establishment is used as the target cell in the initialization process of the RRC connection re-establishment, so it can avoid the problem of performing additional cells.
- the delay caused by the selection process can speed up the RRC connection re-establishment time, thereby reducing the data interruption time.
- the terminal device selects the cell selected before the RRC connection re-establishment as the target cell in the initialization process of the RRC connection re-establishment, which can avoid the terminal device needing to judge whether the selected cell is a CHO candidate cell again, and can further simplify the behavior of the terminal device.
- the terminal device determining the first cell as the target cell includes: the terminal device starts a first timer; and responding to the first When the timer is started, the terminal device determines the first cell as the target cell; in response to the terminal device determining the target cell, the first timer is stopped.
- the terminal device may start the first timer during the initialization process of the RRC connection reestablishment, and the terminal device, in response to the start of the first timer, determines the first cell as the target cell for the RRC connection reestablishment After the terminal device determines the target cell, the terminal device may stop the first timer in response to the target cell determined by the terminal device.
- the first timer in the embodiment of the present application may be timer T311, or may be another timer that can trigger the terminal device to perform cell selection, which is not specifically limited in the present application.
- the first timer in response to the start of the first timer, is determined as the target cell. It can be understood that when the terminal device starts the first timer, the terminal device can initiate the RRC connection reestablishment process. The first cell previously selected is determined as the target cell for RRC connection re-establishment. Compared with the cell selection performed by the terminal equipment in the RRC connection re-establishment initialization process in the prior art, the RRC connection re-establishment time can be reduced, and the terminal equipment will The first cell is determined as the target cell, which can simplify the behavior of the terminal device.
- the target cell determined by the terminal device during the initialization process of the RRC connection reestablishment is the cell selected by the terminal device before the RRC connection reestablishment initialization process.
- the terminal device can determine the target cell almost within 0 seconds, which can reduce the RRC connection re-establishment time. After the terminal device determines the target cell, the first timer is then stopped.
- the terminal device can suspend all radio bearers (Radio Bearer, RB) except for the Signaling Radio Bearer (Signaling Radio Bearer 0, SRB0); reset the media access Control (Media Access Control, MAC); if the secondary cell (Master Cell Group SCell, MCG SCell) of the primary cell group is configured, the configured MCG SCell(s) can be released; release the current dedicated serving cell (Serving Cell, SC) ) Configuration; if the delay budget reporting configuration is configured (delay Budget Reporting Configuration), you can release the delay budget report configuration, if the timer T342 is running, you can stop the timer T342; if the overheating assistance configuration (overheating assistance configuration) is configured, you can Release the overheating auxiliary configuration. If the timer T345 is running, you can stop the timer T345.
- Radio Bearer Radio Bearer
- SRB0 Signaling Radio Bearer
- the terminal device may not need to release the configuration involved in the above process, or stop the timer T342. And T345. At this time, for the terminal device, after releasing the current dedicated SC configuration and determining the target cell, the first timer can be stopped.
- the terminal device may start the second timer in response to stopping the first timer, and the second timer can trigger the RRC reestablishment request message.
- the second timer in the embodiment of this application may be timer T301, or may be another timer that can trigger the terminal device to perform the RRC re-establishment request message, which is not specifically limited in this application.
- the terminal device may send an RRC connection reestablishment request message to the target cell.
- the message may carry the reason for the RRC connection reestablishment.
- the RRC connection reestablishment request message The reasons for reconstruction may be different. For example, the reason for the rebuild triggered by the failure of the terminal device switch may be "handover failure”; the reason for the rebuild triggered by the wireless link failure may be "other failure”; the reason for the rebuild triggered by the reconfiguration failure It may be "reconfiguration failure".
- the target cell may send an RRC connection re-establishment message to the terminal device, where the RRC connection re-establishment message carries information about newly allocated resources.
- the terminal device can reallocate radio resources according to the message indication, and activate encryption and integrity protection. The terminal device sends an RRC connection reestablishment complete message to the target cell.
- FIG. 7 is a schematic flowchart of a specific implementation manner of the foregoing method. As shown in Figure 7, steps 702-714 may be included.
- a wireless link failure or a cell handover failure occurs in the terminal device.
- the terminal device selects the first cell.
- the terminal device judges whether the selected first cell is a CHO candidate cell.
- the terminal device If the first cell selected by the terminal device is a CHO candidate cell, perform CHO handover.
- the terminal device sends a reconfiguration complete message to the network device.
- the terminal device selects the first cell as the target cell in the RRC connection reestablishment initialization process, and completes the RRC connection reestablishment.
- the terminal device may start the first timer during the initialization process of the RRC connection reestablishment, and the terminal device, in response to the start of the first timer, determines the first cell as the target cell in the RRC connection reestablishment initialization process , For the RRC connection reestablishment, after the terminal device determines the target cell, the terminal device may stop the first timer in response to the target cell determined by the terminal device.
- the terminal device can start the second timer for triggering the RRC reestablishment request message; the terminal device can send the RRC connection reestablishment request message to the target cell; the target cell receives the RRC connection reestablishment sent by the terminal device After the request message, the RRC connection re-establishment message can be sent to the terminal device; after the terminal device receives the RRC connection re-establishment message sent by the target cell, it can reallocate radio resources according to the message instructions to activate encryption and integrity protection; the terminal device sends to the target cell RRC connection re-establishment complete message.
- the first timer used to trigger the selection of the target cell is not started.
- the first timer used to trigger the selection of the target cell may not be started.
- the terminal device may determine the cell selected before the RRC connection re-establishment initialization process as the target cell for the RRC connection re-establishment.
- the terminal device may not need to select a cell when the first timer is not started during the initialization process of the RRC connection reestablishment.
- the cell selected before the RRC connection reestablishment initialization process may be determined as the target cell in the RRC connection reestablishment initialization process.
- the terminal device since the terminal device does not start the first timer for triggering the selection of the target cell, the terminal device can determine the cell selected before the RRC connection re-establishment initialization process as the target cell, compared with the prior art , Can reduce the RRC connection re-establishment time, which can reduce the data interruption time.
- the terminal device using the first cell to perform RRC connection re-establishment includes: in response to the completion of the release of the current dedicated serving cell configuration configured by the terminal device, the terminal device starts the Trigger the second timer of the RRC connection re-establishment request message, or in response to the completion of the release of the delayed budget report configuration of the terminal device, the terminal device starts the second timer used to trigger the RRC connection re-establishment request message, or in response to Stop the running T342 timer, the terminal device starts the second timer used to trigger the RRC connection re-establishment request message, or in response to the completion of the overheating assistance configuration release of the terminal device, the terminal device starts to trigger the RRC The second timer of the connection re-establishment request message, or in response to stopping the running T345 timer, the terminal device starts the second timer used to trigger the RRC connection re-establishment request message.
- the second timer may be started according to the relevant configuration performed by the network to the terminal device or whether the relevant timer is running. For example, it may respond to the completion of the release of the current dedicated serving cell configuration of the terminal device, or in response to stopping the running The T342 timer, or in response to the completion of the release of the overheating assistance configuration of the terminal device, or in response to stopping the running T345 timer, starts the second timer.
- the terminal device using the first cell to perform RRC connection re-establishment includes:
- the network device does not configure the delay budget report configuration and the overheating assistance configuration to the terminal device, and the T342 timer and the T345 timer are not running, in response to the completion of the release of the current dedicated service cell configuration of the terminal device, The terminal device starts the second timer used to trigger the RRC connection re-establishment request message, or
- the network device has configured the delay budget report configuration to the terminal device and has not configured the overheating assistance configuration, and the T342 timer and the T345 timer are not running, respond to the The delay budget report configuration release of the terminal device is completed, and the terminal device starts the second timer for triggering the RRC connection re-establishment request message, or
- the terminal device In the case that the network device does not configure the overheating assistance configuration to the terminal device, and the T342 timer is running and the T345 timer is not running, in response to stopping the T342 timer, the terminal device Start the second timer used to trigger the RRC connection re-establishment request message, or
- the terminal device in response to the completion of the release of the overheating assistance configuration of the terminal device, the terminal device starts the Trigger the second timer of the RRC connection re-establishment request message, or
- the terminal device in response to stopping the T345 timer, the terminal device starts a second timer for triggering the RRC connection re-establishment request message.
- the second timer may be started during the RRC connection re-establishment process. Specifically, if the network device does not configure the delay budget report configuration and the overheating assistance configuration to the terminal device, and the timer T342 and the timer T345 are not running, the terminal device may start the second timer in response to releasing the current dedicated SC configuration.
- the second timer can be started according to the configuration performed on the terminal device by the network device. For example, if the network device configures the delay budget report configuration to the terminal device, the overheating assistance configuration is not configured, and the timers T342 and T345 are not running, the terminal device may start the second timer in response to releasing the delay budget report configuration.
- the network device does not configure the overheating assistance configuration to the terminal device, the timer T342 is running and the timer T345 is not running. At this time, the second timer can be started in response to stopping the timer T342. In this process, the network device may pre-configure the delay budget report configuration to the terminal device, or the delay budget report configuration may not be pre-configured, which is not specifically limited in this application.
- the terminal device can respond to the release of the overheating auxiliary configuration.
- the network device may pre-configure the delay budget report configuration to the terminal device, or the delay budget report configuration may not be pre-configured, and the timer T342 may or may not run.
- the second timer can be started in response to stopping the timer T345. It should be understood that during this process, the timer T342 may or may not be running, and the network device may pre-configure the delay budget report configuration and/or the overheating assistance configuration to the terminal device, or may not pre-configure the delay budget report configuration and/or The overheating auxiliary configuration is not specifically limited in this application.
- the terminal device after the terminal device starts the second timer, the terminal device sends an RRC connection reestablishment request message to the target cell.
- the message may carry the reason for the RRC connection reestablishment.
- the RRC connection reestablishment request message The reason for the reconstruction may be different.
- the reason for the rebuild triggered by the failure of the terminal device switch may be "handover failure”; the reason for the rebuild triggered by the wireless link failure may be "other failure”; the reason for the rebuild triggered by the failure of the reconfiguration may be It is "reconfiguration failure".
- the target cell may send an RRC connection re-establishment message to the terminal device, and the RRC connection re-establishment message may carry information about newly allocated resources.
- the terminal device can reallocate radio resources according to the message indication, and activate encryption and integrity protection. The terminal device sends an RRC connection reestablishment complete message to the target cell.
- FIG. 8 is a schematic flowchart of a specific implementation manner of the foregoing method. As shown in Figure 8, steps 802-814 may be included.
- a wireless link failure or a cell handover failure occurs in the terminal device.
- the terminal device selects the first cell.
- the terminal device judges whether the selected first cell is a CHO candidate cell.
- the terminal device If the first cell selected by the terminal device is a CHO candidate cell, perform CHO handover.
- the terminal device sends a reconfiguration complete message to the network device.
- the terminal device If the first cell selected by the terminal device is not a CHO candidate cell, perform RRC connection reestablishment.
- the terminal device skips cell selection and uses the first cell as the target cell in the RRC connection reestablishment initialization process, and completes the RRC connection reestablishment.
- the first timer used to trigger the selection of the target cell may not be started.
- the terminal device can skip cell selection and determine the cell selected before the RRC connection re-establishment initialization process as the target cell for the RRC connection re-establishment.
- the terminal device may determine whether to trigger the start of the second timer of the RRC connection re-establishment request message according to whether the related timer configured to the terminal device in advance by the network device is running. Specifically, if the network device does not configure the delay budget report configuration and the overheating assistance configuration to the terminal device, and the timer T342 and the timer T345 are not running, the terminal device can start the second timer in response to releasing the current dedicated SC configuration.
- the second timer can be started according to the configuration performed on the terminal device by the network device. For example, if the network device configures the delay budget report configuration to the terminal device, the overheating assistance configuration is not configured, and the timers T342 and T345 are not running, the terminal device may start the second timer in response to releasing the delay budget report configuration.
- the network device does not configure the overheating assistance configuration to the terminal device, the timer T342 is running and the timer T345 is not running. At this time, the second timer can be started in response to stopping the timer T342. In this process, the network device may pre-configure the delay budget report configuration to the terminal device, or the delay budget report configuration may not be pre-configured, which is not specifically limited in this application.
- the terminal device can respond to the release of the overheating auxiliary configuration.
- the network device may pre-configure the delay budget report configuration to the terminal device, or the delay budget report configuration may not be pre-configured, and the timer T342 may or may not run.
- the second timer can be started in response to stopping the timer T345. It should be understood that during this process, the timer T342 may or may not be running, and the network device may pre-configure the delay budget report configuration and/or the overheating assistance configuration to the terminal device, or may not pre-configure the delay budget report configuration and/or The overheating auxiliary configuration is not specifically limited in this application.
- the cell selected before the initialization process is selected for the RRC connection reestablishment, which can avoid the additional execution of cell selection during the RRC connection reestablishment initialization process
- the resulting delay can speed up the RRC connection re-establishment time, thereby reducing the data interruption time.
- the terminal device selects the cell selected before the initialization process for RRC connection re-establishment, it can avoid the terminal device from needing to judge whether the selected cell is a CHO candidate cell again, thereby further simplifying the behavior of the terminal device.
- FIG. 9 is a wireless communication device 900 according to an embodiment of the present application.
- the wireless communication device 900 may include a selection module 910, an execution module 920, and a reconstruction module 930.
- the selection module 910 is configured to select the first cell to be accessed from at least one cell.
- the execution module 920 when the terminal device can access the first cell in the CHO access mode, the terminal device tries the CHO execution process.
- the re-establishment module 930 is configured to use the first cell to reestablish an RRC connection when the terminal device cannot access the first cell in the CHO access mode.
- the wireless communication device 1000 may include a receiving module 1010, a selection module 1020, an execution module 1030, and a reconstruction module 1040. .
- the receiving module 1010 is configured to receive configuration information sent by a network device, where the configuration information is used to indicate a CHO candidate cell.
- the selection module 1020 is configured to select the first cell to be accessed from at least one cell.
- the execution module 1030 when the terminal device can access the first cell in the CHO access mode, the terminal device tries the CHO execution process.
- the re-establishment module 1040 is configured to perform RRC connection re-establishment using the first cell when the terminal device cannot access the first cell in the CHO access mode.
- the selection module 1020 in the embodiment of the present application may be the same as the selection module 910 in the wireless communication device 900
- the execution module 1030 may be the same as the execution module 920 in the wireless communication device 900
- the reconstruction module 1040 may be the same as the selection module 910 in the wireless communication device 900.
- the reconstruction module 930 is the same.
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: in the initialization process of the RRC connection reconstruction, the terminal device determines the first cell as a target cell to perform RRC The connection is rebuilt.
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: start a first timer; in response to the start of the first timer, determine the first cell as the Target cell; in response to determining the target cell, stop the first timer.
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: in response to stopping the first timer, start a second timer for triggering the RRC reconstruction request message.
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: in the initialization process of the RRC connection, the first timer used to trigger the target cell selection is not started.
- the re-establishment module 930 or the re-establishment module 1040 is specifically configured to: in response to the completion of the release of the current dedicated serving cell configuration of the terminal device, the terminal device starts to trigger an RRC connection re-establishment request The second timer of the message, or in response to the completion of the release of the delayed budget report configuration of the terminal device, the terminal device starts the second timer for triggering the RRC connection re-establishment request message, or in response to stopping the running T342
- the terminal device starts the second timer used to trigger the RRC connection re-establishment request message, or in response to the completion of the release of the overheating assistance configuration of the terminal device, the terminal device starts the second timer used to trigger the RRC connection re-establishment request message
- the second timer or in response to stopping the running T345 timer, starts the second timer used to trigger the RRC connection re-establishment request message.
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: when the network device does not configure the terminal device with the delay budget report configuration and the overheating assistance configuration, and the T342 timer and the T345 timing When the device is not running, in response to the completion of the release of the current dedicated serving cell configuration of the terminal device, the second timer for triggering the RRC connection re-establishment request message is started, or the network device has configured the terminal device When the delayed budget report is configured and the overheat assist configuration is not configured, and the T342 timer and the T345 timer are not running, in response to the completion of the release of the delayed budget report configuration of the terminal device, start The second timer used to trigger the RRC connection re-establishment request message, or when the network device does not configure the overheating assistance configuration to the terminal device, and the T342 timer is running and the T345 timer is not running Next, in response to stopping the T342 timer, start the second timer for
- the reconstruction module 930 or the reconstruction module 1040 is specifically configured to: send an RRC reconstruction request message to the target cell; receive an RRC reconstruction message sent by the target cell; send an RRC reconstruction message to the target cell RRC reconstruction complete message.
- the selection module 910 is specifically configured to select the to-be-accessed cell from the at least one cell when the radio link of the terminal device fails or when the cell handover fails. The first cell.
- An embodiment of the present application also provides a terminal device 1100, as shown in FIG. 11, including a wireless communication device 1110.
- the wireless communication device 1110 may be any one of the above-mentioned wireless communication devices 900 or 1000.
- An embodiment of the present application also provides a communication device 1200, as shown in FIG. 12, including a processor 1210 and a memory 1220, the memory is used to store a computer program, the processor is used to call and run the computer stored in the memory The program executes the method according to any one of claims 1 to 10.
- the processor 1210 may call and run a computer program from the memory 1220 to implement the method in the embodiment of the present application.
- the memory 1220 may be a separate device independent of the processor 1210, or it may be integrated in the processor 1210.
- the communication device 1200 may further include a transceiver 1230, and the processor 1210 may control the transceiver 1230 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 1230 may include a transmitter and a receiver.
- the transceiver 1230 may further include an antenna, and the number of antennas may be one or more.
- the communication device 1200 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 1200 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. 13 is a schematic structural diagram of a chip of an embodiment of the present application.
- the chip 1300 shown in FIG. 13 includes a processor 1310, and the processor 1310 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
- the chip 1300 may further include a memory 1320.
- the processor 1310 may call and run a computer program from the memory 1320 to implement the method in the embodiment of the present application.
- the memory 1320 may be a separate device independent of the processor 1310, or it may be integrated in the processor 1310.
- the chip 1300 may further include an input interface 1330.
- the processor 1310 can control the input interface 1330 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
- the chip 1300 may further include an output interface 1340.
- the processor 1310 can control the output interface 1340 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 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, etc.
- 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
- DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
- 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 ,
- 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 ,
- I will not 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 .
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Abstract
本申请提供了一种无线通信的方法、装置和终端设备,包括:终端设备从至少一个小区中,选择待接入的第一小区;当所述终端设备能够以CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程;当所述终端设备不能以所述CHO接入方式接入到所述第一小区时,终端设备利用所述第一小区进行RRC连接重建。本申请实施例提供的方法,由于终端设备在进行RRC连接重建的时候,利用的是RRC连接重建之前所选择的第一小区进行重建,因此能够避免由于执行额外小区的选择过程所导致的延时,可以加快RRC连接重建时间,从而可以减少数据中断时间。
Description
本申请实施例涉及通信领域,并且更具体地,涉及无线通信方法、装置和终端设备。
目前,为了保证终端设备(User Equipment,)通信的质量,UE在无线链路失败时或小区切换失败时,UE先进行小区选择,如果选择的小区不是预配置的条件切换(Conditional Handover,CHO)候选小区,则UE启动无线资源控制(Radio Resource Control,RRC)连接重建过程。
发明内容
本申请实施例提供的无线通信的方法、装置和终端设备,能够减少RRC连接重建的时间。
第一方面,提供一种无线通信的方法,包括:终端设备从至少一个小区中,选择待接入的第一小区;当所述终端设备能够以条件切换CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程;当所述终端设备不能以所述CHO接入方式接入到所述第一小区时,所述终端设备利用所述第一小区进行RRC连接重建。
第二方面,提供一种无线通信的装置,包括:选择模块,用于从至少一个小区中,选择待接入的第一小区;执行模块,用于当所述终端设备能够以条件切换CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程;重建模块,用于当终端设备不能以CHO接入方式接入到所述第一小区时,利用所述第一小区进行RRC连接重建。
第三方面,提供一种终端设备,包括第二方面中或其各实现方式中的装置。
第四方面,提供一种通信设备,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。
第五方面,提供一种芯片,用于实现上述第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或其各实现方式中的方法。
第六方面,提供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或其各实现方式中的方法。
第七方面,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或其各实现方式中的方法。
第八方面,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或其各实现方式中的方法。
本申请实施例提供的无线通信的方法,在终端设备选择待接入的第一小区不能以CHO接入方式接入到第一小区时,利用第一小区进行RRC连接重建,由于终端设备在进行RRC连接重建的时候,利用的是RRC连接重建之前所选择的第一小区进行重建,因此能够避免由于执行额外小区的选择过程所导致的延时,可以加快RRC连接重建时间,从而可以减少数据中断时间。
图1是本申请实施例提供的一种通信***架构的示意性图;
图2是本申请实施例提供的一种切换流程图;
图3是本申请实施例提供的一种基于条件触发的切换流程图;
图4a是本申请实施例的提供的一种RRC连接重建的示意性图;
图4b是本申请实施例的提供的另一种RRC连接重建的示意性图;
图5是本申请实施例提供的无线通信方法的一个示意性流程图;
图6是本申请实施例提供的无线通信方法的另一个示意性流程图;
图7是本申请实施例提供的无线通信方法的又一个示意性流程图;
图8是本申请实施例提供的无线通信方法的再一个示意性流程图;
图9是本申请实施例提供的无线通信装置的一个示意性结构图;
图10是本申请实施例提供的无线通信装置的另一个示意性结构图;
图11是本申请实施例提供的终端设备的示意性结构图;
图12是本申请实施例提供的通信设备的示意性结构图;
图13是本申请实施例提供的芯片的示意性结构图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请的一部分实施例,而不是全部实施例。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的前提下所获得的所有其他实施例,都应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。
通常来说,传统的通信***支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信***将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),以及车辆间(Vehicle to Vehicle,V2V)通信等,本申请实施例也可以应用于这些通信***。
可选地,本申请实施例中的通信***可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
示例性的,本申请实施例应用的通信***100如图1所示。该通信***100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。可选地,该网络设备110可以是GSM***或CDMA***中的基站(Base Transceiver Station,BTS),也可以是WCDMA***中的基站(NodeB,NB),还可以是LTE***中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧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。
该通信***100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”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。
可选地,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。
可选地,5G***或5G网络还可以称为新无线(New Radio,NR)***或NR网络。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信***100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信***100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信***100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信***100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
下面对5G的发展以及可能应用的场景简单进行介绍。
当前,随着人们对速率、延迟、高速移动性、能效的追求以及未来生活中业务的多样性、复杂性,为此第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)国际标准组织开始研发5G。5G的主要应用场景可以包括:增强移动超宽带(enhanced Mobile Broadband,eMBB)、低时延高可靠通信(Ultra Reliable and Low Latency Communication,URLLC)、大规模机器类通信(massive Machine Type Communication,mMTC)。eMBB仍然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。另一方面,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,所以不能一概而论,可以结合具体的部署场景详细分析。URLLC的典型应用可以包括: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。mMTC 的典型特点可以包括: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。
在5G***中,NR也可以独立部署,5G网络环境中的RRC状态可以包括RRC空闲(RRC_IDLE)状态、RRC连接(RRC_CONNECTED)状态和RRC待用(RRC_INACTIVE状态)。其中,处于RRC_IDLE状态的RRC没有建立连接;处于RRC_CONNECTED状态的RRC建立了连接。以下对分别RRC的不同状态进行简单介绍。
-RRC_IDLE:移动性为基于UE的小区选择重选,寻呼由核心网(Core Network,CN)发起,寻呼区域由CN配置。基站侧不存在UE接入层(UE Access Stratum,UE AS)上下文。不存在RRC连接。
-RRC_CONNECTED:存在RRC连接,基站和UE存在UE AS上下文。网络侧知道UE的位置是具体小区级别的。移动性是网络侧控制的移动性。UE和基站之间可以传输单播数据。
-RRC_INACTIVE:移动性为基于UE的小区选择重选,存在核心网-新无线(Core Network-New Radio,CN-NR)之间的连接,UE AS上下文存在某个基站上,寻呼由无线接入网络(Radio Access Network,RAN)触发,基于RAN的寻呼区域由RAN管理,网络侧知道UE的位置是基于RAN的寻呼区域级别的。
与LTE***类似,NR***可以支持处于连接态的终端设备的切换过程。例如,当正在使用网络服务的用户从一个小区移动到另一个小区,或由于无线传输业务负荷量调整、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,***可以将该用户与原小区的通信链路转移到新的小区上,即执行切换过程。
以Xn接口切换过程为例,整个切换过程可以分为三个阶段。下面结合图2对整个切换过程进行描述。
第一阶段,切换准备(201~205)
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(206~208)
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(209~212)
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,并触发源基站释放终端设备上下文。至此,切换完成。
UE在收到切换命令后可以启动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。随机接入过程中可以允许多次前导码重传直至随机接入成功。如T304定时器超时,则切换失败,UE触发RRC连接重建过程。
上文提到由于无线传输业务负荷量调整、激活操作维护、设备故障等原因需要执行小区切换,目前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,从而引入了基于条件触发的小区切换。
如图3所示是基于条件触发的小区切换流程图,其基本原理是网络设备预先给UE配置CHO候选小区,该CHO候选小区可以为一些具有切换命令和切换执行条件的小区,UE根据网络设备配置的条件在评估与CHO候选小区相关的条件触发时按照预先配置好的切换命令执行向该CHO候选小区的切换(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网络覆盖差的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。
然而即使网络设备预先给UE配置了CHO候选小区,小区切换也有可能失败。若基于条件触发的小区切换失败,UE可以执行小区选择,如果选择的小区是CHO候选小区,则UE可以尝试CHO执行过程,如果选择的小区不是CHO候选小区,则UE可以执行RRC连接重建过程。
类似地,若无线链路失败或传统小区切换失败,UE可以执行小区选择,如果选择的小区是CHO候选小区,则UE可以尝试CHO执行过程,如果选择的小区不是CHO候选小区,则UE可以执行RRC连接重建过程。
以下将对RRC连接重建的过程进行简单描述。
如图4a所示为RRC连接重建过程的示意图,下面结合图4a对整个过程进行描述。
在410中,UE向网络设备发送RRC连接重建请求消息(RRC Connection Reestablishment Request,RRC-CRR)消息。
在411中,网络设备进行安全参数认证,如果UE的安全参数认证信息与网络设备的一致,则UE认证通过。UE身份认证后,网络设备将原资源可以释放,重新进行准入和资源分配后,根据其指示,在分配的上行资源上发送上行消息;网络设备在公共控制信道(Common Control Channel,CCCH)上向UE发送RRC连接重建(RRC Connection Reestablishment,RRC-CR)消息,消息中携带新分配资源的信息。
在412中,UE收到RRC-CR消息后,根据消息指示可以重新配置无线资源,激活加密和完整性保护,并且可以将RRC连接重建完成(RRC Connection Reestablishment Complete,RRC-CRC)消息发送给网络设备。
如图4b所示为RRC重建,退回到RRC建立的示意图,下面结合图4b对整个过程进行描述。
在420中,UE向网络设备发送RRC-CRR消息。
在421中,网络设备向UE发送RRC设置(RRC Setup,RRC-S)消息。
在422中,UE向网络设备发送RRC设置完成(RRC Setup Complete,RRC-SC)消息。
综上,UE在无线链路失败或小区切换失败后,UE先进行小区选择,如果选择的小区是CHO候选小区,则UE尝试执行CHO过程;如果选择的小区不是CHO候选小区,则UE启动RRC连接重建过程。在RRC连接重建过程中仍然会进行小区选择,导致RRC连接重建时间延长。
其中,RRC连接重建过程首先会调用初始化过程,而在初始化过程仍会执行小区选择过程,这样有可能选择的小区与之前选择的小区不同,UE仍需再次判断其是否为CHO候选小区;另外,小区选择需要一定的时间,执行额外的小区选择可能会延长连接重建的时间,从而可能会增加RRC连接重建时间。
因此,本申请实施例提供了以下的方案,能够加快RRC重建时间,从而可以减少数 据中断时间。
下面结合图5,对本申请实施提供的方案进行详细说明。
如图5所示,示出了根据本申请实施例的无线通信方法500的示意性流程图,该方法500可以包括步骤510-530。
510,终端设备从至少一个小区中,选择待接入的第一小区。
本申请实施例中,终端设备从至少一个小区中,选择待接入的第一小区。其中,第一小区可以是终端设备预先配置的CHO候选小区,也可以不是终端设备预先配置的CHO候选小区。
本申请实施中的至少一个小区可以是多个CHO候选小区,也可以是多个非CHO候选小区,还可以是部分CHO候选小区和部分非CHO候选小区,本申请对此不作具体限定。
本申请实施例中,终端设备在选择待接入的第一小区时,可以是在终端设备在无线链路失败时进行选择的,也可以是终端设备在进行小区切换失败时进行选择的,本申请对此不作具体限定。其中,小区切换失败包括传统的小区切换失败和基于条件触发的小区切换失败。
520,当所述终端设备能够以CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程。
530,当所述终端设备不能以CHO接入方式接入到所述第一小区时,所述终端设备利用所述第一小区进行RRC连接重建。
本申请实施例中,若终端设备能够以CHO接入方式接入到第一小区时,终端设备尝试CHO执行过程,接入到第一小区;若终端设备不能以CHO接入方式接入到第一小区时,终端设备利用第一小区进行RRC连接重建,此时终端设备以RRC连接重建的连接方式接入到第一小区。
在本申请实施例提供的无线通信的方法中,在终端设备选择待接入的第一小区不能以CHO接入方式接入到第一小区时,利用第一小区进行RRC连接重建,由于终端设备在进行RRC连接重建的时候,利用的是RRC连接重建之前所选择的第一小区进行重建,因此能够避免由于执行额外小区的选择过程所导致的延时,可以加快RRC连接重建时间,从而可以减少数据中断时间。
本申请实施例中的CHO候选小区为网络设备预先给终端设备配置的一些CHO候选小区,这些CHO候选小区中的每一个候选小区可以具有特定的切换命令和切换执行条件,当终端设备选择的待接入的第一小区为CHO候选小区,则终端设备可以尝试执行CHO过程,接入至第一小区中,以便于终端设备能够进行数据通信。
应理解,当终端设备选择的待接入的第一小区为CHO候选小区时,终端设备也可能不能成功接入到第一小区中。上文提到网络设备配置给终端设备的CHO候选小区是具有特定的切换命令和切换执行条件的,切换执行条件例如可以是,小区类型,数据速率,小区覆盖范围,呼叫达到率,信道质量等,当终端设备选择的第一小区为CHO候选小区时,终端设备可以首先评估此时的状态是否满足CHO候选小区的执行条件,当终端设备评估此时的状态能够满足CHO候选小区的执行条件时,可以进行CHO执行过程;当终端设备评估此时的状态不能够满足CHO候选小区的执行条件时,终端设备可以再次进行小区的选择。若选择的小区为CHO候选小区,终端设备可以再次进行评估判断;若选择的小区为非CHO候选小区,则终端设备可以利用所选择的小区进行RRC连接重建。
还应理解,终端设备在RRC连接重建的过程中,也有可能重建失败,这种情况下,RRC可能会处于RRC_IDLE状态,同时可能会通知非接入层(Non-Access Stratum,NAS)本次RRC连接重建失败,由NAS层决定后续的操作。
当然,在一些实施例中,终端设备在从至少一个小区中选择第一小区时,也可以直接选择从CHO候选小区中进行选择,由于所选择的第一小区为CHO候选小区中的小区, 因此终端设备能够以CHO接入方式接入到第一小区中,进一步地能够减少小区选择的时间。
可选地,在一些实施例中,如图6所示,示出了根据本申请实施例的无线通信方法600的示意性流程图,该方法600可以包括步骤610-640。
610,终端设备接收网络设备发送的配置信息,所述配置信息用于指示CHO候选小区。
620,终端设备从至少一个小区中,选择待接入的第一小区。
630,当所述终端设备能够以CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程。
640,当所述终端设备不能以所述CHO接入方式接入到所述第一小区时,所述终端设备利用所述第一小区进行RRC连接重建。
本申请实施例中,网络设备可以预先给终端设备配置CHO候选小区,并将配置的CHO候选小区可以以配置信息的方式指示给终端设备,终端设备在接收到网络设备发送的配置信息后,可以知道网络设备所配置的CHO候选小区,以便于后续进行小区选择。
应理解,本申请实施例的无线通信方法600中的步骤620-640可以和无线通信方法500中的步骤510-530相同。
上文提到当终端设备不能以CHO接入方式接入所选择的第一小区时,会利用第一小区进行RRC连接重建,以下将介绍终端设备利用第一小区进行RRC连接重建的过程。
可选地,在一些实施例中,在终端设备进行RRC连接重建的初始化过程中,终端设备将第一小区确定为目标小区,以进行RRC连接重建。
本申请实施例中,在终端设备进行RRC连接重建的初始化过程中,可以将终端设备在RRC连接重建之前所选择的第一小区作为RRC连接重建过程中的目标小区,再利用该目标小区进行RRC连接重建。
本申请实施例提供的无线通信方法,由于终端设备在进行RRC连接重建的时候,将在RRC连接重建前所选择的小区作为RRC连接重建初始化过程中的目标小区,因此能够避免由于执行额外小区的选择过程所导致的延时,可以加快RRC连接重建时间,从而可以减少数据中断时间。此外,终端设备选择RRC连接重建前所选择的小区作为RRC连接重建初始化过程中的目标小区,能够避免终端设备需要再一次判断所选择的小区是否为CHO候选小区,能够进一步简化终端设备的行为。
作为一个实施例,所述在所述RRC连接的初始化过程中,所述终端设备将所述第一小区确定为目标小区,包括:所述终端设备启动第一定时器;响应于所述第一定时器的启动,所述终端设备将所述第一小区确定为所述目标小区;响应于所述终端设备确定所述目标小区,停止所述第一定时器。
本申请实施例中,终端设备在RRC连接重建的初始化过程中,可以启动第一定时器,终端设备响应于第一定时器的启动,将第一小区确定为目标小区,以用于RRC连接重建,在终端设备确定目标小区后,可以响应于终端设备确定的目标小区,终端设备可以停止第一定时器。
本申请实施例中的第一定时器可以为定时器T311,也可以为能够触发终端设备进行小区选择的其它定时器,本申请对此不作具体限定。
本申请实施例中的响应于第一定时器的启动,将第一定时器确定为目标小区,可以理解为,在终端设备启动第一定时器的同时,终端设备可以将在RRC连接重建初始化过程前所选择的第一小区确定为用于RRC连接重建的目标小区,与现有技术中终端设备在RRC连接重建初始化过程中进行小区选择相比,能够减少RRC连接重建时间,同时由于终端设备将第一小区确定为目标小区,能够简化终端设备的行为。
应理解,本申请实施例中,在终端设备启动第一定时器后,由于终端设备在RRC连接重建的初始化过程中确定的目标小区为终端设备在RRC连接重建初始化过程前所选择 的小区,因此,终端设备几乎可以在接近于0秒的时间内确定目标小区,能够减少RRC连接重建时间,在终端设备确定目标小区后,随后停止第一定时器。
本申请实施例中,终端设备在启动第一定时器后,可以挂起除信令无线承载(Signaling Radio Bearer 0,SRB0)之外的所有无线承载(Radio Bearer,RB);重置媒体接入控制(Media Access Control,MAC);如果配置了主小区组的辅小区(Master Cell Group SCell,MCG SCell),可以释放已配置的MCG SCell(s);释放当前专用的服务小区(Serving Cell,SC)配置;如果配置了延迟预算报告配置(delay Budget Reporting Configuration),可以释放延迟预算报告配置,如果定时器T342正在运行,可以停止定时器T342;如果配置了过热辅助配置(overheating Assistance Configuration),可以释放过热辅助配置,如果定时器T345正在运行,可以停止定时器T345。
可以理解的是,上述过程中,若网络设备未向终端设备进行相关配置,且定时器T342和T345没有运行,则终端设备可以无需释放上述过程中所涉及的配置,也可以无需停止定时器T342和T345。此时,对于终端设备来说,在释放当前专用的SC配置,确定目标小区后,便可以停止第一定时器。
可选地,在一些实施例中,所述终端设备利用所述第一小区进行RRC连接重建,包括:响应于停止所述第一定时器,所述终端设备启动用于触发RRC重建请求消息的第二定时器。
本申请实施例中,在终端设备确定目标小区,停止第一定时器后,终端设备可以响应于停止第一定时器,启动第二定时器,该第二定时器能够触发RRC重建请求消息。
本申请实施例中的第二定时器可以为定时器T301,也可以为能够触发终端设备进行RRC重建请求消息的其它定时器,本申请对此不作具体限定。
类似地,本申请实施例中的响应于停止第一定时器,启动第二定时器,可以理解为,终端设备在停止第一定时器的同时,启动触发终端设备进行RRC连接重建请求消息的第二定时器。
本申请实施例中,在终端设备启动第二定时器后,终端设备可以向目标小区发送RRC连接重建请求消息,该消息中可以携带RRC连接重建的原因,对于不同的场景,RRC连接重建请求消息中携带的重建原因可能不同,例如,对于终端设备切换失败触发重建的原因可能为“handover failure”;对于无限链路失败触发的重建原因可能为“other failure”;对于重配置失败触发的重建原因可能为“reconfiguration failure”。目标小区在接收到终端设备发送的RRC连接重建请求消息后,可以向终端设备发送RRC连接重建消息,该RRC连接重建消息中携带新分配资源的信息。终端设备接收到目标小区发送的RRC连接重建消息后,根据消息指示可以重新分配无线资源,激活加密和完整性保护。终端设备向目标小区发送RRC连接重建完成消息。
图7是上述方法的具体实现方式的示意性流程图。如图7所示,可以包括步骤702-714。
702,终端设备发生无线链路失败或小区切换失败。
704,终端设备进行第一小区选择。
706,终端设备判断所选择的第一小区是否为CHO候选小区。
708,若终端设备选择的第一小区为CHO候选小区,则执行CHO切换。
710,终端设备向网络设备发送重配置完成消息。
712,若终端设备选择的第一小区不是CHO候选小区,则执行RRC连接重建。
714,终端设备在执行RRC连接重建的初始化过程中,选择第一小区作为RRC连接重建初始化过程中的目标小区,并完成RRC连接重建。
本申请实施例中,终端设备在RRC连接重建的初始化过程中,可以启动第一定时器,终端设备响应于第一定时器的启动,将第一小区确定为RRC连接重建初始化过程中的目标小区,以用于RRC连接重建,在终端设备确定目标小区后,可以响应于终端设备确定 的目标小区,终端设备可以停止第一定时器。
响应于停止第一定时器,终端设备可以启动用于触发RRC重建请求消息的第二定时器;终端设备可以向目标小区发送RRC连接重建请求消息;目标小区在接收到终端设备发送的RRC连接重建请求消息后,可以向终端设备发送RRC连接重建消息;终端设备接收到目标小区发送的RRC连接重建消息后,根据消息指示可以重新分配无线资源,激活加密和完整性保护;终端设备向目标小区发送RRC连接重建完成消息。
作为一个实施例,在所述RRC连接的初始化过程中,用于触发所述目标小区选择的第一定时器不被启动。
本申请实施例中,终端设备在RRC连接重建的初始化过程中,用于触发目标小区选择的第一定时器可以不被启动。在这种情况下,终端设备可以将RRC连接重建初始化过程前所选择的小区确定为目标小区,以用于RRC连接重建。
可以理解的是,由于第一定时器为触发终端设备进行小区选择的定时器,终端设备在RRC连接重建初始化过程中,当第一定时器不被启动时,终端设备可以无需进行小区的选择,可以将RRC连接重建初始化过程前所选择的小区确定为RRC连接重建初始化过程中的目标小区。
本申请实施例中,由于终端设备未启动用于触发目标小区选择的第一定时器,因此,终端设备可以将RRC连接重建初始化过程前所选择的小区确定为目标小区,相比于现有技术,能够减少RRC连接重建时间,从而可以减少数据中断时间。
可选地,在一些实施例中,所述终端设备利用所述第一小区进行RRC连接重建,包括:响应于所述终端设备配置的当前专用服务小区配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的延时预算报告配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T342定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的过热辅助配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T345定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器。
本申请实施例中,可以根据网络向终端设备进行的相关配置或相关定时器是否运行启动第二定时器,例如,可以响应于终端设备的当前专用服务小区配置释放完成,或响应于停止正在运行的T342定时器,或响应于终端设备的过热辅助配置释放完成,或响应于停止正在运行的T345定时器,启动第二定时器。
可选地,在一些实施例中,所述终端设备利用所述第一小区进行RRC连接重建,包括:
在网络设备未向所述终端设备配置延时预算报告配置和过热辅助配置,以及T342定时器和T345定时器未运行的情况下,响应于所述终端设备的当前专用服务小区配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或
在所述网络设备向所述终端设备已配置所述延时预算报告配置且未配置所述过热辅助配置,以及所述T342定时器和所述T345定时器未运行的情况下,响应于所述终端设备的延时预算报告配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或
在所述网络设备向所述终端设备未配置所述过热辅助配置,以及所述T342定时器运行和所述T345定时器未运行的情况下,响应于停止所述T342定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或
在所述网络设备向所述终端设备已配置所述过热辅助配置,以及所述T345定时器未运行的情况下,响应于所述终端设备的过热辅助配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或
在所述T345定时器运行的情况下,响应于停止所述T345定时器,所述终端设备启 动用于触发RRC连接重建请求消息的第二定时器。
本申请实施例中,由于终端设备未启动第一定时器,第二定时器可以在RRC连接重建过程中进行启动。具体地,若网络设备未向终端设备配置延迟预算报告配置和过热辅助配置,定时器T342和定时器T345也没有运行,则终端设备可以响应于释放当前专用的SC配置,启动第二定时器。
本申请实施例中,若网络设备向终端设备进行了部分相关配置时,可以根据网络设备向终端设备进行的配置启动第二定时器。例如,若网络设备向终端设备配置了延迟预算报告配置,没有配置过热辅助配置,定时器T342和定时器T345也未运行,则终端设备可以响应于释放延迟预算报告配置,启动第二定时器。
若网络设备向终端设备没有配置过热辅助配置,定时器T342在运行,定时器T345未运行,此时,可以响应于停止定时器T342,启动第二定时器。在这一过程中,网络设备可以预先向终端设备配置延迟预算报告配置,也可以未预先配置延迟预算报告配置,本申请对此不作具体限定。
若网络设备向终端设备配置了过热辅助配置,定时器T345也未运行,则终端设备可以响应于释放过热辅助配置。在这一过程中,网络设备可以预先向终端设备配置延迟预算报告配置,也可以未预先配置延迟预算报告配置,定时器T342可以运行,也可以不运行。
若定时器T345在运行,此时,可以响应于停止定时器T345,启动第二定时器。应理解,在这一过程中,定时器T342可以运行,也可以不运行,网络设备预先向终端设备配置延迟预算报告配置和/或过热辅助配置,也可以未预先配置延迟预算报告配置和/或过热辅助配置,本申请对此不作具体限定。
本申请实施例中,在终端设备启动第二定时器后,终端设备向目标小区发送RRC连接重建请求消息,该消息中可以携带RRC连接重建的原因,对于不同的场景,RRC连接重建请求消息中携带的重建原因可能不同,例如,对于终端设备切换失败触发重建的原因可能为“handover failure”;对于无限链路失败触发的重建原因可能为“other failure”;对于重配置失败触发的重建原因可能为“reconfiguration failure”。目标小区在接收到终端设备发送的RRC连接重建请求消息后,可以向终端设备发送RRC连接重建消息,该RRC连接重建消息中可以携带新分配资源的信息。终端设备接收到目标小区发送的RRC连接重建消息后,根据消息指示可以重新分配无线资源,激活加密和完整性保护。终端设备向目标小区发送RRC连接重建完成消息。
图8是上述方法的具体实现方式的示意性流程图。如图8所示,可以包括步骤802-814。
802,终端设备发生无线链路失败或小区切换失败。
804,终端设备进行第一小区选择。
806,终端设备判断所选择的第一小区是否为CHO候选小区。
808,若终端设备选择的第一小区为CHO候选小区,则执行CHO切换。
810,终端设备向网络设备发送重配置完成消息。
812,若终端设备选择的第一小区不是CHO候选小区,则执行RRC连接重建。
814,终端设备在执行RRC连接重建的初始化过程中,跳过小区选择将第一小区作为RRC连接重建初始化过程中的目标小区,并完成RRC连接重建。
本申请实施例中,终端设备在RRC连接重建的初始化过程中,用于触发目标小区选择的第一定时器可以不被启动。在这种情况下,终端设备可以跳过小区选择,将RRC连接重建初始化过程前所选择的小区确定为目标小区,以用于RRC连接重建。
在RRC连接重建的初始化过程中,终端设备可以根据网络设备预先向终端设备的配置相关定时器是否正在运行确定触发RRC连接重建请求消息的第二定时器的启动。具体地,若网络设备未向终端设备配置延迟预算报告配置和过热辅助配置,定时器T342和定 时器T345也没有运行,则终端设备可以响应于释放当前专用的SC配置,启动第二定时器。
本申请实施例中,若网络设备向终端设备进行了部分相关配置时,可以根据网络设备向终端设备进行的配置启动第二定时器。例如,若网络设备向终端设备配置了延迟预算报告配置,没有配置过热辅助配置,定时器T342和定时器T345也未运行,则终端设备可以响应于释放延迟预算报告配置,启动第二定时器。
若网络设备向终端设备没有配置过热辅助配置,定时器T342在运行,定时器T345未运行,此时,可以响应于停止定时器T342,启动第二定时器。在这一过程中,网络设备可以预先向终端设备配置延迟预算报告配置,也可以未预先配置延迟预算报告配置,本申请对此不作具体限定。
若网络设备向终端设备配置了过热辅助配置,定时器T345也未运行,则终端设备可以响应于释放过热辅助配置。在这一过程中,网络设备可以预先向终端设备配置延迟预算报告配置,也可以未预先配置延迟预算报告配置,定时器T342可以运行,也可以不运行。
若定时器T345在运行,此时,可以响应于停止定时器T345,启动第二定时器。应理解,在这一过程中,定时器T342可以运行,也可以不运行,网络设备预先向终端设备配置延迟预算报告配置和/或过热辅助配置,也可以未预先配置延迟预算报告配置和/或过热辅助配置,本申请对此不作具体限定。
本申请实施例提供的无线通信的方法,在终端设备进行RRC连接重建的初始化过程中,选择初始化过程前所选择的小区进行RRC连接重建,能够避免由于在RRC连接重建初始化过程中额外执行小区选择所带来的延时,可以加快RRC连接重建立时间,从而能够减少数据中断时间。此外,由于终端设备选择初始化过程前所选择的小区进行RRC连接重建,能够避免终端设备需要再一次判断所选择的小区是否为CHO候选小区,从而能够进一步简化终端设备的行为。
上文结合图1-图8,详细描述了本申请的方法实施例,下面结合图9-图13,描述本申请的装置实施例,装置实施例与方法实施例相互对应,因此未详细描述的部分可参见前面各部分方法实施例。
图9是本申请实施例的一种无线通信的装置900,该无线通信装置900可以包括选择模块910、执行模块920和重建模块930。
选择模块910,用于从至少一个小区中,选择待接入的第一小区。
执行模块920,当所述终端设备能够以CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程。
重建模块930,用于当终端设备不能以CHO接入方式接入到所述第一小区时,利用所述第一小区进行RRC连接重建。
可选地,在一些实施例中,如图10所示是本申请实施例的一种无线通信装置1000,该无线通信装置1000可以包括接收模块1010、选择模块1020、执行模块1030和重建模块1040。
接收模块1010,用于接收网络设备发送的配置信息,所述配置信息用于指示CHO候选小区。
选择模块1020,用于从至少一个小区中,选择待接入的第一小区。
执行模块1030,当所述终端设备能够以CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程。
重建模块1040,用于当终端设备不能以CHO接入方式接入到所述第一小区时,利用所述第一小区进行RRC连接重建。
其中,本申请实施例中的选择模块1020可以和无线通信装置900中的选择模块910相同,执行模块1030可以和无线通信装置900中的执行模块920相同,重建模块1040 可以和无线通信装置900中的重建模块930相同。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:在所述RRC连接重建的初始化过程中,终端设备将所述第一小区确定为目标小区,以进行RRC连接重建。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:启动第一定时器;响应于所述第一定时器的启动,将所述第一小区确定为所述目标小区;响应于确定所述目标小区,停止所述第一定时器。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:响应于停止所述第一定时器,启动用于触发RRC重建请求消息的第二定时器。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:在所述RRC连接的初始化过程中,用于触发所述目标小区选择的第一定时器不被启动。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:响应于所述终端设备的当前专用服务小区配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的延时预算报告配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T342定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的过热辅助配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T345定时器,启动用于触发RRC连接重建请求消息的第二定时器。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:在网络设备未向所述终端设备配置延时预算报告配置和过热辅助配置,以及T342定时器和T345定时器未运行的情况下,响应于所述终端设备的当前专用服务小区配置释放完成,启动用于触发RRC连接重建请求消息的第二定时器,或在所述网络设备向所述终端设备已配置所述延时预算报告配置且未配置所述过热辅助配置,以及所述T342定时器和所述T345定时器未运行的情况下,响应于所述终端设备的延时预算报告配置释放完成,启动用于触发RRC连接重建请求消息的第二定时器,或在所述网络设备向所述终端设备未配置所述过热辅助配置,以及所述T342定时器运行和所述T345定时器未运行的情况下,响应于停止所述T342定时器,启动用于触发RRC连接重建请求消息的第二定时器,或在所述网络设备向所述终端设备已配置所述过热辅助配置,以及所述T345定时器未运行的情况下,响应于所述终端设备的过热辅助配置释放完成,启动用于触发RRC连接重建请求消息的第二定时器,或在所述T345定时器运行的情况下,响应于停止所述T345定时器,启动用于触发RRC连接重建请求消息的第二定时器。
可选地,在一些实施例中,所述重建模块930或重建模块1040具体用于:向所述目标小区发送RRC重建请求消息;接收所述目标小区发送RRC重建消息;向所述目标小区发送RRC重建完成消息。
可选地,在一些实施例中,所述选择模块910具体用于在所述终端设备的无线链路失败时,或小区切换失败时,从所述至少一个小区中,选择所述待接入的第一小区。
本申请实施例还提供了一种终端设备1100,如图11所示,包括无线通信装置1110。
其中,无线通信装置1110可以为上述无线通信装置900或1000中的任何一种装置。
本申请实施例还提供了一种通信设备1200,如图12所示,包括处理器1210和存储器1220,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10中任一项所述的方法。
处理器1210可以从存储器1220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1220可以是独立于处理器1210的一个单独的器件,也可以集成在处理器1210中。
可选地,如图12所示,通信设备1200还可以包括收发器1230,处理器1210可以控制该收发器1230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1230可以包括发射机和接收机。收发器1230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1200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1200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13是本申请实施例的芯片的示意性结构图。图13所示的芯片1300包括处理器1310,处理器1310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13所示,芯片1300还可以包括存储器1320。其中,处理器1310可以从存储器1320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1320可以是独立于处理器1310的一个单独的器件,也可以集成在处理器1310中。
可选地,该芯片1300还可以包括输入接口1330。其中,处理器1310可以控制该输入接口1330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1300还可以包括输出接口1340。其中,处理器1310可以控制该输出接口1340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。
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 (12)
- 一种无线通信的方法,其特征在于,包括:终端设备从至少一个小区中,选择待接入的第一小区;当所述终端设备能够以条件切换CHO接入方式接入到所述第一小区时,所述终端设备尝试CHO执行过程;当所述终端设备不能以所述CHO接入方式接入到所述第一小区时,所述终端设备利用所述第一小区进行无线资源控制RRC连接重建。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:所述终端设备接收网络设备发送的配置信息,所述配置信息用于指示CHO候选小区。
- 根据权利要求1或2所述的方法,其特征在于,所述终端设备利用所述第一小区进行RRC连接重建,包括:在所述RRC连接重建的初始化过程中,所述终端设备将所述第一小区确定为目标小区,以进行RRC连接重建。
- 根据权利要求3所述的方法,其特征在于,所述在所述RRC连接重建的初始化过程中,所述终端设备将所述第一小区确定为目标小区,包括:所述终端设备启动第一定时器;响应于所述第一定时器的启动,所述终端设备将所述第一小区确定为所述目标小区;响应于所述终端设备确定所述目标小区,停止所述第一定时器。
- 根据权利要求4所述的方法,其特征在于,所述终端设备利用所述第一小区进行RRC连接重建,包括:响应于停止所述第一定时器,所述终端设备启动用于触发RRC重建请求消息的第二定时器。
- 根据权利要求3所述的方法,其特征在于,在所述RRC连接的初始化过程中,用于触发所述目标小区选择的第一定时器不被启动。
- 根据权利要求6所述的方法,其特征在于,所述终端设备利用所述第一小区进行RRC连接重建,包括:响应于所述终端设备的当前专用服务小区配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的延时预算报告配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T342定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于所述终端设备的过热辅助配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或响应于停止正在运行的T345定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器。
- 根据权利要求6或7所述的方法,其特征在于,所述终端设备利用所述第一小区进行RRC连接重建,包括:在网络设备未向所述终端设备配置延时预算报告配置和过热辅助配置,以及T342定时器和T345定时器未运行的情况下,响应于所述终端设备的当前专用服务小区配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或在所述网络设备向所述终端设备已配置所述延时预算报告配置且未配置所述过热辅助配置,以及所述T342定时器和所述T345定时器未运行的情况下,响应于所述终端设备的延时预算报告配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的 第二定时器,或在所述网络设备向所述终端设备未配置所述过热辅助配置,以及所述T342定时器运行和所述T345定时器未运行的情况下,响应于停止所述T342定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或在所述网络设备向所述终端设备已配置所述过热辅助配置,以及所述T345定时器未运行的情况下,响应于所述终端设备的过热辅助配置释放完成,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器,或在所述T345定时器运行的情况下,响应于停止所述T345定时器,所述终端设备启动用于触发RRC连接重建请求消息的第二定时器。
- 根据权利要求1至8中任一项所述的方法,其特征在于,所述终端设备利用所述第一小区进行RRC连接重建,包括:所述终端设备向所述目标小区发送RRC重建请求消息;所述终端设备接收所述目标小区发送RRC重建消息;所述终端设备向所述目标小区发送RRC重建完成消息。
- 根据权利要求1至9中任一项所述的方法,其特征在于,所述终端设备从至少一个小区中,选择待接入的第一小区,包括:在所述终端设备的无线链路失败时,或小区切换失败时,所述终端设备从所述至少一个小区中,选择所述待接入的第一小区。
- 一种通信设备,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10中任一项所述的方法。
- 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10中任一项所述的方法。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018156696A1 (en) * | 2017-02-27 | 2018-08-30 | Intel IP Corporation | Exit conditions for conditional handovers and beam based mobility state estimation |
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WO2018171739A1 (zh) * | 2017-03-24 | 2018-09-27 | 华为技术有限公司 | 通信方法、网络设备和终端 |
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US10757621B2 (en) * | 2017-03-22 | 2020-08-25 | Ofinno, Llc | Conditional handover execution |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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WO2018170777A1 (en) * | 2017-03-22 | 2018-09-27 | Motorola Mobility Llc | A condition for handover |
WO2018171739A1 (zh) * | 2017-03-24 | 2018-09-27 | 华为技术有限公司 | 通信方法、网络设备和终端 |
Non-Patent Citations (2)
Title |
---|
ERICSSON.: "Conditional handover failures in LTE.", 3GPP TSG RAN WG2 #106, R2-1906199., 2 May 2019 (2019-05-02), XP051710523, DOI: 20191231153513Y * |
ERICSSON.: "Conditional handover failures in NR.", 3GPP TSG RAN WG2 #106, R2-1906215., 2 May 2019 (2019-05-02), XP051710537, DOI: 20191231153449Y * |
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