WO2020172776A1 - Procédé de transfert de données, dispositif et support d'enregistrement - Google Patents

Procédé de transfert de données, dispositif et support d'enregistrement Download PDF

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Publication number
WO2020172776A1
WO2020172776A1 PCT/CN2019/076087 CN2019076087W WO2020172776A1 WO 2020172776 A1 WO2020172776 A1 WO 2020172776A1 CN 2019076087 W CN2019076087 W CN 2019076087W WO 2020172776 A1 WO2020172776 A1 WO 2020172776A1
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Prior art keywords
network device
threshold value
terminal device
source network
event
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PCT/CN2019/076087
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English (en)
Chinese (zh)
Inventor
尤心
卢前溪
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Oppo广东移动通信有限公司
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Priority to PCT/CN2019/076087 priority Critical patent/WO2020172776A1/fr
Priority to CN201980064559.1A priority patent/CN112789890A/zh
Publication of WO2020172776A1 publication Critical patent/WO2020172776A1/fr

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

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular to a data forwarding method, equipment and storage medium.
  • conditional cell handover the source network device can configure a terminal device with a handover command for conditional handover for at least two target network devices, and the source network device can send one or at least two A target network device initiates a handover request.
  • the source network device cannot predict which target network device the terminal device will initiate cell handover to when the handover trigger condition is met, so that the source network device cannot forward data to the target network device after the cell handover with the terminal device.
  • embodiments of the present invention provide a data forwarding method, device, and storage medium, which can implement data forwarding between a source network device and a target network device when a terminal device performs condition-based cell handover.
  • an embodiment of the present invention provides a data forwarding method, including: a terminal device receives first information, where the first information is used to instruct the terminal device to send first information to a source network device when a first condition is met. Indication information, the first indication information is used to instruct the source network device to forward data to the target network device; the first condition is related to the conditional handover of the source cell and/or the parameters of the target cell, and the target cell is The target network device corresponds to, and the source cell corresponds to the source network device.
  • an embodiment of the present invention provides a data forwarding method, including: a source network device sends first information to a terminal device, where the first information is used to indicate that the terminal device satisfies a first condition, The source network device sends first indication information, where the first indication information is used to instruct the source network device to forward data to the target network device; the first condition is related to conditional handover parameters of the source cell and/or target cell, The target cell corresponds to the target network device, and the source cell corresponds to the source network device.
  • an embodiment of the present invention provides a terminal device, including: a first receiving unit configured to receive first information, where the first information is used to instruct the terminal device to report to the source network when the first condition is satisfied.
  • the device sends first indication information, where the first indication information is used to instruct the source network device to forward data to the target network device; the first condition is related to the conditional handover of the source cell and/or target cell parameters, the The target cell corresponds to the target network device, and the source cell corresponds to the source network device.
  • an embodiment of the present invention provides a source network device, including: a third sending unit configured to send first information to a terminal device, where the first information is used to indicate that the terminal device meets a first condition Send first indication information to the source network device, where the first indication information is used to instruct the source network device to forward data to the target network device; the first condition and conditional handover of the source cell and/or target cell
  • the target cell corresponds to the target network device
  • the source cell corresponds to the source network device.
  • an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal when the computer program is running. The steps of the data forwarding method performed by the device.
  • an embodiment of the present invention provides a storage medium storing an executable program, and when the executable program is executed by a processor, it implements the data forwarding method executed by the source network device.
  • the data forwarding method provided by the embodiment of the present invention includes: a terminal device receives first information, where the first information is used to instruct the terminal device to send first indication information to a source network device when a first condition is satisfied, and The first indication information is used to instruct the source network device to forward data to the target network device; the first condition is related to the conditional handover parameters of the source cell and/or target cell, and the target cell is related to the target network device.
  • the source cell corresponds to the source network device.
  • the source network device can determine the target network device that forwards the data; when the terminal device performs conditional handover, the source network device can shrink The range of the target network device to which the source network device performs data forwarding saves signaling overhead, avoids the large data terminal delay in conditional handover, and improves user experience.
  • Figure 1 is a schematic diagram of the cell handover process of the present invention
  • Figure 2 is a schematic diagram of the conditional handover process of the present invention.
  • FIG. 3 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an optional processing flow of a data forwarding method applied to a terminal device according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of an optional processing flow of a data forwarding method applied to a source network device according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of the composition structure of a terminal device according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the composition structure of a source network device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the hardware composition structure of an electronic device according to an embodiment of the present invention.
  • 5G Enhance Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communications
  • mMTC Massive Machine Type Communication
  • 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 must be analyzed in detail in conjunction with specific deployment scenarios.
  • Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
  • Typical features of mMTC include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
  • the New Rational (NR) system supports the handover process of connected terminal devices.
  • a terminal device that is using network services moves from one cell to another, or due to wireless transmission service load adjustment, activation operation and maintenance, equipment failure, etc., in order to ensure communication continuity and service quality, the system must The communication link between the terminal equipment and the original cell is transferred to the new cell, that is, the handover process is performed.
  • the cell handover process as shown in Figure 1, is divided into the following three stages:
  • Phase 1 including steps 1 to 5
  • handover preparation including measurement control and reporting, handover request and confirmation
  • Phase 2 (including steps 6 to 8), handover execution: the terminal device immediately executes the handover process after receiving the handover command, that is, the terminal device disconnects the source cell and connects to the target cell (such as performing random access, sends an RRC handover complete message to Target network equipment, etc.); secondary node (Secondary Node, SN) state transfer, data forwarding.
  • the terminal device immediately executes the handover process after receiving the handover command, that is, the terminal device disconnects the source cell and connects to the target cell (such as performing random access, sends an RRC handover complete message to Target network equipment, etc.); secondary node (Secondary Node, SN) state transfer, data forwarding.
  • SN Secondary Node
  • Phase 3 (including steps 9 to 12), the handover is completed: the target cell and the (Acess and Mobility Management Function, AMF) and the user plane function (User Plane Function, UPF) execute the path switch (Path Switch), and release the terminal of the source network device Device context.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • the source network device can initiate handover preparation or request messages for multiple target cells simultaneously or sequentially according to the measurement report of the terminal device (including measurement results of multiple cells); specifically, the source network device can be based on direct connection Or through the S1/N2 interface between the mobility management entity (Mobility Management Entity, MME)/AMF to initiate a handover preparation or request message.
  • MME Mobility Management Entity
  • each target cell After receiving the handover preparation/request message, each target cell performs access control according to its own RRM algorithm, and sends a handover request response message to the network device where the source cell is located under the premise of passing the access control (if the access control fails) Then respond to the handover request failure message), which carries the handover command generated by the target cell.
  • the source network device selects one of the multiple target cells that return a handover response according to its own RRM algorithm as the final handover target cell, and sends the handover command corresponding to the target cell to the terminal device through the RRC reconfiguration message to realize the network
  • the device has complete control over the switching process.
  • the handover process triggered by the measurement report of the terminal equipment is mainly the management of the mobile connection of the terminal equipment by the network equipment, so that the terminal equipment maintains the continuity of the current transmission service when it moves to the cell boundary and enters a new cell.
  • LTE and NR systems also support a blind handover process.
  • One of the trigger conditions for blind handover is based on the load balancing considerations on the network side. For example, when the current serving cell is congested, the serving cell can switch one or more connected terminal devices to other cells with lower load, even if these terminals The device has not really moved to the cell boundary.
  • the existing X2 and Xn interfaces already support the exchange of load information of respective cells between different base stations, so that the serving cell can obtain the load status of other neighboring cells and decide whether to perform blind handover to some terminal devices according to their respective load comparisons.
  • conditional handover conditional handover
  • the terminal device executes the handover to the target cell according to the pre-configured handover command (that is, triggers the random access process) when it is triggered by the conditions related to the target cell. And send a handover complete message) to avoid the problem of too late or unable to send measurement reports and receive handover commands due to high-speed movement into the poor coverage area.
  • the source network device cannot predict which target network device the terminal device will initiate a cell handover to when the handover trigger condition is met; at this time, if the source network device forwards data to multiple target network devices, additional networks will be created Overhead; if the source network device waits for the terminal device to access the target cell, and then forwards the data to the target network device after receiving an instruction sent by the target network device, it will be due to the random access channel (Random Access Channel, RACH) in the conditional handover. ) The process causes a large data interruption delay, which affects the user experience.
  • RACH Random Access Channel
  • the present invention provides a data forwarding method.
  • the data forwarding method in the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (GSM) system Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access, WiMAX) communication system or 5G system, etc.
  • GSM Global System of Mobile Communication
  • GSM Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • 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, Wi
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 3.
  • 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 3 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 having a communication function and a terminal device 120.
  • 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.
  • An optional processing flow of the data forwarding method applied to terminal equipment provided by the embodiment of the present invention, as shown in FIG. 4, includes the following steps:
  • Step S201 The terminal device receives first information, where the first information is used to instruct the terminal device to send first instruction information to the source network device when the first condition is met.
  • the first condition is a condition for the source network device to forward data to the target network device when a conditional handover is configured for the terminal device when the network device configures a conditional handover command for the terminal device;
  • the condition is related to the parameters of the source cell and/or the target cell of the conditional handover based on the conditional handover, the target cell corresponds to the target network device, and the source cell corresponds to the source network device.
  • the network device is a source network device currently serving the terminal device, or the network device is a network device previously serving the terminal device.
  • the parameters of the source cell and/or the target cell of the conditional handover based on the conditional handover related to the first condition are: signal quality of the source cell and/or the target cell.
  • the first condition is: the signal quality of the target cell is greater than the first threshold.
  • the first threshold value is the threshold value of the A4 event; or, the first threshold value is the sum of the threshold value of the A4 event configured by the source network device and a first relative value
  • the The A4 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the first relative value is a negative value. For example, if the threshold value of the A4 event configured by the source network device is 3 and the first relative value is -2, then the first threshold value is 1.
  • the terminal device sends the first indication information to the source network device.
  • the first condition is that the difference between the signal quality of the target cell and the signal quality of the source cell is greater than a second threshold.
  • the second threshold value is the threshold value of the A3 event; or the second threshold value is the sum of the threshold value of the A3 event configured by the source network device and a second relative value, and the source The A3 event configured by the network device is an event that triggers the terminal device to perform conditional handover.
  • the second relative value is a negative value.
  • the first condition is: the signal quality of the source cell is less than the third threshold value, and the signal quality of the target cell is greater than the fourth threshold value.
  • the third threshold value and the fourth threshold value are threshold values of the A5 event; or the third threshold value and the fourth threshold value are the threshold values of the A5 event configured by the source network device.
  • the sum of the value and the third relative value, the A5 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the third relative value is a negative value.
  • the third relative value of the two thresholds corresponding to the A5 event configured by the source network device is the same, the thresholds of the A5 event configured by the source network device are 3 and 5 respectively, and the third relative value is ⁇ 2, then the third threshold is 1, and the fourth threshold is 3.
  • the third relative value of the two thresholds corresponding to the A5 event configured by the source network device may also be different.
  • the thresholds of the A5 event configured by the source network device are 3 and 5 respectively, corresponding to the source
  • the third relative values of the two thresholds of the A5 event configured by the network device are -2 and -3, respectively, so the third threshold is 1, and the fourth threshold is 2.
  • the first condition is: the signal quality of the source cell is less than the fifth threshold.
  • the fifth threshold value is the threshold value of the A2 event; or, the fifth threshold value is the sum of the threshold value of the A2 event configured by the source network device and the fourth relative value, the The A2 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the fourth relative value is a negative value.
  • the terminal device sends the first indication information to the source network device ;
  • the terminal device can report the measurement results of the terminal device on at least one target network device at the same time, such as channel quality; make the source network device select one or several target network devices with the best signal quality for data forwarding according to the measurement results reported by the terminal device .
  • the source network device thinks that the terminal device is about to switch to the target network device with good signal quality.
  • the first relative value, the second relative value, the third relative value, and the fourth relative value may all be configured by the source network device to the terminal device through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the first condition further includes: the signal quality of the source cell is greater than a sixth threshold. This enables the terminal device to report the first indication information to the source network device when the signal quality of the source cell is good, that is, the source network device can receive the first indication information sent by the terminal device.
  • the signal quality includes at least one of the following: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Signal to Noise Ratio (RSRP) Signal to Noise Ratio, SNR).
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • RSRP Signal to Noise Ratio
  • SNR Signal to Noise Ratio
  • the first condition is explained above.
  • the terminal device sends first indication information to the source network device, where the first indication information is used to instruct the source network device to forward data to the target network device.
  • the source network device determines that the terminal device is about to initiate handover to the target cell; the source network device forwards data to the target network device according to the content in the first instruction information; when the handover trigger condition is met, the terminal device Initiate a handover to the target cell.
  • the terminal device sends the first indication information to the source network device, so that the source network device can forward data to the target network device in time, avoiding the large data terminal delay in conditional handover and improving user experience .
  • the first indication information is sent by the terminal device to the source network device through RRC signaling, or Media Access Control (MAC) signaling or physical layer signaling.
  • the first indication information includes: serial number information of the target cell, and/or frequency and physical cell identifier (Physical Cell Identifier, PCI) of the target cell.
  • the source network device can determine which target cell the terminal device switches to and the corresponding target network device according to the number information of the target cell, and/or the frequency and PCI of the target cell; the source network device forwards data to the determined target network device. In this way, by sending the first indication information to the source network device by the terminal device, the scope of data forwarding by the source network device to the target network device can be reduced, and signaling overhead can be saved.
  • the first indication information in addition to the number information of the target cell, and/or the frequency and PCI of the target cell, the first indication information also includes: the signal quality of the target cell, and/or the source The signal quality of the cell.
  • the first indication information is a by message.
  • the method further includes:
  • Step S202 The terminal device sends first instruction information to the source network device.
  • the optional processing flow of the data forwarding method applied to source network equipment provided by the embodiment of the present invention, as shown in FIG. 5, includes:
  • Step S301 The source network device sends first information to the terminal device, where the first information is used to instruct the terminal device to send first indication information to the source network device when the first condition is met.
  • the first indication information is used to instruct the source network device to forward data to the target network device;
  • the first condition is related to parameters of the source cell and/or target cell of the conditional handover, and the target The cell corresponds to the target network device, and the source cell corresponds to the source network device.
  • the related description based on the first condition and based on the first indication information is the same as the related description based on the first condition and based on the first indication information in step S201, and will not be repeated here.
  • the method further includes:
  • Step S302 The source network device receives the first indication information sent by the terminal device.
  • the source network device when the first indication information also carries the signal quality of at least one target network device, the source network device sends the signal to one or more target network devices with the best signal quality among the at least one target network device. Forward the data. Alternatively, the source network device forwards the data to a target network device with the best signal quality among the at least one target network device and the target network device indicated in the first indication information.
  • Step S303 The source network device forwards data to the target network device based on the first indication information.
  • the embodiment of the present invention provides a terminal device.
  • the composition structure of the terminal device 400, as shown in FIG. 6, includes:
  • the first receiving unit 401 is configured to receive first information, where the first information is used to instruct the terminal device to send first indication information to the source network device when the first condition is met, and the first indication information is used for Instruct the source network device to forward data to the target network device;
  • the first condition is related to parameters of a source cell and/or a target cell of the conditional handover, the target cell corresponds to the target network device, and the source cell corresponds to the source network device.
  • the first condition includes: the signal quality of the target cell is greater than a first threshold.
  • the first threshold value is the threshold value of the A4 event; or, the first threshold value is the sum of the threshold value of the A4 event configured by the source network device and a first relative value, the The A4 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the first condition includes: the difference between the signal quality of the target cell and the signal quality of the source cell is greater than a second threshold.
  • the second threshold value is the threshold value of the A3 event; or, the second threshold value is the sum of the threshold value of the A3 event configured by the source network device and a second relative value.
  • the A3 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the first condition includes: the signal quality of the source cell is less than a third threshold value, and the signal quality of the target cell is greater than a fourth threshold value.
  • the third threshold value and the fourth threshold value are threshold values of the A5 event; or, the third threshold value and the fourth threshold value are the threshold values of the A5 event configured by the source network device.
  • the sum of the limit value and the third relative value, the A5 event configured by the source network device is an event that triggers the terminal device to perform a conditional handover.
  • the first condition includes: the signal quality of the source cell is less than a fifth threshold.
  • the fifth threshold value is the threshold value of the A2 event; or the fifth threshold value is the sum of the threshold value of the A2 event configured by the source network device and the fourth relative value, and the source The A2 event configured by the network device is an event that triggers the terminal device to perform conditional handover.
  • the first relative value, the second relative value, the third relative value, and the fourth relative value may be configured by the source network device to the terminal device through RRC signaling.
  • the first condition further includes: the signal quality of the source cell is greater than a sixth threshold.
  • the signal quality includes at least one of the following: RSRP, RSRQ, and SNR.
  • the terminal device 400 further includes: a first sending unit 402, which is further configured to send the first indication information to the source network device.
  • the terminal device 400 further includes: a second sending unit 403, configured to send at least one target network device to the source network device when the signal quality of the source cell is less than a sixth threshold The signal quality of the at least one target network device; the signal quality of the at least one target network device is used by the source network device to determine the target network device to forward data from the at least one target network device.
  • a second sending unit 403 configured to send at least one target network device to the source network device when the signal quality of the source cell is less than a sixth threshold The signal quality of the at least one target network device; the signal quality of the at least one target network device is used by the source network device to determine the target network device to forward data from the at least one target network device.
  • the first indication information includes serial number information of the target cell, and/or frequency and PCI of the target cell.
  • the first indication information also includes: the signal quality of the target cell and/or the signal quality of the source cell Signal quality.
  • the first indication information is carried in any of the following signaling: RRC signaling, MAC signaling, and physical layer signaling.
  • the embodiment of the present invention also provides a source network device.
  • the composition structure of the source network device 500 as shown in FIG. 7, includes:
  • the third sending unit 501 is configured to send first information to a terminal device, where the first information is used to instruct the terminal device to send first instruction information to the source network device when the first condition is satisfied, and the first An indication information is used to instruct the source network device to forward data to the target network device; the first condition is related to the conditional handover parameters of the source cell and/or target cell, and the target cell corresponds to the target network device , The source cell corresponds to the source network device.
  • the first condition includes: the signal quality of the target cell is greater than a first threshold.
  • the first threshold value is the threshold value of the A4 event; or, the first threshold value is the sum of the threshold value of the A4 event configured by the source network device and a first relative value, the The A4 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the first condition includes: the difference between the signal quality of the target cell and the signal quality of the source cell is greater than a second threshold.
  • the second threshold value is the threshold value of the A3 event; or, the second threshold value is the sum of the threshold value of the A3 event configured by the source network device and a second relative value.
  • the A3 event configured by the source network device is an event that triggers the terminal device to perform conditional handover.
  • the first condition includes: the signal quality of the source cell is less than a third threshold value, and the signal quality of the target cell is greater than a fourth threshold value.
  • the third threshold value and the fourth threshold value are threshold values of the A5 event; or, the third threshold value and the fourth threshold value are the threshold values of the A5 event configured by the source network device.
  • the sum of the limit value and the third relative value, the A5 event configured by the source network device is an event that triggers the terminal device to perform a conditional handover.
  • the first condition includes: the signal quality of the source cell is less than a fifth threshold.
  • the fifth threshold value is the threshold value of the A2 event; or the fifth threshold value is the sum of the threshold value of the A2 event configured by the source network device and the fourth relative value, and the source The A2 event configured by the network device is an event that triggers the terminal device to perform conditional handover.
  • the first relative value, the second relative value, the third relative value, and the fourth relative value may be configured by the source network device to the terminal device through RRC signaling.
  • the first condition further includes: the signal quality of the source cell is greater than a sixth threshold.
  • the signal quality includes at least one of the following: RSRP, RSRQ, and SNR.
  • the source network device further includes a second receiving unit 502, which is further configured to receive the first indication information sent by the terminal device.
  • the source network device further includes a third receiving unit 503 configured to receive at least one target network device's information sent by the terminal device when the signal quality of the source cell is less than a sixth threshold. Signal quality.
  • the third sending unit 501 is further configured to forward data to the target network device with the best signal quality among the at least one target network device.
  • the first indication information includes serial number information of the target cell, and/or frequency and PCI of the target cell.
  • the first indication information also includes: the signal quality of the target cell and/or the signal quality of the source cell Signal quality.
  • the first indication information is carried in any of the following signaling: RRC signaling, MAC signaling, and physical layer signaling.
  • An embodiment of the present invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned terminal device when the computer program is running. The steps of the data forwarding method.
  • An embodiment of the present invention also provides a source network device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the source network device when running the computer program Perform the steps of the data forwarding method.
  • FIG. 8 is a schematic diagram of the hardware composition structure of an electronic device (terminal device and source network device) according to an embodiment of the present invention.
  • the terminal device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704.
  • the various components in the terminal device 700 are coupled together through the bus system 705.
  • the bus system 705 is used to implement connection and communication between these components.
  • the bus system 705 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 705 in FIG. 8.
  • the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM (CD) -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM Static Random Access Memory
  • SSRAM synchronous static random access memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhanced -Type synchronous dynamic random access memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • direct memory bus random access memory DRRAM, Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal device 700. Examples of these data include: any computer program used to operate on the terminal device 700, such as the application program 7022.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 7022.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701 or implemented by the processor 701.
  • the processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 701 or instructions in the form of software.
  • the aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the processor 701 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 702.
  • the processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.
  • the terminal device 700 may be configured by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable logic device
  • controller MCU
  • MPU MPU
  • the embodiment of the present application also provides a storage medium for storing computer programs.
  • the storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de transfert de données, comprenant les étapes suivantes : un dispositif terminal reçoit des premières informations, les premières informations étant utilisées pour indiquer que le dispositif terminal envoie des premières informations d'indication à un dispositif de réseau source lorsqu'une première condition est satisfaite, et les premières informations d'indication étant utilisées pour indiquer que le dispositif de réseau source transfère des données à un dispositif de réseau cible ; et la première condition est associée à des paramètres d'une cellule source et/ou d'une cellule cible d'un transfert intercellulaire déclenché sur la base de la condition, la cellule cible correspond au dispositif de réseau cible, et la cellule source correspond au dispositif de réseau source. L'invention concerne également un autre procédé de transfert de données, un dispositif et un support d'enregistrement.
PCT/CN2019/076087 2019-02-25 2019-02-25 Procédé de transfert de données, dispositif et support d'enregistrement WO2020172776A1 (fr)

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PCT/CN2019/076087 WO2020172776A1 (fr) 2019-02-25 2019-02-25 Procédé de transfert de données, dispositif et support d'enregistrement
CN201980064559.1A CN112789890A (zh) 2019-02-25 2019-02-25 一种数据转发方法、设备及存储介质

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104469873A (zh) * 2013-09-25 2015-03-25 中兴通讯股份有限公司 小区切换方法及装置
CN106304125A (zh) * 2016-08-21 2017-01-04 南京理工大学 一种高铁环境下的复合切换方法
CN107872852A (zh) * 2016-09-28 2018-04-03 北京信威通信技术股份有限公司 一种切换过程中控制基站发送下行数据的方法
CN108243463A (zh) * 2016-12-27 2018-07-03 中国移动通信集团浙江有限公司 一种lte高铁的小区切换方法
WO2018203300A1 (fr) * 2017-05-05 2018-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Porteuse radio à signalisation divisée dans un transfert intercellulaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106341803A (zh) * 2016-09-05 2017-01-18 深圳市万普拉斯科技有限公司 提高lte终端设备呼通率的方法及终端设备
CN108882293B (zh) * 2018-06-11 2020-10-13 Oppo广东移动通信有限公司 一种小区切换方法、终端及计算机可读存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104469873A (zh) * 2013-09-25 2015-03-25 中兴通讯股份有限公司 小区切换方法及装置
CN106304125A (zh) * 2016-08-21 2017-01-04 南京理工大学 一种高铁环境下的复合切换方法
CN107872852A (zh) * 2016-09-28 2018-04-03 北京信威通信技术股份有限公司 一种切换过程中控制基站发送下行数据的方法
CN108243463A (zh) * 2016-12-27 2018-07-03 中国移动通信集团浙江有限公司 一种lte高铁的小区切换方法
WO2018203300A1 (fr) * 2017-05-05 2018-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Porteuse radio à signalisation divisée dans un transfert intercellulaire

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