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WO2022006911A1 - Procédé et appareil de transmission de données, dispositif terminal et support d'enregistrement - Google Patents

Procédé et appareil de transmission de données, dispositif terminal et support d'enregistrement Download PDF

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Publication number
WO2022006911A1
WO2022006911A1 PCT/CN2020/101486 CN2020101486W WO2022006911A1 WO 2022006911 A1 WO2022006911 A1 WO 2022006911A1 CN 2020101486 W CN2020101486 W CN 2020101486W WO 2022006911 A1 WO2022006911 A1 WO 2022006911A1
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WIPO (PCT)
Prior art keywords
data
type
idt
threshold
connection establishment
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PCT/CN2020/101486
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English (en)
Chinese (zh)
Inventor
林雪
石聪
李海涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202080101129.5A priority Critical patent/CN115669192B/zh
Priority to PCT/CN2020/101486 priority patent/WO2022006911A1/fr
Publication of WO2022006911A1 publication Critical patent/WO2022006911A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of wireless communication, and in particular, to a data transmission method, apparatus, terminal device and storage medium.
  • the RRC_INACTIVE state (that is, the RRC inactive state) is a new state introduced by a New Radio (New Radio, NR) system from the perspective of energy saving.
  • New Radio New Radio
  • Radio Resource Control For a terminal device in the RRC_INACTIVE state, the radio bearer and all radio resources will be released, but the terminal device side and the network device side retain the UE access context to quickly restore the Radio Resource Control (RRC) connection.
  • RRC Radio Resource Control
  • the terminal device in the RRC_INACTIVE state, if the terminal device wants to perform data transmission, it needs to trigger the connection establishment and recovery process to restore the RRC connection, and enter the connected state for data transmission, which consumes a lot of power.
  • the embodiments of the present application provide a data transmission method, apparatus, terminal device, and storage medium.
  • the terminal device can reasonably trigger the IDT process according to the type of service data, so that data transmission can be performed without restoring the RRC connection, reducing power consumption. consumption.
  • the technical solution is as follows.
  • a data transmission method which is applied to a terminal device, and the method includes:
  • the service data includes: at least one of a first type of data and a second type of data, the first type of data includes data from a logical channel that supports triggering the IDT process, and the second type of data includes Data from logical channels that do not support triggering the IDT procedure.
  • a data transmission device comprising: a trigger module and a transmission module;
  • the triggering module is used for triggering one of the inactive data transmission IDT process and the connection establishment recovery process according to the type and/or data volume of the service data;
  • the transmission module configured to transmit the service data by using the IDT process; or, after restoring the RRC connection according to the connection establishment and restoration process, transmit the service data;
  • the service data includes: at least one of a first type of data and a second type of data, the first type of data includes data from a logical channel that supports triggering the IDT process, and the second type of data includes Data from logical channels that do not support triggering the IDT procedure.
  • a terminal device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the data transmission method as described in the above aspects.
  • a computer-readable storage medium having executable instructions stored in the readable storage medium, the executable instructions being loaded and executed by a processor to realize the data as described in the above-mentioned aspects transfer method.
  • a computer program product or computer program comprising computer instructions stored in a computer-readable storage medium, the processor of the computer device being readable from the computer
  • the storage medium reads the computer instructions, and the processor executes the computer instructions, so that the computer device executes the data transmission method described in the above aspects.
  • one of the triggering IDT process and the connection establishment recovery process can be selected according to the type and/or data volume of the service data to realize data transmission.
  • Type and/or size of data reasonably trigger the IDT process, so that data transmission can be performed without restoring the RRC connection, reducing power consumption.
  • FIG. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • FIG. 2 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 3 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 4 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 5 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 6 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 8 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 9 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • FIG. 10 is a structural block diagram of a data transmission apparatus provided by an exemplary embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • RRC_INACTIVE state In the 5G network environment, in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services, a new RRC state is defined, that is, RRC_INACTIVE state.
  • RRC_IDLE state (that is, RRC idle state): Mobility is cell selection and reselection based on terminal equipment, paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no UE access context on the network device side. There is no RRC connection.
  • CN Core Network
  • RRC_CONNECTED state (ie, RRC connected state): there is an RRC connection, and the network device and the terminal device have a UE access context.
  • the network device side knows that the location of the terminal device is at the specific cell level. Mobility is the mobility controlled on the network device side. Unicast data can be transmitted between terminal equipment and network equipment.
  • RRC_INACTIVE state mobility is based on terminal equipment cell selection and reselection, there is a connection between CN-NR, UE access context exists on a certain network equipment, and paging is performed by the radio access network ( Radio Access Network, RAN) triggers, the RAN-based paging area is managed by the RAN, and the network device side knows the location of the terminal device is based on the RAN-based paging area level.
  • Radio Access Network Radio Access Network
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: an access network 12 and a terminal device 14 .
  • the access network 12 includes several network devices 120 .
  • the network device 120 may be a base station, which is a device deployed in an access network to provide a wireless communication function for a terminal.
  • the base station may include various forms of macro base station, micro base station, relay station, access point and so on.
  • the names of devices with base station functions may be different.
  • eNodeBs or eNBs In LTE systems, they are called eNodeBs or eNBs; in 5G NR-U systems, they are called gNodeBs or gNBs.
  • the description of "base station” may change.
  • the above-mentioned apparatuses for providing a wireless communication function for the terminal device 14 are collectively referred to as network devices.
  • the terminal device 14 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS) , terminal device, etc.
  • the network device 120 and the terminal device 14 communicate with each other through a certain air interface technology, such as a Uu interface.
  • the terminal device is in the RRC_INACTIVE state.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • CDMA wideband 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
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • evolution systems of NR systems LTE on unlicensed frequency bands (LTE-based access to Unlicensed spectrum, LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • FIG. 2 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • the method can be applied to the terminal equipment and network equipment shown in FIG. 1 , and the method includes:
  • step 210 the terminal device triggers one of an IDT process and a connection establishment and restoration process according to the type and/or data volume of the service data.
  • the terminal device is in the RRC_INACTIVE state.
  • the terminal device needs to transmit the service data, according to the type of service data, or, according to the data volume of the service data, or, according to the type and size of the service data, select to trigger inactive data transmission (Inactive Data Transmission, IDT). ) process and connection establishment and restoration process, in which part or all of the business data is transmitted through the triggered IDT process or the connection establishment and restoration process.
  • IDT Inactive Data Transmission
  • the terminal device enters the RRC connection state through the connection establishment and recovery process, and transmits all the service data; in another possible implementation manner, the terminal device transmits all the service data by triggering the IDT process. ; In another possible implementation manner, by triggering the IDT process, part of the service data is transmitted through one transmission, and subsequently the connection establishment and recovery process needs to be triggered, and the remaining service data is continued to be transmitted in the RRC connection state.
  • the IDT process is a process in which the terminal device performs data transmission in an inactive state (ie, an RRC_INACTIVE state).
  • the IDT procedure does not require the establishment of an RRC connection between the terminal device and the network device.
  • This embodiment of the present application does not limit the specific process of the IDT process.
  • the connection establishment and restoration procedure is the procedure for the terminal equipment to restore the RRC connection with the network equipment.
  • the connection establishment and recovery process can only be used to restore the RRC connection with the network device and then perform data transmission, it needs to return to the RRC_INACTIVE state after the data transmission is completed.
  • the power consumption is relatively large. Through the IDT process, the transition of the connection state is avoided, and the power consumption can be reduced.
  • Service data is the data to be transmitted that exists at the terminal device.
  • the service data includes: at least one of a first type of data and a second type of data, the first type of data includes data from a logical channel that supports triggering an IDT process, and the second type of data includes logic that does not support triggering an IDT process channel data.
  • the quality of service (Quality of Service, QoS) requirements of the services corresponding to the first type of data and the second type of data are different, and are mapped to different logical channels, and the network device configures whether the logical channel supports triggering the IDT process.
  • QoS Quality of Service
  • the International Telecommunication Union divides the services in the 5G network into three categories.
  • the first category is Enhanced Mobile Broadband (eMBB).
  • eMBB is a type of 5G service dedicated to mobile devices such as mobile phones.
  • the second category is Ultra Reliable & Low Latency Communication (URLLC), which will be mainly used in industrial applications and autonomous vehicles.
  • the third category is Massive Machine Type of Communication (mMTC).
  • mMTC Massive Machine Type of Communication
  • mMTC is the type of business that will be used in the "Internet of Things" and "Internet of Everything” scenarios.
  • the advantage of mMTC is that it allows a large number of adjacent devices to enjoy the communication connection.
  • the business data may include business data of the same or different business categories. For example: including eMBB data and URLLC data; or, including eMBB data, URLLC data and mMTC data; or, including only URLLC data.
  • the service data of different service types may correspond to one of the first type of data and the second type of data.
  • the URLLC service usually requires very high reliability and very low delay
  • the URLLC data can correspond to the first type of data, so that the URLLC data can be quickly transmitted through the IDT process;
  • the eMBB service usually requires a higher rate, However, very low delay and very low error rate are not required, and eMBB data can correspond to the second type of data. That is to say, URLLC data is transmitted on a logical channel that supports triggering an IDT process, and eMBB data is transmitted on a logical channel that does not support triggering an IDT process.
  • the service data After the service data arrives, if the logical channel to which the service data is mapped is a logical channel that supports triggering the IDT process, the service data is the first type of data; if the logical channel to which the service data is mapped is a logical channel that does not support triggering the IDT process, Then the service data is the second type of data.
  • the terminal device selects one of the triggering IDT process and the connection establishment and recovery process according to the type and/or data volume of the service data.
  • the types of business data can include the following three types:
  • the service data is URLLC data
  • the logical channel to which the URLLC data is mapped is a logical channel that supports triggering the IDT process
  • the URLLC data corresponds to the first type of data
  • the type of the service data is 1) including the first type of data
  • the service data is eMBB data
  • the logical channel to which the eMBB data is mapped is a logical channel that does not support triggering the IDT process
  • the eMBB data corresponds to the second type of data
  • the type of the service data is 2) including the second type of data
  • the service data is eMBB data and URLLC data
  • the logical channel to which the URLLC data is mapped is a logical channel that supports triggering the IDT process
  • the URLLC data corresponds to the first type of data
  • the logical channel to which the eMBB data is mapped is a logical channel that does not support triggering the IDT process
  • the eMBB data corresponds to the second type of data, and the type of
  • step 210 the terminal device executes one of steps 220 and 230. Specifically, when the terminal device triggers the IDT process, step 220 is executed; when the terminal device triggers the connection establishment restoration process, step 230 is executed.
  • step 220 the terminal device transmits service data using the IDT process.
  • the terminal device triggers the IDT process according to the type of service data
  • the triggered IDT process is used to transmit the service data.
  • the terminal device uses the IDT process to transmit the first type of data; in another possible implementation manner, the terminal device uses the IDT process to transmit the second type of data; in another possible implementation In the method, the terminal device transmits the first type of data and the second type of data using the IDT process.
  • Step 230 After the terminal device restores the RRC connection according to the connection establishment and restoration process, it transmits service data.
  • the terminal device triggers the connection establishment and restoration process according to the type of service data, after the RRC connection is restored, the service data is transmitted by the terminal device in the RRC connection state.
  • the terminal device in the RRC connection state transmits the first type of data; in another possible implementation, the terminal device in the RRC connection state transmits the second type of data; in another possible implementation In the implementation manner of , the terminal device in the RRC connection state transmits the first type of data and the second type of data.
  • one of the triggering IDT process and the connection establishment and recovery process can be selected according to the type and/or data volume of the service data.
  • the terminal device can reasonably trigger the IDT process according to the type and/or data volume of the service data, so that data transmission can be performed without restoring the RRC connection, and power consumption can be reduced.
  • the types of service data may include the following three types:
  • the business data includes the first type of data.
  • the first type of data may also be referred to as IDT data.
  • the business data includes the second type of data.
  • the second type of data may also be referred to as Non-IDT data.
  • the business data includes the first type of data and the second type of data.
  • the terminal device can select one of the triggering IDT process and the connection establishment and recovery process according to the determined service data type (1) or 2) or 3)) and/or the data amount. Below, this will be further exemplified.
  • Type 1) business data includes first type data.
  • FIG. 3 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 211:
  • Step 211 The terminal device triggers one of an IDT process and a connection establishment and restoration process according to the data volume of the first type of data.
  • the IDT process is triggered.
  • step 220 that is, use the IDT process to transmit the first type of data.
  • connection establishment and restoration process is triggered.
  • step 230 After the terminal device triggers the connection establishment restoration process, step 230 will be executed, that is, the connection establishment restoration process is triggered, and after the RRC connection is restored, the first type of data is transmitted in the RRC connection state.
  • the first threshold is the maximum transport block size (Transport BlockSize, TBS) corresponding to the first type of data.
  • TBS Transport BlockSize
  • the first threshold is used for the terminal device to judge whether the first type of data can trigger the IDT process.
  • the first threshold is predefined, or the first threshold is configured by the network device.
  • logical channel #1 and logical channel #2 are logical channels that can trigger the IDT process
  • the maximum TBS threshold 1 (ie, the first threshold) supported by the IDT process is assumed to be 2000 bits.
  • the terminal device If the service data to be transmitted by the terminal device comes from logical channel #1, or logical channel #2, or logical channel #1 + logical channel #2, and the data volume of IDT data (ie, the first type of data) is 1800 bits, it satisfies IDT data The amount of data ⁇ TBS threshold 1, the terminal device triggers the IDT process.
  • the terminal device If the service data to be transmitted by the terminal device comes from logical channel #1, or logical channel #2, or logical channel #1 + logical channel #2, and the data volume of IDT data (ie, the first type of data) is 2500 bits, it does not satisfy the IDT requirement. If the amount of data is less than the TBS threshold of 1, the terminal device triggers the connection establishment and recovery process.
  • Type 2 business data includes the second type of data.
  • FIG. 4 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 212-1:
  • Step 212-1 The terminal device triggers the connection establishment and restoration process.
  • Non-IDT data ie, the second type of data
  • the terminal device triggers the connection establishment and recovery process.
  • Step 230 After the terminal device restores the RRC connection according to the connection establishment and restoration process, it transmits service data.
  • the terminal device directly triggers the connection establishment and restoration process, and after the RRC connection is restored, the second type of data is transmitted in the RRC connection state.
  • logical channel #1 and logical channel #2 are logical channels that can trigger an IDT procedure.
  • the data volume of Non-IDT data (that is, the second type of data) is 1000 bits. Since the logical channel from the non-triggerable IDT process is not allowed to trigger the IDT process, the connection is triggered. Establish a recovery process.
  • FIG. 5 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 212-2:
  • Step 212-2 The terminal device triggers one of the IDT process and the connection establishment and restoration process according to the data volume of the second type of data.
  • Non-IDT data (second type data)
  • the terminal device can trigger one of the IDT process and the connection establishment recovery process according to the data volume of the second type data.
  • the IDT process is triggered.
  • step 220 that is, use the IDT process to transmit the second type of data.
  • the connection establishment and recovery process when the data amount of the second type of data is not less than the second threshold, trigger the connection establishment and recovery process.
  • step 230 After the terminal device triggers the connection establishment restoration process, step 230 will be executed, that is, the connection establishment restoration process is triggered, and after the RRC connection is restored, the second type of data is transmitted in the RRC connection state.
  • the second threshold is the maximum TBS corresponding to the second type of data.
  • the second threshold is used for the terminal device to judge whether the second type of data can trigger the IDT process.
  • the second threshold is predefined, or the second threshold is configured by the network device.
  • the second threshold and the above-mentioned first threshold are independent of each other, that is, the first threshold and the second threshold are the same or different, which is not limited in this embodiment of the present application.
  • logical channel #1 and logical channel #2 are logical channels that can trigger the IDT process
  • the maximum TBS threshold 2 (ie, the second threshold) supported by Non-IDT is assumed to be 1500 bits.
  • the data volume of Non-IDT data (ie, the second type of data) is 1000 bits, and the data volume of Non-IDT data ⁇ TBS threshold 2 is satisfied, and the terminal device triggers the IDT process.
  • the data volume of Non-IDT data (that is, the second type of data) is 2000 bits, which does not satisfy the data volume of Non-IDT data ⁇ TBS threshold 2, and the terminal device triggers connection establishment recovery process.
  • Type 3 business data includes first type data and second type data.
  • FIG. 6 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 213-1:
  • Step 213-1 The terminal device triggers the connection establishment and restoration process.
  • Non-IDT data ie, the second type of data
  • the terminal device triggers the connection establishment and recovery process.
  • Step 230 After the terminal device restores the RRC connection according to the connection establishment and restoration process, it transmits service data.
  • the terminal device directly triggers the connection establishment and restoration process, and after the RRC connection is restored, the first type of data and the second type of data are transmitted in the RRC connection state.
  • logical channel #1 and logical channel #2 are logical channels that can trigger an IDT procedure.
  • FIG. 7 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 213-2:
  • Step 213-2 The terminal device triggers one of the IDT process and the connection establishment and restoration process according to the data volume of the first type of data.
  • Non-IDT data the second type of data
  • the terminal device can trigger one of the IDT process and the connection establishment and restoration process according to the data volume of the first type of data.
  • the IDT process is triggered.
  • step 220 After the terminal device triggers the IDT process, step 220 will be executed, that is, the first type of data is first transmitted using the IDT process.
  • the terminal device will report a current buffer status report (Buffer Status Reports, BSR) to inform the network device of the buffer status.
  • BSR Buffer Status Reports
  • the network device can determine, according to the BSR, whether to restore the terminal device to the connected state or continue to schedule data transmission in the RRC inactive state.
  • connection establishment and restoration process is triggered.
  • step 230 will be executed, that is, the connection establishment and restoration process is triggered, and after the RRC connection is restored, the first type of data and the second type of data are transmitted in the RRC connection state.
  • the first threshold is the maximum TBS corresponding to the first type of data.
  • the first threshold is used for the terminal device to judge whether the IDT process can be triggered when the service data includes the first type of data.
  • the first threshold is predefined, or the first threshold is configured by the network device.
  • logical channel #1 and logical channel #2 are logical channels that can trigger the IDT process
  • the maximum TBS threshold 1 (ie, the first threshold) supported by the IDT process is assumed to be 2000 bits.
  • the service data to be transmitted by the terminal equipment comes from logical channel #1 + logical channel #4, or logical channel #2 + logical channel #4, or logical channel #1 + logical channel #2 + logical channel #4, where the IDT data
  • the data volume of the first type of data is 1800 bits
  • the data volume of Non-IDT data is 1000 bits. If the data volume of IDT data ⁇ TBS threshold 1 is satisfied, the terminal device triggers the IDT process.
  • the terminal device triggers the connection establishment recovery process.
  • FIG. 8 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, step 210 is replaced by step 213-3:
  • Step 213-3 The terminal device triggers one of the IDT process and the connection establishment and restoration process according to the data volume of the first type of data and the data volume of the second type of data.
  • Non-IDT data (second type data)
  • the terminal device can trigger one of the IDT process and the connection establishment recovery process according to the data volume of the second type data and the data volume of the first type data. kind.
  • the terminal device firstly makes a preliminary judgment according to the data volume of the second type of data whether to trigger the connection establishment and recovery process. the amount of data, and further judge whether to trigger the connection establishment and recovery process.
  • connection establishment and restoration process is triggered.
  • step 230 will be executed, that is, the connection establishment and restoration process is triggered, and after the RRC connection is restored, the first type of data and the second type of data are transmitted in the RRC connection state.
  • the IDT process is triggered.
  • the terminal device After the terminal device triggers the IDT process, it will perform step 220, that is, use the IDT process to transmit the first type of data.
  • the terminal device will report the current BSR to inform the network device of the cache status.
  • the network device can determine whether to restore the terminal device to the connected state or continue to schedule data transmission in the RRC inactive state according to the BSR.
  • connection establishment and restoration process is triggered.
  • step 230 is executed, that is, the connection establishment and restoration process is triggered, and after the RRC connection is restored, the first type of data and the second type of data are transmitted in the RRC connection state.
  • the first threshold is the maximum TBS corresponding to the first type of data.
  • the first threshold is used for the terminal device to judge whether the IDT process can be triggered when the service data includes the first type of data.
  • the first threshold is predefined, or the first threshold is configured by the network device.
  • the second threshold is the maximum TBS corresponding to the second type of data.
  • the second threshold is used for the terminal device to judge whether the IDT process can be triggered when the service data includes the second type of data.
  • the second threshold is predefined, or the second threshold is configured by the network device. It can be understood that the second threshold and the first threshold are independent of each other, that is, the first threshold and the second threshold are the same or different, which is not limited in this embodiment of the present application.
  • logical channel #1 and logical channel #2 are logical channels that can trigger the IDT process
  • the maximum TBS threshold 1 (ie, the first threshold) supported by the IDT process is assumed to be 2000 bits.
  • the maximum TBS threshold 2 (ie, the second threshold) supported by the IDT process is assumed to be 1500 bits.
  • the service data to be transmitted by the terminal equipment is logical channel #1 + logical channel #4, or logical channel #2 + logical channel #4, or logical channel #1 + logical channel #2 + logical channel #4, where IDT data (ie The data volume of the first type of data) is 2500bits, the data volume of Non-IDT data (ie the second type of data) is 2000bits, if the data volume of Non-IDT data ⁇ TBS threshold 2 is not satisfied, the terminal device triggers the connection establishment and recovery process.
  • IDT data ie The data volume of the first type of data
  • Non-IDT data ie the second type of data
  • the terminal device triggers the connection establishment and recovery process.
  • the service data to be transmitted by the terminal equipment comes from logical channel #1 + logical channel #4, or logical channel #2 + logical channel #4, or logical channel #1 + logical channel #2 + logical channel #4, where the IDT data
  • the amount of data (that is, the first type of data) is 1800 bits
  • the amount of data of Non-IDT data (that is, the second type of data) is 1000 bits, which satisfies the amount of data of Non-IDT data ⁇ TBS threshold 2, and the amount of data of IDT data ⁇
  • the TBS threshold is 1, and the terminal device triggers the IDT process.
  • the service data to be transmitted by the terminal equipment comes from logical channel #1 + logical channel #4, or logical channel #2 + logical channel #4, or logical channel #1 + logical channel #2 + logical channel #4, where the IDT data
  • the amount of data (that is, the first type of data) is 2500 bits
  • the amount of Non-IDT data (that is, the second type of data) is 1000 bits, which satisfies the data amount of Non-IDT data ⁇ TBS threshold 2, but does not meet the data of IDT data. If the amount is less than the TBS threshold of 1, the terminal device triggers the connection establishment and recovery process.
  • the terminal device can determine one of the triggering IDT process and the connection establishment and recovery process through any one of multiple judgment criteria according to different service data types, which improves the flexibility of the data transmission method.
  • the IDT process will be triggered only when all the service data is the first type of data and the data amount of the first type of data is less than the first threshold.
  • the triggering of the IDT process is not allowed, and the connection establishment and restoration process is directly triggered.
  • the IDT process Since the IDT process is not allowed to be triggered when the business data contains or is all of the second type of data, the IDT process can only be triggered when all the business data comes from the logical channel that is allowed to trigger the IDT process, so as to avoid abuse of the IDT process. Affects normal connection establishment and data transmission processes.
  • the service data includes the second type of data. determine whether to trigger the IDT process according to the data volume of the first type of data.
  • the service data includes the first type of data and the second type of data
  • the IDT process is triggered when the data amount of the first type of data is less than the first threshold.
  • the terminal device can perform the IDT process according to the situation of the first type of data, so that the data that meets the IDT conditions can be delivered to the network faster.
  • the service data includes the second type of data
  • the service data includes first type data and second type data, then when the data volume of the second type data is less than the second threshold, and the data volume of the first type data is When the value is less than the first threshold, the IDT process is triggered.
  • the terminal device can determine whether to directly return to the connected state according to the data volume of the second type of data. If the data volume of the second type of data is large, it needs to enter the connected state for transmission. The connection establishment and restoration process can be directly triggered, and if the data volume of the second type of data is small, the IDT process can still be triggered.
  • the terminal device can avoid the delay and delay caused by triggering the connection establishment process. Signaling overhead, and the data is quickly delivered to the network directly through the IDT process.
  • FIG. 9 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal device and the network device as shown in FIG. 1 . In this embodiment, the following steps are also included:
  • Step 240 the network device sends data transmission parameters to the terminal device.
  • Step 250 the terminal device receives the data transmission parameters.
  • the data transmission parameters include, but are not limited to, at least one of a logical channel that supports triggering an IDT process, a first threshold, and a second threshold.
  • the first threshold corresponds to the first type of data
  • the second threshold corresponds to the second type of data.
  • the data transmission parameter may also be predefined in a protocol standard, which is not limited in this embodiment of the present application.
  • the logical channel that supports the triggering of the IDT process can be configured through the data transmission parameters, and the specific service triggers the IDT process can be defined.
  • the steps performed by the terminal device can be independently implemented as a method for handling handover failure on the terminal device side
  • the steps performed by the network device can be implemented independently as a data transmission method on the network device side.
  • FIG. 10 shows a structural block diagram of a data transmission apparatus provided by an exemplary embodiment of the present application.
  • the apparatus may be implemented as a terminal device, or be implemented as a part of the terminal device.
  • the apparatus includes: a trigger module 1001 and a transmission module 1002 ;
  • Triggering module 1001 for triggering one of the inactive data transmission IDT process and the connection establishment recovery process according to the type and/or data volume of the service data;
  • the transmission module 1002 is configured to transmit service data by using the IDT process; or, after restoring the RRC connection according to the connection establishment and restoration process, transmit the service data;
  • the service data includes: at least one of a first type of data and a second type of data, the first type of data includes data from a logical channel that supports triggering an IDT process, and the second type of data includes logic that does not support triggering an IDT process channel data.
  • the service data includes: a first type of data; a triggering module 1001 configured to trigger one of an IDT process and a connection establishment and restoration process according to the data volume of the first type of data.
  • the triggering module 1001 is configured to trigger the IDT process when the data amount of the first type of data is less than the first threshold; the triggering module 1001 is configured to trigger the IDT process when the data amount of the first type of data is not When the value is less than the first threshold, the connection establishment and recovery process is triggered.
  • the service data includes: the second type of data; the trigger module 1001 is used to trigger the connection establishment and restoration process; or the trigger module 1001 is used to trigger the IDT process according to the data volume of the second type of data and one of the connection establishment recovery procedures.
  • the triggering module 1001 is configured to trigger the IDT process when the amount of data of the second type of data is less than the second threshold; the triggering module 1001 is configured to trigger the IDT process when the amount of data of the second type of data is not When the value is less than the second threshold, the connection establishment and recovery process is triggered.
  • the service data includes: first type data and second type data; triggering module 1001 for triggering a connection establishment and recovery process; or triggering module 1001 for triggering data according to the first type of data amount, triggers one of the IDT process and the connection establishment restoration process; or, the trigger module 1001 is used to trigger the IDT process and the connection establishment restoration process according to the first type of data and the data volume and the data volume of the second type of data.
  • triggering module 1001 for triggering a connection establishment and recovery process
  • triggering module 1001 for triggering data according to the first type of data amount triggers one of the IDT process and the connection establishment restoration process
  • the trigger module 1001 is used to trigger the IDT process and the connection establishment restoration process according to the first type of data and the data volume and the data volume of the second type of data.
  • the triggering module 1001 is configured to trigger the IDT process when the data amount of the first type of data is less than the first threshold; the triggering module 1001 is configured to trigger the IDT process when the data amount of the first type of data is not When the value is less than the first threshold, the connection establishment and recovery process is triggered.
  • the triggering module 1001 is configured to trigger the connection establishment and restoration process when the amount of data of the second type of data is not less than the second threshold; When the data volume is less than the second threshold, and the data volume of the first type of data is less than the first threshold, the IDT process is triggered; the trigger module 1001 is used to trigger the IDT process when the data volume of the second type of data is less than the second threshold. When the amount of data is not less than the first threshold, the connection establishment and restoration process is triggered.
  • the apparatus further includes: a receiving module 1003; the receiving module 1003 is configured to receive data transmission parameters configured by the network device; wherein the data transmission parameters include: a logical channel that supports triggering an IDT process, a first threshold and at least one of a second threshold, the first threshold corresponding to the first type of data, and the second threshold corresponding to the second type of data.
  • FIG. 11 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 101 , a receiver 102 , a transmitter 103 , a memory 104 and a bus 105 .
  • the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 102 and the transmitter 103 may be implemented as a communication component, which may be a communication chip.
  • the memory 104 is connected to the processor 101 through the bus 105 .
  • the memory 104 may be configured to store at least one instruction, and the processor 101 may be configured to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.
  • memory 104 may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • a computer-readable storage medium stores at least one instruction, at least one piece of program, code set or instruction set, the at least one instruction, the At least one piece of program, the code set or the instruction set is loaded and executed by the processor to implement the data transmission method executed by the communication device provided by the above-mentioned various method embodiments.
  • a computer program product or computer program comprising computer instructions stored in a computer readable storage medium from which a processor of a computer device can retrieve The computer instruction is read from the storage medium, and the processor executes the computer instruction, so that the computer device executes the data transmission method described in the above aspects.

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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 et un appareil de transmission de données, un dispositif terminal ainsi qu'un support d'enregistrement, qui se rapportent au domaine des communications sans fil. Le procédé est appliqué dans un dispositif terminal et comprend : le déclenchement d'un processus parmi un processus IDT de transmission de données d'état inactif et un processus de reprise de connexion en fonction du type de données de trafic et/ou de la taille de données ; l'utilisation du processus IDT et la transmission des données de trafic ; ou la transmission des données de trafic après la reprise d'une connexion de commande de ressource radio RRC selon le processus de reprise de connexion ; les données de trafic comprenant des données parmi des données d'un premier type et/ou des données d'un second type, les données du premier type comprenant des données provenant d'un canal logique qui prend en charge le déclenchement du processus IDT, et les données du second type comprenant des données provenant d'un canal logique qui ne prend pas en charge le déclenchement du processus IDT.
PCT/CN2020/101486 2020-07-10 2020-07-10 Procédé et appareil de transmission de données, dispositif terminal et support d'enregistrement Ceased WO2022006911A1 (fr)

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PCT/CN2020/101486 WO2022006911A1 (fr) 2020-07-10 2020-07-10 Procédé et appareil de transmission de données, dispositif terminal et support d'enregistrement

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