WO2022061885A1 - 数据传输方法、装置、终端设备和存储介质 - Google Patents

数据传输方法、装置、终端设备和存储介质 Download PDF

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Publication number
WO2022061885A1
WO2022061885A1 PCT/CN2020/118399 CN2020118399W WO2022061885A1 WO 2022061885 A1 WO2022061885 A1 WO 2022061885A1 CN 2020118399 W CN2020118399 W CN 2020118399W WO 2022061885 A1 WO2022061885 A1 WO 2022061885A1
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rsrp
drb
threshold
configuration information
rrc layer
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PCT/CN2020/118399
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English (en)
French (fr)
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林雪
石聪
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Oppo广东移动通信有限公司
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Priority to PCT/CN2020/118399 priority Critical patent/WO2022061885A1/zh
Priority to CN202080102873.7A priority patent/CN115918176A/zh
Publication of WO2022061885A1 publication Critical patent/WO2022061885A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing 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 (ie, the 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 an 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 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 small data transmission according to configuration information, so that data transmission can also be performed without restoring the RRC connection, thereby reducing terminal The power consumption of the device.
  • the technical solution is as follows:
  • a data transmission method is provided, which is applied to a terminal device, where the terminal device is in an inactive state, and the method includes:
  • the configuration information includes: at least one of DRB configuration information, a data volume threshold, and an RSRP threshold;
  • the DRB configuration information is used to configure a DRB that supports triggering the small data transmission.
  • a data transmission apparatus comprising: a determination module;
  • the determining module is configured to determine configuration information, the configuration information including: at least one of DRB configuration information, a data volume threshold and an RSRP threshold;
  • the determining module is configured to determine, according to the configuration information, whether to trigger small data transmission in an inactive state
  • the DRB configuration information is used to configure a DRB that supports triggering the small data transmission.
  • 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, the computer instructions being 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.
  • the terminal device When the terminal device is in an inactive state, it can determine whether to trigger small data transmission according to the configuration information.
  • the configuration information includes: at least one of DRB configuration information, a data volume threshold and an RSRP threshold.
  • the terminal device can reasonably Trigger small data transmission, so that data transmission can also be performed without restoring the RRC connection, so as to achieve the purpose of reducing the power consumption of the terminal device.
  • 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 schematic diagram of a preamble resource group 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 schematic diagram of a preamble resource group provided by an exemplary embodiment of the present application.
  • FIG. 8 is a structural block diagram of a data transmission apparatus provided by an exemplary embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • a new RRC state namely RRC_INACTIVE state, is defined for the purpose of reducing air interface signaling, rapidly restoring wireless connections, and rapidly restoring data services.
  • RRC_INACTIVE state mobility is based on terminal device cell selection and reselection, there is a connection between the Core Network (CN) and NR, the UE access context exists on a certain network device, and the paging Triggered by a radio access network (Radio Access Network, RAN), 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.
  • CN Core Network
  • RAN Radio Access Network
  • SDT is a data transmission method configured for terminal equipment in an inactive state. Through SDT, the terminal device can complete the transmission of service data without entering the connection state, thereby reducing the power consumption and overhead of the terminal device.
  • SDT can be uplink small data transmission based on random access procedure (two-step/four-step), or uplink small data transmission based on preconfigured resources (such as CG type1).
  • the embodiments of the present application are mainly aimed at uplink small data transmission based on a random access process (two steps/four steps).
  • 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 device as shown in FIG. 1, where the terminal device is in an inactive state, and the method includes:
  • Step 210 Determine configuration information, where the configuration information includes at least one of DRB configuration information, a data volume threshold and an RSRP threshold.
  • the configuration information is information for the terminal device to judge whether to trigger small data transmission.
  • Small data transmission is a process in which a terminal device performs data transmission in an inactive state.
  • Small data transmission does not require establishing an RRC connection between the terminal device and the network device, and the small data transmission in this embodiment of the present application is uplink small data transmission based on a random access process (two-step/four-step).
  • a terminal device with a small amount of data and a low transmission frequency if it can only establish a recovery process through the connection, restore the RRC connection with the network device and then perform data transmission. After the data transmission is completed, it needs to return to the inactive state. Large consumption.
  • the terminal device can avoid the transition of the connection state, thereby reducing power consumption.
  • the configuration information includes: at least one of data signaling bearer (Data Radio Bearer, DRB) configuration information, a data volume threshold, and a reference signal receiving power (Reference Signal Receiving Power, RSRP) threshold.
  • DRB Data Radio Bearer
  • RSRP Reference Signal Receiving Power
  • the DRB configuration information is used to configure a DRB that supports triggering small data transmission.
  • the DRB is used to carry service data of a quality of service (Quality of Service, QoS) flow between a terminal device and a network device.
  • QoS Quality of Service
  • DRBs may be configured as: DRBs that support triggering small data transmissions, and DRBs that do not support triggering small data transmissions.
  • the DRB configuration information may include: DRBs configured by the network device for the terminal device to support triggering small data transmission.
  • the DRB configuration information includes: DRB#1 and DRB#2, and the DRB configuration information is used to configure DRB#1 and DRB#2 to support triggering small data transmission.
  • the data volume threshold is the maximum Transport Block Size (TBS) corresponding to the service data.
  • TBS Transport Block Size
  • the data volume threshold may be predefined in a standard or configured by a network device, which is not limited in this embodiment of the present application.
  • the RSRP threshold is a threshold corresponding to the terminal equipment measuring RSRP.
  • the RSRP threshold may be predefined in a standard or configured by a network device, which is not limited in this embodiment of the present application.
  • Step 220 determine whether to trigger the small data transmission in the inactive state.
  • the terminal device determines whether to trigger the small data transmission in the inactive state according to the determined configuration information.
  • the terminal device after determining that the small data transmission in the inactive state is triggered, the terminal device will perform small data transmission to transmit service data; after determining that the small data transmission in the inactive state is not triggered, the terminal device will perform the connection establishment recovery process ( RRC connectionresume) to transmit business data.
  • the connection establishment and restoration procedure is a procedure for the terminal equipment to restore the RRC connection with the network equipment.
  • the terminal device when the terminal device is in an inactive state, whether to trigger small data transmission can be determined according to the configuration information.
  • the configuration information includes: DRB configuration information, data volume threshold and RSRP threshold. At least one, the terminal device can reasonably trigger small data transmission according to the configuration information, so that data transmission can be performed without restoring the RRC connection, and the purpose of reducing the power consumption of the terminal device is achieved.
  • the configuration information can be any one of the following three types:
  • the configuration information includes: DRB configuration information and a data volume threshold.
  • the terminal device determines whether to trigger small data transmission according to the DRB configuration information and a data volume threshold.
  • the configuration information includes: DRB configuration information, data volume threshold and RSRP threshold.
  • the terminal device determines whether to trigger small data transmission according to the DRB configuration information, a data volume threshold and an RSRP threshold.
  • the configuration information includes: DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • the terminal device determines whether to trigger small data transmission according to the DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • n RSRP thresholds correspond to n data volume thresholds
  • the configuration information includes: DRB configuration information, n RSRP thresholds, and n RSRP thresholds correspond to n data volume thresholds one-to-one, where n is a positive integer.
  • n RSRP thresholds correspond to m data volume thresholds
  • the configuration information includes: DRB configuration information, n RSRP thresholds, and n m data volume thresholds corresponding to the RSRP thresholds, where n is a positive integer, and m is a positive integer not less than n.
  • the present application provides three solutions of different configuration information, which can realize that the terminal device determines whether to trigger small data transmission according to the configuration of the network device.
  • the configuration information includes: DRB configuration information and a data volume threshold.
  • 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 shown in FIG. 1, where the terminal device is in an inactive state, and the terminal device includes but is not limited to: a radio resource control (Radio Resource Control, RRC) layer and a medium access control (Medium Access Control, MAC) layer.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • step 210 is replaced by step 211
  • step 220 is replaced by step 221.
  • This embodiment further includes step 231 and step 241:
  • Step 211 the RRC layer determines DRB configuration information and a data volume threshold.
  • the DRB configuration information is information obtained by the terminal device in the connected state.
  • the network device sends DRB configuration information to the terminal device, and configures a DRB that supports triggering small data transmission.
  • Step 221 the RRC layer determines whether to trigger small data transmission according to the DRB configuration information and the data volume threshold.
  • the RRC layer first determines whether the currently arriving service data belongs to a DRB that is allowed to trigger small data transmission according to the DRB configuration information, and then further determines whether the data volume threshold is met. Specifically include the following:
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; In the case that the data volume of the service data belonging to the DRB set is not greater than the data volume threshold, the RRC layer determines to trigger small data transmission.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2, and the data volume threshold is 1000 bits. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2. If the data volume of the service data belonging to the DRB set is 800 bits, which is less than the data volume threshold, the RRC layer determines to trigger small data transmission.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; In the case that the data volume of the service data belonging to the DRB set is greater than the data volume threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2, and the data volume threshold is 1000 bits. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB#2. If the data volume of the service data belonging to the DRB set is 1200 bits, which is greater than the data volume threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes the DRBs that support the triggering of small data transmission; in the case that the service data does not belong to or does not belong to the DRB set, the RRC layer determines not to trigger the small data transmission, and trigger the connection Establish a recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2. If the service data belongs to DRB#3 and the service data does not belong to the DRB set, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2.
  • the service data belongs to DRB#1 and DRB#3, and the service data part does not belong to the DRB set, then the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • Step 231 in the case where it is determined that the small data transmission is triggered, the RRC layer sends first indication information, where the first indication information is used to instruct the execution of the small data transmission.
  • the RRC layer determines that small data transmission is triggered, the RRC layer instructs the lower layers including the MAC layer to perform small data transmission through the first indication information.
  • Step 241 in the case of receiving the first indication information, the MAC layer selects a target resource group in the preamble resource group.
  • the MAC layer After receiving the first indication information indicated by the upper layer after triggering the small data transmission, the MAC layer will select a preamble resource group based on the measured RSRP.
  • the preamble resource group includes: at least one preamble and at least one of physical random access channel (Physical Random Access Channel, PRACH) resources used for transmitting at least one preamble.
  • PRACH Physical Random Access Channel
  • Step 241 includes: the MAC layer compares the measured RSRP with the i-th RSRP threshold; when the i-th RSRP threshold is less than the RSRP, the MAC layer determines the i-th preamble resource group as a candidate resource group; the MAC layer is in the candidate resource group. Determine the target resource group.
  • the MAC layer reports second indication information, and the second indication information is used to indicate cancellation of small data transmission; the RRC layer cancels small data transmission according to the received second indication information, Trigger the connection establishment recovery process.
  • the RSRP measured by the terminal device includes but is not limited to: the RSRP for the downlink path loss reference (the RSRP of the downlink path loss reference).
  • preamble resource group #1 there are 3 preamble resource groups: preamble resource group #1, preamble resource group #2, and preamble resource group #3.
  • Preamble resource group #1 corresponds to RSRP threshold #1
  • preamble resource group #2 corresponds to RSRP threshold #2
  • preamble resource group #3 corresponds to RSRP threshold #3
  • the candidate resource group includes: a preamble resource group #1, a preamble resource group #2, and a preamble resource group #3.
  • the terminal equipment selects preamble resource group #3, or preamble resource group #2, or preamble resource group #1.
  • the candidate resource group includes: a preamble resource group #1 and a preamble resource group #2.
  • the terminal equipment selects: preamble resource group #2, or preamble resource group #1.
  • the candidate resource group includes: the preamble resource group #1.
  • the terminal equipment selects the preamble resource group #1.
  • the MAC layer When the RSRP measured by the terminal device is less than the RSRP threshold#1, the MAC layer reports the second indication information to the upper layer, instructing the upper layer to cancel the transmission of small data, and initiates the connection establishment and recovery process.
  • the configuration information includes: DRB configuration information, data volume threshold and RSRP threshold.
  • 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 as shown in FIG. 1 , the terminal device is in an inactive state, and the terminal device includes: an RRC layer and a MAC layer.
  • step 210 is replaced by step 212
  • step 220 is replaced by step 222.
  • This embodiment further includes step 232 and step 242:
  • Step 212 the RRC layer determines the DRB configuration information, the data volume threshold and the RSRP threshold.
  • the DRB configuration information is information obtained by the terminal device in the connected state.
  • the network device sends DRB configuration information to the terminal device, and configures a DRB that supports triggering small data transmission.
  • Step 222 the RRC layer determines whether to trigger small data transmission according to the DRB configuration information, the data volume threshold and the RSRP threshold.
  • the RRC layer first determines whether the currently arriving service data belongs to a DRB that is allowed to trigger small data transmission, further determines whether the data volume threshold is met, and then further determines whether the RSRP threshold is met. Specifically include the following:
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; When the data volume of the service data belonging to the DRB set is not greater than the data volume threshold, the RRC layer compares the measured RSRP with the RSRP threshold; when the RSRP is not less than the RSRP threshold, the RRC layer determines to trigger small data transmission .
  • the RRC layer determines the DRB set according to the DRB configuration information to include: DRB#1 and DRB#2, the data volume threshold is 1000 bits, and the RSRP threshold is RSRP threshold. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2. The data volume of the service data belonging to the DRB set is 800 bits, which is less than the data volume threshold. If the RSRP measured by the terminal device is greater than the RSRP threshold, the RRC layer determines to trigger small data transmission.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; When the data volume of the service data belonging to the DRB set is not greater than the data volume threshold, the RRC layer compares the measured RSRP with the RSRP threshold; when the RSRP is less than the RSRP threshold, the RRC layer determines not to trigger small data transmission , triggering the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information to include: DRB#1 and DRB#2, the data volume threshold is 1000 bits, and the RSRP threshold is RSRP threshold. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2. The data volume of the service data belonging to the DRB set is 800 bits, which is less than the data volume threshold. If the RSRP measured by the terminal device is less than the RSRP threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; In the case that the data volume of the service data belonging to the DRB set is greater than the data volume threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information to include: DRB#1 and DRB#2, the data volume threshold is 1000 bits, and the RSRP threshold is RSRP threshold. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2. If the data volume of the service data belonging to the DRB set is 1200 bits, which is greater than the data volume threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that the service data does not belong to or does not belong to the DRB set, the RRC layer determines that the small data transmission is not triggered, and the connection is triggered Establish a recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2. If the service data belongs to DRB#3 and DRB#4, and the service data does not belong to the DRB set, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2. If the service data belongs to DRB#1, DRB#2 and DRB#3, and the service data part does not belong to the DRB set, the RRC layer determines not to trigger small data transmission and triggers the connection establishment and recovery process.
  • Step 232 in the case where it is determined that the small data transmission is triggered, the RRC layer sends third indication information, where the third indication information is used to instruct the execution of the small data transmission.
  • the RRC layer determines that small data transmission is triggered, the RRC layer instructs the lower layers including the MAC layer to perform small data transmission through the third indication information.
  • Step 242 in the case of receiving the third indication information, the MAC layer selects the target resource group from the preamble resource group.
  • the MAC layer After receiving the third indication information sent by the upper layer, the MAC layer will select a preamble resource group based on the measured RSRP.
  • the preamble resource group includes: at least one of at least one preamble and at least one of PRACH resources used for transmitting the at least one preamble.
  • Step 242 includes: the MAC layer compares the measured RSRP with the i-th RSRP threshold; when the i-th RSRP threshold is less than the RSRP, the MAC layer determines the i-th preamble resource group as a candidate resource group; the MAC layer is in the candidate resource group. Determine the target resource group.
  • the RSRP threshold is greater than or equal to the minimum value among the i-th RSRP thresholds. Since the RSRP measured by the terminal device is greater than the RSRP threshold when the RRC layer triggers small data transmission, if the RSRP threshold is greater than or equal to the minimum value among the i-th RSRP thresholds, it can be ensured that in the N preamble resource groups, there are corresponding The RSRP threshold is smaller than the RSRP preamble resource group measured by the terminal device, that is, there is a candidate resource group.
  • the RSRP includes: the RSRP of the downlink path loss reference (the RSRP of the downlink path loss reference).
  • preamble resource group #1 there are 3 preamble resource groups: preamble resource group #1, preamble resource group #2, and preamble resource group #3.
  • Preamble resource group #1 corresponds to RSRP threshold #1
  • preamble resource group #2 corresponds to RSRP threshold #2
  • preamble resource group #3 corresponds to RSRP threshold #3
  • RSRP threshold > RSRP threshold #1.
  • the candidate resource group includes: a preamble resource group #1, a preamble resource group #2, and a preamble resource group #3.
  • the terminal equipment selects preamble resource group #3, or preamble resource group #2, or preamble resource group #1.
  • the candidate resource group includes: a preamble resource group #1 and a preamble resource group #2.
  • the terminal equipment selects: preamble resource group #2, or preamble resource group #1.
  • the candidate resource group includes: a preamble resource group #1.
  • the terminal equipment selects the preamble resource group #1.
  • the configuration information includes: DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • 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 as shown in FIG. 1 , the terminal device is in an inactive state, and the terminal device includes: an RRC layer and a MAC layer.
  • step 210 is replaced by step 213, and step 220 is replaced by step 223.
  • This embodiment further includes step 233 and step 243:
  • Step 213 the RRC layer determines DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • the DRB configuration information is information obtained by the terminal device in the connected state.
  • the network device sends DRB configuration information to the terminal device, and configures a DRB that supports triggering small data transmission.
  • Step 223 the RRC layer determines whether to trigger small data transmission according to the DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • the RRC layer first determines whether the currently arriving service data belongs to a DRB that is allowed to trigger small data transmission according to the DRB configuration information, and then further determines whether the target RSRP threshold and its corresponding target data volume threshold are met.
  • the target RSRP threshold is at least one of the RSRP thresholds.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set.
  • the RRC layer determines the target RSRP threshold and the target data volume threshold, and the target RSRP threshold is in at least one RSRP threshold, less than or equal to the maximum value of RSRP measured by the terminal device, and the target data volume threshold corresponds to the target RSRP threshold; When the data volume of the aggregated service data is not greater than the target data volume threshold, the RRC layer determines to trigger small data transmission.
  • the configuration information determined by the RRC layer includes: the DRB set includes DRB#1 and DRB#2, RSRP threshold#1 and its corresponding data volume threshold 300 bits, RSRP threshold#2 and its corresponding data volume threshold 500 bits, RSRP threshold#3 Its corresponding data volume threshold is 1000 bits, RSRP threshold#3>RSRP threshold#2>RSRP threshold#1. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2.
  • RSRP threshold#2 RSRP measured by the terminal>RSRP threshold#1 (that is, the target RSRP threshold is RSRP threshold#1), and the data volume of the service data belonging to the DRB set is less than the data volume threshold corresponding to RSRP threshold#1 by 300 bits, Then the RRC layer determines to trigger small data transmission.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set.
  • the RRC layer determines the target RSRP threshold and the target data volume threshold, and the target RSRP threshold is in at least one RSRP threshold, less than or equal to the maximum value of RSRP measured by the terminal device, and the target data volume threshold corresponds to the target RSRP threshold;
  • the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the configuration information determined by the RRC layer includes: the DRB set includes DRB#1 and DRB#2, RSRP threshold#1 and its corresponding data volume threshold 300 bits, RSRP threshold#2 and its corresponding data volume threshold 500 bits, RSRP threshold#3 Its corresponding data volume threshold is 1000 bits, RSRP threshold#3>RSRP threshold#2>RSRP threshold#1. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2.
  • the RRC layer determines not to Trigger small data transmission, trigger connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that all or part of the service data belongs to the DRB set, the RRC layer determines the data volume of the service data belonging to the DRB set ; In the case that the RSRP measured by the terminal device is less than the minimum value of at least one RSRP threshold, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the configuration information determined by the RRC layer includes: the DRB set includes DRB#1 and DRB#2, RSRP threshold#1 and its corresponding data volume threshold 300 bits, RSRP threshold#2 and its corresponding data volume threshold 500 bits, RSRP threshold#3 Its corresponding data volume threshold is 1000 bits, RSRP threshold#3>RSRP threshold#2>RSRP threshold#1. All or part of the service data belongs to DRB#1, or DRB#2, or DRB#1+DRB2. If the RSRP measured by the terminal is less than RSRP threshold#1, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines the DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; in the case that the service data does not belong to or does not belong to the DRB set, the RRC layer determines that the small data transmission is not triggered, and the connection is triggered Establish a recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2. If the service data belongs to DRB#3 and the service data does not belong to the DRB set, the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • the RRC layer determines, according to the DRB configuration information, that the DRB set includes: DRB#1 and DRB#2.
  • the service data belongs to DRB#1 and DRB#3, and the service data part does not belong to the DRB set, then the RRC layer determines not to trigger small data transmission, and triggers the connection establishment and recovery process.
  • Step 233 in the case where it is determined that the small data transmission is triggered, the RRC layer sends fourth indication information, where the fourth indication information is used to instruct the execution of the small data transmission.
  • the RRC layer determines that small data transmission is triggered, the RRC layer instructs the lower layers including the MAC layer to perform small data transmission through the fourth indication information.
  • Step 243 in the case of receiving the fourth indication information, the MAC layer determines the target resource group in the preamble resource group.
  • the preamble resource group includes: at least one of at least one preamble and at least one of PRACH resources used for transmitting the at least one preamble.
  • the RSRP includes: RSRP used for downlink path loss reference.
  • the target resource group is a preamble resource group corresponding to the target RSRP threshold and the target data amount threshold.
  • the MAC layer does not need to select among the preamble resource groups, but determines the preamble resource group corresponding to the target RSRP threshold and the target data amount threshold as the target resource group.
  • the target RSRP threshold is RSRP threshold#1, and the target data volume threshold is 300 bits
  • the target resource group is preamble resource group #1
  • the target RSRP threshold is RSRP threshold#2
  • the target data volume threshold is 500 bits
  • the target The resource group is preamble resource group #2
  • the target RSRP threshold is RSRP threshold #3
  • the target data volume threshold is 1000 bits
  • the target resource group is preamble resource group #3.
  • the steps performed by the terminal device can be independently implemented as a data transmission method on the terminal device side
  • the steps performed by the network device can be independently implemented as a data transmission method on the network device side.
  • FIG. 8 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 may be implemented as a part of the terminal device.
  • the apparatus includes: a determination module 810;
  • a determination module 810 configured to determine configuration information, where the configuration information includes: at least one of DRB configuration information, a data volume threshold and an RSRP threshold;
  • a determination module 810 configured to determine whether to trigger small data transmission in an inactive state according to the configuration information
  • the DRB configuration information is used to configure a DRB that supports triggering small data transmission.
  • the configuration information includes: DRB configuration information and a data volume threshold; or, the configuration information includes: DRB configuration information, a data volume threshold, and an RSRP threshold; or, the configuration information includes: DRB configuration information, at least one An RSRP threshold and at least one data volume threshold corresponding to the at least one RSRP threshold.
  • the determining module 810 includes: an RRC layer unit 811 and a MAC layer unit 812; the configuration information includes: DRB configuration information and a data volume threshold; the RRC layer unit 811 is configured to, according to the DRB configuration information and data volume, Threshold, to determine whether to trigger small data transmission; RRC layer unit 811 is used to send first indication information when it is determined that small data transmission is triggered, and the first indication information is used to instruct the execution of small data transmission; MAC layer unit 812, with In the case of receiving the first indication information, the target resource group is selected from the preamble resource group.
  • the configuration information includes: DRB configuration information and a data volume threshold
  • the RRC layer unit 811 is configured to, according to the DRB configuration information and data volume, Threshold, to determine whether to trigger small data transmission
  • RRC layer unit 811 is used to send first indication information when it is determined that small data transmission is triggered, and the first indication information is used to instruct the execution of small data transmission
  • MAC layer unit 812
  • the RRC layer unit 811 is configured to determine a DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; the RRC layer unit 811 is used for all or part of the service data In the case of belonging to the DRB set, determine the data volume of the service data belonging to the DRB set; when the data volume of the service data belonging to the DRB set is not greater than the data volume threshold, determine to trigger small data transmission; or, the RRC layer unit 811, It is used to determine the data volume of the service data belonging to the DRB set when all or part of the service data belongs to the DRB set; when the data volume of the service data belonging to the DRB set is greater than the data volume threshold, it is determined not to trigger small data transmission, triggering the connection establishment and recovery process; or, the RRC layer unit 811 is used to determine that the small data transmission is not triggered and trigger the connection establishment and recovery process when the service data does not belong to or partially does not belong to the DRB set.
  • the i-th preamble resource group in the N preamble resource groups corresponds to the i-th RSRP threshold, N is a positive integer, and i is a positive integer not greater than N; the MAC layer unit 812, using In comparing the measured RSRP with the i-th RSRP threshold; the MAC layer unit 812 is used to determine the i-th preamble resource group as a candidate resource group when the i-th RSRP threshold is less than the RSRP; the MAC layer unit 812 is used for The target resource group is determined among the candidate resource groups.
  • the MAC layer unit 812 is configured to report second indication information when there is no candidate resource group, and the second indication information is used to instruct cancellation of small data transmission; the RRC layer unit 811 is configured to use According to the received second indication information, the small data transmission is canceled, and the connection establishment and restoration process is triggered.
  • the RSRP includes: RSRP used for downlink path loss reference.
  • the preamble resource group includes: at least one of at least one preamble and at least one of PRACH resources for transmitting the at least one preamble.
  • the determining module 810 includes: an RRC layer unit 811 and a MAC layer unit 812; the configuration information includes: DRB configuration information, a data volume threshold and an RSRP threshold; the RRC layer unit 811 is configured to configure the information according to the DRB , data volume threshold and RSRP threshold, to determine whether to trigger small data transmission; RRC layer unit 811 is used to send the third indication information when it is determined to trigger small data transmission, and the third indication information is used to instruct the execution of small data transmission; The MAC layer unit 812 is configured to select a target resource group from the preamble resource group in the case of receiving the third indication information.
  • the configuration information includes: DRB configuration information, a data volume threshold and an RSRP threshold
  • the RRC layer unit 811 is configured to configure the information according to the DRB , data volume threshold and RSRP threshold, to determine whether to trigger small data transmission
  • RRC layer unit 811 is used to send the third indication information when it is determined to trigger small data transmission, and the third indication information is used to
  • the RRC layer unit 811 is configured to determine a DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; the RRC layer unit 811 is used for all or part of the service data In the case of belonging to the DRB set, determine the data volume of the service data belonging to the DRB set; when the data volume of the service data belonging to the DRB set is not greater than the data volume threshold, compare the measured RSRP with the RSRP threshold; When not less than the RSRP threshold, it is determined to trigger small data transmission; or, the RRC layer unit 811 is used to determine the data volume of the service data belonging to the DRB set when all or part of the service data belongs to the DRB set; When the data volume of the service data in the DRB set is not greater than the data volume threshold, compare the measured RSRP with the RSRP threshold; when the RSRP is less than the RSRP threshold, determine not to trigger small data transmission, and trigger the connection establishment and recovery process; Or, the RRC layer unit 8
  • the i-th preamble resource group in the N preamble resource groups corresponds to the i-th RSRP threshold, N is a positive integer, and i is a positive integer not greater than N; the MAC layer unit 812, using In comparing the measured RSRP with the i-th RSRP threshold; the MAC layer unit 812 is used to determine the i-th preamble resource group as a candidate resource group when the i-th RSRP threshold is less than the RSRP; the MAC layer unit 812 is used for The target resource group is determined among the candidate resource groups.
  • the RSRP threshold is greater than or equal to the minimum value of the i-th RSRP thresholds.
  • the RSRP includes: RSRP used for downlink path loss reference.
  • the preamble resource group includes: at least one of at least one preamble and at least one of PRACH resources for transmitting the at least one preamble.
  • the determining module 810 includes: an RRC layer unit 811 and a MAC layer unit 812; the configuration information includes: DRB configuration information, at least one RSRP threshold, and at least one data volume threshold corresponding to the at least one RSRP threshold;
  • the RRC layer unit 811 is used to determine whether to trigger small data transmission according to the DRB configuration information, at least one RSRP threshold and at least one data volume threshold corresponding to the at least one RSRP threshold; the RRC layer unit 811 is used to trigger small data transmission when it is determined In the case of receiving the fourth indication information, the fourth indication information is sent, and the fourth indication information is used to instruct the execution of small data transmission;
  • the MAC layer unit 812 is used to determine the target resource group in the preamble resource group in the case of receiving the fourth indication information .
  • the RRC layer unit 811 is configured to determine a DRB set according to the DRB configuration information, and the DRB set includes DRBs that support small data transmission triggering; the RRC layer unit 811 is used for all or part of the service data In the case of belonging to the DRB set, determine the data volume of the service data belonging to the DRB set; determine the target RSRP threshold and the target data volume threshold, and the target RSRP threshold is, in at least one RSRP threshold, less than or equal to the maximum RSRP measured by the terminal device.
  • the target data volume threshold corresponds to the target RSRP threshold; when the data volume of the service data belonging to the DRB set is not greater than the target data volume threshold, it is determined to trigger small data transmission; or, the RRC layer unit 811 is used for all or When part of the service data belongs to the DRB set, determine the data volume of the service data belonging to the DRB set; determine the target RSRP threshold and the target data volume threshold, and the target RSRP threshold is in at least one RSRP threshold, less than or equal to the terminal device measurement
  • the maximum value of the RSRP, the target data volume threshold corresponds to the target RSRP threshold; when the data volume of the service data belonging to the DRB set is greater than the target data volume threshold, it is determined not to trigger small data transmission, and trigger the connection establishment and recovery process; or,
  • the RRC layer unit 811 is configured to determine the data volume of the service data belonging to the DRB set when all or part of the service data belongs to the DRB set; when the RSRP measured by the terminal device is less than
  • the target resource group is a preamble resource group corresponding to the target RSRP threshold and the target data amount threshold.
  • the RSRP includes: RSRP used for downlink path loss reference.
  • the preamble resource group includes: at least one of at least one preamble and at least one of PRACH resources for transmitting the at least one preamble.
  • the DRB configuration information is information obtained by the terminal device in a connected state.
  • FIG. 9 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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Abstract

本申请公开了一种数据传输方法、装置、终端设备和存储介质,涉及无线通信领域。该方法应用于终端设备中,所述终端设备处于非激活态,该方法包括:确定配置信息,所述配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种;根据所述配置信息,确定是否触发非激活态的小数据传输;其中,所述DRB配置信息用于配置支持触发所述小数据传输的DRB。

Description

数据传输方法、装置、终端设备和存储介质 技术领域
本申请涉及无线通信领域,特别涉及一种数据传输方法、装置、终端设备和存储介质。
背景技术
RRC_INACTIVE态(即非激活态)是新空口(New Radio,NR)系统从节能角度考虑引入的新状态。
对于非激活态的终端设备,无线承载和全部无线资源都会被释放,但终端设备侧和网络设备侧保留UE接入上下文,以便快速恢复无线资源控制(Radio Resource Control,RRC)连接。
相关技术中,在非激活态下,终端设备若想进行数据传输,需要触发连接建立恢复流程以恢复RRC连接,进入连接态进行数据传输,功耗较大。
发明内容
本申请实施例提供了一种数据传输方法、装置、终端设备和存储介质,终端设备能够根据配置信息,合理地触发小数据传输,从而不需要恢复RRC连接,也能够进行数据传输,从而降低终端设备的功耗。所述技术方案如下:
根据本申请的一个方面,提供了一种数据传输方法,应用于终端设备中,所述终端设备处于非激活态,所述方法包括:
确定配置信息,所述配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种;
根据所述配置信息,确定是否触发非激活态的小数据传输;
其中,所述DRB配置信息用于配置支持触发所述小数据传输的DRB。
根据本申请的一个方面,提供了一种数据传输装置,所述装置包括:确定模块;
所述确定模块,用于确定配置信息,所述配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种;
所述确定模块,用于根据所述配置信息,确定是否触发非激活态的小数据传输;
其中,所述DRB配置信息用于配置支持触发所述小数据传输的DRB。
根据本申请的一个方面,提供了一种终端设备,所述终端设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的数据传输方法。
根据本申请的一个方面,提供了一种计算机可读存储介质,所述可读存储介质中存储有可执行指令,所述可执行指令由处理器加载并执行以实现如上述方面所述的数据传输方法。
根据本申请的一个方面,提供了一种计算机程序产品或计算机程序,该计算机程序产品或计算机程序包括计算机指令,该计算机指令存储在计算机可读存储介质中,计算机设备的处理器从计算机可读存储介质读取该计算机指令,处理器执行该计算机指令,使得该计算机设备执行上述方面所述的数据传输方法。
本申请实施例提供的技术方案至少包括如下有益效果:
在终端设备处于非激活态的情况下,可以根据配置信息确定是否触发小数据传输,配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种,终端设备能够根据配置信息合理地触发小数据传输,从而不需要恢复RRC连接,也能够进行数据传输,实现降低终端设备的功耗的目的。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供的通信系统的框图;
图2是本申请一个示例性实施例提供的数据传输方法的流程图;
图3是本申请一个示例性实施例提供的数据传输方法的流程图;
图4是本申请一个示例性实施例提供的前导码资源组的示意图;
图5是本申请一个示例性实施例提供的数据传输方法的流程图;
图6是本申请一个示例性实施例提供的数据传输方法的流程图;
图7是本申请一个示例性实施例提供的前导码资源组的示意图;
图8是本申请一个示例性实施例提供的数据传输装置的结构框图;
图9是本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
首先,对本申请实施例中涉及的名词进行简单介绍:
RRC状态:
NR中为了降低空口信令和快速恢复无线连接,快速恢复数据业务的目的,定义的一个新的RRC状态,即RRC_INACTIVE态。
RRC_INACTIVE态(即非激活态):移动性为基于终端设备的小区选择重选,存在核心网(Core Network,CN)与NR之间的连接,UE接入上下文存在某个网络设备上,寻呼由无线接入网(Radio Access Network,RAN)触发,基于RAN的寻呼区域由RAN管理,网络设备侧知道终端设备的位置是基于RAN的寻呼区域级别的。
非激活态的小数据传输(Small Data Transmission,SDT):
SDT是为处于非激活态的终端设备配置的一种数据传输方式。通过SDT,终端设备无需进入连接态,即可完成业务数据的传输,从而减小终端设备的功耗和开销。
SDT可以是基于随机接入过程(两步/四步)的上行小数据传输,也可以是基于预配置资源(如CG type1)的上行小数据传输。本申请实施例主要针对的是基于随机接入过程(两步/四步)的上行小数据传输。
图1示出了本申请一个示例性实施例提供的通信系统的框图,该通信系统可以包括:接入网12和终端设备14。
接入网12中包括若干个网络设备120。网络设备120可以是基站,所述基站是一种部署在接入网中用以为终端提供无线通信功能的装置。基站可以包括各种形式的宏基站,微基站,中继站,接入点等等。在采用不同的无线接入技术的系统中,具备基站功能的设备的名称可能会有所不同,例如在LTE系统中,称为eNodeB或者eNB;在5G NR-U系统中,称为gNodeB或者gNB。随着通信技术的演进,“基站”这一描述可能会变化。为方便本申请实施例中,上述为终端设备14提供无线通信功能的装置统称为网络设备。
终端设备14可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备,移动台(Mobile Station,MS),终端(terminal device)等等。为方便描述,上面提到的设备统称为终端。网络设备120与终端设备14之间通过某种空口技术互相通信,例如Uu接口。可选地,终端设备处于RRC_INACTIVE态。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System  of Mobile Communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)系统、先进的长期演进(Advanced Long Term Evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to Unlicensed spectrum,LTE-U)系统、NR-U系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、下一代通信系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信以及车联网(Vehicle to Everything,V2X)系统等。本申请实施例也可以应用于这些通信系统。
图2示出了本申请一个示例性实施例提供的数据传输方法的流程图。该方法可以应用于如图1示出的终端设备中,终端设备处于非激活态,该方法包括:
步骤210,确定配置信息,配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种。
配置信息是用于供终端设备对是否触发小数据传输进行判断的信息。
小数据传输是终端设备在非激活态进行数据传输的流程。小数据传输不需要终端设备与网络设备之间建立RRC连接,本申请实施例中的小数据传输是基于随机接入过程(两步/四步)的上行小数据传输。对于数据量小且传输频率低的终端设备来说,若只能通过连接建立恢复流程,恢复与网络设备之间的RRC连接再进行数据传输,数据传输完成后又需要回到非激活态,功耗较大。通过进行非激活态的小数据传输,终端设备能够避免进行连接状态的转换,从而减少功耗。
配置信息包括:数据信令承载(Data Radio Bearer,DRB)配置信息、数据量阈值和参考信号接收功率(Reference Signal Receiving Power,RSRP)阈值中的至少一种。可以理解的是,上述数据量阈值和RSRP阈值的数量可以是一个或多个,本申请实施例对此不进行限制。
其中,DRB配置信息用于配置支持触发小数据传输的DRB。DRB用于在终端设备和网络设备之间承载服务质量(Quality of Service,QoS)流的业务数据。可选的,不同DRB对应的QoS要求不同。DRB可以被配置为:支持触发小数据传输的DRB,和不支持触发小数据传输的DRB。DRB配置信息中可以包括:网络设备为终端设备配置的支持触发小数据传输的DRB。示例性的,DRB配置信息包括:DRB#1和DRB#2,DRB配置信息用于配置DRB#1和DRB#2支持触发小数据传输。
其中,数据量阈值是业务数据对应的最大传输块大小(Transport Block Size,TBS)。数据量阈值可以是标准中预定义的,也可以是网络设备配置的,本申请实施例对此不进行限制。
其中,RSRP阈值是终端设备测量RSRP对应的门限值。RSRP阈值可以是标准中预定义的,也可以是网络设备配置的,本申请实施例对此不进行限制。
步骤220,根据配置信息,确定是否触发非激活态的小数据传输。
在终端设备确定配置信息后,终端设备根据确定好的配置信息,对是否触发非激活态的小数据传输进行判断。
可选的,在确定触发非激活态的小数据传输后,终端设备将执行小数据传输以传输业务数据;在确定不触发非激活态的小数据传输后,终端设备将执行连接建立恢复流程(RRC connectionresume)以传输业务数据。其中,连接建立恢复流程是终端设备恢复与网络设备之 间的RRC连接的流程。
综上所述,本实施例提供的方法,在终端设备处于非激活态的情况下,可以根据配置信息确定是否触发小数据传输,配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种,终端设备能够根据配置信息合理地触发小数据传输,从而不需要恢复RRC连接,也能够进行数据传输,实现降低终端设备的功耗的目的。
在基于图2的可选实施例中,配置信息可以是如下三种中的任意一种:
一、配置信息包括:DRB配置信息和数据量阈值。
终端设备根据DRB配置信息和一个数据量阈值,确定是否触发小数据传输。
二、配置信息包括:DRB配置信息、数据量阈值和RSRP阈值。
终端设备根据DRB配置信息、一个数据量阈值和一个RSRP阈值,确定是否触发小数据传输。
三、配置信息包括:DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值。
终端设备根据DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值,确定是否触发小数据传输。
在一种实现方式中,RSRP阈值与数据量阈值之间存在一对一的对应关系,n个RSRP阈值对应n个数据量阈值,配置信息包括:DRB配置信息、n个RSRP阈值和与n个RSRP阈值一一对应的n个数据量阈值,n为正整数。
在另一种实现方式中,RSRP阈值与数据量阈值之间存在一对多的对应关系,n个RSRP阈值对应m个数据量阈值,配置信息包括:DRB配置信息、n个RSRP阈值和与n个RSRP阈值对应的m个数据量阈值,n为正整数,m是不小于n的正整数。
下面的实施例仅以RSRP阈值与数据量阈值之间存在一对一的对应关系进行示例性的说明。
综上所述,本申请提供了3种不同的配置信息的方案,可以实现终端设备根据网络设备的配置,确定是否触发小数据传输。
一、配置信息包括:DRB配置信息和数据量阈值。
图3示出了本申请一个示例性实施例提供的数据传输方法的流程图。该方法可以应用于如图1示出的终端设备中,终端设备处于非激活态,终端设备包括但不限于:无线资源控制(Radio Resource Control,RRC)层和媒体接入控制(Medium Access Control,MAC)层。在本实施例中,步骤210替换实现为步骤211,步骤220替换实现为步骤221,本实施例还包括步骤231和步骤241:
步骤211,RRC层确定DRB配置信息和数据量阈值。
可选的,DRB配置信息是终端设备在连接态时获取到的信息。在终端设备处于连接态时,网络设备向终端设备发送DRB配置信息,配置支持触发小数据传输的DRB。
步骤221,RRC层根据DRB配置信息和数据量阈值,确定是否触发小数据传输。
RRC层先根据DRB配置信息,确定当前到达的业务数据是否属于允许触发小数据传输的DRB,再进一步判断是否满足数据量阈值。具体包括如下情况:
1)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,RRC层确定触发小数据传输。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2,数据量阈值为1000比特。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。属于DRB集合的业务数据的数据量为800比特,小于数据量阈值,则RRC层确定触发小数据 传输。
2)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量大于数据量阈值的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2,数据量阈值为1000比特。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB#2。属于DRB集合的业务数据的数据量为1200比特,大于数据量阈值,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
3)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在业务数据不属于或部分不属于DRB集合的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#3,业务数据不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#1和DRB#3,业务数据部分不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
步骤231,在确定触发小数据传输的情况下,RRC层发送第一指示信息,第一指示信息用于指示执行小数据传输。
在RRC层判断触发小数据传输的情况下,RRC层通过第一指示信息,指示包括MAC层在内的低层执行小数据传输。
步骤241,在接收到第一指示信息的情况下,MAC层在前导码资源组中选择目标资源组。
MAC层在接收到上层触发小数据传输后指示的第一指示信息后,将基于测量得到的RSRP选择前导码资源组。
其中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的物理随机接入信道(Physical Random Access Channel,PRACH)资源中的至少一种。
可选的,存在N个前导码资源组,N个前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,N为正整数,i为不大于N的正整数。步骤241包括:MAC层将测量得到的RSRP与第iRSRP阈值进行比较;在第iRSRP阈值小于RSRP的情况下,MAC层将第i个前导码资源组确定为候选资源组;MAC层在候选资源组中确定出目标资源组。
可选的,在不存在候选资源组的情况下,MAC层上报第二指示信息,第二指示信息用于指示取消小数据传输;RRC层根据接收到的第二指示信息,取消小数据传输,触发连接建立恢复流程。
可选的,终端设备测量到的RSRP包括但不限于:用于下行路损参考的RSRP(the RSRP of the downlink path loss reference)。
示例性的,结合参考图4,存在3个前导码资源组:前导码资源组#1、前导码资源组#2和前导码资源组#3。前导码资源组#1对应于RSRP threshold#1,前导码资源组#2对应于RSRP threshold#2,前导码资源组#3对应于RSRP threshold#3,且RSRP threshold#3>RSRP threshold#2>RSRP threshold#1。
当终端设备测量得到的RSRP大于RSRP threshold#3时,候选资源组包括:前导码资源组#1、前导码资源组#2和前导码资源组#3。终端设备选择前导码资源组#3,或前导码资源组#2,或前导码资源组#1。
当终端设备测量得到的RSRP大于RSRP threshold#2时,候选资源组包括:前导码资源组#1和前导码资源组#2。终端设备选择:前导码资源组#2,或前导码资源组#1。
当终端设备测量得到的RSRP大于RSRP threshold#1时,候选资源组包括:前导码资源 组#1。终端设备选择前导码资源组#1。
当终端设备测量得到的RSRP小于RSRP threshold#1时,MAC层向上层上报第二指示信息,指示上层取消小数据传输,发起连接建立恢复流程。
二、配置信息包括:DRB配置信息、数据量阈值和RSRP阈值。
图5示出了本申请一个示例性实施例提供的数据传输方法的流程图。该方法可以应用于如图1示出的终端设备中,终端设备处于非激活态,终端设备包括:RRC层和MAC层。在本实施例中,步骤210替换实现为步骤212,步骤220替换实现为步骤222,本实施例还包括步骤232和步骤242:
步骤212,RRC层确定DRB配置信息、数据量阈值和RSRP阈值。
可选的,DRB配置信息是终端设备在连接态时获取到的信息。在终端设备处于连接态时,网络设备向终端设备发送DRB配置信息,配置支持触发小数据传输的DRB。
步骤222,RRC层根据DRB配置信息、数据量阈值和RSRP阈值,确定是否触发小数据传输。
RRC层先确定当前到达的业务数据是否属于允许触发小数据传输的DRB,进一步判断是否满足数据量阈值,再进一步判断是否满足RSRP阈值。具体包括如下情况:
1)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,RRC层将测量得到的RSRP与RSRP阈值进行比较;在RSRP不小于RSRP阈值的情况下,RRC层确定触发小数据传输。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2,数据量阈值为1000比特,RSRP阈值为RSRP threshold。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。属于DRB集合的业务数据的数据量为800比特,小于数据量阈值。终端设备测量得到的RSRP大于RSRP threshold,则RRC层确定触发小数据传输。
2)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,RRC层将测量得到的RSRP与RSRP阈值进行比较;在RSRP小于RSRP阈值的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2,数据量阈值为1000比特,RSRP阈值为RSRP threshold。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。属于DRB集合的业务数据的数据量为800比特,小于数据量阈值。终端设备测量得到的RSRP小于RSRP threshold,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
3)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量大于数据量阈值的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2,数据量阈值为1000比特,RSRP阈值为RSRP threshold。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。属于DRB集合的业务数据的数据量为1200比特,大于数据量阈值,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
4)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在业务数据不属于或部分不属于DRB集合的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#3和DRB#4,业务数据不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#1、DRB#2和DRB#3,业务数据部分不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
步骤232,在确定触发小数据传输的情况下,RRC层发送第三指示信息,第三指示信息用于指示执行小数据传输。
在RRC层判断触发小数据传输的情况下,RRC层通过第三指示信息,指示包括MAC层在内的低层执行小数据传输。
步骤242,在接收到第三指示信息的情况下,MAC层在前导码资源组中选择目标资源组。
MAC层在接收到上层发送的第三指示信息后,将基于测量得到的RSRP选择前导码资源组。
其中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的PRACH资源中的至少一种。
可选的,存在N个前导码资源组,N个前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,N为正整数,i为不大于N的正整数。步骤242包括:MAC层将测量得到的RSRP与第iRSRP阈值进行比较;在第iRSRP阈值小于RSRP的情况下,MAC层将第i个前导码资源组确定为候选资源组;MAC层在候选资源组中确定出目标资源组。
可选的,RSRP阈值大于或等于第iRSRP阈值中的最小值。由于在RRC层触发小数据传输的情况下,终端设备测量得到的RSRP大于RSRP阈值,若RSRP阈值大于或等于第iRSRP阈值中的最小值,则可以确保N个前导码资源组中,存在对应的RSRP阈值小于终端设备测量得到的RSRP的前导码资源组,即:存在候选资源组。
可选的,RSRP包括:用于下行路损参考的RSRP(the RSRP of the downlink path loss reference)。
示例性的,结合参考图4,存在3个前导码资源组:前导码资源组#1、前导码资源组#2和前导码资源组#3。前导码资源组#1对应于RSRP threshold#1,前导码资源组#2对应于RSRP threshold#2,前导码资源组#3对应于RSRP threshold#3,且RSRP threshold#3>RSRP threshold#2>RSRP threshold#1,RSRP阈值>=RSRP threshold#1。
当终端设备测量得到的RSRP大于RSRP threshold#3时,候选资源组包括:前导码资源组#1、前导码资源组#2和前导码资源组#3。终端设备选择前导码资源组#3,或前导码资源组#2,或前导码资源组#1。
当终端设备测量得到的RSRP大于RSRP threshold#2时,候选资源组包括:前导码资源组#1和前导码资源组#2。终端设备选择:前导码资源组#2,或前导码资源组#1。
当终端设备测量得到的RSRP大于RSRP threshold#1时,候选资源组包括:前导码资源组#1。终端设备选择前导码资源组#1。
三、配置信息包括:DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值。
图6示出了本申请一个示例性实施例提供的数据传输方法的流程图。该方法可以应用于如图1示出的终端设备中,终端设备处于非激活态,终端设备包括:RRC层和MAC层。在本实施例中,步骤210替换实现为步骤213,步骤220替换实现为步骤223,本实施例还包括步骤233和步骤243:
步骤213,RRC层确定DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值。
可选的,DRB配置信息是终端设备在连接态时获取到的信息。在终端设备处于连接态时, 网络设备向终端设备发送DRB配置信息,配置支持触发小数据传输的DRB。
可选的,RSRP阈值与数据量阈值之间存在一对一的对应关系。
步骤223,RRC层根据DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值,确定是否触发小数据传输。
RRC层先根据DRB配置信息,确定当前到达的业务数据是否属于允许触发小数据传输的DRB,再进一步判断是否满足目标RSRP阈值及其对应的目标数据量阈值,目标RSRP阈值是至少一个RSRP阈值中的一个RSRP阈值。具体包括如下情况:
1)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;RRC层确定目标RSRP阈值和目标数据量阈值,目标RSRP阈值是在至少一个RSRP阈值中,小于或等于终端设备测量得到的RSRP的最大值,目标数据量阈值与目标RSRP阈值对应;在属于DRB集合的业务数据的数据量不大于目标数据量阈值的情况下,RRC层确定触发小数据传输。
示例性的,结合参考图7。RRC层确定配置信息包括:DRB集合包括DRB#1和DRB#2,RSRP threshold#1及其对应的数据量阈值300比特,RSRP threshold#2及其对应的数据量阈值500比特,RSRP threshold#3及其对应的数据量阈值1000比特,RSRP threshold#3>RSRP threshold#2>RSRP threshold#1。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。RSRP threshold#2>终端测量得到的RSRP>RSRP threshold#1(即目标RSRP阈值是RSRP threshold#1),且属于DRB集合的业务数据的数据量小于RSRP threshold#1对应的数据量阈值300比特,则RRC层确定触发小数据传输。
2)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;RRC层确定目标RSRP阈值和目标数据量阈值,目标RSRP阈值是在至少一个RSRP阈值中,小于或等于终端设备测量得到的RSRP的最大值,目标数据量阈值与目标RSRP阈值对应;在属于DRB集合的业务数据的数据量大于目标数据量阈值的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,结合参考图7。RRC层确定配置信息包括:DRB集合包括DRB#1和DRB#2,RSRP threshold#1及其对应的数据量阈值300比特,RSRP threshold#2及其对应的数据量阈值500比特,RSRP threshold#3及其对应的数据量阈值1000比特,RSRP threshold#3>RSRP threshold#2>RSRP threshold#1。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。终端测量得到的RSRP>RSRP threshold#3(即目标RSRP阈值是RSRP threshold#3),且属于DRB集合的业务数据的数据量大于RSRP threshold#1对应的数据量阈值1000比特,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
3)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在全部或部分的业务数据属于DRB集合的情况下,RRC层确定属于DRB集合的业务数据的数据量;在终端设备测量得到的RSRP小于至少一个RSRP阈值中的最小值的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,结合参考图7。RRC层确定配置信息包括:DRB集合包括DRB#1和DRB#2,RSRP threshold#1及其对应的数据量阈值300比特,RSRP threshold#2及其对应的数据量阈值500比特,RSRP threshold#3及其对应的数据量阈值1000比特,RSRP threshold#3>RSRP threshold#2>RSRP threshold#1。全部或者部分的业务数据属于DRB#1,或DRB#2,或DRB#1+DRB2。终端测量得到的RSRP<RSRP threshold#1,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
4)RRC层根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;在业务数据不属于或部分不属于DRB集合的情况下,RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#3,业务数据不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
示例性的,RRC层根据DRB配置信息确定DRB集合包括:DRB#1和DRB#2。业务数据属于DRB#1和DRB#3,业务数据部分不属于DRB集合,则RRC层确定不触发小数据传输,触发连接建立恢复流程。
步骤233,在确定触发小数据传输的情况下,RRC层发送第四指示信息,第四指示信息用于指示执行小数据传输。
在RRC层判断触发小数据传输的情况下,RRC层通过第四指示信息,指示包括MAC层在内的低层执行小数据传输。
步骤243,在接收到第四指示信息的情况下,MAC层在前导码资源组中确定目标资源组。
其中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的PRACH资源中的至少一种。
可选的,RSRP包括:用于下行路损参考的RSRP。
可选的,目标资源组是对应于目标RSRP阈值和目标数据量阈值的前导码资源组。MAC层无需在前导码资源组中进行选择,而是将对应于目标RSRP阈值和目标数据量阈值的前导码资源组确定为目标资源组。
示例性的,结合参考图7。若目标RSRP阈值是RSRP threshold#1,目标数据量阈值是300比特,则目标资源组是前导码资源组#1;若目标RSRP阈值是RSRP threshold#2,目标数据量阈值是500比特,则目标资源组是前导码资源组#2;若目标RSRP阈值是RSRP threshold#3,目标数据量阈值是1000比特,则目标资源组是前导码资源组#3。
需要说明的是,上述方法实施例可以分别单独实施,也可以组合实施,本申请对此不进行限制。
在上述各个实施例中,由终端设备执行的步骤可以单独实现成为终端设备一侧的数据传输方法,由网络设备执行的步骤可以单独实现成为网络设备一侧的数据传输方法。
图8示出了本申请一个示例性实施例提供的数据传输装置的结构框图,该装置可以实现成为终端设备,或者,实现成为终端设备中的一部分,该装置包括:确定模块810;
确定模块810,用于确定配置信息,配置信息包括:DRB配置信息、数据量阈值和RSRP阈值中的至少一种;
确定模块810,用于根据配置信息,确定是否触发非激活态的小数据传输;
其中,DRB配置信息用于配置支持触发小数据传输的DRB。
在一个可选的实施例中,配置信息包括:DRB配置信息和数据量阈值;或,配置信息包括:DRB配置信息、数据量阈值和RSRP阈值;或,配置信息包括:DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值。
在一个可选的实施例中,确定模块810包括:RRC层单元811和MAC层单元812;配置信息包括:DRB配置信息和数据量阈值;RRC层单元811,用于根据DRB配置信息和数据量阈值,确定是否触发小数据传输;RRC层单元811,用于在确定触发小数据传输的情况下,发送第一指示信息,第一指示信息用于指示执行小数据传输;MAC层单元812,用于在接收到第一指示信息的情况下,在前导码资源组中选择目标资源组。
在一个可选的实施例中,RRC层单元811,用于根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,确定触发小数据传输;或,RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数 据量;在属于DRB集合的业务数据的数据量大于数据量阈值的情况下,确定不触发小数据传输,触发连接建立恢复流程;或,RRC层单元811,用于在业务数据不属于或部分不属于DRB集合的情况下,确定不触发小数据传输,触发连接建立恢复流程。
在一个可选的实施例中,N个前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,N为正整数,i为不大于N的正整数;MAC层单元812,用于将测量得到的RSRP与第iRSRP阈值进行比较;MAC层单元812,用于在第iRSRP阈值小于RSRP的情况下,将第i个前导码资源组确定为候选资源组;MAC层单元812,用于在候选资源组中确定出目标资源组。
在一个可选的实施例中,MAC层单元812,用于在不存在候选资源组的情况下,上报第二指示信息,第二指示信息用于指示取消小数据传输;RRC层单元811,用于根据接收到的第二指示信息,取消小数据传输,触发连接建立恢复流程。
在一个可选的实施例中,RSRP包括:用于下行路损参考的RSRP。
在一个可选的实施例中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的PRACH资源中的至少一种。
在一个可选的实施例中,确定模块810包括:RRC层单元811和MAC层单元812;配置信息包括:DRB配置信息、数据量阈值和RSRP阈值;RRC层单元811,用于根据DRB配置信息、数据量阈值和RSRP阈值,确定是否触发小数据传输;RRC层单元811,用于在确定触发小数据传输的情况下,发送第三指示信息,第三指示信息用于指示执行小数据传输;MAC层单元812,用于在接收到第三指示信息的情况下,在前导码资源组中选择目标资源组。
在一个可选的实施例中,RRC层单元811,用于根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,将测量得到的RSRP与RSRP阈值进行比较;在RSRP不小于RSRP阈值的情况下,确定触发小数据传输;或,RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量不大于数据量阈值的情况下,将测量得到的RSRP与RSRP阈值进行比较;在RSRP小于RSRP阈值的情况下,确定不触发小数据传输,触发连接建立恢复流程;或,RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;在属于DRB集合的业务数据的数据量大于数据量阈值的情况下,确定不触发小数据传输,触发连接建立恢复流程;或,RRC层单元811,用于在业务数据不属于或部分不属于DRB集合的情况下,确定不触发小数据传输,触发连接建立恢复流程。
在一个可选的实施例中,N个前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,N为正整数,i为不大于N的正整数;MAC层单元812,用于将测量得到的RSRP与第iRSRP阈值进行比较;MAC层单元812,用于在第iRSRP阈值小于RSRP的情况下,将第i个前导码资源组确定为候选资源组;MAC层单元812,用于在候选资源组中确定出目标资源组。
在一个可选的实施例中,RSRP阈值大于或等于第iRSRP阈值中的最小值。
在一个可选的实施例中,RSRP包括:用于下行路损参考的RSRP。
在一个可选的实施例中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的PRACH资源中的至少一种。
在一个可选的实施例中,确定模块810包括:RRC层单元811和MAC层单元812;配置信息包括:DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值;RRC层单元811,用于根据DRB配置信息、至少一个RSRP阈值和与至少一个RSRP阈值对应的至少一个数据量阈值,确定是否触发小数据传输;RRC层单元811,用于在确定触发小数据传输的情况下,发送第四指示信息,第四指示信息用于指示执行小数据传 输;MAC层单元812,用于在接收到第四指示信息的情况下,在前导码资源组中确定目标资源组。
在一个可选的实施例中,RRC层单元811,用于根据DRB配置信息,确定DRB集合,DRB集合包括支持触发小数据传输的DRB;RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;确定目标RSRP阈值和目标数据量阈值,目标RSRP阈值是在至少一个RSRP阈值中,小于或等于终端设备测量得到的RSRP的最大值,目标数据量阈值与目标RSRP阈值对应;在属于DRB集合的业务数据的数据量不大于目标数据量阈值的情况下,确定触发小数据传输;或,RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;确定目标RSRP阈值和目标数据量阈值,目标RSRP阈值是在至少一个RSRP阈值中,小于或等于终端设备测量得到的RSRP的最大值,目标数据量阈值与目标RSRP阈值对应;在属于DRB集合的业务数据的数据量大于目标数据量阈值的情况下,确定不触发小数据传输,触发连接建立恢复流程;或,RRC层单元811,用于在全部或部分的业务数据属于DRB集合的情况下,确定属于DRB集合的业务数据的数据量;在终端设备测量得到的RSRP小于至少一个RSRP阈值中的最小值的情况下,确定不触发小数据传输,触发连接建立恢复流程;或,RRC层单元811,用于在业务数据不属于或部分不属于DRB集合的情况下,确定不触发小数据传输,触发连接建立恢复流程。
在一个可选的实施例中,目标资源组是对应于目标RSRP阈值和目标数据量阈值的前导码资源组。
在一个可选的实施例中,RSRP包括:用于下行路损参考的RSRP。
在一个可选的实施例中,前导码资源组包括:至少一个前导码和用于传输至少一个前导码的PRACH资源中的至少一种。
在一个可选的实施例中,DRB配置信息是终端设备在连接态时获取到的信息。
图9示出了本申请一个示例性实施例提供的通信设备(终端设备或网络设备)的结构示意图,该通信设备包括:处理器101、接收器102、发射器103、存储器104和总线105。
处理器101包括一个或者一个以上处理核心,处理器101通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器102和发射器103可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器104通过总线105与处理器101相连。
存储器104可用于存储至少一个指令,处理器101用于执行该至少一个指令,以实现上述方法实施例中的各个步骤。
此外,存储器104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(Electrically-Erasable Programmable Read Only Memory,EEPROM),可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EPROM),静态随时存取存储器(Static Random Access Memory,SRAM),只读存储器(Read-Only Memory,ROM),磁存储器,快闪存储器,可编程只读存储器(Programmable Read-Only Memory,PROM)。
在示例性实施例中,还提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由处理器加载并执行以实现上述各个方法实施例提供的由通信设备执行的数据传输方法。
在示例性实施例中,还提供了一种计算机程序产品或计算机程序,该计算机程序产品或计算机程序包括计算机指令,该计算机指令存储在计算机可读存储介质中,计算机设备的处理器从计算机可读存储介质读取该计算机指令,处理器执行该计算机指令,使得该计算机设备执行上述方面所述的数据传输方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本申请的可选实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (42)

  1. 一种数据传输方法,其特征在于,应用于终端设备中,所述终端设备处于非激活态,所述方法包括:
    确定配置信息,所述配置信息包括:数据信令承载DRB配置信息、数据量阈值和参考信号接收功率RSRP阈值中的至少一种;
    根据所述配置信息,确定是否触发非激活态的小数据传输;
    其中,所述DRB配置信息用于配置支持触发所述小数据传输的DRB。
  2. 根据权利要求1中所述的方法,其特征在于,
    所述配置信息包括:所述DRB配置信息和所述数据量阈值;
    或,所述配置信息包括:所述DRB配置信息、所述数据量阈值和所述RSRP阈值;
    或,所述配置信息包括:所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值。
  3. 根据权利要求2所述的方法,其特征在于,所述终端设备包括:无线资源控制RRC层和媒体接入控制MAC层;所述配置信息包括:所述DRB配置信息和所述数据量阈值;
    所述根据所述配置信息,确定是否触发非激活态的小数据传输,包括:
    所述RRC层根据所述DRB配置信息和所述数据量阈值,确定是否触发所述小数据传输;
    所述方法还包括:
    在确定触发所述小数据传输的情况下,所述RRC层发送第一指示信息,所述第一指示信息用于指示执行所述小数据传输;
    在接收到所述第一指示信息的情况下,所述MAC层在前导码资源组中选择目标资源组。
  4. 根据权利要求3所述的方法,其特征在于,所述RRC层根据所述DRB配置信息和所述数据量阈值,确定是否触发所述小数据传输,包括:
    所述RRC层根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,所述RRC层确定触发所述小数据传输;
    或,在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量大于所述数据量阈值的情况下,所述RRC层确定不触发所述小数据传输,触发连接建立恢复流程;
    或,在所述业务数据不属于或部分不属于所述DRB集合的情况下,所述RRC层确定不触发所述小数据传输,触发所述连接建立恢复流程。
  5. 根据权利要求3所述的方法,其特征在于,N个所述前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,所述N为正整数,所述i为不大于所述N的正整数;
    所述MAC层在前导码资源组中选择目标资源组,包括:
    所述MAC层将测量得到的RSRP与所述第iRSRP阈值进行比较;
    在所述第iRSRP阈值小于所述RSRP的情况下,所述MAC层将所述第i个前导码资源组确定为候选资源组;
    所述MAC层在所述候选资源组中确定出所述目标资源组。
  6. 根据权利要求5所述的方法,其特征在于,所述方法还包括:
    在不存在所述候选资源组的情况下,所述MAC层上报第二指示信息,所述第二指示信息用于指示取消所述小数据传输;
    所述RRC层根据接收到的所述第二指示信息,取消所述小数据传输,触发连接建立恢复流程。
  7. 根据权利要求5所述的方法,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  8. 根据权利要求3至7任一所述的方法,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的物理随机接入信道PRACH资源中的至少一种。
  9. 根据权利要求2所述的方法,其特征在于,所述终端设备包括:RRC层和MAC层;所述配置信息包括:所述DRB配置信息、所述数据量阈值和所述RSRP阈值;
    所述根据所述配置信息,确定是否触发非激活态的小数据传输,包括:
    所述RRC层根据所述DRB配置信息、所述数据量阈值和所述RSRP阈值,确定是否触发所述小数据传输;
    所述方法还包括:
    在确定触发所述小数据传输的情况下,所述RRC层发送第三指示信息,所述第三指示信息用于指示执行所述小数据传输;
    在接收到所述第三指示信息的情况下,所述MAC层在前导码资源组中选择目标资源组。
  10. 根据权利要求9所述的方法,其特征在于,所述RRC层根据所述DRB配置信息、所述数据量阈值和所述RSRP阈值,确定是否触发所述小数据传输,包括:
    所述RRC层根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,所述RRC层将测量得到的RSRP与所述RSRP阈值进行比较;在所述RSRP不小于所述RSRP阈值的情况下,所述RRC层确定触发所述小数据传输;
    或,在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,所述RRC层将测量得到的RSRP与所述RSRP阈值进行比较;在所述RSRP小于所述RSRP阈值的情况下,所述RRC层确定不触发所述小数据传输,触发连接建立恢复流程;
    或,在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量大于所述数据量阈值的情况下,所述RRC层确定不触发所述小数据传输,触发所述连接建立恢复流程;
    或,在所述业务数据不属于或部分不属于所述DRB集合的情况下,所述RRC层确定不触发所述小数据传输,触发所述连接建立恢复流程。
  11. 根据权利要求9所述的方法,其特征在于,N个所述前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,所述N为正整数,所述i为不大于所述N的正整数;
    所述MAC层在前导码资源组中选择目标资源组,包括:
    所述MAC层将测量得到的RSRP与所述第iRSRP阈值进行比较;
    在所述第iRSRP阈值小于所述RSRP的情况下,所述MAC层将所述第i个前导码资源组确定为候选资源组;
    所述MAC层在所述候选资源组中确定出所述目标资源组。
  12. 根据权利要求11所述的方法,其特征在于,
    所述RSRP阈值大于或等于所述第iRSRP阈值中的最小值。
  13. 根据权利要求11所述的方法,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  14. 根据权利要求9至13任一所述的方法,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的PRACH资 源中的至少一种。
  15. 根据权利要求2所述的方法,其特征在于,所述终端设备包括:RRC层和MAC层;所述配置信息包括:所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值;
    所述根据所述配置信息,确定是否触发非激活态的小数据传输,包括:
    所述RRC层根据所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值,确定是否触发所述小数据传输;
    所述方法还包括:
    在确定触发所述小数据传输的情况下,所述RRC层发送第四指示信息,所述第四指示信息用于指示执行所述小数据传输;
    在接收到所述第四指示信息的情况下,所述MAC层在前导码资源组中确定目标资源组。
  16. 根据权利要求15所述的方法,其特征在于,所述RRC层根据所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值,确定是否触发所述小数据传输,包括:
    所述RRC层根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;所述RRC层确定目标RSRP阈值和目标数据量阈值,所述目标RSRP阈值是在所述至少一个所述RSRP阈值中,小于或等于所述终端设备测量得到的RSRP的最大值,所述目标数据量阈值与所述目标RSRP阈值对应;在所述属于所述DRB集合的业务数据的数据量不大于所述目标数据量阈值的情况下,所述RRC层确定触发所述小数据传输;
    或,在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;所述RRC层确定目标RSRP阈值和目标数据量阈值,所述目标RSRP阈值是在所述至少一个所述RSRP阈值中,小于或等于所述终端设备测量得到的RSRP的最大值,所述目标数据量阈值与所述目标RSRP阈值对应;在所述属于所述DRB集合的业务数据的数据量大于所述目标数据量阈值的情况下,所述RRC层确定不触发所述小数据传输,触发连接建立恢复流程;
    或,在全部或部分的业务数据属于所述DRB集合的情况下,所述RRC层确定属于所述DRB集合的业务数据的数据量;在所述终端设备测量得到的RSRP小于所述至少一个所述RSRP阈值中的最小值的情况下,所述RRC层确定不触发所述小数据传输,触发所述连接建立恢复流程;
    或,
    在所述业务数据不属于或部分不属于所述DRB集合的情况下,所述RRC层确定不触发所述小数据传输,触发所述连接建立恢复流程。
  17. 根据权利要求16所述的方法,其特征在于,
    所述目标资源组是对应于所述目标RSRP阈值和所述目标数据量阈值的前导码资源组。
  18. 根据权利要求16所述的方法,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  19. 根据权利要求15至18任一所述的方法,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的PRACH资源中的至少一种。
  20. 根据权利要求1至19任一所述的方法,其特征在于,
    所述DRB配置信息是所述终端设备在连接态时获取到的信息。
  21. 一种数据传输装置,其特征在于,所述装置包括:确定模块;
    所述确定模块,用于确定配置信息,所述配置信息包括:数据信令承载DRB配置信息、数据量阈值和参考信号接收功率RSRP阈值中的至少一种;
    所述确定模块,用于根据所述配置信息,确定是否触发非激活态的小数据传输;
    其中,所述DRB配置信息用于配置支持触发所述小数据传输的DRB。
  22. 根据权利要求21中所述的装置,其特征在于,
    所述配置信息包括:所述DRB配置信息和所述数据量阈值;
    或,所述配置信息包括:所述DRB配置信息、所述数据量阈值和所述RSRP阈值;
    或,所述配置信息包括:所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值。
  23. 根据权利要求22所述的装置,其特征在于,所述确定模块包括:无线资源控制RRC层单元和媒体接入控制MAC层单元;所述配置信息包括:所述DRB配置信息和所述数据量阈值;
    所述RRC层单元,用于根据所述DRB配置信息和所述数据量阈值,确定是否触发所述小数据传输;
    所述RRC层单元,用于在确定触发所述小数据传输的情况下,发送第一指示信息,所述第一指示信息用于指示执行所述小数据传输;
    所述MAC层单元,用于在接收到所述第一指示信息的情况下,在前导码资源组中选择目标资源组。
  24. 根据权利要求23所述的装置,其特征在于,
    所述RRC层单元,用于根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,确定触发所述小数据传输;
    或,所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量大于所述数据量阈值的情况下,确定不触发所述小数据传输,触发连接建立恢复流程;
    或,所述RRC层单元,用于在所述业务数据不属于或部分不属于所述DRB集合的情况下,确定不触发所述小数据传输,触发所述连接建立恢复流程。
  25. 根据权利要求23所述的装置,其特征在于,N个所述前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,所述N为正整数,所述i为不大于所述N的正整数;
    所述MAC层单元,用于将测量得到的RSRP与所述第iRSRP阈值进行比较;
    所述MAC层单元,用于在所述第iRSRP阈值小于所述RSRP的情况下,将所述第i个前导码资源组确定为候选资源组;
    所述MAC层单元,用于在所述候选资源组中确定出所述目标资源组。
  26. 根据权利要求25所述的装置,其特征在于,
    所述MAC层单元,用于在不存在所述候选资源组的情况下,上报第二指示信息,所述第二指示信息用于指示取消所述小数据传输;
    所述RRC层单元,用于根据接收到的所述第二指示信息,取消所述小数据传输,触发连接建立恢复流程。
  27. 根据权利要求25所述的装置,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  28. 根据权利要求23至27任一所述的装置,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的物理随机接入信道PRACH资源中的至少一种。
  29. 根据权利要求22所述的装置,其特征在于,所述确定模块包括:RRC层单元和MAC层单元;所述配置信息包括:所述DRB配置信息、所述数据量阈值和所述RSRP阈值;
    所述RRC层单元,用于根据所述DRB配置信息、所述数据量阈值和所述RSRP阈值,确定是否触发所述小数据传输;
    所述RRC层单元,用于在确定触发所述小数据传输的情况下,发送第三指示信息,所述第三指示信息用于指示执行所述小数据传输;
    所述MAC层单元,用于在接收到所述第三指示信息的情况下,在前导码资源组中选择目标资源组。
  30. 根据权利要求29所述的装置,其特征在于,
    所述RRC层单元,用于根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,将测量得到的RSRP与所述RSRP阈值进行比较;在所述RSRP不小于所述RSRP阈值的情况下,确定触发所述小数据传输;
    或,所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量不大于所述数据量阈值的情况下,将测量得到的RSRP与所述RSRP阈值进行比较;在所述RSRP小于所述RSRP阈值的情况下,确定不触发所述小数据传输,触发连接建立恢复流程;
    或,所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在属于所述DRB集合的业务数据的数据量大于所述数据量阈值的情况下,确定不触发所述小数据传输,触发所述连接建立恢复流程;
    或,所述RRC层单元,用于在所述业务数据不属于或部分不属于所述DRB集合的情况下,确定不触发所述小数据传输,触发所述连接建立恢复流程。
  31. 根据权利要求29所述的装置,其特征在于,N个所述前导码资源组中的第i个前导码资源组对应于第iRSRP阈值,所述N为正整数,所述i为不大于所述N的正整数;
    所述MAC层单元,用于将测量得到的RSRP与所述第iRSRP阈值进行比较;
    所述MAC层单元,用于在所述第iRSRP阈值小于所述RSRP的情况下,将所述第i个前导码资源组确定为候选资源组;
    所述MAC层单元,用于在所述候选资源组中确定出所述目标资源组。
  32. 根据权利要求31所述的装置,其特征在于,
    所述RSRP阈值大于或等于所述第iRSRP阈值中的最小值。
  33. 根据权利要求31所述的装置,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  34. 根据权利要求29至33任一所述的装置,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的PRACH资源中的至少一种。
  35. 根据权利要求22所述的装置,其特征在于,所述确定模块包括:RRC层单元和MAC层单元;所述配置信息包括:所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值;
    所述RRC层单元,用于根据所述DRB配置信息、至少一个所述RSRP阈值和与所述至少一个所述RSRP阈值对应的至少一个所述数据量阈值,确定是否触发所述小数据传输;
    所述RRC层单元,用于在确定触发所述小数据传输的情况下,发送第四指示信息,所述第四指示信息用于指示执行所述小数据传输;
    所述MAC层单元,用于在接收到所述第四指示信息的情况下,在前导码资源组中确定 目标资源组。
  36. 根据权利要求35所述的装置,其特征在于,
    所述RRC层单元,用于根据所述DRB配置信息,确定DRB集合,所述DRB集合包括支持触发所述小数据传输的DRB;
    所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;确定目标RSRP阈值和目标数据量阈值,所述目标RSRP阈值是在所述至少一个所述RSRP阈值中,小于或等于所述终端设备测量得到的RSRP的最大值,所述目标数据量阈值与所述目标RSRP阈值对应;在所述属于所述DRB集合的业务数据的数据量不大于所述目标数据量阈值的情况下,确定触发所述小数据传输;
    或,所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;确定目标RSRP阈值和目标数据量阈值,所述目标RSRP阈值是在所述至少一个所述RSRP阈值中,小于或等于所述终端设备测量得到的RSRP的最大值,所述目标数据量阈值与所述目标RSRP阈值对应;在所述属于所述DRB集合的业务数据的数据量大于所述目标数据量阈值的情况下,确定不触发所述小数据传输,触发连接建立恢复流程;
    或,所述RRC层单元,用于在全部或部分的业务数据属于所述DRB集合的情况下,确定属于所述DRB集合的业务数据的数据量;在所述终端设备测量得到的RSRP小于所述至少一个所述RSRP阈值中的最小值的情况下,确定不触发所述小数据传输,触发所述连接建立恢复流程;
    或,所述RRC层单元,用于在所述业务数据不属于或部分不属于所述DRB集合的情况下,确定不触发所述小数据传输,触发所述连接建立恢复流程。
  37. 根据权利要求36所述的装置,其特征在于,
    所述目标资源组是对应于所述目标RSRP阈值和所述目标数据量阈值的前导码资源组。
  38. 根据权利要求36所述的装置,其特征在于,所述RSRP包括:用于下行路损参考的RSRP。
  39. 根据权利要求35至38任一所述的装置,其特征在于,
    所述前导码资源组包括:至少一个前导码和用于传输所述至少一个前导码的PRACH资源中的至少一种。
  40. 根据权利要求21至39任一所述的装置,其特征在于,
    所述DRB配置信息是所述终端设备在连接态时获取到的信息。
  41. 一种终端设备,其特征在于,所述终端设备包括:
    处理器;
    与所述处理器相连的收发器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至20任一所述的数据传输方法。
  42. 一种计算机可读存储介质,其特征在于,所述可读存储介质中存储有可执行指令,所述可执行指令由处理器加载并执行以实现如权利要求1至20任一所述的数据传输方法。
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