WO2024022418A1 - 数据传输方法及装置、计算机可读存储介质、终端 - Google Patents

数据传输方法及装置、计算机可读存储介质、终端 Download PDF

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Publication number
WO2024022418A1
WO2024022418A1 PCT/CN2023/109476 CN2023109476W WO2024022418A1 WO 2024022418 A1 WO2024022418 A1 WO 2024022418A1 CN 2023109476 W CN2023109476 W CN 2023109476W WO 2024022418 A1 WO2024022418 A1 WO 2024022418A1
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Prior art keywords
sdt
network
threshold value
data transmission
triggered
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PCT/CN2023/109476
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English (en)
French (fr)
Inventor
邓云
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展讯通信（上海）有限公司
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Publication of WO2024022418A1 publication Critical patent/WO2024022418A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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

Definitions

  • the present application relates to the field of communication technology, and in particular, to a data transmission method and device, a computer-readable storage medium, and a terminal.
  • a user equipment when a user equipment (UE) has business needs, it will access the network to establish a Radio Resource Control (RRC) connection and establish a dedicated bearer for transmission. data.
  • RRC Radio Resource Control
  • the base station After the UE enters the connected state, the base station will allocate necessary parameters to the UE, such as security algorithm related parameters, data link layer (Layer 2, referred to as L2) related configuration parameters, physical layer (Layer 1, referred to as L1) related parameters Configuration parameters and network layer (Layer 3, referred to as L3) related configuration parameters, etc.
  • L2 data link layer
  • L1 physical layer
  • L3 network layer
  • the base station When the UE enters the idle state from the connected state, the base station will release all parameters of the UE, that is, release the context of the UE. If the UE expects to establish services again, the base station needs to reconfigure the above parameters for the UE. This process will be completed through multiple air interface signaling and S1 interface signaling.
  • UEs In actual applications, different UEs have different business requirements. For example, some UEs will transmit data multiple times within a period of time, and the time for each data transmission is limited. for this According to business requirements, if the existing mechanism is used, a connection needs to be established every time data is transmitted, and the connection is released after the data transmission is completed. When the UE repeats multiple transmissions, a large number of signaling interactions will occur, which will lead to excessive network signaling load and greatly reduce the efficiency of data transmission.
  • the protocol version 15 (Release15, referred to as R15) of the fifth generation (5th-generation, referred to as 5G) introduced the inactive state (Inactive).
  • R15 the protocol version 15
  • 5G the fifth generation
  • the network retains the configuration of the RRC connection established for the UE, the bearer configuration, the security-related configuration, and the parameter configuration of the S1 interface related to the UE.
  • the UE also needs to save the RRC connection configuration, Bearer configuration, security configuration, etc.
  • the UE entering the inactive state has data transmission, it can use the saved parameter configuration to quickly access the network. Specifically, the UE restores the RRC connection through the RRC connection recovery process, and then performs data transmission. Because both the UE and the network have the RRC connection parameters of the UE, the UE can quickly access the network to transmit data without having to establish RRC first as before. Connect, establish the bearer and then transmit the data, thus saving a lot of signaling.
  • protocol version 17 (Release15, referred to as R17) introduced the Small Data Transmission (SDT) mechanism.
  • SDT Small Data Transmission
  • the technical purpose of this application is to provide a more flexible small data transmission solution.
  • embodiments of the present application provide a data transmission method.
  • the method is applied in a terminal and includes: in an inactive state, according to the amount of data to be transmitted, determining the transmission conditions and/or Modulation and coding strategy MCS, the transmission conditions are used to determine whether to perform small data transmission SDT; when the transmission conditions are met, SDT is performed.
  • the method before determining the transmission conditions and/or the modulation and coding strategy MCS according to the amount of data to be transmitted, the method further includes: receiving a paging message, the paging message instructing the terminal to initiate a small data transmission mechanism.
  • determining the transmission conditions and/or modulation coding strategy MCS according to the amount of data to be transmitted includes: if the amount of data to be transmitted is greater than a first preset threshold, the first transmission condition is adopted; otherwise, the second transmission condition is adopted.
  • the signal quality of the serving cell is characterized by reference signal received power RSRP.
  • determining the transmission conditions and/or modulation coding strategy MCS according to the amount of data to be transmitted includes: if the amount of data to be transmitted is greater than the first preset threshold, use the first MCS; otherwise, use the second MCS , wherein the modulation order of the first MCS is greater than the modulation order of the second MCS.
  • the method before performing SDT, the method further includes: determining a method of SDT, where the method of SDT is: an SDT mechanism based on configuration authorization, or an SDT mechanism based on random access.
  • embodiments of the present application provide a data transmission method.
  • the method is applied to a network device and includes: sending configuration information.
  • the configuration information includes: a signal quality gate corresponding to the network-triggered small data transmission mechanism SDT. limit, and/or, the modulation and coding strategy MCS corresponding to the network-triggered SDT; wherein the signal quality threshold value corresponding to the network-triggered SDT is used by the terminal to determine whether to initiate SDT triggered by the network, and the network-triggered SDT
  • the MCS corresponding to the SDT is the MCS used when the terminal initiates SDT triggered by the network.
  • the first threshold value is greater than the second threshold value; wherein, the first threshold value is The threshold value of the signal quality corresponding to SDT that is not triggered by the network, and the second threshold value is the threshold value of the signal quality corresponding to the SDT triggered by the network.
  • the signal quality of the serving cell is characterized by reference signal received power RSRP.
  • the modulation order of the first MCS is greater than the modulation order of the second MCS; wherein, the first MCS is the MCS used when the terminal initiates SDT not triggered by the network, and the second MCS is the The MCS corresponding to the network-triggered SDT.
  • embodiments of the present application also provide a data transmission device, which includes: a condition determination module configured to determine transmission conditions and/or modulation coding strategy MCS according to the amount of data to be transmitted in an inactive state. , the transmission condition is used to determine whether to perform small data transmission SDT; the transmission module is used to perform SDT when the transmission condition is met.
  • embodiments of the present application also provide a data transmission device, which includes: a configuration module for sending configuration information, a threshold value of signal quality corresponding to the network-triggered small data transmission mechanism SDT, and/or , the modulation and coding strategy MCS corresponding to the network-triggered SDT; wherein, the signal quality threshold value corresponding to the network-triggered SDT is used by the terminal to determine whether to initiate SDT triggered by the network, and the MCS corresponding to the network-triggered SDT is The MCS used when the terminal initiates SDT triggered by the network.
  • embodiments of the present application provide a computer-readable storage medium on which a computer program is stored.
  • the computer program is run by a processor, the data transmission method provided in any of the above aspects is executed.
  • embodiments of the present application provide a terminal, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor runs the computer program, it executes a first step. Provides steps for data transfer methods.
  • an embodiment of the present application provides a network device, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor runs the computer program, it executes the first step.
  • the data transmission methods provided by the two aspects step.
  • embodiments of the present application provide a data transmission method.
  • the method is applied in a terminal and includes: receiving a paging message in an inactive state; if the amount of data to be transmitted is less than or equal to a first preset threshold, SDT is initiated when the signal quality of the serving cell is greater than or equal to the second threshold value, or the signal quality of the serving cell is ignored when determining whether to initiate SDT.
  • the RRC recovery process is initiated.
  • the data to be transmitted refers to other data to be sent except the RRC recovery request message.
  • the first preset threshold is 0.
  • initiating SDT when the signal quality of the serving cell is greater than or equal to the second threshold value includes: using a second MCS to initiate SDT based on configuration authorization, and the modulation order of the second MCS is smaller than that of the first MCS.
  • Modulation order, the first MCS refers to the MCS adopted when initiating SDT based on configuration authorization when the amount of data to be transmitted is greater than the second preset threshold.
  • embodiments of the present application provide a data transmission device.
  • the device includes: receiving a paging message in an inactive state, and if the amount of data to be transmitted is less than or equal to a first preset threshold, the signal in the serving cell If the quality is greater than or equal to the second threshold value, SDT is initiated, or the signal quality of the serving cell is ignored when determining whether to initiate SDT.
  • the transmission conditions and/or the modulation and coding strategy MCS are determined according to the amount of data to be transmitted.
  • the transmission conditions are used to determine whether to perform small data transmission SDT; In case of transmission conditions, SDT is performed.
  • the transmission conditions used to determine whether to perform SDT and the MCS for SDT can be flexibly selected based on the amount of data to be transmitted, which is beneficial to increasing the possibility and accuracy of small data transmission in the inactive state.
  • a lower threshold is used. The value is used to judge the signal quality of the serving cell, thereby increasing the probability of applying SDT in the inactive state.
  • the probability of data transmission after the terminal enters the connected state from the inactive state is reduced. Since there is no need to establish an RRC connection, it is beneficial to reduce signaling overhead.
  • low-level MCS when the amount of data to be transmitted is small (for example, less than or equal to the first preset threshold), low-level MCS can be used to effectively transmit the data to be transmitted. It is beneficial to improve the anti-interference performance of SDT and reduce the bit error rate, so that the network can accurately receive the information sent by the terminal.
  • Figure 1 is a schematic flow chart of a data transmission method in an embodiment of the present application
  • Figure 2 is a schematic flow chart of another data transmission method in an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of a data transmission device in an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of another data transmission device in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another data transmission device in an embodiment of the present application.
  • the UE when preset conditions are met, the UE can send a small amount of uplink data to the network in the inactive state.
  • terminals strictly use preset conditions when determining whether to initiate SDT, and SDT has poor flexibility.
  • embodiments of the present application provide a data transmission method.
  • the transmission conditions and/or the modulation and coding strategy MCS are determined according to the amount of data to be transmitted. Conditions are used to determine whether to perform small data transmission SDT; perform SDT if the transmission conditions are met.
  • the transmission conditions used to determine whether to perform SDT and the MCS for SDT can be flexibly selected based on the amount of data to be transmitted, which is beneficial to increasing the possibility and accuracy of small data transmission in the inactive state.
  • the communication systems applicable to the embodiments of this application include but are not limited to third-generation systems (3th-generation, 3G for short), long-term evolution (long term evolution, LTE for short) systems, and fourth-generation systems (4th-generation systems). , referred to as 4G), fifth-generation (5th-generation, referred to as 5G) system, New Radio (New Radio, referred to as NR) system, as well as future evolution systems or multiple communication integration systems.
  • the 5G system may be a non-standalone (NSA) 5G system or a standalone (SA) 5G system.
  • SA standalone
  • the solutions of the embodiments of this application can also be applied to various new communication systems in the future, such as 6G, 7G, etc.
  • the terminal in the embodiment of this application may refer to various forms of user equipment (User Equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station (Mobile Station, MS for short), remote station, remote Terminal, mobile device, user terminal, terminal equipment (Terminal Equipment), wireless communication equipment, user agent or user device.
  • User Equipment User Equipment
  • the terminal can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminals in future 5G networks or future evolved Public Land Mobile Networks (PLMN)
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminals in future 5G networks or future evolved Public Land Mobile Networks (PLMN)
  • PLMN Public Land Mobile Networks
  • the network device in the embodiment of the present application may also be called an access network device.
  • it may be a base station (BS) (also called a base station device).
  • the network device is a device deployed on a wireless access network (BS).
  • Radio Access Network (RAN) is a device used to provide wireless communication functions.
  • equipment that provides base station functions in 2nd-generation (2G) networks includes base transceiver stations (base transceiver stations). BTS for short), the equipment that provides base station functions in the third generation (3rd-generation, 3G) network includes Node B, and the equipment that provides base station functions in the fourth generation (4th-generation, 4G) network includes Evolved NodeB (eNB for short).
  • the device that provides base station functions is the access point (AP for short).
  • the device that provides base station functions is The equipment of next generation node base station (gNB), and the node B (ng-eNB) that continues to evolve, in which NR technology is used to communicate between gNB and terminal equipment, and between ng-eNB and terminal equipment Using Evolved Universal Terrestrial Radio Access (E-UTRA) technology for communication, both gNB and ng-eNB can be connected to the 5G core network.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • the network equipment in the embodiment of the present application also includes equipment that provides base station functions in new communication systems in the future.
  • Figure 1 is a schematic flow chart of a data transmission method in an embodiment of the present application.
  • the method shown in Figure 1 may be performed by a terminal (or may also be referred to as a "UE").
  • the method shown in Figure 1 can be applied in a scenario where the terminal actively initiates SDT, or in a scenario where the network triggers the terminal to initiate SDT.
  • the data transmission method shown in Figure 1 may include:
  • Step S11 In the inactive state, determine the transmission conditions and/or the modulation and coding strategy MCS according to the amount of data to be transmitted.
  • the transmission conditions are used to determine whether to perform small data transmission SDT;
  • Step S12 If the transmission conditions are met, perform SDT.
  • the terminal determines the transmission conditions and/or modulation and coding strategy (Modulation and Coding Scheme, MCS for short) based on the amount of data to be transmitted.
  • modulation and coding strategy Modulation and Coding Scheme, MCS for short
  • the data to be transmitted refers to the uplink data sent by the terminal to the network
  • the amount of data to be transmitted may refer to the amount of data to be transmitted.
  • the data to be transmitted may include signaling as well as other types of data in addition to signaling.
  • the terminal in the inactive state, can transmit positioning information, and the positioning information can be transmitted using the solution provided by the embodiment of the present application.
  • the "data to be transmitted” referred to in the embodiment of this application does not include data sent by the terminal during the process of establishing an RRC connection. More specifically, the data to be transmitted may refer to data to be transmitted except the RRC recovery request message.
  • the first preset threshold may be predefined by a protocol or preconfigured by the network.
  • the first preset threshold is 0.
  • the first transmission condition may be adopted. In other words, when the amount of data to be transmitted is greater than the first preset threshold, the first transmission condition is used to determine whether to perform SDT.
  • the first transmission condition includes: the signal quality of the serving cell is greater than or equal to the first threshold value.
  • the signal quality may refer to Reference Signal Receiving Power (RSRP for short), and accordingly, the first threshold value is a first RSRP threshold value. That is, the signal quality can be characterized by RSRP.
  • the first transmission condition may include: the RSRP of the serving cell is greater than or equal to the first RSRP threshold.
  • the signal quality can also be characterized by other existing parameters, and the first threshold value corresponds to the parameter characterizing the signal quality, which is not limited in the embodiments of the present application. Wherein, the signal quality can be determined by terminal measurement.
  • the first transmission condition may also include any one or more of the following: the amount of data to be transmitted is less than or equal to the second preset threshold, and the data to be transmitted belongs to a wireless bearer to which SDT is applicable.
  • the terminal may initiate an RRC recovery process and transmit the data to be transmitted after the RRC connection. That is, when the amount of data to be transmitted is greater than the second preset threshold, SDT is not applicable. Therefore, the terminal enters the connected state from the inactive state by restoring the RRC connection, and then enters the connected state. The data to be transmitted is then sent. It can be understood that the data transmission performed in the connected state is not what is called SDT in the embodiment of this application.
  • the first preset threshold is smaller than the second preset threshold, and the second preset threshold may be predefined by a protocol or preconfigured by the network.
  • a data wireless bearer that can apply the SDT mechanism that is, a wireless bearer that can transmit small data in an inactive state or a wireless bearer that can transmit small data in an inactive state.
  • the data wireless bearer that can apply the SDT mechanism
  • the data to be transmitted belongs to a wireless bearer for which SDT is applicable, the data can be transmitted through the SDT mechanism; if the data to be transmitted does not belong to a wireless bearer for which SDT is applicable, SDT cannot be used for data transmission, and the terminal needs to initiate a random access. , and then perform data transmission after establishing the RRC connection.
  • step S11 before performing step S11, it may also be determined whether the amount of data to be transmitted is greater than the second preset threshold. If so, step S11 may be continued. Otherwise, the RRC recovery process is initiated, and after the RRC connection Transfer the data to be transferred. It can be understood that in this case, it is no longer necessary to determine whether the amount of data to be transmitted is greater than the second preset threshold when performing step S11.
  • the second transmission condition is adopted. In other words, when the amount of data to be transmitted is less than or equal to the first preset threshold, the second transmission condition is used to determine whether to perform SDT.
  • the second transmission condition includes: the signal quality of the serving cell is greater than or equal to the second threshold. Wherein, the second threshold value is smaller than the first threshold value. It should be noted that the parameters used to characterize the signal quality in the second transmission condition are the same as the parameters used to characterize the signal quality in the first transmission condition.
  • the second transmission condition may include: the RSRP of the serving cell is greater than or equal to the second RSRP threshold, and the second RSRP threshold is less than the first RSRP threshold.
  • the second transmission condition ignores the signal quality of the serving cell.
  • the second transmission condition does not include "the signal quality of the serving cell is greater than or equal to the threshold value". That is, the second transmission condition is not configured to determine the signal quality of the serving cell.
  • the threshold value for judgment. That is, when the terminal applies the second transmission condition to determine whether to initiate SDT, it does not determine whether the signal quality of the serving cell is greater than or equal to a certain threshold value. Therefore, the terminal does not need to measure the signal quality of the serving cell.
  • the second transmission condition may only include: the data to be transmitted belongs to a radio bearer to which SDT is applicable. That is, the second transmission condition may not include: the amount of data to be transmitted is less than or equal to the second preset threshold. This is because the first preset threshold is less than the second preset threshold. When the second transmission condition is applied for judgment, The amount of data to be transmitted must be less than the second preset threshold.
  • the signal quality of the serving cell can be ignored. If the amount of data to be transmitted is less than or equal to the first preset threshold and the amount of data to be transmitted is not 0, the second threshold value may be used to determine the signal quality of the serving cell.
  • the solution in the existing technology strictly applies a single threshold value.
  • the amount of data to be transmitted is small (for example, less than or equal to the first preset threshold)
  • the signal quality of the serving cell does not meet the preset conditions, it cannot be performed in the inactive state.
  • Transmission in this case the terminal will enter the connected state from the inactive state, and transmit the data to be transmitted in the connected state.
  • different signal quality thresholds are applied to determine whether to initiate SDT according to the amount of data to be transmitted.
  • a lower threshold can be used to judge the signal quality of the serving cell. , thereby increasing the probability of applying SDT in the inactive state.
  • the probability of data transmission after the terminal enters the connected state from the inactive state is reduced. Since there is no need to establish an RRC connection, it is beneficial to reduce signaling overhead.
  • the MCS can also be determined based on the amount of data to be transmitted. More specifically, in the case of using the SDT mechanism based on configuration authorization, the MCS can be determined based on the amount of data to be transmitted. The specific content of the SDT mechanism based on configuration authorization will be described in detail below and will not be repeated here.
  • the first MCS can be determined as the MCS used when performing SDT, and if the amount of data to be transmitted is less than or equal to the second preset threshold , then the second MCS can be used as the MCS used when performing SDT.
  • the modulation order of the first MCS is greater than the modulation order of the second MCS.
  • both the first MCS and the second MCS are predefined by the protocol, or may be preconfigured by the network.
  • low-level MCS when the amount of data to be transmitted is small (for example, less than or equal to the first preset threshold), low-level MCS can be used to effectively transmit the data to be transmitted. In this case, there is It is beneficial to improve the anti-interference performance of SDT and reduce the bit error rate, so that the network can accurately receive the information sent by the terminal.
  • step S12 it may first be determined whether the transmission condition determined in step S11 is met.
  • Case 1 The amount of data to be transmitted is greater than the first preset threshold, and the transmission condition is the above-mentioned first transmission condition.
  • the terminal measures the signal quality of the serving cell. If the terminal measures that the signal quality of the serving cell is greater than or equal to the first threshold, it can be determined that the signal quality of the serving cell meets the transmission requirements of SDT.
  • the terminal determines that the limitations of other conditions in the first transmission condition are also met (for example, the amount of data to be transmitted is less than or equal to the second preset threshold, and the data to be transmitted belongs to a wireless bearer to which SDT is applicable), it can determine The first transmission condition is met.
  • Case 2 The amount of data to be transmitted is less than or equal to the first preset threshold, and the transmission condition is the above-mentioned second transmission condition.
  • the terminal measures the signal quality of the serving cell. If the terminal measures that the signal quality of the serving cell is greater than or equal to the second threshold, it can be determined that the signal quality of the serving cell meets the transmission requirements of SDT. .
  • the terminal when the amount of data to be transmitted is less than the first preset threshold, the terminal directly determines that the signal quality of the serving cell meets the transmission requirements of SDT. That is, when the amount of data to be transmitted is less than or equal to the first preset threshold, the signal quality of the serving cell is not measured.
  • the terminal determines that the definition of other conditions in the second transmission condition is also met (for example, the data to be transmitted belongs to a radio bearer to which SDT is applicable), it may determine that the second transmission condition is met.
  • the RRC recovery process can be initiated and transmitted after the RRC connection Data to be transferred.
  • the terminal enters the connected state from the inactive state by restoring the RRC connection, and sends the data to be transmitted after entering the connected state.
  • SDT can be performed.
  • the MCS used in the SDT process may also be determined based on the amount of data to be transmitted. More specifically, as mentioned above, if the amount of data to be transmitted is greater than the first preset threshold, the first MCS can be used to perform SDT. If the amount of data to be transmitted is less than or equal to the second preset threshold, the first MCS can be used. Two MCS performed SDT. Wherein, the modulation order of the first MCS is greater than the modulation order of the second MCS.
  • Adopting such a solution and using low-order MCS can help reduce the bit error rate and improve the accuracy of data transmission when the amount of data to be transmitted is small.
  • the SDT method before performing SDT, can be determined first, and the SDT method can be any of the following: based on configuration authorization (Configured Grant's SDT mechanism (CG-SDT for short), and the SDT mechanism based on Random Access (RA-SDT for short).
  • configuration authorization Configured Grant's SDT mechanism (CG-SDT for short)
  • RA-SDT Random Access
  • the SDT mechanism based on configuration authorization can mean that the network device (such as a base station) configures authorized transmission resources for the terminal when it transfers the terminal to the inactive state. In the inactive state, when the terminal has SDT needs, it can use Authorized transmission resources are used for transmission.
  • the network device such as a base station
  • the network can pre-configure time-frequency resources for uplink transmission for the terminal. For example, it can be configured through the Radio Resource Control Uplink Grant (RRC Configured Uplink Grant) parameters.
  • RRC Configured Uplink Grant Radio Resource Control Uplink Grant
  • the RRC uplink grant parameters may include: frequency domain resource distribution (frequency Domain Allocation) and modulation and coding mechanism parameters.
  • the modulation and coding mechanism parameters can generally be expressed as mcsAndTBS.
  • the modulation and coding mechanism parameters can be used to indicate the modulation order of the MCS used by SDT, and can also be used to indicate the target code rate (Target Code Rate) and the transmission data block size (Transport Block Size, referred to as TBS).
  • TBS Transmission Block Size
  • the SDT mechanism based on random access may refer to: transmitting small data during the process of random access, that is, transmitting small data at the same time as random access.
  • the terminal can send message 3 (MSG3) and small data at the same time in step 3. If the base station successfully receives it, it can directly release the terminal in step 4, thereby realizing the inactive state. Transfer small data.
  • the terminal may first determine whether to perform CG-SDT. Specifically, the terminal can determine whether preset application conditions are met, and the application conditions are used to determine whether CG-SDT can be performed. More specifically, the application conditions may include: the uplink timing advance (Uplink Timing Advance) is greater than or equal to the preset value.
  • Uplink Timing Advance Uplink Timing Advance
  • the terminal can initiate CG-SDT.
  • the first MCS When the terminal performs CG-SDT, if the amount of data to be transmitted is greater than the first preset threshold, the first MCS can be used. If the amount of data to be transmitted is less than or equal to the first preset threshold, If the threshold is set, the second MCS can be used.
  • the second MCS may be pre-configured by the network device. For example, it can be configured through modulation and coding mechanism parameters. Compared with using the first MCS, the modulation order and code rate will be reduced when using the second MCS.
  • the terminal can initiate RA-SDT.
  • the terminal may send the data to be transmitted when sending message 3 (MSG3).
  • SMSG3 sending message 3
  • the transmission conditions for judging whether to perform SDT and the MCS for performing SDT are flexibly selected according to the amount of data to be transmitted, which is beneficial to increasing the possibility of small data transmission in the inactive state. and accuracy.
  • Figure 2 is a schematic flow chart of another data transmission method in an embodiment of the present application.
  • Figure 2 can be applied to the scenario where the network triggers the terminal to perform SDT.
  • R17 currently only considers the scenario where the terminal actively initiates SDT, that is, the terminal only actively initiates SDT when there is uplink data transmission.
  • the network triggers the terminal to initiate small data transmission.
  • the SDT initiated by the network-triggered terminal may be recorded as MT-SDT.
  • the serving cell receives the downlink data packet delivered by the core network. Since the downlink data packet has a small number of bits, the serving cell expects to try to use MT-SDT to send the downlink data packet to the terminal. Since the terminal can periodically receive paging messages in the inactive state, the serving cell can trigger the terminal to perform small data transmission in the inactive state through paging messages to avoid transitioning to the connected state, which causes a large amount of signaling overhead.
  • the network triggering the terminal to initiate SDT may mean that the network triggers the terminal to initiate SDT to receive downlink data sent by the network.
  • the terminal may not send data other than the RRC recovery request.
  • the network triggering the terminal to initiate SDT may also mean that the network triggers the terminal to send uplink data, which is not limited in this embodiment.
  • the method shown in Figure 2 may include:
  • Step S21 Receive the paging message in the inactive state
  • Step S22 If the amount of data to be transmitted is less than or equal to the first preset threshold, initiate SDT when the signal quality of the serving cell is greater than or equal to the second threshold, or ignore the signal quality of the serving cell when determining whether to initiate SDT. Signal quality.
  • the network device may send configuration information to the terminal, and the configuration information may include: the second threshold value and/or the second MCS.
  • the second threshold value may refer to the signal quality threshold value corresponding to the network-triggered SDT, and the signal quality threshold value corresponding to the network-triggered SDT may be used for The terminal determines whether to initiate SDT triggered by the network. That is, the second threshold value can be used by the terminal to determine whether to initiate SDT triggered by the network.
  • the second threshold value may refer to the MCS corresponding to the network-triggered SDT, and the MCS corresponding to the network-triggered SDT refers to the MCS adopted when the terminal initiates the network-triggered SDT.
  • the terminal may also be pre-configured with the first threshold value and/or the first MCS.
  • the first threshold value may refer to the threshold value of the signal quality corresponding to the SDT not triggered by the network.
  • the threshold value of the signal quality corresponding to the SDT not triggered by the network may be used by the terminal to determine whether to initiate a signal quality not triggered by the network.
  • Network triggered SDT That is, the first threshold value can be used by the terminal to determine whether to initiate SDT that is not triggered by the network.
  • the first MCS may refer to the MCS corresponding to the SDT not triggered by the network, and the MCS corresponding to the SDT not triggered by the network refers to the MCS adopted when the terminal initiates the SDT not triggered by the network.
  • the first threshold value may refer to the first RSRP threshold value
  • the second threshold value may refer to the second RSRP threshold value
  • the second RSRP threshold value is less than the first RSRP threshold
  • the terminal can receive paging messages in the inactive state.
  • the paging message may be sent by a network device (such as a base station), and the paging message may be used to instruct the terminal to initiate SDT. That is, the network device can trigger the terminal to initiate SDT through a paging message.
  • the paging message may include indication information, the indication information being used to instruct the terminal to initiate SDT.
  • the terminal can determine that the network device triggers the terminal to initiate SDT, and the terminal can further determine whether to initiate SDT.
  • the first transmission condition may be used to determine whether to initiate SDT. If the terminal determines that the amount of data to be transmitted is less than or equal to the first preset threshold, the above-mentioned second transmission condition may be used to determine whether to initiate SDT.
  • the first preset threshold may be predefined by a protocol or preconfigured by the network. More specifically, in the case where the network triggers the terminal to initiate SDT to receive downlink data, the first preset threshold may be 0.
  • SDT is initiated when the signal quality of the serving cell is greater than or equal to the second threshold, or the serving cell is ignored when determining whether to initiate SDT. signal quality.
  • the terminal when the amount of data to be transmitted is less than or equal to the first preset threshold, if the signal quality of the serving cell is less than the second threshold, the terminal initiates the RRC recovery process and sends the data to be transmitted in the connected state. data.
  • the terminal when performing SDT, if the SDT mechanism based on configuration authorization is used, when the amount of data to be transmitted is less than or equal to the first preset threshold, the terminal can use the second MCS to perform SDT; when the amount of data to be transmitted is is greater than the first preset threshold, the terminal may use the first MCS to perform SDT, where the modulation order of the second MCS is smaller than the modulation order of the first MCS.
  • the terminal by relaxing the transmission conditions, the terminal can apply MT-SDT more widely and prevent the terminal from entering the connected state to receive small data.
  • the above method can be implemented in the form of a software program, which runs in a processor integrated within the chip or chip module; or, the method can be implemented in hardware or a combination of software and hardware.
  • a dedicated chip or chip module or use a dedicated chip or chip module combined with a software program.
  • Figure 3 is a schematic structural diagram of a data transmission device in an embodiment of the present application.
  • the data transmission device shown in Figure 3 can be deployed on the above-mentioned terminal.
  • the device shown in Figure 3 can include:
  • the condition determination module 31 is used to determine the transmission conditions and/or the modulation and coding strategy MCS according to the amount of data to be transmitted in the inactive state.
  • the transmission conditions are used to determine whether to perform small data transmission SDT;
  • the transmission module 32 is used to perform SDT when the transmission conditions are met.
  • the data transmission device shown in FIG. 3 may correspond to a chip with a communication function in the terminal; or may correspond to a terminal including a chip or chip module with a communication function, or may correspond to a terminal.
  • Figure 4 is a schematic structural diagram of another data transmission device in an embodiment of the present application.
  • the data transmission device shown in Figure 4 can be deployed on the above-mentioned network equipment.
  • the device shown in Figure 4 can include:
  • Configuration module 41 configured to send configuration information, the signal quality threshold value corresponding to the network-triggered small data transmission mechanism SDT, and/or the modulation and coding strategy MCS corresponding to the network-triggered SDT;
  • the signal quality threshold value corresponding to the network-triggered SDT is used by the terminal to determine whether to initiate the network-triggered SDT, and the MCS corresponding to the network-triggered SDT is used when the terminal initiates the network-triggered SDT. MCS.
  • the data transmission device shown in FIG. 4 may correspond to a chip with a communication function in a network device; or may correspond to a chip or chip module including a communication function in a network device, or may correspond to a network device.
  • Figure 5 is a schematic structural diagram of another data transmission device in an embodiment of the present application.
  • the data transmission device shown in Figure 5 can be deployed on the above-mentioned terminal.
  • the device shown in Figure 5 can include:
  • the receiving module 51 is used to receive paging messages in the inactive state
  • the transmission module 52 is configured to initiate SDT if the amount of data to be transmitted is less than or equal to the first preset threshold and the signal quality of the serving cell is greater than or equal to the second threshold, or to ignore it when determining whether to initiate SDT.
  • the signal quality of the serving cell is configured to initiate SDT if the amount of data to be transmitted is less than or equal to the first preset threshold and the signal quality of the serving cell is greater than or equal to the second threshold, or to ignore it when determining whether to initiate SDT. The signal quality of the serving cell.
  • the data transmission device shown in FIG. 5 may correspond to a chip with a communication function in the terminal; or may correspond to a terminal including a chip or chip module with a communication function, or may correspond to a terminal.
  • Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored. When the computer program is run by a processor, the above-mentioned data transmission method is executed.
  • the storage medium may include ROM, RAM, magnetic disk or optical disk, etc.
  • the storage medium may also include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, etc.
  • An embodiment of the present application also provides a terminal, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor runs the computer program, it executes the above data transmission method.
  • the terminals include but are not limited to terminal devices such as mobile phones, computers, and tablet computers.
  • the terminal may be a mobile phone, a computer, a tablet, a vehicle-mounted terminal, a wearable device, etc., but is not limited thereto.
  • An embodiment of the present application also provides a network device, including a memory and a processor, wherein The memory stores a computer program that can be run on the processor, and when the processor runs the computer program, it performs the steps of the above-mentioned data transmission method.
  • the processor may be a central processing unit (CPU for short), and the processor may also be other general-purpose processors or digital signal processors (DSP for short) , application specific integrated circuit (ASIC for short), field programmable gate array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM) , electrically erasable programmable read-only memory (electrically EPROM, referred to as EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous Dynamic random access memory
  • SDRAM synchronous Dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchronously connect dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computers computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission by wired or wireless means to another website site, computer, server or data center.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed methods, devices and systems can be implemented in other ways.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods during actual implementation; for example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • each module/unit included in them may all use electronics. Circuits and other hardware methods are implemented, or at least some modules/units can be implemented by software programs. The software program runs on the integrated processor inside the chip. The remaining (if any) modules/units can be implemented by circuits and other hardware methods. Implementation; For each device and product applied or integrated in the chip module, each module/unit included in it can be implemented in the form of hardware such as circuits.
  • modules/units can be located in the same component of the chip module (such as a chip , circuit module, etc.) or in different components, or at least some modules/units can be implemented in the form of software programs that run on the processor integrated inside the chip module, and the remaining (if any) modules/units can It is implemented using circuits and other hardware methods; for each device and product that is applied or integrated into the terminal, each module/unit included in it can be implemented using circuits and other hardware methods.
  • modules/units can be located in the same component in the terminal (such as , chips, circuit modules, etc.) or in different components, or at least some modules/units can be implemented in the form of software programs that run on the processor integrated inside the terminal, and the remaining (if any) modules/units can It is implemented using hardware methods such as circuits.
  • the above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium and includes a number of instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disk or optical disk, etc., which can store program code. medium.
  • Multiple appearing in the embodiments of this application refers to two or more than two.

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Abstract

一种数据传输方法及装置、计算机可读存储介质、终端，所述方法包括：在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；在满足所述传输条件的情况下，进行SDT。本申请提供了一种更加灵活的小数据传输的方案。

Description

数据传输方法及装置、计算机可读存储介质、终端
本申请要求于2022年7月28日提交中国专利局、申请号为202210901268.7、发明名称为“数据传输方法及装置、计算机可读存储介质、终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法及装置、计算机可读存储介质、终端。
背景技术
在新空口(New Radio，简称NR)中，用户终端(User Equipment，简称UE)在有业务需求时，会接入网络建立无线资源控制(Radio Resource Control，简称RRC)连接，建立专用承载以便传输数据。UE在进入连接态后，基站会为该UE分配必要的参数，如安全算法相关的参数，数据链路层(Layer 2，简称L2)相关的配置参数，物理层(Layer 1，简称L1)相关的配置参数以及网络层(Layer 3，简称L3)相关的配置参数等。对于建立的承载，基站需要知晓为该承载所建立的与核心网之间的通道信息。上述参数均称为UE的上下文(UE Context)。当UE从连接态进入空闲态时，基站会释放该UE的所有参数，即释放该UE的上下文。如果UE期待再次建立业务，基站需要重新为该UE配置上述参数。这个过程将通过多条空口信令以及S1接口信令完成。
在实际的应用中，不同UE有不同的业务需求，比如有些UE在一段时间内会多次传输数据，每一次传输数据的时间有限。针对这一 类业务需求，如果采用现有的机制，每次传输数据均需要建立连接，待数据传输结束再释放连接。在UE重复多次传输的情况下将产生大量的信令交互，这将导致网络信令负载过大，数据传输的效率大大降低。
针对上述问题，第五代(5th-generation，简称5G)的协议版本15(Release15，简称R15)引入了非激活态(Inactive)。在UE处于非激活态时，网络保留为该UE所建立的RRC连接的配置、承载的配置、与安全相关的配置以及S1接口与该UE相关的参数配置等，UE也需要保存RRC连接配置、承载的配置、安全配置等。进入非激活态的UE在有数据传输时，可以利用保存的参数配置，快速接入网络。具体地，UE通过RRC连接恢复流程恢复RRC连接，之后进行数据传输，因为UE和网络均有该UE的RRC连接参数，因此UE可以快速的接入网络传输数据，不必像之前UE需要先建立RRC连接、建立承载然后再传输数据，因此可以节省大量的信令。
考虑到UE在非激活态下有小数据(Small Data)发送的需求，如果UE每次均重建恢复RRC连接进行数据传输，仍然会造成传输效率低下。为此，协议版本17(Release15，简称R17)引入了小数据传输(Small Data Transmission，简称SDT)机制，在满足预设的应用条件的情况下，UE可以在非激活态下向网络发送少量的上行数据。
发明内容
本申请的技术目的在于提供一种更加灵活的小数据传输的方案。
为解决上述技术问题，第一方面，本申请实施例提供一种数据传输方法，所述方法应用于终端中，包括：在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；在满足所述传输条件的情况下，进行SDT。
可选的，在根据待传输的数据量，确定传输条件和/或调制编码策略MCS之前，所述方法还包括：接收寻呼消息，所述寻呼消息指示终端发起小数据传输机制。
可选的，根据待传输的数据量，确定传输条件和/或调制编码策略MCS包括：如果所述待传输的数据量大于第一预设阈值，则采用第一传输条件，否则，采用第二传输条件；其中，所述第一传输条件包括：服务小区的信号质量大于或等于第一门限值，所述第二传输条件包括：服务小区的信号质量大于或等于第二门限值，所述第二门限值小于所述第一门限值，或者，所述第二传输条件不包括所述服务小区的信号质量大于或等于门限值。
可选的，所述服务小区的信号质量由参考信号接收功率RSRP来表征。
可选的，根据待传输的数据量，确定传输条件和/或调制编码策略MCS包括：如果所述待传输的数据量大于第一预设阈值，则采用第一MCS，否则，采用第二MCS，其中，所述第一MCS的调制阶数大于所述第二MCS的调制阶数。
可选的，进行SDT之前，所述方法还包括：确定SDT的方式，所述SDT的方式为：基于配置授权的SDT机制，或者，基于随机接入的SDT机制。
第二方面，本申请实施例提供一种数据传输方法，所述方法应用于网络设备中，包括：发送配置信息，所述配置信息包括：网络触发的小数据传输机制SDT对应的信号质量的门限值，和/或，网络触发的SDT对应的调制编码策略MCS；其中，所述网络触发的SDT对应的信号质量的门限值用于终端判断是否发起由网络触发的SDT，所述网络触发的SDT对应的MCS为所述终端发起由网络触发的SDT时采用的MCS。
可选的，第一门限值大于第二门限值；其中，所述第一门限值为 非由网络触发的SDT对应的信号质量的门限值，所述第二门限值为所述网络触发的SDT对应的信号质量的门限值。
可选的，所述服务小区的信号质量由参考信号接收功率RSRP来表征。
可选的，第一MCS的调制阶数大于第二MCS的调制阶数；其中，所述第一MCS为所述终端发起非由网络触发的SDT时采用的MCS，所述第二MCS为所述网络触发的SDT对应的MCS。
第三方面，本申请实施例还提供一种数据传输装置，所述装置包括：条件确定模块，用于在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；传输模块，用于在满足所述传输条件的情况下，进行SDT。
第四方面，本申请实施例还提供一种数据传输装置，所述装置包括：配置模块，用于发送配置信息，网络触发的小数据传输机制SDT对应的信号质量的门限值，和/或，网络触发的SDT对应的调制编码策略MCS；其中，所述网络触发的SDT对应的信号质量的门限值用于终端判断是否发起由网络触发的SDT，所述网络触发的SDT对应的MCS为所述终端发起由网络触发的SDT时采用的MCS。
第五方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时，使得上述任一方面提供的数据传输方法被执行。
第六方面，本申请实施例提供一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行第一方面提供的数据传输方法的步骤。
第七方面，本申请实施例提供一种网络设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行第二方面提供的数据传输方法的 步骤。
第八方面，本申请实施例提供一种数据传输方法，所述方法应用于终端中，包括：在非激活态下接收寻呼消息；如果待传输的数据量小于或等于第一预设阈值，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，或者，在判断是否发起SDT时忽略服务小区的信号质量。
可选的，如果待传输的数据量小于或等于第一预设阈值，且服务小区的信号质量小于第二门限值，则发起RRC恢复流程。
可选的，所述待传输的数据是指除RRC恢复请求消息之外的其他待发送的数据。
可选的，所述第一预设阈值为0。
可选的，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT包括：采用第二MCS发起基于配置授权的SDT，所述第二MCS的调制阶数小于第一MCS的调制阶数，所述第一MCS是指在待传输的数据量大于第二预设阈值的情况下发起基于配置授权的SDT时采用的MCS。
第九方面，本申请实施例提供一种数据传输装置，所述装置包括：在非激活态下接收寻呼消息，如果待传输的数据量小于或等于第一预设阈值，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，或者，在判断是否发起SDT时忽略服务小区的信号质量。
与现有技术相比，本申请实施例的技术方案具有以下有益效果：
本申请实施例的方案中，在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；在满足所述传输条件的情况下，进行SDT。采用这样的方案，可以根据待传输的数据量灵活地选择用于判断是否进行SDT的传输条件以及进行SDT的MCS，有利于增加在非激活态下进行小数据传输的可能性和准确度。
进一步，本申请实施例的方案中，考虑到待传输的数据量较少(例如，小于或等于第一预设阈值)时，数据传输对于信道条件的要求也较低，采用较低的门限值对服务小区的信号质量进行判断，从而增大了在非激活态下应用SDT的概率。相较于上述的现有技术，降低了终端由非激活态进入连接态之后进行数据传输的概率，由于无需建立RRC连接，因此有利于降低信令开销。
进一步，本申请实施例的方案中，在待传输的数据量较少(例如，小于或等于第一预设阈值)的情况下，采用低阶的MCS即可有效地传输待传输的数据，有利于提高SDT的抗干扰性，降低误码率，以便网络准确地接收到终端发送的信息。
附图说明
图1是本申请实施例中一种数据传输方法的流程示意图；
图2是本申请实施例中另一种数据传输方法的流程示意图；
图3是本申请实施例中一种数据传输装置的结构示意图；
图4是本申请实施例中另一种数据传输装置的结构示意图；
图5是本申请实施例中又一种数据传输装置的结构示意图。
具体实施方式
如背景技术所述，现有的SDT的方案中，在满足预设条件的情况下，UE可以在非激活态下向网络发送少量的上行数据。目前，终端在判断是否发起SDT时，均严格使用预设条件，SDT的灵活性较差。
为此，本申请实施例提供一种数据传输方法，在本申请实施例的方案中，在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输 SDT；在满足所述传输条件的情况下，进行SDT。采用这样的方案，可以根据待传输的数据量灵活地选择用于判断是否进行SDT的传输条件以及进行SDT的MCS，有利于增加在非激活态下进行小数据传输的可能性和准确度。
需要说明的是，本申请实施例适用的通信系统包括但不限于第三代系统(3th-generation，简称3G)、长期演进(long term evolution，简称LTE)系统、第四代系统(4th-generation，简称4G)、第五代(5th-generation，简称5G)系统、新空口(New Radio，简称NR)系统，以及未来演进系统或者多种通信融合系统。其中，5G系统可以为非独立组网(non-standalone，简称NSA)的5G系统或独立组网(standalone，简称SA)的5G系统。本申请实施例的方案还可适用于未来新的各种通信系统，例如，6G、7G等。
本申请实施例中的终端可以指各种形式的用户设备(User Equipment，简称UE)、接入终端、用户单元、用户站、移动站、移动台(Mobile Station，简称MS)、远方站、远程终端、移动设备、用户终端、终端设备(Terminal Equipment)、无线通信设备、用户代理或用户装置。终端还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字处理(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端等，本申请实施例对此并不限定。
本申请实施例中的网络设备也可以称为接入网设备，例如，可以为基站(base station，简称BS)(也可称为基站设备)，网络设备是一种部署在无线接入网(Radio Access Network，RAN)用以提供无线通信功能的装置。例如在第二代(2nd-generation，简称2G)网络中提供基站功能的设备包括基地无线收发站(base transceiver station， 简称BTS)，第三代(3rd-generation，简称3G)网络中提供基站功能的设备包括节点B(Node B)，在第四代(4th-generation，简称4G)网络中提供基站功能的设备包括演进的节点B(evolved NodeB，简称eNB)，在无线局域网络(wireless local area networks，简称WLAN)中，提供基站功能的设备为接入点(access point，简称AP)，NR中的提供基站功能的设备下一代基站节点(next generation node base station，简称gNB)，以及继续演进的节点B(ng-eNB)，其中gNB和终端设备之间采用NR技术进行通信，ng-eNB和终端设备之间采用演进的通用地面无线电接入(Evolved Universal Terrestrial Radio Access，简称E-UTRA)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的网络设备还包含在未来新的通信系统中提供基站功能的设备等。
为使本申请的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本申请的具体实施例做详细的说明。
参照图1，图1是本申请实施例中一种数据传输方法的流程示意图。图1示出的方法可以由终端(或者也可称为“UE”)执行。图1示出的方法可以应用于终端主动发起SDT的场景中，也可以应用于网络触发终端发起SDT的场景中。图1示出的数据传输方法可以包括：
步骤S11：在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；
步骤S12：在满足所述传输条件的情况下，进行SDT。
在步骤S11的具体实施中，终端根据待传输的数据量，确定传输条件和/或调制编码策略(Modulation and Coding Scheme，简称MCS)。
需要说明的是，本申请实施例的方案中，所述待传输的数据是指终端向网络发送的上行数据，所述待传输的数据量可以是指待传输的 数据的比特数。待传输的数据可以包括信令以及除信令外的其他类型的数据。例如，在非激活态下终端可以传输定位信息，所述定位信息可以利用本申请实施例提供的方案进行传输。
还需要说明的是，本申请实施例中所称的“待传输的数据”并不包括建立RRC连接过程中终端发送的数据。更具体地，所述待传输的数据可以是指除RRC恢复请求消息之外的待传输的数据。
进一步地，可以判断待传输的数据量是否大于第一预设阈值，其中，所述第一预设阈值可以是由协议预先定义的，也可以是由网络预先配置的。在一个非限制性的例子中，所述第一预设阈值为0。
进一步地，如果待传输的数据量大于第一预设阈值，则可以采用第一传输条件。换言之，在待传输的数据量大于第一预设阈值的情况下，采用第一传输条件判断是否进行SDT。
其中，第一传输条件包括：服务小区的信号质量大于或等于第一门限值。所述信号质量可以是指参考信号接收功率(Reference Signal Receiving Power，简称RSRP)，相应的，所述第一门限值为第一RSRP门限值。也即，可以通过RSRP来表征信号质量。换言之，第一传输条件可以包括：服务小区的RSRP大于或等于第一RSRP门限值。需要说明的是，信号质量也可以通过其他现有的参数进行表征，所述第一门限值与表征信号质量的参数相对应，本申请实施例对此并不进行限制。其中，所述信号质量可以由终端测量确定。
进一步地，第一传输条件还可以包括以下任意一项或多项：待传输的数据量小于或等于第二预设阈值，待传输的数据属于可应用SDT的无线承载。
一方面，如果终端确定待传输的数据量大于第二预设阈值，则可以发起RRC恢复流程，并在RRC连接后传输待传输的数据。也即，在待传输的数据量大于第二预设阈值的情况下，并不适用SDT，因此，终端通过恢复RRC连接，自非激活态进入连接态，并在进入连接态 之后发送待传输的数据。可以理解的是，在连接态下进行的数据传输并非是本申请实施例中所称的SDT。其中，第一预设阈值小于第二预设阈值，第二预设阈值可以是由协议预先定义的，也可以是由网络预先配置的。
另一方面，在之前终端接入网络后，网络在配置终端关于应用SDT的配置参数时，同时配置可以应用SDT机制的数据无线承载，即可以在非激活态下进行小数据传输的无线承载或逻辑信道。如果待传输的数据属于可应用SDT的无线承载，则可以通过SDT机制进行数据传输；如果待传输的数据不属于可应用SDT的无线承载，则无法使用SDT进行数据传输，终端需要发起随机接入，建立RRC连接之后再进行数据传输。
在其他实施例中，也可以在执行步骤S11之前先判断待传输的数据量是否大于第二预设阈值，如果是，则可以继续执行步骤S11，否则，发起RRC恢复流程，并在RRC连接后传输待传输的数据。可以理解的是，在这种情况下，执行步骤S11时不再判断待传输的数据量是否大于第二预设阈值。
进一步地，如果待传输的数据量小于或等于第一预设阈值，则采用第二传输条件。换言之，在待传输的数据量小于或等于第一预设阈值的情况下，采用第二传输条件判断是否进行SDT。
在本申请的一实施例中，第二传输条件包括：服务小区的信号质量大于或等于第二门限值。其中，第二门限值小于第一门限值。需要说明的是，第二传输条件用于表征信号质量的参数和第一传输条件中用于表征信号质量的参数是相同的。例如，第二传输条件可以包括：服务小区的RSRP大于或等于第二RSRP门限值，第二RSRP门限值小于第一RSRP门限值。
在本申请的另一实施例中，第二传输条件忽略服务小区的信号质量。换言之，第二传输条件不包括“服务小区的信号质量大于或等于门限值”。也即，第二传输条件中未配置用于对服务小区的信号质量 进行判断的门限值。也即，终端应用第二传输条件判断是否发起SDT时，并不判断服务小区的信号质量是否大于或等于某一门限值，由此终端也无需对服务小区的信号质量进行测量。
更具体地，第二传输条件可以仅包括：待传输的数据属于可应用SDT的无线承载。也即，第二传输条件可以不包括：待传输的数据量小于或等于第二预设阈值，这是由于第一预设阈值小于第二预设阈值，当应用第二传输条件进行判断时，待传输的数据量必然小于第二预设阈值。
在一个非限制性的例子中，如果待传输的数据量为0，则可以忽略服务小区的信号质量。如果待传输的数据量小于或等于第一预设阈值且待传输的数据量不为0，则可以采用第二门限值对服务小区的信号质量进行判断。
需要强调的是，现有技术中严格适用单一门限值的方案。采用这样的方案时，在待传输的数据量较少(例如，小于或等于第一预设阈值)的情况下，由于服务小区的信号质量不满足预设条件，因此无法在非激活态下进行传输，这种情况下终端会自非激活态进入连接态，并在连接态下传输待传输的数据。
而本申请实施例的方案中，根据待传输的数据量应用不同的信号质量的门限值判断是否发起SDT。考虑到待传输的数据量较少(例如，小于或等于第一预设阈值)时，数据传输对于信道条件的要求也较低，可以采用较低的门限值对服务小区的信号质量进行判断，从而增大了在非激活态下应用SDT的概率。相较于上述的现有技术，降低了终端由非激活态进入连接态之后再进行数据传输的概率，由于无需建立RRC连接，因此有利于降低信令开销。
进一步地，还可以根据待传输的数据量确定MCS。更具体地，在采用基于配置授权的SDT机制的情况下，可以根据待传输的数据量确定MCS。关于基于配置授权的SDT机制的具体内容将在下面具体描述，在此不再赘述。
在本申请的一实施例中，如果待传输的数据量大于第一预设阈值，则可以确定第一MCS作为进行SDT时采用的MCS，如果待传输的数据量小于或等于第二预设阈值，则可以采用第二MCS作为进行SDT时采用的MCS。其中，所述第一MCS的调制阶数(Modulation Order)大于所述第二MCS的调制阶数。
在具体实施中，第一MCS和第二MCS均是由协议预先定义的，或者，可以是由网络预先配置的。
在一个非限制性的例子中，待传输的数据量越小，进行SDT时采用的MCS的调制阶数越小。
可以理解的是，MCS的调制阶数越大，每个符号(或者码元)所能代表的比特数越多，传输效率越高，相应的，传输的误码率也越高、抗干扰性也越差。相反，MCS的调制阶数越小，传输效率越低，但误码率也越低，抗干扰性也越高。
本申请实施例的方案中，在待传输的数据量较少(例如，小于或等于第一预设阈值)的情况下，采用低阶的MCS即可有效地传输待传输的数据，此时有利于提高SDT的抗干扰性，降低误码率，以便网络准确地接收到终端发送的信息。
在步骤S12的具体实施中，可以先判断是否满足步骤S11中确定的传输条件。
情况1：待传输的数据量大于第一预设阈值，传输条件为上述的第一传输条件。
终端对服务小区的信号质量进行测量，如果终端测得服务小区的信号质量大于或等于第一门限值，则可以确定服务小区的信号质量满足SDT的传输需求。
相应的，如果终端确定还满足第一传输条件中其他条件的限定(例如，待传输的数据量小于或等于第二预设阈值，待传输的数据属于可应用SDT的无线承载)，则可以确定满足第一传输条件。
情况2：待传输的数据量小于或等于第一预设阈值，传输条件为上述的第二传输条件。
在本申请的一实施例中，终端对服务小区的信号质量进行测量，如果终端测得服务小区的信号质量大于或等于第二门限值，则可以确定服务小区的信号质量满足SDT的传输需求。
在本申请的另一实施例中，在待传输的数据量小于第一预设阈值的情况下，终端直接确定服务小区的信号质量满足SDT的传输需求。也即，在待传输的数据量小于或等于第一预设阈值的情况下，并不对服务小区的信号质量进行测量。
进一步地，如果终端确定还满足第二传输条件中其他条件的限定(例如，待传输的数据属于可应用SDT的无线承载)，则可以确定满足第二传输条件。
需要说明的是，如果确定不满足传输条件(例如，在情况1下不满足第一传输条件，在情况2下不满足第二传输条件)，则可以发起RRC恢复流程，并在RRC连接后传输待传输的数据。终端通过恢复RRC连接，自非激活态进入连接态，并在进入连接态之后发送待传输的数据。
进一步地，在满足传输条件的情况下，可以进行SDT。
具体而言，进行SDT过程中采用的MCS也可以是根据待传输的数据量确定的。更具体地，如上文所述，如果待传输的数据量大于第一预设阈值，则可以采用第一MCS进行SDT，如果待传输的数据量小于或等于第二预设阈值，则可以采用第二MCS进行SDT。其中，所述第一MCS的调制阶数大于所述第二MCS的调制阶数。
采用这样的方案，通过采用低阶的MCS，有利于在待传输的数据量较少的情况下降低误码率，提高数据传输的准确度。
在本申请一实施例中，在进行SDT之前，可以先确定SDT的方式，所述SDT的方式可以为以下任意一种：基于配置授权(Configured  Grant)的SDT机制(简称CG-SDT)，基于随机接入(Random Access)的SDT机制(简称RA-SDT)。
基于配置授权的SDT机制可以是指：网络设备(例如基站)在将终端转入非激活态时同时为终端配置授权的传输资源，在非激活态下，当终端有SDT的需求时，可以利用授权的传输资源进行传输。
具体而言，网络可以预先为终端配置用于上行传输的时频资源，例如，可以通过无线资源控制上行链路授权(RRC Configured Uplink Grant)参数进行配置。
更具体地，RRC上行链路授权参数可以包括：频域资源分布(frequency Domain Allocation)和调制编码机制参数。在协议中，所述调制编码机制参数通常可以被表示为mcsAndTBS。所述调制编码机制参数可以用于指示SDT采用的MCS的调制阶数，还可以用于指示目标码率(Target Code Rate)和传输数据块大小(Transport Block Size，简称TBS)。
基于随机接入的SDT机制可以是指：在随机接入的过程中传输小数据，也即，在随机接入的同时传输小数据。例如，在4步的随机接入过程中，在第3步终端可以同时发送消息3(MSG3)和小数据，基站如果成功接收，可以在第4步直接释放终端，从而实现在非激活态下传输小数据。
在具体实施中，在满足上述传输条件的情况下，终端可以先判断是否进行CG-SDT。具体而言，终端可以判断是否满足预设的应用条件，所述应用条件用于判断是否可以进行CG-SDT。更具体地，应用条件可以包括：上行定时提前(Uplink Timing Advance)大于或等于预设值。
在满足预设的应用条件的情况下，终端可以发起CG-SDT。
终端在进行CG-SDT时，如果待传输的数据量大于第一预设阈值，则可以采用第一MCS，如果待传输的数据量小于或等于第一预 设阈值，则可以采用第二MCS。其中，第二MCS可以是由网络设备预先配置的。例如，可以是通过调制编码机制参数进行配置的。相较于采用第一MCS，采用第二MCS时调制阶数和码率均会降低。
进一步地，如果不满足预设的应用条件，则终端可以发起RA-SDT。
如上文所述，终端可以在发送消息3(MSG3)时一并发送待传输的数据。
由上，本申请实施例的方案中，根据待传输的数据量灵活地选择用于判断是否进行SDT的传输条件以及进行SDT的MCS，有利于增加在非激活态下进行小数据传输的可能性和准确度。
参照图2，图2是本申请实施例中另一种数据传输方法的流程示意图。图2可以应用于网络触发终端进行SDT的场景。
具体而言，R17目前仅考虑终端主动发起SDT的场景，也即，终端仅在有上行数据传输的情况下主动发起SDT。图2示出的方案中，由网络触发终端发起小数据传输。在本申请实施例的方案中，由网络触发终端发起的SDT可以记为MT-SDT。
在一个非限制性的例子中，服务小区收到核心网下发的下行数据包，鉴于下行数据包的比特数较少，服务小区期待尝试采用MT-SDT的方式向终端发送下行数据包。由于终端在非激活态下可以周期性地接收寻呼消息，因此服务小区可以通过寻呼消息触发终端在非激活态下进行小数据传输，避免转入连接态，引发大量的信令开销。
由此可知，本申请实施例的方案中，网络触发终端发起SDT可以是指网络触发终端发起SDT以接收网络发送的下行数据。在这种SDT的场景中，终端可以不发送除RRC恢复请求以外的数据。
需要说明的是，在其他实施例中，网络触发终端发起SDT也可以是指网络触发终端发送上行数据，本实施例对此并不进行限制。
图2示出的方法可以包括：
步骤S21：在非激活态下接收寻呼消息；
步骤S22：如果待传输的数据量小于或等于第一预设阈值，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，或者，在判断是否发起SDT时忽略服务小区的信号质量。
在执行步骤S21之前，网络设备可以向终端发送配置信息，所述配置信息可以包括：第二门限值和/或第二MCS。
在图2示出的实施例中，所述第二门限值可以是指网络触发的SDT对应的信号质量的门限值，所述网络触发的SDT对应的信号质量的门限值可以用于终端判断是否发起由网络触发的SDT。也即，第二门限值可以用于终端判断是否发起由网络触发的SDT。
所述第二门限值可以是指网络触发的SDT对应的MCS，所述网络触发的SDT对应的MCS是指终端发起网络触发的SDT时采用的MCS。
进一步地，终端还可以预先配置有第一门限值和/或第一MCS。
其中，第一门限值可以是指非由网络触发的SDT对应的信号质量的门限值，所述非由网络触发的SDT对应的信号质量的门限值可以用于终端判断是否发起非由网络触发的SDT。也即，第一门限值可以用于终端判断是否发起非由网络触发的SDT。
第一MCS可以是指非由网络触发的SDT对应的MCS，所述非由网络触发的SDT对应的MCS是指终端发起非由网络触发的SDT时采用的MCS。
需要说明的是，当信号质量采用RSRP来表征时，第一门限值可以是指第一RSRP门限值，第二门限值可以是指第二RSRP门限值，第二RSRP门限值小于第一RSRP门限值。
在步骤S21的具体实施中，终端在非激活态下可以接收寻呼消 息，所述寻呼消息可以是由网络设备(例如基站)发送的，所述寻呼消息可以用于指示终端发起SDT。也即，网络设备可以通过寻呼消息触发终端发起SDT。
更具体地，寻呼消息可以包括指示信息，所述指示信息用于指示终端发起SDT。当接收到的寻呼消息包括指示信息时，终端可以确定网络设备触发终端发起SDT，终端可以进一步判断是否发起SDT。
在步骤S22的具体实施中，如果终端确定待传输的数据量大于第一预设阈值，则可以采用第一传输条件判断是否发起SDT。如果终端确定待传输的数据量小于或等于第一预设阈值，则可以采用上述的第二传输条件判断是否发起SDT。其中，第一预设阈值可以是由协议预先定义的，也可以是由网络预配置的。更具体地，在网络触发终端发起SDT以接收下行数据的情况下，第一预设阈值可以是0。
具体而言，如果待传输的数据量小于或等于第一预设阈值，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，或者，在判断是否发起SDT时忽略服务小区的信号质量。
关于第一传输条件、第二传输条件以及终端判断是否发起SDT的更多内容可以参照图1的相关描述，在此不再赘述。
进一步地，在待传输的数据量小于或等于第一预设阈值的情况下，如果服务小区的信号质量小于第二门限值，则终端发起RRC恢复流程，并在连接态下发送待传输的数据。
进一步地，在进行SDT时，如果采用基于配置授权的SDT机制，在待传输的数据量小于或等于第一预设阈值的情况下，终端可以采用第二MCS进行SDT；在待传输的数据量大于第一预设阈值，终端可以采用第一MCS进行SDT其中，第二MCS的调制阶数小于第一MCS的调制阶数。
需要说明的是，关于图2示出的数据传输方法的更多内容可以参照图1的相关描述，在此不再赘述。
由上，本申请实施例的方案中，通过放松传输条件，可以使得终端更加广泛地应用MT-SDT，避免终端转入连接态进行小数据接收。
可以理解的是，在具体实施中，上述方法可以采用软件程序的方式实现，该软件程序运行于芯片或芯片模组内部集成的处理器中；或者，该方法可以采用硬件或者软硬结合的方式来实现，例如用专用的芯片或芯片模组来实现，或者，用专用的芯片或芯片模组结合软件程序来实现。
参照图3，图3是本申请实施例中一种数据传输装置的结构示意图，图3示出的数据传输装置可以部署于上述的终端，图3示出的装置可以包括：
条件确定模块31，用于在非激活态下，根据待传输的数据量，确定传输条件和/或调制编码策略MCS，所述传输条件用于判断是否进行小数据传输SDT；
传输模块32，用于在满足所述传输条件的情况下，进行SDT。
在具体实施中，图3示出的数据传输装置可以对应于终端中具有通信功能的芯片；或者对应于终端中包括具有通信功能的芯片或芯片模组，或者对应于终端。
参照图4，图4是本申请实施例中另一种数据传输装置的结构示意图，突4示出的数据传输装置可以部署于上述的网络设备，图4示出的装置可以包括：
配置模块41，用于发送配置信息，网络触发的小数据传输机制SDT对应的信号质量的门限值，和/或，网络触发的SDT对应的调制编码策略MCS；
其中，所述网络触发的SDT对应的信号质量的门限值用于终端判断是否发起由网络触发的SDT，所述网络触发的SDT对应的MCS为所述终端发起由网络触发的SDT时采用的MCS。
在具体实施中，图4示出的数据传输装置可以对应于网络设备中具有通信功能的芯片；或者对应于网络设备中包括具有通信功能的芯片或芯片模组，或者对应于网络设备。
参照图5，图5是本申请实施例中又一种数据传输装置的结构示意图，图5示出的数据传输装置可以部署于上述的终端，图5示出的装置可以包括：
接收模块51，用于在非激活态下，接收寻呼消息；
传输模块52，用于如果待传输的数据量小于或等于第一预设阈值，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，或者，在判断是否发起SDT时忽略服务小区的信号质量。
在具体实施中，图5示出的数据传输装置可以对应于终端中具有通信功能的芯片；或者对应于终端中包括具有通信功能的芯片或芯片模组，或者对应于终端。
关于本申请实施例中的数据传输装置的工作原理、工作方法和有益效果等更多内容，可以参照上文关于数据传输方法的相关描述，在此不再赘述。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时，上述的数据传输方法被执行。所述存储介质可以包括ROM、RAM、磁盘或光盘等。所述存储介质还可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器等。
本申请实施例还提供一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述的数据传输方法的步骤。所述终端包括但不限于手机、计算机、平板电脑等终端设备。所述终端可以是手机、计算机、平板电脑、车载终端和穿戴式设备等，但并不限于此。
本申请实施例还提供一种网络设备，包括存储器和处理器，所述 存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述的数据传输方法的步骤。
应理解，本申请实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现场可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计 算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的；例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式；例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电 路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特 别限定，不能构成对本申请实施例的任何限制。
虽然本申请披露如上，但本申请并非限定于此。任何本领域技术人员，在不脱离本申请的精神和范围内，均可作各种更动与修改，因此本申请的保护范围应当以权利要求所限定的范围为准。

Claims (18)

  1. 一种数据传输方法，其特征在于，所述方法应用于终端中，包括：在非激活态下接收寻呼消息，所述寻呼消息用于指示终端发起小数据传输SDT；
    在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，所述第二门限值是指网络触发的SDT对应的信号质量的门限值。
  2. 根据权利要求1所述的数据传输方法，其特征在于，在服务小区的信号质量大于或等于第二门限值的情况下发起SDT包括：
    如果待传输的数据量小于或等于第一预设阈值，在所述服务小区的信号质量大于或等于所述第二门限值的情况下，发起所述网络触发的SDT。
  3. 根据权利要求2所述的数据传输方法，其特征在于，所述方法还包括：
    如果所述待传输的数据量大于第一预设阈值，采用第一传输条件判断是否发起SDT。
  4. 根据权利要求1所述的数据传输方法，其特征在于，所述方法还包括：
    根据第一门限值判断是否发起非由网络触发的SDT，其中，所述第一门限值是指所述非由网络触发的SDT对应的信号质量的门限值。
  5. 根据权利要求4所述的数据传输方法，其特征在于，所述第二门限值小于所述第一门限值。
  6. 根据权利要求1所述的数据传输方法，其特征在于，所述服务小区的信号质量由参考信号接收功率RSRP来表征。
  7. 根据权利要求1所述的数据传输方法，其特征在于，所述第二门限值由网络设备配置。
  8. 根据权利要求7所述的数据传输方法，其特征在于，所述方法还包括：
    若所述网络设备未配置所述第二门限值，则根据第一门限值判断是否发起所述网络触发的SDT，其中，所述第一门限值是指网络设备为终端主动发起的SDT所配置的信号质量的门限值。
  9. 根据权利要求1所述的数据传输方法，其特征在于，进行SDT之前，所述方法还包括：
    确定SDT的方式，所述SDT的方式为：基于配置授权的SDT机制，或者，基于随机接入的SDT机制。
  10. 一种数据传输方法，其特征在于，所述方法应用于网络设备中，包括：
    发送配置信息，所述配置信息包括：网络触发的小数据传输机制SDT对应的信号质量的门限值，和/或，网络触发的SDT对应的调制编码策略MCS；
    其中，所述网络触发的SDT对应的信号质量的门限值用于终端判断是否发起由网络触发的SDT，所述网络触发的SDT对应的MCS为所述终端发起由网络触发的SDT时采用的MCS。
  11. 根据权利要求10所述的数据传输方法，其特征在于，第一门限值大于第二门限值；
    其中，所述第一门限值为非由网络触发的SDT对应的信号质量的门限值，所述第二门限值为所述网络触发的SDT对应的信号质量的门限值。
  12. 根据权利要求10所述的数据传输方法，其特征在于，服务小区的信号质量由参考信号接收功率RSRP来表征。
  13. 根据权利要求10所述的数据传输方法，其特征在于，第一MCS的调制阶数大于第二MCS的调制阶数；
    其中，所述第一MCS为所述终端发起非由网络触发的SDT时采用的MCS，所述第二MCS为所述网络触发的SDT对应的MCS。
  14. 一种数据传输装置，其特征在于，所述装置包括：
    接收模块，用于在非激活态下接收寻呼消息，所述寻呼消息用于指示终端发起小数据传输SDT；
    传输模块，用于在服务小区的信号质量大于或等于第二门限值的情况下发起SDT，所述第二门限值是指网络触发的SDT对应的信号质量的门限值。
  15. 一种数据传输装置，其特征在于，包括：
    配置模块，用于发送配置信息，网络触发的小数据传输机制SDT对应的信号质量的门限值，和/或，网络触发的SDT对应的调制编码策略MCS；
    其中，所述网络触发的SDT对应的信号质量的门限值用于终端判断是否发起由网络触发的SDT，所述网络触发的SDT对应的MCS为所述终端发起由网络触发的SDT时采用的MCS。
  16. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时，使得权利要求1至13任一项所述的数据传输方法被执行。
  17. 一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至9任一项所述的数据传输方法的步骤。
  18. 一种网络设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行 所述计算机程序时执行权利要求10至13任一项所述的数据传输方法的步骤。
PCT/CN2023/109476 2022-07-28 2023-07-27 数据传输方法及装置、计算机可读存储介质、终端 WO2024022418A1 (zh)

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