WO2022001893A1 - 确定数据传输方式的方法及装置 - Google Patents

确定数据传输方式的方法及装置 Download PDF

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Publication number
WO2022001893A1
WO2022001893A1 PCT/CN2021/102526 CN2021102526W WO2022001893A1 WO 2022001893 A1 WO2022001893 A1 WO 2022001893A1 CN 2021102526 W CN2021102526 W CN 2021102526W WO 2022001893 A1 WO2022001893 A1 WO 2022001893A1
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WIPO (PCT)
Prior art keywords
data
mode
terminal
response message
network device
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PCT/CN2021/102526
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English (en)
French (fr)
Inventor
行双双
徐修强
吴艺群
陈雁
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华为技术有限公司
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Publication of WO2022001893A1 publication Critical patent/WO2022001893A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of wireless communication, and in particular, to a method and apparatus for determining a data transmission mode.
  • a terminal can send user plane data (UP data) to a network device through any of the following five data transmission methods: 4-step random access (random access) channel, RACH), early data transmission (EDT), two-step (2-step) RACH, 2-step RACH carrying user plane data, or contention-based authorization-free (configured grant, CG) transmission method.
  • UP data user plane data
  • RACH 4-step random access (random access) channel
  • EDT early data transmission
  • 2-step RACH 2-step RACH carrying user plane data
  • contention-based authorization-free configured grant, CG
  • the terminal completes random access through four signaling interactions with the network device, and sends user plane data to the network device after the random access is successful.
  • the terminal completes random access through four signaling interactions with the network device, and carries user plane data during the third signaling interaction.
  • the terminal completes random access through two signaling interactions with the network device, and sends user plane data to the network device after the random access is successful.
  • the terminal completes random access through two signaling interactions with the network device, and carries user plane data in the first signaling interaction.
  • the terminal does not need to perform random access, but directly sends user plane data to the network device when the timing advance (TA) is valid.
  • TA timing advance
  • the terminal in 4-step RACH mode transmits user plane data after four signaling interactions; the terminal in EDT mode carries user plane data during the third signaling interaction among the four signaling; 2- The terminal in step RACH mode transmits user plane data after two signaling exchanges; the terminal in 2-step RACH mode carrying user plane data carries user plane data in the first signaling interaction in the two signaling; based on contention After the terminal in the CG transmission mode competes for the resource for transmitting the user plane data, it sends the user plane data to the network device. From this, it can be known that the data transmission delay of the 2-step RACH mode carrying user plane data and the data transmission delay of the contention-based CG transmission mode are smaller among the above five methods.
  • the resources used for transmitting user plane data in each method are limited. Therefore, when a terminal in a communication system transmits user plane data, the user plane data transmission may fail due to resource collision or congestion. condition. When the user plane data transmission fails, the terminal will try to retransmit the user plane data using the current data transmission mode. In this case, the terminal also fails transmission again due to resource collision or congestion.
  • the embodiments of the present application provide a method and apparatus for determining a data transmission mode, which can determine the transmission mode used for retransmission of the data for the terminal in the case of a terminal failure to transmit data, so as to avoid the terminals in the communication system from using the same transmission mode This data is retransmitted, resulting in a lower success rate for retransmitting the data.
  • an embodiment of the present application provides a method for determining a data transmission mode, the method includes: a terminal sends data to a network device in a first manner; in the case that the data transmission fails, the terminal according to the received data for the The data response message determines the second mode used by the terminal to retransmit at least a part of the data; or, in the case that the data transmission fails, the terminal determines that the terminal retransmits at least part of the data according to a preset condition The second method used by a portion of the data.
  • the terminal may send data to the network device in the first manner, and in the case of data transmission failure, determine that the terminal retransmits the data according to the received response message for the data
  • the second mode used by at least a part of the data in .
  • the network device can schedule the terminal according to the current resource utilization of various data transmission modes or the network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data.
  • the resource utilization rate of each data transmission mode can also be improved.
  • the terminal may send data to the network device in the first manner, and in the case of data transmission failure, determine the second manner in which the terminal retransmits at least a part of the data according to a preset condition. In this way, the terminal in the communication system can be prevented from retransmitting the data using the same transmission mode, thereby improving the success rate of the terminal when retransmitting the data.
  • the response message is a response message for the data received by the terminal after sending the data to the network device in the first manner;
  • the response message for the data received by the network device before the data is sent.
  • the terminal can determine the second mode according to the response message of the data sent by the terminal to the network device in the first mode this time, and the terminal can also use the first mode before sending data to the network device in the first mode this time.
  • the second mode is determined by the response message of the data sent to the network device by the mode, so that the flexibility of the terminal in determining the second mode can be improved.
  • the terminal determines, according to the received response message for the data, the second manner used by the terminal to retransmit the data, including: the first value is greater than or equal to the first threshold, the terminal determines the second mode according to the response message, and the first value is the number of times the terminal sends the data to the network device using the first mode. Based on the above method, the terminal determines the second method according to the response message only when the number of times that the terminal sends data to the network device using the first method is greater than a threshold. In this way, it can be avoided that the terminal frequently switches the transmission mode when the data transmission is unsuccessful.
  • the response message includes information of the first threshold.
  • the network device may configure the terminal for the maximum number of times that the terminal sends data to the network device in the first manner. In this way, the network device can adjust the maximum number of times the terminal sends data to the network device in the first manner according to the network performance, so as to improve transmission efficiency.
  • the response message includes first indication information, where the first indication information is used to instruct the terminal to end sending the data to the network device in the first manner.
  • the terminal may determine to end sending the data to the network device in the first manner according to the first indication information, and determine the second manner according to the response message.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the terminal may determine the second manner according to the second indication information.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the second mode determined by the terminal may be a four-step random access mode or an EDT mode. That is to say, when the terminal fails to transmit data in the two-step random access mode carrying the user plane data, the terminal can retransmit the data by using the four-step random access mode or the EDT mode.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data.
  • Step random access method when the first method is a contention-based license-free transmission method, the second method determined by the terminal may be a four-step random access method, an EDT method, a two-step random access method, or a two-step random access method carrying user plane data. access method.
  • the terminal when the terminal fails to transmit data in the contention-based license-free transmission mode, the terminal can use the four-step random access method, the EDT method, the two-step random access method, or the two-step random access method carrying user plane data. Retransmit the data.
  • the first manner is a two-step random access manner carrying user plane data
  • the response message is a response to the data received by the terminal after sending the data to the network device in the first manner message
  • the terminal determines the second manner used by the terminal to retransmit at least a part of the data according to the received response message for the data, including: if the terminal sends the data to the network device according to the response message , within the preset time, the confirmation information from the network device is not received, and the terminal determines the second mode according to the response message.
  • the terminal may first send the data to the network device according to the response message, and determine the second mode when the data sending fails. In this way, if the terminal successfully transmits the data after receiving the first indication information, the terminal may not need to determine the second mode.
  • the terminal determines, according to a preset condition, a second manner used by the terminal to retransmit at least a part of the data, including: the first value is greater than or equal to the first threshold, the terminal determines the second mode according to the preset condition; wherein, the first value is the number of times the terminal sends the data to the network device using the first mode.
  • the terminal determines the second method according to a preset condition. In this way, it can be avoided that the terminal frequently switches the transmission mode when the data transmission is unsuccessful.
  • the method further includes: the The terminal receives a response message for the data from the network device; the response message includes first indication information, where the first indication information is used to instruct the terminal to end sending the data to the network device in the first manner.
  • the terminal may determine to end sending the data to the network device in the first manner according to the first indication information, and determine the second manner according to preset conditions.
  • the first manner is a two-step random access manner carrying user plane data
  • the terminal determines a second manner used by the terminal to retransmit at least a part of the data according to a preset condition , including: if the terminal does not receive a confirmation message from the network device within a preset time after sending the data to the network device according to the response message, the terminal determines the second mode according to the preset condition.
  • the terminal may first send the data to the network device according to the response message, and determine the second mode when the data sending fails. In this way, if the terminal successfully transmits the data after receiving the first indication information, the terminal may not need to determine the second mode.
  • the first manner is a two-step random access manner carrying user plane data
  • the terminal determines a second manner used by the terminal to retransmit at least a part of the data according to a preset condition , including: the transmission block size of the data is less than or equal to the second threshold, and the second mode is the EDT mode; the transmission block size of the data is greater than or equal to the second threshold, and the second mode is the four-step random access mode.
  • the terminal may determine the second mode according to the size of the data transmission block.
  • the first manner is a contention-based license-free transmission manner
  • the terminal determines a second manner used by the terminal to retransmit at least a part of the data according to preset conditions, including: the The data transmission block size is less than or equal to the third threshold, the second method is a two-step random access method carrying user plane data; the data transmission block size is greater than or equal to the third threshold, the second method is a two-step random access method access method.
  • the terminal may determine the second mode according to the size of the data transmission block.
  • the first manner is a contention-based license-free transmission manner; the terminal determines a second manner used by the terminal to retransmit at least a part of the data according to preset conditions, including: the The received power of the reference signal measured by the terminal is greater than or equal to the fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, and the second mode is a two-step random access mode carrying user plane data; the reference measured by the terminal The signal received power is greater than or equal to the fourth threshold, and the transmission block size of the data is greater than or equal to the fifth threshold, the second mode is a two-step random access mode; the reference signal received power measured by the terminal is less than or equal to the fourth threshold , and the transport block size of the data is less than or equal to the fifth threshold, the second mode is the EDT mode; the reference signal received power measured by the terminal is less than or equal to the fourth threshold, and the transport block size of the data is greater than or equal to the fifth threshold threshold, the second mode is a
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the terminal may determine, according to the third indication information, whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • the terminal can determine, through the resource indication information, whether the terminal carries the user plane data when sending the third message according to the response message.
  • the response information may not include the third indication information, so that the load of the response message does not need to be increased.
  • an embodiment of the present application provides a method for determining a data transmission mode, the method includes: a network device receives data from a terminal in a first way; if the data reception fails, the network device sends a message to the terminal for the data to be sent to the terminal. A response message for the data, where the response message is used to instruct the terminal to determine the second mode used for retransmitting at least a part of the data.
  • the network device may receive data from the terminal in the first manner, and if the data reception fails, send to the terminal a method used to instruct the terminal to determine to retransmit at least a part of the data. The response message of the second mode.
  • the network device can schedule the terminal according to the current resource utilization of various data transmission modes or network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data.
  • the resource utilization rate of each data transmission mode can also be improved.
  • the response message includes information of the first threshold; the first threshold is the maximum number of times the terminal sends the data to the network device in the first manner.
  • the network device can configure the maximum number of times the terminal sends data to the network device in the first manner through the response message, so that the terminal determines when to determine the second method according to the maximum number of times configured by the network device.
  • the response message includes first indication information, where the first indication information is used to instruct the terminal to end sending the data to the network device in the first manner.
  • the network device may instruct the terminal to end sending data to the network device in the first manner through the first indication information in the response message.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the network device may indicate the second manner through the second indication information in the response message.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the first manner is a two-step random access manner carrying user plane data
  • the second manner may be a four-step random access manner or an EDT manner. That is, when the network device fails to receive the data in the two-step random access mode carrying the user plane data, the network device can re-receive the data by using the four-step random access mode or the EDT mode.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data.
  • Step random access method when the first method is a contention-based license-free transmission method, the second method may be a four-step random access method, an EDT method, a two-step random access method, or a two-step random access method carrying user plane data. .
  • the network device when the network device fails to receive data in the contention-based license-free transmission mode, the network device can use the four-step random access method, the EDT method, the two-step random access method, or the two-step random access method that carries the user plane data. input mode to receive the data again.
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the network device may indicate, through the third indication information in the response message, whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • the network device can implicitly indicate through the resource indication information whether the terminal carries the user plane data when sending the third message according to the response message. In this way, the load of the response message may not be increased.
  • an embodiment of the present application provides a communication device, the communication device includes: a sending module and a processing module; a sending module for sending data to a network device in a first manner; and a processing module for when the data transmission fails
  • the communication device determines the second mode used by the communication device to retransmit at least a part of the data according to the received response message for the data; or, the processing module is used to, when the data transmission fails,
  • a second manner used by the communication device to retransmit at least a part of the data is determined according to a preset condition.
  • the response message is a response message for the data received by the communication apparatus after sending the data to the network device in the first manner;
  • the response message for the data received before the data is sent to the network device by the method.
  • the processing module determines the second mode according to the response message, and the first value is the The number of times that the communication apparatus sends the data to the network device in the first manner.
  • the response message includes information of the first threshold.
  • the response message includes first indication information, where the first indication information is used to instruct the communication apparatus to end sending the data to the network device in the first manner.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data. Step random access method.
  • the first manner is a two-step random access manner carrying user plane data
  • the response message is a response message for the data received by the communication apparatus after sending the data to the network device in the first manner
  • a response message ;
  • a processing module specifically configured to determine the number of the first data according to the response message if the communication device does not receive confirmation information from the network device within a preset time after sending the data to the network device according to the response message Two ways.
  • the processing module determines the second manner according to the preset condition; wherein the first value is greater than or equal to the first threshold.
  • the value is the number of times the communication device sends the data to the network device in the first manner.
  • the communication apparatus further includes: a receiving module, configured to receive a response message for the data from the network device; the response message includes first indication information, the first indication The information is used to instruct the communication apparatus to end sending the data to the network device in the first manner.
  • the first manner is a two-step random access manner carrying user plane data
  • the processing module is specifically configured to, after the communication device sends the data to the network device according to the response message, Within a preset time, no confirmation message is received from the network device, and the second mode is determined according to the preset condition.
  • the first manner is a two-step random access manner carrying user plane data; the transmission block size of the data is less than or equal to a second threshold, and the second manner is an EDT manner; The transport block size is greater than or equal to the second threshold, and the second mode is a four-step random access mode.
  • the first manner is a contention-based license-free transmission manner; the transmission block size of the data is less than or equal to a third threshold, and the second manner is a two-step random access carrying user plane data mode; the transmission block size of the data is greater than or equal to the third threshold, and the second mode is a two-step random access mode.
  • the first manner is a contention-based license-free transmission manner; the received power of the reference signal measured by the communication device is greater than or equal to a fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, the second mode is a two-step random access mode carrying user plane data; the received power of the reference signal measured by the communication device is greater than or equal to the fourth threshold, and the transmission block size of the data is greater than or equal to the fifth threshold, the The second mode is a two-step random access mode; the received power of the reference signal measured by the communication device is less than or equal to the fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, the second mode is the EDT mode; the The received power of the reference signal measured by the communication device is less than or equal to the fourth threshold, and the transmission block size of the data is greater than or equal to the fifth threshold, and the second mode is a four-step random access mode.
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • an embodiment of the present application provides a communication device, the communication device includes: a receiving module and a sending module; a receiving module for receiving data from a terminal in a first manner; and a sending module for receiving data when data fails to receive
  • a response message for the data is sent to the terminal, where the response message is used to instruct the terminal to determine the second manner used for retransmitting at least a part of the data.
  • the response message includes information of the first threshold; the first threshold is the maximum number of times the terminal sends the data to the communication device in the first manner.
  • the response message includes first indication information, where the first indication information is used to instruct the terminal to end sending the data to the communication apparatus in the first manner.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data. Step random access method.
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • an embodiment of the present application provides a communication device, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, when the program or the instruction is executed by the processor , so that the device implements the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, and the memory is used to store a program or an instruction, when the program or instruction is executed by the processor , so that the device implements the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication device, where the device is configured to implement the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a communication device, where the device is configured to implement the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform the above-mentioned first aspect, or any possibility of the first aspect The method described in the embodiment of .
  • an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to execute the second aspect or any possibility of the second aspect.
  • an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code is run on a computer, enables the computer to execute the first aspect or any of the possible aspects of the first aspect. The method described in the embodiments.
  • an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, the computer program code enables the computer to execute the second aspect or any of the possible second aspects.
  • an embodiment of the present application provides a chip, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor , so that the chip implements the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a chip, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor , so that the chip implements the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication system.
  • the system includes the device described in the third aspect and/or the device described in the fourth aspect, or the system includes the device described in the fifth aspect and/or the device described in the sixth aspect, or the system It includes the device of the seventh aspect and/or the device of the eighth aspect.
  • any of the communication devices, chips, computer-readable media, computer program products or communication systems provided above are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be achieved. Referring to the beneficial effects in the corresponding method, details are not repeated here.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a terminal sending user plane data to a network device through a 4-step RACH mode provided by an embodiment of the present application;
  • FIG. 3 is a schematic flowchart of a terminal sending user plane data to a network device through an EDT manner according to an embodiment of the present application
  • FIG. 4A is a schematic flow chart 1 of a terminal sending user plane data to a network device in a 2-step RACH manner according to an embodiment of the present application;
  • FIG. 4B is a schematic flowchart 2 of a process that a terminal sends user plane data to a network device in a 2-step RACH manner according to an embodiment of the present application;
  • FIG. 5 is a schematic flow chart 1 of a terminal sending user plane data to a network device through a 2-step RACH mode carrying user plane data provided by the embodiment of the present application;
  • Fig. 6 is the schematic flow chart two that the terminal that the embodiment of the present application provides sends user plane data to network equipment by the 2-step RACH mode that carries user plane data;
  • FIG. 7 is a schematic flowchart of a terminal sending user plane data to a network device through a contention-based CG transmission mode according to an embodiment of the present application
  • FIG. 8 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart 1 of determining a data transmission mode according to an embodiment of the present application.
  • FIG. 10 is a second schematic flowchart of determining a data transmission mode according to an embodiment of the present application.
  • FIG. 11 is a schematic third flowchart of determining a data transmission mode according to an embodiment of the present application.
  • FIG. 12 is a fourth schematic flowchart of determining a data transmission mode provided by an embodiment of the present application.
  • FIG. 13 is a fifth schematic flowchart of determining a data transmission mode according to an embodiment of the present application.
  • FIG. 14 is a sixth schematic flowchart of determining a data transmission mode according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram 1 of a communication device provided by an embodiment of the present application.
  • FIG. 16 is a second schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 17 is a third schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • FIG. 19 is a schematic diagram of the composition of a communication system provided by an embodiment of the present application.
  • the communication system may be a long term evolution (LTE) system, a fifth generation (5G) communication system, a new radio (NR) system, a wireless-fidelity (WiFi) system , 3rd generation partnership project (3rd generation partnership project, 3GPP) related communication systems and future evolution communication systems, etc., are not limited.
  • LTE long term evolution
  • 5G fifth generation
  • NR new radio
  • WiFi wireless-fidelity
  • 3rd generation partnership project 3rd generation partnership project, 3GPP) related communication systems and future evolution communication systems, etc.
  • the following only takes the communication system 10 shown in FIG. 1 as an example to describe the method provided by the embodiment of the present application.
  • FIG. 1 it is a schematic structural diagram of a communication system 10 according to an embodiment of the present application.
  • the communication system 10 may include one or more network devices 101 (only one is shown) and terminals 102 - 104 that can communicate with the network device 101 .
  • FIG. 1 is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solutions provided in the present application.
  • a network device may provide a wireless access service for a terminal.
  • each network device corresponds to a service coverage area, and a terminal entering the area can communicate with the network device through the Uu port to receive wireless access services provided by the network device.
  • the terminal and the network device can communicate through the Uu port link.
  • the Uu interface link can be divided into uplink (uplink, UL) and downlink (downlink, DL) according to the direction of the data transmitted thereon.
  • the uplink data sent from the terminal to the network device can be transmitted on the UL, and the DL
  • the downlink data transmitted from the network device to the terminal can be transmitted on the uplink.
  • the terminal 103 is located in the coverage area of the network device 101, the network device 101 can send downlink data to the terminal 103 through DL, and the terminal 103 can send uplink data to the network device 101 through UL.
  • the network device in FIG. 1 may be any device with a wireless transceiver function. Including but not limited to: evolutionary base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, base station (gNodeB or gNB) or transmitting and receiving point (transmission receiving point/transmission receiving point, TRP) in NR, 3GPP Subsequent evolution of base stations, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc.
  • the base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, or a balloon station, etc.
  • Multiple base stations may support the above-mentioned networks of the same technology, or may support the above-mentioned networks of different technologies.
  • a base station may contain one or more co-sited or non-co-sited TRPs.
  • the network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the network device may also be a server, a wearable device, a machine communication device, or a vehicle-mounted device.
  • the following description takes the network device as the base station as an example.
  • the multiple network devices may be base stations of the same type, or may be base stations of different types.
  • the base station can communicate with the terminal, and can also communicate with the terminal through the relay station.
  • the terminal can communicate with multiple base stations of different technologies.
  • the terminal can communicate with the base station supporting the LTE network, and can also communicate with the base station supporting the 5G network, and can also support dual connection with the base station of the LTE network and the base station of the 5G network. .
  • terminal 102, terminal 103 or terminal 104 is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, an industrial control (industrial control) Terminals in China, Vehicle Terminals, Terminals in Self Driving, Terminals in Assisted Driving, Terminals in Remote Medical, Terminals in Smart Grid, Transportation Safety
  • the embodiments of the present application do not limit application scenarios.
  • a terminal may also sometimes be referred to as terminal equipment, user equipment (UE), access terminal, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile equipment, UE terminal equipment, wireless communication equipment, machine terminal, UE proxy or UE device, etc.
  • Terminals can be fixed or mobile.
  • the above-mentioned relay may be the above-mentioned network device or the above-mentioned terminal, which is not limited.
  • the terminal may be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal may be a terminal in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Machine interconnection the intelligent network of the interconnection of things and things.
  • the terminal in this application may be a terminal in machine type communication (MTC).
  • MTC machine type communication
  • the terminal of the present application may be an on-board module, on-board module, on-board component, on-board chip or on-board unit built into the vehicle as one or more components or units, and the vehicle passes through the built-in on-board module, on-board module, on-board component , on-board chip or on-board unit can implement the method of the present application.
  • terminals can send user plane data to a network device (for example, network device 101 ) through any of the following five data transmission methods: 4 -step RACH mode, EDT mode, 2-step RACH mode, 2-step RACH mode carrying user plane data, or contention-based CG transmission mode.
  • the above five data transmission methods are described below:
  • FIG. 2 is a schematic flowchart of a terminal sending user plane data to a network device through a 4-step RACH mode.
  • Sending the user plane data to the network device by the terminal in a 4-step RACH manner may include steps 201 to 207.
  • Step 201 The network device sends RACH preconfiguration information (RACH preconfigration) to the terminal.
  • RACH preconfiguration information RACH preconfigration
  • the RACH pre-configuration information includes random access parameters. For example, random access to preamble resources and the like.
  • resources in the embodiments of the present application may be transmission resources, time-frequency resources, or other forms of resources, which are not limited.
  • Step 202 The terminal receives the RACH pre-configuration information from the network device, and sends a random access request to the network device.
  • the random access request includes preamble.
  • the random access request is also referred to as the first message or message 1 (Msg1) in the random access procedure.
  • Step 203 After detecting the random access preamble sent by the terminal, the network device sends a random access response (random access response, RAR) to the terminal.
  • RAR random access response
  • the random access response is also referred to as the second message or message 2 (Msg2) in the random access process.
  • Step 204 The terminal receives the RAR from the network device, and sends uplink data to the network device.
  • the uplink data is also referred to as the third message or message 3 (Msg3) in the random access process.
  • Msg3 may include control plane data (control plane data, CP data), for example, radio resource control (radio resource control, RRC) information.
  • RRC radio resource control
  • the RRC information includes an RRC connection establishment request (RRC connection establishment request) or an RRC connection resume request (RRC connection resume request).
  • Step 205 The network device receives the uplink data from the terminal, and sends a contention resolution message to the terminal.
  • the terminal receives the contention resolution message from the network device.
  • the contention resolution message is also referred to as the fourth message or message 4 (Msg4) in the random access process.
  • the terminal receives the contention resolution message and confirms that the contention is resolved correctly, it can determine that the random access is successful, and then step 206 can be performed; otherwise, the terminal determines that the random access has failed.
  • the terminal receives the contention resolution message and confirms that the contention resolution is correct, and sends an acknowledgement (acknowledgement, ACK) message to the network device.
  • acknowledgement acknowledgement
  • the indication information of the resource of the confirmation message may be included in the above-mentioned contention resolution message.
  • Step 206 The network device sends uplink scheduling grant (UL grant) information to the terminal.
  • UL grant uplink scheduling grant
  • the uplink scheduling grant information is used to indicate the resource of the user plane data.
  • Step 207 The terminal receives the uplink scheduling grant information from the network device, and sends the user plane data to the network device.
  • the network device receives user plane data from the terminal.
  • FIG. 3 is a schematic flowchart of a terminal sending user plane data to a network device through EDT.
  • the user plane data is not sent after the random access is successful, but the user plane data is also sent when the control plane data is sent.
  • sending the user plane data to the network device by the terminal in the EDT manner may include steps 301 to 305 .
  • Step 301 The network device sends RACH preconfiguration information (RACH preconfigration) to the terminal.
  • Step 302 The terminal receives the RACH pre-configuration information from the network device, and sends a random access request to the network device.
  • Step 303 After detecting the random access preamble sent by the terminal, the network device sends the RAR to the terminal.
  • Step 304 The terminal receives the RAR from the network device, and sends uplink data to the network device.
  • the uplink data is also referred to as the third message or message 3 (Msg3) in the random access process.
  • Msg3 may include control plane data and user plane data.
  • control plane data For the introduction of the control plane data, reference may be made to the foregoing step 204 .
  • Step 305 The network device receives the uplink data from the terminal, and sends a contention resolution message to the terminal.
  • the terminal receives the contention resolution message from the network device.
  • the contention resolution message is also referred to as the fourth message or message 4 (Msg4) in the random access process.
  • the terminal receives the contention resolution message and confirms that the contention is resolved correctly, it can determine that the random access is successful; otherwise, the terminal determines that the random access has failed this time.
  • the terminal receives the contention resolution message and confirms that the contention resolution is correct, and sends a confirmation message to the network device.
  • the indication information of the resource of the confirmation message may be included in the above-mentioned contention resolution message.
  • FIG. 4A is a schematic flowchart of a terminal sending user plane data to a network device in a 2-step RACH manner.
  • Sending user plane data to the network device by the terminal in a 2-step RACH manner may include steps 401 to 405.
  • Step 401 The network device sends RACH preconfiguration information (RACH preconfigration) to the terminal.
  • the RACH pre-configuration information includes random access parameters. For example, random access to preamble resources and the like.
  • Step 402 The terminal receives the RACH pre-configuration information from the network device, and sends a random access request to the network device.
  • the random access request may also be referred to as message A (MsgA).
  • the random access request includes a random access preamble and uplink data, which is equivalent to Msg1 and Msg3 in the above-mentioned FIG. 2 , and it can also be understood that the Msg1 and Msg3 are “sent together”.
  • the uplink data here is control plane data, such as RRC information.
  • the RRC information includes an RRC connection establishment request or an RRC connection recovery request, and the like.
  • Step 403 The network device receives the random access request from the terminal, and sends a message B (MsgB) to the terminal.
  • MsgB message B
  • the terminal receives the message B from the network device.
  • the message B is a response message for the random access request, which may also be referred to as MsgB, and includes at least one of a response message for the random access preamble and a response message for uplink data.
  • the network device can detect the preamble and decode the control plane data.
  • the network device successfully detects the preamble and successfully decodes the control plane data.
  • Message B includes at least one of a response message for the random access preamble and a response message for uplink data.
  • message B may be referred to as a successful random access response (success RAR).
  • the terminal may determine that the random access is successful, and then step 404 may be performed; otherwise, the terminal determines that the random access fails this time.
  • the terminal After the terminal receives the message B and successfully demodulates it, it sends an acknowledgement (acknowledgement, ACK) message to the network device.
  • acknowledgement acknowledgement, ACK
  • the indication information of the resource of the confirmation message may be included in the above-mentioned message B.
  • Step 404 The network device sends uplink scheduling grant information to the terminal.
  • the uplink scheduling grant information is used to indicate the resource of the user plane data.
  • Step 405 The terminal receives the uplink scheduling grant information from the network device, and sends the user plane data to the network device.
  • the network device receives user plane data from the terminal.
  • the network device successfully detects the preamble but fails to decode the control plane data.
  • Message B includes a response message to the random access preamble.
  • message B may be referred to as a fallback random access response (fallback RAR).
  • the fallback random access response indicates the transmission of Msg3, for example, the fallback random access response includes indication information of transmission resources of Msg3.
  • the terminal sends Msg3 to the network device again, and Msg3 includes the above-mentioned control plane data.
  • steps 404 to 405 shown in FIG. 4A may be replaced by steps 406 to 407 .
  • Step 406 The terminal sends Msg3 to the network device.
  • Msg3 includes the above-mentioned control plane data.
  • Step 407 The network device receives the Msg3 from the terminal, and sends a contention resolution message to the terminal.
  • the network device receives the Msg3, successfully decodes the control plane data included in the Msg3, and sends a contention resolution message to the terminal.
  • the terminal receives the contention resolution message and confirms that the contention resolution is correct, it can be determined that the random access is successful.
  • the terminal After receiving the contention resolution message and confirming that the contention resolution is correct, the terminal sends a confirmation message to the network device.
  • the indication information of the resource of the confirmation message may be included in the above-mentioned contention resolution message.
  • the above steps 404 and 405 may be performed, and the terminal completes the sending of the user plane data.
  • FIG. 5 is a schematic flowchart of a terminal sending user plane data to a network device through a 2-step RACH mode that carries user plane data.
  • the user plane data is not sent after the random access is successful, but the user plane data is also sent when the control plane data is sent.
  • the terminal sending the user plane data to the network device in a 2-step RACH manner carrying the user plane data may include steps 501 to 503.
  • Step 501 The network device sends RACH preconfiguration information (RACH preconfigration) to the terminal.
  • Step 502 The terminal receives the RACH pre-configuration information from the network device, and sends a random access request to the network device.
  • the random access request may also be referred to as message A (MsgA).
  • the random access request includes a random access preamble and uplink data, which are equivalent to Msg1 and Msg3 in the above-mentioned FIG. 3 , that is, the uplink data includes both control plane data and user plane data.
  • Step 503 The network device receives the random access request from the terminal, and sends a message B (MsgB) to the terminal.
  • MsgB message B
  • the message B is a response message for the random access request, which may also be referred to as MsgB, and includes at least one of a response message for the random access preamble and a response message for uplink data.
  • the network device can detect the preamble and decode the user plane data.
  • the network device successfully detects the preamble and successfully decodes the user plane data.
  • Message B includes at least one of a response message for the random access preamble and a response message for uplink data.
  • message B may be referred to as a successful random access response (success RAR).
  • the network device successfully detects the preamble but fails to decode the user plane data.
  • Message B includes a response message to the random access preamble.
  • message B may be referred to as a fallback random access response (fallback RAR).
  • the terminal receives the message B from the network device.
  • the terminal sends a confirmation message to the network device to confirm that the random access is successful.
  • the fallback random access response indicates the transmission of Msg3, for example, the fallback random access response includes indication information of the resources of Msg3.
  • the terminal sends Msg3 to the network device again, and Msg3 includes the above-mentioned user plane data.
  • the method shown in FIG. 5 further includes step 504 and step 505 .
  • Step 504 The terminal sends Msg3 to the network device.
  • Msg3 includes the above-mentioned user plane data.
  • Step 505 The network device receives the Msg3 from the terminal, and sends a contention resolution message to the terminal.
  • the network device receives the Msg3, successfully decodes the user plane data included in the Msg3, and sends a contention resolution message to the terminal.
  • the terminal receives the contention resolution message and confirms that the contention is resolved correctly, it can determine that the random access is successful; otherwise, the terminal determines that the random access has failed this time.
  • the terminal After receiving the contention resolution message and confirming that the contention resolution is correct, the terminal sends a confirmation message to the network device.
  • the indication information of the resource of the confirmation message may be included in the above-mentioned contention resolution message.
  • FIG. 7 is a schematic flowchart of a terminal sending user plane data to a network device through a contention-based CG transmission manner.
  • the terminal sending the user plane data to the network device through the contention-based CG transmission mode may include steps 701 to 702 .
  • Step 701 The terminal determines resources for transmitting user plane data.
  • the network device is configured with a license-free transmission (configured grant transmission, or grant-free transmission) for the terminal.
  • the network device may configure a resource pool for transmitting user plane data for the terminal, and when user plane data arrives at the terminal, the terminal determines resources in the resource pool for transmitting user plane data. Further, when user plane data arrives at the terminal, and when the TA is not timed out or valid, the terminal determines the resource for transmitting the user plane data in the resource pool.
  • DMRS demodulation reference signal
  • Step 702 The terminal sends user plane data to the network device through the resource.
  • the network device receives user plane data from the terminal.
  • the network device After receiving the user plane data from the terminal, the network device will detect the DMRS and decode the user plane data.
  • Network equipment may have the following three situations when detecting DMRS and decoding:
  • Case 1 The network device successfully detects the DMRS and successfully decodes the user plane data, and sends a confirmation message to the terminal to confirm that the user plane data is successfully demodulated.
  • Case 2 The network device successfully detects the DMRS, but fails to decode the user plane data, and will send a response message to the terminal based on the DMRS.
  • the response message may be used to indicate or schedule the transmission of the user plane data to the terminal.
  • the response message may be borne on a physical downlink control channel (physical downlink control channel, PDCCH); or, the response message may be borne on a PDCCH and a physical downlink shared channel (physical downlink shared channel, PDSCH).
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • Case 3 The network device fails to detect the DMRS and fails to decode the user plane data, and the network device neither sends an acknowledgment message nor a response message.
  • the terminal in 4-step RACH mode transmits user plane data after four signaling interactions; the terminal in EDT mode carries user plane data during the third signaling interaction among the four signaling; 2- The terminal in step RACH mode transmits user plane data after two signaling exchanges; the terminal in 2-step RACH mode carrying user plane data carries user plane data in the first signaling interaction in the two signaling; based on contention
  • the terminal in the CG transmission mode directly determines resources in the resource pool, and sends user plane data to the network device through the determined resources. From this, it can be known that the data transmission delay of the 2-step RACH mode carrying user plane data and the data transmission delay of the contention-based CG transmission mode are smaller among the above five methods.
  • the resources used for transmitting user plane data in each method are limited. Therefore, in the communication system shown in FIG. User plane data transmission fails due to resource collision or congestion.
  • the terminal will try to retransmit the user plane data using the current data transmission mode. For example, if the terminal initially uses the contention-based CG transmission mode to transmit user plane data, when the data transmission fails, the terminal may continue to try to select the contention-based CG transmission mode for data transmission. In this case, the terminal also fails transmission again due to resource collision or congestion.
  • an embodiment of the present application provides a method for determining a data transmission mode.
  • the method includes: a terminal sends data to a network device in a first manner; in the case that the data transmission fails, the terminal according to the received data for the data The response message determines the second mode used by the terminal to retransmit at least a part of the data; or, in the case that the data transmission fails, the terminal determines the method used by the terminal to retransmit at least a part of the data according to a preset condition Second way.
  • the communication system 10 shown in FIG. 1 is only used for example, and is not used to limit the technical solution of the present application. Those skilled in the art should understand that in the specific implementation process, the communication system 10 may also include other devices, and the number of network devices and terminals may also be determined according to specific needs, which is not limited.
  • each network element in FIG. 1 in the embodiment of the present application may be a functional module in one device.
  • the functional module can be an element in a hardware device, for example, a communication chip or a communication component in a terminal or a network device, or a software functional module running on hardware, or a platform (for example, a cloud Virtualization functions instantiated on the platform).
  • FIG. 8 is a schematic diagram of a hardware structure of a communication device applicable to an embodiment of the present application.
  • the communication device 800 includes at least one processor 801 , a communication line 802 , a memory 803 and at least one communication interface 804 .
  • the processor 801 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 802 may include a path, such as a bus, to transfer information between the components described above.
  • Communication interface 804 using any transceiver-like device, for communicating with other devices or communication networks, such as Ethernet interfaces, radio access network (RAN), wireless local area networks (wireless local area networks, WLAN), etc.
  • RAN radio access network
  • WLAN wireless local area networks
  • Memory 803 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types of storage devices that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, CD-ROM storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation.
  • the memory may exist independently and be connected to the processor through communication line 802 .
  • the memory can also be integrated with the processor.
  • the memory provided by the embodiments of the present application may generally be non-volatile.
  • the memory 803 is used for storing the computer-executed instructions involved in executing the solution of the present application, and the execution is controlled by the processor 801 .
  • the processor 801 is configured to execute the computer-executed instructions stored in the memory 803, so as to implement the method provided by the embodiments of the present application.
  • the computer-executed instructions in the embodiment of the present application may also be referred to as application code, which is not specifically limited in the embodiment of the present application.
  • the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8 .
  • the communication apparatus 800 may include multiple processors, for example, the processor 801 and the processor 807 in FIG. 8 .
  • processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the communication apparatus 800 may further include an output device 805 and an input device 806 .
  • the output device 805 is in communication with the processor 801 and can display information in a variety of ways.
  • the output device 805 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • Input device 806 is in communication with processor 801 and can receive user input in a variety of ways.
  • the input device 806 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.
  • the above-mentioned communication apparatus 800 may be a general-purpose device or a dedicated device.
  • the communication apparatus 800 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in FIG. 8 . equipment.
  • PDA personal digital assistant
  • This embodiment of the present application does not limit the type of the communication apparatus 800 .
  • the terminal and/or the network device may perform some or all of the steps in the embodiments of the present application, these steps are only examples, and the embodiments of the present application may also perform other steps or variations of various steps .
  • various steps may be performed in different orders presented in the embodiments of the present application, and it may not be necessary to perform all the steps in the embodiments of the present application.
  • the specific structure of the execution body of the method for determining the data transmission mode is not particularly limited in the embodiment of the present application, as long as the program that records the code of the method for determining the data transmission mode in the embodiment of the present application can be executed,
  • the communication can be performed by the method for determining the data transmission mode according to the embodiment of the present application.
  • the execution subject of the method for determining the data transmission mode provided by the embodiment of the present application may be a terminal, or a component applied in the terminal, for example, chip, which is not limited in this application.
  • the execution subject of the method for determining a data transmission mode provided by the embodiment of the present application may be a network device, or a component applied in the network device, such as a chip, which is not limited in this application.
  • the execution subject of the method for determining the data transmission mode is a terminal and a network device as an example for description.
  • the method for determining the data transmission mode provided by the embodiment of the present application is introduced by taking the first mode as a 2-step RACH mode carrying user plane data, and the second mode as a 4-step RACH mode or an EDT mode.
  • a method for determining a data transmission mode is provided in an embodiment of the present application, and the method for determining a data transmission mode includes steps 901 to 903 .
  • Step 901 The terminal sends data to the network device in a 2-step RACH manner carrying user plane data.
  • the terminal may be any terminal in the terminal 102 to the terminal 104 in FIG. 1 .
  • the network device is the network device 101 in FIG. 1 .
  • the data includes user plane data and control plane data.
  • the process of sending data to the network device by the terminal using the 2-step RACH mode that carries the user plane data may refer to the description in the above-mentioned FIG. 5 or FIG. 6, and will not be repeated.
  • the network device receives data from the terminal.
  • Step 902 In the case that the data reception fails, the network device sends a response message for the data to the terminal.
  • the data receiving failure may mean that the network device receives the data sent by the terminal, but decodes all or part of the data incorrectly (for example, the network device detects the preamble correctly, and decodes the user plane data incorrectly). It can be understood that, when the network device detects the preamble correctly, and decodes the user plane data incorrectly, the network device sends a response message for the preamble to the terminal.
  • the response message may be used to instruct the terminal to determine the second manner used for retransmitting at least a part of the data.
  • the response message is used to instruct the terminal to determine the second manner used for retransmitting the user plane data in the data.
  • the second mode may be a 4-step RACH mode or an EDT mode.
  • the response message is the fallback random access response in FIG. 5 or FIG. 6 .
  • the response message includes at least one of the following information: first indication information, second indication information, third indication information or information of the first threshold.
  • the first indication information is used to instruct the terminal to end sending the data to the network device in a 2-step RACH manner carrying user plane data.
  • the first indication information is 1-bit indication information.
  • the first indication information instructs the terminal to end sending the data to the network device in a 2-step RACH manner carrying user plane data.
  • the first indication information includes a special character string or special character.
  • the first indication information instructs the terminal to end sending the data to the network device in a 2-step RACH manner carrying user plane data.
  • the second indication information is used to indicate the second mode.
  • the second indication information indicates the second mode through 1-bit indication information.
  • the second indication information indicates the second mode through 1-bit indication information.
  • the second indication information includes the identifier of the second mode. Taking the identification of the 4-step RACH mode as ID 1 and the identification of the EDT mode as ID 2 as an example, when the second indication information includes ID 1, the second mode indicated by the second indication information is the 4-step RACH mode, and the second indication When the information includes ID 2, the second mode indicated by the second indication information is the EDT mode.
  • the third indication information is used to indicate whether the terminal carries user plane data when sending the Msg3 according to the response message.
  • the third indication information is used to indicate whether the Msg3 in step 504 carries user plane data, in this case, the response message may be the message B in step 503 .
  • the third indication information is 1-bit indication information.
  • the third indication information indicates that when the terminal sends Msg3 according to the response message, the user plane data is carried, and when the third indication information is 1, the third indication information indicates that when the terminal sends Msg3 according to the response message, it does not Carry user plane data and vice versa.
  • the third indication information includes special character strings or special characters.
  • the third indication information indicates that when the terminal sends Msg3 according to the response message, the user plane data is carried, and when the third indication information includes N, the third indication information indicates that when the terminal sends Msg3 according to the response message, it does not Carry user plane data.
  • the terminal sends the user plane data to the network device after the random access succeeds.
  • the third indication information may also be used to indicate the second manner. For example, if the third indication information instructs the terminal to send the Msg3 according to the response message, it carries the user plane data, and the third indication information also indicates that the second mode is the EDT mode; if the third indication information instructs the terminal to send the Msg3 according to the response message, it does not carry the user plane data. User plane data, the third indication information also indicates that the second mode is the 4-step RACH mode.
  • the information of the first threshold is used to indicate the first threshold.
  • the first threshold is the maximum number of times that the terminal sends the data to the network device in a 2-step RACH mode that carries user plane data.
  • the information of the first threshold includes an index of the first threshold; or, the information of the first threshold includes the first threshold.
  • the first threshold is a positive integer greater than 0.
  • the above description of the first indication information, the second indication information, the third indication information or the information of the first threshold is only the first indication information, the second indication information, the third indication information or the first threshold.
  • the first indication information, the second indication information, the third indication information or the information of the first threshold may also be in other forms, which are not limited.
  • the network device may indicate the second indication information implicitly.
  • the response message may not include the second indication information, so that the load of the response message may not be increased.
  • the second mode is associated with a physical random access channel (physical random access channel, PRACH) resource or a preamble sequence. Among them, PRACH is used to transmit random access requests.
  • the preamble sequence of group A is associated with the EDT mode
  • the preamble sequence of group B is associated with the 4-step RACH mode as an example
  • the network device may indicate the third indication information implicitly, and in this case, the response message may not include the third indication information. In this way, the load of the response message can not be increased.
  • the third indication information is resource indication information.
  • the resource indication information is used to indicate the resource of the data in step 901 .
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries user plane data when sending Msg3 according to the response message; or, the transport block size (TBS) indicated by the resource indication information is used to determine the terminal Whether to carry user plane data when sending Msg3 according to the response message.
  • the size of the resource indicated by the resource indication information of the uplink data (physical uplink shared channel (PUSCH)) included in the response message is less than or equal to a threshold value, then it can be determined that the terminal sends according to the response message.
  • the user plane data is carried; the size of the resource indicated by the resource indication information of the uplink data (PUSCH) included in the response message is greater than or equal to a threshold value, then it can be determined later that when the terminal sends Msg3 according to the response message, it does not carry User plane data.
  • the size of the transport block indicated by the resource indication information of the uplink data (PUSCH) included in the response message is less than or equal to a threshold value, then it can be determined that the terminal carries user plane data when sending Msg3 according to the response message; the response message The size of the transport block indicated by the resource indication information of the uplink data (PUSCH) included in the PUSCH is greater than or equal to a threshold value, then it can be determined that the terminal does not carry user plane data when sending Msg3 according to the response message.
  • the second manner indicated by the network device may be determined according to the detected network state. For example, when the network device detects that the resource utilization rate of the 4-step RACH mode is greater than or equal to a threshold value, the second mode indicated by the network device is the EDT mode; the resource utilization rate of the EDT mode detected by the network device is greater than or equal to one When the threshold value is set, the second mode indicated by the network device is the 4-step RACH mode.
  • Step 903 The terminal receives the response message from the network device, and in the case of data transmission failure, determines the second mode according to the response message.
  • the response message does not include the first indication information.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • the first value is the number of times that the terminal sends the above data to the network device in a 2-step RACH manner that carries user plane data.
  • the first threshold is preconfigured, for example, the first threshold is defined in a standard; or the first threshold is configured by the network device, for example, the network device configures the first threshold by using the first threshold information in the response message.
  • step 901 is the second time that the terminal uses a 2-step RACH mode that carries user plane data to send data to the network device.
  • the terminal After receiving the response message, the terminal sends the Msg3 including the user plane data to the network device according to the response message. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the terminal knows that This data transfer failed.
  • the terminal adds 1 to the first value, and the first value after adding 1 is 3.
  • the terminal uses the 2-step RACH mode carrying the user plane data for the third time to send the data to the network device.
  • the Msg3 including the user plane data is sent to the network device according to the response message. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device, but confirms that the contention resolution failed, the terminal knows that this data transmission has occurred Fail.
  • the terminal adds 1 to the first value, the first value after adding 1 is 4, and the first value is greater than the first threshold.
  • the terminal determines the second mode according to the response message, and the subsequent terminal uses the second mode to send the data to the network device.
  • the response message includes first indication information
  • the terminal determines according to the first indication information to end sending data to the network device in a 2-step RACH manner carrying user plane data. Subsequently, the terminal determines the second mode according to the response message. That is, when the response message includes the first indication information, regardless of whether the first value is greater than or equal to the first threshold, the terminal determines to end sending data to the network device using the 2-step RACH mode that carries user plane data.
  • the terminal may immediately determine the second mode according to the response message. That is, after receiving the response message, the terminal does not perform steps 504 and 505, but directly determines the second mode according to the response message.
  • step 901 is the second time that the terminal uses a 2-step RACH mode that carries user plane data to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal determines to end sending data to the network device in the 2-step RACH mode carrying the user plane data, and determines the second mode according to the response message.
  • the terminal may also send the above data to the network device according to the response message. If the terminal does not receive confirmation information (eg, a contention resolution message) from the network device within a preset time after sending the above data to the network device according to the response message, the terminal determines the second mode according to the response message. That is to say, after receiving the response message, the terminal performs steps 504 and 505, and determines the second mode according to the response message if the data has not been successfully transmitted.
  • confirmation information eg, a contention resolution message
  • step 901 is the second time that the terminal uses a 2-step RACH mode that carries user plane data to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal sends the Msg3 including the user plane data to the network device according to the response message. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the terminal determines End using the 2-step RACH mode carrying user plane data to send data to the network device, and determine the second mode according to the response message.
  • the terminal receives a contention resolution message from the network device within a preset time after sending the Msg3 to the network device, and confirms that the contention resolution is successful, it means that the terminal successfully sends the data to the network device, The terminal does not need to send the data again.
  • Case 1 The response message includes the second indication information.
  • the terminal determines that the second mode is the 4-step RACH mode; when the second indication information is 1, The terminal determines that the second mode is the EDT mode, and vice versa.
  • the terminal determines that the second The mode is the 4-step RACH mode, and when the second indication information includes ID 2, the terminal determines that the second mode is the EDT mode.
  • Case 2 The response message includes the third indication information.
  • the third indication information As 1-bit indication information as an example, when the third indication information is 0, the third indication information instructs the terminal to carry user plane data when sending Msg3 according to the response message, and the second mode is the EDT mode.
  • the third indication information When the third indication information is 1, the third indication information indicates that the terminal does not carry user plane data when sending Msg3 according to the response message, and the second mode is a 4-step RACH mode, and vice versa.
  • the third indication information including a special character string or special character
  • the third indication information indicates that the terminal carries user plane data when sending Msg3 according to the response message
  • the second method is: EDT mode
  • the third indication information indicates that the terminal does not carry user plane data when sending Msg3 according to the response message
  • the second mode is the 4-step RACH mode.
  • the terminal may also determine the second mode according to the PRACH resource or the preamble sequence.
  • the third indication information indicates whether the terminal carries user plane data when sending the Msg3 according to the response message, but does not indicate the second mode.
  • Case 3 The response message includes the second indication information and the third indication information.
  • the terminal determines that the second mode is 4-step RACH. mode; when the second indication information is 1, the terminal determines that the second mode is the EDT mode, and vice versa.
  • the third indication information instructs the terminal to carry user plane data when sending Msg3 according to the response message, and when the third indication information is 1, the third indication information instructs the terminal to send Msg3 according to the response message, without carrying the user plane data face data, and vice versa.
  • Case 4 The response message does not include the second indication information and the third indication information.
  • the response message includes the first indication information, and/or the information of the first threshold.
  • the terminal may determine the second manner according to the PRACH resource or the preamble sequence. For details, refer to the corresponding description in the second indication information by the network device implicitly indicating the second indication information in the foregoing step 902 .
  • the terminal may determine, according to the size of the resource indicated in the resource indication information, whether the terminal carries user plane data when sending the Msg3 according to the response message, and the second manner.
  • the resource indication information For the description of the resource indication information, reference may be made to the description in step 902 above.
  • the terminal determines that when the terminal sends the Msg3 according to the response message, it carries the user plane data, and the first The second mode is the EDT mode; the size of the resource indicated by the resource indication information of the uplink data (PUSCH) included in the response message is greater than or equal to a threshold value, then the terminal determines that when the terminal sends Msg3 according to the response message, it does not carry user plane data , and the second mode is the 4-step RACH mode.
  • the terminal determines that when the terminal sends the Msg3 according to the response message, it carries the user plane data, and the first The second mode is the EDT mode; the size of the transport block indicated by the resource indication information of the uplink data (PUSCH) included in the response message is greater than or equal to a threshold value, then the terminal determines that when the terminal sends Msg3 according to the response message, it does not carry user plane data , and the second mode is the 4-step RACH mode.
  • the terminal can send data to the network device in a 2-step RACH mode that carries user plane data, receive a response message for the data from the network device, and in the case of data transmission failure, according to the The response message determines the second manner used by the terminal to retransmit at least a part of the data.
  • the network device can schedule the terminal according to the current resource utilization of various data transmission modes or the network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data.
  • the resource utilization rate of each data transmission mode can also be improved.
  • the terminal determines the second mode according to the response message for the data received after step 901 .
  • the terminal may not receive a response message for the data within a preset time.
  • the terminal receives a response message for the data, that is, before step 901, the terminal uses a 2-step RACH mode that carries user plane data to send the data to the network device , and receives a response message for the data, and the terminal may also determine the second mode according to the response message.
  • the method for determining a data transmission mode includes steps 1001 to 1004 .
  • Step 1001 The terminal sends data to the network device in a 2-step RACH manner carrying user plane data.
  • step 100 For the specific process of step 1001, reference may be made to the above-mentioned step 901, which will not be repeated.
  • Step 1002 In the case that the data reception fails, the network device sends a response message for the data to the terminal.
  • the failure to receive data may refer to that the network device receives the data, but decodes the user plane data incorrectly.
  • the response message may be used to instruct the terminal to determine the second manner used for retransmitting at least a part of the data.
  • the response message is used to instruct the terminal to determine the second manner used for retransmitting the user plane data in the data.
  • the second mode may be a 4-step RACH mode or an EDT mode.
  • the response message is the fallback random access response in FIG. 5 .
  • the response message includes at least one of the following information: second indication information, third indication information, or information of the first threshold.
  • second indication information for the introduction of the second indication information, the third indication information and the information of the first threshold, reference may be made to the above step 902, which will not be repeated.
  • the terminal receives the response message from the network device.
  • the terminal receives the response.
  • the Msg3 including the user plane data is sent to the network device according to the response message. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the first The value is incremented by 1. If the first value after adding 1 is smaller than the first threshold, the terminal executes the following step 1003.
  • the terminal determines the second mode according to the response message. For details, refer to step 903 above. If the terminal receives a contention resolution message from the network device within a preset time after sending the Msg3 to the network device, and confirms that the contention resolution is successful, the user plane data transmission is successful.
  • the terminal sends the network device without the user plane data according to the response message. Msg3. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the first The value is incremented by 1. If the first value after adding 1 is smaller than the first threshold, the terminal executes the following step 1003.
  • the terminal determines the second mode according to the response message. For details, refer to step 903 above. If the terminal receives the contention resolution message from the network device within a preset time after sending Msg3 to the network device, and confirms that the contention resolution is successful, the terminal receives the uplink scheduling authorization information from the network device, and sends the message to the network device according to the uplink scheduling authorization information. The network device sends user plane data. If the terminal does not receive an acknowledgment message from the network device within a preset time after sending user plane data to the network device; or, if the terminal receives a negative acknowledgement (NACK) message from the network device within a preset time, the first The value is incremented by 1.
  • NACK negative acknowledgement
  • the terminal performs the following step 1003; if the first value after adding 1 is greater than or equal to the first threshold, the terminal determines the second mode according to the response message. For details, refer to as described in step 903 above. If the terminal receives the confirmation message from the network device within a preset time after sending the user plane data to the network device, the user plane data is transmitted successfully.
  • Step 1003 The terminal sends data to the network device in a 2-step RACH manner carrying user plane data.
  • step 1003 For the specific process of step 1003, reference may be made to the above-mentioned step 901, which will not be repeated.
  • step 1003 is the same as the data in step 1001; or, the data in step 1003 is a part of the data in step 1001.
  • step 1003 the terminal does not receive a response message for the data from the network device within a preset time.
  • Step 1004 In the case of data transmission failure, the terminal determines the second mode according to the response message.
  • the response message may be the response message in step 1002 .
  • the response message can also be a response message for the data received by the terminal before step 1001, that is, before step 1001, the terminal sends the data to the network device in a 2-step RACH manner carrying user plane data, and A response message for this data is received.
  • step 1001 is the second time the terminal sends the data to the network device in a 2-step RACH mode that carries user plane data.
  • the terminal uses a 2-step RACH mode that carries user plane data for the first time to send the data to the network device The data is sent, and a response message for the data is received from the network device.
  • the terminal may determine the second mode according to the response message in step 1002, and the terminal may also determine the second mode according to the response message received before step 1001.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • Case 1 The response message includes the second indication information.
  • Case 2 The response message includes the third indication information.
  • Case 3 The response message includes the second indication information and the third indication information.
  • Case 4 The response message does not include the second indication information and the third indication information.
  • the response message includes information of the first threshold.
  • the terminal can use the 2-step RACH mode carrying the user plane data for multiple times to send data to the network device. Therefore, it is possible for the terminal to receive response messages for the data from the network device multiple times. Subsequently, when the first value is greater than or equal to the first threshold, the terminal may determine the second manner used by the terminal to retransmit at least a part of the data according to the response message received at any time. In this way, the network device can schedule the terminal according to the current resource utilization of various data transmission modes or the network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data. In addition, through the scheduling of the network equipment, the resource utilization rate of each data transmission mode can also be improved.
  • the terminal determines the second mode according to the received response message for data.
  • the terminal may not receive the response message; or, the terminal receives the response message, but the response message does not include information for determining the second mode.
  • the terminal may determine the second manner used by the terminal to retransmit at least a part of the data according to a preset condition.
  • the method for determining a data transmission mode includes steps 1101 to 1102 .
  • Step 1101 The terminal sends data to the network device in a 2-step RACH manner carrying user plane data.
  • step 110 For the specific process of step 1101, reference may be made to the description in step 901 above.
  • the terminal does not receive a response message for the data from the network device within a preset time; or, after step 1101, the terminal receives a response from the network device for the data within a preset time. message, but the response message does not include information for determining the second mode.
  • the response message includes the first indication information, and/or the information of the first threshold value.
  • Step 1102 In the case of data transmission failure, the terminal determines the second mode according to a preset condition.
  • the terminal does not receive a response message within a preset time; or, the terminal receives a response message, but the response message does not include the first indication information.
  • the terminal determines the second mode according to the preset condition, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the preset condition.
  • the first value is the number of times that the terminal sends the above data to the network device in a 2-step RACH manner that carries user plane data.
  • the first threshold is preconfigured, for example, the first threshold is defined in a standard; or the first threshold is configured by the network device, for example, the network device configures the first threshold by using the first threshold information in the response message.
  • step 1001 is the second time that the terminal uses a 2-step RACH mode carrying user plane data to send data to the network device.
  • the terminal does not receive a response message; or, the terminal receives a fallback random access response, but the fallback random access response does not include the information for determining the second mode, and the terminal attempts to send to the network device Msg3 including user plane data.
  • the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the terminal knows that This data transfer failed.
  • the terminal adds 1 to the first value, and the first value after adding 1 is 3.
  • the terminal uses the 2-step RACH mode carrying the user plane data for the third time to send the data to the network device. Similarly, the terminal does not receive the data within the preset time.
  • a response message is received; or, the terminal receives a fallback random access response, but the fallback random access response does not include information for determining the second mode, and the terminal attempts to send Msg3 including user plane data to the network device. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device, but confirms that the contention resolution failed, the terminal knows that this data transmission has occurred Fail. The terminal adds 1 to the first value, and the first value after adding 1 is 4. The first value is greater than the first threshold. At this time, the terminal determines the second mode according to the preset condition, and the terminal sends the data to the network device in the second mode subsequently.
  • the terminal receives a response message, and the response message includes the first indication information. After receiving the response information, the terminal determines to end the 2-step RACH mode carrying user plane data according to the first indication information. Network devices send data. Subsequently, the terminal determines the second mode according to the preset condition. That is, when the response message includes the first indication information, regardless of whether the first value is greater than or equal to the first threshold, the terminal determines to end sending data to the network device using the 2-step RACH mode that carries user plane data.
  • the terminal may immediately determine the second mode according to the preset condition. That is, after receiving the response message, the terminal does not perform steps 504 and 505, but directly determines the second mode according to the preset condition.
  • step 1001 is the second time that the terminal uses a 2-step RACH mode carrying user plane data to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal determines to end sending data to the network device using the 2-step RACH mode carrying user plane data, and determines the second mode according to preset conditions.
  • the terminal may also send the above data to the network device according to the response message. If the terminal does not receive confirmation information (eg, a contention resolution message) from the network device within a preset time after sending the above data to the network device according to the response message, the terminal determines the second mode according to the preset condition. That is to say, after receiving the response message, the terminal executes steps 504 and 505, and determines the second mode according to preset conditions when the data has not been successfully transmitted.
  • confirmation information eg, a contention resolution message
  • step 1001 is the second time that the terminal uses a 2-step RACH mode carrying user plane data to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal sends the Msg3 including the user plane data to the network device according to the response message. If the terminal does not receive a contention resolution message from the network device within a preset time after sending Msg3 to the network device; or, if the terminal receives a contention resolution message from the network device within a preset time, but confirms that the contention resolution fails, the terminal determines End using the 2-step RACH mode that carries user plane data to send data to the network device, and determine the second mode according to preset conditions.
  • the terminal receives a contention resolution message from the network device within a preset time after sending the Msg3 to the network device, and confirms that the contention resolution is successful, it means that the terminal successfully sends the data to the network device, The terminal does not need to send the data again.
  • the terminal determines the second mode according to a preset condition, including: the data transmission block size is less than or equal to the second threshold, and the second mode is the EDT mode; the data transmission block size is greater than or equal to the second threshold, the second mode For 4-step RACH mode.
  • the second threshold is a positive number.
  • the data size that can be carried by the Msg3 in the EDT mode is limited.
  • the data size that the Msg3 can carry is 56 bits or 72 bits. Therefore, when the transmission block size of the data is larger than 56 bits or 72 bits, Msg3 cannot carry it, and the data can be retransmitted by 4-step RACH.
  • the second threshold value of 56 bits if the transport block size of the data is 60 bits, the second mode determined by the terminal is the 4-step RACH mode; if the transport block size of the data is 35 bits, the terminal The determined second mode is the EDT mode.
  • the terminal can send data to the network device in a 2-step RACH manner that carries user plane data, and in the case of data transmission failure, the terminal can determine to retransmit at least one of the data according to the preset condition.
  • the second method used by a portion of the data In this way, the terminal in the communication system can be prevented from retransmitting the data using the same transmission mode, thereby improving the success rate of the terminal when retransmitting the data.
  • the terminal sends data to the network device in a 2-step RACH mode that carries user plane data, and in the case of data transmission failure, it can also be used.
  • the second mode is determined according to other modes.
  • the terminal may determine the second manner according to a predefined or preconfigured manner.
  • the pre-defined or pre-configured mode means that the second mode is defined in the standard; or, the second mode is pre-configured by the network device.
  • the pre-defined or pre-configured mode may be the EDT mode or the 4-step RACH mode.
  • the terminal uses a 2-step RACH mode that carries user plane data to send data to the network device, and within the preset time, the terminal does not receive a response message; or , the terminal receives the response message, but the response message does not include the information for indicating the second mode and the above-mentioned first indication information, and when the first value is greater than or equal to the first threshold, the terminal determines that the second mode is the EDT mode.
  • the terminal adopts the 2-step RACH mode that carries user plane data to send data to the network device, and receives a response message from the network device, the When the response message includes the above-mentioned first indication information, but the response message does not include information for indicating the second mode, the terminal determines that the second mode is the 4-step RACH mode.
  • the following describes the embodiments of the present application by taking the first mode as a contention-based CG transmission mode, and the second mode as a 4-step RACH mode, an EDT mode, a 2-step RACH mode, or a 2-step RACH mode carrying user plane data as examples.
  • the first mode as a contention-based CG transmission mode
  • the second mode as a 4-step RACH mode, an EDT mode, a 2-step RACH mode, or a 2-step RACH mode carrying user plane data as examples.
  • the method for determining a data transmission mode includes steps 1201 to 1203 .
  • Step 1201 The terminal sends data to the network device using the contention-based CG transmission mode.
  • the terminal may be any terminal in the terminal 102 to the terminal 104 in FIG. 1 .
  • the network device is the network device 101 in FIG. 1 .
  • the data includes user plane data.
  • the process for the terminal to send data to the network device using the contention-based CG transmission mode may refer to the description in FIG. 7 above, which will not be repeated.
  • the network device adopts the contention-based CG transmission mode to receive data from the terminal.
  • Step 1202 In the case that the data reception fails, the network device sends a response message for the data to the terminal.
  • the failure to receive data may refer to that the network device receives the data, and the network device successfully detects the DMRS, but decodes the user plane data incorrectly.
  • the response message may be used to instruct the terminal to determine the second manner used for retransmitting the data.
  • the second mode may be a 4-step RACH mode, an EDT mode, a 2-step RACH mode, or a 2-step RACH mode that carries user plane data.
  • the response message is the response message in FIG. 7 .
  • the response message includes at least one of the following information: first indication information, second indication information, or information of the first threshold.
  • the first indication information is used to instruct the terminal to end sending the data to the network device using the contention-based CG transmission mode.
  • the first indication information is 1-bit indication information.
  • the first indication information indicates that the terminal ends sending the data to the network device by using the contention-based CG transmission mode.
  • the first indication information includes a special character string or special character.
  • the first indication information instructs the terminal to end sending the data to the network device using the contention-based CG transmission mode.
  • the second indication information is used to indicate the second mode.
  • the second indication information indicates the second mode through 2-bit indication information. For example, when the second indication information is 00, the second mode indicated by the second indication information is the 4-step RACH mode; when the second indication information is 01, the second mode indicated by the second indication information is the EDT mode; the second indication When the information is 10, the second mode indicated by the second indication information is a 2-step RACH mode; when the second indication information is 11, the second mode indicated by the second indication information is a 2-step RACH mode carrying user plane data.
  • the second indication information includes the identifier of the second mode.
  • the 4-step RACH mode as ID 1
  • the EDT mode as ID 2
  • the 2-step RACH mode as ID 3
  • the 2-step RACH mode carrying user plane data as ID 4 as an example.
  • the second indication information includes ID 1
  • the second way indicated by the second indication information is the 4-step RACH way
  • the second indication information includes ID 2
  • the second way indicated by the second indication information is the EDT way
  • the second indication information When ID 3 is included, the second mode indicated by the second instruction information is a 2-step RACH mode; when the second instruction information includes ID 4, the second mode indicated by the second instruction information is a 2-step RACH mode that carries user plane data .
  • the information of the first threshold is used to indicate the first threshold.
  • the first threshold is the maximum number of times that the terminal sends the data to the network device using the contention-based CG transmission mode.
  • the information of the first threshold includes an index of the first threshold; or, the information of the first threshold includes the first threshold.
  • the first threshold is a positive integer greater than 0.
  • first indication letter, the second indication information or the information of the first threshold is only an example of the first indication letter, the second indication information or the information of the first threshold.
  • the first indication letter, the second indication information or the information of the first threshold may also be in other forms, which are not limited.
  • the network device may indicate the second indication information implicitly.
  • the response message may not include the second indication information, so that the load of the response message may not be increased.
  • the second manner is associated with the resources in the resource pool or the DMRS resources in FIG. 7 .
  • the DMRS resources are divided into A group, B group, C group and D group by the network equipment.
  • the A group DMRS resources are associated with the EDT mode
  • the B group DMRS resources are associated with the 4-step RACH mode
  • the C group DMRS resources are associated with the 4-step RACH mode.
  • the 2-step RACH method is associated.
  • the DMRS resource of group D is associated with the 2-step RACH method that carries user plane data.
  • the subsequent terminal can determine The second mode is the EDT mode; if the terminal selects group B DMRS resources before sending the user plane data to the network device, the subsequent terminal can determine that the second mode is the 4-step RACH mode; if the terminal sends the user plane data to the network device before sending the user plane data , select group C DMRS resources, then the subsequent terminal can determine that the second mode is the 2-step RACH mode; if the terminal selects the D group DMRS resources before sending the user plane data to the network device, the subsequent terminal can determine that the second mode is the carrying 2-step RACH method for user plane data.
  • the second manner indicated by the network device may be determined according to the detected network state. For example, when the resource utilization rate of the 2-step RACH mode carrying user plane data detected by the network device is less than or equal to the first threshold value, the second mode indicated by the network device is the 2-step RACH mode carrying user plane data; When the network device detects that the resource utilization of the 2-step RACH mode is less than or equal to the second threshold value, the second mode indicated by the network device is the 2-step RACH mode; the resource utilization of the EDT mode detected by the network device is less than or equal to the second threshold.
  • the second mode indicated by the network device is the EDT mode; when the resource utilization rate of the 4-step RACH mode detected by the network device is less than or equal to the fourth threshold value, the second mode indicated by the network device is For 4-step RACH mode.
  • the first threshold value, the second threshold value, the third threshold value and the fourth threshold value may be the same or different.
  • the second mode indicated by the network device may be determined according to the usage of resources used for data transmission in the EDT mode, the 4-step RACH mode, the 2-step RACH mode, and the 2-step RACH mode carrying user plane data. .
  • the network device preferentially indicates the mode with lower resource usage rate.
  • Step 1203 The terminal receives the response message from the network device, and in the case of data transmission failure, determines the second mode according to the response message.
  • the response message does not include the first indication information.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • the first value is the number of times that the terminal sends the above-mentioned data to the network device by using the contention-based CG transmission mode.
  • the first threshold is preconfigured, for example, the first threshold is defined in a standard; or the first threshold is configured by the network device, for example, the network device configures the first threshold by using the first threshold information in the response message.
  • step 1201 is the second time that the terminal uses the contention-based CG transmission mode to send data to the network device.
  • the terminal After receiving the response message, the terminal knows that the data transmission has failed this time.
  • the terminal adds 1 to the first value. After adding 1, the first value is 3.
  • the terminal uses the contention-based CG transmission mode to send the data to the network device for the third time.
  • the terminal After receiving the response message, the terminal knows the data of this time. Transmission failed.
  • the terminal adds 1 to the first value, the first value after adding 1 is 4, and the first value is equal to the first threshold.
  • the terminal determines the second mode according to the response message, and the subsequent terminal uses the second mode to send the data to the network device.
  • the response message includes first indication information
  • the terminal determines according to the first indication information to end sending data to the network device using the contention-based CG transmission mode. Subsequently, the terminal determines the second mode according to the response message. That is, when the response message includes the first indication information, regardless of whether the first value is greater than or equal to the first threshold, the terminal determines to end using the contention-based CG transmission mode to send data to the network device.
  • step 1201 is the second time that the terminal uses the contention-based CG transmission mode to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal determines to end using the contention-based CG transmission mode to send data to the network device, and determines the second mode according to the response message.
  • Case 1 The response message includes the second indication information.
  • the terminal determines that the second mode is the 4-step RACH mode; when the second indication information is 01, The terminal determines that the second mode is the EDT mode; if the second indication information is 10, the terminal determines that the second mode is the 2-step RACH mode; when the second indication information is 11, the terminal determines that the second mode is the 2-step RACH mode that carries the user plane data. -step RACH way.
  • the identification of the 4-step RACH mode is ID 1
  • the identification of the EDT mode is ID 2
  • the identification of the 2-step RACH mode is ID 3
  • the user plane data is carried.
  • the identification of the 2-step RACH mode is ID 4 as an example, when the second instruction information includes ID 1, the terminal determines that the second mode is the 4-step RACH mode; when the second instruction information includes ID 2, the terminal determines that the second mode is EDT mode; when the second indication information includes ID 3, the terminal determines that the second mode is a 2-step RACH mode, and when the second indication information includes ID 4, the terminal determines that the second mode is a 2-step RACH mode that carries user plane data.
  • Case 2 The response message does not include the second indication information.
  • the response message includes the first indication information, and/or the information of the first threshold.
  • the terminal may determine the second manner according to the resources in the resource pool or the DMRS resources in FIG. 7 .
  • the terminal may determine the second manner according to the resources in the resource pool or the DMRS resources in FIG. 7 .
  • the terminal may determine the second manner according to the resources in the resource pool or the DMRS resources in FIG. 7 .
  • the terminal may determine the second manner according to the resources in the resource pool or the DMRS resources in FIG. 7 . For details, refer to the corresponding description in the second indication information that is implicitly indicated by the network device in step 1202 above.
  • the terminal can follow the above Figure 9, The method shown in FIG. 10 or FIG. 11 determines the manner in which the terminal retransmits the data; alternatively, the terminal may determine to use the EDT manner to retransmit the data.
  • the terminal may retransmit the data in the 4-step RACH mode.
  • the terminal can use the contention-based CG transmission mode to send data to the network device, receive a response message for the data from the network device, and in the case of data transmission failure, determine the terminal according to the response message.
  • the second way to retransmit the data In this way, the network device can schedule the terminal according to the current resource utilization of various data transmission modes or the network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data.
  • the resource utilization rate of each data transmission mode can also be improved.
  • the terminal determines the second mode according to the response message for the data received after step 1201 .
  • the terminal may not receive a response message for the data within a preset time.
  • the terminal uses the contention-based CG transmission mode to send the data to the network device, and receives For the response message for the data, the terminal may also determine the second mode according to the response message.
  • the method for determining a data transmission mode includes steps 1301 to 1304 .
  • Step 1301 The terminal sends data to the network device by using the contention-based CG transmission mode.
  • step 130 For the specific process of step 1301, reference may be made to the above-mentioned step 1201, which will not be repeated.
  • Step 1302 In the case that the data reception fails, the network device sends a response message for the data to the terminal.
  • the failure to receive data may refer to that the network device receives the data, but decodes the user plane data incorrectly.
  • the response message may be used to instruct the terminal to determine the second manner used for retransmitting the data.
  • the second mode may be a 4-step RACH mode, an EDT mode, a 2-step RACH mode, or a 2-step RACH mode carrying user plane data.
  • the response message is the response message in FIG. 7 .
  • the response message includes second indication information, and/or information about the first threshold.
  • second indication information and the information of the first threshold reference may be made to the above step 1202, which will not be repeated.
  • the terminal receives the response message from the network device.
  • the terminal receives the response message and knows that the data transmission fails this time.
  • the terminal adds 1 to the first value, and if the first value after adding 1 is smaller than the first threshold, the terminal executes the following step 1303. If the first value after adding 1 is greater than or equal to the first threshold, the terminal determines the second mode according to the response message. For details, refer to the description in step 1203 above.
  • Step 1303 The terminal sends data to the network device using the contention-based CG transmission mode.
  • step 1303 For the specific process of step 1303, reference may be made to the above-mentioned step 1201, which will not be repeated.
  • step 1303 is the same as the data in step 1301 .
  • step 1303 the terminal does not receive a response message for the data from the network device within a preset time.
  • Step 1304 In the case of data transmission failure, the terminal determines the second mode according to the response message.
  • the response message may be the response message in step 1302 .
  • the response message may also be a response message for the data received by the terminal before step 1301, that is, before step 1301, the terminal uses the contention-based CG transmission mode to send the data to the network device, and receives the data for the data before step 1301.
  • Data response message For example, in step 1301, the terminal uses the contention-based CG transmission mode to send the data to the network device for the second time. Before step 1301, the terminal uses the contention-based CG transmission mode to send the data to the network device for the first time, and receives data from the network device. The device's response message for this data. In the case of data transmission failure, the terminal may determine the second mode according to the response message in step 1302, and the terminal may also determine the second mode according to the response message received before step 1301.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • the terminal determines the second mode according to the response message, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the response message.
  • Case 1 The response message includes the second indication information.
  • Case 2 The response message does not include the second indication information.
  • the response message includes information of the first threshold.
  • the terminal can follow the above Figure 9, The method shown in FIG. 10 or FIG. 11 determines the manner in which the terminal retransmits the data; alternatively, the terminal may determine to use the EDT manner to retransmit the data.
  • the terminal may retransmit the data in the 4-step RACH mode.
  • the terminal may use the contention-based CG transmission mode to send data to the network device multiple times. Therefore, it is possible for the terminal to receive response messages for the data from the network device multiple times. Subsequently, when the first value is greater than or equal to the first threshold, the terminal may determine the second manner used by the terminal to retransmit the data according to the response message received at any time. In this way, the network device can schedule the terminal according to the current resource utilization of various data transmission modes or the network performance, and reduce the probability of failure when the terminal selects the same data transmission mode to retransmit the data. In addition, through the scheduling of the network equipment, the resource utilization rate of each data transmission mode can also be improved.
  • the terminal determines the second mode according to the received response message for data.
  • the terminal may not receive the response message; or, the terminal receives the response message, but the response message does not include information for determining the second mode.
  • the terminal may determine the second manner used by the terminal to retransmit the data according to a preset condition.
  • the method for determining a data transmission mode includes steps 1401 to 1402 .
  • Step 1401 The terminal sends data to the network device using the contention-based CG transmission mode.
  • step 140 For the specific process of step 1401, reference may be made to the description in step 1201 above.
  • the terminal does not receive a response message for the data from the network device within a preset time; or, after step 1401, the terminal receives a response from the network device for the data within a preset time. message, but the response message does not include information for determining the second mode.
  • the response message includes the first indication information and/or the information of the first threshold. For the introduction of the first indication information and the information of the first threshold, reference may be made to the above step 1202 .
  • Step 1402 In the case of data transmission failure, the terminal determines the second mode according to a preset condition.
  • the terminal within a preset time, receives a response message; or, the terminal receives a response message, but the response message does not include the first indication information.
  • the terminal determines the second mode according to the preset condition, including: the first value is greater than or equal to the first threshold, and the terminal determines the second mode according to the preset condition.
  • the first value is the number of times that the terminal sends the above-mentioned data to the network device by using the contention-based CG transmission mode.
  • the first threshold is preconfigured, for example, the first threshold is defined in a standard; or the first threshold is configured by the network device, for example, the network device configures the first threshold by using the first threshold information in the response message.
  • step 1401 is the second time that the terminal uses the contention-based CG transmission mode to send data to the network device.
  • the terminal does not receive a response message; or, the terminal receives a fallback random access response, but the fallback random access response does not include information for determining the second mode, and the terminal knows this data transmission Fail.
  • the terminal adds 1 to the first value, and the first value after adding 1 is 3.
  • the terminal uses the contention-based CG transmission mode for the third time to send the data to the network device.
  • the terminal does not receive a response message within the preset time; Alternatively, the terminal receives a fallback random access response, but the fallback random access response does not include information for determining the second mode, and the terminal knows that the data transmission fails this time.
  • the terminal adds 1 to the first value, the first value after adding 1 is 4, and the first value is greater than the first threshold. At this time, the terminal determines the second mode according to the preset condition, and the terminal sends the data to the network device in the second mode subsequently. .
  • the response message includes first indication information
  • the terminal determines according to the first indication information to end sending data to the network device using the contention-based CG transmission mode.
  • the terminal determines the second mode according to the preset condition. That is, when the response message includes the first indication information, regardless of whether the first value is greater than or equal to the first threshold, the terminal determines to end using the contention-based CG transmission mode to send data to the network device.
  • the terminal determines the second mode according to the response message.
  • step 1401 is the second time that the terminal uses the contention-based CG transmission mode to send data to the network device.
  • the terminal After receiving the response message including the first indication information, the terminal determines to end using the contention-based CG transmission mode to send data to the network device, and determines the second mode according to preset conditions.
  • the terminal determines the second mode according to preset conditions, including: the size of the data transmission block is less than or equal to the third threshold, the second mode is a 2-step RACH mode that carries user plane data; the data transmission block The size is greater than or equal to the third threshold, and the second mode is the 2-step RACH mode.
  • the third threshold is a positive number.
  • the data size that can be carried by the MsgA in the 2-step RACH mode that carries user plane data is limited.
  • the data size that the MsgA can carry is 56 bits or 72 bits. Therefore, when the transmission block size of the data is larger than 56 bits or 72 bits, the MsgA cannot be carried, and the data can be retransmitted by 2-step RACH.
  • the second mode determined by the terminal is the 2-step RACH mode; if the transport block size of the data is 30 bits, the terminal The determined second mode is a 2-step RACH mode that carries user plane data.
  • the terminal determines the second manner according to a preset condition, including: the reference signal received power (RSRP) measured by the terminal is greater than or equal to a fourth threshold, and the size of the data transmission block is less than or equal to is equal to the fifth threshold, and the second mode is a 2-step RACH mode that carries user plane data; the RSRP measured by the terminal is greater than or equal to the fourth threshold, and the transport block size of the data is greater than or equal to the fifth threshold, and the second mode is 2- step RACH mode; the RSRP measured by the terminal is less than or equal to the fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, the second mode is the EDT mode; the RSRP measured by the terminal is less than or equal to the fourth threshold, and the data transmission The block size is greater than or equal to the fifth threshold, and the second mode is the 4-step RACH mode.
  • the fourth threshold and the fifth threshold are positive numbers.
  • the terminal measures the RSRP based on
  • the value of RSRP can indicate the quality of the channel between the terminal and the network device.
  • the terminal determines that the second mode is a 2-step RACH mode or a 2-step RACH mode that carries user plane data to reduce the delay of data transmission .
  • the second mode determined by the terminal is to carry user plane data.
  • 2-step RACH mode if the RSRP measured by the terminal is 38dBm and the data transmission block size is 80 bits, the second mode determined by the terminal is 2-step RACH mode; if the RSRP measured by the terminal is 25dBm, the data transmission block size is 60 bits, then the second mode determined by the terminal is the EDT mode that carries user plane data; if the RSRP measured by the terminal is 22dBm and the data transmission block size is 75 bits, the second mode determined by the terminal is 4-step RACH.
  • the terminal can follow the above Figure 9, The method shown in FIG. 10 or FIG. 11 determines the manner in which the terminal retransmits the data; alternatively, the terminal may determine to use the EDT manner to retransmit the data.
  • the terminal may retransmit the data in the 4-step RACH mode.
  • the terminal can use the contention-based CG transmission mode to send data to the network device, and in the case of data transmission failure, determine the second mode used by the terminal to retransmit the data according to the preset condition. In this way, the terminal in the communication system can be prevented from retransmitting the data using the same transmission mode, thereby improving the success rate of the terminal when retransmitting the data.
  • the terminal uses the contention-based CG transmission mode to send data to the network device, and in the case of data transmission failure, it can also be determined according to other methods.
  • the terminal may determine the second manner according to a predefined or preconfigured manner.
  • the pre-defined or pre-configured mode means that the second mode is defined in the standard; or, the second mode is pre-configured by the network device.
  • the predefined or pre-configured manner may be a 2-step RACH manner, a 2-step RACH manner, an EDT manner or a 4-step RACH manner that carries user plane data.
  • the terminal uses the contention-based CG transmission mode to send data to the network device, and within the preset time, the terminal does not receive the data. or, when the terminal receives the response message, but the response message does not include the information for indicating the second mode and the above-mentioned first indication information, and the first value is greater than or equal to the first threshold, the terminal determines that the second mode is 2-step RACH mode that carries user plane data.
  • the terminal uses the contention-based CG transmission mode to send data to the network device, and receives a response message from the network device, where the response message includes the above.
  • the first indication information but when the response message does not include information for indicating the second mode, the terminal determines that the second mode is the 2-step RACH mode.
  • the terminal uses the contention-based CG transmission mode to send data to the network device, and within a preset time, the terminal does not receive a response message; or, the terminal receives When the response message does not include the information for indicating the second mode and the above-mentioned first indication information, and the first value is greater than or equal to the first threshold, the terminal determines that the second mode is the EDT mode.
  • the terminal uses the contention-based CG transmission mode to send data to the network device, and receives a response message from the network device, where the response message includes the above.
  • the first indication information but when the response message does not include information for indicating the second mode, the terminal determines that the second mode is the 4-step RACH mode.
  • the above-mentioned terminal or network device includes hardware structures and/or software modules corresponding to each function.
  • the unit and algorithm operations of each example described in conjunction with the embodiments disclosed herein can be implemented in hardware or in the form of a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the terminal or network device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 15 shows a schematic structural diagram of a communication device.
  • the communication device may be a terminal or a chip or a system-on-chip in the terminal, or other combined devices, components, etc. that can realize the above-mentioned terminal functions, and the communication device may be used to perform the functions of the terminal involved in the above-mentioned embodiments.
  • the communication apparatus shown in FIG. 15 includes: a sending module 1501 and a processing module 1502 .
  • the sending module may be a transmitter, which may include an antenna and a radio frequency circuit, and the like, and the processing module may be a processor, such as a baseband chip.
  • the sending module may be a radio frequency unit, and the processing module may be a processor.
  • the sending module may be an output interface of the chip system, and the processing module may be a processor of the chip system, such as a central processing unit (central processing unit, CPU).
  • the sending module 1501 is configured to send data to the network device in the first manner. For example, in conjunction with FIG. 9 , the sending module 1501 may be used to perform step 901 . For another example, in conjunction with FIG. 12 , the sending module 1501 may be used to perform step 1201 .
  • the processing module 1502 is configured to determine, according to the received response message for the data, the second mode used by the communication device to retransmit at least a part of the data in the case of the data transmission failure; or, the processing module 1502 , which is used to determine, according to a preset condition, a second manner adopted by the communication device to retransmit at least a part of the data in the case that the data transmission fails.
  • processing module 1502 may be used to perform step 903 .
  • the processing module 1502 may be used to indicate step 1102 .
  • the response message is a response message for the data received by the communication apparatus after sending the data to the network device in the first manner;
  • the response message for the data received before the data is sent to the network device by the method.
  • the processing module 1502 specifically for the first value greater than or equal to the first threshold, determines the second mode according to the response message, where the first value is The number of times the communication device sends the data to the network device in the first manner.
  • the response message includes information of the first threshold.
  • the response message includes first indication information, where the first indication information is used to instruct the communication apparatus to end sending the data to the network device in the first manner.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data. Step random access method.
  • the first manner is a two-step random access manner carrying user plane data
  • the response message is a response message for the data received by the communication apparatus after sending the data to the network device in the first manner A response message
  • the processing module 1502 is specifically configured to determine, according to the response message, if the communication device does not receive confirmation information from the network device within a preset time after sending the data to the network device according to the response message Second way.
  • the processing module 1502 specifically for the first value greater than or equal to the first threshold, determines the second manner according to the preset condition; wherein, the first value is greater than or equal to the first threshold.
  • a value is the number of times the communication device sends the data to the network device in the first manner.
  • the communication apparatus further includes: a receiving module 1503, the receiving module 1503 is configured to receive a response message for the data from the network device; the response message includes the first an indication message, where the first indication message is used to instruct the communication apparatus to end sending the data to the network device in the first manner.
  • the first manner is a two-step random access manner carrying user plane data.
  • the processing module 1502 is specifically configured to, if the communication device sends the data to the network device according to the response message, Within a preset time, no confirmation message is received from the network device, and the second mode is determined according to the preset condition.
  • the first manner is a two-step random access manner carrying user plane data; the transmission block size of the data is less than or equal to a second threshold, and the second manner is an EDT manner; The transport block size is greater than or equal to the second threshold, and the second mode is a four-step random access mode.
  • the first manner is a contention-based license-free transmission manner; the transmission block size of the data is less than or equal to a third threshold, and the second manner is a two-step random access carrying user plane data mode; the transmission block size of the data is greater than or equal to the third threshold, and the second mode is a two-step random access mode.
  • the first manner is a contention-based license-free transmission manner; the received power of the reference signal measured by the communication device is greater than or equal to a fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, the second mode is a two-step random access mode carrying user plane data; the received power of the reference signal measured by the communication device is greater than or equal to the fourth threshold, and the transmission block size of the data is greater than or equal to the fifth threshold, the The second mode is a two-step random access mode; the received power of the reference signal measured by the communication device is less than or equal to the fourth threshold, and the transmission block size of the data is less than or equal to the fifth threshold, the second mode is the EDT mode; the The received power of the reference signal measured by the communication device is less than or equal to the fourth threshold, and the transmission block size of the data is greater than or equal to the fifth threshold, and the second mode is a four-step random access mode.
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • the communication device is presented in the form of dividing each functional module in an integrated manner.
  • Module herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above.
  • the communication device may take the form shown in FIG. 8 .
  • the processor 801 in FIG. 8 may invoke the computer-executed instructions stored in the memory 803 to cause the communication apparatus to execute the method for determining the data transmission mode in the foregoing method embodiments.
  • the functions/implementation processes of the sending module 1501 , the processing module 1502 and the receiving module 1503 in FIG. 16 may be implemented by the processor 801 in FIG. 8 calling the computer-executed instructions stored in the memory 803 .
  • the function/implementation process of the processing module 1502 in FIG. 16 can be implemented by the processor 801 in FIG. 8 calling the computer-executed instructions stored in the memory 803, and the functions/implementation of the sending module 1501 and the receiving module 1503 in FIG. 16 The process may be implemented through the communication interface 804 in FIG. 8 .
  • the communication device provided in this embodiment can execute the above-mentioned method for determining a data transmission mode, reference can be made to the above-mentioned method embodiments for the technical effect that can be obtained, and details are not repeated here.
  • FIG. 17 shows a schematic structural diagram of a communication device.
  • the communication device can be a network device or a chip or a system-on-chip in the network device, or other combined devices, components, etc. that can realize the functions of the above-mentioned network device, and the communication device can be used to perform the functions of the network device involved in the above-mentioned embodiments.
  • the communication apparatus shown in FIG. 17 includes: a receiving module 1701 and a sending module 1702 .
  • the receiving module 1701 is configured to receive data from the terminal in the first manner. For example, in conjunction with FIG. 9 , the receiving module 1701 is configured to perform step 901 . For another example, with reference to FIG. 12 , the receiving module 1701 is configured to perform step 1201 .
  • the sending module 1702 is configured to send a response message for the data to the terminal in the case of failure to receive the data, where the response message is used to instruct the terminal to determine the second mode used for retransmitting at least a part of the data.
  • the sending module 1702 is configured to perform step 902 .
  • the sending module 1702 is configured to perform step 1202 .
  • the response message includes information of the first threshold; the first threshold is the maximum number of times the terminal sends the data to the communication device in the first manner.
  • the response message includes first indication information, where the first indication information is used to instruct the terminal to end sending the data to the communication apparatus in the first manner.
  • the response message includes second indication information, where the second indication information is used to indicate the second manner.
  • the data includes user plane data; the first manner is a two-step random access manner carrying user plane data; the second manner is a four-step random access manner, or advance data transmission EDT Way.
  • the first manner is a contention-based license-free transmission manner
  • the second manner is a four-step random access manner, an EDT manner, a two-step random access manner, or a two-step random access manner carrying user plane data. Step random access method.
  • the response message includes third indication information, where the third indication information is used to indicate whether the terminal carries the user plane data when sending the third message according to the response message.
  • the third indication information is resource indication information
  • the size of the resource indicated by the resource indication information is used to determine whether the terminal carries the user plane data when sending the third message according to the response message.
  • the communication device is presented in the form of dividing each functional module in an integrated manner.
  • Module herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above.
  • the communication device may take the form shown in FIG. 8 .
  • the processor 801 in FIG. 8 may invoke the computer-executed instructions stored in the memory 803 to cause the communication apparatus to execute the method for determining the data transmission mode in the foregoing method embodiments.
  • the functions/implementation process of the receiving module 1701 and the sending module 1702 in FIG. 17 may be implemented by the processor 801 in FIG. 8 calling the computer-executed instructions stored in the memory 803 .
  • the functions/implementation processes of the receiving module 1701 and the sending module 1702 in FIG. 17 can be implemented through the communication interface 804 in FIG. 8 .
  • the communication device provided in this embodiment can execute the above-mentioned method for determining a data transmission mode, reference can be made to the above-mentioned method embodiments for the technical effect that can be obtained, and details are not repeated here.
  • FIG. 18 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • Chip 180 includes one or more processors 1801 and interface circuits 1802 .
  • the chip 180 may further include a bus 1803 . in:
  • the processor 1801 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 1801 or an instruction in the form of software.
  • the above-mentioned processor 1801 may be a general purpose processor, a digital communicator (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSP digital communicator
  • 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 or the like.
  • the interface circuit 1802 is used for sending or receiving data, instructions or information.
  • the processor 1801 can use the data, instructions or other information received by the interface circuit 1802 to perform processing, and can send the processing completion information through the interface circuit 1802 .
  • the chip 180 further includes a memory, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor.
  • a portion of the memory may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory stores executable software modules or data structures
  • the processor 1801 may execute corresponding operations by calling operation instructions stored in the memory (the operation instructions may be stored in the operating system).
  • the chip 180 may be used in the communication apparatus involved in the embodiments of the present application.
  • the interface circuit 1802 may be used to output the execution result of the processor 1801 .
  • processor 1801 and the interface circuit 1802 can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited here.
  • FIG. 19 shows a schematic diagram of the composition of a communication system.
  • the communication system 190 may include: a terminal 1901 and a network device 1902 .
  • FIG. 19 is only an exemplary drawing, and the embodiment of the present application does not limit the network elements and the number of network elements included in the communication system 190 shown in FIG. 19 .
  • the terminal 1901 has the function of the communication device shown in FIG. 15 or FIG. 16, and can be used to send data to the network device 1902 in the first manner, and in the case of failure of the data transmission, according to the received data for the data
  • the response message determines the second mode used by the terminal 1901 to retransmit at least a part of the data; or, in the case that the data transmission fails, determine the second mode used by the terminal 1901 to retransmit at least a part of the data according to a preset condition the second way.
  • the network device 1902 has the function of the communication device shown in FIG. 17 , and can be used to receive data from the terminal 1901 in the first manner, and send a response message to the terminal 1901 for the data if the data reception fails.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, which are stored in a storage medium , including several instructions to make a device (may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

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Abstract

本申请实施例提供确定数据传输方式的方法及装置，涉及无线通信领域，可以在终端传输数据失败的情况下，为该终端确定重新传输该数据所采用的传输方式，以避免通信系统中的终端采用相同的传输方式重新传输该数据，而导致重新传输数据的成功率较低。该方法包括：终端采用第一方式向网络设备发送数据；在该数据传输失败的情况下，终端根据接收到的针对该数据的响应消息确定终端重新传输该数据中的至少一部分数据所采用的第二方式；或者，在该数据传输失败的情况下，终端根据预设条件确定终端重新传输该数据中的至少一部分数据所采用的第二方式。

Description

确定数据传输方式的方法及装置
“本申请要求于2020年6月28日提交国家知识产权局、申请号为202010600141.2、发明名称为“确定数据传输方式的方法及装置”的专利申请的优先权，其全部内容通过引用结合在本申请中”。
技术领域
本申请涉及无线通信领域，尤其涉及确定数据传输方式的方法及装置。
背景技术
在通信系统中，终端可以通过下述5种数据传输方式中的任一种方式向网络设备发送用户面数据(user plane data，UP data)：四步(4-step)随机接入(random access channel，RACH)方式、提前数据传输(early data transmission，EDT)方式、两步(2-step)RACH方式、携带用户面数据的2-step RACH方式、或基于竞争的(contention-based)免授权(configured grant，CG)传输方式。
其中，4-step RACH方式中，终端通过与网络设备间的四次信令交互完成随机接入，并在随机接入成功后，向网络设备发送用户面数据。EDT方式中，终端通过与网络设备间的四次信令交互完成随机接入，并在第三次信令交互时携带用户面数据。2-step RACH方式中，终端通过与网络设备间的两次信令交互完成随机接入，并在随机接入成功后，向网络设备发送用户面数据。携带用户面数据的2-step RACH方式中，终端通过与网络设备间的两次信令交互完成随机接入，并在第一次信令交互时携带用户面数据。基于竞争的CG传输方式中，终端不需要进行随机接入，而是在定时提前(timing advance，TA)有效时，直接向网络设备发送用户面数据。
上述5种方式中，4-step RACH方式的终端在四次信令交互后传输用户面数据；EDT方式的终端在四次信令中的第三次信令交互时携带用户面数据；2-step RACH方式的终端在两次信令交互后传输用户面数据；携带用户面数据的2-step RACH方式的终端在两次信令中的第一次信令交互时携带用户面数据；基于竞争的CG传输方式的终端竞争到用于传输用户面数据的资源后，向网络设备发送用户面数据。由此可以知道，携带用户面数据的2-step RACH方式的数据传输时延，和基于竞争的CG传输方式的数据传输时延在上述5种方式中较小。
上述5种方式中，每种方式用于传输用户面数据的资源是有限的，因此，通信系统中的终端在传输用户面数据时，会因为资源碰撞或拥挤等原因出现用户面数据传输失败的情况。当用户面数据传输失败时，终端会尝试采用当前的数据传输方式重传该用户面数据。在这种情况下，终端同样会因为资源碰撞或拥挤导致传输再次失败。
发明内容
本申请实施例提供确定数据传输方式的方法及装置，可以在终端传输数据失败的情况下，为该终端确定重新传输该数据所采用的传输方式，以避免通信系统中的终端采用相同的传输方式重新传输该数据，而导致重新传输数据的成功率较低。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，本申请实施例提供一种确定数据传输方式的方法，该方法包括：终端 采用第一方式向网络设备发送数据；在该数据传输失败的情况下，该终端根据接收到的针对该数据的响应消息确定该终端重新传输该数据中的至少一部分数据所采用的第二方式；或者，在该数据传输失败的情况下，该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式。
上述第一方面提供的方法，其中一种情况，终端可以采用第一方式向网络设备发送数据，并在数据传输失败的情况下，根据接收到的针对该数据的响应消息确定终端重新传输该数据中的至少一部分数据所采用的第二方式。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。其中另一种情况，终端可以采用第一方式向网络设备发送数据，并在数据传输失败的情况下，根据预设条件确定终端重新传输该数据中的至少一部分数据所采用的第二方式。如此，可以避免通信系统中的终端采用相同的传输方式重新传输该数据，从而可以提高终端重新传输该数据时的成功率。
在一种可能的实现方式中，该响应消息为该终端采用第一方式向网络设备发送数据之后，接收到的针对该数据的响应消息；或者，该响应消息为该终端在采用第一方式向网络设备发送数据之前，接收到的针对该数据的响应消息。基于上述方法，终端可以根据终端本次采用第一方式向网络设备发送的数据的响应消息确定第二方式，终端还可以根据终端在本次采用第一方式向网络设备发送数据之前，采用第一方式向网络设备发送的该数据的响应消息确定第二方式，如此可以提高终端确定第二方式的灵活性。
在一种可能的实现方式中，在该数据传输失败的情况下，该终端根据接收到的针对该数据的响应消息确定该终端重新传输该数据采用的第二方式，包括：第一数值大于或等于第一阈值，该终端根据该响应消息确定该第二方式，该第一数值为该终端采用该第一方式向该网络设备发送该数据的次数。基于上述方法，终端采用第一方式向网络设备发送数据的次数大于一个阈值时，终端才根据响应消息确定第二方式。如此，可以避免终端在数据传输不成功时频繁切换传输方式。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息。基于上述方法，网络设备可以为终端配置终端采用第一方式向网络设备发送数据的最大次数。如此，网络设备可以根据网络性能调整终端采用第一方式向网络设备发送数据的最大次数，以提高传输效率。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该终端结束采用该第一方式向该网络设备发送该数据。基于上述方法，当响应消息包括第一指示信息时，终端可以根据第一指示信息确定结束采用该第一方式向该网络设备发送该数据，并根据响应消息确定第二方式。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。基于上述方法，响应消息包括第二指示信息时，终端可以根据第二指示信息确定第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方 式。基于上述方法，第一方式为携带用户面数据的两步随机接入方式时，终端确定的第二方式可以为四步随机接入方式或EDT方式。也就是说，当终端采用携带用户面数据的两步随机接入方式传输数据失败时，终端可以采用四步随机接入方式或EDT方式重新传输该数据。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。基于上述方法，第一方式为基于竞争的免授权传输方式时，终端确定的第二方式可以为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。也就是说，当终端采用基于竞争的免授权传输方式传输数据失败时，终端可以采用四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式重新传输该数据。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式，该响应消息为该终端采用第一方式向网络设备发送数据之后接收到的针对该数据的响应消息；该终端根据接收到的针对该数据的响应消息确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：若该终端根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认信息，终端根据该响应消息确定该第二方式。基于上述方法，终端接收到第一指示信息后，可以先根据响应消息向网络设备发送该数据，并在该数据发送失败时，确定第二方式。如此，若终端接收到第一指示信息后，发送数据成功，终端可以不用确定第二方式。
在一种可能的实现方式中，在该数据传输失败的情况下，该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：第一数值大于或等于第一阈值，该终端根据该预设条件确定该第二方式；其中，该第一数值为该终端采用该第一方式向该网络设备发送该数据的次数。基于上述方法，终端采用第一方式向网络设备发送数据的次数大于一个阈值时，终端才根据预设条件确定第二方式。如此，可以避免终端在数据传输不成功时频繁切换传输方式。
在一种可能的实现方式中，在该数据传输失败的情况下，该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式之前，该方法还包括：该终端接收来自该网络设备的针对该数据的响应消息；该响应消息包括第一指示信息，该第一指示信息用于指示该终端结束采用该第一方式向该网络设备发送该数据。基于上述方法，当响应消息包括第一指示信息时，终端可以根据第一指示信息确定结束采用该第一方式向该网络设备发送该数据，并根据预设条件确定第二方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式，该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：若该终端根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认消息，该终端根据该预设条件确定该第二方式。基于上述方法，终端接收到第一指示信息后，可以先根据响应消息向网络设备发送该数据，并在该数据发送失败时，确定第二方式。如此，若终端接收到第一指示信息后，发送数据成功，终端可以不用确定第二方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式； 该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：该数据的传输块大小小于或等于第二阈值，该第二方式为EDT方式；该数据的传输块大小大于或等于第二阈值，该第二方式为四步随机接入方式。基于上述方法，当第一方式为携带用户面数据的两步随机接入方式时，终端可以根据数据的传输块的大小确定第二方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：该数据的传输块大小小于或等于第三阈值，该第二方式为携带用户面数据的两步随机接入方式；该数据的传输块大小大于或等于第三阈值，该第二方式为两步随机接入方式。基于上述方法，当基于竞争的免授权传输方式时，终端可以根据数据的传输块的大小确定第二方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该终端根据预设条件确定该终端重新传输该数据中的至少一部分数据所采用的第二方式，包括：该终端测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小小于或等于第五阈值，该第二方式为携带用户面数据的两步随机接入方式；该终端测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为两步随机接入方式；该终端测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小小于或等于第五阈值，该第二方式为EDT方式；该终端测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为四步随机接入方式。基于上述方法，当基于竞争的免授权传输方式时，终端可以根据终端测量的参考信号接收功率和数据的传输块的大小确定第二方式。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。基于上述方法，响应消息包括第三指示信息时，终端可以根据第三指示信息确定终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。基于上述方法，终端可以通过资源指示信息确定终端根据响应消息发送第三消息时，是否携带该用户面数据。如此，响应信息中可以不包括第三指示信息，这样可以不用增加响应消息的负载。
第二方面，本申请实施例提供一个确定数据传输方式的方法，该方法包括：网络设备采用第一方式接收来自终端的数据；该数据接收失败的情况下，该网络设备向该终端发送针对该数据的响应消息，该响应消息用于指示该终端确定重新传输该数据中的至少一部分数据所采用的第二方式。
上述第二方面提供的方法，网络设备可以采用第一方式接收来自终端的数据，并在数据接收失败的情况下，向终端发送用于指示终端确定重新传输该数据中的至少一部分数据所采用的第二方式的响应消息。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传 输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息；该第一阈值为该终端采用第一方式向网络设备发送该数据的最大次数。基于上述方法，网络设备可以通过响应消息为终端配置终端采用第一方式向网络设备发送数据的最大次数，以便终端根据网络设备配置的最大次数确定何时确定第二方式。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该终端结束采用该第一方式向该网络设备发送该数据。基于上述方法，网络设备可以通过响应消息中的第一指示信息指示终端结束采用第一方式向网络设备发送数据。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。基于上述方法，网络设备可以通过响应消息中的第二指示信息指示第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方式。基于上述方法，基于上述方法，第一方式为携带用户面数据的两步随机接入方式时，第二方式可以为四步随机接入方式或EDT方式。也就是说，当网络设备采用携带用户面数据的两步随机接入方式接收数据失败时，网络设备可以采用四步随机接入方式或EDT方式重新接收该数据。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。基于上述方法，第一方式为基于竞争的免授权传输方式时，第二方式可以为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。也就是说，当网络设备采用基于竞争的免授权传输方式接收数据失败时，网络设备可以采用四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式重新接收该数据。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。基于上述方法，网络设备可以通过响应消息中的第三指示信息指示终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。基于上述方法，网络设备可以通过资源指示信息隐式指示终端根据响应消息发送第三消息时，是否携带该用户面数据。如此，可以不用增加响应消息的负载。
第三方面，本申请实施例提供一种通信装置，该通信装置包括：发送模块和处理模块；发送模块，用于采用第一方式向网络设备发送数据；处理模块，用于在该数据传输失败的情况下，根据接收到的针对该数据的响应消息确定该通信装置重新传输该数据中的至少一部分数据所采用的第二方式；或者，处理模块，用于在该数据传输失败的情况下，根据预设条件确定该通信装置重新传输该数据中的至少一部分数据所采用的第二方式。
在一种可能的实现方式中，该响应消息为该通信装置采用第一方式向网络设备发送数据之后，接收到的针对该数据的响应消息；或者，该响应消息为该通信装置在采用第一方式向网络设备发送数据之前，接收到的针对该数据的响应消息。
在一种可能的实现方式中，在该数据传输失败的情况下，处理模块，具体用于第一数值大于或等于第一阈值，根据该响应消息确定该第二方式，该第一数值为该通信装置采用该第一方式向该网络设备发送该数据的次数。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该通信装置结束采用该第一方式向该网络设备发送该数据。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式，该响应消息为该通信装置采用第一方式向网络设备发送数据之后接收到的针对该数据的响应消息；处理模块，具体用于若该通信装置根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认信息，根据该响应消息确定该第二方式。
在一种可能的实现方式中，在该数据传输失败的情况下，处理模块，具体用于第一数值大于或等于第一阈值，根据该预设条件确定该第二方式；其中，该第一数值为该通信装置采用该第一方式向该网络设备发送该数据的次数。
在一种可能的实现方式中，该通信装置还包括：接收模块，该接收模块，用于接收来自该网络设备的针对该数据的响应消息；该响应消息包括第一指示信息，该第一指示信息用于指示该通信装置结束采用该第一方式向该网络设备发送该数据。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式，处理模块，具体用于若该通信装置根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认消息，根据该预设条件确定该第二方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式；该数据的传输块大小小于或等于第二阈值，该第二方式为EDT方式；该数据的传输块大小大于或等于第二阈值，该第二方式为四步随机接入方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该数据的传输块大小小于或等于第三阈值，该第二方式为携带用户面数据的两步随机接入方式；该数据的传输块大小大于或等于第三阈值，该第二方式为两步随机接入方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该通信装置测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小小于或等于 第五阈值，该第二方式为携带用户面数据的两步随机接入方式；该通信装置测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为两步随机接入方式；该通信装置测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小小于或等于第五阈值，该第二方式为EDT方式；该通信装置测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为四步随机接入方式。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。
第四方面，本申请实施例提供一种通信装置，该通信装置包括：接收模块和发送模块；接收模块，用于采用第一方式接收来自终端的数据；发送模块，用于在数据接收失败的情况下，向该终端发送针对该数据的响应消息，该响应消息用于指示该终端确定重新传输该数据中的至少一部分数据所采用的第二方式。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息；该第一阈值为该终端采用该第一方式向该通信装置发送该数据的最大次数。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该终端结束采用该第一方式向该通信装置发送该数据。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。
第五方面，本申请实施例提供一种通信装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该装置实现上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第六方面，本申请实施例提供一种通信装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该装置实现上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第七方面，本申请实施例提供一种通信装置，该装置用于实现上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第八方面，本申请实施例提供一种通信装置，该装置用于实现上述第二方面、或 第二方面任一种可能的实施方式中所述的方法。
第九方面，本申请实施例提供一种计算机可读介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第十方面，本申请实施例提供一种计算机可读介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第十一方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第十二方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第十三方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第一方面、或第一方面任一种可能的实施方式中所述的方法。
第十四方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第二方面、或第二方面任一种可能的实施方式中所述的方法。
第十五方面，本申请实施例提供一种通信系统。该系统包括上述第三方面所述的装置和/或上述第四方面所述的装置，或者该系统包括上述第五方面所述的装置和/或上述第六方面所述的装置，或者该系统包括上述第七方面所述的装置和/或上述第八方面所述的装置。
可以理解的，上述提供的任一种通信装置、芯片、计算机可读介质、计算机程序产品或通信系统等均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考对应的方法中的有益效果，此处不再赘述。
附图说明
图1为本申请实施例提供的通信系统架构示意图；
图2为本申请实施例提供的终端通过4-step RACH方式向网络设备发送用户面数据的流程示意图；
图3为本申请实施例提供的终端通过EDT方式向网络设备发送用户面数据的流程示意图；
图4A为本申请实施例提供的终端通过2-step RACH方式向网络设备发送用户面数据的流程示意图一；
图4B为本申请实施例提供的终端通过2-step RACH方式向网络设备发送用户面数据的流程示意图二；
图5为本申请实施例提供的终端通过携带用户面数据的2-step RACH方式向网络设备发送用户面数据的流程示意图一；
图6为本申请实施例提供的终端通过携带用户面数据的2-step RACH方式向网络 设备发送用户面数据的流程示意图二；
图7为本申请实施例提供的终端通过基于竞争的CG传输方式向网络设备发送用户面数据的流程示意图；
图8为本申请实施例提供的通信装置的硬件结构示意图；
图9为本申请实施例提供的确定数据传输方式的流程示意图一；
图10为本申请实施例提供的确定数据传输方式的流程示意图二；
图11为本申请实施例提供的确定数据传输方式的流程示意图三；
图12为本申请实施例提供的确定数据传输方式的流程示意图四；
图13为本申请实施例提供的确定数据传输方式的流程示意图五；
图14为本申请实施例提供的确定数据传输方式的流程示意图六；
图15为本申请实施例提供的通信装置的结构示意图一；
图16为本申请实施例提供的通信装置的结构示意图二；
图17为本申请实施例提供的通信装置的结构示意图三；
图18为本申请实施例提供的芯片的结构示意图；
图19为本申请实施例提供的通信系统的组成示意图。
具体实施方式
下面结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供的方法可用于各种通信系统。例如该通信系统可以为长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)通信系统、新无线(new radio，NR)系统、无线保真(wireless-fidelity，WiFi)系统，第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的通信系统以及未来演进的通信系统等，不予限制。下面仅以图1所示通信系统10为例，对本申请实施例提供的方法进行描述。
如图1所示，为本申请实施例提供的通信系统10的架构示意图。图1中，通信系统10可以包括一个或多个网络设备101(仅示出了1个)以及可以与网络设备101进行通信的终端102-终端104。图1仅为示意图，并不构成对本申请提供的技术方案的适用场景的限定。
在图1中，网络设备可以为终端提供无线接入服务。具体来说，每个网络设备都对应一个服务覆盖区域，进入该区域的终端可通过Uu口与网络设备通信，以此来接收网络设备提供的无线接入服务。终端与网络设备之间可以通过Uu口链路通信。其中，Uu口链路可以根据其上传输的数据的方向分为上行链路(uplink，UL)、下行链路(downlink，DL)，UL上可以传输从终端向网络设备发送的上行数据，DL上可以传输从网络设备向终端传输的下行数据。例如：图1中，终端103位于网络设备101的覆盖区域内，网络设备101可以通过DL向终端103发送下行数据，终端103可通过UL向网络设备101发送上行数据。
图1中的网络设备，例如：网络设备101可以是任意一种具有无线收发功能的设备。包括但不限于：LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或收发点(transmission receiving point/transmission reception point，TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继 节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的TRP。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)，和/或，分布单元(distributed unit，DU)。网络设备还可以是服务器，可穿戴设备，机器通信设备、或车载设备等。以下以网络设备为基站为例进行说明。所述多个网络设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端进行通信，也可以通过中继站与终端进行通信。终端可以与不同技术的多个基站进行通信，例如，终端可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
图1中的终端，例如：终端102、终端103或终端104是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的终端、车载终端、无人驾驶(self driving)中的终端、辅助驾驶中的终端、远程医疗(remote medical)中的终端、智能电网(smart grid)中的终端、运输安全(transportation safety)中的终端、智慧城市(smart city)中的终端、智慧家庭(smart home)中的终端等等。本申请的实施例对应用场景不做限定。终端有时也可以称为终端设备、用户设备(user equipment，UE)、接入终端、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端、移动设备、UE终端设备、无线通信设备、机器终端、UE代理或UE装置等。终端可以是固定的，也可以是移动的。
其中，上述中继可以是上述网络设备，也可以是上述终端，不予限制。
作为示例而非限定，在本申请中，终端可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请中，终端可以是物联网(internet of things，IoT)系统中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请中的终端可以是机器类型通信(machine type communication，MTC)中的终端。本申请的终端可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。
在图1所示的通信系统10中，终端(例如终端102-终端104)可以通过下述5种数据传输方式中的任一种方式向网络设备(例如网络设备101)发送用户面数据：4-step RACH方式、EDT方式、2-step RACH方式、携带用户面数据的2-step RACH方式、或基于竞争的CG传输方式。下面对上述5种数据传输方式进行介绍：
(1)4-step RACH方式
请参考图2，图2为终端通过4-step RACH方式向网络设备发送用户面数据的流程示意图。终端通过4-step RACH方式向网络设备发送用户面数据可以包括步骤201-步骤207。
步骤201：网络设备向终端发送RACH预配置信息(RACH preconfigration)。
其中，RACH预配置信息包括随机接入的参数。例如，随机接入前导码(preamble)的资源等。
需要说明的是，本申请实施例中的资源可用是传输资源、时频资源、或其他形式的资源，不予限制。
步骤202：终端接收来自网络设备的RACH预配置信息，向网络设备发送随机接入请求。
其中，随机接入请求包括preamble。该随机接入请求又被称为随机接入过程中的第一消息或消息1(Msg1)。
步骤203：网络设备在检测到终端发送的随机接入前导码后，向终端发送随机接入响应(random access response，RAR)。
其中，随机接入响应又被称为随机接入过程中的第二消息或消息2(Msg2)。
步骤204：终端接收来自网络设备的RAR，向网络设备发送上行数据。
其中，该上行数据又被称为随机接入过程中的第三消息或消息3(Msg3)。Msg3可以包括控制面数据(control plane data，CP data)，例如，无线资源控制(radio resource control，RRC)信息。示例性的，RRC信息包括RRC连接建立请求(RRC connection establishment request)或RRC连接恢复请求(RRC connection resume request)等。
步骤205：网络设备接收来自终端的上行数据，向终端发送竞争解决消息。
对应的，终端接收来自网络设备的竞争解决消息。
其中，竞争解决消息又被称为随机接入过程中的第四消息或消息4(Msg4)。
可以理解的，如果终端接收到竞争解决消息并确认竞争解决正确，则可以确定随机接入成功，后续可以执行步骤206；否则，终端确定此次随机接入失败。
终端接收到竞争解决消息并确认竞争解决正确，向网络设备发送确认(acknowledgement，ACK)消息。该确认消息的资源的指示信息可以包括在上述竞争解决消息中。
步骤206：网络设备向终端发送上行调度授权(UL grant)信息。
其中，该上行调度授权信息用于指示用户面数据的资源。
步骤207：终端接收来自网络设备的上行调度授权信息，向网络设备发送该用户面数据。
对应的，网络设备接收来自终端的用户面数据。
(2)EDT方式
请参考图3，图3为终端通过EDT方式向网络设备发送用户面数据的流程示意图。与上述图2所示方法不同的是，用户面数据不是在随机接入成功后发送，而是在发送控制面数据时，也发送用户面数据。具体的，终端通过EDT方式向网络设备发送用户面数据可以包括步骤301-步骤305。
步骤301：网络设备向终端发送RACH预配置信息(RACH preconfigration)。
步骤302：终端接收来自网络设备的RACH预配置信息，向网络设备发送随机接入请求。
步骤303：网络设备在检测到终端发送的随机接入前导码后，向终端发送RAR。
上述步骤301-步骤303的具体过程，可以参考图2所示方法中步骤201-步骤202的描述，不予赘述。
步骤304：终端接收来自网络设备的RAR，向网络设备发送上行数据。
其中，该上行数据又被称为随机接入过程中的第三消息或消息3(Msg3)。Msg3可以包括控制面数据和用户面数据。其中，控制面数据的介绍可以参考上述步骤204中所述。
步骤305：网络设备接收来自终端的上行数据，向终端发送竞争解决消息。
对应的，终端接收来自网络设备的竞争解决消息。
其中，竞争解决消息又被称为随机接入过程中的第四消息或消息4(Msg4)。
可以理解的，如果终端接收到竞争解决消息并确认竞争解决正确，则可以确定随机接入成功；否则，终端确定此次随机接入失败。
终端接收到竞争解决消息并确认竞争解决正确，向网络设备发送确认消息。该确认消息的资源的指示信息可以包括在上述竞争解决消息中。
(3)2-step RACH方式
请参考图4A，图4A为终端通过2-step RACH方式向网络设备发送用户面数据的流程示意图。终端通过2-step RACH方式向网络设备发送用户面数据可以包括步骤401-步骤405。
步骤401：网络设备向终端发送RACH预配置信息(RACH preconfigration)。
其中，RACH预配置信息包括随机接入的参数。例如，随机接入前导码(preamble)的资源等。
步骤402：终端接收来自网络设备的RACH预配置信息，向网络设备发送随机接入请求。
其中，随机接入请求也可以称为消息A(MsgA)。随机接入请求包括随机接入前导码和上行数据，相当于上述图2中的Msg1和Msg3，也可以理解为，是将Msg1和Msg3“一起发送”。这里的上行数据是控制面数据，比如RRC信息。示例性的，RRC信息包括RRC连接建立请求或RRC连接恢复请求等。
步骤403：网络设备接收来自终端的随机接入请求，并向终端发送消息B(MsgB)。
对应的，终端接收来自网络设备的消息B。
其中，消息B即针对随机接入请求的响应消息，也可以称为MsgB，包括针对随机接入前导码的响应消息和针对上行数据的响应消息中的至少一种。
可以理解的，网络设备接收到随机接入请求后，可以检测preamble并对控制面数 据进行译码。
其中一种情况，网络设备对preamble检测成功，对控制面数据译码成功。消息B包括针对随机接入前导码的响应消息和针对上行数据的响应消息中的至少一种。在这种情况下，消息B可以称为成功随机接入响应(success RAR)。
在这种情况下，如果终端接收到消息B并解调成功，则可以确定随机接入成功，后续可以执行步骤404；否则，终端确定此次随机接入失败。
终端接收到消息B并解调成功后，向网络设备发送确认(acknowledgement，ACK)消息。该确认消息的资源的指示信息可以包括在上述消息B中。
步骤404：网络设备向终端发送上行调度授权信息。
其中，该上行调度授权信息用于指示用户面数据的资源。
步骤405：终端接收来自网络设备的上行调度授权信息，向网络设备发送该用户面数据。
对应的，网络设备接收来自终端的用户面数据。
其中另一种情况，网络设备对preamble检测成功，对控制面数据译码失败。消息B包括针对随机接入前导码的响应消息。在这种情况下，消息B可以称为回退随机接入响应(fallback RAR)。
该回退随机接入响应指示Msg3的传输，例如，该回退随机接入响应包括Msg3的传输资源的指示信息。在这种情况下，终端再次向网络设备发送Msg3，Msg3包括上述控制面数据。具体的，如图4B所示，图4A所示的步骤404-步骤405可以被步骤406-步骤407替代。
步骤406：终端向网络设备发送Msg3。
其中，Msg3包括上述控制面数据。
步骤407：网络设备接收来自终端的Msg3，向终端发送竞争解决消息。
可以理解的，网络设备接收到Msg3，对Msg3包括的控制面数据译码成功，向终端发送竞争解决消息。
可以理解的，如果终端接收到竞争解决消息并确认竞争解决正确，则可以确定随机接入成功。
终端接收到竞争解决消息并确认竞争解决正确后，向网络设备发送确认消息。该确认消息的资源的指示信息可以包括在上述竞争解决消息中。
基站收到终端反馈的确认消息后，在这种情况下，可以执行上述步骤404和步骤405，终端完成用户面数据的发送。
(4)携带用户面数据的2-step RACH方式
请参考图5，图5为终端通过携带用户面数据的2-step RACH方式向网络设备发送用户面数据的流程示意图。与上述图4A或图4B所示方法不同的是，用户面数据不是在随机接入成功后发送，而是在发送控制面数据时，也发送用户面数据。具体的，终端通过携带用户面数据的2-step RACH方式向网络设备发送用户面数据可以包括步骤501-步骤503。
步骤501：网络设备向终端发送RACH预配置信息(RACH preconfigration)。
步骤502：终端接收来自网络设备的RACH预配置信息，向网络设备发送随机接 入请求。
其中，随机接入请求也可以称为消息A(MsgA)。随机接入请求包括随机接入前导码和上行数据，相当于上述图3中的Msg1和Msg3，也就是说，该上行数据中既包括控制面数据又包括用户面数据。
步骤503：网络设备接收来自终端的随机接入请求，并向终端发送消息B(MsgB)。
其中，消息B即针对随机接入请求的响应消息，也可以称为MsgB，包括针对随机接入前导码的响应消息和针对上行数据的响应消息中的至少一种。
可以理解的，网络设备接收到随机接入请求后，可以检测preamble并对用户面数据进行译码。
其中一种情况，网络设备对preamble检测成功，对用户面数据译码成功。消息B包括针对随机接入前导码的响应消息和针对上行数据的响应消息中的至少一种。在这种情况下，消息B可以称为成功随机接入响应(success RAR)。
其中另一种情况，网络设备对preamble检测成功，对用户面数据译码失败。消息B包括针对随机接入前导码的响应消息。在这种情况下，消息B可以称为回退随机接入响应(fallback RAR)。
对应的，终端接收来自网络设备的消息B。
若消息B为成功随机接入响应，终端确认消息B中携带的竞争解决消息正确后，向网络设备发送确认消息，确认随机接入成功。
可选的，若消息B为回退随机接入响应，该回退随机接入响应指示Msg3的传输，例如，该回退随机接入响应包括Msg3的资源的指示信息。在这种情况下，终端再次向网络设备发送Msg3，Msg3包括上述用户面数据。具体的，如图6所示，图5所示的方法还包括步骤504和步骤505。
步骤504：终端向网络设备发送Msg3。
其中，Msg3包括上述用户面数据。
步骤505：网络设备接收来自终端的Msg3，向终端发送竞争解决消息。
可以理解的，网络设备接收到Msg3，对Msg3包括的用户面数据译码成功，向终端发送竞争解决消息。
可以理解的，如果终端接收到竞争解决消息并确认竞争解决正确，则可以确定随机接入成功；否则，终端确定此次随机接入失败。
终端接收到竞争解决消息并确认竞争解决正确后，向网络设备发送确认消息。该确认消息的资源的指示信息可以包括在上述竞争解决消息中。
(5)基于竞争的CG传输方式
请参考图7，图7为终端通过基于竞争的CG传输方式向网络设备发送用户面数据的流程示意图。终端通过基于竞争的CG传输方式向网络设备发送用户面数据可以包括步骤701-步骤702。
步骤701：终端确定用于传输用户面数据的资源。
可以理解的，网络设备为终端配置了免授权传输(configured grant transmission，或者grant-free transmission)。在这种情况下，网络设备可以为终端配置用于传输用户面数据的资源池，终端有用户面数据到达时，终端在该资源池中确定用于传输用户面 数据的资源。进一步的，终端有用户面数据到达，并且在TA未超时或有效时，终端在该资源池中确定用于传输用户面数据的资源。
可以理解的，上述资源池是多个终端共享的。因此，终端进行基于竞争的CG传输时，可能发生资源碰撞，导致传输失败。除此之外，终端之间还可能发生解调参考信号(demodulation reference signal，DMRS)碰撞，同样会导致传输失败。
步骤702：终端通过该资源向网络设备发送用户面数据。
对应的，网络设备接收来自终端的用户面数据。
可以理解的，网络设备接收到来自终端的用户面数据后会检测DMRS，并且对用户面数据译码。网络设备在检测DMRS和译码时可能有以下3种情况：
情况1：网络设备对DMRS检测成功，并且对用户面数据译码成功，会向终端发送确认消息，用于确认用户面数据解调成功。
情况2：网络设备对DMRS检测成功，但是对用户面数据译码失败，会基于DMRS向终端发送响应消息。该响应消息可以用于向终端指示或调度该用户面数据的传输。该响应消息可以承载于物理下行控制信道(physical downlink control channel，PDCCH)；或者，该响应消息可以承载于PDCCH和物理下行共享信道(physical downlink shared channel，PDSCH)。
情况3：网络设备对DMRS检测失败，对用户面面数据译码失败，网络设备既不发送确认消息，也不发送响应消息。
上述5种方式中，4-step RACH方式的终端在四次信令交互后传输用户面数据；EDT方式的终端在四次信令中的第三次信令交互时携带用户面数据；2-step RACH方式的终端在两次信令交互后传输用户面数据；携带用户面数据的2-step RACH方式的终端在两次信令中的第一次信令交互时携带用户面数据；基于竞争的CG传输方式的终端直接在资源池中确定资源，并通过确定的资源向网络设备发送用户面数据。由此可以知道，携带用户面数据的2-step RACH方式的数据传输时延，和基于竞争的CG传输方式的数据传输时延在上述5种方式中较小。
上述5种方式中，每种方式用于传输用户面数据的资源是有限的，因此，图1所示的通信系统中，终端(例如终端102-终端104)在传输用户面数据时，会因为资源碰撞或拥挤等原因出现用户面数据传输失败的情况。当用户面数据传输失败时，终端会尝试采用当前的数据传输方式重传该用户面数据。例如，若终端初始时采用基于竞争的CG传输方式传输用户面数据，在数据传输失败时，终端可能继续尝试选择基于竞争的CG传输方式进行数据传输。在这种情况下，终端同样会因为资源碰撞或拥挤导致传输再次失败。
为了解决上述问题，本申请实施例提供确定数据传输方式的方法，该方法包括：终端采用第一方式向网络设备发送数据；在该数据传输失败的情况下，终端根据接收到的针对该数据的响应消息确定终端重新传输该数据中的至少一部分数据所采用的第二方式；或者，在该数据传输失败的情况下，终端根据预设条件确定终端重新传输该数据中的至少一部分数据所采用的第二方式。具体的，本申请实施例提供的确定数据传输方式的方法的详细介绍可以参考下述图9-图14所示的方法。
图1所示的通信系统10仅用于举例，并非用于限制本申请的技术方案。本领域的 技术人员应当明白，在具体实现过程中，通信系统10还可以包括其他设备，同时也可根据具体需要来确定网络设备和终端的数量，不予限制。
可选的，本申请实施例图1中的各网元，例如网络设备101、终端102、终端103或终端104，可以是一个装置内的一个功能模块。可以理解的是，该功能模块既可以是硬件设备中的元件，例如，终端或网络设备中的通信芯片或通信部件，也可以是在硬件上运行的软件功能模块，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，图1中的各网元均可以通过图8中的通信装置800来实现。图8所示为可适用于本申请实施例的通信装置的硬件结构示意图。该通信装置800包括至少一个处理器801，通信线路802，存储器803以及至少一个通信接口804。
处理器801可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路802可包括一通路，在上述组件之间传送信息，例如总线。
通信接口804，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网接口，无线接入网接口(radio access network，RAN)，无线局域网接口(wireless local area networks，WLAN)等。
存储器803可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路802与处理器相连接。存储器也可以和处理器集成在一起。本申请实施例提供的存储器通常可以具有非易失性。其中，存储器803用于存储执行本申请方案所涉及的计算机执行指令，并由处理器801来控制执行。处理器801用于执行存储器803中存储的计算机执行指令，从而实现本申请实施例提供的方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器801可以包括一个或多个CPU，例如图8中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信装置800可以包括多个处理器，例如图8中的处理器801和处理器807。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，通信装置800还可以包括输出设备805和输入设备806。输出设备805和处理器801通信，可以以多种方式来显示信息。例如，输出设备805可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting  diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备806和处理器801通信，可以以多种方式接收用户的输入。例如，输入设备806可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的通信装置800可以是一个通用设备或者是一个专用设备。在具体实现中，通信装置800可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图8中类似结构的设备。本申请实施例不限定通信装置800的类型。
下面结合图1-图8对本申请实施例提供的确定数据传输方式的方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
需要说明的是，在本申请的描述中，“第一”、或“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。本申请中的“第一方式”等具有不同编号的方式，该编号仅为用于上下文行文方便，不同的次序编号本身不具有特定技术含义，比如，第一方式，第二方式等，可以理解为是一系列方式中的一个或者任一个。
需要说明的是，本申请下述实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请下述实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
可以理解的，本申请实施例中同一个步骤或者具有相同功能的步骤或者消息在不同实施例之间可以互相参考借鉴。
可以理解的，本申请实施例中，终端和/或网络设备可以执行本申请实施例中的部分或全部步骤，这些步骤仅是示例，本申请实施例还可以执行其它步骤或者各种步骤的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部步骤。
在本申请实施例中，确定数据传输方式的方法的执行主体的具体结构，本申请实施例并未特别限定，只要可以通过运行记录有本申请实施例确定数据传输方式的方法的代码的程序，以根据本申请实施例的确定数据传输方式的方法进行通信即可，例如，本申请实施例提供的确定数据传输方式的方法的执行主体可以是终端，或者为应用于终端中的部件，例如，芯片，本申请对此不进行限定。或者，本申请实施例提供的确定数据传输方式的方法的执行主体可以是网络设备，或者为应用于网络设备中的部件，例如，芯片，本申请对此不进行限定。下述实施例以确定数据传输方式的方法的执行主体分别为终端、网络设备为例进行描述。
首先，以第一方式为携带用户面数据的2-step RACH方式，第二方式为4-step RACH方式或者EDT方式为例，介绍本申请实施例提供的确定数据传输方式的方法。
如图9所示，为本申请实施例提供的一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤901-步骤903。
步骤901：终端采用携带用户面数据的2-step RACH方式向网络设备发送数据。
其中，终端可以为图1中的终端102-终端104中的任一终端。网络设备为图1中的网络设备101。该数据包括用户面数据和控制面数据。
终端采用携带用户面数据的2-step RACH方式向网络设备发送数据的过程可以参考上述图5或图6中所述，不予赘述。
对应的，网络设备接收来自终端的数据。
步骤902：数据接收失败的情况下，网络设备向终端发送针对该数据的响应消息。
其中，数据接收失败可以是指网络设备接收到终端发送的数据，但是对全部或者部分数据译码错误(比如网络设备对前导检测正确，对用户面数据译码错误)。可以理解的，网络设备对前导检测正确，对用户面数据译码错误时，网络设备向终端发送的是针对前导的响应消息。
其中，该响应消息可以用于指示终端确定重新传输该数据中的至少一部分数据所采用的第二方式。例如，该响应消息用于指示终端确定重新传输该数据中的用户面数据所采用的第二方式。其中，第二方式可以为4-step RACH方式或者EDT方式。
可选的，该响应消息为图5或图6中的回退随机接入响应。
可选的，该响应消息包括以下信息中的至少一种：第一指示信息、第二指示信息、第三指示信息或者第一阈值的信息。
其中，第一指示信息用于指示终端结束采用携带用户面数据的2-step RACH方式向网络设备发送该数据。示例性的，第一指示信息为1比特指示信息。例如，第一指示信息为1时，第一指示信息指示终端结束采用携带用户面数据的2-step RACH方式向网络设备发送该数据。或者，第一指示信息包括特殊字符串或特殊字符。例如，第一指示信息包括字符串finish时，第一指示信息指示终端结束采用携带用户面数据的2-step RACH方式向网络设备发送该数据。
其中，第二指示信息用于指示第二方式。示例性的，第二指示信息通过1比特指示信息指示第二方式。例如，第二指示信息为0时，第二指示信息指示的第二方式为4-step RACH方式；第二指示信息为1时，第二指示信息指示的第二方式为EDT方式，反之亦然。或者，第二指示信息包括第二方式的标识。以4-step RACH方式的标识为ID 1，EDT方式的标识为ID 2为例，第二指示信息包括ID 1时，第二指示信息指示的第二方式为4-step RACH方式，第二指示信息包括ID 2时，第二指示信息指示的第二方式为EDT方式。
其中，第三指示信息用于指示终端根据响应消息发送Msg3时，是否携带用户面数据。例如，第三指示信息用于指示步骤504中的Msg3是否携带用户面数据，在这种情况下，该响应消息可以为步骤503中的消息B。
示例性的，第三指示信息为1比特指示信息。例如，第三指示信息为0时，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，第三指示信息为1时，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，反之亦然。或者，第三指示信息包括特殊字符串或特殊字符。例如，第三指示信息包括Y时，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，第三指示信息包括N时，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据。
需要说明的是，若第三指示信息指示终端根据响应消息发送Msg3时，不携带用 户面数据，则终端在随机接入成功后再向网络设备发送用户面数据。
进一步可选的，第三指示信息还可以用于指示第二方式。例如，若第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，第三指示信息还指示第二方式为EDT方式；若第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，第三指示信息还指示第二方式为4-step RACH方式。
其中，第一阈值的信息用于指示第一阈值。第一阈值为终端采用携带用户面数据的2-step RACH方式向网络设备发送该数据的最大次数。示例性的，第一阈值的信息包括第一阈值的索引；或者，第一阈值的信息包括第一阈值。第一阈值为大于0的正整数。
需要说明的是，上述对第一指示信息、第二指示信息、第三指示信息或第一阈值的信息的描述仅是第一指示信息、第二指示信息、第三指示信息或第一阈值的信息的示例，在具体应用中，第一指示信息、第二指示信息、第三指示信息或第一阈值的信息还可以是其他形式的，不予限制。
可以理解的，网络设备可以通过隐式指示第二指示信息，在这种情况下，响应消息可以不包括第二指示信息，如此可以不增加响应消息的负载。第二方式与物理随机接入信道(physical random access channel，PRACH)资源或preamble序列有关联关系。其中，PRACH用于传输随机接入请求。
示例性的，以网络设备将preamble序列分为A组和B组，A组preamble序列与EDT方式关联，B组preamble序列与4-step RACH方式关联为例，如果终端在向网络设备发送MsgA之前，选择A组preamble序列，则后续终端可以确定第二方式为EDT方式；如果终端在向网络设备发送MsgA之前，选择B组preamble序列，则后续终端可以确定第二方式为4-step RACH方式。
可以理解的，网络设备可以通过隐式指示该第三指示信息，在这种情况下，响应消息可以不包括第三指示信息。如此可以不增加响应消息的负载。在这种情况下，第三指示信息为资源指示信息。该资源指示信息用于指示步骤901中数据的资源。该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送Msg3时，是否携带用户面数据；或者，该资源指示信息所指示的传输块大小(transport block size，TBS)用于确定终端根据响应消息发送Msg3时，是否携带用户面数据。
例如，响应消息中包括的上行数据(物理上行共享信道(physical uplink shared channel，PUSCH))的资源指示信息所指示的资源的大小小于或等于一个门限值，则后续可以确定终端根据响应消息发送Msg3时，携带用户面数据；响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的资源的大小大于或等于一个门限值，则后续可以确定终端根据响应消息发送Msg3时，不携带用户面数据。
又例如，响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的传输块大小小于或等于一个门限值，则后续可以确定终端根据响应消息发送Msg3时，携带用户面数据；响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的传输块大小大于或等于一个门限值，则后续可以确定终端根据响应消息发送Msg3时，不携带用户面数据。
可以理解的，网络设备指示的第二方式可以是根据检测到的网络状态确定的。例 如，网络设备检测到4-step RACH方式的资源利用率大于或等于一个门限值时，网络设备指示的第二方式为EDT方式；网络设备检测到的EDT方式的资源利用率大于或等于一个门限值时，网络设备指示的第二方式为4-step RACH方式。
步骤903：终端接收来自网络设备的响应消息，在数据传输失败的情况下，根据该响应消息确定第二方式。
一种可能的实现方式，响应消息不包括第一指示信息。在数据传输失败的情况下，终端根据该响应消息确定第二方式，包括：第一数值大于或等于第一阈值，终端根据响应消息确定第二方式。
其中，第一数值为终端采用携带用户面数据的2-step RACH方式向网络设备发送上述数据的次数。第一阈值为预配置的，例如，第一阈值为标准中定义的；或者第一阈值为网络设备配置的，例如，网络设备通过响应消息中的第一阈值的信息配置该第一阈值。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤901是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。终端接收到该响应消息后，根据响应消息向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端知道本次数据传输失败。终端将第一数值加1，加1后第一数值为3，终端第3次采用携带用户面数据的2-step RACH方式向网络设备发送该数据，同理，终端接收到该响应消息后，根据响应消息向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端知道本次数据传输失败。终端将第一数值加1，加1后第一数值为4，第一数值大于第一阈值，此时终端根据响应消息确定第二方式，后续终端采用第二方式向网络设备发送该数据。
另一种可能的实现方式，响应消息包括第一指示信息，终端接收到该响应信息后，根据第一指示信息确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据。后续，终端根据响应消息确定第二方式。也就是说，当响应消息包括第一指示信息时，不论第一数值是否大于或等于第一阈值，终端都确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据。
需要说明的是，当响应消息包括第一指示信息时，其中一种情况，终端接收到响应消息后，可以立即根据响应消息确定第二方式。也就是说，终端接收到响应消息后，不执行步骤504和步骤505，而是直接根据响应消息确定第二方式。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤901是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据，并根据响应消息确定第二方式。
其中另一种情况，终端接收响应消息后，也可以根据响应消息向网络设备发送上述数据。若终端根据响应消息向网络设备发送上述数据后，在预设时间内，未接收到来自网络设备的确认信息(例如竞争解决消息)，终端根据响应消息确定第二方式。 也就是说，终端接收到响应消息后，执行步骤504和步骤505，并在数据还未传输成功的情况下，根据响应消息确定第二方式。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤901是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，根据响应消息向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据，并根据响应消息确定第二方式。
可以理解的，上述示例中，若终端在向网络设备发送Msg3后，预设时间内终端接收到来自网络设备的竞争解决消息，并且确认竞争解决成功，则表示终端成功向网络设备发送该数据，终端无需再次发送该数据。
可以理解的，响应消息包括的内容不同时，在数据传输失败的情况下，终端根据响应消息确定第二方式的过程不同。具体的，可以参考下述情况1-情况4。
情况1：响应消息包括第二指示信息。
示例性的，以第二指示信息通过1比特指示信息指示第二方式为例，若第二指示信息为0，则终端确定第二方式为4-step RACH方式；第二指示信息为1时，终端确定第二方式为EDT方式，反之亦然。
示例性的，以第二指示信息包括第二方式的标识，4-step RACH方式的标识为ID 1，EDT方式的标识为ID 2为例，第二指示信息包括ID 1时，终端确定第二方式为4-step RACH方式，第二指示信息包括ID 2时，终端确定第二方式为EDT方式。
情况2：响应消息包括第三指示信息。
示例性的，以第三指示信息为1比特指示信息为例，第三指示信息为0时，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，以及第二方式为EDT方式；第三指示信息为1时，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，以及第二方式为4-step RACH方式，反之亦然。
示例性的，以第三指示信息包括特殊字符串或特殊字符为例，第三指示信息包括Y时，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，以及第二方式为EDT方式；第三指示信息包括N时，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，以及第二方式为4-step RACH方式。
可以理解的，在情况2中，终端还可以根据PRACH资源或preamble序列确定第二方式。具体的可以参考上述步骤902中网络设备通过隐式指示第二指示信息中对应的描述。在这种情况下，第三指示信息指示终端根据响应消息发送Msg3时，是否携带用户面数据，但是不指示第二方式。
情况3：响应消息包括第二指示信息和第三指示信息。
示例性的，以第二指示信息通过1比特指示信息指示第二方式，第三指示信息为1比特指示信息为例，若第二指示信息为0，则终端确定第二方式为4-step RACH方式；第二指示信息为1时，终端确定第二方式为EDT方式，反之亦然。第三指示信息为0时，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，第三指示 信息为1时，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，反之亦然。
情况4：响应消息不包括第二指示信息和第三指示信息。例如，响应消息包括第一指示信息，和/或，第一阈值的信息。
一种可能的实现方式，终端可以根据PRACH资源或preamble序列确定第二方式。具体的可用参考上述步骤902中网络设备通过隐式指示第二指示信息中对应的描述。
另一种可能的实现方式，终端可以根据资源指示信息中指示的资源的大小确定终端根据响应消息发送Msg3时是否携带用户面数据，以及第二方式。其中，资源指示信息的描述可以参考上述步骤902中所述。
示例性的，响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的资源的大小小于或等于一个门限值，则终端确定终端根据响应消息发送Msg3时，携带用户面数据，以及第二方式为EDT方式；响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的资源的大小大于或等于一个门限值，则终端确定终端根据响应消息发送Msg3时，不携带用户面数据，以及第二方式为4-step RACH方式。
示例性的，响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的传输块大小小于或等于一个门限值，则终端确定终端根据响应消息发送Msg3时，携带用户面数据，以及第二方式为EDT方式；响应消息中包括的上行数据(PUSCH)的资源指示信息所指示的传输块大小大于或等于一个门限值，则终端确定终端根据响应消息发送Msg3时，不携带用户面数据，以及第二方式为4-step RACH方式。
基于图9所示的方法，终端可以采用携带用户面数据的2-step RACH方式向网络设备发送数据，接收来自网络设备的针对该数据的响应消息，并在数据传输失败的情况下，根据该响应消息确定终端重新传输该数据中的至少一部分数据所采用的第二方式。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。
上述图9所示的方法中，终端是根据步骤901之后接收到的针对该数据的响应消息确定第二方式的。在具体应用中，在步骤901之后，终端可能在预设时间内没有接收到针对该数据的响应消息。在这种情况下，若在步骤901之前，终端接收到的针对该数据的响应消息，也就是说，在步骤901之前，终端采用携带用户面数据的2-step RACH方式向网络设备发送该数据，并接收到针对该数据的响应消息，终端也可以根据该响应消息确定第二方式。
如图10所示，为本申请实施例提供的又一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤1001-步骤1004。
步骤1001：终端采用携带用户面数据的2-step RACH方式向网络设备发送数据。
步骤1001的具体过程可以参考上述步骤901中所述，不予赘述。
步骤1002：数据接收失败的情况下，网络设备向终端发送针对该数据的响应消息。
其中，数据接收失败可以是指网络设备接收到该数据，但是对用户面数据译码错误。
其中，该响应消息可以用于指示终端确定重新传输该数据中的至少一部分数据所 采用的第二方式。例如，该响应消息用于指示终端确定重新传输该数据中的用户面数据所采用的第二方式。其中，第二方式可以为4-step RACH方式或者EDT方式。
可选的，该响应消息为图5中的回退随机接入响应。
可选的，该响应消息包括以下信息中的至少一种：第二指示信息、第三指示信息或者第一阈值的信息。其中，第二指示信息、第三指示信息和第一阈值的信息的介绍，可以参考上述步骤902中所述，不予赘述。
对应的，终端接收来自网络设备的响应消息。
进一步可选的，若响应消息不包括第三指示信息；或者，该响应消息包括第三指示信息，第三指示信息指示终端根据响应消息发送Msg3时，携带用户面数据，则终端接收到该响应消息后，根据该响应消息向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，第一数值加1。若加1后的第一数值小于第一阈值，终端执行下述步骤1003。若加1后的第一数值大于或等于第一阈值，终端根据该响应消息确定第二方式，具体的，可以参考上述步骤903中所述。若终端在向网络设备发送Msg3后，预设时间内接收到来自网络设备的竞争解决消息，并且确认竞争解决成功，则该用户面数据传输成功。
若响应消息包括第三指示信息，第三指示信息指示终端根据响应消息发送Msg3时，不携带用户面数据，则终端接收到该响应消息后，根据该响应消息向网络设备发送不包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，第一数值加1。若加1后的第一数值小于第一阈值，终端执行下述步骤1003。若加1后的第一数值大于或等于第一阈值，终端根据该响应消息确定第二方式，具体的，可以参考上述步骤903中所述。若终端在向网络设备发送Msg3后，预设时间内接收到来自网络设备的竞争解决消息，并且确认竞争解决成功，则终端接收来自网络设备的上行调度授权信息，并根据该上行调度授权信息向网络设备发送用户面数据。若终端在向网络设备发送用户面数据后，预设时间内未收到来自网络设备的确认消息；或者，预设时间内终端接收到来自网络设备否定确认(negative acknowledgement，NACK)消息，第一数值加1。若加1后的第一数值小于第一阈值，终端执行下述步骤1003；若加1后的第一数值大于或等于第一阈值，终端根据该响应消息确定第二方式，具体的，可以参考上述步骤903中所述。若终端在向网络设备发送用户面数据后，预设时间内接收接收到来自网络设备的确认消息，则该用户面数据传输成功。
其中，第一数值和第一阈值的介绍可以参考上述步骤903中所述，不予赘述。
步骤1003：终端采用携带用户面数据的2-step RACH方式向网络设备发送数据。
步骤1003的具体过程可以参考上述步骤901中所述，不予赘述。
可以理解的，步骤1003中的数据与步骤1001中的数据相同；或者，步骤1003中的数据为步骤1001中的一部分数据。
需要说明的是，步骤1003之后，预设时间内终端未接收到来自网络设备的针对该数据的响应消息。
步骤1004：在数据传输失败的情况下，终端根据该响应消息确定第二方式。
需要说明的是，该响应消息可以是步骤1002中的响应消息。该响应消息也可以是步骤1001之前，终端接收到的针对该数据的响应消息，也就是说，在步骤1001之前，终端采用携带用户面数据的2-step RACH方式向网络设备发送该数据，并接收到针对该数据的响应消息。例如，步骤1001为终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送该数据，在步骤1001之前，终端第1次采用携带用户面数据的2-step RACH方式向网络设备发送该数据，并接收来自网络设备的针对该数据的响应消息。在数据传输失败的情况下，终端可以根据步骤1002中的响应消息确定第二方式，终端也可以根据步骤1001之前接收到的响应消息确定第二方式。
一种可能的实现方式，在数据传输失败的情况下，终端根据该响应消息确定第二方式，包括：第一数值大于或等于第一阈值，终端根据响应消息确定第二方式。具体的，可以参考上述步骤903中所述。
可以理解的，响应消息包括的内容不同时，在数据传输失败的情况下，终端根据响应消息确定第二方式的过程不同。具体的，可以参考下述情况1-情况4。
情况1：响应消息包括第二指示信息。
情况2：响应消息包括第三指示信息。
情况3：响应消息包括第二指示信息和第三指示信息。
情况4：响应消息不包括第二指示信息和第三指示信息。例如，响应消息包括第一阈值的信息。
上述情况1-情况4的介绍可以参考上述步骤903中情况1-情况4中所述。
基于图10所示的方法，在用户面数据传输失败，且第一数值小于第一阈值的情况下，终端可以多次采用携带用户面数据的2-step RACH方式向网络设备发送数据。因此，终端有可能多次接收到来自网络设备的针对该数据的响应消息。后续，当第一数值大于或等于第一阈值时，终端可以根据任一次接收到的响应消息确定终端重新传输该数据中的至少一部分数据所采用的第二方式。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。
上述图9和图10所示的方法中，终端是根据接收到的针对数据的响应消息确定第二方式。在具体应用中，终端有可能未接收到该响应消息；或者，终端接收到该响应消息，但是该响应消息中未包括用于确定第二方式的信息。在这种情况下，终端可以根据预设条件确定终端重新传输该数据中的至少一部分数据所采用的第二方式。
如图11所示，为本申请实施例提供的又一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤1101-步骤1102。
步骤1101：终端采用携带用户面数据的2-step RACH方式向网络设备发送数据。
步骤1101的具体过程可以参考上述步骤901中所述。
需要说明的是，步骤1101之后，预设时间内终端未接收到来自网络设备的针对该数据的响应消息；或者，步骤1101之后，预设时间内终端接收到来自网络设备的针对该数据的响应消息，但是该响应消息中未包括用于确定第二方式的信息。例如，该响 应消息包括第一指示信息，和/或，第一阈值的信息。其中，第一指示信息和第一阈值的信息的介绍可以参考上述步骤902中所述。
步骤1102：在数据传输失败的情况下，终端根据预设条件确定第二方式。
一种可能的实现方式，预设时间内，终端未接收到响应消息；或者，终端接收到响应消息，但该响应消息不包括第一指示信息。在数据传输失败的情况下，终端根据预设条件确定第二方式，包括：第一数值大于或等于第一阈值，终端根据预设条件确定第二方式。
其中，第一数值为终端采用携带用户面数据的2-step RACH方式向网络设备发送上述数据的次数。第一阈值为预配置的，例如，第一阈值为标准中定义的；或者第一阈值为网络设备配置的，例如，网络设备通过响应消息中的第一阈值的信息配置该第一阈值。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1001是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。预设时间内，终端未接收到响应消息；或者，终端接收到回退随机接入响应，但是该回退随机接入响应中未包括用于确定第二方式的信息，终端尝试向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端知道本次数据传输失败。终端将第一数值加1，加1后第一数值为3，终端第3次采用携带用户面数据的2-step RACH方式向网络设备发送该数据，同理，预设时间内，终端未接收到响应消息；或者，终端接收到回退随机接入响应，但是该回退随机接入响应中未包括用于确定第二方式的信息，终端尝试向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端知道本次数据传输失败。终端将第一数值加1，加1后第一数值为4，第一数值大于第一阈值，此时终端根据预设条件确定第二方式，后续终端采用第二方式向网络设备发送该数据。
另一种可能的实现方式，终端接收到响应消息，该响应消息包括第一指示信息，终端接收到该响应信息后，根据第一指示信息确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据。后续，终端根据预设条件确定第二方式。也就是说，当响应消息包括第一指示信息时，不论第一数值是否大于或等于第一阈值，终端都确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据。
需要说明的是，当响应消息包括第一指示信息时，其中一种情况，终端接收到响应消息后，可以立即根据预设条件确定第二方式。也就是说，终端接收到响应消息后，不执行步骤504和步骤505，而是直接根据预设条件确定第二方式。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1001是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据，并根据预设条件确定第二方式。
其中另一种情况，终端接收响应消息后，也可以根据响应消息向网络设备发送上 述数据。若终端根据响应消息向网络设备发送上述数据后，在预设时间内，未接收到来自网络设备的确认信息(例如竞争解决消息)，终端根据预设条件确定第二方式。也就是说，终端接收到响应消息后，执行步骤504和步骤505，并在数据还未传输成功的情况下，根据预设条件确定第二方式。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1001是终端第2次采用携带用户面数据的2-step RACH方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，根据响应消息向网络设备发送包括用户面数据的Msg3。若终端在向网络设备发送Msg3后，预设时间内未收到来自网络设备的竞争解决消息；或者，预设时间内终端接收到来自网络设备的竞争解决消息，但是确认竞争解决失败，终端确定结束采用携带用户面数据的2-step RACH方式向网络设备发送数据，并根据预设条件确定第二方式。
可以理解的，上述示例中，若终端在向网络设备发送Msg3后，预设时间内终端接收到来自网络设备的竞争解决消息，并且确认竞争解决成功，则表示终端成功向网络设备发送该数据，终端无需再次发送该数据。
可选的，终端根据预设条件确定第二方式，包括：数据的传输块大小小于或等于第二阈值，第二方式为EDT方式；数据的传输块大小大于或等于第二阈值，第二方式为4-step RACH方式。其中，第二阈值为正数。
可以理解的，EDT方式中的Msg3可以携带的数据大小是有限的，例如，Msg3可以携带的数据大小为56比特或72比特。因此，数据的传输块大小大于56比特或72比特时，Msg3无法携带，此时可以通过4-step RACH方式重新传输该数据。
示例性的，以第二阈值为56比特为例，若数据的传输块大小为60比特，则终端确定的第二方式为4-step RACH方式；若数据的传输块大小为35比特，则终端确定的第二方式为EDT方式。
基于图11所示的方法，终端可以采用携带用户面数据的2-step RACH方式向网络设备发送数据，并在数据传输失败的情况下，根据该预设条件确定终端重新传输该数据中的至少一部分数据所采用的第二方式。如此，可以避免通信系统中的终端采用相同的传输方式重新传输该数据，从而可以提高终端重新传输该数据时的成功率。
可以理解的，除了上述图9、图10或图11所述的方法之外，终端采用携带用户面数据的2-step RACH方式向网络设备发送数据，并在数据传输失败的情况下，还可以根据其他方式确定第二方式。例如，终端可以根据预定义或预配置的方式确定第二方式。预定义或预配置的方式是指第二方式为标准中定义的；或者，第二方式是网络设备预配置的。其中，预定义或预配置的方式可以为EDT方式或4-step RACH方式。
示例性的，以预定义或预配置的方式为EDT方式为例，终端采用携带用户面数据的2-step RACH方式向网络设备发送数据，在预设时间内，终端未接收到响应消息；或者，终端接收到响应消息，但该响应消息未包括用于指示第二方式的信息和上述第一指示信息，并且第一数值大于或等于第一阈值时，终端确定第二方式为EDT方式。
示例性的，以预定义或预配置的方式为4-step RACH方式为例，终端采用携带用户面数据的2-step RACH方式向网络设备发送数据，并接收到来自网络设备的响应消息，该响应消息包括上述第一指示信息，但是该响应消息不包括用于指示第二方式的 信息时，终端确定第二方式为4-step RACH方式。
下面以第一方式为基于竞争的CG传输方式，第二方式为4-step RACH方式、EDT方式、2-step RACH方式或者携带用户面数据的2-step RACH方式为例，介绍本申请实施例提供的确定数据传输方式的方法。
如图12所示，为本申请实施例提供的又一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤1201-步骤1203。
步骤1201：终端采用基于竞争的CG传输方式向网络设备发送数据。
其中，终端可以为图1中的终端102-终端104中的任一终端。网络设备为图1中的网络设备101。该数据包括用户面数据。
终端采用基于竞争的CG传输方式向网络设备发送数据的过程可以参考上述图7中所述，不予赘述。
对应的，网络设备采用基于竞争的CG传输方式接收来自终端的数据。
步骤1202：数据接收失败的情况下，网络设备向终端发送针对该数据的响应消息。
其中，数据接收失败可以是指网络设备接收到该数据，网络设备对DMRS检测成功，但是对用户面数据译码错误。
其中，该响应消息可以用于指示终端确定重新传输该数据所采用的第二方式。其中，第二方式可以为4-step RACH方式、EDT方式、2-step RACH方式或者携带用户面数据的2-step RACH方式。
可选的，该响应消息为图7中的响应消息。
可选的，该响应消息包括以下信息中的至少一种：第一指示信息、第二指示信息或者第一阈值的信息。
其中，第一指示信息用于指示终端结束采用基于竞争的CG传输方式向网络设备发送该数据。示例性的，第一指示信息为1比特指示信息。例如，第一指示信息为1时，第一指示信息指示终端结束采用基于竞争的CG传输方式向网络设备发送该数据。或者，第一指示信息包括特殊字符串或特殊字符。例如，第一指示信息包括字符串finish时，第一指示信息指示终端结束采用基于竞争的CG传输方式向网络设备发送该数据。
其中，第二指示信息用于指示第二方式。示例性的，第二指示信息通过2比特指示信息指示第二方式。例如，第二指示信息为00时，第二指示信息指示的第二方式为4-step RACH方式；第二指示信息为01时，第二指示信息指示的第二方式为EDT方式；第二指示信息为10时，第二指示信息指示的第二方式为2-step RACH方式；第二指示信息为11时，第二指示信息指示的第二方式为携带用户面数据的2-step RACH方式。或者，第二指示信息包括第二方式的标识。以4-step RACH方式的标识为ID 1，EDT方式的标识为ID 2，2-step RACH方式的标识为ID 3，携带用户面数据的2-step RACH方式的标识为ID 4为例，第二指示信息包括ID 1时，第二指示信息指示的第二方式为4-step RACH方式；第二指示信息包括ID 2时，第二指示信息指示的第二方式为EDT方式；第二指示信息包括ID 3时，第二指示信息指示的第二方式为2-step RACH方式；第二指示信息包括ID 4时，第二指示信息指示的第二方式为携带用户面数据的2-step RACH方式。
其中，第一阈值的信息用于指示第一阈值。第一阈值为终端采用基于竞争的CG 传输方式向网络设备发送该数据的最大次数。示例性的，第一阈值的信息包括第一阈值的索引；或者，第一阈值的信息包括第一阈值。第一阈值为大于0的正整数。
需要说明的是，上述对第一指示信、第二指示信息或第一阈值的信息的描述仅是第一指示信、第二指示信息或第一阈值的信息的示例，在具体应用中，第一指示信、第二指示信息或第一阈值的信息还可以是其他形式的，不予限制。
可以理解的，网络设备可以通过隐式指示第二指示信息，在这种情况下，响应消息可以不包括第二指示信息，如此可以不增加响应消息的负载。第二方式与图7中的资源池中的资源或DMRS资源有关联关系。
示例性的，以网络设备将DMRS资源分为A组、B组、C组和D组，A组DMRS资源与EDT方式关联，B组DMRS资源与4-step RACH方式关联，C组DMRS资源与2-step RACH方式关联，D组DMRS资源与携带用户面数据的2-step RACH方式关联为例，如果终端在向网络设备发送用户面数据之前，选择A组DMRS资源，则后续终端可以确定第二方式为EDT方式；如果终端在向网络设备发送用户面数据之前，选择B组DMRS资源，则后续终端可以确定第二方式为4-step RACH方式；如果终端在向网络设备发送用户面数据之前，选择C组DMRS资源，则后续终端可以确定第二方式为2-step RACH方式；如果终端在向网络设备发送用户面数据之前，选择D组DMRS资源，则后续终端可以确定第二方式为携带用户面数据的2-step RACH方式。
可以理解的，网络设备指示的第二方式可以是根据检测到的网络状态确定的。例如，网络设备检测到的携带用户面数据的2-step RACH方式的资源利用率小于或等于第一门限值时，网络设备指示的第二方式为携带用户面数据的2-step RACH方式；网络设备检测到2-step RACH方式的资源利用率小于或等于第二门限值时，网络设备指示的第二方式为2-step RACH方式；网络设备检测到的EDT方式的资源利用率小于或等于第三门限值时，网络设备指示的第二方式为EDT方式；网络设备检测到的4-step RACH方式的资源利用率小于或等于第四门限值时，网络设备指示的第二方式为4-step RACH方式。其中，第一门限值、第二门限值、第三门限值和第四门限值可以相同也可以不同。
可以理解的，网络设备指示的第二方式可以是根据EDT方式、4-step RACH方式、2-step RACH方式和携带用户面数据的2-step RACH方式用于传输数据的资源的使用情况确定的。例如，在考虑了数据时延要求的情况下，网络设备优先指示资源使用率较低的方式。
步骤1203：终端接收来自网络设备的响应消息，在数据传输失败的情况下，根据该响应消息确定第二方式。
一种可能的实现方式，响应消息不包括第一指示信息。在数据传输失败的情况下，终端根据该响应消息确定第二方式，包括：第一数值大于或等于第一阈值，终端根据响应消息确定第二方式。
其中，第一数值为终端采用基于竞争的CG传输方式向网络设备发送上述数据的次数。第一阈值为预配置的，例如，第一阈值为标准中定义的；或者第一阈值为网络设备配置的，例如，网络设备通过响应消息中的第一阈值的信息配置该第一阈值。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1201是终端第2 次采用基于竞争的CG传输方式向网络设备发送数据。终端接收到该响应消息后，知道本次数据传输失败。终端将第一数值加1，加1后第一数值为3，终端第3次采用基于竞争的CG传输方式向网络设备发送该数据，同理，终端接收到该响应消息后，知道本次数据传输失败。终端将第一数值加1，加1后的第一数值为4，第一数值等于第一阈值，此时终端根据响应消息确定第二方式，后续终端采用第二方式向网络设备发送该数据。
另一种可能的实现方式，响应消息包括第一指示信息，终端接收到该响应信息后，根据第一指示信息确定结束采用基于竞争的CG传输方式向网络设备发送数据。后续，终端根据响应消息确定第二方式。也就是说，当响应消息包括第一指示信息时，不论第一数值是否大于或等于第一阈值，终端都确定结束采用基于竞争的CG传输方式向网络设备发送数据。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1201是终端第2次采用基于竞争的CG传输方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，确定结束采用基于竞争的CG传输方式向网络设备发送数据，并根据响应消息确定第二方式。
可以理解的，响应消息包括的内容不同时，在数据传输失败的情况下，终端根据响应消息确定第二方式的过程不同。具体的，可以参考下述情况1和情况2。
情况1：响应消息包括第二指示信息。
示例性的，以第二指示信息通过2比特指示信息指示第二方式为例，若第二指示信息为00，则终端确定第二方式为4-step RACH方式；第二指示信息为01时，终端确定第二方式为EDT方式；若第二指示信息为10，则终端确定第二方式为2-step RACH方式；第二指示信息为11时，终端确定第二方式为携带用户面数据的2-step RACH方式。
示例性的，以第二指示信息包括第二方式的标识，4-step RACH方式的标识为ID 1，EDT方式的标识为ID 2，2-step RACH方式的标识为ID 3，携带用户面数据的2-step RACH方式的标识为ID 4为例，第二指示信息包括ID 1时，终端确定第二方式为4-step RACH方式；第二指示信息包括ID 2时，终端确定第二方式为EDT方式；第二指示信息包括ID 3时，终端确定第二方式为2-step RACH方式，第二指示信息包括ID 4时，终端确定第二方式为携带用户面数据的2-step RACH方式。
情况2：响应消息不包括第二指示信息。例如，响应消息包括第一指示信息，和/或，第一阈值的信息。
一种可能的实现方式，终端可以根据图7中的资源池中的资源或DMRS资源确定第二方式。具体的可用参考上述步骤1202中网络设备通过隐式指示第二指示信息中对应的描述。
需要说明的是，若终端确定的第二方式为携带用户面数据的2-step RACH方式，后续，终端采用携带用户面数据的2-step RACH方式传输数据失败时，终端可以根据上述图9、图10或图11所示的方法确定终端重新传输该数据的方式；或者，终端可以确定采用EDT方式重新传输该数据。
需要说明的是，若终端确定的第二方式为2-step RACH方式，后续，终端采用2-step  RACH方式传输数据失败时，终端可以采用4-step RACH方式重新传输该数据。
基于图12所示的方法，终端可以采用基于竞争的CG传输方式向网络设备发送数据，接收来自网络设备的针对该数据的响应消息，并在数据传输失败的情况下，根据该响应消息确定终端重新传输该数据所采用的第二方式。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。
上述图12所示的方法中，终端是根据步骤1201之后接收到的针对该数据的响应消息确定第二方式的。在具体应用中，在步骤1201之后，终端可能在预设时间内没有接收到针对该数据的响应消息。在这种情况下，若在步骤1201之前，终端接收到的针对该数据的响应消息，也就是说，在步骤1201之前，终端采用基于竞争的CG传输方式向网络设备发送该数据，并接收到针对该数据的响应消息，终端也可以根据该响应消息确定第二方式。
如图13所示，为本申请实施例提供的又一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤1301-步骤1304。
步骤1301：终端采用基于竞争的CG传输方式向网络设备发送数据。
步骤1301的具体过程可以参考上述步骤1201中所述，不予赘述。
步骤1302：数据接收失败的情况下，网络设备向终端发送针对该数据的响应消息。
其中，数据接收失败可以是指网络设备接收到该数据，但是对用户面数据译码错误。
其中，该响应消息可以用于指示终端确定重新传输该数据所采用的第二方式。其中，第二方式可以为4-step RACH方式、EDT方式、2-step RACH方式或者携带用户面数据的2-step RACH方式。
可选的，该响应消息为图7中的响应消息。
可选的，该响应消息包括第二指示信息，和/或，第一阈值的信息。其中，第二指示信息和第一阈值的信息的介绍，可以参考上述步骤1202中所述，不予赘述。
对应的，终端接收来自网络设备的响应消息。
可以理解的，终端接收到该响应消息，知道本次数据传输失败。终端将第一数值加1，若加1后的第一数值小于第一阈值，终端执行下述步骤1303。若加1后的第一数值大于或等于第一阈值，终端根据该响应消息确定第二方式，具体的，可以参考上述步骤1203中所述。
其中，第一数值和第一阈值的介绍可以参考上述步骤1203中所述，不予赘述。
步骤1303：终端采用基于竞争的CG传输方式向网络设备发送数据。
步骤1303的具体过程可以参考上述步骤1201中所述，不予赘述。
可以理解的，步骤1303中的数据与步骤1301中的数据相同。
需要说明的是，步骤1303之后，预设时间内终端未接收到来自网络设备的针对该数据的响应消息。
步骤1304：在数据传输失败的情况下，终端根据该响应消息确定第二方式。
需要说明的是，该响应消息可以是步骤1302中的响应消息。该响应消息也可以是 步骤1301之前，终端接收到的针对该数据的响应消息，也就是说，在步骤1301之前，终端采用基于竞争的CG传输方式向网络设备发送该数据，并接收到针对该数据的响应消息。例如，步骤1301为终端第2次采用基于竞争的CG传输方式向网络设备发送该数据，在步骤1301之前，终端第1次采用基于竞争的CG传输方式向网络设备发送该数据，并接收来自网络设备的针对该数据的响应消息。在数据传输失败的情况下，终端可以根据步骤1302中的响应消息确定第二方式，终端也可以根据步骤1301之前接收到的响应消息确定第二方式。
一种可能的实现方式，在数据传输失败的情况下，终端根据该响应消息确定第二方式，包括：第一数值大于或等于第一阈值，终端根据响应消息确定第二方式。具体的，可以参考上述步骤1203中所述。
可以理解的，响应消息包括的内容不同时，在数据传输失败的情况下，终端根据响应消息确定第二方式的过程不同。具体的，可以参考下述情况1和情况2。
情况1：响应消息包括第二指示信息。
情况2：响应消息不包括第二指示信息。例如，响应消息包括第一阈值的信息。
上述情况1和情况2的介绍可以参考上述步骤1203中情况1和情况2中所述。
需要说明的是，若终端确定的第二方式为携带用户面数据的2-step RACH方式，后续，终端采用携带用户面数据的2-step RACH方式传输数据失败时，终端可以根据上述图9、图10或图11所示的方法确定终端重新传输该数据的方式；或者，终端可以确定采用EDT方式重新传输该数据。
需要说明的是，若终端确定的第二方式为2-step RACH方式，后续，终端采用2-step RACH方式传输数据失败时，终端可以采用4-step RACH方式重新传输该数据。
基于图13所示的方法，在用户面数据传输失败，且第一数值小于第一阈值的情况下，终端可以多次采用基于竞争的CG传输方式向网络设备发送数据。因此，终端有可能多次接收到来自网络设备的针对该数据的响应消息。后续，当第一数值大于或等于第一阈值时，终端可以根据任一次接收到的响应消息确定终端重新传输该数据所采用的第二方式。如此，网络设备可以根据当前各种数据传输方式的资源利用或网络性能的情况等，对终端进行调度，降低终端选择相同的数据传输方式重新传输该数据时失败的概率。另外，通过网络设备的调度，还可以提高每种数据传输方式的资源利用率。
上述图12和图13所示的方法中，终端是根据接收到的针对数据的响应消息确定第二方式。在具体应用中，终端有可能未接收到该响应消息；或者，终端接收到该响应消息，但是该响应消息中未包括用于确定第二方式的信息。在这种情况下，终端可以根据预设条件确定终端重新传输该数据所采用的第二方式。
如图14所示，为本申请实施例提供的又一种确定数据传输方式的方法，该确定数据传输方式的方法包括步骤1401-步骤1402。
步骤1401：终端采用基于竞争的CG传输方式向网络设备发送数据。
步骤1401的具体过程可以参考上述步骤1201中所述。
需要说明的是，步骤1401之后，预设时间内终端未接收到来自网络设备的针对该数据的响应消息；或者，步骤1401之后，预设时间内终端接收到来自网络设备的针对 该数据的响应消息，但是该响应消息中未包括用于确定第二方式的信息。例如，该响应消息包括第一指示信息，和/或，第一阈值的信息。其中，第一指示信息和第一阈值的信息的介绍可以参考上述步骤1202中所述。
步骤1402：在数据传输失败的情况下，终端根据预设条件确定第二方式。
一种可能的实现方式，在预设时间内，终端为接收到响应消息；或者，终端接收到响应消息，但该响应消息不包括第一指示信息。在数据传输失败的情况下，终端根据预设条件确定第二方式，包括：第一数值大于或等于第一阈值，终端根据预设条件确定第二方式。
其中，第一数值为终端采用基于竞争的CG传输方式向网络设备发送上述数据的次数。第一阈值为预配置的，例如，第一阈值为标准中定义的；或者第一阈值为网络设备配置的，例如，网络设备通过响应消息中的第一阈值的信息配置该第一阈值。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1401是终端第2次采用基于竞争的CG传输方式向网络设备发送数据。预设时间内，终端未接收到响应消息；或者，终端接收到回退随机接入响应，但是该回退随机接入响应中未包括用于确定第二方式的信息，终端知道本次数据传输失败。终端将第一数值加1，加1后第一数值为3，终端第3次采用基于竞争的CG传输方式向网络设备发送该数据，同理，预设时间内，终端未接收到响应消息；或者，终端接收到回退随机接入响应，但是该回退随机接入响应中未包括用于确定第二方式的信息，终端知道本次数据传输失败。终端将第一数值加1，加1后的第一数值为4，第一数值大于第一阈值，此时终端根据预设条件确定第二方式，后续终端采用第二方式向网络设备发送该数据。
另一种可能的实现方式，响应消息包括第一指示信息，终端接收到该响应信息后，根据第一指示信息确定结束采用基于竞争的CG传输方式向网络设备发送数据。后续，终端根据预设条件确定第二方式。也就是说，当响应消息包括第一指示信息时，不论第一数值是否大于或等于第一阈值，终端都确定结束采用基于竞争的CG传输方式向网络设备发送数据。具体的，可以参考上述步骤1203中，在数据传输失败的情况下，终端根据响应消息确定第二方式的情况。
示例性的，以第一阈值为3为例，若第一数值为2，也就是步骤1401是终端第2次采用基于竞争的CG传输方式向网络设备发送数据。终端接收到包括第一指示信息的响应消息后，确定结束采用基于竞争的CG传输方式向网络设备发送数据，并根据预设条件确定第二方式。
一种可能的实现方式，终端根据预设条件确定第二方式，包括：数据的传输块大小小于或等于第三阈值，第二方式为携带用户面数据的2-step RACH方式；数据的传输块大小大于或等于第三阈值，第二方式为2-step RACH方式。其中，第三阈值为正数。
可以理解的，携带用户面数据的2-step RACH方式中的MsgA可以携带的数据大小是有限的，例如，MsgA可以携带的数据大小为56比特或72比特。因此，数据的传输块大小大于56比特或72比特时，MsgA无法携带，此时可以通过2-step RACH方式重新传输该数据。
示例性的，以第三阈值为56比特为例，若数据的传输块大小为65比特，则终端 确定的第二方式为2-step RACH方式；若数据的传输块大小为30比特，则终端确定的第二方式为携带用户面数据的2-step RACH方式。
另一种可能的实现方式，终端根据预设条件确定第二方式，包括：终端测量的参考信号接收功率(reference signal received power，RSRP)大于或等于第四阈值，且数据的传输块大小小于或等于第五阈值，第二方式为携带用户面数据的2-step RACH方式；终端测量的RSRP大于或等于第四阈值，且数据的传输块大小大于或等于第五阈值，第二方式为2-step RACH方式；终端测量的RSRP小于或等于第四阈值，且数据的传输块大小小于或等于第五阈值，第二方式为EDT方式；终端测量的RSRP小于或等于第四阈值，且数据的传输块大小大于或等于第五阈值，第二方式为4-step RACH方式。其中，第四阈值和第五阈值为正数。进一步可选的，终端是基于同步信号块(synchronization signal block，SSB)测量RSRP的，具体的，可以参考常规技术中的方法。
可以理解的，RSRP的值可以指示终端与网络设备之间信道的质量。示例性的，相对于RSRP较小的情况，RSRP较大时，终端与网络设备之间的信道质量更好。如此，当终端测量到终端与网络设备之间的信道质量较好时，终端确定第二方式为携带用户面数据的2-step RACH方式或2-step RACH方式，以减小传输数据的时延。
示例性的，以第四阈值为30dBm，第五阈值为72比特为例，若终端测量的RSRP为35dBm，数据的传输块大小为60比特，则终端确定的第二方式为携带用户面数据的2-step RACH方式；若终端测量的RSRP为38dBm，数据的传输块大小为80比特，则终端确定的第二方式为2-step RACH方式；若终端测量的RSRP为25dBm，数据的传输块大小为60比特，则终端确定的第二方式为携带用户面数据的EDT方式；若终端测量的RSRP为22dBm，数据的传输块大小为75比特，则终端确定的第二方式为4-step RACH。
需要说明的是，若终端确定的第二方式为携带用户面数据的2-step RACH方式，后续，终端采用携带用户面数据的2-step RACH方式传输数据失败时，终端可以根据上述图9、图10或图11所示的方法确定终端重新传输该数据的方式；或者，终端可以确定采用EDT方式重新传输该数据。
需要说明的是，若终端确定的第二方式为2-step RACH方式，后续，终端采用2-step RACH方式传输数据失败时，终端可以采用4-step RACH方式重新传输该数据。
基于图14所示的方法，终端可以采用基于竞争的CG传输方式向网络设备发送数据，并在数据传输失败的情况下，根据该预设条件确定终端重新传输该数据所采用的第二方式。如此，可以避免通信系统中的终端采用相同的传输方式重新传输该数据，从而可以提高终端重新传输该数据时的成功率。
可以理解的，除了上述图12、图13或图14所述的方法之外，终端采用基于竞争的CG传输方式向网络设备发送数据，并在数据传输失败的情况下，还可以根据其他方式确定第二方式。例如，终端可以根据预定义或预配置的方式确定第二方式。预定义或预配置的方式是指第二方式为标准中定义的；或者，第二方式是网络设备预配置的。其中，预定义或预配置的方式可以为携带用户面数据的2-step RACH方式、2-step RACH方式、EDT方式或4-step RACH方式。
示例性的，以预定义或预配置的方式为携带用户面数据的2-step RACH方式为例，终端采用基于竞争的CG传输方式向网络设备发送数据，在预设时间内，终端未接收到响应消息；或者，终端接收到响应消息，但该响应消息未包括用于指示第二方式的信息和上述第一指示信息，并且第一数值大于或等于第一阈值时，终端确定第二方式为携带用户面数据的2-step RACH方式。
示例性的，以预定义或预配置的方式为2-step RACH方式为例，终端采用基于竞争的CG传输方式向网络设备发送数据，并接收到来自网络设备的响应消息，该响应消息包括上述第一指示信息，但是该响应消息不包括用于指示第二方式的信息时，终端确定第二方式为2-step RACH方式。
示例性的，以预定义或预配置的方式为EDT方式为例，终端采用基于竞争的CG传输方式向网络设备发送数据，在预设时间内，终端未接收到响应消息；或者，终端接收到响应消息，但该响应消息未包括用于指示第二方式的信息和上述第一指示信息，并且第一数值大于或等于第一阈值时，终端确定第二方式为EDT方式。
示例性的，以预定义或预配置的方式为4-step RACH方式为例，终端采用基于竞争的CG传输方式向网络设备发送数据，并接收到来自网络设备的响应消息，该响应消息包括上述第一指示信息，但是该响应消息不包括用于指示第二方式的信息时，终端确定第二方式为4-step RACH方式。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，上述终端或者网络设备等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法操作，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端或者网络设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。
比如，以采用集成的方式划分各个功能模块的情况下，图15示出了一种通信装置的结构示意图。该通信装置可以为终端或者终端中的芯片或者片上系统，或其他可实现上述终端功能的组合器件、部件等，该通信装置可以用于执行上述实施例中涉及的终端的功能。
作为一种可能的实现方式，图15所示的通信装置包括：发送模块1501和处理模块1502。
当通信装置是终端时，发送模块可以是发送器，可以包括天线和射频电路等，处理模块可以是处理器，例如基带芯片等。当装置是具有上述终端功能的部件时，发送模块可以是射频单元，处理模块可以是处理器。当装置是芯片系统时，发送模块可以是芯片系统的输出接口、处理模块可以是芯片系统的处理器，例如：中央处理单元 (central processing unit，CPU)。
发送模块1501，用于采用第一方式向网络设备发送数据。例如，结合图9，发送模块1501可以用于执行步骤901。又例如，结合图12，发送模块1501可以用于执行步骤1201。
处理模块1502，用于在该数据传输失败的情况下，根据接收到的针对该数据的响应消息确定该通信装置重新传输该数据中的至少一部分数据所采用的第二方式；或者，处理模块1502，用于在该数据传输失败的情况下，根据预设条件确定该通信装置重新传输该数据中的至少一部分数据所采用的第二方式。例如，结合图9，处理模块1502可以用于执行步骤903。又例如，结合图11，处理模块1502可以用于指示步骤1102。
在一种可能的实现方式中，该响应消息为该通信装置采用第一方式向网络设备发送数据之后，接收到的针对该数据的响应消息；或者，该响应消息为该通信装置在采用第一方式向网络设备发送数据之前，接收到的针对该数据的响应消息。
在一种可能的实现方式中，在该数据传输失败的情况下，处理模块1502，具体用于第一数值大于或等于第一阈值，根据该响应消息确定该第二方式，该第一数值为该通信装置采用该第一方式向该网络设备发送该数据的次数。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该通信装置结束采用该第一方式向该网络设备发送该数据。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式，该响应消息为该通信装置采用第一方式向网络设备发送数据之后接收到的针对该数据的响应消息；处理模块1502，具体用于若该通信装置根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认信息，根据该响应消息确定该第二方式。
在一种可能的实现方式中，在该数据传输失败的情况下，处理模块1502，具体用于第一数值大于或等于第一阈值，根据该预设条件确定该第二方式；其中，该第一数值为该通信装置采用该第一方式向该网络设备发送该数据的次数。
在一种可能的实现方式中，如图16所示，该通信装置还包括：接收模块1503，该接收模块1503，用于接收来自该网络设备的针对该数据的响应消息；该响应消息包括第一指示信息，该第一指示信息用于指示该通信装置结束采用该第一方式向该网络设备发送该数据。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式， 处理模块1502，具体用于若该通信装置根据该响应消息向该网络设备发送该数据后，在预设时间内，未接收到来自该网络设备的确认消息，根据该预设条件确定该第二方式。
在一种可能的实现方式中，该第一方式为携带用户面数据的两步随机接入方式；该数据的传输块大小小于或等于第二阈值，该第二方式为EDT方式；该数据的传输块大小大于或等于第二阈值，该第二方式为四步随机接入方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该数据的传输块大小小于或等于第三阈值，该第二方式为携带用户面数据的两步随机接入方式；该数据的传输块大小大于或等于第三阈值，该第二方式为两步随机接入方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该通信装置测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小小于或等于第五阈值，该第二方式为携带用户面数据的两步随机接入方式；该通信装置测量的参考信号接收功率大于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为两步随机接入方式；该通信装置测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小小于或等于第五阈值，该第二方式为EDT方式；该通信装置测量的参考信号接收功率小于或等于第四阈值，且该数据的传输块大小大于或等于第五阈值，该第二方式为四步随机接入方式。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。
其中，上述方法实施例涉及的各操作的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该通信装置以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该通信装置可以采用图8所示的形式。
比如，图8中的处理器801可以通过调用存储器803中存储的计算机执行指令，使得通信装置执行上述方法实施例中的确定数据传输方式的方法。
示例性的，图16中的发送模块1501、处理模块1502和接收模块1503的功能/实现过程可以通过图8中的处理器801调用存储器803中存储的计算机执行指令来实现。或者，图16中的处理模块1502的功能/实现过程可以通过图8中的处理器801调用存储器803中存储的计算机执行指令来实现，图16中的发送模块1501和接收模块1503的功能/实现过程可以通过图8中的通信接口804来实现。
由于本实施例提供的通信装置可执行上述的确定数据传输方式的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
比如，以采用集成的方式划分各个功能模块的情况下，图17示出了一种通信装置的结构示意图。该通信装置可以为网络设备或者网络设备中的芯片或者片上系统，或其他可实现上述网络设备功能的组合器件、部件等，该通信装置可以用于执行上述实 施例中涉及的网络设备的功能。
作为一种可能的实现方式，图17所示的通信装置包括：接收模块1701和发送模块1702。
接收模块1701，用于采用第一方式接收来自终端的数据。例如，结合图9，接收模块1701用于执行步骤901。又例如，结合图12，接收模块1701用于执行步骤1201。
发送模块1702，用于在数据接收失败的情况下，向该终端发送针对该数据的响应消息，该响应消息用于指示该终端确定重新传输该数据中的至少一部分数据所采用的第二方式。例如，结合图9，发送模块1702用于执行步骤902。又例如，结合图12，发送模块1702，用于执行步骤1202。
在一种可能的实现方式中，该响应消息包括该第一阈值的信息；该第一阈值为该终端采用该第一方式向该通信装置发送该数据的最大次数。
在一种可能的实现方式中，该响应消息包括第一指示信息，该第一指示信息用于指示该终端结束采用该第一方式向该通信装置发送该数据。
在一种可能的实现方式中，该响应消息包括第二指示信息，该第二指示信息用于指示该第二方式。
在一种可能的实现方式中，该数据包括用户面数据；该第一方式为携带用户面数据的两步随机接入方式；该第二方式为四步随机接入方式，或者提前数据传输EDT方式。
在一种可能的实现方式中，该第一方式为基于竞争的免授权传输方式；该第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
在一种可能的实现方式中，该响应消息包括第三指示信息，该第三指示信息用于指示终端根据响应消息发送第三消息时，是否携带该用户面数据。
在一种可能的实现方式中，第三指示信息为资源指示信息，该资源指示信息所指示的资源的大小用于确定终端根据响应消息发送第三消息时，是否携带该用户面数据。
其中，上述方法实施例涉及的各操作的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该通信装置以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该通信装置可以采用图8所示的形式。
比如，图8中的处理器801可以通过调用存储器803中存储的计算机执行指令，使得通信装置执行上述方法实施例中的确定数据传输方式的方法。
示例性的，图17中的接收模块1701和发送模块1702的功能/实现过程可以通过图8中的处理器801调用存储器803中存储的计算机执行指令来实现。或者，图17中的接收模块1701和发送模块1702的功能/实现过程可以通过图8中的通信接口804来实现。
由于本实施例提供的通信装置可执行上述的确定数据传输方式的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
图18为本申请实施例提供的一种芯片的结构示意图。芯片180包括一个或多个处理器1801以及接口电路1802。可选的，所述芯片180还可以包含总线1803。其中：
处理器1801可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1801中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1801可以是通用处理器、数字通信器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤。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。
接口电路1802用于数据、指令或者信息的发送或者接收。处理器1801可以利用接口电路1802接收的数据、指令或者其它信息，进行加工，可以将加工完成信息通过接口电路1802发送出去。
可选的，芯片180还包括存储器，存储器可以包括只读存储器和随机存取存储器，并向处理器提供操作指令和数据。存储器的一部分还可以包括非易失性随机存取存储器(NVRAM)。
可选的，存储器存储了可执行软件模块或者数据结构，处理器1801可以通过调用存储器存储的操作指令(该操作指令可存储在操作系统中)，执行相应的操作。
可选的，芯片180可以使用在本申请实施例涉及的通信装置中。可选的，接口电路1802可用于输出处理器1801的执行结果。关于本申请的一个或多个实施例提供的确定数据传输方式的方法可参考前述各个实施例，这里不再赘述。
需要说明的，处理器1801、接口电路1802各自对应的功能既可以通过硬件设计实现，也可以通过软件设计来实现，还可以通过软硬件结合的方式来实现，这里不作限制。
图19示出了的一种通信系统的组成示意图，如图19所示，该通信系统190中可以包括：终端1901和网络设备1902。需要说明的是，图19仅为示例性附图，本申请实施例不限定图19所示通信系统190包括的网元以及网元的个数。
其中，终端1901具有上述图15或图16所示通信装置的功能，可以用于采用第一方式向网络设备1902发送数据，并在该数据传输失败的情况下，根据接收到的针对该数据的响应消息确定终端1901重新传输该数据中的至少一部分数据所采用的第二方式；或者，在该数据传输失败的情况下，根据预设条件确定终端1901重新传输该数据中的至少一部分数据所采用的第二方式。
网络设备1902具有上述图17所示通信装置的功能，可以用于采用第一方式接收来自终端1901的数据，并在数据接收失败的情况下，向终端1901发送针对该数据的响应消息。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到该通信系统190对应网元的功能描述，在此不再赘述。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，具体应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，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装置，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一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (52)

  1. 一种确定数据传输方式的方法，其特征在于，所述方法包括：
    终端采用第一方式向网络设备发送数据；
    在所述数据传输失败的情况下，所述终端根据接收到的针对所述数据的响应消息确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式；或者，
    在所述数据传输失败的情况下，所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式。
  2. 根据权利要求1所述的方法，其特征在于，
    所述响应消息为所述终端采用第一方式向网络设备发送数据之后，接收到的针对所述数据的响应消息；或者，
    所述响应消息为所述终端在采用第一方式向网络设备发送数据之前，接收到的针对所述数据的响应消息。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述数据传输失败的情况下，所述终端根据接收到的针对所述数据的响应消息确定所述终端重新传输所述数据采用的第二方式，包括：
    第一数值大于或等于第一阈值，所述终端根据所述响应消息确定所述第二方式，所述第一数值为所述终端采用所述第一方式向所述网络设备发送所述数据的次数。
  4. 根据权利要求3所述的方法，其特征在于，所述响应消息包括所述第一阈值的信息。
  5. 根据权利要求1或2所述的方法，其特征在于，所述响应消息包括第一指示信息，所述第一指示信息用于指示所述终端结束采用所述第一方式向所述网络设备发送所述数据。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，所述响应消息包括第二指示信息，所述第二指示信息用于指示所述第二方式。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，所述数据包括用户面数据；
    所述第一方式为携带用户面数据的两步随机接入方式；所述第二方式为四步随机接入方式，或者提前数据传输EDT方式。
  8. 根据权利要求1-6中任一项所述的方法，其特征在于，
    所述第一方式为基于竞争的免授权传输方式；所述第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
  9. 根据权利要求5所述的方法，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式，所述响应消息为所述终端采用第一方式向网络设备发送数据之后接收到的针对所述数据的响应消息；
    所述终端根据接收到的针对所述数据的响应消息确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    若所述终端根据所述响应消息向所述网络设备发送所述数据后，在预设时间内，未接收到来自所述网络设备的确认信息，所述终端根据所述响应消息确定所述第二方式。
  10. 根据权利要求1所述的方法，其特征在于，在所述数据传输失败的情况下，所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    第一数值大于或等于第一阈值，所述终端根据所述预设条件确定所述第二方式；
    其中，所述第一数值为所述终端采用所述第一方式向所述网络设备发送所述数据的次数。
  11. 根据权利要求1所述的方法，其特征在于，在所述数据传输失败的情况下，所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式之前，所述方法还包括：
    所述终端接收来自所述网络设备的针对所述数据的响应消息；所述响应消息包括第一指示信息，所述第一指示信息用于指示所述终端结束采用所述第一方式向所述网络设备发送所述数据。
  12. 根据权利要求11所述的方法，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式，所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    若所述终端根据所述响应消息向所述网络设备发送所述数据后，在预设时间内，未接收到来自所述网络设备的确认消息，所述终端根据所述预设条件确定所述第二方式。
  13. 根据权利要求1、10、11或12中任一项所述的方法，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式；
    所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    所述数据的传输块大小小于或等于第二阈值，所述第二方式为EDT方式；
    所述数据的传输块大小大于或等于第二阈值，所述第二方式为四步随机接入方式。
  14. 根据权利要求1、10或11中任一项所述的方法，其特征在于，所述第一方式为基于竞争的免授权传输方式；
    所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    所述数据的传输块大小小于或等于第三阈值，所述第二方式为携带用户面数据的两步随机接入方式；
    所述数据的传输块大小大于或等于第三阈值，所述第二方式为两步随机接入方式。
  15. 根据权利要求1、10或11中任一项所述的方法，其特征在于，所述第一方式为基于竞争的免授权传输方式；
    所述终端根据预设条件确定所述终端重新传输所述数据中的至少一部分数据所采用的第二方式，包括：
    所述终端测量的参考信号接收功率大于或等于第四阈值，且所述数据的传输块大小小于或等于第五阈值，所述第二方式为携带用户面数据的两步随机接入方式；
    所述终端测量的参考信号接收功率大于或等于第四阈值，且所述数据的传输块大小大于或等于第五阈值，所述第二方式为两步随机接入方式；
    所述终端测量的参考信号接收功率小于或等于第四阈值，且所述数据的传输块大小小于或等于第五阈值，所述第二方式为EDT方式；
    所述终端测量的参考信号接收功率小于或等于第四阈值，且所述数据的传输块大小大于或等于第五阈值，所述第二方式为四步随机接入方式。
  16. 根据权利要求7所述的方法，其特征在于，所述响应消息包括第三指示信息，所述第三指示信息用于指示所述终端根据响应消息发送第三消息时，是否携带所述用户面数据。
  17. 根据权利要求1-9中任一项所述的方法，其特征在于，第三指示信息为资源指示信息，所述资源指示信息所指示的资源的大小用于确定所述终端根据响应消息发送第三消息时，是否携带用户面数据。
  18. 一种确定数据传输方式的方法，其特征在于，所述方法包括：
    网络设备采用第一方式接收来自终端的数据；
    所述数据接收失败的情况下，所述网络设备向所述终端发送针对所述数据的响应消息，所述响应消息用于指示所述终端确定重新传输所述数据中的至少一部分数据所采用的第二方式。
  19. 根据权利要求18所述的方法，其特征在于，所述响应消息包括第一阈值的信息；所述第一阈值为所述终端采用所述第一方式向所述网络设备发送所述数据的最大次数。
  20. 根据权利要求18所述的方法，其特征在于，所述响应消息包括第一指示信息，所述第一指示信息用于指示所述终端结束采用所述第一方式向所述网络设备发送所述数据。
  21. 根据权利要求18-20中任一项所述的方法，其特征在于，所述响应消息包括第二指示信息，所述第二指示信息用于指示所述第二方式。
  22. 根据权利要求18-21中任一项所述的方法，其特征在于，所述数据包括用户面数据；
    所述第一方式为携带用户面数据的两步随机接入方式；所述第二方式为四步随机接入方式，或者提前数据传输EDT方式。
  23. 根据权利要求18-21中任一项所述的方法，其特征在于，
    所述第一方式为基于竞争的免授权传输方式；所述第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
  24. 根据权利要求22所述的方法，其特征在于，所述响应消息包括第三指示信息，所述第三指示信息用于指示所述终端根据所述响应消息发送第三消息时，是否携带所述用户面数据。
  25. 根据权利要求18-23中任一项所述的方法，其特征在于，第三指示信息为资源指示信息，所述资源指示信息所指示的资源的大小用于确定所述终端根据响应消息发送第三消息时，是否携带用户面数据。
  26. 一种通信装置，其特征在于，所述通信装置包括：发送模块和处理模块；
    所述发送模块，用于采用第一方式向网络设备发送数据；
    所述处理模块，用于在所述数据传输失败的情况下，根据接收到的针对所述数据 的响应消息确定所述通信装置重新传输所述数据中的至少一部分数据所采用的第二方式；或者，
    所述处理模块，用于在所述数据传输失败的情况下，根据预设条件确定所述通信装置重新传输所述数据中的至少一部分数据所采用的第二方式。
  27. 根据权利要求26所述的通信装置，其特征在于，
    所述响应消息为所述通信装置采用第一方式向网络设备发送数据之后，接收到的针对所述数据的响应消息；或者，
    所述响应消息为所述通信装置在采用第一方式向网络设备发送数据之前，接收到的针对所述数据的响应消息。
  28. 根据权利要求26或27所述的通信装置，其特征在于，在所述数据传输失败的情况下，所述处理模块，具体用于第一数值大于或等于第一阈值，根据所述响应消息确定所述第二方式，所述第一数值为所述通信装置采用所述第一方式向所述网络设备发送所述数据的次数。
  29. 根据权利要求28所述的通信装置，其特征在于，所述响应消息包括所述第一阈值的信息。
  30. 根据权利要求26或27所述的通信装置，其特征在于，所述响应消息包括第一指示信息，所述第一指示信息用于指示所述通信装置结束采用所述第一方式向所述网络设备发送所述数据。
  31. 根据权利要求26-30中任一项所述的通信装置，其特征在于，所述响应消息包括第二指示信息，所述第二指示信息用于指示所述第二方式。
  32. 根据权利要求26-31中任一项所述的通信装置，其特征在于，所述数据包括用户面数据；
    所述第一方式为携带用户面数据的两步随机接入方式；所述第二方式为四步随机接入方式，或者提前数据传输EDT方式。
  33. 根据权利要求26-31中任一项所述的通信装置，其特征在于，
    所述第一方式为基于竞争的免授权传输方式；所述第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
  34. 根据权利要求30所述的通信装置，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式，所述响应消息为所述通信装置采用第一方式向网络设备发送数据之后接收到的针对所述数据的响应消息；
    所述处理模块，具体用于若所述通信装置根据所述响应消息向所述网络设备发送所述数据后，在预设时间内，未接收到来自所述网络设备的确认信息，根据所述响应消息确定所述第二方式。
  35. 根据权利要求26所述的通信装置，其特征在于，在所述数据传输失败的情况下，所述处理模块，具体用于第一数值大于或等于第一阈值，根据所述预设条件确定所述第二方式；
    其中，所述第一数值为所述通信装置采用所述第一方式向所述网络设备发送所述数据的次数。
  36. 根据权利要求26所述的通信装置，其特征在于，所述通信装置还包括：接收 模块；
    所述接收模块，用于接收来自所述网络设备的针对所述数据的响应消息；所述响应消息包括第一指示信息，所述第一指示信息用于指示所述通信装置结束采用所述第一方式向所述网络设备发送所述数据。
  37. 根据权利要求36所述的通信装置，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式，所述处理模块，具体用于若所述通信装置根据所述响应消息向所述网络设备发送所述数据后，在预设时间内，未接收到来自所述网络设备的确认消息，根据所述预设条件确定所述第二方式。
  38. 根据权利要求26、35、36或37中任一项所述的通信装置，其特征在于，所述第一方式为携带用户面数据的两步随机接入方式；
    所述数据的传输块大小小于或等于第二阈值，所述第二方式为EDT方式；
    所述数据的传输块大小大于或等于第二阈值，所述第二方式为四步随机接入方式。
  39. 根据权利要求26、35或36中任一项所述的通信装置，其特征在于，所述第一方式为基于竞争的免授权传输方式；
    所述数据的传输块大小小于或等于第三阈值，所述第二方式为携带用户面数据的两步随机接入方式；
    所述数据的传输块大小大于或等于第三阈值，所述第二方式为两步随机接入方式。
  40. 根据权利要求26、35或36中任一项所述的通信装置，其特征在于，所述第一方式为基于竞争的免授权传输方式；
    所述通信装置测量的参考信号接收功率大于或等于第四阈值，且所述数据的传输块大小小于或等于第五阈值，所述第二方式为携带用户面数据的两步随机接入方式；
    所述通信装置测量的参考信号接收功率大于或等于第四阈值，且所述数据的传输块大小大于或等于第五阈值，所述第二方式为两步随机接入方式；
    所述通信装置测量的参考信号接收功率小于或等于第四阈值，且所述数据的传输块大小小于或等于第五阈值，所述第二方式为EDT方式；
    所述通信装置测量的参考信号接收功率小于或等于第四阈值，且所述数据的传输块大小大于或等于第五阈值，所述第二方式为四步随机接入方式。
  41. 根据权利要求32所述的通信装置，其特征在于，所述响应消息包括第三指示信息，所述第三指示信息用于指示所述通信装置根据响应消息发送第三消息时，是否携带所述用户面数据。
  42. 根据权利要求26-34中任一项所述的通信装置，其特征在于，第三指示信息为资源指示信息，所述资源指示信息所指示的资源的大小用于确定所述通信装置根据响应消息发送第三消息时，是否携带用户面数据。
  43. 一种通信装置，其特征在于，所述通信装置包括：接收模块和发送模块；
    所述接收模块，用于采用第一方式接收来自终端的数据；
    所述发送模块，用于在所述数据接收失败的情况下，向所述终端发送针对所述数据的响应消息，所述响应消息用于指示所述终端确定重新传输所述数据中的至少一部分数据所采用的第二方式。
  44. 根据权利要求43所述的通信装置，其特征在于，所述响应消息包括第一阈值 的信息；所述第一阈值为所述终端采用所述第一方式向所述通信装置发送所述数据的最大次数。
  45. 根据权利要求43所述的通信装置，其特征在于，所述响应消息包括第一指示信息，所述第一指示信息用于指示所述终端结束采用所述第一方式向所述通信装置发送所述数据。
  46. 根据权利要求43-45中任一项所述的通信装置，其特征在于，所述响应消息包括第二指示信息，所述第二指示信息用于指示所述第二方式。
  47. 根据权利要求43-46中任一项所述的通信装置，其特征在于，所述数据包括用户面数据；
    所述第一方式为携带用户面数据的两步随机接入方式；所述第二方式为四步随机接入方式，或者提前数据传输EDT方式。
  48. 根据权利要求43-46中任一项所述的通信装置，其特征在于，
    所述第一方式为基于竞争的免授权传输方式；所述第二方式为四步随机接入方式、EDT方式、两步随机接入方式或携带用户面数据的两步随机接入方式。
  49. 根据权利要求47所述的通信装置，其特征在于，所述响应消息包括第三指示信息，所述第三指示信息用于指示所述终端根据所述响应消息发送第三消息时，是否携带所述用户面数据。
  50. 根据权利要求43-48中任一项所述的通信装置，其特征在于，第三指示信息为资源指示信息，所述资源指示信息所指示的资源的大小用于确定所述终端根据响应消息发送第三消息时，是否携带用户面数据。
  51. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1至17中任一项所述的方法，或者执行如权利要求18至25中任一项所述的方法。
  52. 一种计算机可读介质，其上存储有计算机程序或指令，其特征在于，所述计算机程序或指令被执行时使得计算机执行如权利要求1至17中任一项所述的方法或者如权利要求18至25中任一项所述的方法。
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