WO2023020352A1 - 一种数据传输方法及相关装置 - Google Patents

一种数据传输方法及相关装置 Download PDF

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Publication number
WO2023020352A1
WO2023020352A1 PCT/CN2022/111445 CN2022111445W WO2023020352A1 WO 2023020352 A1 WO2023020352 A1 WO 2023020352A1 CN 2022111445 W CN2022111445 W CN 2022111445W WO 2023020352 A1 WO2023020352 A1 WO 2023020352A1
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WIPO (PCT)
Prior art keywords
delay value
cell
coverage area
scheduling
network device
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PCT/CN2022/111445
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English (en)
French (fr)
Inventor
雷珍珠
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展讯半导体(南京)有限公司
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Publication of WO2023020352A1 publication Critical patent/WO2023020352A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present application relates to the technical field of wireless communication, and in particular to a data transmission method and a related device.
  • the terminal equipment has the global navigation satellite system (global navigation satellite system, GNSS) positioning capability, that is, the terminal equipment can obtain its own information based on ephemeris information and GNSS.
  • the TA value sent uplink is reported to the network device, and then according to the scheduling delay value indicated by the network device, the scheduling delay value when the terminal device performs data transmission is determined, so as to complete the uplink data transmission of the terminal device.
  • the terminal device does not have the GNSS capability and cannot report its own location information or the TA value sent uplink to the network device. Therefore, the network cannot accurately determine the scheduling delay value of the terminal device for data transmission. . In this case, in order to ensure the reliability of data transmission, the network will use a relatively large scheduling delay value for data scheduling, which will increase the data transmission delay of the terminal device.
  • An embodiment of the present application provides a data transmission method and a related device, which perform uplink data transmission with a first network device according to the obtained scheduling delay value, wherein, according to the first delay value, or according to the first delay value
  • the scheduling delay value determined with the second delay value has higher accuracy, and can greatly reduce the delay of data transmission of the terminal device.
  • the embodiment of the present application provides a data transmission method applied to a terminal device, and the method includes:
  • the scheduling delay value is determined according to a first delay value, or the scheduling delay value is determined according to a first delay value and a second delay value;
  • the first delay value is The round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, the second delay value is not less than the public timing advance value broadcast by the first cell, and the second cell The coverage area of the first cell overlaps with the coverage area of the first cell;
  • a data transmission method applied to a terminal device side is provided.
  • the terminal device first acquires a scheduling delay value, and then performs uplink data transmission with a first network device according to the scheduling delay value.
  • the first network device is a network device corresponding to the first cell, such as a network device such as a base station in the first cell, and the coverage area of the first cell overlaps with the coverage area of the second cell, specifically, the coverage area of the first cell overlaps with the coverage area of the second cell.
  • the coverage of the second cell may partially overlap, or the coverage of the first cell may completely include the coverage of the second cell, and the terminal device may be located in the overlapping portion of the coverage of the first cell and the second cell.
  • the scheduling delay value obtained above is determined by the first delay value, or determined by the first delay value and the second delay value, wherein the first delay value is from the satellite corresponding to the first cell to the second delay value
  • the second delay value is not less than the public timing advance value broadcast by the first cell.
  • the acquired scheduling delay value is used for the delay of uplink data transmission with the first network device, wherein the first delay value, or the first delay value and the second delay
  • the accuracy of the scheduling delay value obtained by determining the value is relatively high, which can greatly reduce the delay of data transmission of the terminal equipment.
  • the obtaining the scheduling delay value includes:
  • the first network device is a network device corresponding to the first cell
  • the second network device is a network device corresponding to the second cell network equipment.
  • the terminal device receives the scheduling delay value from the first network device or the second network device.
  • the scheduling delay value obtained through the embodiment of the present application has high accuracy, and can greatly reduce the delay of data transmission of the terminal device.
  • the method also includes:
  • the first network device being a network device corresponding to the first cell
  • the second network device being the first network device being the first network device Network equipment corresponding to the second cell
  • the acquisition of the scheduling delay value includes:
  • the scheduling delay value is determined according to the first delay value and the second delay value.
  • the terminal device receives the first delay value from the first network device or the second network device, and then according to the first The delay value and the second delay value determine a scheduling delay value, and the scheduling delay value is used for data transmission between the terminal device and the first network device.
  • the scheduling delay value determined by the first delay value and the second delay value has high precision, and can greatly reduce the delay of data transmission of the terminal device.
  • the scheduling delay value is a sum of the first delay value and the second delay value.
  • the scheduling delay value is determined by the first delay value and the second delay value, and specifically may be a sum of the first delay value and the second delay value.
  • the scheduling delay value obtained through the embodiment of the present application has high accuracy, and is used for data transmission of the terminal device, which can greatly reduce the time delay of the data transmission of the terminal device.
  • the method also includes:
  • the second delay value is acquired through a broadcast message corresponding to the first cell.
  • the second delay value is obtained by receiving the broadcast message corresponding to the first cell, and the second delay value is not less than the public timing advance value broadcast by the first cell.
  • the second delay value A common timing advance value that may be broadcast for the first cell.
  • the second delay value obtained in the embodiment of the present application can make the scheduling delay value determined based on the first delay value and the second delay value more accurate, and can greatly reduce the delay of data transmission of the terminal device.
  • the first delay value is determined according to location information of a coverage area of the second cell and location information of a satellite corresponding to the first cell.
  • the first delay value is determined by the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell, and the first delay value is from the satellite corresponding to the first cell to the second cell.
  • the first delay value obtained by the embodiment of the present application can make the scheduling delay value determined based on the first delay value and the second delay value more accurate, and can greatly reduce the delay of data transmission of the terminal device.
  • the performing uplink data transmission with the first network device according to the scheduling delay value includes:
  • a possible specific implementation manner of performing uplink data transmission with the first network device according to the scheduling delay value is provided, specifically, the terminal device determines the time domain position of the uplink transmission resource according to the scheduling delay value, And the uplink data is sent to the first network device at the time domain position of the uplink transmission resource, thereby greatly reducing the time delay of data transmission of the terminal device.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a data transmission method applied to a first network device, and the method includes:
  • a scheduling delay value is determined according to the first delay value, or according to the first delay value and the second delay value, and the scheduling delay value is used for scheduling uplink data;
  • the first network device is For the network device corresponding to the first cell, the first delay value is a round-trip transmission delay value from the satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the second delay value is not is less than the public timing advance value broadcast by the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell; sending the scheduling delay value to the terminal device;
  • the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value is used
  • the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell.
  • a data transmission method applied to the first network device side is provided.
  • the first network device firstly uses the first delay value, or, according to the first delay value and the second delay value, Determine the scheduling delay value, and then send the scheduling delay value to the terminal device.
  • the first network device is a network device corresponding to the first cell, such as a network device such as a base station in the first cell
  • a terminal device is a device that establishes a dual connection between the first cell and the second cell.
  • the coverage area of the first cell and the second cell The coverage areas of the cells overlap. Specifically, the coverage area of the first cell and the coverage area of the second cell may partially overlap, or the coverage area of the first cell completely includes the coverage area of the second cell.
  • the terminal device may be located in the second cell. In the overlapping portion of the coverage areas of the first cell and the second cell.
  • the above-mentioned first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the above-mentioned second delay value is not less than the public timing advance value broadcast by the first cell, and the above-mentioned
  • the determined scheduling delay value is a delay value for uplink data transmission between the terminal device and the first network device.
  • the first network device sends the first delay value to the terminal device.
  • the scheduling delay value or the first delay value sent to the terminal device has high accuracy, which can greatly reduce the delay of data transmission of the terminal device.
  • the method also includes:
  • the second network device is a network device corresponding to the second cell
  • the first delay value is determined according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the first network device receives the location information of the coverage area of the second cell sent by the second network device, and then The first delay value is determined according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the scheduling delay value determined by using the first delay value obtained in the embodiment of the present application has high precision, which can greatly reduce the delay of data transmission of the terminal device.
  • the method also includes:
  • the second delay value is acquired through a broadcast message corresponding to the first cell.
  • the second delay value is obtained by receiving the broadcast message corresponding to the first cell, and the second delay value is not less than the public timing advance value broadcast by the first cell.
  • the second delay value A common timing advance value that may be broadcast for the first cell.
  • the second delay value obtained in the embodiment of the present application can make the scheduling delay value determined based on the first delay value and the second delay value more accurate, and can greatly reduce the delay of data transmission of the terminal device.
  • the determining the scheduling delay value according to the first delay value, or according to the first delay value and the second delay value includes:
  • the sum of the first delay value and the second delay value is used as the scheduling delay value.
  • the first delay value is determined as the scheduling delay value, or the first delay value, the second delay value
  • the sum of the delay values is determined as the scheduling delay value.
  • the sending the scheduling delay value to the terminal device includes:
  • radio resource control signaling or media access layer control signaling sending radio resource control signaling or media access layer control signaling to the terminal device, where the radio resource control signaling or the media access layer control signaling is used to indicate the scheduling delay to the terminal device value.
  • a possible specific implementation manner of sending the scheduling delay value to the terminal device is provided, specifically, sending radio resource control signaling or media access layer control signaling to the terminal device for sending
  • the terminal device indicates the scheduling delay value determined by the first network device.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a data transmission method, which is applied to a second network device, and the method includes:
  • the scheduling delay value is the coverage from the satellite corresponding to the first cell to the second cell
  • the round-trip transmission delay value of the reference point in the area, the second delay value is not less than the public timing advance value broadcast by the first cell, the coverage area of the second cell is different from the coverage area of the first cell Overlapping; sending the scheduling delay value to the terminal device, and the scheduling delay value is used for scheduling uplink data;
  • the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value is used
  • the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • the first network device is a network device corresponding to the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell,
  • the location information of the coverage area of the second cell is used to determine a first delay value, and the first delay value is a distance from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell
  • the round trip delay value is a distance from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell.
  • a data transmission method applied to the second network device side is provided.
  • the second network device firstly uses the first delay value, or, according to the first delay value and the second delay value, Determine the scheduling delay value, and then send the scheduling delay value to the terminal device.
  • the second network device is a network device corresponding to the second cell, such as a network device such as a base station in the second cell
  • the terminal device is a device that establishes a dual connection between the first cell and the second cell.
  • the coverage area of the first cell and the second cell The coverage areas of the cells overlap. Specifically, the coverage area of the first cell and the coverage area of the second cell may partially overlap, or the coverage area of the first cell completely includes the coverage area of the second cell.
  • the terminal device may be located in the second cell. In the overlapping portion of the coverage areas of the first cell and the second cell.
  • the above-mentioned first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the above-mentioned second delay value is not less than the public timing advance value broadcast by the first cell, and the above-mentioned
  • the determined scheduling delay value is a delay value for uplink data transmission between the terminal device and the first network device.
  • the second network device sends the first delay value to the terminal device, where the first delay value is used to determine the scheduling delay value.
  • the second network device sends the location information of the coverage area of the second cell to the first network device
  • the first network device is a network device corresponding to the first cell, such as a network device such as a base station of the first cell, and the location information of the second cell
  • the location information of the coverage area is used to determine the first delay value.
  • the determining the scheduling delay value according to the first delay value, or according to the first delay value and the second delay value includes:
  • the first delay value is determined according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell;
  • the sum of the first delay value and the second delay value is used as the scheduling delay value; the first delay value is based on the location information of the coverage area of the second cell and the The position information of the satellite corresponding to the first cell is determined, and the second delay value is obtained through a broadcast message corresponding to the first cell.
  • the first delay value is determined as the scheduling delay value, or the first delay value, the second delay value
  • the sum of the delay values is determined as the scheduling delay value.
  • the first delay value is obtained by determining the position information of the coverage area of the second cell and the position information of the satellite corresponding to the first cell, and the first delay value is the coverage area from the satellite corresponding to the first cell to the second cell
  • the round-trip transmission delay value of the reference point within, the first delay value is used to determine the scheduling delay value;
  • the second delay value is obtained by receiving the broadcast message corresponding to the first cell, and the second delay value is not less than the first
  • the second delay value may be a public timing advance value broadcast by the first cell.
  • the sending the scheduling delay value to the terminal device includes:
  • a possible specific implementation manner of sending the scheduling delay value to the terminal device is provided, specifically, sending a broadcast message or sending a radio resource control signaling to the terminal device or sending a media access message to the terminal device
  • the layer control signaling is used to indicate the scheduling delay value determined by the second network device.
  • the scheduling delay value sent to the terminal device has high accuracy, which can greatly reduce the time delay of data transmission by the terminal device.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a data transmission device, which includes:
  • An acquisition unit configured to acquire a scheduling delay value; the scheduling delay value is determined according to a first delay value, or, the scheduling delay value is determined according to a first delay value and a second delay value; the second delay value A delay value is a round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the second delay value is not less than the public timing advance value broadcast by the first cell, The coverage area of the second cell overlaps with the coverage area of the first cell;
  • a transmission unit configured to perform uplink data transmission with the first network device according to the first scheduling delay value.
  • the obtaining unit is specifically configured to receive the scheduling delay value from the first network device or the second network device, and the first network device corresponds to the first cell network device, the second network device is the network device corresponding to the second cell.
  • the device further includes a determining unit:
  • the obtaining unit is specifically configured to receive the first delay value from the first network device or the second network device, the first network device is a network device corresponding to the first cell, the The second network device is a network device corresponding to the second cell;
  • the determining unit is configured to determine the scheduling delay value according to the first delay value and the second delay value.
  • the scheduling delay value is a sum of the first delay value and the second delay value.
  • the obtaining unit is further configured to obtain the second delay value through a broadcast message corresponding to the first cell.
  • the first delay value is determined according to location information of a coverage area of the second cell and location information of a satellite corresponding to the first cell.
  • the transmission unit is specifically configured to determine a time-domain position of an uplink transmission resource according to the scheduling delay value, and send a message to the first network device at the time-domain position of the uplink transmission resource upstream data.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a data transmission device, which includes:
  • a determining unit configured to determine a scheduling delay value according to the first delay value, or according to the first delay value and the second delay value, and the scheduling delay value is used for scheduling uplink data;
  • the first network device is the network device corresponding to the first cell, the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value is 2.
  • the delay value is not less than the public timing advance value broadcast by the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • a sending unit configured to send the scheduled time to the terminal device extension;
  • a sending unit configured to send a first delay value to the terminal device, where the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value
  • a delay value is used to determine a scheduling delay value, the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell.
  • the device further includes a receiving unit:
  • the receiving unit is configured to receive the location information of the coverage area of the second cell sent by the second network device;
  • the second network device is a network device corresponding to the second cell;
  • the determining unit is configured to determine the first delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the receiving unit is further configured to obtain the second delay value through a broadcast message corresponding to the first cell.
  • the determining unit is specifically configured to use the first delay value as the scheduling delay value
  • the determining unit is specifically configured to use a sum of the first delay value and the second delay value as the scheduling delay value.
  • the sending unit is specifically configured to send radio resource control signaling or media access layer control signaling to the terminal device, the radio resource control signaling or the media access Layer control signaling is used to indicate the scheduling delay value to the terminal device.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a data transmission device, which includes:
  • the determining unit is configured to determine a scheduling delay value according to the first delay value, or according to the first delay value and the second delay value, and the first delay value corresponds to the satellite arrival time of the first cell.
  • the round-trip transmission delay value of a reference point in the coverage area of the second cell, the second delay value is not less than the public timing advance value broadcast by the first cell, the coverage area of the second cell is different from the first cell.
  • the coverage area of a cell overlaps; the sending unit is used to send the scheduling delay value to the terminal equipment, and the scheduling delay value is used for scheduling uplink data;
  • a sending unit configured to send a first delay value to the terminal device, where the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value
  • a delay value is used to determine a scheduling delay value, the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • a sending unit configured to send the location information of the coverage area of the second cell to the first network device;
  • the first network device is a network device corresponding to the first cell, and the coverage area of the second cell is the same as that of the first cell
  • the coverage area of the second cell overlaps, and the location information of the coverage area of the second cell is used to determine a first delay value, and the first delay value is the coverage area from the satellite corresponding to the first cell to the second cell
  • the round-trip transmission delay value of the reference point in configured to send the location information of the coverage area of the second cell to the first network device;
  • the determining unit is specifically configured to use the first delay value as the scheduling delay value; the first delay value is based on the coverage area of the second cell determining the position information and the position information of the satellite corresponding to the first cell; or,
  • the determining unit is specifically configured to use the sum of the first delay value and the second delay value as the scheduling delay value; the first delay value is based on the coverage area of the second cell The location information of the first cell and the location information of the satellite corresponding to the first cell are determined, and the second delay value is obtained through a broadcast message corresponding to the first cell.
  • the sending unit is specifically configured to send a broadcast message or send radio resource control signaling to the terminal device or send media access layer control signaling to the terminal device; the broadcast The message or the radio resource control signaling or the medium access layer control signaling is used to indicate the scheduling delay value.
  • the reference point is the farthest point within the coverage area from the satellite corresponding to the first cell to the second cell.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell are in the same satellite orbit, or in different satellite orbits.
  • the embodiment of the present application provides a communication device, the communication device includes a processor and a memory; the memory is used to store computer-executable instructions; the processor is used to execute the computer-executable instructions stored in the memory, Make the communication device execute the method according to the above first aspect and any possible implementation manner, or enable the communication device to execute the method according to the above second aspect and any possible implementation manner, or make the The communication device executes the method according to the above third aspect and any possible implementation manner.
  • the communication device further includes a transceiver, configured to receive signals or send signals.
  • the embodiment of the present application provides a communication device, the communication device includes a logic circuit and an interface; the logic circuit is coupled to the interface; the interface is used to input and/or output code instructions, and the logic circuit uses To execute the code instructions, so that the communication device executes the method according to the above first aspect and any possible implementation manner, or causes the communication device to execute the method according to the above second aspect and any possible implementation manner method, or make the communication device execute the method according to the above third aspect and any possible implementation manner.
  • the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium is used to store instructions or computer programs; when the instructions or the computer programs are executed, the first aspect and the The method described in any possible implementation manner is implemented, or the method described in the second aspect and any possible implementation manner is realized, or the method described in the third aspect and any possible implementation manner is realized. method is implemented.
  • the embodiment of the present application provides a computer program product, the computer program product includes instructions or computer programs; when the instructions or the computer programs are executed, the first aspect and any possible implementation The method described in the manner is realized, or the method described in the second aspect and any possible implementation manner is realized, or the method described in the third aspect and any possible implementation manner is realized.
  • the embodiment of the present application provides a chip
  • the chip includes a processor
  • the processor is used to execute instructions
  • the chip performs the first aspect and any one of The method described in a possible implementation manner, or make the chip execute the method described in the second aspect and any possible implementation manner, or make the chip execute the method described in the third aspect and any possible implementation manner Methods.
  • the chip further includes a communication interface, and the communication interface is used for receiving signals or sending signals.
  • the embodiment of the present application provides a system, the system includes at least one of the following: the data transmission device described in the fourth aspect, the data transmission device described in the fifth aspect, and the data transmission device described in the sixth aspect
  • the process of sending information and/or receiving information in the above method can be understood as the process of outputting information by the processor, and and/or, the process by which a processor receives incoming information.
  • the processor may output information to a transceiver (or a communication interface, or a sending module) for transmission by the transceiver. After the information is output by the processor, additional processing may be required before reaching the transceiver.
  • the transceiver or communication interface, or sending module
  • the information may require other processing before being input to the processor.
  • the sending information mentioned in the foregoing method can be understood as the processor outputting information.
  • receiving information may be understood as the processor receiving input information.
  • the above-mentioned processor may be a processor dedicated to executing these methods, or may execute computer instructions in the memory
  • a processor such as a general-purpose processor, to execute these methods.
  • the above-mentioned memory can be a non-transitory (non-transitory) memory, such as a read-only memory (Read Only Memory, ROM), which can be integrated with the processor on the same chip, or can be respectively arranged on different chips.
  • ROM read-only memory
  • the embodiment does not limit the type of the memory and the arrangement of the memory and the processor.
  • the above at least one memory is located outside the device.
  • the at least one memory is located within the device.
  • part of the memory of the at least one memory is located inside the device, and another part of the memory is located outside the device.
  • processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.
  • FIG. 1 is a schematic diagram of an NTN scenario provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a scenario of a scheduling delay provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a dual connection scenario provided by an embodiment of the present application.
  • FIG. 4 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • FIG. 5 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application.
  • FIG. 6 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application.
  • FIG. 7 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another data transmission device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another data transmission device provided by the embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application.
  • the occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.
  • At least one (item) means one or more
  • “multiple” means two or more
  • at least two (items) means two or three And three or more
  • "and/or” is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, "A and/or B” can mean: only A exists, only B exists, and A exists at the same time and B, where A and B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (piece) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c ", where a, b, c can be single or multiple.
  • This application provides a data transmission method, specifically a data transmission method applicable to NTN communication scenarios.
  • a data transmission method specifically a data transmission method applicable to NTN communication scenarios.
  • some knowledge related to NTN data transmission will be introduced below.
  • Satellite communication has the characteristics of long communication distance, large coverage area, and flexible networking. It can provide communication services for both fixed terminals and various mobile terminals. Since the traditional terrestrial network cannot provide seamless coverage for terminal equipment, especially in places where base stations cannot be deployed in the sea, desert, and air, NTN is introduced into the fifth generation (The 5th Generation, 5G) mobile communication system. By deploying base stations or part of base station functions on high-altitude platforms or satellites, seamless coverage is provided for terminal equipment.
  • 5G The 5th Generation
  • high-altitude platforms or satellites are less affected by natural disasters, which can improve the reliability of 5G systems.
  • satellites cover the ground with different beams to form satellite cells, and a certain terminal device can be covered by multiple satellite cells at the same time.
  • the cellular network system may include but not limited to: 5G system, Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD) system, advanced long term evolution (Advanced long term evolution, LTE-A) system, new air interface (New Radio, NR) system, evolution system of NR system, LTE (LTE based access to unlicensed spectrum (LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on the unlicensed frequency band, Universal Mobile Telecommunication System (UMTS), global interconnected microwave access ( Worldwide
  • the satellite communication system may include various non-terrestrial network systems, for example, a satellite or an unmanned aircraft system (unmanned aircraft system, UAS) platform, and other networks for wireless frequency transmission, which will not be listed here.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • the satellite communication system may include various non-terrestrial network systems, for example, a satellite or an unmanned aircraft system (unmanned aircraft system, UAS) platform, and other networks for wireless frequency transmission, which will not be listed here.
  • the NTN system can specifically be a satellite communication system or other non-terrestrial network system.
  • the data transmission method in this solution can be applied to satellite communication category.
  • FIG. 1 is a schematic diagram of an NTN scenario provided by an embodiment of the present application.
  • 104 represents a coverage area of a cell of a satellite 101 , and one or more terminal devices 102 may exist in the coverage area.
  • the coverage area 104 of the cell may be the area covered by one or more beams of the satellite, or the same area as the cell level in the NR system.
  • the ground terminal equipment 102 accesses the network through the 5G new air interface, and the 5G base station can be deployed on the satellite, and is connected to the 5G core network on the ground through a wireless link and the ground station 103 .
  • Terminal equipment Mobile equipment that supports 5G new air interface, typically mobile equipment such as user terminal and wearable equipment. It can access the satellite network through the air interface and initiate services such as calling and surfing the Internet.
  • 5G base station It mainly provides wireless access services, dispatches wireless resources to access terminals, and provides reliable wireless transmission protocols and data encryption protocols.
  • 5G core network including user access control, mobility management, session management, user security authentication, billing and other services. It consists of multiple functional units, which can be divided into functional entities of the control plane and the data plane.
  • Ground station responsible for forwarding signaling and business data between the satellite base station and the 5G core network.
  • 5G NR the wireless link between user equipment and base stations
  • Xn interface It is the interface between the 5G base station and the base station, mainly used for signaling interaction such as handover.
  • NG interface It is the interface between the 5G base station and the 5G core network, mainly exchanging signaling such as the non-access stratum (Non-Access Stratum, NAS) of the core network, and user service data.
  • Non-Access Stratum Non-Access Stratum, NAS
  • the technical solution provided by this application mainly involves two executive entities, network equipment and terminal equipment, and can be applied to communication systems such as 5G, especially in the data transmission process of non-terrestrial networks.
  • the terminal equipment involved in the embodiment of the present application includes but is not limited to connection via wired lines, such as via public switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection and/or another data connection network; and/or via a wireless interface, such as: for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), such as a handheld digital television broadcast (Digital Video Broadcast-Handheld, DVB-H) digital television network, satellite network, AM-FM (Amplitude Modulation-Frequency Modulation, AM-FM) broadcast transmitter of the network; and/or another terminal equipment device configured to receive/transmit communication signals; and/or Internet of Things (IoT) devices.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area network
  • AM-FM Amplitude Modulation-Frequency Modulation
  • AM-FM Internet of Things
  • a terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or “mobile terminal”.
  • Examples of such terminal equipment include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet Personal digital assistants (PDAs) with intranet access, Web browsers, organizers, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptops and/or palmtops type receivers or other electronic devices including radiotelephone transceivers.
  • PCS Personal Communications System
  • PDAs Internet Personal digital assistants
  • GPS Global Positioning System
  • Terminal equipment may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a PDA, a handheld device with wireless communication capabilities, a computing device, or a connected Other processing devices to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the 5G network or terminal devices in the future evolution of the public land mobile network (PLMN), etc.
  • PLMN public land mobile network
  • the network devices involved in the embodiments of this application can provide communication coverage in a specific geographical area, and can communicate with one or more terminal devices located in the coverage area, or can be used to communicate with one or more
  • the base station communicates (for example, the communication between the macro base station and the micro base station, such as an access point).
  • the network device may be a satellite, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, an evolved base station (evolved Node B, eNB) in an LTE system, or a base station in a 5G system or an NR system. Next generation node base station (gNB), and other satellite base stations and satellite relay nodes.
  • BTS Base Transceiver Station
  • eNB evolved Node B
  • gNB Next generation node base station
  • gNB Next generation node base station
  • the network device can also be an access point (access point, AP), a transport node (transport point, TRP), a central unit (central unit, CU) or other network entities, and can include some or all of the functions of the above network entities. All functions.
  • a device with a communication function in the network/system in the embodiments of the present application may be referred to as a communication device.
  • the communication equipment may include network equipment and terminal equipment with communication functions, and the network equipment and terminal equipment may be the specific equipment described above, which will not be repeated here; It includes other devices in the communication system, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the two descriptions of "satellite” and “satellite network device” are equivalent. That is, the satellite mentioned in this application means a collection of satellites and other network equipment related to satellite communication.
  • a cell in the NTN system may be the projection area of one beam of the satellite on the ground, or the projection area of multiple beams of the satellite on the ground, or it may be the projection area of one or more beams on the ground. Part of the projected area on the ground.
  • the terminal device In order to obtain uplink synchronization with the satellite, as shown in FIG. 2 , the terminal device needs to send a period of time in advance when performing uplink transmission, and this period of time can be called the TA value of the terminal device.
  • the TA value of the terminal device the RTT value between the terminal device and the satellite + the public TA value broadcast by the first cell + the TA value adjustment value indicated by the network.
  • the RTT value between the terminal device and the satellite needs to be calculated according to the ephemeris information and its own position information obtained by using GNSS.
  • K_offset an extra time interval
  • PUSCH Physical Uplink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • DCI Downlink Control Information
  • the terminal device will be instructed to have a scheduling delay value (the protocol is called K2), and the terminal device will send the PUSCH according to the indicated K2 value.
  • K2 scheduling delay value
  • the scheduling delay value of PDCCH scheduling PUSCH should be: K2+K_offset, so as to ensure that there is a large enough time interval between the receiving time of PDCCH and the sending time of PUSCH so that the terminal equipment can send in advance.
  • the terminal device reports its own location information or TA value to the network device, and the network device determines the scheduling delay value according to the information reported by the terminal device (the scheduling delay value is greater than or equal to the TA value of the uplink transmission) to complete The transmission of the uplink data of the terminal equipment.
  • the terminal device In the Non-GNSS scenario (that is, the terminal device does not have GNSS capabilities and cannot obtain its own location information), the terminal device cannot calculate the RTT between the terminal device and the serving satellite, and the terminal device is performing uplink transmission (for example, the terminal device sends the first A message Msg1) cannot determine the current TA value. This will cause the network to be unable to determine the scheduling delay value according to the TA value or the location information of the terminal equipment.
  • the network will configure a larger K_offset, which can be based on the largest RTT configuration in the coverage area of the cell or the coverage area of the beam, which will cause a large transmission delay.
  • FIG. 3 is a schematic diagram of a dual connectivity scenario provided by an embodiment of the present application.
  • C and D respectively represent the satellite corresponding to the first cell and the satellite corresponding to the second cell, and satellite C and satellite D are in the same satellite orbit or in different satellite orbits.
  • satellites C and D are Satellite D is plotted as an example in different satellite orbits.
  • A represents the point farthest from satellite C in the coverage area of the first cell;
  • B represents a point in the second cell, which can be the closest point to satellite C in the coverage area of the second cell, or the second Any fixed point relative to the satellite D within the coverage area of the cell (for example, the point closest to the satellite D, which is drawn as an example in FIG. 3 ).
  • the embodiment of the present application provides a new data transmission method, the data transmission method and the first network
  • the device performs uplink data transmission, wherein the scheduling delay value determined according to the first delay value, or according to the first delay value and the second delay value has high accuracy, which can greatly reduce the uplink transmission delay of the terminal device.
  • Figure 4 is an interactive schematic diagram of a data transmission method provided by the embodiment of the present application. The method includes but is not limited to the following steps:
  • Step 401 The second network device determines a first delay value.
  • the first delay value is a round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the coverage area of the first cell overlaps with the coverage area of the second cell.
  • the second network device in the embodiment of the present application is the network device corresponding to the second cell, such as the network device such as the base station of the second cell, which may specifically be a different device equipped with a processor that can be used to execute computer-executed instructions.
  • the second network The device may be a satellite, a base station or a gateway in a GSM system or a CDMA system, and specifically may be a base station in the satellite 101 in FIG. 1 above, which is used to determine the first delay value and send the first delay value to the terminal device .
  • the aforementioned reference point may be the closest point within the coverage area of the second cell to the satellite corresponding to the first cell, or may be a point within the coverage area of the second cell relative to the satellite corresponding to the second cell Any fixed point of position, the reference point determined in the embodiment of the present application, can make the accuracy of the first timing advance value higher.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell may be on the same satellite orbit, or may be on different satellite orbits.
  • the overlap between the coverage area of the first cell and the coverage area of the second cell may specifically mean that the coverage area of the first cell partially overlaps with the coverage area of the second cell, or that the coverage area of the first cell completely includes the coverage area of the second cell.
  • the terminal device may be located in an overlapping portion of the coverage areas of the first cell and the second cell.
  • step 401 includes: the second network device determining the first delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • Step 402 The second network device sends the first delay value to the terminal device.
  • the terminal device receives the first delay value sent by the second network device.
  • the second network device sends a broadcast message or sends a radio resource control signaling to the terminal device or sends a media access layer control signaling to the terminal device to indicate the second network device determined by the second network device.
  • a delay value is used by the terminal device to determine a scheduling delay value, and the scheduling delay value is used by the terminal device to schedule uplink data.
  • the terminal device in the embodiment of the present application is a device equipped with a processor that can be used to execute instructions executed by a computer.
  • the terminal device may be a mobile phone, a computer, a vehicle, a wearable device, etc., specifically the terminal device 102 in FIG. 1 above. , establishing a dual connection between the first cell and the second cell, for receiving a first delay value sent by the second network device, and determining a scheduling delay value according to the first delay value.
  • Step 403 The terminal device determines a scheduling delay value according to the first delay value and the second delay value.
  • the terminal device may determine the sum of the first delay value and the second delay value as the scheduling delay value.
  • the second delay value is obtained by receiving the broadcast message corresponding to the first cell, and the second delay value is not less than the public timing advance value broadcast by the first cell.
  • the second delay value may be The public timing advance value for the broadcast.
  • the determined scheduling delay value is a delay value of uplink transmission between the terminal device and the first network device.
  • the method provided in this embodiment also includes:
  • the terminal device determines the time domain position of the uplink transmission resource according to the above determined scheduling delay value, and sends uplink data to the first network device at the time domain position of the uplink transmission resource, thereby greatly reducing the time delay of the terminal device's uplink transmission.
  • the uplink data includes uplink data scheduled by downlink control information, or uplink data scheduled by random access response message, or HARQ acknowledgment message, or sounding reference signal, etc.
  • Figure 5 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application. The method includes but is not limited to the following steps:
  • Step 501 The second network device determines a scheduling delay value.
  • step 501 includes: the second network device determining the first delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the second network device obtains the second delay value by receiving the broadcast message corresponding to the first cell. Then, the second network device determines the sum of the obtained first delay value and the second delay value as the scheduling delay value.
  • the above-mentioned first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the above-mentioned second delay value is not less than the public timing advance value broadcast by the first cell
  • the second delay value may be a public timing advance value broadcast by the first cell
  • the scheduling delay value is a delay value for uplink transmission between the terminal device and the first network device.
  • the second network device is a network device corresponding to the second cell, such as a network device such as a base station in the second cell, and the coverage area of the first cell overlaps with the coverage area of the second cell.
  • the coverage area of the first cell may overlap with that of the second cell.
  • the coverage areas of the two cells partially overlap, or the coverage area of the first cell may completely include the coverage area of the second cell, and the terminal device may be located in the overlapping portion of the coverage areas of the first cell and the second cell.
  • the second network device in the embodiment of the present application is a different device equipped with a processor that can be used to execute computer-executed instructions.
  • the second network device can be a satellite, a base station or a gateway in a GSM system or a CDMA system, etc. Specifically, it can be The above-mentioned base station in the satellite 101 in FIG. 1 is used to determine the scheduling delay value and send the scheduling delay value to the terminal equipment.
  • the aforementioned reference point may be the closest point within the coverage area of the second cell to the satellite corresponding to the first cell, or may be a point within the coverage area of the second cell relative to the satellite corresponding to the second cell Any fixed point of position, the reference point determined in the embodiment of the present application, can make the accuracy of the first time delay value higher.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell may be on the same satellite orbit, or may be on different satellite orbits.
  • Step 502 the second network device sends the scheduling delay value to the terminal device.
  • the terminal device receives the scheduling delay value sent by the second network device.
  • the second network device sends a broadcast message or sends a radio resource control signaling to the terminal device or sends a media access layer control signaling to the terminal device, which is used to indicate the scheduling determined by the second network device delay value.
  • the scheduling delay value sent to the terminal device has high accuracy, and the scheduling delay value is used for the terminal device to schedule uplink data, which can greatly reduce the time delay for the terminal device to perform uplink transmission.
  • the terminal device in the embodiment of the present application is a device equipped with a processor that can be used to execute instructions executed by a computer.
  • the terminal device may be a mobile phone, a computer, a vehicle, a wearable device, etc., specifically the terminal device 102 in FIG. 1 above. , establishing a dual connection between the first cell and the second cell, for receiving the scheduling delay value sent by the second network device, and performing uplink transmission scheduling according to the scheduling delay value.
  • the method provided in this embodiment also includes:
  • the terminal device determines the time domain position of the uplink transmission resource according to the above determined scheduling delay value, and sends uplink data to the first network device at the time domain position of the uplink transmission resource, thereby greatly reducing the time delay of the terminal device's uplink transmission.
  • the uplink data includes uplink data scheduled by downlink control information, or uplink data scheduled by random access response message, or HARQ acknowledgment message, or sounding reference signal, etc.
  • Figure 6 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application, the method includes but is not limited to the following steps:
  • Step 601 The first network device determines a first delay value.
  • step 601 includes: the first network device determines the first delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell
  • the first network device is the network device corresponding to the first cell, such as the base station of the first cell and other network devices, the coverage area of the first cell overlaps with the coverage area of the second cell.
  • the coverage area of the first cell and the coverage area of the second cell may partially overlap, or the coverage area of the first cell may completely overlap.
  • the terminal device may be located in an overlapping portion of the coverage of the first cell and the second cell.
  • the first network device in the embodiment of the present application is a different device equipped with a processor that can be used to execute computer-executed instructions.
  • the first network device can be a satellite, a base station or a gateway in a GSM system or a CDMA system, etc. Specifically, it can be The above-mentioned base station in the satellite 101 in FIG. 1 is configured to determine the first delay value and send the first delay value to the terminal device.
  • the method provided in this embodiment further includes:
  • the second network device sends location information of the coverage area of the second cell to the first network device, where the location information of the coverage area of the second cell is used to determine the first delay value.
  • the second network device is a network device corresponding to the second cell, such as a network device such as a base station of the second cell.
  • the second network device in the embodiment of the present application is a different device equipped with a processor that can be used to execute computer-executed instructions.
  • the second network device can be a satellite, a base station or a gateway in a GSM system or a CDMA system, etc. Specifically, it can be The above-mentioned base station in the satellite 101 in FIG. 1 is configured to send the location information of the coverage area of the second cell to the first network device.
  • the aforementioned reference point may be the closest point within the coverage area of the second cell to the satellite corresponding to the first cell, or may be a point within the coverage area of the second cell relative to the satellite corresponding to the second cell Any fixed point of position, the reference point determined in the embodiment of the present application, can make the accuracy of the first time delay value higher.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell may be on the same satellite orbit, or may be on different satellite orbits.
  • Step 602 The first network device sends the first delay value to the terminal device.
  • the terminal device receives the first delay value sent by the first network device.
  • the first network device sends a broadcast message or sends a radio resource control signaling to the terminal device or sends a media access layer control signaling to the terminal device to indicate the first network device determined by the first network device.
  • a delay value is used by the terminal device to determine a scheduling delay value, and the scheduling delay value is used by the terminal device to schedule uplink data.
  • the terminal device in the embodiment of the present application is a device equipped with a processor that can be used to execute instructions executed by a computer.
  • the terminal device may be a mobile phone, a computer, a vehicle, a wearable device, etc., specifically the terminal device 102 in FIG. 1 above. , establishing a dual connection between the first cell and the second cell, for receiving a first delay value sent by the first network device, and determining a scheduling delay value according to the first delay value.
  • Step 603 The terminal device determines a scheduling delay value according to the first delay value and the second delay value.
  • step 403 The method performed in this step is the same as that of step 403 above, and will not be repeated here.
  • Step 604 The terminal device performs uplink transmission with the first network device according to the scheduling delay value.
  • the terminal device determines the time domain position of the uplink transmission resource according to the above determined scheduling delay value, and sends uplink data to the first network device at the time domain position of the uplink transmission resource, thereby greatly reducing the uplink transmission delay of the terminal device.
  • the uplink data includes uplink data scheduled by downlink control information, or uplink data scheduled by random access response message, or HARQ acknowledgment message, or sounding reference signal, etc.
  • Fig. 7 is an interactive schematic diagram of another data transmission method provided by the embodiment of the present application, the method includes but is not limited to the following steps:
  • Step 701 The first network device determines a scheduling delay value.
  • step 701 includes: the first network device determines the first delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • the first network device obtains the second delay value by receiving the broadcast message corresponding to the first cell. Then, the first network device determines the sum of the obtained first delay value and the second delay value as the scheduling delay value.
  • the above-mentioned first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the above-mentioned second delay value is not less than the public timing advance value broadcast by the first cell
  • the second delay value may be a public timing advance value broadcast by the first cell
  • the scheduling delay value is a delay value for uplink transmission between the terminal device and the first network device.
  • the first network device is a network device corresponding to the first cell, such as a network device such as a base station in the first cell, and the coverage area of the first cell overlaps with the coverage area of the second cell. Specifically, the coverage area of the first cell may overlap with that of the second cell. The coverage areas of the two cells partially overlap, or the coverage area of the first cell may completely include the coverage area of the second cell, and the terminal device may be located in the overlapping portion of the coverage areas of the first cell and the second cell.
  • the first network device in the embodiment of the present application is a different device equipped with a processor that can be used to execute computer-executed instructions.
  • the first network device can be a satellite, a base station or a gateway in a GSM system or a CDMA system, etc. Specifically, it can be The above-mentioned base station in the satellite 101 in FIG. 1 is used to determine the scheduling delay value and send the scheduling delay value to the terminal equipment.
  • the aforementioned reference point may be the closest point within the coverage area of the second cell to the satellite corresponding to the first cell, or may be a point within the coverage area of the second cell relative to the satellite corresponding to the second cell Any fixed point of position, the reference point determined in the embodiment of the present application, can make the accuracy of the first timing advance value higher.
  • the satellite corresponding to the first cell and the satellite corresponding to the second cell may be on the same satellite orbit, or may be on different satellite orbits.
  • the method provided in this embodiment further includes:
  • the second network device sends location information of the coverage area of the second cell to the first network device, where the location information of the coverage area of the second cell is used to determine the first delay value.
  • the second network device is a network device corresponding to the second cell, such as a network device such as a base station of the second cell.
  • Step 702 The first network device sends the scheduling delay value to the terminal device.
  • the terminal device receives the scheduling delay value sent by the first network device.
  • the first network device sends a broadcast message or sends a radio resource control signaling to the terminal device or sends a media access layer control signaling to the terminal device, which is used to indicate the scheduling determined by the first network device delay value.
  • the scheduling delay value sent to the terminal device has high accuracy, and the scheduling delay value is used for the terminal device to schedule uplink data, which can greatly reduce the time delay for the terminal device to perform uplink transmission.
  • the terminal device in the embodiment of the present application is a device equipped with a processor that can be used to execute instructions executed by a computer.
  • the terminal device may be a mobile phone, a computer, a vehicle, a wearable device, etc., specifically the terminal device 102 in FIG. 1 above. , establishing a dual connection between the first cell and the second cell, for receiving the scheduling delay value sent by the first network device, and performing uplink transmission scheduling according to the scheduling delay value.
  • Step 703 The terminal device performs uplink transmission with the first network device according to the scheduling delay value.
  • the terminal device determines the time domain position of the uplink transmission resource according to the above determined scheduling delay value, and sends uplink data to the first network device at the time domain position of the uplink transmission resource, thereby greatly reducing the uplink transmission delay of the terminal device.
  • the uplink data includes uplink data scheduled by downlink control information, or uplink data scheduled by random access response message, or HARQ acknowledgment message, or sounding reference signal, etc.
  • FIG. 8 is a schematic structural diagram of a data transmission device provided in an embodiment of the present application.
  • the data transmission device 80 may include an acquisition unit 801 and a transmission unit 802, where each unit is described as follows:
  • the obtaining unit 801 is configured to obtain a scheduling delay value; the scheduling delay value is determined according to the first delay value, or the scheduling delay value is determined according to the first delay value and the second delay value; the first delay value is The round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, the second delay value is not less than the public timing advance value broadcast by the first cell, the coverage area of the second cell is the same as the first The coverage areas of the cells overlap;
  • the transmission unit 802 is configured to perform uplink data transmission with the first network device according to the first scheduling delay value.
  • the device further includes a determining unit 803:
  • the acquiring unit 801 is specifically configured to receive a first delay value from a first network device or a second network device, where the first network device is a network device corresponding to the first cell, and the second network device is a network device corresponding to the second cell;
  • a determining unit 803 configured to determine a scheduling delay value according to the first delay value and the second delay value.
  • each unit in the device shown in FIG. 8 can be separately or all combined into one or several other units to form, or one (some) units can be further divided into more functional units. It is composed of multiple small units, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application.
  • the above-mentioned units are divided based on logical functions. In practical applications, the functions of one unit may also be realized by multiple units, or the functions of multiple units may be realized by one unit. In other embodiments of the present application, the network-based device may also include other units. In practical applications, these functions may also be assisted by other units, and may be implemented cooperatively by multiple units.
  • the data transmission device may be the terminal device shown above or a chip in the terminal device or the like. That is, the data transmission apparatus may be used to perform the steps or functions performed by the terminal device in the above method embodiments.
  • uplink data transmission is performed with the first network device according to the obtained scheduling delay value, wherein, according to the first delay value, or according to the first delay value and the second
  • the scheduling delay value determined by the delay value has high precision, which can greatly reduce the delay of data transmission of the terminal equipment.
  • each processing unit may correspond to one or more processors, where the acquisition unit 801 may correspond to the receiver, and the transmission unit 802 may correspond to the transmitter device, the acquiring unit 801 and the transmitting unit 802 may also be integrated into one device, such as a transceiver.
  • the processor and the transceiver may be coupled, etc.
  • the coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms. Information exchange between devices, units or modules.
  • the embodiment of the present application does not limit the connection manner between the processor and the transceiver.
  • FIG. 9 is a schematic structural diagram of a data transmission device provided in an embodiment of the present application.
  • the data transmission device 90 may include a determination unit 901 and a sending unit 902, where each unit is described as follows:
  • the determining unit 901 is configured to determine a scheduling delay value according to the first delay value, or according to the first delay value and the second delay value, and the scheduling delay value is used for scheduling uplink data;
  • the first network device is For the network equipment corresponding to the first cell, the first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the second delay value is not less than that broadcast by the first cell Public timing advance value, the coverage area of the second cell overlaps with the coverage area of the first cell;
  • the sending unit 902 is used to send the scheduling delay value to the terminal device;
  • the sending unit 902 is configured to send a first delay value to the terminal device.
  • the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell.
  • the first delay value is The value is used to determine the scheduling delay value, and the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell.
  • the device further includes a receiving unit 903:
  • the receiving unit 903 is configured to receive the location information of the coverage area of the second cell sent by the second network device; the second network device is a network device corresponding to the second cell;
  • the determining unit 901 is configured to determine a first time delay value according to the location information of the coverage area of the second cell and the location information of the satellite corresponding to the first cell.
  • each unit in the device shown in FIG. 9 can be separately or all combined into one or several other units to form, or one (some) units can be further divided into functionally more It is composed of multiple small units, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application.
  • the above-mentioned units are divided based on logical functions.
  • the functions of one unit may also be realized by multiple units, or the functions of multiple units may be realized by one unit.
  • the network-based device may also include other units. In practical applications, these functions may also be assisted by other units, and may be implemented cooperatively by multiple units.
  • the data transmission device may be the first network device shown above or a chip in the first network device or the like. That is, the data transmission device can be used to perform the steps or functions performed by the first network device in the above method embodiments.
  • uplink data transmission is performed with the first network device according to the obtained scheduling delay value, wherein, according to the first delay value, or according to the first delay value and the second
  • the scheduling delay value determined by the delay value has high precision, which can greatly reduce the delay of data transmission of the terminal equipment.
  • each processing unit may correspond to one or more processors, wherein the receiving unit 903 may correspond to a receiver, and the sending unit 902 may correspond to a transmitting device, the receiving unit 903 and the sending unit 902 may also be integrated into one device, such as a transceiver.
  • the processor and the transceiver may be coupled, etc.
  • the coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms. Information exchange between devices, units or modules.
  • the embodiment of the present application does not limit the connection manner between the processor and the transceiver.
  • FIG. 10 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • the data transmission device 100 may include a determination unit 1001 and a sending unit 1002, where each unit is described as follows:
  • the determining unit 1001 is configured to determine the scheduling delay value according to the first delay value, or according to the first delay value and the second delay value, the first delay value is from the satellite corresponding to the first cell to the second cell
  • the round-trip transmission delay value of the reference point in the coverage area of the second delay value is not less than the public timing advance value broadcast by the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell
  • the sending unit 1002 It is used to send the scheduling delay value to the terminal equipment, and the scheduling delay value is used for scheduling uplink data
  • the sending unit 1002 is configured to send a first delay value to the terminal device, where the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell, and the first delay value is The value is used to determine the scheduling delay value, and the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • the sending unit 1002 is configured to send the location information of the coverage area of the second cell to the first network device; the first network device is a network device corresponding to the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell, The location information of the coverage area of the second cell is used to determine a first delay value, and the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point in the coverage area of the second cell.
  • each unit in the device shown in Fig. 10 can be respectively or all combined into one or several other units to form, or one (some) units can be further divided into functionally more It is composed of multiple small units, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application.
  • the above-mentioned units are divided based on logical functions.
  • the functions of one unit may also be realized by multiple units, or the functions of multiple units may be realized by one unit.
  • the network-based device may also include other units. In practical applications, these functions may also be implemented with the assistance of other units, and may be implemented cooperatively by multiple units.
  • the data transmission device may be the second network device shown above or a chip in the second network device or the like. That is, the data transmission apparatus may be used to perform the steps or functions performed by the second network device in the above method embodiments.
  • uplink data transmission is performed with the first network device according to the obtained scheduling delay value, wherein, according to the first delay value, or according to the first delay value and the second
  • the scheduling delay value determined by the delay value has high precision, which can greatly reduce the delay of data transmission of the terminal equipment.
  • each processing unit may correspond to one or more processors, wherein the sending unit 1002 may correspond to a transmitter, and may also be integrated into a transceiver middle.
  • the processor and the transceiver may be coupled, etc.
  • the coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms. Information exchange between devices, units or modules.
  • the embodiment of the present application does not limit the connection manner between the processor and the transceiver.
  • FIG. 11 is a schematic structural diagram of a communication device 110 provided in an embodiment of the present application.
  • the communication device 110 may include a memory 1101 and a processor 1102 . Further optionally, a communication interface 1103 and a bus 1104 may also be included, wherein the memory 1101 , the processor 1102 and the communication interface 1103 are connected to each other through the bus 1104 .
  • the communication interface 1103 is used for data interaction with other devices.
  • a specific connection medium among the communication interface 1103, the processor 1102, and the memory 1101 is not limited.
  • the memory 1101, the processor 1102, and the communication interface 1103 are connected through the bus 1104.
  • the bus is marked with a number in FIG. 11, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one line is used in FIG. 11 , but it does not mean that there is only one bus or one type of bus.
  • the memory 1101 is used to provide a storage space, in which data such as operating systems and computer programs can be stored.
  • Memory 1101 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or Portable read-only memory (compact disc read-only memory, CD-ROM).
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read only memory
  • Portable read-only memory compact disc read-only memory, CD-ROM.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, and is used for storing program instructions and/or data.
  • the processor 1102 is a module for performing arithmetic operations and logical operations, and may be in a processing module such as a central processing unit (central processing unit, CPU), a graphics processing unit (graphics processing unit, GPU) or a microprocessor (microprocessor unit, MPU). one or a combination of more.
  • the processor can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application, and the steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware processor to execute and complete, or use the hardware in the processor to And software module combination execution is completed, etc.
  • a computer program is stored in the memory 1101, and the processor 1102 invokes the computer program stored in the memory 1101 to execute the data transmission method shown in the above-mentioned FIGS. 4 to 7:
  • the scheduling delay value is determined according to the first delay value, or the scheduling delay value is determined according to the first delay value and the second delay value; the first delay value is determined by the satellite corresponding to the first cell
  • the round-trip transmission delay value to the reference point in the coverage area of the second cell, the second delay value is not less than the public timing advance value broadcast by the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • the specific content of the method executed by the processor 1102 may refer to the above-mentioned FIG. 4 to FIG. 7 , which will not be repeated here.
  • the processor 1102 calls the computer program stored in the memory 1101, which can also be used to execute the method steps performed by the various units in the data transmission device 80 shown in FIG. I won't repeat them here.
  • a computer program is stored in the memory 1101, and the processor 1102 invokes the computer program stored in the memory 1101 to execute the data transmission method shown in the above-mentioned Figures 4 to 7:
  • the first network device is the network corresponding to the first cell
  • the first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell
  • the second delay value is not less than the public timing advance value broadcast by the first cell.
  • the coverage area of the second cell overlaps with the coverage area of the first cell; sending the scheduling delay value to the terminal equipment;
  • the first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the first delay value is used to determine the scheduling time Delay value, the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell.
  • the specific content of the method executed by the processor 1102 may refer to the above-mentioned FIG. 4 to FIG. 7 , which will not be repeated here.
  • the processor 1102 invokes the computer program stored in the memory 1101, which can also be used to execute the method steps performed by the various units in the data transmission device 90 shown in FIG. I won't repeat them here.
  • a computer program is stored in the memory 1101, and the processor 1102 invokes the computer program stored in the memory 1101 to execute the data transmission method shown in FIGS. 4 to 7 above:
  • the first delay value or, according to the first delay value and the second delay value, determine the scheduling delay value, and the first delay value is a reference from the satellite corresponding to the first cell to the coverage area of the second cell
  • the round-trip transmission delay value of the point, the second delay value is not less than the public timing advance value broadcast by the first cell, and the coverage area of the second cell overlaps with the coverage area of the first cell
  • the scheduling delay value is sent to the terminal equipment, and the scheduling The delay value is used for the scheduling of uplink data
  • the first delay value is the round-trip transmission delay value from the satellite corresponding to the first cell to the reference point in the coverage area of the second cell, and the first delay value is used to determine the scheduling time Delay value, the scheduling delay value is used for scheduling uplink data, and the coverage area of the second cell overlaps with the coverage area of the first cell;
  • the first network device is the network device corresponding to the first cell, the coverage area of the second cell overlaps with the coverage area of the first cell, and the coverage area of the second cell
  • the location information is used to determine a first delay value, where the first delay value is a round-trip transmission delay value from a satellite corresponding to the first cell to a reference point within the coverage area of the second cell.
  • the specific content of the method executed by the processor 1102 may refer to the above-mentioned FIG. 4 to FIG. 7 , which will not be repeated here.
  • the processor 1102 invokes the computer program stored in the memory 1101, which can also be used to execute the method steps performed by the various units in the data transmission device 100 shown in FIG. I won't repeat them here.
  • uplink data transmission is performed with the first network device according to the acquired scheduling delay value, wherein, according to the first delay value, or according to the first delay value and the second time delay value
  • the scheduling delay value determined by the delay value has high precision, which can greatly reduce the delay of data transmission of the terminal equipment.
  • the communication device shown in the embodiment of the present application may have more components than those shown in FIG. 11 , which is not limited in the embodiment of the present application.
  • the method performed by the processor shown above is only an example, and for the specific steps performed by the processor, reference may be made to the method introduced above.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device includes a logic circuit 1201 and an interface 1202 .
  • the logic circuit 1201 may be a chip, a processing circuit, an integrated circuit or a system on chip (SoC) chip, etc.
  • the interface 1202 may be a communication interface, an input/output interface, or a pin.
  • FIG. 12 shows that the aforementioned communication device is a chip as an example, and the chip includes a logic circuit 1201 and an interface 1202 .
  • the logic circuit and the interface may also be coupled to each other.
  • the embodiment of the present application does not limit the specific connection manner of the logic circuit and the interface.
  • the communication device shown in the embodiment of the present application may implement the method provided in the embodiment of the present application in the form of hardware, or may implement the method provided in the embodiment of the present application in the form of software, which is not limited in the embodiment of the present application.
  • the embodiment of the present application also provides a computer-readable storage medium.
  • the above-mentioned computer-readable storage medium stores a computer program.
  • the above-mentioned computer program is run on one or more processors, the above-mentioned Figure 4, Figure 5, The method shown in Figure 6 and Figure 7.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes a computer program.
  • the methods shown in the above-mentioned Figures 4, 5, 6, and 7 can be implemented. .
  • the embodiment of the present application also provides a chip, the chip includes a processor, and the processor is configured to execute instructions.
  • the processor executes the instructions, the methods shown in the above-mentioned FIG. 4 , FIG. 5 , FIG. 6 , and FIG. 7 can be implemented.
  • the chip also includes a communication interface, which is used for inputting signals or outputting signals.
  • the embodiment of the present application also provides a system, which includes at least one communication device or chip such as the above-mentioned data transmission device 80 or data transmission device 90 or data transmission device 100 or communication device 110 or FIG. 12 .
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to realize the technical effects of the solutions provided by the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the storage medium includes several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned readable storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk, etc., which can store program codes. medium.

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Abstract

本申请公开了一种数据传输方法及相关装置，涉及无线通信技术领域。该数据传输方法包括：获取调度时延值，根据调度时延值，与第一网络设备进行上行数据传输。其中，调度时延值根据第一时延值确定，或者，调度时延值根据第一时延值和第二时延值确定；第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠。本方法获取到的调度时延值精度较高，可以大大降低终端设备数据传输的时延。

Description

一种数据传输方法及相关装置 技术领域
本申请涉及无线通信技术领域，尤其涉及一种数据传输方法及相关装置。
背景技术
在当前的非陆地网络(non terrestrial networks，NTN)中，是假设终端设备具备全球导航卫星系统(global navigation satellite system，GNSS)定位能力的，即终端设备可以根据星历信息以及利用GNSS获得的自身的位置信息计算出终端设备与服务卫星之间的往返传输时延(round-trip time，RTT)，进而确定终端设备上行发送的定时提前(timing advance，TA)值，并将自身的位置信息或上行发送的TA值上报给网络设备，进而根据网络设备指示的调度时延值，确定终端设备进行数据传输时的调度时延值，以完成终端设备上行数据传输。
但是，在Non-GNSS场景下，终端设备不具备GNSS能力，无法向网络设备上报自身的位置信息或上行发送的TA值，因此，网络无法精确地确定终端设备进行数据传输时的调度时延值。这种情况下，网络为了保证数据传输的可靠性，会采用一个相对比较大的调度时延值进行数据调度，如此一来会增大终端设备数据传输的时延。
发明内容
本申请实施例提供了一种数据传输方法及相关装置，根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
第一方面，本申请实施例提供了一种数据传输方法，应用于终端设备，该方法包括：
获取调度时延值；所述调度时延值根据第一时延值确定，或者，所述调度时延值根据第一时延值和第二时延值确定；所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
根据所述调度时延值，与第一网络设备进行上行数据传输。
在本申请实施例中，提供了一种应用于终端设备侧的数据传输方法，终端设备首先获取调度时延值，然后根据该调度时延值，与第一网络设备进行上行数据传输。其中，第一网络设备为第一小区对应的网络设备，如第一小区基站等网络设备，该第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。上述获取到的调度时延值由第一时延值确定得到，或者由第一时延值和第二时延值确定得到，其中，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值。通过本申请实施例，将获取到的调度时延值用于与第一网络设备进行上行数据传输的时延，其中，由第一时延值，或由第一时延值和第二时延值确定得到的调度时延值的精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述获取调度时延值，包括：
从所述第一网络设备或第二网络设备接收所述调度时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备。
在本申请实施例中，提供了一种获取调度时延值的可能的具体实施方式，具体为，终 端设备从第一网络设备或第二网络设备接收调度时延值。通过本申请实施例得到的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述方法还包括：
从所述第一网络设备或所述第二网络设备接收所述第一时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备；
所述获取调度时延值，包括：
根据所述第一时延值和所述第二时延值确定所述调度时延值。
在本申请实施例中，提供了另一种获取调度时延值的可能的具体实施方式，具体为，终端设备从第一网络设备或第二网络设备接收第一时延值，然后根据第一时延值和第二时延值确定调度时延值，该调度时延值用于终端设备与第一网络设备进行数据传输。通过本申请实施例可知，由第一时延值和第二时延值确定得到的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述调度时延值为所述第一时延值与所述第二时延值之和。
在本申请实施例中，调度时延值由第一时延值和第二时延值确定得到，具体可以是第一时延值与第二时延值之和。通过本申请实施例得到的调度时延值精度较高，用于终端设备的数据传输，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述方法还包括：
通过所述第一小区对应的广播消息获取所述第二时延值。
在本申请实施例中，第二时延值由接收第一小区对应的广播消息得到，该第二时延值不小于第一小区广播的公共定时提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值。通过本申请实施例得到的第二时延值，可以使基于第一时延值和第二时延值确定的调度时延值更加精准，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定。
在本申请实施例中，第一时延值由第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息确定得到，该第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值。通过本申请实施例得到的第一时延值，可以使基于第一时延值和第二时延值确定的调度时延值更加精准，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述根据所述调度时延值，与第一网络设备进行上行数据传输，包括：
根据所述调度时延值确定上行传输资源时域位置，在所述上行传输资源时域位置上向所述第一网络设备发送上行数据。
在本申请实施例中，提供了一种根据调度时延值与第一网络设备进行上行数据传输的可能的具体实施方式，具体为，终端设备根据调度时延值确定上行传输资源时域位置，并在该上行传输资源时域位置上向第一网络设备发送上行数据，大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
第二方面，本申请实施例提供了一种数据传输方法，应用于第一网络设备，该方法包括：
根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述 调度时延值用于上行数据的调度；所述第一网络设备为第一小区对应的网络设备，所述第一时延值为所述第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；向终端设备发送所述调度时延值；
或者，
向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠。
在本申请实施例中，提供了一种应用于第一网络设备侧的数据传输方法，第一网络设备首先根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，然后向终端设备发送该调度时延值。其中，第一网络设备为第一小区对应的网络设备，如第一小区基站等网络设备，终端设备为建立第一小区与第二小区双连接的设备，该第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。上述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，上述第二时延值不小于第一小区广播的公共定时提前值，上述确定的调度时延值为终端设备与第一网络设备进行上行数据传输的时延值。或者，第一网络设备向终端设备发送第一时延值。通过本申请实施例，向终端设备发送的调度时延值或第一时延值精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述方法还包括：
接收第二网络设备发送的所述第二小区的覆盖区域的位置信息；所述第二网络设备为所述第二小区对应的网络设备；
根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息，确定所述第一时延值。
在本申请实施例中，还提供了一种确定第一时延值的可能的具体实施方式，具体为，第一网络设备接收第二网络设备发送的第二小区的覆盖区域的位置信息，然后根据该第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。其中，通过本申请实施例得到的第一时延值，所确定得到的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述方法还包括：
通过所述第一小区对应的广播消息获取所述第二时延值。
在本申请实施例中，第二时延值由接收第一小区对应的广播消息得到，该第二时延值不小于第一小区广播的公共定时提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值。通过本申请实施例得到的第二时延值，可以使基于第一时延值和第二时延值确定的调度时延值更加精准，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，包括：
将所述第一时延值作为所述调度时延值；
或者，将所述第一时延值、所述第二时延值的和作为所述调度时延值。
在本申请实施例中，提供了一种确定调度时延值的可能的具体实施方式，具体为，将第一时延值确定为调度时延值，或者，将第一时延值、第二时延值的和确定为调度时延值。通过本申请实施例，基于第一时延值，或者，基于第一时延值和第二时延值，所确定的调 度时延值的精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述向终端设备发送所述调度时延值，包括：
向所述终端设备发送无线资源控制信令或媒体接入层控制信令，所述无线资源控制信令或所述媒体接入层控制信令用于向所述终端设备指示所述调度时延值。
在本申请实施例中，提供了一种向终端设备发送调度时延值的可能的具体实施方式，具体为，向终端设备发送无线资源控制信令或媒体接入层控制信令，用于向终端设备指示第一网络设备所确定的调度时延值。通过本申请实施例，向终端设备发送的调度时延值的精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
第三方面，本申请实施例提供了一种数据传输方法，应用于第二网络设备，该方法包括：
根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；向终端设备发送所述调度时延值，所述调度时延值用于上行数据的调度；
或者，
向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
或者，
向第一网络设备发送第二小区的覆盖区域的位置信息；所述第一网络设备为第一小区对应的网络设备，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠，所述第二小区的覆盖区域的位置信息用于确定第一时延值，所述第一时延值为所述第一小区对应的卫星到所述第二小区的覆盖区域内的参考点的往返传输时延值。
在本申请实施例中，提供了一种应用于第二网络设备侧的数据传输方法，第二网络设备首先根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，然后向终端设备发送该调度时延值。其中，第二网络设备为第二小区对应的网络设备，如第二小区基站等网络设备，终端设备为建立第一小区与第二小区双连接的设备，该第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。上述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，上述第二时延值不小于第一小区广播的公共定时提前值，上述确定的调度时延值为终端设备与第一网络设备进行上行数据传输的时延值。或者，第二网络设备向终端设备发送第一时延值，该第一时延值用于确定调度时延值。或者，第二网络设备向第一网络设备发送第二小区的覆盖区域的位置信息，该第一网络设备为第一小区对应的网络设备，如第一小区基站等网络设备，该第二小区的覆盖区域的位置信息用于确定第一时延值。通过本申请实施例，向终端设备发送的调度时延值或第一时延值精度较高，可以大大降低终端设备数据传输的时延。
在一种可能的实施方式中，所述根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，包括：
将所述第一时延值作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定；
或者，将所述第一时延值、所述第二时延值的和作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定，所述第二时延值通过所述第一小区对应的广播消息得到。
在本申请实施例中，提供了一种确定调度时延值的可能的具体实施方式，具体为，将第一时延值确定为调度时延值，或者，将第一时延值、第二时延值的和确定为调度时延值。其中，第一时延值由第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息确定得到，该第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，该第一时延值用于确定调度时延值；第二时延值由接收第一小区对应的广播消息得到，该第二时延值不小于第一小区广播的公共定时提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值。通过本申请实施例，基于第一时延值，或者，基于第一时延值和第二时延值，所确定的调度时延值的精度较高，可以大大降低终端设备进行数据传输的时延。
在一种可能的实施方式中，所述向终端设备发送所述调度时延值，包括：
发送广播消息或向所述终端设备发送无线资源控制信令或向所述终端设备发送媒体接入层控制信令；所述广播消息或所述无线资源控制信令或所述媒体接入层控制信令用于指示所述调度时延值。
在本申请实施例中，提供了一种向终端设备发送调度时延值的可能的具体实施方式，具体为，发送广播消息或向终端设备发送无线资源控制信令或向终端设备发送媒体接入层控制信令，用于指示第二网络设备所确定的调度时延值。通过本申请实施例，向终端设备发送的调度时延值精度较高，可以大大降低终端设备进行数据传输的时延。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
第四方面，本申请实施例提供了一种数据传输装置，该装置包括：
获取单元，用于获取调度时延值；所述调度时延值根据第一时延值确定，或者，所述调度时延值根据第一时延值和第二时延值确定；所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
传输单元，用于根据所述第一调度时延值，与所述第一网络设备进行上行数据传输。
在一种可能的实施方式中，所述获取单元，具体用于从所述第一网络设备或第二网络设备接收所述调度时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备。
在一种可能的实施方式中，所述装置还包括确定单元：
所述获取单元，具体用于从所述第一网络设备或所述第二网络设备接收所述第一时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备；
所述确定单元，用于根据所述第一时延值和所述第二时延值确定所述调度时延值。
在一种可能的实施方式中，所述调度时延值为所述第一时延值与所述第二时延值之和。
在一种可能的实施方式中，所述获取单元，还用于通过所述第一小区对应的广播消息获取所述第二时延值。
在一种可能的实施方式中，所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定。
在一种可能的实施方式中，所述传输单元，具体用于根据所述调度时延值确定上行传输资源时域位置，在所述上行传输资源时域位置上向所述第一网络设备发送上行数据。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
关于第四方面或各种可能的实施方式所带来的技术效果，可参考对应于第一方面或相应的实施方式的技术效果的介绍。
第五方面，本申请实施例提供了一种数据传输装置，该装置包括：
确定单元，用于根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述调度时延值用于上行数据的调度；所述第一网络设备为第一小区对应的网络设备，所述第一时延值为所述第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；发送单元，用于向终端设备发送所述调度时延值；
或者，
发送单元，用于向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠。
在一种可能的实施方式中，所述装置还包括接收单元：
所述接收单元，用于接收第二网络设备发送的所述第二小区的覆盖区域的位置信息；所述第二网络设备为所述第二小区对应的网络设备；
所述确定单元，用于根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息，确定所述第一时延值。
在一种可能的实施方式中，所述接收单元，还用于通过所述第一小区对应的广播消息获取所述第二时延值。
在一种可能的实施方式中，所述确定单元，具体用于将所述第一时延值作为所述调度时延值；
或者，所述确定单元，具体用于将所述第一时延值、所述第二时延值的和作为所述调度时延值。
在一种可能的实施方式中，所述发送单元，具体用于向所述终端设备发送无线资源控制信令或媒体接入层控制信令，所述无线资源控制信令或所述媒体接入层控制信令用于向所述终端设备指示所述调度时延值。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
关于第五方面或各种可能的实施方式所带来的技术效果，可参考对应于第二方面或相应的实施方式的技术效果的介绍。
第六方面，本申请实施例提供了一种数据传输装置，该装置包括：
确定单元，用于根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调 度时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；发送单元，用于向终端设备发送所述调度时延值，所述调度时延值用于上行数据的调度；
或者，
发送单元，用于向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
或者，
发送单元，用于向第一网络设备发送第二小区的覆盖区域的位置信息；所述第一网络设备为第一小区对应的网络设备，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠，所述第二小区的覆盖区域的位置信息用于确定第一时延值，所述第一时延值为所述第一小区对应的卫星到所述第二小区的覆盖区域内的参考点的往返传输时延值。
在一种可能的实施方式中，所述确定单元，具体用于将所述第一时延值作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定；或者，
所述确定单元，具体用于将所述第一时延值、所述第二时延值的和作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定，所述第二时延值通过所述第一小区对应的广播消息得到。
在一种可能的实施方式中，所述发送单元，具体用于发送广播消息或向所述终端设备发送无线资源控制信令或向所述终端设备发送媒体接入层控制信令；所述广播消息或所述无线资源控制信令或所述媒体接入层控制信令用于指示所述调度时延值。
在一种可能的实施方式中，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
在一种可能的实施方式中，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
关于第六方面或各种可能的实施方式所带来的技术效果，可参考对应于第三方面或相应的实施方式的技术效果的介绍。
第七方面，本申请实施例提供一种通信装置，所述通信装置包括处理器和存储器；所述存储器用于存储计算机执行指令；所述处理器用于执行所述存储器所存储的计算机执行指令，以使所述通信装置执行如上述第一方面以及任一项可能的实施方式的方法，或使所述通信装置执行如上述第二方面以及任一项可能的实施方式的方法，或使所述通信装置执行如上述第三方面以及任一项可能的实施方式的方法。可选的，所述通信装置还包括收发器，所述收发器，用于接收信号或者发送信号。
第八方面，本申请实施例提供一种通信装置，所述通信装置包括逻辑电路和接口；所述逻辑电路和接口耦合；所述接口用于输入和/或输出代码指令，所述逻辑电路用于执行所述代码指令，以使所述通信装置执行如上述第一方面以及任一项可能的实施方式的方法，或使所述通信装置执行如上述第二方面以及任一项可能的实施方式的方法，或使所述通信装置执行如上述第三方面以及任一项可能的实施方式的方法。
第九方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质用于存储指令或计算机程序；当所述指令或所述计算机程序被执行时，使得第一方面以及任一项可能的实施方式所述的方法被实现，或使得第二方面以及任一项可能的实施方式所述 的方法被实现，或使得第三方面以及任一项可能的实施方式所述的方法被实现。
第十方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括指令或计算机程序；当所述指令或所述计算机程序被执行时，使得第一方面以及任一项可能的实施方式所述的方法被实现，或使得第二方面以及任一项可能的实施方式所述的方法被实现，或使得第三方面以及任一项可能的实施方式所述的方法被实现。
第十一方面，本申请实施例提供一种芯片，该芯片包括处理器，所述处理器用于执行指令，当该处理器执行所述指令时，使得该芯片执行如第一方面以及任一项可能的实施方式所述的方法，或使得该芯片执行如第二方面以及任一项可能的实施方式所述的方法，或使得该芯片执行如第三方面以及任一项可能的实施方式所述的方法。可选的，该芯片还包括通信接口，所述通信接口用于接收信号或发送信号。
第十二方面，本申请实施例提供一种系统，所述系统包括以下至少一个：第四方面所述的数据传输装置，第五方面所述的数据传输装置，第六方面所述的数据传输装置，第七方面所述的通信装置，第八方面所述的通信装置，第十一方面所述的芯片。
此外，在执行上述各个方面以及任一项可能的实施方式所述的方法的过程中，上述方法中有关发送信息和/或接收信息等的过程，可以理解为由处理器输出信息的过程，和/或，处理器接收输入的信息的过程。在输出信息时，处理器可以将信息输出给收发器(或者通信接口、或发送模块)，以便由收发器进行发射。信息在由处理器输出之后，还可能需要进行其他的处理，然后才到达收发器。类似的，处理器接收输入的信息时，收发器(或者通信接口、或发送模块)接收信息，并将其输入处理器。更进一步的，在收发器收到该信息之后，该信息可能需要进行其他的处理，然后才输入处理器。
基于上述原理，举例来说，前述方法中提及的发送信息可以理解为处理器输出信息。又例如，接收信息可以理解为处理器接收输入的信息。
可选的，对于处理器所涉及的发射、发送和接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则均可以更加一般性的理解为处理器输出和接收、输入等操作。
可选的，在执行上述各个方面以及任一项可能的实施方式所述的方法的过程中，上述处理器可以是专门用于执行这些方法的处理器，也可以是通过执行存储器中的计算机指令来执行这些方法的处理器，例如通用处理器。上述存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(Read Only Memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
在一种可能的实施方式中，上述至少一个存储器位于装置之外。
在又一种可能的实施方式中，上述至少一个存储器位于装置之内。
在又一种可能的实施方式之中，上述至少一个存储器的部分存储器位于装置之内，另一部分存储器位于装置之外。
本申请中，处理器和存储器还可能集成于一个器件中，即处理器和存储器还可以被集成在一起。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种NTN的场景示意图；
图2为本申请实施例提供的一种调度时延的场景示意图；
图3为本申请实施例提供的一种双连接的场景示意图；
图4为本申请实施例提供的一种数据传输方法的交互示意图；
图5为本申请实施例提供的另一种数据传输方法的交互示意图；
图6为本申请实施例提供的又一种数据传输方法的交互示意图；
图7为本申请实施例提供的又一种数据传输方法的交互示意图；
图8为本申请实施例提供的一种数据传输装置的结构示意图；
图9为本申请实施例提供的另一种数据传输装置的结构示意图；
图10为本申请实施例提供的又一种数据传输装置的结构示意图；
图11为本申请实施例提供的一种通信装置的结构示意图；
图12为本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图对本申请实施例进行描述。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备等，没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元等，或可选地还包括对于这些过程、方法、产品或设备等固有的其它步骤或单元。
在本文中提及的“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员可以显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
本申请提供了一种数据传输方法，具体为可应用于NTN通信场景下的数据传输方法，为了更清楚地描述本申请的方案，下面先介绍一些与NTN数据传输相关的知识。
随着信息技术发展，现代通信系统对通信的高效、机动、多样性等提出更迫切的要求， 目前，在一些重要应用场景，如空间通信、航空通信、海事通信、军事通信等领域，卫星发挥着无可替代的作用。卫星通信具备通信距离远、覆盖面积大、组网灵活等特点，其既可为固定终端，也可为各种移动终端提供通信服务。由于传统地面网络不能为终端设备提供无缝覆盖，特别是在大海、沙漠、空中等无法部署基站的地方，因此，NTN被引入到第五代(The 5th Generation，5G)移动通信系统中，它通过将基站或者部分基站功能部署在高空平台或者卫星上，为终端设备提供无缝覆盖。并且高空平台或者卫星受自然灾害影响较小，能提升5G系统的可靠性。基于卫星部署的NTN中，卫星通过不同波束覆盖地面，形成卫星小区，同一时刻某一终端设备可以被多个卫星小区覆盖。
本申请实施例提供的技术方案可以应用于各种通信系统，例如，卫星通信系统，卫星通信与蜂窝网络融合的系统。其中，蜂窝网络系统可以包括但不限于：5G系统、全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新空口(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTEbased access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Wor ldwide I nteroperability for Microwave Access，WiMAX)通信系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如：设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信以及未来演进的其他通信系统等，本申请实施例也可以应用于这些通信系统。卫星通信系统可以包括各种非陆地网络系统，例如，卫星或无人机系统(unmanned aircraft system，UAS)平台等进行无线频率发射的网络，此处不再一一列举。
示例性的，下面以NTN系统为例，提供一种本方案的具体应用场景，该NTN系统具体可以是卫星通信系统或其他非陆地的网络系统，本方案中的数据传输方法可应用在卫星通信范畴。
请参阅图1，以5G通信系统为例，图1为本申请实施例提供的一种NTN的场景示意图。
如图1所示，104表示卫星101的一个小区的覆盖区域，该覆盖区域中可存在一个或多个终端设备102。该小区的覆盖区域104可以是卫星的一个或多个波束所覆盖的区域，或者是同NR系统中的小区级别相同的区域。地面终端设备102通过5G新空口接入网络，5G基站可部署在卫星上，并通过无线链路和地面站103与地面的5G核心网相连。同时， 在卫星之间存在无线链路，完成基站与基站之间的信令交互和用户数据传输。
该场景中的各个网元以及它们的接口说明如下：
终端设备：支持5G新空口的移动设备，典型的比如用户终端、可穿戴设备等移动设备。可以通过空口接入卫星网络并发起呼叫、上网等业务。
5G基站：主要是提供无线接入服务，调度无线资源给接入终端，提供可靠的无线传输协议和数据加密协议等。
5G核心网：包括用户接入控制，移动性管理，会话管理，用户安全认证，计费等业务。它由多个功能单元组成，可以分为控制面和数据面的功能实体。
地面站：负责转发卫星基站和5G核心网之间的信令和业务数据。
5G新空口：用户设备和基站之间的无线链路
Xn接口：为5G基站和基站之间的接口，主要用于切换等信令交互。
NG接口：为5G基站和5G核心网之间的接口，主要交互核心网的非接入层(Non-Access Stratum，NAS)等信令，以及用户的业务数据。
本申请提供的技术方案主要涉及网络设备和终端设备两个执行主体，可应用于5G等通信系统，特别是应用在非地面网络的数据传输过程中。
本申请实施例中涉及的终端设备包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接网络；和/或经由无线接口，如：针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如手持数字电视广播(Digital Video Broadcast-Handheld，DVB-H)网络的数字电视网络、卫星网络、调幅-调频(Amplitude Modulation-Frequency Modulation，AM-FM)广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。该终端设备的示例包括但不限于卫星电话或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历和/或全球定位系统(Global Positioning System，GPS)接收器的个人数字助理(personal digital assistant，PDA)；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、PDA、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。
本申请实施例中涉及的网络设备可以在特定的地理区域提供通信覆盖，并且可以与位 于该覆盖区域内的一个或多个终端设备进行通信，也可以用于与一个或多个具有部分终端功能的基站进行通信(比如宏基站与微基站，如接入点，之间的通信)。可选地，该网络设备可以是卫星、GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，LTE系统中的演进型基站(evolved Node B，eNB)，或者5G系统、NR系统中的下一代基站节点(next generation node base station，gNB)，以及其他卫星基站和卫星中继节点。另外，网络设备也可以为接入点(access point，AP)、传输节点(transport point，TRP)、中心单元(central unit，CU)或其它网络实体，并且可以包括以上网络实体功能中的部分或所有功能。
可以理解的是，本申请实施例中的网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统为例，通信设备可包括具有通信功能的网络设备和终端设备，网络设备和终端设备可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
还需要说明的是，在本申请中，“卫星”与“卫星网络设备”这两种描述是等效的。即，本申请中提及的卫星表示与卫星通信相关的卫星及其他网络设备的集合。
可以理解的是，NTN系统中的一个小区可以是卫星的一个波束在地面上的投影区域，也可以是卫星的多个波束在地面上的投影区域，或者还可能是一个波束或多个波束在地面上的投影区域的部分区域。
为了与卫星获取上行同步，如图2所示，终端设备在进行上行传输时，需要提前一段时间发送，该段时间可以称为终端设备的TA值。在一般场景下，终端设备的TA值＝终端设备到卫星之间的RTT值+第一小区广播的公共TA值+网络指示的TA值调整值。其中，终端设备到卫星之间的RTT值需要根据星历信息以及利用GNSS获得的自身的位置信息计算出。
基于这个原因需要对现有协议中的上/下行定时进行增强，即在现有的协议基础上加入一个额外的时间间隔(K_offset)。例如，在现有的物理下行链路控制信道(Physical Downlink Control Channel，PDCCH)调度物理上行共享信道(Physical Uplink Shared Channel，PUSCH)的过程中，PDCCH中的下行控制信息(Downlink Control Information，DCI)会指示终端设备一个调度时延值(协议称为K2)，终端设备根据指示的K2值进行PUSCH的发送。然而，在NTN中存在很大的传播时延，终端设备如果需要根据TA值进行提前发送，意味着PDCCH接收时刻与PUSCH发送时刻之间必须有足够大的时间间隔(至少不能小于TA值的大小，终端设备补偿的时间间隔的大小可能是卫星与终端设备之间的来回传播时延)。因此，在NTN中，PDCCH调度PUSCH的调度时延值应为：K2+K_offset，这样就可以保证PDCCH接收时刻与PUSCH发送时刻之间有足够大的时间间隔使得终端设备进行提前发送。
在一般场景下，终端设备将自身的位置信息或TA值上报给网络设备，网络设备根据终端设备上报的信息确定调度时延值(调度时延值大于或等于上行传输的TA值)，以完成终端设备上行数据的传输。在Non-GNSS场景下(即终端设备不具备GNSS能力，无法获取自己的位置信息)，终端设备无法计算终端设备与服务卫星之间的RTT，进而终端设备在进 行上行传输(例如终端设备发送第一消息Msg1)的时候无法确定当前的TA值。这会导致网络无法根据该TA值或终端设备的位置信息确定调度时延值。此时，为了满足每个终端设备的需求，网络会配置一个较大的K_offset，这个K_offset可以基于小区的覆盖区域或波束的覆盖区域内的最大的RTT配置，这会导致传输时延较大。
目前，终端设备在NTN系统中存在双连接的场景，即终端设备是与2个小区建立连接的，在双连接场景下，上述传输时延的问题同样存在，以下具体进行描述。参阅图3，图3为本申请实施例提供的一种双连接的场景示意图。
如图3所示，C、D分别表示第一小区对应的卫星和第二小区对应的卫星，卫星C和卫星D在相同的卫星轨道，或在不同的卫星轨道，图3中以卫星C和卫星D在不同的卫星轨道为例进行绘制。A表示第一小区的覆盖区域内距离卫星C最远的点；B表示第二小区内的一个点，该点可以是第二小区的覆盖区域内距离卫星C最近的点，或者，为第二小区的覆盖区域内相对于卫星D的任一固定点(例如，距离卫星D最近的点，图3中以此为例进行绘制)。
可以看出，在该场景下，当卫星C采用A点的RTT确定调度时延值时，会导致确定的调度时延值太大，因为终端设备并不在A点的位置，而是在第二小区内。因此，会导致终端设备的上行传输时延较大。
为了解决上文中提到的终端设备上行传输的时延较大的问题，本申请实施例提供了一种新的数据传输方法，该数据传输方法根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备上行传输的时延。
基于上述任一种应用场景，下面将通过具体的实施方式对本方案提供的基于NTN的数据传输方法进行详细说明。
请参阅图4，图4为本申请实施例提供的一种数据传输方法的交互示意图，该方法包括但不限于如下步骤：
步骤401：第二网络设备确定第一时延值。其中，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，该第一小区的覆盖区域和第二小区的覆盖区域重叠。
本申请实施例中的第二网络设备为第二小区对应的网络设备，如第二小区基站等网络设备，具体可以为搭载了可用于执行计算机执行指令的处理器的不同设备，该第二网络设备可以是卫星、GSM系统或CDMA系统中的基站或网关等，具体可以是上述图1中的卫星101中的基站，用于确定第一时延值，并向终端设备发送第一时延值。
在一种可能的实施方式中，上述参考点可以是第二小区的覆盖区域内距离第一小区对应的卫星最近的点，也可以是第二小区的覆盖区域内相对于第二小区对应的卫星位置的任一固定点，本申请实施例所确定的参考点，可以使第一定时提前值的精度更高。
在一种可能的实施方式中，第一小区对应的卫星与第二小区对应的卫星可以在相同的 卫星轨道上，也可以在不同的卫星轨道上。
第一小区的覆盖区域和第二小区的覆盖区域重叠具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。
可选的，步骤401在具体实现时包括：第二网络设备根据第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。
步骤402：第二网络设备向终端设备发送第一时延值。相应的，终端设备接收第二网络设备发送的第一时延值。
在一种可能的实施方式中，第二网络设备发送广播消息或向终端设备发送无线资源控制信令或向终端设备发送媒体接入层控制信令，用于指示第二网络设备所确定的第一时延值。通过本申请实施例，向终端设备发送的第一时延值精度较高，基于该第一时延值所确定的调度时延精度也较高，可以大大降低终端设备进行上行传输的时延。其中，该第一时延值用于终端设备确定调度时延值，该调度时延值用于终端设备进行上行数据的调度。
本申请实施例中的终端设备为搭载了可用于执行计算机执行指令的处理器的设备，该终端设备可以是手机、计算机、车辆、可穿戴设备等，具体可以是上述图1中的终端设备102，建立第一小区与第二小区双连接，用于接收第二网络设备发送的第一时延值，并根据第一时延值确定调度时延值。
步骤403：终端设备根据第一时延值和第二时延值，确定调度时延值。
示例性的，终端设备可以将第一时延值、第二时延值的和确定为调度时延值。
其中，第二时延值由接收第一小区对应的广播消息得到，该第二时延值不小于第一小区广播的公共定时提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值。该确定的调度时延值为终端设备与第一网络设备进行上行传输的时延值。
可选的，该实施例提供的方法还包括：
终端设备根据上述确定的调度时延值确定上行传输资源时域位置，并在该上行传输资源时域位置上向第一网络设备发送上行数据，大大降低终端设备上行传输的时延。其中，上行数据包括下行控制信息调度的上行数据，或随机接入响应消息调度的上行数据，或混合自动重传请求确认消息，或探测参考信号等。
请参阅图5，图5为本申请实施例提供的另一种数据传输方法的交互示意图，该方法包括但不限于如下步骤：
步骤501：第二网络设备确定调度时延值。
可选的，步骤501在具体实现时包括：第二网络设备根据第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。第二网络设备通过接收第一小区对应的广播消息得到第二时延值。然后，第二网络设备将得到的第一时延值、第二时延值的和确定为调度时延值。其中，上述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，上述第二时延值不小于第一小区广播的公共定时 提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值，上述调度时延值为终端设备与第一网络设备进行上行传输的时延值。其中，第二网络设备为第二小区对应的网络设备，如第二小区基站等网络设备，第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。
本申请实施例中的第二网络设备为搭载了可用于执行计算机执行指令的处理器的不同设备，该第二网络设备可以是卫星、GSM系统或CDMA系统中的基站或网关等，具体可以是上述图1中的卫星101中的基站，用于确定调度时延值，并向终端设备发送调度时延值。
在一种可能的实施方式中，上述参考点可以是第二小区的覆盖区域内距离第一小区对应的卫星最近的点，也可以是第二小区的覆盖区域内相对于第二小区对应的卫星位置的任一固定点，本申请实施例所确定的参考点，可以使第一时延值的精度更高。
在一种可能的实施方式中，第一小区对应的卫星与第二小区对应的卫星可以在相同的卫星轨道上，也可以在不同的卫星轨道上。
步骤502：第二网络设备向终端设备发送调度时延值。相应的，终端设备接收第二网络设备发送的调度时延值。
在一种可能的实施方式中，第二网络设备发送广播消息或向终端设备发送无线资源控制信令或向终端设备发送媒体接入层控制信令，用于指示第二网络设备所确定的调度时延值。通过本申请实施例，向终端设备发送的调度时延值精度较高，该调度时延值用于终端设备进行上行数据的调度，可以大大降低终端设备进行上行传输的时延。
本申请实施例中的终端设备为搭载了可用于执行计算机执行指令的处理器的设备，该终端设备可以是手机、计算机、车辆、可穿戴设备等，具体可以是上述图1中的终端设备102，建立第一小区与第二小区双连接，用于接收第二网络设备发送的调度时延值，并根据调度时延值进行上行传输的调度。
可选的，该实施例提供的方法还包括：
终端设备根据上述确定的调度时延值确定上行传输资源时域位置，并在该上行传输资源时域位置上向第一网络设备发送上行数据，大大降低终端设备上行传输的时延。其中，上行数据包括下行控制信息调度的上行数据，或随机接入响应消息调度的上行数据，或混合自动重传请求确认消息，或探测参考信号等。
请参阅图6，图6为本申请实施例提供的又一种数据传输方法的交互示意图，该方法包括但不限于如下步骤：
步骤601：第一网络设备确定第一时延值。
可选的，步骤601在具体实现时包括：第一网络设备根据第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。其中，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第一网络设备为第一 小区对应的网络设备，如第一小区基站等网络设备，该第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。
本申请实施例中的第一网络设备为搭载了可用于执行计算机执行指令的处理器的不同设备，该第一网络设备可以是卫星、GSM系统或CDMA系统中的基站或网关等，具体可以是上述图1中的卫星101中的基站，用于确定第一时延值，并向终端设备发送第一时延值。
可选的，在步骤601之前，该实施例提供的方法还包括：
第二网络设备向第一网络设备发送第二小区的覆盖区域的位置信息，该第二小区的覆盖区域的位置信息用于确定第一时延值。其中，第二网络设备为第二小区对应的网络设备，如第二小区基站等网络设备。
本申请实施例中的第二网络设备为搭载了可用于执行计算机执行指令的处理器的不同设备，该第二网络设备可以是卫星、GSM系统或CDMA系统中的基站或网关等，具体可以是上述图1中的卫星101中的基站，用于向第一网络设备发送第二小区的覆盖区域的位置信息。
在一种可能的实施方式中，上述参考点可以是第二小区的覆盖区域内距离第一小区对应的卫星最近的点，也可以是第二小区的覆盖区域内相对于第二小区对应的卫星位置的任一固定点，本申请实施例所确定的参考点，可以使第一时延值的精度更高。
在一种可能的实施方式中，第一小区对应的卫星与第二小区对应的卫星可以在相同的卫星轨道上，也可以在不同的卫星轨道上。
步骤602：第一网络设备向终端设备发送第一时延值。相应的，终端设备接收第一网络设备发送的第一时延值。
在一种可能的实施方式中，第一网络设备发送广播消息或向终端设备发送无线资源控制信令或向终端设备发送媒体接入层控制信令，用于指示第一网络设备所确定的第一时延值。通过本申请实施例，向终端设备发送的第一时延值精度较高，基于该第一时延值所确定的调度时延精度也较高，可以大大降低终端设备进行上行传输的时延。其中，该第一时延值用于终端设备确定调度时延值，该调度时延值用于终端设备进行上行数据的调度。
本申请实施例中的终端设备为搭载了可用于执行计算机执行指令的处理器的设备，该终端设备可以是手机、计算机、车辆、可穿戴设备等，具体可以是上述图1中的终端设备102，建立第一小区与第二小区双连接，用于接收第一网络设备发送的第一时延值，并根据第一时延值确定调度时延值。
步骤603：终端设备根据第一时延值和第二时延值，确定调度时延值。
本步骤所执行的方法同上述步骤403一致，此处不再赘述。
步骤604：终端设备根据调度时延值，与第一网络设备进行上行传输。
具体的，终端设备根据上述确定的调度时延值确定上行传输资源时域位置，并在该上行传输资源时域位置上向第一网络设备发送上行数据，大大降低终端设备上行传输的时延。 其中，上行数据包括下行控制信息调度的上行数据，或随机接入响应消息调度的上行数据，或混合自动重传请求确认消息，或探测参考信号等。
图7为本申请实施例提供的又一种数据传输方法的交互示意图，该方法包括但不限于如下步骤：
步骤701：第一网络设备确定调度时延值。
可选的，步骤701在具体实现时包括：第一网络设备根据第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。第一网络设备通过接收第一小区对应的广播消息得到第二时延值。然后，第一网络设备将得到的第一时延值、第二时延值的和确定为调度时延值。其中，上述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，上述第二时延值不小于第一小区广播的公共定时提前值，具体的，该第二时延值可以为第一小区广播的公共定时提前值，上述调度时延值为终端设备与第一网络设备进行上行传输的时延值。其中，第一网络设备为第一小区对应的网络设备，如第一小区基站等网络设备，第一小区的覆盖区域和第二小区的覆盖区域重叠，具体可以是第一小区的覆盖范围与第二小区的覆盖范围有部分重叠，也可以是第一小区的覆盖范围完全包含了第二小区的覆盖范围，终端设备可以位于第一小区和第二小区的覆盖范围的重叠部分中。
本申请实施例中的第一网络设备为搭载了可用于执行计算机执行指令的处理器的不同设备，该第一网络设备可以是卫星、GSM系统或CDMA系统中的基站或网关等，具体可以是上述图1中的卫星101中的基站，用于确定调度时延值，并向终端设备发送调度时延值。
在一种可能的实施方式中，上述参考点可以是第二小区的覆盖区域内距离第一小区对应的卫星最近的点，也可以是第二小区的覆盖区域内相对于第二小区对应的卫星位置的任一固定点，本申请实施例所确定的参考点，可以使第一定时提前值的精度更高。
在一种可能的实施方式中，第一小区对应的卫星与第二小区对应的卫星可以在相同的卫星轨道上，也可以在不同的卫星轨道上。
可选的，在步骤701之前，该实施例提供的方法还包括：
第二网络设备向第一网络设备发送第二小区的覆盖区域的位置信息，该第二小区的覆盖区域的位置信息用于确定第一时延值。其中，第二网络设备为第二小区对应的网络设备，如第二小区基站等网络设备。
步骤702：第一网络设备向终端设备发送调度时延值。相应的，终端设备接收第一网络设备发送的调度时延值。
在一种可能的实施方式中，第一网络设备发送广播消息或向终端设备发送无线资源控制信令或向终端设备发送媒体接入层控制信令，用于指示第一网络设备所确定的调度时延值。通过本申请实施例，向终端设备发送的调度时延值精度较高，该调度时延值用于终端设备进行上行数据的调度，可以大大降低终端设备进行上行传输的时延。
本申请实施例中的终端设备为搭载了可用于执行计算机执行指令的处理器的设备，该 终端设备可以是手机、计算机、车辆、可穿戴设备等，具体可以是上述图1中的终端设备102，建立第一小区与第二小区双连接，用于接收第一网络设备发送的调度时延值，并根据调度时延值进行上行传输的调度。
步骤703：终端设备根据调度时延值，与第一网络设备进行上行传输。
具体的，终端设备根据上述确定的调度时延值确定上行传输资源时域位置，并在该上行传输资源时域位置上向第一网络设备发送上行数据，大大降低终端设备上行传输的时延。其中，上行数据包括下行控制信息调度的上行数据，或随机接入响应消息调度的上行数据，或混合自动重传请求确认消息，或探测参考信号等。
上述详细阐述了本申请实施例的方法，下面提供本申请实施例的装置。
请参阅图8，图8为本申请实施例提供的一种数据传输装置的结构示意图，该数据传输装置80可以包括获取单元801以及传输单元802，其中，各个单元的描述如下：
获取单元801，用于获取调度时延值；调度时延值根据第一时延值确定，或者，调度时延值根据第一时延值和第二时延值确定；第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；
传输单元802，用于根据第一调度时延值，与第一网络设备进行上行数据传输。
在一种可能的实施方式中，该装置还包括确定单元803：
获取单元801，具体用于从第一网络设备或第二网络设备接收第一时延值，第一网络设备为第一小区对应的网络设备，第二网络设备为第二小区对应的网络设备；
确定单元803，用于根据第一时延值和第二时延值确定调度时延值。
根据本申请实施例，图8所示的装置中的各个单元可以分别或全部合并为一个或若干个另外的单元来构成，或者其中的某个(些)单元还可以再拆分为功能上更小的多个单元来构成，这可以实现同样的操作，而不影响本申请的实施例的技术效果的实现。上述单元是基于逻辑功能划分的，在实际应用中，一个单元的功能也可以由多个单元来实现，或者多个单元的功能由一个单元实现。在本申请的其它实施例中，基于网络设备也可以包括其它单元，在实际应用中，这些功能也可以由其它单元协助实现，并且可以由多个单元协作实现。
需要说明的是，各个单元的实现还可以对应参照上述图4至图7所示的方法实施例的相应描述。
在本申请的实施例中，该数据传输装置可以是上文示出的终端设备或终端设备中的芯片等。即该数据传输装置可以用于执行上文方法实施例中由终端设备执行的步骤或功能等。
在图8所描述的数据传输装置80中，根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
以上介绍了本申请实施例的数据传输装置，以下介绍数据传输装置可能的产品形态。 应理解，但凡具备上述图8的数据传输装置的功能的任何形态的产品，都落入本申请实施例的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的数据传输装置的产品形态仅限于此。
在一种可能的实施方式中，图8所示的数据传输装置中，各个处理单元可以对应于一个或多个处理器，其中，获取单元801可以对应于接收器，传输单元802可以对应于发射器，该获取单元801和传输单元802还可以集成于一个器件，例如收发器。本申请实施例中，处理器和收发器可以被耦合等，本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。对于处理器和收发器的连接方式，本申请实施例不作限定。
请参阅图9，图9为本申请实施例提供的一种数据传输装置的结构示意图，该数据传输装置90可以包括确定单元901以及发送单元902，其中，各个单元的描述如下：
确定单元901，用于根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，调度时延值用于上行数据的调度；第一网络设备为第一小区对应的网络设备，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；发送单元902，用于向终端设备发送调度时延值；
或者，
发送单元902，用于向终端设备发送第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第一时延值用于确定调度时延值，调度时延值用于上行数据的调度，第二小区的覆盖区域与第一小区的覆盖区域重叠。
在一种可能的实施方式中，该装置还包括接收单元903：
接收单元903，用于接收第二网络设备发送的第二小区的覆盖区域的位置信息；第二网络设备为第二小区对应的网络设备；
确定单元901，用于根据第二小区的覆盖区域的位置信息以及第一小区对应的卫星的位置信息，确定第一时延值。
根据本申请实施例，图9所示的装置中的各个单元可以分别或全部合并为一个或若干个另外的单元来构成，或者其中的某个(些)单元还可以再拆分为功能上更小的多个单元来构成，这可以实现同样的操作，而不影响本申请的实施例的技术效果的实现。上述单元是基于逻辑功能划分的，在实际应用中，一个单元的功能也可以由多个单元来实现，或者多个单元的功能由一个单元实现。在本申请的其它实施例中，基于网络设备也可以包括其它单元，在实际应用中，这些功能也可以由其它单元协助实现，并且可以由多个单元协作实现。
需要说明的是，各个单元的实现还可以对应参照上述图4至图7所示的方法实施例的相应描述。
在本申请的实施例中，该数据传输装置可以是上文示出的第一网络设备或第一网络设备中的芯片等。即该数据传输装置可以用于执行上文方法实施例中由第一网络设备执行的 步骤或功能等。
在图9所描述的数据传输装置90中，根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
以上介绍了本申请实施例的数据传输装置，以下介绍数据传输装置可能的产品形态。应理解，但凡具备上述图9的数据传输装置的功能的任何形态的产品，都落入本申请实施例的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的数据传输装置的产品形态仅限于此。
在一种可能的实施方式中，图9所示的数据传输装置中，各个处理单元可以对应于一个或多个处理器，其中，接收单元903可以对应于接收器，发送单元902可以对应于发射器，该接收单元903和发送单元902还可以集成于一个器件，例如收发器。本申请实施例中，处理器和收发器可以被耦合等，本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。对于处理器和收发器的连接方式，本申请实施例不作限定。
请参阅图10，图10为本申请实施例提供的一种数据传输装置的结构示意图，该数据传输装置100可以包括确定单元1001、发送单元1002，其中，各个单元的描述如下：
确定单元1001，用于根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；发送单元1002，用于向终端设备发送调度时延值，调度时延值用于上行数据的调度；
或者，
发送单元1002，用于向终端设备发送第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第一时延值用于确定调度时延值，调度时延值用于上行数据的调度，第二小区的覆盖区域与第一小区的覆盖区域重叠；
或者，
发送单元1002，用于向第一网络设备发送第二小区的覆盖区域的位置信息；第一网络设备为第一小区对应的网络设备，第二小区的覆盖区域与第一小区的覆盖区域重叠，第二小区的覆盖区域的位置信息用于确定第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值。
根据本申请实施例，图10所示的装置中的各个单元可以分别或全部合并为一个或若干个另外的单元来构成，或者其中的某个(些)单元还可以再拆分为功能上更小的多个单元来构成，这可以实现同样的操作，而不影响本申请的实施例的技术效果的实现。上述单元是基于逻辑功能划分的，在实际应用中，一个单元的功能也可以由多个单元来实现，或者多个单元的功能由一个单元实现。在本申请的其它实施例中，基于网络设备也可以包括其它单元，在实际应用中，这些功能也可以由其它单元协助实现，并且可以由多个单元协作 实现。
需要说明的是，各个单元的实现还可以对应参照上述图4至图7所示的方法实施例的相应描述。
在本申请的实施例中，该数据传输装置可以是上文示出的第二网络设备或第二网络设备中的芯片等。即该数据传输装置可以用于执行上文方法实施例中由第二网络设备执行的步骤或功能等。
在图10所描述的数据传输装置100中，根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
以上介绍了本申请实施例的数据传输装置，以下介绍数据传输装置可能的产品形态。应理解，但凡具备上述图10的数据传输装置的功能的任何形态的产品，都落入本申请实施例的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的数据传输装置的产品形态仅限于此。
在一种可能的实施方式中，图10所示的数据传输装置中，各个处理单元可以对应于一个或多个处理器，其中，发送单元1002可以对应于发射器，还可以集成于一个收发器中。本申请实施例中，处理器和收发器可以被耦合等，本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。对于处理器和收发器的连接方式，本申请实施例不作限定。
请参阅图11，图11为本申请实施例提供的一种通信装置110的结构示意图。该通信装置110可以包括存储器1101、处理器1102。进一步可选的，还可以包含通信接口1103以及总线1104，其中，存储器1101、处理器1102以及通信接口1103通过总线1104实现彼此之间的通信连接。通信接口1103用于与其他装置进行数据交互。
本申请实施例中不限定上述通信接口1103、处理器1102以及存储器1101之间的具体连接介质。本申请实施例在图11中以存储器1101、处理器1102以及通信接口1103之间通过总线1104连接，总线在图11中以标号标出，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条线表示，但并不表示仅有一根总线或一种类型的总线。
其中，存储器1101用于提供存储空间，存储空间中可以存储操作系统和计算机程序等数据。存储器1101包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
处理器1102是进行算术运算和逻辑运算的模块，可以是中央处理器(central processing unit，CPU)、显卡处理器(graphics processing unit，GPU)或微处理器 (microprocessor unit，MPU)等处理模块中的一种或者多种的组合。处理器可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图，结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成等。
存储器1101中存储有计算机程序，处理器1102调用存储器1101中存储的计算机程序，以执行上述图4至图7所示的数据传输方法：
获取调度时延值；调度时延值根据第一时延值确定，或者，调度时延值根据第一时延值和第二时延值确定；第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；
根据调度时延值，与第一网络设备进行上行数据传输。
上述处理器1102执行方法的具体内容可参阅上述图4至图7，此处不再赘述。
相应的，处理器1102调用存储器1101中存储的计算机程序，还可以用于执行上述图8所示的数据传输装置80中的各个单元所执行的方法步骤，其具体内容可参阅上述图8，此处不再赘述。
另一方面，存储器1101中存储有计算机程序，处理器1102调用存储器1101中存储的计算机程序，以执行上述图4至图7所示的数据传输方法：
根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，调度时延值用于上行数据的调度；第一网络设备为第一小区对应的网络设备，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；向终端设备发送调度时延值；
或者，
向终端设备发送第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第一时延值用于确定调度时延值，调度时延值用于上行数据的调度，第二小区的覆盖区域与第一小区的覆盖区域重叠。
上述处理器1102执行方法的具体内容可参阅上述图4至图7，此处不再赘述。
相应的，处理器1102调用存储器1101中存储的计算机程序，还可以用于执行上述图9所示的数据传输装置90中的各个单元所执行的方法步骤，其具体内容可参阅上述图9，此处不再赘述。
又一方面，存储器1101中存储有计算机程序，处理器1102调用存储器1101中存储的计算机程序，以执行上述图4至图7所示的数据传输方法：
根据第一时延值，或者，根据第一时延值和第二时延值，确定调度时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第二时延值不小于第一小区广播的公共定时提前值，第二小区的覆盖区域与第一小区的覆盖区域重叠；向终端设备发送调度时延值，调度时延值用于上行数据的调度；
或者，
向终端设备发送第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，第一时延值用于确定调度时延值，调度时延值用于上行数据的调度，第二小区的覆盖区域与第一小区的覆盖区域重叠；
或者，
向第一网络设备发送第二小区的覆盖区域的位置信息；第一网络设备为第一小区对应的网络设备，第二小区的覆盖区域与第一小区的覆盖区域重叠，第二小区的覆盖区域的位置信息用于确定第一时延值，第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值。
上述处理器1102执行方法的具体内容可参阅上述图4至图7，此处不再赘述。
相应的，处理器1102调用存储器1101中存储的计算机程序，还可以用于执行上述图10所示的数据传输装置100中的各个单元所执行的方法步骤，其具体内容可参阅上述图10，此处不再赘述。
在图11所描述的通信装置110中，根据获取到的调度时延值，与第一网络设备进行上行数据传输，其中，根据第一时延值，或根据第一时延值和第二时延值确定的调度时延值精度较高，可以大大降低终端设备数据传输的时延。
可理解，本申请实施例示出的通信装置还可以具有比图11更多的元器件等，本申请实施例对此不作限定。以上所示的处理器所执行的方法仅为示例，对于该处理器具体所执行的步骤可参照上文介绍的方法。
请参阅图12，图12为本申请实施例提供的一种通信装置的结构示意图。
该通信装置包括逻辑电路1201和接口1202。其中，该逻辑电路1201可以为芯片、处理电路、集成电路或片上系统(system on chip，SoC)芯片等，接口1202可以为通信接口、输入输出接口、管脚等。示例性的，图12是以上述通信装置为芯片为例示出的，该芯片包括逻辑电路1201和接口1202。
本申请实施例中，逻辑电路和接口还可以相互耦合。对于逻辑电路和接口的具体连接方式，本申请实施例不作限定。
可理解，关于逻辑电路和接口的具体说明，可以参考图11所示的装置。
可理解，本申请实施例示出的通信装置可以采用硬件的形式实现本申请实施例提供的方法，也可以采用软件的形式实现本申请实施例提供的方法等，本申请实施例对此不作限定。
对于图12所示的各个实施例的具体实现方式，还可以参考上述各个实施例，这里不再详述。
本申请实施例还提供一种计算机可读存储介质，上述计算机可读存储介质中存储有计算机程序，当上述计算机程序在一个或多个处理器上运行时，可以实现上述图4、图5、图6、图7所示的方法。
本申请实施例还提供一种计算机程序产品，上述计算机程序产品包括计算机程序，当 上述计算机程序产品在处理器上运行时，可以实现上述图4、图5、图6、图7所示的方法。
本申请实施例还提供一种芯片，该芯片包括处理器，处理器用于执行指令，当该处理器执行指令时，可以实现上述图4、图5、图6、图7所示的方法。可选的，该芯片还包括通信接口，该通信接口用于输入信号或输出信号。
本申请实施例还提供了一种系统，该系统包括了至少一个如上述数据传输装置80或数据传输装置90或数据传输装置100或通信装置110或图12中的通信装置或芯片。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，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，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例提供的方案的技术效果。
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，也可以是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，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请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，该计算机软件产品存储在一个可读存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的可读存储介质包括：U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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 (28)

  1. 一种数据传输方法，应用于终端设备，其特征在于，包括：
    获取调度时延值；所述调度时延值根据第一时延值确定，或者，所述调度时延值根据第一时延值和第二时延值确定；所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
    根据所述调度时延值，与第一网络设备进行上行数据传输。
  2. 根据权利要求1所述的方法，其特征在于，所述获取调度时延值，包括：
    从所述第一网络设备或第二网络设备接收所述调度时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    从所述第一网络设备或所述第二网络设备接收所述第一时延值，所述第一网络设备为所述第一小区对应的网络设备，所述第二网络设备为所述第二小区对应的网络设备；
    所述获取调度时延值，包括：
    根据所述第一时延值和所述第二时延值确定所述调度时延值。
  4. 根据权利要求3所述的方法，其特征在于，所述调度时延值为所述第一时延值与所述第二时延值之和。
  5. 根据权利要求3或4所述的方法，其特征在于，所述方法还包括：
    通过所述第一小区对应的广播消息获取所述第二时延值。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述根据所述调度时延值，与第一网络设备进行上行数据传输，包括：
    根据所述调度时延值确定上行传输资源时域位置，在所述上行传输资源时域位置上向所述第一网络设备发送上行数据。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
  10. 一种数据传输方法，应用于第一网络设备，其特征在于，包括：
    根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述调度时延值用于上行数据的调度；所述第一网络设备为第一小区对应的网络设备，所述第一时延值为所述第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；向终端设备发送所述调度时延值；
    或者，
    向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠。
  11. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    接收第二网络设备发送的所述第二小区的覆盖区域的位置信息；所述第二网络设备为所述第二小区对应的网络设备；
    根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息，确定所述第一时延值。
  12. 根据权利要求10或11所述的方法，其特征在于，所述方法还包括：
    通过所述第一小区对应的广播消息获取所述第二时延值。
  13. 根据权利要求10至12中任一项所述的方法，其特征在于，所述根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，包括：
    将所述第一时延值作为所述调度时延值；
    或者，将所述第一时延值、所述第二时延值的和作为所述调度时延值。
  14. 根据权利要求10至13中任一项所述的方法，其特征在于，所述向终端设备发送所述调度时延值，包括：
    向所述终端设备发送无线资源控制信令或媒体接入层控制信令，所述无线资源控制信令或所述媒体接入层控制信令用于向所述终端设备指示所述调度时延值。
  15. 根据权利要求10至14中任一项所述的方法，其特征在于，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
  16. 根据权利要求10至15中任一项所述的方法，其特征在于，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
  17. 一种数据传输方法，应用于第二网络设备，其特征在于，包括：
    根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；向终端设备发送所述调度时延值，所述调度时延值用于上行数据的调度；
    或者，
    向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
    或者，
    向第一网络设备发送第二小区的覆盖区域的位置信息；所述第一网络设备为第一小区对应的网络设备，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠，所述第二小区的覆盖区域的位置信息用于确定第一时延值，所述第一时延值为所述第一小区对应的卫星到所述第二小区的覆盖区域内的参考点的往返传输时延值。
  18. 根据权利要求17所述的方法，其特征在于，所述根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，包括：
    将所述第一时延值作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定；
    或者，将所述第一时延值、所述第二时延值的和作为所述调度时延值；所述第一时延值根据所述第二小区的覆盖区域的位置信息以及所述第一小区对应的卫星的位置信息确定，所述第二时延值通过所述第一小区对应的广播消息得到。
  19. 根据权利要求17或18所述的方法，其特征在于，所述向终端设备发送所述调度时延值，包括：
    发送广播消息或向所述终端设备发送无线资源控制信令或向所述终端设备发送媒体接入层控制信令；所述广播消息或所述无线资源控制信令或所述媒体接入层控制信令用于指示所述调度时延值。
  20. 根据权利要求17至19中任一项所述的方法，其特征在于，所述参考点为所述第一小区对应的卫星到所述第二小区的覆盖区域内最远的点。
  21. 根据权利要求17至20中任一项所述的方法，其特征在于，所述第一小区对应的卫星与所述第二小区对应的卫星在相同的卫星轨道，或在不同的卫星轨道。
  22. 一种数据传输装置，其特征在于，包括：
    获取单元，用于获取调度时延值；所述调度时延值根据第一时延值确定，或者，所述调度时延值根据第一时延值和第二时延值确定；所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
    传输单元，用于根据所述第一调度时延值，与所述第一网络设备进行上行数据传输。
  23. 一种数据传输装置，其特征在于，包括：
    确定单元，用于根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述调度时延值用于上行数据的调度；所述第一网络设备为第一小区对应的网络设备，所述第一时延值为所述第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；发送单元，用于向终端设备发送所述调度时延值；
    或者，
    发送单元，用于向终端设备发送第一时延值，所述第一时延值为所述第一小区对应的卫星到所述第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠。
  24. 一种数据传输装置，其特征在于，包括：
    确定单元，用于根据第一时延值，或者，根据所述第一时延值和第二时延值，确定调度时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第二时延值不小于所述第一小区广播的公共定时提前值，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；发送单元，用于向终端设备发送所述调度时延值，所述调度时延值用于上行数据的调度；
    或者，
    发送单元，用于向终端设备发送第一时延值，所述第一时延值为第一小区对应的卫星到第二小区的覆盖区域内的参考点的往返传输时延值，所述第一时延值用于确定调度时延值，所述调度时延值用于上行数据的调度，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠；
    或者，
    发送单元，用于向第一网络设备发送第二小区的覆盖区域的位置信息；所述第一网络 设备为第一小区对应的网络设备，所述第二小区的覆盖区域与所述第一小区的覆盖区域重叠，所述第二小区的覆盖区域的位置信息用于确定第一时延值，所述第一时延值为所述第一小区对应的卫星到所述第二小区的覆盖区域内的参考点的往返传输时延值。
  25. 一种通信装置，其特征在于，包括：处理器和存储器；
    所述存储器用于存储计算机执行指令；
    所述处理器用于执行所述存储器所存储的计算机执行指令，以使所述通信装置执行如权利要求1至9中任一项所述的方法，或者，使所述通信装置执行如权利要求10至16中任一项所述的方法，或者，使所述通信装置执行如权利要求17至21中任一项所述的方法。
  26. 一种通信装置，其特征在于，包括：逻辑电路和接口；所述逻辑电路和接口耦合；
    所述接口用于输入和/或输出代码指令，所述逻辑电路用于执行所述代码指令，以使权利要求1至9中任一项所述的方法被执行，或者，使权利要求10至16中任一项所述的方法被执行，或者，使权利要求17至21中任一项所述的方法被执行。
  27. 一种计算机可读存储介质，其特征在于，包括：
    所述计算机可读存储介质用于存储指令或计算机程序；当所述指令或所述计算机程序被执行时，使如权利要求1至9中任一项所述的方法被实现，或者，使如权利要求10至16中任一项所述的方法被实现，或者，使如权利要求17至21中任一项所述的方法被实现。
  28. 一种计算机程序产品，其特征在于，包括：指令或计算机程序；
    所述指令或所述计算机程序被执行时，使如权利要求1至9中任一项所述的方法被实现，或者，使如权利要求10至16中任一项所述的方法被实现，或者，使如权利要求17至21中任一项所述的方法被实现。
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