WO2021147102A1 - 一种传输数据的方法和设备 - Google Patents

一种传输数据的方法和设备 Download PDF

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Publication number
WO2021147102A1
WO2021147102A1 PCT/CN2020/074027 CN2020074027W WO2021147102A1 WO 2021147102 A1 WO2021147102 A1 WO 2021147102A1 CN 2020074027 W CN2020074027 W CN 2020074027W WO 2021147102 A1 WO2021147102 A1 WO 2021147102A1
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WIPO (PCT)
Prior art keywords
feedback
data
correspondence
resource
feedback information
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PCT/CN2020/074027
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English (en)
French (fr)
Inventor
张莉莉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/074027 priority Critical patent/WO2021147102A1/zh
Priority to CN202080092027.1A priority patent/CN114930751B/zh
Publication of WO2021147102A1 publication Critical patent/WO2021147102A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for transmitting data.
  • SL Side Link
  • the embodiments of the present application provide a method and device for transmitting data, which are used for data transmission between devices.
  • the first aspect of the embodiments of the present application provides a method for transmitting data, including:
  • the first device receives data from the second device
  • the first device obtains a first correspondence, the first correspondence includes the correspondence between the feedback resource and the area where the first device is located, the correspondence between the feedback resource and the identity of the first device, or the correspondence between the feedback resource and the identity of the second device relation;
  • the first device determines the feedback resource according to the first correspondence
  • the first device sends the first feedback information to the second device on the feedback resource.
  • the first device determines the feedback resource according to the first corresponding relationship, and then sends the first feedback information according to the feedback resource, so that the second device learns the situation of the first device receiving data in time.
  • the first device is one of a group of devices that receives data from the second device.
  • an embodiment of the present application provides a second implementation manner of the first aspect, and the first feedback information indicates that the first device receives data incorrectly.
  • the first feedback information enables the second device to determine in time that the data received by the first device is incorrect, and then retransmit the data to the first device.
  • the embodiments of the present application provide the third implementation manner of the first aspect
  • the first feedback information indicates that the data received by the first device is correct.
  • the embodiments of the present application provide the fourth implementation of the first aspect.
  • Sending the first feedback information by the first device to the second device on the feedback resource includes:
  • the first device Based on meeting the preset condition, the first device sends the first feedback information to the second device on the feedback resource.
  • the first device when the preset condition is met, the first device sends the first feedback information to the second device.
  • the embodiments of the present application provide the fifth implementation manner of the first aspect, and the feedback resource is a frequency domain resource or a time domain resource.
  • the corresponding frequency domain resources may be different, and the corresponding time domain resources may also be different.
  • the embodiments of the present application provide the sixth implementation manner of the first aspect, and the feedback resource is a time domain resource;
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, the third device belongs to one of the N devices, and the third device is located The maximum distance between the area and the second device is greater than the maximum distance between the area where the first device is located and the second device.
  • the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device, so the time domain corresponding to the area where the third device is located
  • the resource is earlier on the time axis than the time domain resource corresponding to the area where the first device is located, so the time when the third device sends the feedback information is earlier than the time when the first device sends the first feedback information.
  • sending the first feedback information to the second device by the first device on the feedback resource includes :
  • the first device Based on the error in the data received by the first device and the signal strength of the second feedback information received from the third device is less than or equal to the preset first signal strength, the first device sends the first feedback information to the second device.
  • the signal strength of the second feedback information received by the first device from the third device is less than or equal to the preset first signal strength, indicating that the second device may not receive the second feedback information, so the second device may not
  • the three devices perform data retransmission. Therefore, even if the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device, the first device cannot be in the first device.
  • the second device receives data in the process of retransmitting data to the third device. In this case, based on an error in the data received by the first device, the first device will send the first feedback information to the second device.
  • the embodiments of the present application provide the eighth implementation manner of the first aspect, and the method further includes:
  • the first device Based on that the data received by the first device is correct, and the signal strength of the second feedback information received from the third device is less than or equal to the preset first signal strength, the first device sends the second feedback information to the second device.
  • the signal strength of the second feedback information received by the first device from the third device is less than or equal to the preset first signal strength, indicating that the second device may not receive the second feedback information, so the second device may not
  • the three devices perform data retransmission.
  • the first device sends the second feedback information to the second device.
  • the embodiments of the present application provide the ninth implementation manner of the first aspect, and the method further includes:
  • the first device Based on the error in the data received by the first device and the signal strength of the second feedback information received from the third device is greater than or equal to the preset first signal strength, the first device does not send the first feedback information to the second device.
  • the signal strength of the second feedback information received by the first device from the third device is greater than or equal to the preset first signal strength, which means that the second device will receive the second feedback information, so the second device will perform a check on the third device.
  • Data retransmission and because the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device, the first device is in the second device to the third device.
  • the device can receive data during data retransmission. Therefore, based on the error in the data received by the first device, the first device does not need to send the first feedback information to the second device.
  • the second aspect of the embodiments of the present application provides a data transmission method, including:
  • the second device first sends data to the first device at a first transmission power, and the first transmission power ensures that the first device is within the coverage area of the second device;
  • the second device then receives the first feedback information on the feedback resource from the first device, the feedback resource is determined by the first device according to the first correspondence, where the first correspondence includes the correspondence between the feedback resource and the area where the first device is located Relationship, the corresponding relationship between the feedback resource and the identifier of the first device, or the corresponding relationship between the feedback resource and the identifier of the second device;
  • the second device sends data to the first device. Based on the first feedback information sent after the first device receives the data, the second device can learn about the situation of the first device receiving the data in time.
  • the second device sending data to the first device at the first transmission power includes:
  • the second device uses the first transmission power to send data to N devices including the first device, where N is a positive integer.
  • the embodiments of the present application provide the second implementation manner of the second aspect, and the first feedback information is used to indicate that the first device receives data incorrectly;
  • the method further includes:
  • the second device sends data to the first device at the second transmission power according to the first feedback information.
  • the second device sends data to the first device at the second transmission power, so as to retransmit the data to the first device.
  • an embodiment of the present application provides a third implementation manner of the second aspect, and the second transmission power is the same as the first transmission power.
  • the embodiments of the present application provide the fourth implementation manner of the second aspect, and the second transmission power is different from the first transmission power.
  • the embodiments of the present application provide the fifth implementation manner of the second aspect, and the first correspondence relationship includes the correspondence relationship between the feedback resource and the area where the first device is located;
  • the method further includes:
  • the second device determines the area where the first device is located according to the first correspondence and the feedback resource
  • the second device determines the second transmission power according to the area where the first device is located.
  • the second transmission power may be the same as the first transmission power or different from the first transmission power.
  • the embodiments of the present application provide the second implementation manner of the first aspect, and the feedback resource is a frequency domain resource or a time domain resource.
  • a third aspect of the embodiments of the present application provides a data transmission device, including:
  • a receiving unit for receiving data from the second device
  • the processing unit is further configured to determine the feedback resource according to the first corresponding relationship
  • a sending unit configured to send the first feedback information to the second device on the feedback resource
  • the first correspondence relationship includes the correspondence relationship between the feedback resource and the area where the first device is located, the correspondence relationship between the feedback resource and the identity of the first device, or the correspondence relationship between the feedback resource and the identity of the second device.
  • the embodiments of the present application provide the first implementation manner of the third aspect, and the device for transmitting data is one of N devices that receives data from the second device.
  • the embodiments of the present application provide the second implementation manner of the third aspect, and the first feedback information indicates that the first device receives data incorrectly.
  • the embodiments of the present application provide the third implementation manner of the third aspect.
  • the first feedback information indicates that the data received by the first device is correct.
  • the embodiments of the present application provide the fourth implementation manner of the third aspect.
  • the sending unit is configured to send the first feedback information to the second device by the first device on the feedback resource based on meeting the preset condition.
  • the embodiments of the present application provide the fifth implementation manner of the third aspect, and the feedback resource is a frequency domain resource or a time domain resource.
  • the embodiments of the present application provide the sixth implementation manner of the third aspect, and the feedback resource is a time domain resource;
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, the third device belongs to one of the N devices, and the third device is located The maximum distance between the area and the second device is greater than the maximum distance between the area where the first device is located and the second device.
  • the embodiments of the present application provide the seventh implementation manner of the third aspect, and the sending unit is configured to:
  • the first feedback information is sent to the second device.
  • the embodiments of the present application provide the eighth implementation manner of the third aspect, and the sending unit is configured to:
  • the second feedback information is sent to the second device.
  • the embodiments of the present application provide the ninth implementation manner of the third aspect, and the sending unit is configured to:
  • the first feedback information is not sent to the second device.
  • a fourth aspect of the embodiments of the present application provides a data transmission device, including:
  • a sending unit configured to send data to the first device at the first transmission power
  • the receiving unit is configured to receive the first feedback information on the feedback resource from the first device, the feedback resource is determined by the first device according to the first correspondence, and the first correspondence includes the feedback resource and the area where the first device is located.
  • the sending unit is configured to send data to N devices including the first device at a first transmission power, and N is a positive integer.
  • the embodiments of the present application provide the second implementation manner of the fourth aspect, and the first feedback information is used to indicate that the first device receives data incorrectly;
  • the sending unit is further configured to send data to the first device at the second transmission power according to the first feedback information.
  • the embodiments of the present application provide the third implementation manner of the fourth aspect, and the second transmission power is the same as the first transmission power.
  • an embodiment of the present application provides the fourth implementation manner of the fourth aspect, and the second transmission power is different from the first transmission power.
  • the embodiments of the present application provide the fifth implementation manner of the fourth aspect, and the first correspondence includes the correspondence between the feedback resource and the area where the first device is located;
  • the data transmission device also includes a processing unit, and the processing unit is used to:
  • the second transmission power is determined according to the area where the first device is located.
  • the feedback resource is a frequency domain resource or a time domain resource.
  • the fifth aspect of the embodiments of the present application provides a data transmission device, including: at least one processor and a memory, the memory stores computer-executable instructions that can run on the processor, and when the computer-executable instructions are executed by the processor At this time, the terminal device executes the data transmission method described in any one of the foregoing first aspect or second aspect.
  • the sixth aspect of the embodiments of the present application provides a chip or a chip system.
  • the chip or chip system includes at least one processor and a communication interface.
  • the communication interface and the at least one processor are interconnected by wires, and the at least one processor is used to run computer programs or instructions. , To execute the method for transmitting data as described in any one of the implementation manners of the first aspect or the second aspect.
  • a seventh aspect of the embodiments of the present application provides a computer storage medium, which is used to store computer software instructions used for the above-mentioned terminal device, and includes a program used to execute the program designed for the data transmission device;
  • the data transmission device may be the data transmission device described in the foregoing first aspect or the foregoing second aspect.
  • the eighth aspect of the embodiments of the present application provides a computer program product, the computer program product includes computer software instructions, the computer software instructions can be loaded by a processor to achieve the above-mentioned first aspect or any one of the second aspect The method of transferring data described above.
  • a ninth aspect of the embodiments of the present application provides a method for transmitting data, including: a second device sends data to be transmitted to a first device at a first transmission power, and the second device uses a first transmission power according to a preset first target. Transmission power determination;
  • the second device sends the data to be transmitted to the first device at a second transmission power, and the second transmission power is determined by the second device according to a preset second target transmission power.
  • the embodiments of the present application provide the first implementation manner of the first aspect, where the first target transmission power and the second target transmission power are the same.
  • the embodiments of the present application provide a second implementation manner of the first aspect, where the first target transmission power and the second transmission power are different.
  • the first device receives data from the second device, where the first device is one of N devices that receive data from the second device; the first device obtains the first correspondence,
  • the first correspondence may include the correspondence between the feedback resource and the area where the first device is located, the correspondence between the feedback resource and the identity of the first device, or the correspondence between the feedback resource and the identity of the second device, and then the first device according to the first device A corresponding relationship determines the feedback resource; based on meeting the preset condition, the first device sends the first feedback information to the second device on the feedback resource.
  • the first feedback information indicates that the first device receives the data incorrectly. In this way, the second device can A feedback message retransmits data to the first device.
  • FIG. 1 is a schematic diagram of an application scenario of a method for transmitting data in an embodiment of the application
  • FIG. 2 is a schematic diagram of an embodiment of a method for transmitting data in an embodiment of the application
  • FIG. 3 is a schematic diagram of an embodiment of area division of a target area in an embodiment of this application.
  • FIG. 4 is a schematic diagram of a signal coverage area of a third device in an embodiment of this application.
  • FIG. 5 is a schematic diagram of an embodiment of a data transmission device in an embodiment of the application.
  • Fig. 6 is a schematic diagram of another embodiment of a data transmission device in an embodiment of the application.
  • FIG. 7 is a schematic diagram of an embodiment of a device for transmitting data in an embodiment of the application.
  • FIG. 8 is a schematic diagram of another embodiment of a device for transmitting data in an embodiment of the application.
  • FIG. 1 is a schematic diagram of an application scenario of the transmission method in an embodiment of the present application.
  • data can be directly transmitted between devices, where the device can be a terminal device or a network device.
  • the embodiments of the present application can also be applied to a comprehensive backhaul access link, where any device can be a network device, and data can be directly transmitted between network devices.
  • Terminal device also called user equipment (user equipment, UE)
  • UE user equipment
  • Terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (Such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, satellites, etc.).
  • the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • industrial control industrial control
  • Wireless terminals in wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, and wireless terminals in transportation safety , Wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the UE is used instead of the terminal device in FIG. 1 to describe the process of transmitting the device between the devices.
  • UE0 can transmit data to UE1, UE2, UE3, and UE4 in the target area. Accordingly, UE1, UE2, UE3, and UE4 will send a feedback message to UE0, which indicates that it receives data correctly or receives data. Error; Taking UE2 receiving data error as an example, UE0 will re-send data to UE2.
  • this embodiment of the application provides a data transmission method for data transmission between devices, and can also Retransmit data to the device that received the wrong data.
  • FIG. 2 is a schematic diagram of an embodiment of a method for transmitting data in an embodiment of the present application.
  • an embodiment of the present application provides an embodiment of a method for transmitting data, including:
  • Step 101 The second device sends data to the first device with the first transmission power.
  • the second device may send data to N devices including the first device at the first transmission power, and N is a positive integer.
  • the second device transmits data at the first transmission power
  • the first transmission power corresponds to a signal coverage area. All devices within the signal coverage area can receive the data.
  • the coverage area is called the target area; among them, the first transmission power can be selected according to actual needs, as long as the target area can cover N devices, and the method of sending data can be broadcast or multicast. , It can also be unicast.
  • the second device is UE0
  • the N devices include UE1, UE2, UE3, and UE4.
  • the first transmission power corresponds to the target area in Figure 1 and covers N devices. Therefore, UE0 can communicate to UE1, UE2, and UE3. Send data with UE4.
  • the first device receives data from the second device, where the first device may be one of N devices that receive data from the second device.
  • the first device may be UE1 and UE2. , UE3 and UE4.
  • Step 102 The first device obtains the first correspondence.
  • the first device may obtain the first correspondence, which is not limited in the embodiment of this application; for example, the first correspondence may be preset in the first device, and the first device can read The first correspondence relationship is obtained in the manner of; for another example, the first device may also obtain the first correspondence relationship from the second device.
  • the first correspondence may include a variety of contents. Specifically, the first correspondence includes but is not limited to the correspondence between the feedback resource and the area where the first device is located, the correspondence between the feedback resource and the identifier of the first device, or the feedback resource and the first device. 2. Correspondence of device identification.
  • the target area can be specifically divided into multiple areas, and each area can use the first
  • the identifier is marked, and the first identifier may be a zone ID (zone ID), a subzone ID (subzone ID), a range ID (range ID), or a subrange ID (subrange ID).
  • the target area can be divided into multiple areas by various methods. Specifically, the target area can be divided into multiple areas based on any one or more of location information, signal strength/signal energy, or path loss information. Regions.
  • the signal strength can be represented by one or more of Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Received Signal Strength Indicator (RSSI)
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • RSSI Received Signal Strength Indicator
  • the first identifier when the first identifier is used to mark the area, the first identifier may be determined according to any one or more of location information, signal strength/signal energy, or path loss information.
  • FIG. 3 is a schematic diagram of an embodiment of the area division of the target area in the embodiment of the application.
  • the target area It includes a first area, a second area, and a third area.
  • UE1 is located in the third area
  • UE2 and UE3 are located in the second area
  • UE4 is located in the first area.
  • the first correspondence includes the correspondence between the feedback resource and the second area.
  • the embodiment of the present application does not limit the execution order of step 102 and step 101.
  • Step 103 The first device determines the feedback resource according to the first correspondence.
  • the first device may determine the feedback resource according to the area and the first correspondence; when the first correspondence includes the feedback resource and the first correspondence When the corresponding relationship between the identifier of a device, the first device may determine the feedback resource according to the identifier of the first device and the first corresponding relationship; when the first corresponding relationship includes the corresponding relationship between the feedback resource and the identifier of the second device, the first device The device may determine the feedback resource according to the identifier of the second device and the first correspondence.
  • the feedback resource can be based on the second identifier of any one or more of the subchannel (subchannel), physical resource block (PRB) or resource element (resource element, RE) from small to large.
  • the order is arranged in ascending order on the frequency domain resources; in the time domain, the feedback resource at a time point can correspond to multiple sidelink physical shared channels (PSSCH), so these multiple PSSCHs correspond to the feedback
  • PSSCH sidelink physical shared channels
  • the resources may be arranged in ascending order from smallest to largest in the frequency domain at the time point according to the descending order of the third identifier where the PSSCH is located.
  • the third identifier includes slot index, or symbol index, or a joint indication of the index of slot and symbol.
  • the identification (including the first identification, the second identification, or the third identification) mentioned in the embodiments of the present application can be represented by an identification number ID, or can be represented by an index (index).
  • the first correspondence relationship includes the correspondence relationship between the feedback resource and the identity of the first device, assuming that the identity of the first device is represented by a number, as the identity of the first device increases, the feedback resources may be in ascending order arrangement.
  • the feedback resource can become Ascending.
  • the first correspondence relationship includes the correspondence relationship between the feedback resource and the identity of the first device and the identity of the second device, assuming that the identity of the first device and the identity of the second device are both represented by numbers
  • the feedback The resources may be arranged in ascending order as either one of the identification of the first device and the identification of the second device increases.
  • the feedback resources may be in descending order arrangement.
  • the feedback resource can become descending sort.
  • the feedback The resources may decrease with either the identification of the first device and the identification of the second device, and the feedback resources may be arranged in descending order.
  • the first correspondence relationship includes the correspondence relationship between the feedback resource and the identity of the first device, assuming that the identity of the first device is represented by a number, as the identity of the first device increases, the feedback resources may be in descending order arrangement.
  • the first corresponding relationship includes the corresponding relationship between the feedback resource and the identifier of the second device
  • the identifier of the second device is also represented by numbers
  • the feedback resource can become descending sort.
  • the feedback The resource may increase with either the identifier of the first device and the identifier of the second device, and the feedback resources may be arranged in descending order.
  • the feedback resources may be in ascending order arrangement.
  • the feedback resource can become Ascending.
  • the feedback The resources may decrease with either the identification of the first device and the identification of the second device, and the feedback resources may be arranged in ascending order.
  • the feedback resource may be a frequency domain resource or a time domain resource.
  • the corresponding time domain resources may be the same or different, and there are many cases for different time domain resources. For example, it can be a different slot, a different mini-slot, or a different symbol; similarly, for any two of the N devices, the corresponding frequency domain resources can be the same or different, and the frequency domain resources are different There are also many situations, such as different subchannels, different PRBs, or different REs.
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, and the third device belongs to One of the N devices, and the distance between the area where the third device is located and the second device is greater than the distance between the area where the first device is located and the second device.
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, and the third device belongs to One of the N devices, and the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device.
  • the maximum distance between the area where the first device is located and the second device is the maximum distance between any point in the area where the first device is located and the second device.
  • the area where the third device is located The maximum distance to the second device is the maximum value of the distance between any point in the area where the third device is located and the second device.
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, and the third device belongs to One of the N devices, and the minimum distance between the area where the third device is located and the second device is greater than the minimum distance between the area where the first device is located and the second device.
  • the minimum distance between the area where the first device is located and the second device is the minimum distance between any point in the area where the first device is located and the second device.
  • the distance between the area where the third device is located and the second device is the minimum value of the distance between any point in the area where the third device is located and the second device.
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, and the third device belongs to One of the N devices, and the signal strength/signal energy between the area where the third device is located and the second device is smaller than the signal strength/signal energy between the area where the first device is located and the second device.
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, and the third device belongs to One of the N devices, and the path loss between the area where the third device is located and the second device is greater than the path loss between the area where the first device is located and the second device.
  • the shape and relative positional relationship between the area where the third device is located and the area where the first device is located can have various shapes, for example, both the area where the third device is located and the area where the first device is located can be ring-shaped, specifically, It may be a ring shape as shown in FIG. 3. Assuming that the first device is UE2, the area where the first device is located is the second area, the third device may be UE1, and the area where the third device is located may be the third area.
  • Step 104 The first device sends the first feedback information to the second device on the feedback resource.
  • Sending the first feedback information by the first device to the second device on the feedback resource may include: based on satisfying a preset condition, the first device sends the first feedback information on the feedback resource to the second device, where the preset condition may be based on actual conditions.
  • the situation is set, which is not limited in the embodiment of the present application.
  • the first device when the first device receives data from the second terminal, various reasons may cause the received data error, so based on the first device receiving data error, the first device sends the first feedback information to the second device on the feedback resource.
  • the first feedback information can indicate that the first device receives data incorrectly, and the first feedback information can be represented by NACK; it is understandable that when the first device receives the data correctly, it can also send the first device to the second device on the feedback resource.
  • Feedback information At this time, the first feedback information indicates that the data received by the first device is correct, and the first feedback information may be represented by ACK.
  • the first device has two feedback methods.
  • the first feedback method is: when the received data is correct, the first device sends the first feedback information ACK, and when the received data is wrong, it sends the first feedback information NACK, where ACK corresponds to NACK
  • the feedback resources of may be the same or different; the second feedback method is that only when the received data is wrong, the first device sends the first feedback information NACK, where the feedback resources only include the feedback resources used to send the first feedback information NACK.
  • the second device will receive the first feedback information on the feedback resource from the first device, the first device is one of the N devices, and the first feedback information is used to indicate that the first device received data error.
  • Step 105 The second device sends data to the first device at the second transmission power according to the first feedback information.
  • the first feedback information indicates that the first device received data error
  • the second device will send data to the first device at the second transmission power to retransmit the data to the first device, and the second transmission power
  • the second transmission power may be equal to the first transmission power.
  • the second device will send data to N devices, that is, all N devices will receive data again; the second transmission power may not be equal to the first transmission power.
  • the second transmission power can be set to be less than or equal to the first transmission power; in addition, the second transmission power is also It can be greater than the first transmission power to ensure that the data transmission is accurately received by the first device.
  • the second device sends the data to be transmitted to the first device at the first transmission power, that is, the initial transmission of the data to be transmitted is completed.
  • the second device may send transmission to the second device again at the second transmission power to realize the retransmission of the data to be transmitted; or, in the case of receiving the first feedback information, for example, receiving NACK, The second device may send the transmission to the second device again with the second transmission power, so as to realize the retransmission of the data to be transmitted.
  • the first transmission power may be determined by the second device according to the preset first target transmission power
  • the second transmission power may be determined by the second device according to the preset first target transmission power; for example, the first target transmission
  • the first target transmission The power and the second target transmission power are the same; for example, the first target transmission power and the second transmission power are different.
  • the modulation and coding scheme (MCS) used for scheduling the data can be set differently, or the number of data transmissions for scheduling transmission can be different.
  • the method further includes:
  • the second device determines the area where the first device is located according to the first correspondence and the feedback resource
  • the second device determines the second transmission power according to the area where the first device is located.
  • the second device can determine the area in which the first device is located according to the first correspondence and the feedback resource, and the second device can determine the corresponding second transmission power to resend data according to the area in which the first device is located, In this way, devices in the area where the first device is located can receive data again.
  • the second transmission power can be reasonably determined , So that the signal coverage of the data sent by the second device exactly covers the area where the first device is located.
  • the second device may first determine the boundary of the area where the first device is located.
  • the boundary may be the outer boundary, or the outer boundary and the inner boundary, and then calculate according to the distance between the edge and the second device and the power calculation formula
  • the transmission power corresponding to the boundary is obtained, and the transmission power is the power that enables the device on the boundary of the area where the first device is located to receive data again, and then the transmission power is determined as the second transmission power; it can also be based on the target transmission power
  • Determining the second transmission power specifically refers to determining the second transmission power according to the target transmission power and the estimated path loss value.
  • the target transmission power is a target transmission power value that enables the first device to receive data again.
  • the target transmission power can be pre-determined.
  • RRC Radio Resource Control
  • the second device sends data to the first device.
  • the first device will send the first feedback information to the second device, and the second device will send the first feedback information according to the first feedback information.
  • the data is retransmitted to the first device, so as to ensure that the first device can correctly receive the data.
  • the first correspondence relationship may include multiple correspondence relationships.
  • the first correspondence relationship may include the correspondence relationship between the feedback resource and the area where the first device is located. This situation will be described in detail below.
  • the feedback resource is a time domain resource
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, or the first correspondence
  • the relationship indicates that the index on the time axis of the time domain resource corresponding to the area where the first device is located is greater than or equal to the index on the time axis of the time domain resource corresponding to the area where the third device is located, and the third device belongs to one of the N devices , And the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device, then the first device sends the first feedback information to the second device It is later than the time when the third device sends the second feedback information to the second device, where the second feedback information indicates that the third device receives data incorrectly.
  • the index of the time domain resource on the time axis includes slot index, and/or symbol index.
  • the first device based on the first device being located in the signal coverage area of the third device, the first device will receive the second feedback information from the third device before sending the first feedback information to the second device.
  • FIG. 4 is a schematic diagram of a signal coverage area of a third device in an embodiment of this application.
  • the target area includes three ring-shaped areas, namely the first area, the second area, and the third area. It is assumed that UE1 in the third area is the third device, and UE2 in the second area is the first area.
  • the time domain resources corresponding to the third area are longer than the time domain resources corresponding to the second area.
  • the time when UE1 sends the second feedback information is earlier than the time when UE2 sends the first feedback information; in the process of sending the second feedback information from UE1 to UE0, in order for the second feedback information to reach UE0, the signal of UE1
  • the coverage area will cover UE0.
  • Figure 4 shows an example of the signal coverage area of UE1, that is, it just covers UE0; and since UE2 is located between UE0 and UE1, UE2 is located within the signal coverage area of UE1, therefore, UE2 can receive the second feedback message sent by UE1.
  • UE3 and UE2 belong to the same second area, UE3 cannot receive the second feedback message sent by UE1 because UE3 is not within the signal coverage area of UE1.
  • the second device after receiving the first feedback information, the second device will re-send data to the first device at the first transmission power. Similarly, after the second device receives the second feedback information from the third device, , It will also re-send data to the third device with the third transmission power; because the maximum distance between the area where the third device is located and the second device is greater than the maximum distance between the area where the first device is located and the second device, Therefore, in the process of re-sending data to the third device at the third transmission power, even if the first device does not send the first feedback information, the first device can still receive the data.
  • the third transmission power may be greater than or equal to the first transmission power, or may be less than the first transmission power.
  • the signal strength of the second feedback information received from the third device is less than or equal to the preset first signal strength, indicating that the signal strength of the second feedback information is poor, so the second device may not receive the second feedback Information; based on the second device not receiving the second feedback information, the second device will not re-send the data to the third device, so the first device will not receive it while the second device is re-sending data to the third device In this case, the first device needs to send the first feedback information to the second device.
  • sending the first feedback information to the second device by the first device on the feedback resource includes: A device receives data incorrectly, and the signal strength of the second feedback information received from the third device is less than or equal to the preset first signal strength, and the first device sends the first feedback information to the second device.
  • the first device since the second device may not receive the second feedback information, the first device sends the first feedback information to the second device to ensure that the data from the second device can be received again.
  • the first device sends the first feedback information to the second device, which only ensures that the first device can receive the data again, and the signal strength of the second feedback information is less than or equal to the preset value.
  • the first signal strength so the third device still cannot receive the data from the second device again. Therefore, in order for both the first device and the third device to receive the data from the second device again, it is based on the error that the first device receives the data , And the signal strength of the second feedback information received from the third device is less than or equal to the preset first signal strength, the first device may not send the first feedback information to the second device, but directly send the second feedback information to the second device. Feedback.
  • the method further includes: a data transmission error based on the first device and the second feedback information from the third device is received. If the signal strength is greater than or equal to the preset first signal strength, the first device does not send the first feedback information to the second device.
  • the first device does not need to additionally send the first feedback information, and can also receive the data re-sent by the second device.
  • the application scenario of the above embodiment is that both the first device and the third device fail to receive data.
  • the first device receives the data correctly, but the third device fails to receive the data. Be explained.
  • the first device Since the first device receives the data correctly, the first device does not need to send the first feedback information to the second device, but the third device fails to receive the data, so the third device needs to send the second feedback information to the second device. If the signal strength of the second feedback information received by a device from the third device is less than or equal to the preset first signal strength, the second device may not receive the second feedback information. Therefore, in order to ensure that the second device can receive the first signal strength 2. Feedback information.
  • the method further includes: based on the signal strength of the first device receiving the data correctly and receiving the second feedback information from the third device If the signal strength is less than or equal to the preset first signal strength, the first device sends the second feedback information to the second device.
  • the first device sending the second feedback information to the second device can be understood as the first device forwarding the second feedback information to the second device, or it can be understood as the first device generating the second feedback information and sending the second feedback information.
  • the second feedback information is used to indicate that the third device fails to receive data, and the second feedback information may be expressed by NACK. It is understandable that, based on the success of receiving the data by the third device, the second feedback information may also indicate that the third device successfully receives the data. In this case, the second feedback information may be ACK.
  • the feedback resource used when the second feedback information is NACK and the resource used when the second feedback information is ACK may be the same or different.
  • the first device forwards the second feedback information whose signal strength is less than or equal to the preset first signal strength to the second device, thereby ensuring that the second device can retransmit data to the third device.
  • the transmission power used by the first device to send the second feedback information can be determined according to actual needs, as long as it is ensured that the second device can receive the second feedback information.
  • the transmission power used by the first device to send the second feedback information may be the same as the transmission power used by the third device to send the second feedback information, or may be different from the transmission power used by the third device to send the second feedback information.
  • the preset first signal strength and the preset second signal strength in each of the foregoing embodiments may be the same or different.
  • the preset first signal strength and the preset second signal strength can be any of the preset RSRP, RSRQ, RSSI, or the signal to interference and noise ratio (Signal To Interference and Noise Ratio, SINR).
  • SINR Signal To Interference and Noise Ratio
  • the preset signal strength is pre-configured or configured by the network device through signaling.
  • any signaling can be at least one of RRC signaling, MAC signaling or physical layer signaling.
  • the method for transmitting data is introduced above, and the device for transmitting data is introduced below.
  • FIG. 5 is a schematic diagram of an embodiment of a device for transmitting data in an embodiment of the present application; as shown in FIG. 5, an embodiment of the present application provides an embodiment of a device for transmitting data, including:
  • the receiving unit 201 is configured to receive data from the second device
  • the processing unit 202 is configured to obtain the first correspondence relationship
  • the processing unit 202 is further configured to determine the feedback resource according to the first correspondence relationship
  • the sending unit 203 is configured to send first feedback information to the second device on the feedback resource based on satisfying a preset condition, where the first feedback information indicates that the first device receives data incorrectly;
  • the first correspondence relationship includes the correspondence relationship between the feedback resource and the area where the first device is located, the correspondence relationship between the feedback resource and the identity of the first device, or the correspondence relationship between the feedback resource and the identity of the second device.
  • the apparatus for transmitting data may be one of N devices that receives data from the second device.
  • the first feedback information indicates that the first device receives data incorrectly.
  • the first feedback information indicates that the first device receives the data correctly.
  • the sending unit is configured to send the first feedback information to the second device by the first device on the feedback resource based on satisfying a preset condition.
  • the feedback resource is a frequency domain resource or a time domain resource.
  • the feedback resource is a time domain resource
  • the first correspondence indicates that the time domain resource corresponding to the area where the first device is located is later on the time axis than the time domain resource corresponding to the area where the third device is located, the third device belongs to one of the N devices, and the third device is located The maximum distance between the area and the second device is greater than the maximum distance between the area where the first device is located and the second device.
  • the sending unit 203 is configured to:
  • the first feedback information is sent to the second device.
  • the sending unit 203 is configured to:
  • the second feedback information is sent to the second device.
  • the sending unit 203 is configured to:
  • the first feedback information is not sent to the second device.
  • FIG. 6 is a schematic diagram of another embodiment of the device for transmitting data in the embodiment of the present application; as shown in FIG. 6, the embodiment of the present application provides another embodiment of the device for transmitting data, including:
  • the sending unit 301 is configured to send data to the first device at the first transmission power
  • the receiving unit 302 is configured to receive first feedback information on the feedback resource from the first device, the feedback resource is determined by the first device according to a first correspondence, where the first correspondence includes the feedback resource and the area where the first device is located The corresponding relationship between the feedback resource and the identifier of the first device, or the corresponding relationship between the feedback resource and the identifier of the second device.
  • the sending unit 301 is configured to send data to N devices including the first device at a first transmission power, and N is a positive integer.
  • the first feedback information is used to indicate that the first device receives data incorrectly;
  • the sending unit 301 is further configured to send data to the first device at the second transmission power according to the first feedback information.
  • the second transmission power is the same as the first transmission power.
  • the second transmission power is different from the first transmission power.
  • the first correspondence includes a correspondence between a feedback resource and an area where the first device is located;
  • the data transmission device further includes a processing unit 303, and the processing unit 303 is configured to:
  • the second transmission power is determined according to the area where the first device is located.
  • the feedback resource is a frequency domain resource or a time domain resource.
  • an embodiment of the data transmission device in the embodiment of the present application may include one or more processors 701, a memory 702, and a communication interface 703.
  • the memory 702 may be short-term storage or persistent storage. Further, the processor 701 may be configured to communicate with the memory 702, and execute a series of instruction operations in the memory 702 on a device for transmitting data.
  • the processor 701 may perform operations performed by the data transmission apparatus in the foregoing embodiment shown in FIG. 5, and details are not described herein again.
  • the specific functional module division in the processor 701 may be similar to the functional module division of the sending unit, receiving unit, processing unit and other modules described in FIG. 5, and will not be repeated here.
  • an embodiment of the data transmission device in the embodiment of the present application may include one or more processors 801, a memory 802, and a communication interface 803.
  • the memory 802 may be short-term storage or persistent storage. Furthermore, the processor 801 may be configured to communicate with the memory 802, and execute a series of instruction operations in the memory 802 on a device for transmitting data.
  • the processor 801 may perform operations performed by the data transmission device in the foregoing embodiment shown in FIG. 6, and details are not described herein again.
  • the specific functional module division in the processor 801 may be similar to the functional module division of the sending unit, the receiving unit, the processing unit and other modules described in FIG. 6, and will not be repeated here.
  • the embodiments of the present application also provide a chip or chip system.
  • the chip or chip system includes at least one processor and a communication interface.
  • the communication interface and the at least one processor are interconnected by wires, and the at least one processor is used to run computer programs or instructions to The operations performed by the data transmission device in the foregoing embodiment shown in FIG. 5 or the operations performed by the data transmission device in the embodiment shown in FIG. 6 are performed, and details are not repeated here.
  • the communication interface in the chip can be an input/output interface, a pin, or a circuit.
  • the embodiment of the present application also provides a first implementation of the chip or the chip system.
  • the chip or the chip system described above in the present application further includes at least one memory, and the at least one memory stores instructions.
  • the memory may be a storage unit inside the chip, for example, a register, a cache, etc., or a storage unit of the chip (for example, a read-only memory, a random access memory, etc.).
  • the embodiment of the present application also provides a computer storage medium for storing computer software instructions used for the above-mentioned data transmission device, which includes a program for executing the program designed for the data transmission device.
  • the data transmission device may be the data transmission device described in the foregoing FIG. 5 or FIG. 6.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes computer software instructions that can be loaded by a processor to implement the flow of the method in FIG. 2 above.

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Abstract

本申请实施例提供了一种传输数据的方法和设备，用于设备间的数据传输；该方法包括：第一设备接收来自第二设备的数据；第一设备获取第一对应关系，该第一对应关系可以包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系，然后第一设备根据第一对应关系确定反馈资源；最后第一设备在反馈资源上向第二设备发送第一反馈信息，使得第二设备得到第一设备接收数据的情况。

Description

一种传输数据的方法和设备 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种传输数据的方法和设备。
背景技术
随着通信技术的发展，设备之间可以通过侧行链路(Side Link，SL)直接进行数据的传输，即一个设备可以通过侧行链路向周围区域内的其他设备发送数据。
为此，需要一种传输数据的方案，用于设备间的数据传输。
发明内容
本申请实施例提供了一种传输数据的方法和设备，用于设备间的数据传输。
本申请实施例的第一方面提供了一种传输数据的方法，包括：
第一设备接收来自第二设备的数据；
第一设备获取第一对应关系，该第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系；
第一设备然后根据第一对应关系确定反馈资源；
第一设备在反馈资源上向第二设备发送第一反馈信息。
第一设备根据第一对应关系确定反馈资源，然后根据该反馈资源发送第一反馈信息，使得第二设备及时了解到第一设备接收数据的情况。
基于第一方面，本申请实施例提供了第一方面的第一种实施方式，第一设备为接收来自第二设备的数据的一组设备中的一个。
基于第一方面，或第一方面的第一种实施方式，本申请实施例提供了第一方面的第二种实施方式，第一反馈信息指示第一设备接收数据错误。
第一反馈信息使得第二设备及时确定第一设备接收数据错误，然后对第一设备进行数据重传。
基于第一方面，或第一方面的第一种实施方式，或第一方面的第二种实施方式，本申请实施例提供了第一方面的第三种实施方式，
第一反馈信息指示第一设备接收数据正确。
基于第一方面，或第一方面的第一种实施方式，或第一方面的第二种实施方式，或第一方面的第三种实施方式，本申请实施例提供了第一方面的第四种实施方式，
第一设备在反馈资源上向第二设备发送第一反馈信息包括：
基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息。
在该实施方式，当满足预设条件时，第一设备向第二设备发送第一反馈信息。
基于第一方面的第四种实施方式，本申请实施例提供了第一方面的第五种实施方式，反馈资源为频域资源或时域资源。
该实施方式中，设备不同，对应的频域资源可以不同，对应的时域资源也可以不同。
基于第一方面的第五种实施方式，本申请实施例提供了第一方面的第六种实施方式， 反馈资源为时域资源；
第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大。
在该实施方式中，第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大，所以第三设备所处区域对应的时域资源比第一设备所处区域对应的时域资源在时间轴上越早，所以第三设备发送反馈信息的时间第一设备发送第一反馈信息的时间早。
基于第一方面的第六种实施方式，本申请实施例提供了第一方面的第七种实施方式，基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息包括：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第一设备向第二设备发送第一反馈信息。
第一设备接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，表示第二设备可能接收不到该第二反馈信息，因此第二设备可能不会对第三设备进行数据重传，因此，即使第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大，第一设备也不能在第二设备对第三设备进行数据重传的过程中接收到数据，这种情况下，基于第一设备接收数据错误，第一设备会向第二设备发送第一反馈信息。
基于第一方面的第六种实施方式，本申请实施例提供了第一方面的第八种实施方式，方法还包括：
基于第一设备接收数据正确，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第一设备向第二设备发送第二反馈信息。
第一设备接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，表示第二设备可能接收不到该第二反馈信息，因此第二设备可能不会对第三设备进行数据重传，为了使得第二设备能够接收到该第二反馈信息，以对第三设备进行数据重传，所以第一设备向第二设备发送该第二反馈信息。
基于第一方面的第六种实施方式，本申请实施例提供了第一方面的第九种实施方式，方法还包括：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，第一设备不向第二设备发送第一反馈信息。
第一设备接收到来自第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，表示第二设备会接收到该第二反馈信息，因此第二设备会对第三设备进行数据重传，又由于第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大，所以第一设备在第二设备对第三设备进行数据重传的过程中能够接收到数据，因此基于第一设备接收数据错误，第一设备也不需向第二设备发送第一反馈信息。
本申请实施例第二方面提供了一种传输数据的方法，包括：
第二设备先以第一传输功率向第一设备发送数据，该第一传输功率保证第一设备在第 二设备的覆盖范围内；
第二设备然后接收来自第一设备在反馈资源上的第一反馈信息，反馈资源由第一设备根据第一对应关系确定，其中，第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系；
第二设备向第一设备发送数据，基于第一设备接收数据后发送的第一反馈信息，第二设备可以及时了解到第一设备接收数据的情况。
基于第二方面，本申请实施例提供了第二方面的第一种实施方式，第二设备以第一传输功率向第一设备发送数据包括：
第二设备以第一传输功率向包括第一设备在内的N个设备发送数据，N为正整数。
基于第二方面的第一种实施方式，本申请实施例提供了第二方面的第二种实施方式，第一反馈信息用于指示第一设备接收数据错误；
在第二设备接收来自第一设备在反馈资源上的第一反馈信息之后，方法还包括：
第二设备根据第一反馈信息以第二传输功率向第一设备发送数据。
第二设备以第二传输功率向第一设备发送数据，实现对第一设备的数据重传。
基于第二方面的第二种实施方式，本申请实施例提供了第二方面的第三种实施方式，第二传输功率与第一传输功率相同。
基于第二方面的第二种实施方式，本申请实施例提供了第二方面的第四种实施方式，第二传输功率与第一传输功率不同。
基于第二方面的第二种实施方式，本申请实施例提供了第二方面的第五种实施方式，第一对应关系包括反馈资源与第一设备所处区域的对应关系；
在第二设备接收来自第一设备在反馈资源上的第一反馈信息之后，在第二设备根据第一反馈信息以第二传输功率向第一设备发送数据之前，方法还包括：
第二设备根据第一对应关系和反馈资源确定第一设备所处的区域；
第二设备根据第一设备所处的区域确定第二传输功率，第二传输功率可以与第一传输功率相同，也可以与第一传输功率不同。
当第二传输功率与第一传输功率不同时，能够避免N个设备中的部分接收数据正确的设备重复接收到数据。
基于第二方面，或第二方面的第一种实施方式，或第二方面的第二种实施方式，或第二方面的第三种实施方式，或第二方面的第四种实施方式，或第二方面的第五种实施方式，本申请实施例提供了第一方面的第二种实施方式，反馈资源为频域资源或时域资源。
本申请实施例第三方面提供一种传输数据的装置，包括：
接收单元，用于接收来自第二设备的数据；
处理单元，用于获取第一对应关系；
处理单元，还用于根据第一对应关系确定反馈资源；
发送单元，用于在反馈资源上向第二设备发送第一反馈信息；
其中，第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系。
基于第三方面，本申请实施例提供了第三方面的第一种实施方式，传输数据的装置为接收来自第二设备的数据的N个设备中的一个设备。
基于第三方面的第一种实施方式，本申请实施例提供了第三方面的第二种实施方式，第一反馈信息指示第一设备接收数据错误。
基于第三方面的第一种实施方式，本申请实施例提供了第三方面的第三种实施方式，
第一反馈信息指示第一设备接收数据正确。
基于第三方面的第二种实施方式，本申请实施例提供了第三方面的第四种实施方式，
发送单元，用于基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息。基于第三方面的第四种实施方式，本申请实施例提供了第三方面的第五种实施方式，反馈资源为频域资源或时域资源。
基于第三方面的第五种实施方式，本申请实施例提供了第三方面的第六种实施方式，反馈资源为时域资源；
第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大。
基于第三方面的第六种实施方式，本申请实施例提供了第三方面的第七种实施方式，发送单元用于：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，向第二设备发送第一反馈信息。
基于第三方面的第六种实施方式，本申请实施例提供了第三方面的第八种实施方式，发送单元用于：
基于第一设备接收数据正确，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，向第二设备发送第二反馈信息。
基于第三方面的第六种实施方式，本申请实施例提供了第三方面的第九种实施方式，发送单元用于：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，不向第二设备发送第一反馈信息。
本申请实施例第四方面提供了一种传输数据的装置，包括：
发送单元，用于以第一传输功率向第一设备发送数据；
接收单元，用于接收来自第一设备在反馈资源上的第一反馈信息，反馈资源由第一设备根据第一对应关系确定，其中，第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系。
基于第四方面，本申请实施例提供了第四方面的第一种实施方式，发送单元，用于以第一传输功率向包括第一设备在内的N个设备发送数据，N为正整数。
基于第四方面的第一种实施方式，本申请实施例提供了第四方面的第二种实施方式，第一反馈信息用于指示第一设备接收数据错误；
发送单元，还用于根据第一反馈信息以第二传输功率向第一设备发送数据。
基于第四方面的第二种实施方式，本申请实施例提供了第四方面的第三种实施方式，第二传输功率与第一传输功率相同。
基于第四方面的第二种实施方式，本申请实施例提供了第四方面的第四种实施方式，第二传输功率与第一传输功率不同。
基于第四方面的第二种实施方式，本申请实施例提供了第四方面的第五种实施方式，第一对应关系包括反馈资源与第一设备所处区域的对应关系；
传输数据的装置还包括处理单元，处理单元用于：
根据第一对应关系和反馈资源确定第一设备所处的区域；
根据第一设备所处的区域确定第二传输功率。
基于第四方面，或第四方面的第一种实施方式，或第四方面的第二种实施方式，或第四方面的第三种实施方式，或第四方面的第四种实施方式，或第四方面的第五种实施方式，反馈资源为频域资源或时域资源。
本申请实施例第五方面提供一种传输数据的设备，包括：至少一个处理器和存储器，存储器存储有可在处理器上运行的计算机执行指令，当所述计算机执行指令被所述处理器执行时，所述终端设备执行如上述第一方面或第二方面中任意一种实施方式所述的传输数据的方法。
本申请实施例第六方面提供一种芯片或者芯片系统，该芯片或者芯片系统包括至少一个处理器和通信接口，通信接口和至少一个处理器通过线路互联，至少一个处理器用于运行计算机程序或指令，以执行如上述第一方面或第二方面中任意一种实施方式所述的传输数据的方法。
本申请实施例第七方面提供了一种计算机存储介质，该计算机存储介质用于储存为上述终端设备所用的计算机软件指令，其包括用于执行为所述传输数据的设备所设计的程序；
该传输数据的设备可以如前述第一方面或前述第二方面所描述的传输数据的设备。
本申请实施例第八方面提供了一种计算机程序产品，该计算机程序产品包括计算机软件指令，该计算机软件指令可通过处理器进行加载来实现如上述第一方面或第二方面中任意一项所述的传输数据的方法。
本申请实施例第九方面提供了一种传输数据的方法，包括：第二设备以第一传输功率向第一设备发送待传输数据，第一传输功率由第二设备根据预设的第一目标传输功率确定；
第二设备以第二传输功率向第一设备发送待传输数据，第二传输功率由第二设备根据预设的第二目标传输功率确定。
基于第九方面，本申请实施例提供了第一方面的第一种实施方式，第一目标传输功率和第二目标传输功率相同。
基于第九方面，本申请实施例提供了第一方面的第二种实施方式，第一目标传输功率和第二传输功率不同。
本申请实施例提供的技术方案中，第一设备接收来自第二设备的数据，其中第一设备为接收来自第二设备的数据的N个设备中的一个；第一设备获取第一对应关系，该第一对 应关系可以包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系，然后第一设备根据第一对应关系确定反馈资源；基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息，第一反馈信息指示第一设备接收数据错误，这样，第二设备可以根据第一反馈信息对第一设备进行数据重传。
附图说明
图1为本申请实施例中传输数据的方法的应用场景示意图；
图2为本申请实施例中传输数据的方法的一个实施例示意图；
图3为本申请实施例中目标区域的区域划分的实施例示意图；
图4为本申请实施例中第三设备的信号覆盖范围示意图；
图5为本申请实施例中传输数据的装置的一个实施例示意图；
图6为本申请实施例中传输数据的装置的另一个实施例示意图；
图7为本申请实施例中传输数据的设备的一个实施例示意图；
图8为本申请实施例中传输数据的设备的另一个实施例示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行详细描述。
请参阅图1，本申请实施例中传输方法的应用场景示意图。如图1所示，在该场景下，基于侧行链路(Side Link，SL)，设备之间可以直接传输数据，其中该设备可以是终端设备，也可以是网络设备。本申请实施例也可以应用于综合回传接入链路，其中任何设备可以是网络设备，网络设备之间可以直接传输数据。
终端设备(terminal device)，也可以称为用户设备(user equipment，UE)，是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
为便于说明，图1中用UE代替终端设备，对设备间传输具的过程进行说明。在图1中，UE0可以向目标区域中的UE1、UE2、UE3和UE4传输数据，相应地，UE1、UE2、UE3和UE4会向UE0发送反馈消息，该反馈消息指示其接收数据正确或接收数据错误；以UE2接收数据错误为例，UE0会向UE2重新发送数据，为了该数据传输的过程，本申请实施例提供了一种传输数据的方法，用于设备之间的数据传输，并且还能够对接收数据错误的设备进行数据重传。
为了更好地理解本申请实施例提供的传输数据的方法，下面对其进行具体介绍。请参阅图2，本申请实施例中传输数据的方法的一个实施例示意图。如图2所示，本申请实施例提供了一种传输数据的方法的一个实施例，包括：
步骤101，第二设备以第一传输功率向第一设备发送数据。
示例性地，第二设备可以以第一传输功率向包括第一设备在内的N个设备发送数据，N为正整数。
可以理解的是，第二设备以第一传输功率发送数据，该第一传输功率则对应一个信号覆盖范围，在该信号覆盖范围内的所有设备都能接收到该数据，本申请实施例将该覆盖范围称为目标区域；其中，第一传输功率可以根据实际需要进行选择，只要使得目标区域能够覆盖N个设备即可，其中发送数据的方式可以为广播的方式，也可以为组播的方式，还可以为单播的方式。
以图1为例，第二设备为UE0，N个设备包括UE1、UE2、UE3和UE4，第一传输功率对应图1中的目标区域覆盖了N个设备，因此UE0能够向UE1、UE2、UE3和UE4发送数据。
相应地，第一设备接收来自第二设备的数据，其中第一设备可以为接收来自第二设备的数据的N个设备中的一个，以图1为例，则第一设备可以为UE1、UE2、UE3和UE4中的一个。
步骤102，第一设备获取第一对应关系。
需要说明的是，第一设备获取第一对应关系的方式有多种，本申请实施例对此不做限定；例如，第一对应关系可以预置在第一设备中，第一设备通过读取的方式获取到第一对应关系；再例如，第一设备也可以从第二设备处获取到该第一对应关系。
第一对应关系可以包括多种内容，具体地，第一对应关系包括但不限于反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系。
当第一对应关系包括反馈资源与第一设备所处区域的对应关系时，以图1所示的目标区域为例，该目标区域可以被具体划分为多个区域，每个区域可以用第一标识进行标记，该第一标识可以为区域标识(zone ID)、子区域标识(subzone ID)、范围标识(range ID)或子范围标识(subrange ID)。
本申请实施例中，可以通过多种方法将目标区域划分为多个区域，具体地，可以基于位置信息，信号强度/信号能量或路损信息中任何一者或多者将目标区域划分为多个区域。其中信号强度可以用参考信号接收功率(Reference Signal Received Power，RSRP),参考信号接收质量(Reference Signal Received Quality，RSRQ)或接收信号强度指示(Received Signal Strength Indicator，RSSI)中一种或多种表示，相应地，当用第一标识进行区域标记时，该第一标识可以根据位置信息，信号强度/信号能量或者路损信息中任何一者或多者确定的。
下面对基于位置信息将目标区域划分为多个区域的过程进行介绍。例如，可以将图1所示的目标区域划分为如图3所示的多个环状区域，图3为本申请实施例中目标区域的区域划分的实施例示意图，在图3中，目标区域包括第一区域、第二区域和第三区域，UE1 位于第三区域内，UE2和UE3位于第二区域内，UE4位于第一区域内。以第一设备为UE2为例，则第一对应关系包括反馈资源与第二区域的对应关系。另外，本申请实施例对步骤102和步骤101的执行顺序不做限定。
步骤103，第一设备根据第一对应关系确定反馈资源。
当第一对应关系包括反馈资源与第一设备所处区域的对应关系时，第一设备则可以根据所处区域和所述第一对应关系确定反馈资源；当第一对应关系包括反馈资源与第一设备的标识的对应关系时，第一设备则可以根据第一设备的标识和第一对应关系确定反馈资源；当第一对应关系包括反馈资源与第二设备的标识的对应关系时，第一设备则可以根据第二设备的标识和第一对应关系确定反馈资源。
具体来说，在频域，反馈资源可以根据子信道(subchannel)或物理资源块(Physicalresource Block,PRB)或资源元素(Resource Element,RE)中任何一者或多者的第二标识从小到大的顺序在频域资源上依次升序排列；在时域,一个时间点上的反馈资源可以对应多个侧行链路物理共享信道(Physical Sidelink Shared Channel,PSSCH)，因此这多个PSSCH对应的反馈资源可以根据所述PSSCH所处的第三标识从小到大的顺序依次在该时间点的频域上从小到大依次升序排列。其中,第三标识包括slot index,或者symbol index,或者slot和symbol的index的联合指示。
本申请实施例中所提到的标识(包括第一标识，第二标识，或第三标识)可以用标识号ID表示，也可以用索引(index)表示。
示例性地，当第一对应关系包括反馈资源与第一设备的标识的对应关系时，假设第一设备的标识用数字表示，则随着第一设备的标识的增大，反馈资源可以成升序排列。
示例性地，当第一对应关系包括反馈资源与第二设备的标识的对应关系时，假设第二设备的标识也用数字表示，则随着第二设备的标识的增大，反馈资源可以成升序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识以及第二设备的标识两者的对应关系时，假设第一设备的标识和第二设备的标识均用数字表示，则反馈资源可以随着第一设备的标识以及第二设备的标识两者中任意一者的增大成升序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识的对应关系时，假设第一设备的标识用数字表示，则随着第一设备的标识的减小，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第二设备的标识的对应关系时，假设第二设备的标识也用数字表示，则随着第二设备的标识的减小，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识以及第二设备的标识两者的对应关系时，假设第一设备的标识和第二设备的标识均用数字表示，则反馈资源可以随着第一设备的标识以及第二设备的标识两者中任意一者的减小，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识的对应关系时，假设第一设备的标识用数字表示，则随着第一设备的标识的增大，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第二设备的标识的对应关系时，假设第二设备的标识也用数字表示，则随着第二设备的标识的增大，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识以及第二设备的标识两者 的对应关系时，假设第一设备的标识和第二设备的标识均用数字表示，则反馈资源可以随着第一设备的标识以及第二设备的标识两者中任意一者的增大，反馈资源可以成降序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识的对应关系时，假设第一设备的标识用数字表示，则随着第一设备的标识的减小，反馈资源可以成升序排列。
示例性地，当第一对应关系包括反馈资源与第二设备的标识的对应关系时，假设第二设备的标识也用数字表示，则随着第二设备的标识的减小，反馈资源可以成升序排列。
示例性地，当第一对应关系包括反馈资源与第一设备的标识以及第二设备的标识两者的对应关系时，假设第一设备的标识和第二设备的标识均用数字表示，则反馈资源可以随着第一设备的标识以及第二设备的标识两者中任意一者的减小，反馈资源可以成升序排列。
示例性地，反馈资源可以为频域资源或时域资源，相应地，N个设备中的任意两个设备，对应的时域资源可以相同，也可以不同，其中时域资源不同有多种情况，例如可以是slot不同，可以是mini-slot不同，也可以是符号不同；同样地，N个设备中的任意两个设备，对应的频域资源可以相同，也可以不同，其中频域资源不同也有多种情况，例如可以是subchannel不同，可以是PRB不同，也可以是RE不同。
示例性地，基于反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的距离比第一设备所处区域与第二设备之间的距离大。
示例性地，基于反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大。
需要说明的是，第一设备所处区域与第二设备之间的最大距离为第一设备所处区域中任意一点与第二设备之间距离的最大值，同样地，第三设备所处区域与第二设备之间的最大距离为第三设备所处区域中任意一点与第二设备之间距离的最大值。
示例性地，基于反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最小距离比第一设备所处区域与第二设备之间的最小距离大。
第一设备所处区域与第二设备之间的最小距离为第一设备所处区域中任意一点与第二设备之间距离的最小值，同样地，第三设备所处区域与第二设备之间的最小距离为第三设备所处区域中任意一点与第二设备之间距离的最小值。
示例性地，基于反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的信号强度/信号能量比第一设备所处区域与第二设备之间的信号强度/信号能量小。
示例性地，基于反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时 域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的路损比第一设备所处区域与第二设备之间的路损大。
基于此，第三设备所处区域与第一设备所处区域的形状以及相对位置关系可以有多种，例如第三设备所处区域与第一设备所处区域均可以为环状，具体地，可以为图3所示的环状。假设第一设备为UE2，第一设备所处区域则为第二区域，第三设备可以为UE1，第三设备所处区域可以为第三区域。
步骤104，第一设备在反馈资源上向第二设备发送第一反馈信息。
第一设备在反馈资源上向第二设备发送第一反馈信息可以包括：基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息，其中，预设条件可以根据实际情况进行设定，本申请实施例对此不做限定。
例如，在第一设备接收来自第二终端的数据时，多种原因可能导致接收数据错误，所以可以基于第一设备接收数据错误，第一设备在反馈资源上向第二设备发送第一反馈信息，第一反馈信息可以指示第一设备接收数据错误，第一反馈信息可以用NACK表示；可以理解的是，当第一设备接收数据正确时，也可以在反馈资源上向第二设备发送第一反馈信息，此时，该第一反馈信息指示第一设备接收数据正确，第一反馈信息可以用ACK表示。第一设备有两种反馈方式，第一种反馈方式为：当接收数据正确，第一设备发送第一反馈信息ACK，并且，当接收数据错误，发送第一反馈信息NACK，其中ACK与NACK对应的反馈资源可以相同或者不同；第二种反馈方式为只当接收数据错误，第一设备发送第一反馈信息NACK，其中，反馈资源只包括用于发送第一反馈信息NACK的反馈资源。
相应地，第二设备会接收来自第一设备在反馈资源上的第一反馈信息，第一设备为N个设备中的一个，第一反馈信息用于指示第一设备接收数据错误。
步骤105，第二设备根据第一反馈信息以第二传输功率向第一设备发送数据。
基于接收到第一反馈信息，第一反馈信息指示第一设备接收数据错误，第二设备会以第二传输功率向第一设备发送数据，以对第一设备进行数据重传，第二传输功率可以有多种选择，本申请实施例对此不做限定。
例如，第二传输功率可以等于第一传输功率，此时，第二设备会向N个设备发送数据，即N个设备都会再次接收到数据；第二传输功率也可以不等于第一传输功率，具体地，由于N个设备中存在接收数据正确的设备，因此为了避免接收数据正确的部分设备重复接收到数据，可以设置第二传输功率小于或等于第一传输功率；此外，第二传输功率还可以大于第一传输功率，以保证数据传输被第一设备准确接收。
需要说明的是，第二设备以第一传输功率向第一设备发送待传输数据，即完成了待传输数据的初传，在未接收到第一反馈信息的情况下，例如，在发送待传输数据一段时间后，第二设备可以以第二传输功率向第二设备再次发送传输，以实现待传输数据的重传；或者，在接收到第一反馈信息的情况下，例如，接收到NACK，第二设备可以以第二传输功率向第二设备再次发送传输，以实现待传输数据的重传。其中，第一传输功率可以由第二设备根据预设的第一目标传输功率确定，第二传输功率可以由第二设备根据预设的第一目标传输 功率确定；示例性地，第一目标传输功率和第二目标传输功率相同；示例性地，第一目标传输功率和第二传输功率不同。
当第二传输功率等于第一传输功率时，调度该数据所使用的调制与编码策略(Modulation and Coding Scheme，MCS)可以被不同设置，或者调度传输的数据传输次数可以不同。
基于第二传输功率可以有多种选择，确定第二传输功率的方法也有多种。
示例性地，基于第一对应关系包括反馈资源与第一设备所处区域的对应关系，在第二设备接收来自第一设备在反馈资源上的第一反馈信息之后，在第二设备根据第一反馈信息以第二传输功率向第一设备发送数据之前，方法还包括：
第二设备根据第一对应关系和反馈资源确定第一设备所处的区域；
第二设备根据第一设备所处的区域确定第二传输功率。
在该示例中，第二设备根据第一对应关系和反馈资源可以确定第一设备所处的区域，第二设备便可以根据第一设备所处的区域确定相应的第二传输功率重新发送数据，以使得第一设备所处的区域内的设备能够重新接收到数据。
在第一设备所处的区域内的设备能够重新接收到数据的情况下，为了尽可能地避免第一设备所处的区域外接收数据正确的设备重复接收到数据，可以合理确定第二传输功率，使得第二设备发送数据的信号覆盖范围恰好覆盖到第一设备所处的区域。
具体地，第二设备可以先确定第一设备所处区域的边界，该边界可以是外边界，也可以是外边界和内边界，然后根据边缘与第二设备之间的距离以及功率计算公式计算出该边界对应的传输功率，该传输功率为能使第一设备所处区域的边界上的设备重新接收到数据的功率，然后将该传输功率确定为第二传输功率；还可以根据目标传输功率确定第二传输功率，具体为根据目标传输功率以及估计的路损值确定第二传输功率，该目标传输功率为能使第一设备重新接收到数据的传输功率目标值，该目标传输功率可以预先设置在第二设备中，也可以是第二设备通过无线资源控制(Radio Resource Control，RRC)信令的方式从网络设备接收到该目标传输功率。
在本申请实施例中，第二设备向第一设备发送数据，在接收数据错误的情况下，第一设备会向第二设备发送第一反馈信息，第二设备则会根据该第一反馈信息对第一设备进行数据重传，从而保证第一设备能够正确接收到数据。
基于前述说明可知，第一对应关系可以包括多种对应关系，例如，第一对应关系可以包括反馈资源与第一设备所处区域的对应关系，下面对这种情况进行具体介绍。
示例性地，反馈资源为时域资源，第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，或者，第一对应关系指示第一设备所处区域对应的时域资源在时间轴上的索引大于或等于第三设备所处区域对应的时域资源在时间轴上的索引，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大，则第一设备向第二设备发送第一反馈信息的时间晚于第三设备向第二设备发送第二反馈信息的时间，其中第二反馈信息指示第三设备接收数据错误。其中，时域资源在时间轴上的索引包括slot index, 和/或symbol index。
在该示例中，基于第一设备位于第三设备的信号覆盖范围，则第一设备在向第二设备发送第一反馈信息前，会接收到来自第三设备的第二反馈信息。
以图4为例，图4为本申请实施例中第三设备的信号覆盖范围示意图。如图4所示，目标区域包括三个环状区域，分别为第一区域、第二区域和第三区域，假设第三区域中的UE1为第三设备，第二区域中的UE2为第一设备，由于第三区域与第二设备之间的最大距离比第二区域与第二设备之间的最大距离大，所以第三区域对应的时域资源比第二区域对应的时域资源在时间轴上晚，UE1发送第二反馈信息的时间则比UE2发送的第一反馈信息的时间早；UE1向UE0发送第二反馈信息的过程中，为了使第二反馈信息到达UE0，所以UE1的信号覆盖范围会覆盖到UE0，图4示出了UE1的信号覆盖范围的其中一个示例，即恰好覆盖到UE0；而由于UE2位于UE0和UE1之间，所以UE2位于UE1的信号覆盖范围内，因此，UE2能够接收到UE1发送的第二反馈信息，另外，虽然UE3与UE2同属于第二区域，但由于UE3未处于UE1的信号覆盖范围之内，所以UE3无法接收到UE1发送的第二反馈消息。
基于前述实施例可知，第二设备在接收到第一反馈信息后会以第一传输功率向第一设备重新发送数据，同样地，第二设备在接收到来自第三设备的第二反馈信息后，也会以第三传输功率向第三设备重新发送数据；由于第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大，所以在会以第三传输功率向第三设备重新发送数据的过程中，即使第一设备不发送第一反馈信息，第一设备也能够接收到数据。其中，第三传输功率可以大于或等于第一传输功率，也可以小于第一传输功率。
但基于接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，说明该第二反馈信息的信号强度较差，所以第二设备可能接收不到该第二反馈信息；基于第二设备接收不到第二反馈信息，则第二设备不会向第三设备重新发送数据，所以第一设备也不会在第二设备向第三设备重新发送数据的过程中接收到数据，这种情况下，第一设备则需要向第二设备发送第一反馈信息。
基于上述说明，在本申请实施例提供的一种传输数据的方法的另一个实施例中，基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息包括：基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第一设备向第二设备发送第一反馈信息。
在该实施例中，由于第二设备可能接收不到第二反馈信息，因此第一设备向第二设备发送第一反馈信息，以保证能够重新接收到来自第二设备的数据。
需要说明的是，在该实施例中，第一设备向第二设备发送第一反馈信息，仅保证了第一设备能够重新接收到数据，而由于第二反馈信息的信号强度小于或等于预设第一信号强度，所以第三设备仍不能重新接收到来自第二设备的数据，因此，为了第一设备和第三设备都能够重新接收到来自第二设备的数据，基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第一设备可以不向第二设备发送第一反馈信息，而直接向第二设备发送第二反馈信息。
基于上述说明，在本申请实施例提供的一种传输数据的方法的另一个实施例中，该方法还包括：基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，第一设备不向第二设备发送第一反馈信息。
这样，第一设备不需要额外发送第一反馈信息，也能接收到第二设备重新发送的数据。
可以理解的是，上述实施例的应用场景是第一设备和第三设备均接收数据失败，此外，也可能存在第一设备接收数据正确，但第三设备接收数据失败，下面对该种情况进行说明。
由于第一设备接收数据正确，所以第一设备不需要向第二设备发送第一反馈信息，但第三设备接收数据失败，所以第三设备需要向第二设备发送第二反馈信息，而基于第一设备接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第二设备则可能接收不到第二反馈信息，因此，为了保证第二设备能够接收到第二反馈信息，在本申请实施例提供的传输数据的方法的另一个实施例中，该方法还包括：基于第一设备接收数据正确，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，第一设备向第二设备发送第二反馈信息。
上述实施例中，第一设备向第二设备发送第二反馈信息，可以理解为第一设备向第二设备转发第二反馈信息，也可以理解为第一设备生成第二反馈信息，并发送第二反馈信息。其中，基于第二反馈信息用于表示第三设备接收数据失败，第二反馈信息可以用NACK表示。可以理解的是，基于第三设备接收数据成功，也可以通过第二反馈信息表示第三设备接收数据成功，此时，第二反馈信息可以为ACK。另外，第二反馈信息为NACK时所使用的反馈资源和第二反馈信息为ACK时所使用的资源可以相同，也可以不同。
在本申请实施例中，第一设备将信号强度小于或等于预设第一信号强度的第二反馈信息转发至第二设备，从而可以保证第二设备能够对第三设备进行数据重传。
另外，需要说明的是，在前述各个实施例中，第一设备发送第二反馈信息所采用的传输功率可以根据实际需要进行确定，只要保证第二设备能过接收到第二反馈信息即可，第一设备发送第二反馈信息所采用的传输功率可以与第三设备发送第二反馈信息所采用的传输功率相同，也可以与第三设备发送第二反馈信息所采用的传输功率不同。
上述各个实施例中的预设第一信号强度与预设第二信号强度可以相同，或不同。本申请实施例中，预设第一信号强度与预设第二信号强度均可以为预设的RSRP,RSRQ,RSSI,或信号与干扰加噪声比(Signal To Interference and Noise Ratio，SINR)中任何一项。所述预设信号强度为预先配置或者由网络设备通过信令配置。本发明中，任何信令可以为RRC信令，MAC信令或物理层信令中至少一项。
上面对传输数据的方法进行介绍，下面对传输数据的装置进行介绍。
请参阅图5，本申请实施例中传输数据的装置的一个实施例示意图；如图5所示，本申请实施例提供了一种传输数据的装置的一个实施例，包括：
接收单元201，用于接收来自第二设备的数据；
处理单元202，用于获取第一对应关系；
处理单元202，还用于根据第一对应关系确定反馈资源；
发送单元203，用于基于满足预设条件，在反馈资源上向第二设备发送第一反馈信息， 第一反馈信息指示第一设备接收数据错误；
其中，第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，传输数据的装置可以为接收来自第二设备的数据的N个设备中的一个设备。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，第一反馈信息指示第一设备接收数据错误。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，第一反馈信息指示第一设备接收数据正确。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，发送单元，用于基于满足预设条件，第一设备在反馈资源上向第二设备发送第一反馈信息。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，反馈资源为频域资源或时域资源。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，反馈资源为时域资源；
第一对应关系指示第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，第三设备属于N个设备中的一个，且第三设备所处区域与第二设备之间的最大距离比第一设备所处区域与第二设备之间的最大距离大。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，发送单元203用于：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，向第二设备发送第一反馈信息。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，发送单元203用于：
基于第一设备接收数据正确，且接收到来自第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，向第二设备发送第二反馈信息。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，发送单元203用于：
基于第一设备接收数据错误，且接收到来自第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，不向第二设备发送第一反馈信息。
请参阅图6，本申请实施例中传输数据的装置的另一个实施例示意图；如图6所示，本申请实施例提供了一种传输数据的装置的另一个实施例，包括：
发送单元301，用于以第一传输功率向第一设备发送数据；
接收单元302，用于接收来自第一设备在反馈资源上的第一反馈信息，反馈资源由第一设备根据第一对应关系确定，其中，第一对应关系包括反馈资源与第一设备所处区域的对应关系、反馈资源与第一设备的标识的对应关系或反馈资源与第二设备的标识的对应关系。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，发送单元301，用于以第一传输功率向包括第一设备在内的N个设备发送数据，N为正整数。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，第一反馈信息用于指示第一设备接收数据错误；
发送单元301，还用于根据第一反馈信息以第二传输功率向第一设备发送数据。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，第二传输功率与第一传输功率相同。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，第二传输功率与第一传输功率不同。在本申请实施例提供的一种传输数据的装置的另一个实施例中，第一对应关系包括反馈资源与第一设备所处区域的对应关系；
传输数据的装置还包括处理单元303，处理单元303用于：
根据第一对应关系和反馈资源确定第一设备所处的区域；
根据第一设备所处的区域确定第二传输功率。
在本申请实施例提供的一种传输数据的装置的另一个实施例中，反馈资源为频域资源或时域资源。
请参阅图7，本申请实施例中传输数据的设备一个实施例可以包括一个或一个以上处理器701，存储器702，通信接口703。
存储器702可以是短暂存储或持久存储。更进一步地，处理器701可以配置为与存储器702通信，在传输数据的装置上执行存储器702中的一系列指令操作。
本实施例中，处理器701可以执行前述图5所示实施例中传输数据的装置所执行的操作，具体此处不再赘述。
本实施例中，处理器701中的具体功能模块划分可以与前述图5中所描述的发送单元、接收单元、处理单元等模块的功能模块划分方式类似，此处不再赘述。
请参阅图8，本申请实施例中传输数据的设备一个实施例可以包括一个或一个以上处理器801，存储器802，通信接口803。
存储器802可以是短暂存储或持久存储。更进一步地，处理器801可以配置为与存储器802通信，在传输数据的装置上执行存储器802中的一系列指令操作。
本实施例中，处理器801可以执行前述图6所示实施例中传输数据的装置所执行的操作，具体此处不再赘述。
本实施例中，处理器801中的具体功能模块划分可以与前述图6中所描述的发送单元、接收单元、处理单元等模块的功能模块划分方式类似，此处不再赘述。
本申请实施例还提供一种芯片或者芯片系统，该芯片或者芯片系统包括至少一个处理器和通信接口，通信接口和至少一个处理器通过线路互联，至少一个处理器用于运行计算机程序或指令，以执行前述图5所示实施例中传输数据的装置所执行的操作或图6所示实施例中传输数据的装置所执行的操作，具体此处不再赘述。
其中，芯片中的通信接口可以为输入/输出接口、管脚或电路等。
本申请实施例还提供了芯片或者芯片系统的第一种实施方式，本申请中上述描述的芯片或者芯片系统还包括至少一个存储器，该至少一个存储器中存储有指令。该存储器可以为芯片内部的存储单元，例如，寄存器、缓存等，也可以是该芯片的存储单元(例如，只读存储器、随机存取存储器等)。
本申请实施例还提供了一种计算机存储介质，该计算机存储介质用于储存为上述传输 数据的装置所用的计算机软件指令，其包括用于执行为传输数据的装置所设计的程序。
该传输数据的装置可以如前述图5或图6所描述的传输数据的装置。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品包括计算机软件指令，该计算机软件指令可通过处理器进行加载来实现上述图2中方法的流程。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。

Claims (21)

  1. 一种传输数据的方法，其特征在于，包括：
    所述第一设备接收来自第二设备的数据；
    所述第一设备获取第一对应关系；
    所述第一设备根据所述第一对应关系确定反馈资源；
    所述第一设备在所述反馈资源上向所述第二设备发送第一反馈信息；
    其中，所述第一对应关系包括所述反馈资源与所述第一设备所处区域的对应关系、所述反馈资源与所述第一设备的标识的对应关系或所述反馈资源与所述第二设备的标识的对应关系。
  2. 根据权利要求1所述的方法，其特征在于，所述第一设备为接收来自第二设备的数据的N个设备中的一个。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一反馈信息指示所述第一设备接收数据错误。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，其特征在于，所述第一设备在所述反馈资源上向所述第二设备发送第一反馈信息包括：
    基于满足预设条件，所述第一设备在所述反馈资源上向所述第二设备发送第一反馈信息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述反馈资源为频域资源或时域资源。
  6. 根据权利要求5所述的方法，其特征在于，所述反馈资源为时域资源；
    所述第一对应关系指示所述第一设备所处区域对应的时域资源比第三设备所处区域对应的时域资源在时间轴上晚，所述第三设备属于所述N个设备中的一个，且所述第三设备所处区域与所述第二设备之间的最大距离比所述第一设备所处区域与所述第二设备之间的最大距离大。
  7. 根据权利要求6所述的方法，其特征在于，所述基于满足预设条件，所述第一设备在所述反馈资源上向所述第二设备发送第一反馈信息包括：
    基于所述第一设备接收数据错误，且接收到来自所述第三设备的第二反馈信息的信号强度小于或等于预设信号强度，所述第一设备向所述第二设备发送第一反馈信息。
  8. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    基于所述第一设备接收数据正确，且接收到来自所述第三设备的第二反馈信息的信号强度小于或等于预设第一信号强度，所述第一设备向所述第二设备发送第二反馈信息。
  9. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    基于所述第一设备接收数据错误，且接收到来自所述第三设备的第二反馈信息的信号强度大于或等于预设第一信号强度，所述第一设备不向所述第二设备发送第一反馈信息。
  10. 一种传输数据的方法，其特征在于，包括：
    第二设备以第一传输功率向第一设备发送数据；
    所述第二设备接收来自第一设备在反馈资源上的第一反馈信息，所述反馈资源由所述 第一设备根据所述第一对应关系确定，其中，所述第一对应关系包括所述反馈资源与所述第一设备所处区域的对应关系、所述反馈资源与所述第一设备的标识的对应关系或所述反馈资源与所述第二设备的标识的对应关系。
  11. 根据权利要求10所述的方法，其特征在于，所述第二设备以第一传输功率向第一设备发送数据包括：
    第二设备以第一传输功率向包括第一设备在内的N个设备发送数据，N为正整数。
  12. 根据权利要求11所述的方法，其特征在于，所述第一反馈信息用于指示所述第一设备接收数据错误；
    在所述第二设备接收来自第一设备在反馈资源上的第一反馈信息之后，所述方法还包括：
    所述第二设备根据所述第一反馈信息以第二传输功率向第一设备发送数据。
  13. 根据权利要求12所述的方法，其特征在于，所述第二传输功率与所述第一传输功率相同。
  14. 根据权利要求12所述的方法，其特征在于，所述第二传输功率与所述第一传输功率不同。
  15. 根据权利要求12所述的方法，其特征在于所述第一对应关系包括所述反馈资源与所述第一设备所处区域的对应关系；
    在所述第二设备接收来自第一设备在反馈资源上的第一反馈信息之后，在所述第二设备根据所述第一反馈信息以第二传输功率向第一设备发送数据之前，所述方法还包括：
    所述第二设备根据所述第一对应关系和所述反馈资源确定所述第一设备所处的区域；
    所述第二设备根据所述第一设备所处的区域确定所述第二传输功率。
  16. 根据权利要求10至15中任意一项所述的方法，其特征在于，所述反馈资源为频域资源或时域资源。
  17. 一种传输数据的装置，其特征在于，包括：
    接收单元，用于接收来自第二设备的数据；
    处理单元，用于获取第一对应关系；
    所述处理单元，还用于根据所述第一对应关系确定反馈资源；
    发送单元，用于在所述反馈资源上向所述第二设备发送第一反馈信息；
    其中，所述第一对应关系包括所述反馈资源与所述第一设备所处区域的对应关系、所述反馈资源与所述第一设备的标识的对应关系或所述反馈资源与所述第二设备的标识的对应关系。
  18. 一种传输数据的装置，其特征在于，包括：
    发送单元，用于以第一传输功率向第一设备发送数据；
    接收单元，用于接收来自第一设备在反馈资源上的第一反馈信息，所述反馈资源由所述第一设备根据所述第一对应关系确定，其中，所述第一对应关系包括所述反馈资源与所述第一设备所处区域的对应关系、所述反馈资源与所述第一设备的标识的对应关系或所述反馈资源与所述第二设备的标识的对应关系。
  19. 一种传输数据的设备，其特征在于，包括：至少一个处理器和存储器，存储器存储有可在处理器上运行的计算机执行指令，当所述计算机执行指令被所述处理器执行时，所述终端设备执行如上述权利要求1-16中任意一项所述的方法。
  20. 一种存储一个或多个计算机执行指令的计算机可读存储介质，其特征在于，当所述计算机执行指令被处理器执行时，所述处理器执行如上述权利要求1-16任意一项所述的方法。
  21. 一种计算机程序产品，该计算机程序产品包括计算机软件指令，该计算机软件指令可通过处理器进行加载来实现如上述权利要求1-16任意一项所述的方法。
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