WO2019128601A1 - 一种应答信息的发送和接收方法、通信设备及系统 - Google Patents

一种应答信息的发送和接收方法、通信设备及系统 Download PDF

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Publication number
WO2019128601A1
WO2019128601A1 PCT/CN2018/117817 CN2018117817W WO2019128601A1 WO 2019128601 A1 WO2019128601 A1 WO 2019128601A1 CN 2018117817 W CN2018117817 W CN 2018117817W WO 2019128601 A1 WO2019128601 A1 WO 2019128601A1
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Prior art keywords
symbol
symbols
symbol set
control information
information
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PCT/CN2018/117817
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English (en)
French (fr)
Inventor
罗俊
向铮铮
张锦芳
卢磊
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华为技术有限公司
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Publication of WO2019128601A1 publication Critical patent/WO2019128601A1/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
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • Embodiments of the present application relate to a communication system, and in particular, to a method and a system for transmitting and receiving response information, a communication device, and a system.
  • V2D Device to Device
  • V2V Vehicle to Vehicle
  • V2P Vehicle to Pedestrian
  • V2I/N Vehicle/Infrastructure/Network
  • V2X Vehicle to Infrastructure/ Network
  • the first terminal device periodically transmits some information such as location, speed, intention, and the like to the second terminal device to improve the safety of driving the vehicle.
  • the second terminal device After receiving the foregoing information sent by the first terminal device, the second terminal device sends back response information to the first terminal device, where the response information includes acknowledgement (ACK) information or negative acknowledgement (NACK) information, if If the first terminal device receives the NACK information, the first terminal device resends the foregoing information to the second communication device, and if the first terminal device receives the ACK information, the first terminal device does not go to the second terminal device.
  • the communication device transmits the above information.
  • the terminal device can only receive information or send information in one subframe. Therefore, the first terminal device transmits information to the second communication device, and the first communication device receives the response information from the second terminal device. The time required is relatively long and cannot meet the requirements of V2X communication for low latency.
  • Embodiments of the present application provide a method for transmitting and receiving response information, a communication device, and a system, which can reduce the delay of V2X communication.
  • a method for receiving response information comprising: a first communication device transmitting data to a second communication device on a first set of symbols of a first time unit, wherein the first time unit includes a first symbol a set and a second set of symbols, the first set of symbols and the second set of symbols not including the same symbol; the first communication device from the second set of symbols of the first time unit from the second The communication device receives the response information, the response information being used to indicate whether the second communication device correctly receives the data.
  • the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the first communication device is again on the second symbol set of the first time unit. Receiving the response information from the second communication device, the transmission data and the reception response information are all completed in the first time unit, thus reducing the delay of the V2X communication.
  • the first communication device sends first control information to the second communication device on the first time unit; the first control information is used to indicate the first symbol set The included symbol and the symbol included in the second symbol set; or the first control information is x-bit information, x is a positive integer, and the value of the first control information is predefined A symbol included in a symbol set and a symbol included in the second symbol set have a corresponding relationship.
  • the transmitting, by the first communications device, the first control information to the second communications device on the first time unit comprises: the first communications device in the first time set of the first time unit Transmitting the first control information to the second communication device on a frequency domain resource; the first communication device transmitting data to the second communication device on the first symbol set of the first time unit comprises: the first communication device Transmitting the data to the second communications device on a second frequency domain resource of the first symbol set of the first time unit, where the first frequency domain resource and the second frequency domain resource are different frequencies Domain resource.
  • the first time unit further includes a third set of symbols, the third set of symbols is used by the first communications device to receive information from a network device, the third set of symbols and the The first set of symbols and the second set of symbols do not include the same symbol; the first communications device receives information from the network device on the third set of symbols.
  • the first communications device receives second control information from the network device on the first time unit; the second control information is used to indicate that the first symbol set is included a symbol, a symbol included in the second set of symbols, and a symbol included in the third set of symbols; or the second control information is information of y bits, y is a positive integer, and the second of the y bits The value of the control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the third symbol set.
  • the third set of symbols precedes the first set of symbols and the second set of symbols. Therefore, the delay of the first communication device receiving the downlink information from the network device is reduced.
  • the first time unit further includes a fourth symbol set, where the fourth symbol set is used by the first communications device to send information to the network device, where the fourth symbol set is The first set of symbols, the second set of symbols, and the third set of symbols do not include the same symbol; the first communications device transmits information to the network device on the fourth set of symbols.
  • the first communications device receives third control information from the network device on the first time unit; the third control information is used to indicate that the first symbol set is included a symbol, a symbol included in the second symbol set, and a symbol included in the fourth symbol set; or the third control information includes z-bit information, z is a positive integer, and the z-bit is The value of the three control information has a corresponding relationship with the symbol included in the predefined first symbol set, the symbol included in the second symbol set, and the symbol included in the fourth symbol set.
  • the third control information is further used to indicate a symbol included in the third symbol set; or the third control information includes z-bit information, z is a positive integer, the z The value of the third control information of the bit and the predefined symbol included in the first symbol set, the symbol included in the second symbol set, the symbol included in the third symbol set, and the fourth Symbols contained in a symbol set have a corresponding relationship.
  • the fourth set of symbols is subsequent to the first set of symbols, the second set of symbols, and the third set of symbols. Thereby, the delay of the first communication device to send uplink information to the network device is reduced.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least between the first to fourth symbol sets adjacent to each other One symbol is used as the interval Gap.
  • the first time unit is a time slot or a mini time slot.
  • a first communication device comprising: a sending unit, configured to send data to a second communications device on a first set of symbols of a first time unit, wherein the first time unit includes a first symbol a set and a second set of symbols, the first set of symbols and the second set of symbols do not include the same symbol; a receiving unit, configured to, from the second communication on the second set of symbols of the first time unit The device receives response information, the response information being used to indicate whether the second communication device correctly receives the data.
  • the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the first communication device is again on the second symbol set of the first time unit. Receiving the response information from the second communication device, the transmission data and the reception response information are all completed in the first time unit, thus reducing the delay of the V2X communication.
  • the sending unit is further configured to send first control information to the second communications device on the first time unit; the first control information is used to indicate the first a symbol included in the symbol set and a symbol included in the second symbol set; or the first control information is information of x bits, x is a positive integer, and the value of the first control information is compared with a predefined
  • the symbols included in the first symbol set and the symbols included in the second symbol set have a corresponding relationship.
  • the sending, by the sending unit, the first control information to the second communications device on the first time unit comprises: the first frequency of the first symbol set of the sending unit in the first time unit Sending first control information to the second communication device on the domain resource; sending, by the sending unit, the data to the second communication device on the first symbol set of the first time unit comprises: the sending unit at the first time And transmitting, by the second frequency domain resource of the first symbol set of the unit, the data to the second communications device, where the first frequency domain resource and the second frequency domain resource are different frequency domain resources.
  • the first time unit further includes a third symbol set, the third symbol set is used by the receiving unit to receive information from a network device, the third symbol set and the first The set of symbols and the second set of symbols do not include the same symbol; the receiving unit is further configured to receive information from the network device on the third set of symbols.
  • the receiving unit is further configured to receive second control information from the network device on the first time unit; the second control information is used to indicate the first symbol set The included symbol, the symbol included in the second symbol set, and the symbol included in the third symbol set; or the second control information is information of y bits, y is a positive integer, and the y bit The value of the second control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the third symbol set.
  • the third set of symbols precedes the first set of symbols and the second set of symbols. Therefore, the delay of the first communication device receiving the downlink information from the network device is reduced.
  • the first time unit further includes a fourth symbol set, where the fourth symbol set is used by the sending unit to send information to the network device, the fourth symbol set is The first symbol set, the second symbol set, and the third symbol set do not include the same symbol; the sending unit is further configured to send information to the network device on the fourth symbol set.
  • the receiving unit is further configured to receive third control information from the network device on the first time unit; the third control information is used to indicate the first symbol set a symbol included, a symbol included in the second symbol set, and a symbol included in the fourth symbol set; or the third control information includes z-bit information, z is a positive integer, the z-bit The value of the third control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the fourth symbol set.
  • the third control information is further used to indicate a symbol included in the third symbol set; or the third control information includes z-bit information, z is a positive integer, the z The value of the third control information of the bit and the predefined symbol included in the first symbol set, the symbol included in the second symbol set, the symbol included in the third symbol set, and the fourth Symbols contained in a symbol set have a corresponding relationship.
  • the fourth set of symbols is subsequent to the first set of symbols, the second set of symbols, and the third set of symbols. Thereby, the delay of the first communication device to send uplink information to the network device is reduced.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least between the first to fourth symbol sets adjacent to each other One symbol is used as the interval Gap.
  • the first time unit is a time slot or a mini time slot.
  • a third aspect provides a method for transmitting response information, comprising: a second communication device receiving data from a first communication device on a first set of symbols of a first time unit, wherein the first time unit includes a first symbol a set and a second set of symbols, the first set of symbols and the second set of symbols not including the same symbol; the second communication device to the first on the second set of symbols of the first time unit
  • the communication device transmits a response message, the response message being used to indicate whether the second communication device correctly receives the data.
  • the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the first communication device is again on the second symbol set of the first time unit. Receiving the response information from the second communication device, the transmission data and the reception response information are all completed in the first time unit, thus reducing the delay of the V2X communication.
  • the second communication device receives first control information from the first communication device on the first time unit; the first control information is used to indicate the first symbol set The included symbol and the symbol included in the second set of symbols; or the first control information includes x-bit information, x is a positive integer, and the value of the first control information of the x-bit is predefined
  • the symbol included in the first symbol set and the symbol included in the second symbol set have a corresponding relationship.
  • the receiving, by the second communications device, the first control information from the first communications device on the first time unit comprises: the first communications device in the first time set of the first time unit Receiving, by the first communication device, the first control information on a frequency domain resource;
  • the second communication device receiving data from the first communication device on the first symbol set of the first time unit comprises: the second communication device Receiving, by the first communication device, the data on a second frequency domain resource of the first symbol set of the first time unit, where the first frequency domain resource and the second frequency domain resource are different frequencies Domain resource.
  • the first time unit further includes a third set of symbols, the third set of symbols is used by the second communications device to receive information from a network device, the third set of symbols and the The first set of symbols and the second set of symbols do not include the same symbol; the second communication device receives information from the network device on the third set of symbols.
  • the second communication device receives second control information from the network device on the first time unit; the second control information is used to indicate that the first symbol set is included a symbol, a symbol included in the second set of symbols, and a symbol included in the third set of symbols; or the second control information includes information of y bits, y is a positive integer, and the second of the y bits The value of the control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the third symbol set.
  • the third set of symbols precedes the first set of symbols and the second set of symbols. Therefore, the delay of the first communication device receiving the downlink information from the network device is reduced.
  • the first time unit further includes a fourth symbol set, where the fourth symbol set is used by the second communications device to send information to the network device, where the fourth symbol set is The first set of symbols, the second set of symbols, and the third set of symbols do not include the same symbol; the second communication device transmits information to the network device on the fourth set of symbols.
  • the second communication device receives third control information from the network device on the first time unit; the third control information is used to indicate that the first symbol set is included a symbol, a symbol included in the second symbol set, and a symbol included in the fourth symbol set; or the third control information includes z-bit information, z is a positive integer, and the z-bit is The value of the three control information has a corresponding relationship with the symbol included in the predefined first symbol set, the symbol included in the second symbol set, and the symbol included in the fourth symbol set.
  • the third control information is further used to indicate a symbol included in the third symbol set; or the third control information includes z-bit information, z is a positive integer, the z The value of the third control information of the bit and the predefined symbol included in the first symbol set, the symbol included in the second symbol set, the symbol included in the third symbol set, and the fourth Symbols contained in a symbol set have a corresponding relationship.
  • the fourth set of symbols is subsequent to the first set of symbols, the second set of symbols, and the third set of symbols. Thereby, the delay of the first communication device to send uplink information to the network device is reduced.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least between the first to fourth symbol sets adjacent to each other One symbol is used as the interval Gap.
  • the first time unit is a time slot or a mini time slot.
  • a second communication device comprising: a receiving unit, configured to receive data from a first communication device on a first set of symbols of a first time unit, wherein the first time unit includes a first symbol a set and a second set of symbols, the first set of symbols and the second set of symbols do not include the same symbol; and a sending unit, configured to send the first communication on the second set of symbols of the first time unit The device sends a response message, the response message being used to indicate whether the second communication device correctly receives the data.
  • the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the first communication device is again on the second symbol set of the first time unit. Receiving the response information from the second communication device, the transmission data and the reception response information are all completed in the first time unit, thus reducing the delay of the V2X communication.
  • the receiving unit is further configured to receive first control information from the first communications device on the first time unit; the first control information is used to indicate the first a symbol included in the symbol set and a symbol included in the second symbol set; or the first control information includes x-bit information, x is a positive integer, and the value of the first control information of the x-bit is The defined symbol included in the first symbol set and the symbol included in the second symbol set have a corresponding relationship.
  • the receiving, by the receiving unit, the first control information from the first communications device on the first time unit comprises: the first frequency of the first symbol set of the receiving unit in the first time unit Receiving first control information from the first communication device on the domain resource; the receiving unit receiving data from the first communication device on the first symbol set of the first time unit comprises: the receiving unit at the first time Receiving, by the first communication device, the data on the second frequency domain resource of the first symbol set of the unit, where the first frequency domain resource and the second frequency domain resource are different frequency domain resources.
  • the first time unit further includes a third symbol set, the third symbol set is used by the receiving unit to receive information from a network device, the third symbol set and the first The set of symbols and the second set of symbols do not include the same symbol; the receiving unit is further configured to receive information from the network device on the third set of symbols.
  • the receiving unit is further configured to receive second control information from the network device on the first time unit; the second control information is used to indicate the first symbol set The included symbol, the symbol included in the second symbol set, and the symbol included in the third symbol set; or the second control information includes y-bit information, y is a positive integer, and the y-bit The value of the second control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the third symbol set.
  • the third set of symbols precedes the first set of symbols and the second set of symbols. Therefore, the delay of the first communication device receiving the downlink information from the network device is reduced.
  • the first time unit further includes a fourth symbol set, where the fourth symbol set is used by the sending unit to send information to the network device, the fourth symbol set is The first symbol set, the second symbol set, and the third symbol set do not include the same symbol; the sending unit is further configured to send information to the network device on the fourth symbol set.
  • the receiving unit is further configured to receive third control information from the network device on the first time unit; the third control information is used to indicate the first symbol set a symbol included, a symbol included in the second symbol set, and a symbol included in the fourth symbol set; or the third control information includes z-bit information, z is a positive integer, the z-bit The value of the third control information has a corresponding relationship with a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and a symbol included in the fourth symbol set.
  • the third control information is further used to indicate a symbol included in the third symbol set; or the third control information includes z-bit information, z is a positive integer, the z The value of the third control information of the bit and the predefined symbol included in the first symbol set, the symbol included in the second symbol set, the symbol included in the third symbol set, and the fourth Symbols contained in a symbol set have a corresponding relationship.
  • the fourth set of symbols is subsequent to the first set of symbols, the second set of symbols, and the third set of symbols. Thereby, the delay of the first communication device to send uplink information to the network device is reduced.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least between the first to fourth symbol sets adjacent to each other One symbol is used as the interval Gap.
  • the first time unit is a time slot or a mini time slot.
  • an embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform the methods described in the above aspects.
  • the embodiment of the present application provides a computer program product, where the program product stores computer software instructions used by the first communication device or the second communication device, where the computer software instructions include the solution for performing the foregoing aspect. program of.
  • an embodiment of the present application provides a chip for performing the method related to the foregoing aspect, where the chip may include a portion having a function of a memory, a processor, a transmitter, a receiver, and/or a transceiver, the memory There are instructions, code and/or data stored therein for performing the methods involved in the above aspects.
  • an embodiment of the present application provides a system, where the system includes the first communications device and the second communications device in the foregoing aspects.
  • FIG. 1 is a schematic architectural diagram of a system in accordance with an embodiment of the present application.
  • FIG. 2 is a method of transmitting and receiving response information, a first communication device, a second communication device, and a system according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a response information transmission resource according to an embodiment of the present application.
  • FIG. 9 is a first communication device in accordance with an embodiment of the present application.
  • FIG. 10 is a second communication device in accordance with an embodiment of the present application.
  • FIG. 11 is a network device according to an embodiment of the present application.
  • the first communication device sends data to one or more second communication devices, and the data may be information such as location, speed, intent, and the like of the first communication device, wherein the intent information may be steering, parallel, U-turn, Acceleration, braking and other information or information such as audio and video.
  • the second communication device After receiving the data, the second communication device sends an ACK response message to the first communication device if the second communication device correctly receives the data, and at this time, the first communication device will not go to the second
  • the communication device transmits the data, and if the second communication device does not correctly receive the data, sends a NACK response message to the first communication device, and at this time, the first communication device sends the data to the second communication device again.
  • the second communication device can receive the data again, improving the reliability of data transmission.
  • V2X communication the requirements for low latency are getting higher and higher. For example, when an accident occurs in a vehicle, it is necessary to inform other vehicles around the vehicle where the accident occurred that there is an accident occurrence and/or accident location information. Since the accident may occur during high-speed driving of the vehicle, the speed of the vehicle is very fast, and the lower delay may be Let other vehicles know the accident as soon as possible, and thus, it is possible to leave more processing time for the driver as much as possible. For example, in the case of palletizing, a number of vehicles form a fleet and are grouped in groups. Since the distance between the vehicle and the vehicle is relatively small, the speed of the vehicle is relatively fast. In the event of a car accident, the rear car must know the accident of the preceding car and the location of the accident in a very short period of time. The lower delay can make the team safer.
  • the network device referred to in the present application is a device deployed in a radio access network to provide a wireless communication function for a first or second communication device.
  • the network device may be a base station (BS), for example, a macro base station, a micro base station, a relay station or an access point, etc., and may be other forms of equipment.
  • BS base station
  • the network device may be a base station (BS), for example, a macro base station, a micro base station, a relay station or an access point, etc., and may be other forms of equipment.
  • the names of devices with network device functions may be different, for example, they are network devices or base stations in the fifth-generation 5G network, in the Long Term Evolution (Long Term Evolution, In the LTE network, the evolved Node B (referred to as eNB or eNodeB), in the third generation 3G network, called Node B, etc., or the roadside unit in V2X communication (Road) Side Unit, RSU), or a chip or system on chip (SOC) inside the network device or base station.
  • eNB or eNodeB Long Term Evolution, In the LTE network, the evolved Node B (referred to as eNB or eNodeB), in the third generation 3G network, called Node B, etc., or the roadside unit in V2X communication (Road) Side Unit, RSU), or a chip or system on chip (SOC) inside the network device or base station.
  • eNB Long Term Evolution, In the LTE network
  • Node B the third generation 3G network
  • the first or second communication device to which the present application relates may include various devices having a wireless communication function or a chip or SOC in the device, and the device having the wireless communication function may be, for example, an in-vehicle device or a wearable device. , a computing device or other processing device connected to the wireless modem, a mobile station (MS), a terminal, a user equipment (UE), and the like.
  • MS mobile station
  • UE user equipment
  • FIG. 2 is a schematic diagram of a method for transmitting uplink information, a first communication device, a second communication device network device, and a system according to an embodiment of the present disclosure.
  • the first communication device includes a transmitting unit 91, a determining unit 92, and a receiving unit 93, wherein the transmitting unit 91 and the receiving unit 93 can be replaced by a transceiver unit.
  • the second communication device includes a receiving unit 101, a determining unit 102, and a transmitting unit 103, wherein the receiving unit 101 and the transmitting unit 103 can be replaced by a transmitting and receiving unit.
  • the network device includes a transmitting unit 111, a determining unit 112, and a receiving unit 113, and the transmitting unit 111 and the receiving unit 113 can be replaced by a transceiver unit.
  • the determining unit 92, the determining unit 102 or the determining unit 112 may be a processor, a sending unit 91, a sending unit 103, and a sending unit 111.
  • the receiving unit 93, the receiving unit 101, the receiving unit 113 or the transceiving unit may be a transceiver, the transmitting unit 91, the transmitting unit 103 or the transmitting unit 111 may be a transmitter, and the receiving unit 93, the receiving unit 101 or the receiving unit 113 may be receiving
  • the transceiver, transmitter or receiver may be a radio frequency circuit, and when the first or second communication device or network device includes a storage unit, the storage unit is configured to store computer instructions, the processor is in communication with the memory, and is processed
  • the computer executes memory stored computer instructions to cause the first communication device, the second communication device, or the network device to perform the method of the embodiment of FIG. 2.
  • the processor may be a general purpose central processing unit (CPU), a microprocessor, and an application specific integrated circuit (ASIC).
  • the determining unit 92, the determining unit 102 or the determining unit 112 may be, for example, a processor, and the transmitting unit 91, the transmitting unit 103 or the transmitting unit 111 may be an output.
  • the receiving unit 93, the receiving unit 101 or the receiving unit 113 may be an input interface, a pin or a circuit, etc.
  • the transceiver unit may be, for example, an input/output interface, a pin or a circuit, or the like.
  • the processing unit may execute computer executed instructions stored by the storage unit to cause the chip within the first communication device or the second communication device to perform the method of FIG. 2.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (Read Only Memory, ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (RAM), etc.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • Step 21 The transmitting unit 91 of the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the receiving unit 101 of the second communication device is on the first symbol set of the first time unit
  • the first communication device receives the data.
  • the first time unit may be a subframe, a time slot or a micro time slot, and the subframe, the time slot or the mini time slot each include a number of symbols.
  • the time slot may include 14 symbols, and the micro time slot.
  • the first time unit includes a first symbol set and a second symbol set, where the first symbol set and the second symbol set do not include the same symbol, and preferably, the symbols included in the first symbol set are consecutive symbols, The symbols contained in the second set of symbols are also consecutive symbols.
  • the data may be information such as status, location, speed, intent, etc. of the first communication device or information such as audio, video, etc., wherein the status information may indicate the occurrence of an accident, a collision or other emergency, and the intent information may be a turn, and Line, U-turn, acceleration, brake and other information.
  • the data sent by the first communication device to the second communication device is packet data, that is, a data packet with a small amount of data.
  • the data sent by the first communication device to the second communication device may also be part of the big packet data, and the large packet data is data with a large amount of data, for example, when an accident occurs in the vehicle represented by the first communication device, Sending information such as location information, accident information, accident image, accident time-frequency, etc. to the vehicle represented by the second communication device, for the driver of the vehicle represented by the second communication device or the second communication device to comprehensively determine the road condition based on the above information
  • the accident image and the accident time frequency are not the most urgent need to be sent to the second communication device. Therefore, the first communication device can only part of the above information, that is, accident information and location information.
  • the first time unit is sent to the second communication device, and the information such as the accident image and the accident time frequency can be sent on the subsequent time unit, thereby reducing the data amount of the data to be transmitted and reducing the technical difficulty of reducing the V2X communication delay. .
  • the embodiment of the present application does not limit the number of the second communication device.
  • the first communication device sends data to the second communication device in a unicast manner, when there are multiple second communication devices.
  • the first communication device transmits data to the plurality of second communication devices in a broadcast or multicast manner.
  • Step 22 The sending unit 103 of the second communication device sends the response information to the first communication device on the second symbol set of the first time unit, where the receiving unit 93 of the first communication device is in the first time unit
  • the response information is received from the second communication device on a set of two symbols.
  • the response information is used to indicate whether the second communication device correctly receives the data, and the response information may be ACK information or NACK information.
  • the response information may be replaced by data, that is, the sending unit 103 of the second communications device sends data to the first communications device on the second set of symbols of the first time unit, and the receiving unit 93 of the first communications device Receiving, on the second symbol set of the first time unit, the data from the second communication device, where the data may be information such as status, location, speed, intention, or the like of the second communication device or information such as audio, video, and the like.
  • the status information may indicate the occurrence of an accident, a collision, or other unexpected conditions
  • the intent information may be information such as steering, parallel, U-turn, acceleration, braking, and the like.
  • the first communication device transmits data to the second communication device on the first symbol set of the first time unit, and the first communication device is again on the second symbol set of the first time unit. Receiving the response information from the second communication device, the transmission data and the reception response information are all completed in the first time unit, thus reducing the delay of the V2X communication.
  • the transmitting unit 91 of the first communication device may further transmit the first control information to the second communication device on the first time unit.
  • the first control information may be Sidelink Assignment (SA), and the SA information may be transmitted on a physical side control channel (Physical Sidelink).
  • the first control information may be used to indicate a symbol included in the first symbol set and a symbol included in the second symbol set, for example, the first control information indicates which symbols of the data are sent, and the data is used to send data.
  • the symbol constitutes the first set of symbols
  • the first control information may also indicate which symbols of the response information are received, and the symbols for receiving the response information constitute the second set of symbols.
  • the first control information indicates the use of at least one symbol included in the first time unit, that is, whether a certain symbol is used for transmitting data or for transmitting response information.
  • the first control information may further indicate a difference between the first symbol set and the number of symbols included in the second symbol set, whereby the second communication device determines the first according to the difference value and the total number of symbols included in the first time unit
  • the symbol set contains symbols and the second symbol set contains symbols.
  • the first control information may further indicate a symbol included in the first symbol set, and the second symbol set may include j symbols starting from the kth symbol after the last symbol included in the first symbol set, and k and j are positive integers, where
  • the first or second communication device may be preset by the network device, for example, the last symbol of the first symbol set is the symbol n, and the second communication device may determine the first symbol according to the first control information.
  • the included symbols are set, and the symbols contained in the second symbol set are determined to be symbols n+k to n+k+j according to the symbols n, k, and j.
  • the first control information may also include x-bit information, where x is a positive integer, and the value of the first control information is included in a predefined symbol included in the first symbol set and the second symbol set
  • the symbol has a corresponding relationship, that is, the value of the x bit has a corresponding relationship with the symbol included in the predefined first symbol set and the symbol included in the second symbol set.
  • the value of the first control information of the x bits and the ratio of the number of symbols included in the predefined first symbol set to the number of symbols included in the second symbol set have a correspondence relationship.
  • the first control information is 2-bit information, so the value of the 2-bit first control information may be 00, 01, 10, and 11, as shown in Table 1, 00 corresponds to the first symbol set as symbol 1 To symbol 6, the second symbol set is symbol 8 to symbol 12; 01 corresponds to the first symbol set as symbol 1 to symbol 7, the second symbol set is symbol 9 to symbol 12; 10 corresponds to the first symbol set as symbol 1 to symbol 8.
  • the second set of symbols is from symbol 10 to symbol 12; 11 corresponds to the first set of symbols being symbols 1 through 9 and the second set of symbols being symbols 11 through 12. It should be understood that Table 1 is merely an example, and the values of x, the first symbol set, and the second symbol set may include other values.
  • the second communication device may determine the first symbol set and the second symbol set by means of table lookup according to the value of the first control information. Contained symbols. Transmitting, by the first communications device, data to the second communications device on the first set of symbols of the first time unit includes: the first communications device, in the symbol included in the first set of symbols of the first time unit, Transmitting, by the second communications device, the data, the first communications device receiving the response information from the second communications device on the second set of symbols of the first time unit comprises: the first communications device in the first time The response information is received from the second communication device on a symbol included in the second set of symbols of the unit.
  • the value of the first control information The symbol contained in the first symbol set
  • the second symbol set contains symbols 00 Symbol 1 - symbol 6 Symbol 8-symbol 12 01 Symbol 1 - symbol 7 Symbol 9-symbol 12 10 Symbol 1 - symbol 8 Symbol 10-symbol 12 11 Symbol 1 - symbol 9 Symbol 11 - symbol 12
  • the first communications device may receive, by the network device, first control information, where the first control information is used to indicate whether the first communications device is a sending device, in this case, needs to be predefined by a communication protocol. Which symbols are included in the first set of symbols and which symbols are included in the second set of symbols.
  • the first communication device receives the first control information sent by the base station and is indicated as the source device, the first communication device is first defined in the protocol.
  • the set of symbols transmits data to the second communication device and the response information is received from the second communication device over the second set of symbols.
  • the first symbol set includes symbols 1 to 10
  • the second symbol set includes symbols 11 and 12
  • the first communication device transmits the first control information to the second communication device on the first time unit.
  • the method includes: the first communications device transmitting the first control information to the second communications device on the first frequency domain resource of the first symbol set of the first time unit.
  • the first communications device further sends SA information to the second communications device on the first frequency domain resource of the first symbol set of the first time unit, where the first control information may be included in the SA information.
  • Transmitting, by the first communications device, data to the second communications device on the first set of symbols of the first time unit comprises: a second frequency of the first communications device in the first set of symbols of the first time unit
  • the data is sent to the second communications device on the domain resource, where the first frequency domain resource and the second frequency domain resource are different frequency domain resources.
  • the first communication device may receive the response information from the second communication device on the first frequency domain resource and the second frequency domain resource.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least one symbol between the first symbol set and the second symbol set is used as the interval Gap, as shown in the figure As shown in 3, AGC and Gap occupy 1 symbol respectively.
  • the first time unit further includes a third symbol set
  • the third symbol set is used by the first communications device to receive information from the network device, the third symbol set and the first symbol set And the second symbol set does not include the same symbol
  • the receiving unit 93 of the first communication device receives information from the network device on the third symbol set
  • the sending unit 111 of the network device is in the third
  • the information is sent to the first communication device on a set of symbols.
  • the information is downlink information, and may be downlink data sent by the network device, or downlink control information (DCI) sent by the network device.
  • DCI downlink control information
  • the third symbol set is before the first symbol set and the second symbol set, that is, the first communication device receives the downlink information
  • the V2X communication is performed before the first communication device and the second communication device, in the V2X.
  • V2X communication between communication devices is scheduled based on a network device, and the third symbol set can ensure that the first communication device is at a time before the first symbol set and the second symbol set
  • Receiving information from the network device and V2X communication to the second communication device within the unit reduces the delay for the first communication device to receive downlink information from the network device.
  • the symbols included in the first symbol set are consecutive symbols
  • the symbols included in the second symbol set are consecutive symbols
  • the symbols included in the third symbol set are consecutive symbols.
  • the transmitting unit 91 of the first communication device transmits data to the second communication device on the first set of symbols.
  • the transmitting unit of the first communication device is in the first frequency domain resource of the first symbol set.
  • the second communication device transmits the SA information and transmits the data to the second communication device in the second frequency domain resource of the first symbol set, and the second communication device can decode the received data according to the SA.
  • the receiving unit 93 of the first communication device receives response information from the second communication device on the second set of symbols, the response information being used to indicate whether the second communication device correctly receives the data.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and the first symbol set and the second symbol set and the third symbol set respectively have at least one symbol As the gap Gap, as shown in FIG. 4, AGC and Gap occupy 1 symbol respectively.
  • the first communication device may receive second control information from the network device on the first time unit, and the receiving unit 93 of the specific first communication device may be in the third of the first time unit
  • the second control information is received from the network device on a set of symbols.
  • the second control information may be downlink control information DCI.
  • the second control information may be used to indicate a symbol included in the first symbol set, a symbol included in the second symbol set, and a symbol included in the third symbol set, for example, the second control information indicates sending data. What are the symbols, the symbols used to transmit the data constitute the first set of symbols, and the second control information may also indicate which symbols of the response information are received, and the symbols for receiving the response information constitute the The second set of symbols, the second control information may also indicate which symbols of the downlink information are received from the network device, and the symbols for receiving the downlink information from the network device constitute a third set of symbols.
  • the second control information indicates the use of the at least one symbol included in the first time unit, that is, whether the one symbol is used for transmitting data, for transmitting the response information, or for transmitting the downlink information.
  • the second control information may further indicate a difference between the first symbol set, the second symbol set, and the number of symbols included in the third symbol set, whereby the second communication device according to the difference and the symbol included in the first time unit The total number determines a symbol included in the first set of symbols, a second set of symbols, and a symbol included in the third set of symbols.
  • the second control information may further indicate a symbol included in the first symbol set, and the second symbol set may include j symbols starting from a kth symbol after the last symbol included in the first symbol set, and the third symbol set may include the first symbol.
  • the m symbols starting from the last symbol after the last symbol of the symbol set, k, j, l, and m are positive integers, which may be preset by the protocol, or may be notified by the network device to the first or second communication device.
  • the second communication device can determine the symbols included in the first set of symbols according to the first control information, and determine the second according to the symbols n, k, j, l and m
  • the symbol set contains symbols from symbol n+k to symbol n+k+j, and determines that the symbol included in the third symbol set is symbol n+1 to symbol n+l+m.
  • the second control information may also include information of y bits, where y is a positive integer, and the value of the second control information is included in a predefined symbol included in the first symbol set, and included in the second symbol set.
  • a symbol included in the third symbol set has a correspondence relationship, that is, a value of y bits and a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and the symbol The symbols included in the third symbol set have a corresponding relationship.
  • the second control information is 3-bit information, so the value of the second control information of the three bits is eight, and may be 000, 001, 010, 011, 100, 101, 110, 111, for example, Table 2 As shown, 000 corresponds to the first symbol set as symbol 4 to symbol 9, the second symbol set is symbol 11 to symbol 13, the third symbol set is symbol 0 and symbol 1; 001 corresponds to the first symbol set as symbol 5 to symbol 10 The second set of symbols is symbol 12 and symbol 13, and the third set of symbols is symbol 0 to symbol 2. It should be understood that Table 2 is merely an example, and the values of y, the first symbol set, the second symbol set, and the third symbol set may be other values.
  • the transmitting, by the first communications device, data to the second communications device on the first set of symbols of the first time unit comprises: the first communications device being included in the first set of symbols of the first time unit
  • the receiving, by the first communication device, the response information from the second communication device on the second set of symbols of the first time unit comprises: the first communication The device receives the response information from the second communication device on a symbol included in a second set of symbols of the first time unit; the first communication device is from the network device on the third set of symbols
  • Receiving the information includes the first communication device receiving information from the network device on a symbol included in a third set of symbols of the first time unit.
  • the first communications device may receive, by the network device, second control information, where the second control information is used to indicate whether the first communications device is a sending device, in this case, needs to be predefined by a communication protocol. Which symbols are included in the first set of symbols, which symbols are included in the second set of symbols, and which symbols are included in the third set of symbols.
  • the first communication device receives the first control information sent by the base station and is indicated as the transmitting device, the first communication The device transmits data to the second communication device over a first set of symbols predefined by the protocol, receives response information from the second communication device over the second set of symbols, and receives downlink information from the network device over the third set of symbols.
  • the first time unit further includes a fourth symbol set, where the fourth symbol set is used by the first communications device to send information to the network device, the fourth symbol set and the first The symbol set, the second symbol set, and the third symbol set do not include the same symbol, and the sending unit 91 of the first communications device sends information to the network device on the fourth symbol set,
  • the receiving unit 113 of the network device receives the information from the first communication device on the fourth set of symbols.
  • the information is the uplink information, and may be the uplink data sent by the first communications device to the network device, or may be the uplink control information (UCI) sent by the first communications device to the network device.
  • UCI uplink control information
  • the fourth symbol set is after the first symbol set, the second symbol set, and the third symbol set, that is, the first communications device sends uplink information to the network device later than the first communications device and The second communication device performs the V2X communication, so that the first communication device can complete the sending of the uplink information to the network device in one time unit after the V2X communication is completed, and the delay for transmitting the uplink information is reduced.
  • the symbol included in the first symbol set is a continuous symbol
  • the symbol included in the second symbol set is a continuous symbol
  • the symbol included in the third symbol set is a continuous symbol
  • the symbol included in the fourth symbol set For continuous symbols.
  • the first time unit may include the first, second, and third symbol sets.
  • the first time unit may also include the first, second, and fourth symbol sets, as shown in FIG.
  • the first time unit may also include the first to fourth symbol sets.
  • the first communications device receives third control information from the network device on the first time unit, the third control information is used to indicate a symbol included in the first symbol set, the a symbol included in the second symbol set and a symbol included in the fourth symbol set.
  • the third control information indicates which symbols of the data are transmitted, the symbols for transmitting the data constitute the first symbol set, and the second control information may also indicate which symbols of the response information are received, which are used for receiving
  • the symbol of the response information constitutes the second set of symbols
  • the third control information may further indicate which symbols of the uplink information are sent to the network device, and the symbols for transmitting the uplink information to the network device constitute a third symbol set.
  • the third control information indicates the use of at least one symbol included in the first time unit, that is, whether a certain symbol is used for transmitting data, for transmitting response information, or for transmitting uplink information.
  • the third control information is further used to indicate a symbol included in the third symbol set, for example, the third control information not only indicates the first, second, and fourth symbol sets, but also The symbols indicating the downlink information received from the network device may be indicated, and the symbols for receiving the downlink information from the network device constitute a third symbol set.
  • the third control information may further indicate a difference between the first symbol set, the second symbol set, the third symbol set, and the number of symbols included in the fourth symbol set, whereby the second communication device is based on the difference and the first time
  • the total number of symbols included in the unit determines a symbol included in the first symbol set, a second symbol set, a third symbol set, and a symbol included in the fourth symbol set.
  • the third control information may further indicate a symbol included in the first symbol set, and the second symbol set may include j symbols starting from a kth symbol after the last symbol included in the first symbol set, and the third symbol set may include the first symbol.
  • the m symbol starting from the last symbol after the last symbol of the symbol set, and the third symbol set may include q symbols starting from the p symbol after the last symbol included in the first symbol set, k, j, l, m, p, and q are positive integers, which may be preset by the protocol, or may be notified by the network device to the first or second communication device, for example, the last symbol of the first symbol set is the symbol n, then the second communication device Determining, according to the first control information, a symbol included in the first symbol set, and determining, according to the symbols n, k, j, l, m, p, and q, that the symbol included in the second symbol set is a symbol n+k to a symbol n+k+ j. Determine that the symbol included in the third symbol set is the symbol n+1 to the symbol n+l+m, and determine that the symbol included in the third symbol set is the symbol n+p to the symbol n+p+q.
  • the third control information may also include z-bit information, z is a positive integer, and the value of the third control information is included in a predefined symbol included in the first symbol set, and the second symbol set includes And a symbol included in the fourth symbol set has a correspondence relationship, that is, a value of z bits and a symbol included in the predefined first symbol set, a symbol included in the second symbol set, and the symbol The symbols included in the fourth symbol set have a corresponding relationship.
  • the value of the z-bit third control information and the predefined symbol included in the first symbol set, the symbol included in the second symbol set, and the symbol included in the third symbol set Corresponding to the symbols included in the fourth symbol set.
  • the correspondence between the value of the third control information of the Z bit and the symbol included in the first to fourth symbol sets may be defined by a form similar to Table 1 or Table 2, and the examples are not described herein again.
  • the previous symbol of the first symbol included in the first symbol set is used to transmit automatic gain control AGC information, and at least one symbol between the adjacent first to fourth symbol sets may be used as the interval Gap, of course There can be no Gap.
  • Transmitting, by the first communications device, data to the second communications device on the first set of symbols of the first time unit includes: the first communications device, in the symbol included in the first set of symbols of the first time unit, The second communication device transmits the data.
  • the receiving, by the first communications device, the response information from the second communications device on the second set of symbols of the first time unit comprises: the second communications device in the first time unit of the first communications device The response information is received from the second communication device on the included symbol.
  • Transmitting, by the first communications device, information to the network device on the fourth set of symbols includes: the first communications device, on a symbol included in a fourth set of symbols of the first time unit, to the network The device sends a message.
  • Transmitting, by the first communications device, information to the network device on the fourth set of symbols includes: the first communications device, on a symbol included in a fourth set of symbols of the first time unit, to the network The device sends a message.
  • the first communications device may receive third control information from the network device, where the third control information is used to indicate whether the first communications device is a sending device, in this case, needs to be predefined by a communication protocol.
  • the third control information is used to indicate whether the first communications device is a sending device, in this case, needs to be predefined by a communication protocol.
  • the first control information may be further for indicating a fifth set of symbols selected by the first communication device for transmitting data to the second communication device, or for using the second communication device Receiving the response information, or for transmitting information to the network device, or for receiving information from the network device, that is, the fifth symbol set is used for side-link receiving information, side-link transmitting information, and uplink information transmission. Or multiple types of information transmission such as downlink information transmission.
  • the fifth symbol set is specifically used for that type of information transmission, and may be autonomously and flexibly selected by the first communication device, or may be scheduled and used by the network device. For example, as shown in FIG. 7, the fifth set of symbols can be selected by the first communication device for transmitting uplink information to the network device, or for example, as shown in FIG. 8, the fifth set of symbols can be selected by the first communication device for use from the second communication.
  • the device receives the response message.
  • the first time unit of the embodiment of the present application may include at least one symbol set in the first symbol set to the fifth symbol set.
  • the first communication device receives fourth control information from the network device on the first time unit, where the fourth control information is used to indicate a symbol included in the first symbol set, and the second symbol set The included symbol, the symbol included in the fourth symbol set, and the symbol included in at least one of the symbols included in the fifth symbol set.
  • the specific form of the fourth control information is the same as the foregoing embodiment.
  • the fourth control information indicates which of the symbols included in the first to fifth symbol sets, or the fourth control information includes information of w bits, w is a positive integer, and the value of the fourth control information is compared with a predefined a symbol included in the first symbol set, a symbol included in the second symbol set, a symbol included in the third symbol set, a symbol included in the fourth symbol set, and the fifth symbol set
  • the included symbols have a corresponding relationship, that is, a value of w bits and a symbol included in the predefined first symbol set, a symbol included in the second symbol set, a symbol included in the third symbol set,
  • the symbol included in the fourth symbol set and the symbol included in the fifth symbol set have a corresponding relationship.
  • the resource for transmitting the SA and the resource for transmitting the data shown in FIG. 3 to FIG. 8 are frequency division multiplexed.
  • the resource for transmitting the SA and the resource for transmitting the data may also be time division multiplexed, that is, the first communication device. Sending an SA to the second communication device on the first partial symbol of the first set of symbols, the first communication device transmitting data to the second communication device on the second partial symbol of the first set of symbols, the first partial symbol comprising a plurality of symbols, the second Some symbols also contain several symbols, and the first partial symbol and the second partial symbol do not contain the same symbol.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种应答信息的发送和接收方法、通信设备及系统，适用于车联网，自动驾驶或ADAS，例如V2X，V2X，LTE-V，eV2X，其中发送方法包括：第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；所述第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。由此，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。

Description

一种应答信息的发送和接收方法、通信设备及系统
本申请要求于2017年12月28日提交中国国家知识产权局、申请号为201711465703.1、申请名称为“一种应答信息的发送和接收方法、通信设备及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请的实施例涉及通信系统，尤其是涉及一种应答信息的发送和接收方法、通信设备及系统。
背景技术
设备到设备(Device to Device，D2D)通信、车与车(Vehicle to Vehicle，V2V)通信、车与行人V2P(Vehicle to Pedestrian，V2P)通信或车与基建/网络V2I/N(Vehicle to Infrastructure/Network，V2I/N)通信是终端设备(terminal device)之间直接进行通信的技术，V2V、V2P以及V2I/N统称为V2X，即车与任何事物相通信。
以V2X通信为例，第一终端设备会将自身的一些信息，例如位置、速度、意图等信息周期性地向第二终端设备发送，以提高车辆行驶的安全性。第二终端设备在接收到第一终端设备发送的上述信息后会向第一终端设备反馈应答信息，此应答信息包括确认(acknowledgement，ACK)信息或否定性确认(negative acknowledgement，NACK)信息，如果第一终端设备收到的是NACK信息，则第一终端设备会向第二通信设备重新发送上述信息，如果第一终端设备收到的是ACK信息，则第一终端设备不会再向第二通信设备发送上述信息。在V2X通信中，终端设备在一个子帧内只能进行信息的接收或者信息的发送，因此，第一终端设备向第二通信设备发送信息，并且第一通信设备从第二终端设备接收应答信息所需要的时间是比较长的，无法满足V2X通信对低时延的要求。
发明内容
本申请的实施例提供一种应答信息的发送和接收方法、通信设备及系统，能够降低V2X通信的时延。
第一方面，提供一种应答信息的接收方法，包括：第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；所述第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
通过本申请实施例，第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，而所述第一通信设备又在所述第一时间单元的第二符号集合上从所述第二 通信设备接收应答信息，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。
在一种可能的设计中，所述第一通信设备在所述第一时间单元上向所述第二通信设备发送第一控制信息；所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或所述第一控制信息为x比特的信息，x为正整数，所述第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第一通信设备在所述第一时间单元上向第二通信设备发送第一控制信息包括：第一通信设备在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送第一控制信息；所述第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在所述第一时间单元的第一符号集合的第二频域资源上向所述第二通信设备发送所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
在一种可能的设计中，所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述第一通信设备从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；所述第一通信设备在所述第三符号集合上从所述网络设备接收信息。
在一种可能的设计中，所述第一通信设备在所述第一时间单元上从所述网络设备接收第二控制信息；所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或所述第二控制信息为y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三符号集合在所述第一符号集合和所述第二符号集合之前。由此，降低了第一通信设备从网路设备接收下行信息的时延。
在一种可能的设计中，所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述第一通信设备向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；所述第一通信设备在所述第四符号集合上向所述网络设备发送信息。
在一种可能的设计中，所述第一通信设备在所述第一时间单元上从所述网络设备接收第三控制信息；所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三控制信息还用于指示所述第三符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第四符号集合在所述第一符号集合、所述第二符号集合 和所述第三符号集合之后。由此，降低了第一通信设备向网路设备发送上行信息的时延。
在一种可能的设计中，所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
在一种可能的设计中，所述第一时间单元为时隙或微时隙。
第二方面，提供一种第一通信设备，包括：发送单元，用于在第一时间单元的第一符号集合上向第二通信设备发送数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；接收单元，用于在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
通过本申请实施例，第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，而所述第一通信设备又在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。
在一种可能的设计中，所述发送单元，还用于在所述第一时间单元上向所述第二通信设备发送第一控制信息；所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或所述第一控制信息为x比特的信息，x为正整数，所述第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述发送单元在所述第一时间单元上向第二通信设备发送第一控制信息包括：所述发送单元在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送第一控制信息；所述发送单元在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述发送单元在所述第一时间单元的第一符号集合的第二频域资源上向所述第二通信设备发送所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
在一种可能的设计中，所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述接收单元从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；所述接收单元，还用于在所述第三符号集合上从所述网络设备接收信息。
在一种可能的设计中，所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第二控制信息；所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或所述第二控制信息为y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三符号集合在所述第一符号集合和所述第二符号集合之前。由此，降低了第一通信设备从网路设备接收下行信息的时延。
在一种可能的设计中，所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述发送单元向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；所述发送单元，还用于在所 述第四符号集合上向所述网络设备发送信息。
在一种可能的设计中，所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第三控制信息；所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三控制信息还用于指示所述第三符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第四符号集合在所述第一符号集合、所述第二符号集合和所述第三符号集合之后。由此，降低了第一通信设备向网路设备发送上行信息的时延。
在一种可能的设计中，所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
在一种可能的设计中，所述第一时间单元为时隙或微时隙。
第三方面，提供一种应答信息的发送方法，包括：第二通信设备在第一时间单元的第一符号集合上从第一通信设备接收数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；所述第二通信设备在所述第一时间单元的第二符号集合上向所述第一通信设备发送应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
通过本申请实施例，第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，而所述第一通信设备又在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。
在一种可能的设计中，所述第二通信设备在所述第一时间单元上从所述第一通信设备接收第一控制信息；所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或所述第一控制信息包括x比特的信息，x为正整数，所述x比特的第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第二通信设备在所述第一时间单元上从第一通信设备接收第一控制信息包括：第二通信设备在第一时间单元的第一符号集合的第一频域资源上从第一通信设备接收第一控制信息；所述第二通信设备在第一时间单元的第一符号集合上从所述第一通信设备接收数据包括：所述第二通信设备在所述第一时间单元的第一符号集合的第二频域资源上从所述第一通信设备接收所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
在一种可能的设计中，所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述第二通信设备从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；所述第二通信设备在所述第三符号集合上从所述 网络设备接收信息。
在一种可能的设计中，所述第二通信设备在所述第一时间单元上从所述网络设备接收第二控制信息；所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或所述第二控制信息包括y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三符号集合在所述第一符号集合和所述第二符号集合之前。由此，降低了第一通信设备从网路设备接收下行信息的时延。
在一种可能的设计中，所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述第二通信设备向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；所述第二通信设备在所述第四符号集合上向所述网络设备发送信息。
在一种可能的设计中，所述第二通信设备在所述第一时间单元上从所述网络设备接收第三控制信息；所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三控制信息还用于指示所述第三符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第四符号集合在所述第一符号集合、所述第二符号集合和所述第三符号集合之后。由此，降低了第一通信设备向网路设备发送上行信息的时延。
在一种可能的设计中，所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
在一种可能的设计中，所述第一时间单元为时隙或微时隙。
第四方面，提供一种第二通信设备，包括：接收单元，用于在第一时间单元的第一符号集合上从第一通信设备接收数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；发送单元，用于在所述第一时间单元的第二符号集合上向所述第一通信设备发送应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
通过本申请实施例，第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，而所述第一通信设备又在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。
在一种可能的设计中，所述接收单元，还用于在所述第一时间单元上从所述第一通信设备接收第一控制信息；所述第一控制信息用于指示所述第一符号集合所包含的符号 和所述第二符号集合所包含的符号；或所述第一控制信息包括x比特的信息，x为正整数，所述x比特的第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述接收单元在所述第一时间单元上从第一通信设备接收第一控制信息包括：所述接收单元在第一时间单元的第一符号集合的第一频域资源上从第一通信设备接收第一控制信息；所述接收单元在第一时间单元的第一符号集合上从所述第一通信设备接收数据包括：所述接收单元在所述第一时间单元的第一符号集合的第二频域资源上从所述第一通信设备接收所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
在一种可能的设计中，所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述接收单元从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；所述接收单元，还用于在所述第三符号集合上从所述网络设备接收信息。
在一种可能的设计中，所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第二控制信息；所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或所述第二控制信息包括y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三符号集合在所述第一符号集合和所述第二符号集合之前。由此，降低了第一通信设备从网路设备接收下行信息的时延。
在一种可能的设计中，所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述发送单元向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；所述发送单元，还用于在所述第四符号集合上向所述网络设备发送信息。
在一种可能的设计中，所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第三控制信息；所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第三控制信息还用于指示所述第三符号集合所包含的符号；或所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
在一种可能的设计中，所述第四符号集合在所述第一符号集合、所述第二符号集合和所述第三符号集合之后。由此，降低了第一通信设备向网路设备发送上行信息的时延。
在一种可能的设计中，所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
在一种可能的设计中，所述第一时间单元为时隙或微时隙。
第五方面，本申请实施例提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第六方面，本申请实施例提供了一种计算机程序产品，该程序产品储存有上述第一通信设备或第二通信设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所述方案的程序。
第七方面，本申请实施例提供了一种芯片，用以执行上述方面所涉及的方法，该芯片可以包含具有存储器、处理器、发送器、接收器和/或收发器功能的部分，此存储器中存储有指令、代码和/或数据，用以执行上述方面所涉及的方法。
第八方面，本申请实施例提供了一种系统，所述系统包括上述方面的第一通信设备和第二通信设备。
附图说明
图1是根据本申请实施例的系统的示意性架构图。
图2是根据本申请实施例的一种应答信息的发送和接收方法、第一通信设备、第二通信设备及系统。
图3是根据本申请实施例的一种应答信息传输资源示意图。
图4是根据本申请实施例的一种应答信息传输资源示意图。
图5是根据本申请实施例的一种应答信息传输资源示意图。
图6是根据本申请实施例的一种应答信息传输资源示意图。
图7是根据本申请实施例的一种应答信息传输资源示意图。
图8是根据本申请实施例的一种应答信息传输资源示意图。
图9是根据本申请实施例的一种第一通信设备。
图10是根据本申请实施例的一种第二通信设备。
图11是根据本申请实施例的一种网络设备。
具体实施方式
在图1中，第一通信设备向一个或多个第二通信设备发送数据，此数据可以为第一通信设备的位置、速度、意图等信息，其中意图信息可以为转向、并线、掉头、加速、刹车等信息或为音频、视频等信息。第二通信设备在接收到所述数据后，如果第二通信设备正确地接收了所述数据，则向第一通信设备发送ACK应答信息，此时，第一通信设备将不会再向第二通信设备发送所述数据，如果第二通信设备没有正确地接收所述数据，则向第一通信设备发送NACK应答信息，此时，第一通信设备会再次将所述数据向第二通信设备发送，则第二通信设备可以再次接收所述数据，提高了数据传输的可靠性。在V2X通信中，对低时延的要求越来越高。例如，车辆发生事故时，需要告知发生事故的车辆周边的其它车辆有事故发生和/或事故位置信息，由于事故可能在车辆高速行驶过程中发生，车辆的速度非常快，更低的时延可以使其它车辆尽早得知事故发生情况，由此，也可以尽可能给驾驶员留出更多的处理时间。又例如，在车辆编组行驶(Platooning)的 情况下，若干辆车构成一个车队，以车队为单位编组行驶，由于车辆与车辆之间间距比较小，车辆行驶的速度有比较快，因此，如果前车发生事故，后车必须在极短的时间内得知前车发生事故以及事故的地点等情况，更低的时延可以使编组车队的行驶安全性更高。
本申请所涉及到的网络设备是一种部署在无线接入网中用以为第一或第二通信设备提供无线通信功能的装置。网络设备可以为基站(Base Station，BS)，例如，宏基站，微基站，中继站或接入点等等，还可以是其它形式的设备。在采用不同的无线接入技术的系统中，具备网络设备功能的设备的名称可能会有所不同，例如，其为第五代5G网络中的网络设备或基站，在长期演进(Long Term Evolution，LTE)网络中，称为演进的节点B(evolved NodeB简称：eNB或者eNodeB),在第三代3G网络中，称为节点B(Node B)等等，或者V2X通信中的路边单元(Road Side Unit，RSU)，或者为上述网络设备或者基站内部的芯片或者片上系统(System on Chip，SOC)。为方便描述，本申请中，上述为第一或第二通信设备提供无线通信功能的装置统称为网络设备。
本申请所涉及到的第一或第二通信设备可以包括各种具有无线通信功能的设备或者此设备中的芯片或者SOC，所述具有无线通信功能的设备例如可以是，车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，移动台(Mobile station，MS)，终端(terminal)，用户设备(User Equipment，UE)等。
下面结合具体例子，以第一通信设备、第二通信设备和网络设备为例，更加详细地描述本申请的实施例。
图2为本申请实施例提供的一种上行信息的传输方法、第一通信设备、第二通信设备网络设备及系统。如图9所示，第一通信设备包括发送单元91、确定单元92以及接收单元93，其中，发送单元91与接收单元93可以由收发单元代替。如图10所示，第二通信设备包括接收单元101、确定单元102以及发送单元103，其中，接收单元101与发送单元103可以由收发单元代替。如图11所示，网络设备包括发送单元111、确定单元112以及接收单元113，发送单元111和接收单元113可以由收发单元代替。
当第一或第二通信设备为终端设备或者用户设备时，当网络设备为基站时，确定单元92、确定单元102或确定单元112可以为处理器，发送单元91、发送单元103、发送单元111、接收单元93、接收单元101、接收单元113或者收发单元可以为收发器，发送单元91、发送单元103或发送单元111可以为发射器，接收单元93、接收单元101或接收单元113可以为接收器，此收发器、发射器或接收器可以为射频电路，当第一或第二通信设备或网络设备包含存储单元时，该存储单元用于存储计算机指令，该处理器与存储器通信连接，处理器执行存储器存储的计算机指令，使第一通信设备、第二通信设备或网络设备执行图2实施例涉及的方法。其中，处理器可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(Application Specific Intergrated Circuit，ASIC)。
当第一通信设备、第二通信设备或网络设备为芯片时，所述确定单元92、确定单元102或确定单元112例如可以是处理器，发送单元91、发送单元103或发送单元111可以是输出接口、管脚或电路等，接收单元93、接收单元101或接收单元113可以是输入接口、管脚或电路等，所述收发单元例如可以是输入/输出接口、管脚或电路等。该处理单元可执行存储单元存储的计算机执行指令，以使该第一通信设备或第二通信设备内的芯片执行图2所涉及的方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存 器、缓存等，所述存储单元还可以是所述终端内的位于所述芯片外部的存储单元，如只读存储器(Read Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(Random Access Memory，RAM)等。
图2实施例所涉及的应答信息的发送和接收方法的具体步骤如下：
步骤21，第一通信设备的发送单元91在第一时间单元的第一符号集合上向第二通信设备发送数据，第二通信设备的接收单元101在第一时间单元的第一符号集合上从第一通信设备接收所述数据。其中，第一时间单元可以为子帧、时隙或者微时隙，子帧、时隙或者微时隙均包含若干数量的符号(symbol)，例如，时隙可以包含14个符号，微时隙包含7个符号。第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号，优选的，第一符号集合所包含的符号为连续的符号、第二符号集合所包含的符号也为连续的符号。所述数据可为第一通信设备的状态、位置、速度、意图等信息或为音频、视频等信息，其中状态信息可以指示事故、碰撞或其它突发状况的发生，意图信息可以为转向、并线、掉头、加速、刹车等信息。优选的，第一通信设备向第二通信设备发送的数据为小包数据，即数据量不大的数据包。当然，第一通信设备向第二通信设备发送的数据也可以是大包数据的一部分，大包数据为数据量较大的数据，例如，当第一通信设备所代表的车辆发生事故，其需要将位置信息、事故信息、事故图像、事故时频等信息发送给第二通信设备所代表的车辆，供第二通信设备或第二通信设备所代表的车辆的驾驶员来根据上述信息综合判断路况以做出处置，在这种情况下，事故图像以及事故时频并不是最急迫需要发送给第二通信设备的，因此，第一通信设备可以只将上述信息的一部分，即事故信息和位置信息在第一时间单元发送给第二通信设备，而事故图像以及事故时频等信息可以在后续的时间单元上发送，由此可以降低待发送数据的数据量，降低减少V2X通信时延的技术难度。本申请实施例对第二通信设备的数量不做限定，当只有1个第二通信设备时，第一通信设备以单播的形式向第二通信设备发送数据，当有多个第二通信设备时，这些多个第二通信设备之间为不同的通信设备，则第一通信设备以广播或组播的形式向多个第二通信设备发送数据。
步骤22，第二通信设备的发送单元103在所述第一时间单元的第二符号集合上向第一通信设备发送应答信息，第一通信设备的接收单元93在所述第一时间单元的第二符号集合上从所述第二通信设备接收所述应答信息。所述应答信息用于指示所述第二通信设备是否正确地接收所述数据，应答信息可以为ACK信息或NACK信息。可选的，此应答信息可以由数据替换，即第二通信设备的发送单元103在所述第一时间单元的第二符号集合上向第一通信设备发送数据，第一通信设备的接收单元93在所述第一时间单元的第二符号集合上从所述第二通信设备接收所述数据，此数据可以为第二通信设备的状态、位置、速度、意图等信息或为音频、视频等信息，其中状态信息可以指示事故、碰撞或其它突发状况的发生，意图信息可以为转向、并线、掉头、加速、刹车等信息。
通过本申请实施例，第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，而所述第一通信设备又在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，发送数据和接收应答信息均在第一时间单元内完成，因此，降低了V2X通信的时延。
在步骤21前，第一通信设备的发送单元91还可以在所述第一时间单元上向所述第二通信设备发送第一控制信息。此第一控制信息可以为侧行链路调度信息(Sidelink  Assignment，SA)，此SA信息可以在物理侧行控制信道(Physical Sidelink)上传输。
第一控制信息可以用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号，例如，第一控制信息指示发送数据的符号有哪些，这些用于发送数据的符号就构成了所述第一符号集合，第一控制信息还可以指示接收应答信息的符号有哪些，这些用于接收应答信息的符号就构成了所述第二符号集合。或者，第一控制信息指示了第一时间单元所包含的至少一个符号的用途，即某一个符号是用于传输数据，还是用于传输应答信息。第一控制信息还可以指示第一符号集合与第二符号集合所包含符号数量之间的差值，由此，第二通信设备根据差值以及第一时间单元所包含的符号总数量确定第一符号集合包含的符号和第二符号集合包含的符号。第一控制信息还可以指示第一符号集合包含的符号，则第二符号集合可以包含第一符号集合包含的最后一个符号后第k个符号开始的j个符号，k和j为正整数，其可以为协议预设的，也可以由网络设备通知第一或第二通信设备，例如，第一符号集合的最后一个符号为符号n，那么第二通信设备可以根据第一控制信息确定第一符号集合包含的符号，并根据符号n、k以及j确定第二符号集合包含的符号为符号n+k至符号n+k+j。
第一控制信息也可以包括x比特的信息，x为正整数，所述第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系，即x比特的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。可选的，所述x比特的第一控制信息的取值与预定义的第一符号集合包含的符号个数与第二符号集合包含的符号个数的比值具有对应关系。例如，第一控制信息为2比特的信息，所以，2比特的第一控制信息的取值可以为00、01、10、11,则如表1所示，00对应第一符号集合为符号1至符号6、第二符号集合为符号8至符号12；01对应第一符号集合为符号1至符号7、第二符号集合为符号9至符号12；10对应第一符号集合为符号1至符号8、第二符号集合为符号10至符号12；11对应第一符号集合为符号1至符号9、第二符号集合为符11至符号12。应当理解，表1仅仅是举例，x的取值、第一符号集合和第二符号集合所包含的符号可以为其它取值。由此，当第一通信设备将第一控制信息发送给第二通信设备后，第二通信设备可以根据第一控制信息的取值通过查表的方式确定第一符号集合与第二符号集合所包含的符号。第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在第一时间单元的第一符号集合所包含的符号上向所述第二通信设备发送所述数据，第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息包括：所述第一通信设备在所述第一时间单元的第二符号集合所包含的符号上从所述第二通信设备接收所述应答信息。
表1
第一控制信息的取值 第一符号集合包含的符号 第二符号集合包含的符号
00 符号1-符号6 符号8-符号12
01 符号1-符号7 符号9-符号12
10 符号1-符号8 符号10-符号12
11 符号1-符号9 符号11-符号12
可选的，第一通信设备可以从网络设备接收第一控制信息，此第一控制信息用于指示所述第一通信设备是否为发送端设备，在这种情况下，需要由通信协议预先定义第一符号集合包含哪些符号和第二符号集合包含哪些符号，当第一通信设备接收到基站发送的第一控制信息并被指示为发送端设备，则第一通信设备在协议预定义的第一符号集合上向第二通信设备发送数据，并在第二符号集合上从第二通信设备接收应答信息。
例如图3所示，第一符号集合包含符号1至符号10，第二符号集合包含符号11和符号12，第一通信设备在所述第一时间单元上向第二通信设备发送第一控制信息包括：第一通信设备在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送第一控制信息。优选的，所述第一通信设备还在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送SA信息，所述第一控制信息可以包含在SA信息中传输。所述第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在所述第一时间单元的第一符号集合的第二频域资源上向所述第二通信设备发送所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。第一通信设备可以在所述第一频域资源和第二频域资源上从第二通信设备接收应答信息。所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，所述第一符号集合与第二符号集合之间具有至少一个符号用作间隔Gap，如图3所示，AGC和Gap分别占用1个符号。
例如图4所示，第一时间单元还包括第三符号集合，所述第三符号集合用于所述第一通信设备从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号，所述第一通信设备的接收单元93在所述第三符号集合上从所述网络设备接收信息，网络设备的发送单元111在所述第三符号集合上向所述第一通信设备发送所述信息。所述信息为下行信息，具体可以为所述网络设备发送的下行数据，也可以为所述网络设备发送的下行控制信息(Downlink Control Information，DCI)。优选的，所述第三符号集合在所述第一符号集合和所述第二符号集合之前，即第一通信设备接收下行信息先于第一通信设备与第二通信设备进行V2X通信，在V2X的模式3通信中，通信设备之间的V2X通信是基于网络设备调度的，所述第三符号集合在所述第一符号集合和所述第二符号集合之前可以确保第一通信设备在一个时间单元内从网络设备接收信息以及向第二通信设备进行V2X通信，降低了第一通信设备从网路设备接收下行信息的时延。优选的，第一符号集合所包含的符号为连续的符号、第二符号集合所包含的符号为连续的符号以及第三符号集合所包含的符号为连续的符号。
在图4中，第一通信设备的发送单元91在第一符号集合上向第二通信设备发送数据，优选的，第一通信设备的发送单元在第一符号集合的第一频域资源向第二通信设备发送SA信息，并在第一符号集合的第二频域资源向第二通信设备发送数据，第二通信设备可以根据SA来解码接收到的所述数据。第一通信设备的接收单元93在第二符号集合上从第二通信设备接收应答信息，此应答信息用于指示所述第二通信设备是否正确接收所述数据。所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，所述第一符号集合与第二符号集合和第三符号集合之间分别具有至少一个符号用作间隔Gap，如图4所示，AGC和Gap分别占用1个符号。
在图4中，第一通信设备可以在所述第一时间单元上从所述网络设备接收第二控制信息，具体的第一通信设备的接收单元93可以在第一时间单元的所述第三符号集合上从 所述网络设备接收所述第二控制信息。第二控制信息可以为下行控制信息DCI。
第二控制信息可以用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号，例如，第二控制信息指示发送数据的符号有哪些，这些用于发送数据的符号就构成了所述第一符号集合，第二控制信息还可以指示接收应答信息的符号有哪些，这些用于接收应答信息的符号就构成了所述第二符号集合，第二控制信息还可以指示从网络设备接收下行信息的符号有哪些，这些用于从网络设备接收下行信息的符号就构成了第三符号集合。或者，第二控制信息指示了第一时间单元所包含的至少一个符号的用途，即某一个符号是用于传输数据，还是用于传输应答信息，抑或是用于下行信息的传输。第二控制信息还可以指示第一符号集合、第二符号集合以及第三符号集合所包含符号数量之间的差值，由此，第二通信设备根据差值以及第一时间单元所包含的符号总数量确定第一符号集合包含的符号、第二符号集合以及第三符号集合所包含的符号。第二控制信息还可以指示第一符号集合包含的符号，则第二符号集合可以包含第一符号集合包含的最后一个符号后第k个符号开始的j个符号，第三符号集合可以包含第一符号集合包含的最后一个符号后第l个符号开始的m个符号，k、j、l和m为正整数，其可以为协议预设的，也可以由网络设备通知第一或第二通信设备，例如，第一符号集合的最后一个符号为符号n，那么第二通信设备可以根据第一控制信息确定第一符号集合包含的符号，并根据符号n、k、j、l以及m确定第二符号集合包含的符号为符号n+k至符号n+k+j，确定第三符号集合包含的符号为符号n+l至符号n+l+m。
第二控制信息也可以包括y比特的信息，y为正整数，所述第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系，即y比特的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。例如，第二控制信息为3比特的信息，所以，3比特的第二控制信息的取值有8种，可以为000、001、010、011、100、101、110、111,则例如表2所示，000对应第一符号集合为符号4至符号9、第二符号集合为符号11至符号13、第三符号集合为符号0和符号1；001对应第一符号集合为符号5至符号10、第二符号集合为符号12和符号13、第三符号集合为符号0至符号2。应当理解，表2仅仅是举例，y的取值、第一符号集合、第二符号集合和第三符号集合所包含的符号可以为其它取值。由此，所述第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在第一时间单元的第一符号集合所包含的符号上向所述第二通信设备发送所述数据；所述第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息包括：所述第一通信设备在所述第一时间单元的第二符号集合所包含的符号上从所述第二通信设备接收所述应答信息；所述第一通信设备在所述第三符号集合上从所述网络设备接收信息包括：所述第一通信设备在所述第一时间单元的第三符号集合所包含的符号上从所述网络设备接收信息。
表2
Figure PCTCN2018117817-appb-000001
Figure PCTCN2018117817-appb-000002
可选的，第一通信设备可以从网络设备接收第二控制信息，此第二控制信息用于指示所述第一通信设备是否为发送端设备，在这种情况下，需要由通信协议预先定义第一符号集合包含哪些符号、第二符号集合包含哪些符号和第三符号集合包含哪些符号，当第一通信设备接收到基站发送的第一控制信息并被指示为发送端设备，则第一通信设备在协议预定义的第一符号集合上向第二通信设备发送数据，在第二符号集合上从第二通信设备接收应答信息，并在第三符号集合上从网络设备接收下行信息。
例如图5所示，第一时间单元还包括第四符号集合，所述第四符号集合用于所述第一通信设备向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号，所述第一通信设备的发送单元91在所述第四符号集合上向所述网络设备发送信息，所述网络设备的接收单元113在所述第四符号集合上从所述第一通信设备接收所述信息。所述信息为上行信息，具体可以为第一通信设备向网络设备发送的上行数据，也可以为第一通信设备向网络设备发送的上行控制信息(Uplink Control Information，UCI)。优选的，所述第四符号集合在所述第一符号集合、所述第二符号集合和所述第三符号集合之后，即第一通信设备向网络设备发送上行信息晚于第一通信设备与第二通信设备进行V2X通信，由此第一通信设备在V2X通信完毕后可以在一个时间单元内完成向网络设备发送上行信息，降低了发送上行信息的时延。优选的，第一符号集合所包含的符号为连续的符号、第二符号集合所包含的符号为连续的符号、第三符号集合所包含的符号为连续的符号以及第四符号集合所包含的符号为连续的符号。如图4所示，第一时间单元可以包含第一、第二、和第三符号集合，如图6所示，第一时间单元也可以包含第一、第二和第四符号集合，如图5所示，第一时间单元也可以包含第一至第四符号集合。
在图6中，第一通信设备在所述第一时间单元上从所述网络设备接收第三控制信息，所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号。例如，第三控制信息指示发送数据的符号有哪些，这些用于发送数据的符号就构成了所述第一符号集合，第二控制信息还可以指示接收应答信息的符号有哪些，这些用于接收应答信息的符号就构成了所述第二符号集合，第三控制信息还可以指示向网络设备发送上行信息的符号有哪些，这些用于向网络设备发送上行信息的符号就构成了第三符号集合。或者，第三控制信息指示了第一时间单元所包含的至少一个符号的用途，即某一个符号是用于传输数据，还是用于传输应答信息，抑或是用于上行信息的传输。当然，也可以如图5所示，所述第三控制信息还用 于指示所述第三符号集合所包含的符号，例如第三控制信息除了指示第一、第二、第四符号集合，还可以指示从网络设备接收下行信息的符号有哪些，这些用于从网络设备接收下行信息的符号就构成了第三符号集合。第三控制信息还可以指示第一符号集合、第二符号集合、第三符号集合以及第四符号集合所包含符号数量之间的差值，由此，第二通信设备根据差值以及第一时间单元所包含的符号总数量确定第一符号集合包含的符号、第二符号集合、第三符号集合以及第四符号集合所包含的符号。第三控制信息还可以指示第一符号集合包含的符号，则第二符号集合可以包含第一符号集合包含的最后一个符号后第k个符号开始的j个符号，第三符号集合可以包含第一符号集合包含的最后一个符号后第l个符号开始的m个符号，第三符号集合可以包含第一符号集合包含的最后一个符号后第p个符号开始的q个符号，k、j、l、m、p和q为正整数，其可以为协议预设的，也可以由网络设备通知第一或第二通信设备，例如，第一符号集合的最后一个符号为符号n，那么第二通信设备可以根据第一控制信息确定第一符号集合包含的符号，并根据符号n、k、j、l、m、p以及q确定第二符号集合包含的符号为符号n+k至符号n+k+j，确定第三符号集合包含的符号为符号n+l至符号n+l+m，确定第三符号集合包含的符号为符号n+p至符号n+p+q。
第三控制信息也可以包括z比特的信息，z为正整数，所述第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系，即z比特的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。当然，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。Z比特的第三控制信息的取值与第一至第四符号集合所包含的符号的对应关系可以由类似于表1或表2的形式规定，此处不再赘述例子。第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间可以具有至少一个符号用作间隔Gap，当然也可以没有Gap。
第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在第一时间单元的第一符号集合所包含的符号上向所述第二通信设备发送所述数据。所述第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息包括：所述第一通信设备在所述第一时间单元的第二符号集合所包含的符号上从所述第二通信设备接收所述应答信息。所述第一通信设备在所述第四符号集合上向所述网络设备发送信息包括：所述第一通信设备在所述第一时间单元的第四符号集合所包含的符号上向所述网络设备发送信息。所述第一通信设备在所述第四符号集合上向所述网络设备发送信息包括：所述第一通信设备在所述第一时间单元的第四符号集合所包含的符号上向所述网络设备发送信息。
可选的，第一通信设备可以从网络设备接收第三控制信息，此第三控制信息用于指示所述第一通信设备是否为发送端设备，在这种情况下，需要由通信协议预先定义第一符号集合包含哪些符号、第二符号集合包含哪些符号、第三符号集合包含哪些符号和/或第四符号集合包含哪些符号，当第一通信设备接收到基站发送的第一控制信息并被指示为发送端设备，则第一通信设备在协议预定义的第一符号集合上向第二通信设备发送数 据，在第二符号集合上从第二通信设备接收应答信息，在第三符号集合上从网络设备接收下行信息，并在第四符号集合上向网络设备发送上行信息。第一控制信息还可以用于指示第五符号集合，所述第五符号集合被所述第一通信设备选择用于向所述第二通信设备发送数据，或用于从所述第二通信设备接收应答信息，或用于向网络设备发送信息，或用于从网络设备接收信息，即可以理解为第五符号集合是用于侧行链路接收信息、侧行链路发送信息、上行信息传输或下行信息传输等多种类型的信息传输。第五符号集合具体用于那种类型的信息传输，可以为第一通信设备自主灵活选择，也可以由网络设备调度使用。例如图7所示，第五符号集合可以被第一通信设备选择用于向网络设备发送上行信息，或者例如图8所示，第五符号集合可以被第一通信设备选择用于从第二通信设备接收应答信息。本申请实施例的第一时间单元可以包含第一符号集合至第五符号集合中的至少一个符号集合。
第一通信设备在所述第一时间单元上从所述网络设备接收第四控制信息，所述第四控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第四符号集合所包含的符号和所述第五符号集合所包含的符号中至少一个符号集合所包含的符号。第四控制信息的具体形式与前述实施例相同。例如，第四控制信息指示第一至第五符号集合包含的符号有哪些，或第四控制信息包括w比特的信息，w为正整数，所述第四控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号、所述第四符号集合所包含的符号和所述第五符号集合所包含的符号具有对应关系，即w比特的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号、所述第四符号集合所包含的符号和所述第五符号集合所包含的符号具有对应关系。
图3至图8所示的传输SA的资源与传输数据的资源为频分复用的，可选的，传输SA的资源与传输数据的资源也可以为时分复用的，即第一通信设备在第一符号集合的第一部分符号上向第二通信设备发送SA，第一通信设备在第一符号集合的第二部分符号上向第二通信设备发送数据，第一部分符号包含若干符号，第二部分符号也包含若干符号，第一部分符号与第二部分符号不包含相同的符号。
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仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个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。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (41)

  1. 一种应答信息的接收方法，其特征在于，包括：
    第一通信设备在第一时间单元的第一符号集合上向第二通信设备发送数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；
    所述第一通信设备在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备在所述第一时间单元上向所述第二通信设备发送第一控制信息；
    所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或
    所述第一控制信息为x比特的信息，x为正整数，所述第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
  3. 根据权利要求2任意一项所述的方法，其特征在于，
    所述第一通信设备在所述第一时间单元上向第二通信设备发送第一控制信息包括：第一通信设备在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送第一控制信息；
    所述第一通信设备在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述第一通信设备在所述第一时间单元的第一符号集合的第二频域资源上向所述第二通信设备发送所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
  4. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述第一通信设备从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；
    所述第一通信设备在所述第三符号集合上从所述网络设备接收信息。
  5. 根据权利要求4所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备在所述第一时间单元上从所述网络设备接收第二控制信息；
    所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或
    所述第二控制信息为y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
  6. 根据权利要求1或4任意一项所述的方法，其特征在于，
    所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述第一通信设备向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；
    所述第一通信设备在所述第四符号集合上向所述网络设备发送信息。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备在所述第一时间单元上从所述网络设备接收第三控制信息；
    所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第三控制信息还用于指示所述第三符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  9. 根据权利要求1-8任意一项所述的方法，其特征在于，
    所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
  10. 根据权利要求1-9任意一项所述的方法，其特征在于，
    所述第一时间单元为时隙或微时隙。
  11. 一种第一通信设备，其特征在于，包括：
    发送单元，用于在第一时间单元的第一符号集合上向第二通信设备发送数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；
    接收单元，用于在所述第一时间单元的第二符号集合上从所述第二通信设备接收应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
  12. 根据权利要求11所述的第一通信设备，其特征在于，
    所述发送单元，还用于在所述第一时间单元上向所述第二通信设备发送第一控制信息；
    所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或
    所述第一控制信息为x比特的信息，x为正整数，所述第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
  13. 根据权利要求12任意一项所述的第一通信设备，其特征在于，
    所述发送单元在所述第一时间单元上向第二通信设备发送第一控制信息包括：所述发送单元在第一时间单元的第一符号集合的第一频域资源上向第二通信设备发送第一控制信息；
    所述发送单元在第一时间单元的第一符号集合上向所述第二通信设备发送数据包括：所述发送单元在所述第一时间单元的第一符号集合的第二频域资源上向所述第二通信设备发送所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
  14. 根据权利要求11所述的第一通信设备，其特征在于，
    所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述接收单元从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；
    所述接收单元，还用于在所述第三符号集合上从所述网络设备接收信息。
  15. 根据权利要求14所述的第一通信设备，其特征在于，
    所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第二控制信息；
    所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或
    所述第二控制信息为y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
  16. 根据权利要求11或14任意一项所述的第一通信设备，其特征在于，
    所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述发送单元向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；
    所述发送单元，还用于在所述第四符号集合上向所述网络设备发送信息。
  17. 根据权利要求16所述的第一通信设备，其特征在于，
    所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第三控制信息；
    所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  18. 根据权利要求17所述的第一通信设备，其特征在于，
    所述第三控制信息还用于指示所述第三符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  19. 根据权利要求11-18任意一项所述的第一通信设备，其特征在于，
    所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
  20. 根据权利要求11-19任意一项所述的第一通信设备，其特征在于，
    所述第一时间单元为时隙或微时隙。
  21. 一种应答信息的发送方法，其特征在于，包括：
    第二通信设备在第一时间单元的第一符号集合上从第一通信设备接收数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；
    所述第二通信设备在所述第一时间单元的第二符号集合上向所述第一通信设备发送应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
  22. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备在所述第一时间单元上从所述第一通信设备接收第一控制信息；
    所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或
    所述第一控制信息包括x比特的信息，x为正整数，所述x比特的第一控制信息的取 值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
  23. 根据权利要求22任意一项所述的方法，其特征在于，
    所述第二通信设备在所述第一时间单元上从第一通信设备接收第一控制信息包括：第二通信设备在第一时间单元的第一符号集合的第一频域资源上从第一通信设备接收第一控制信息；
    所述第二通信设备在第一时间单元的第一符号集合上从所述第一通信设备接收数据包括：所述第二通信设备在所述第一时间单元的第一符号集合的第二频域资源上从所述第一通信设备接收所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
  24. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述第二通信设备从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；
    所述第二通信设备在所述第三符号集合上从所述网络设备接收信息。
  25. 根据权利要求24所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备在所述第一时间单元上从所述网络设备接收第二控制信息；
    所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或
    所述第二控制信息包括y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
  26. 根据权利要求21或24任意一项所述的方法，其特征在于，
    所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述第二通信设备向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；
    所述第二通信设备在所述第四符号集合上向所述网络设备发送信息。
  27. 根据权利要求26所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备在所述第一时间单元上从所述网络设备接收第三控制信息；
    所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  28. 根据权利要求27所述的方法，其特征在于，所述方法还包括：
    所述第三控制信息还用于指示所述第三符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  29. 根据权利要求21-28任意一项所述的方法，其特征在于，
    所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC 信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
  30. 根据权利要求21-29任意一项所述的方法，其特征在于，
    所述第一时间单元为时隙或微时隙。
  31. 一种第二通信设备，其特征在于，包括：
    接收单元，用于在第一时间单元的第一符号集合上从第一通信设备接收数据，其中，所述第一时间单元包括第一符号集合和第二符号集合，所述第一符号集合与所述第二符号集合不包含相同的符号；
    发送单元，用于在所述第一时间单元的第二符号集合上向所述第一通信设备发送应答信息，所述应答信息用于指示所述第二通信设备是否正确地接收所述数据。
  32. 根据权利要求31所述的第二通信设备，其特征在于，
    所述接收单元，还用于在所述第一时间单元上从所述第一通信设备接收第一控制信息；
    所述第一控制信息用于指示所述第一符号集合所包含的符号和所述第二符号集合所包含的符号；或
    所述第一控制信息包括x比特的信息，x为正整数，所述x比特的第一控制信息的取值与预定义的所述第一符号集合所包含的符号和所述第二符号集合所包含的符号具有对应关系。
  33. 根据权利要求32任意一项所述的第二通信设备，其特征在于，
    所述接收单元在所述第一时间单元上从第一通信设备接收第一控制信息包括：所述接收单元在第一时间单元的第一符号集合的第一频域资源上从第一通信设备接收第一控制信息；
    所述接收单元在第一时间单元的第一符号集合上从所述第一通信设备接收数据包括：所述接收单元在所述第一时间单元的第一符号集合的第二频域资源上从所述第一通信设备接收所述数据，所述第一频域资源与所述第二频域资源为不同的频域资源。
  34. 根据权利要求31所述的第二通信设备，其特征在于，
    所述第一时间单元还包括第三符号集合，所述第三符号集合用于所述接收单元从网络设备接收信息，所述第三符号集合与所述第一符号集合和所述第二符号集合不包含相同的符号；
    所述接收单元，还用于在所述第三符号集合上从所述网络设备接收信息。
  35. 根据权利要求34所述的第二通信设备，其特征在于，
    所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第二控制信息；
    所述第二控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号；或
    所述第二控制信息包括y比特的信息，y为正整数，所述y比特的第二控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第三符号集合所包含的符号具有对应关系。
  36. 根据权利要求31或34任意一项所述的第二通信设备，其特征在于，
    所述第一时间单元还包括第四符号集合，所述第四符号集合用于所述发送单元向所述网络设备发送信息，所述第四符号集合与所述第一符号集合、所述第二符号集合和所述第三符号集合不包含相同的符号；
    所述发送单元，还用于在所述第四符号集合上向所述网络设备发送信息。
  37. 根据权利要求36所述的第二通信设备，其特征在于，
    所述接收单元，还用于在所述第一时间单元上从所述网络设备接收第三控制信息；
    所述第三控制信息用于指示所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、和所述第四符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  38. 根据权利要求37所述的第二通信设备，其特征在于，
    所述第三控制信息还用于指示所述第三符号集合所包含的符号；或
    所述第三控制信息包括z比特的信息，z为正整数，所述z比特的第三控制信息的取值与预定义的所述第一符号集合所包含的符号、所述第二符号集合所包含的符号、所述第三符号集合所包含的符号和所述第四符号集合所包含的符号具有对应关系。
  39. 根据权利要求31-38任意一项所述的第二通信设备，其特征在于，
    所述第一符号集合所包含的第一个符号的前一个符号用于传输自动增益控制AGC信息，相邻的所述第一至第四符号集合之间具有至少一个符号用作间隔Gap。
  40. 根据权利要求31-39任意一项所述的第二通信设备，其特征在于，
    所述第一时间单元为时隙或微时隙。
  41. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-10或21-30任意一项所述的方法。
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CN104219023A (zh) * 2013-05-31 2014-12-17 上海朗帛通信技术有限公司 一种d2d系统中的通信方法和装置
CN107113108A (zh) * 2014-07-31 2017-08-29 微软技术许可有限责任公司 用于支持设备对设备通信的用户设备蜂窝反馈传输
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