WO2020107424A1 - 一种d2d通信中信道质量测量方法及终端 - Google Patents

一种d2d通信中信道质量测量方法及终端 Download PDF

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Publication number
WO2020107424A1
WO2020107424A1 PCT/CN2018/118643 CN2018118643W WO2020107424A1 WO 2020107424 A1 WO2020107424 A1 WO 2020107424A1 CN 2018118643 W CN2018118643 W CN 2018118643W WO 2020107424 A1 WO2020107424 A1 WO 2020107424A1
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WO
WIPO (PCT)
Prior art keywords
terminal
message
data
channel quality
pdu
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/118643
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English (en)
French (fr)
Inventor
卢前溪
赵振山
林晖闵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2018/118643 priority Critical patent/WO2020107424A1/zh
Priority to PCT/CN2019/075121 priority patent/WO2020107713A1/zh
Priority to PCT/CN2019/085897 priority patent/WO2020107807A1/zh
Priority to CN201980037525.3A priority patent/CN112262587B/zh
Publication of WO2020107424A1 publication Critical patent/WO2020107424A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of information processing technology, and in particular, to a channel quality measurement method, terminal, chip, computer-readable storage medium, computer program product, and computer program in D2D communication.
  • the IoV system is a sidelink transmission technology (SL, Sidelink) based on Long-Term Evolution Terminal-to-Terminal (LTE-D2D, LongTerm-Evaluation-Device to Device).
  • LTE-D2D Long-Term Evolution Terminal-to-Terminal
  • LTE-Evaluation-Device to Device Long-Term Evolution Terminal-to-Terminal
  • 3GPP Third Generation Partnership Project
  • Rel-14 the Internet of Vehicles technology
  • Mode 3 and Mode 4 Two transmission modes were defined: Mode 3 and Mode 4.
  • Rel-16 V2X needs to support unicast, and link measurement is very important for unicast. Therefore, how to complete link measurement in a contention-based resource set is a problem that needs to be solved.
  • embodiments of the present invention provide a channel quality measurement method, terminal, chip, computer-readable storage medium, computer program product, and computer program in D2D communication.
  • a method for measuring channel quality in D2D communication which is applied to a first terminal and includes:
  • the first message is generated when the first terminal meets the first trigger condition; wherein the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal;
  • the first terminal performs D2D communication with the second terminal;
  • a method for measuring channel quality in D2D communication for a second terminal. The method includes:
  • the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal; the first terminal performs D2D communication with the second terminal.
  • a first terminal including:
  • the first processing unit generates a first message when the first trigger condition is satisfied; wherein the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal;
  • the first terminal performs D2D communication with the second terminal;
  • the first communication unit sends the first message to the second terminal.
  • a second terminal including:
  • the second communication unit receives the first message sent by the first terminal
  • the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal; the first terminal performs D2D communication with the second terminal.
  • a terminal including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the methods in the first aspect, the second aspect, or the respective implementations thereof.
  • a chip is provided for implementing any one of the above-mentioned first to second aspects or the method in each of the implementations thereof.
  • the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes any one of the first aspect to the second aspect described above or its respective implementations method.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the above first to second aspects or the various implementations thereof.
  • a computer program product including computer program instructions, which cause the computer to execute the method in any one of the above first to second aspects or various implementations thereof.
  • a computer program which when run on a computer, causes the computer to execute the method in any one of the above first to second aspects or the respective implementations thereof.
  • the technical solution of the embodiment of the present invention can enable the first terminal and the second terminal in the D2D communication scenario to trigger channel quality measurement according to the first message transmitted by the two, or directly feed back the channel to the second terminal Quality information.
  • the terminal in D2D communication can be assisted in determining the quality of the link, and link measurement can be completed in a contention-based resource set.
  • FIG. 1 is a schematic diagram 1 of a D2D communication system architecture provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram 2 of a D2D communication system architecture provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart 1 of a channel quality measurement method in D2D communication according to an embodiment of the present invention
  • FIG. 4 is a second schematic flowchart of a channel quality measurement method in D2D communication according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a composition of a first terminal according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a composition of a second terminal according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a composition of a communication device according to an embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • the solution provided by the embodiment of the present application can be applied to the Internet of Vehicles system provided in FIGS. 1 and 2, which is a side chain based on LTE-device-to-device (D2D) Road transmission technology (SL, Sidelink, sidelink) has higher spectral efficiency and lower transmission delay.
  • D2D LTE-device-to-device
  • SL, Sidelink, sidelink Road transmission technology
  • V2X Internet of Vehicles technology
  • the transmission resources of the terminal device that is, the vehicle-mounted terminal is allocated by the base station, and the vehicle-mounted terminal transmits data on the side link according to the resources allocated by the base station; the base station can allocate a single
  • the resources for secondary transmission can also be allocated to the terminal for semi-static transmission.
  • Mode 4 As shown in FIG. 2, the vehicle-mounted terminal adopts a transmission method of sensing+reservation. The vehicle-mounted terminal obtains a set of available transmission resources by listening in the resource pool, and the terminal randomly selects a resource from the set for data transmission.
  • An embodiment of the present invention provides a method for measuring channel quality in D2D communication, which is applied to a first terminal. As shown in FIG. 3, the method includes:
  • Step 101 The first message is generated when the first terminal meets the first trigger condition; wherein, the first message is used for channel quality measurement by the second terminal, or the first message is used for feedback of the channel to the second terminal Quality information; the first terminal performs D2D communication with the second terminal;
  • Step 102 Send a first message to the second terminal.
  • the first message includes at least a reference signal, where the reference signal is used for channel quality measurement.
  • the first message may include only the reference signal, or may include the reference signal and other data content.
  • the first message contains only the reference signal
  • it may be sent to the second terminal as long as there is the first message, that is, regardless of whether other data is currently sent to the second terminal
  • the generated first message is sent separately to the second terminal. At this time, it can be understood that the first message is sent and processed only at the bottom layer.
  • the first message contains not only the scenario of the reference signal, but can also be sent by combining the first message with other data, for example, the current high layer determines the data to be sent to the second terminal, and then puts the first message on It can be understood as sending the first message by appending or pasting it to other data.
  • the first trigger condition may be: the first timer times out.
  • the first timer can be preset in the first terminal in advance, and the initial value is set to 0.
  • a first timing threshold can be set.
  • the limit value is determined, it is determined that the first timer times out; or, the initial value can be set to the value of the first timing threshold, for example, it can be 30ms or 10ms or 1s, and then when the first timer is started or restarted After that, its value gradually decreases until it decreases to 0, and it is determined that the first timer times out.
  • control methods for starting or restarting the first timer include:
  • the first timer is started or restarted.
  • the first timer starts timing; or, when the first terminal receives data from the second terminal, the first timer starts timing. It is determined according to the actual situation that one of the above two control methods or both methods can be used in combination, which is not limited in this embodiment.
  • the first timer originally keeps the initial value, that is, the first timer originally counted as 0, and if data from the second terminal is received Or when sending data to the second terminal, determine to start timing from 0;
  • the first timer is already in the timing state, for example, it has already started to send data to the second terminal, and then sends data to the second terminal again.
  • the value is cleared and restarted, restarting timing from 0.
  • the first timer may be started because the first terminal started to send data, the first timer starts to start timing, and then when the first terminal receives the data sent by the second terminal, the first timer may be started The device restarts and restarts timing.
  • the data includes at least one of the following: data transmitted by PSCCH, data transmitted by PSSCH, data transmitted by PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU, reference signal.
  • the sending the first message to the second terminal includes:
  • N first messages are sent to the second terminal; where N is an integer greater than or equal to 1.
  • the first period can be set according to the actual situation, for example, it can be set to 20 ms or longer, such as 1 s, and this embodiment does not exhaustively.
  • N can also be set according to the actual situation, for example, N may be 4, or may be 2. That is to say, two first messages can be sent to the second terminal within 20ms, and of course, four first messages can be sent within one second, which will not be repeated here.
  • sending N first messages to the second terminal includes:
  • N first messages are sent to the second terminal; where M is an integer greater than or equal to N.
  • the time-frequency resource is configured by the network side, or configured by the second terminal, or pre-configured by the first terminal.
  • the location of the time-frequency resources can be configured by the network side, such as the base station, for the terminal.
  • the time-frequency resources can be configured for the first terminal and the second terminal for the base station side, so that the first terminal knows Which time-frequency resource locations can send the first message, or can also enable the second terminal to know at which time-frequency resource locations the first message can be received.
  • the location of the time-frequency resource can be configured by the second terminal, and the configuration method can be that when the first terminal and the second terminal communicate in the early stage, the data sent from the second terminal carries the M times Frequency resource location. In this way, the first terminal knows at which time-frequency resource positions the first message can be sent, or the second terminal can know at which time-frequency resource positions the first message can be received.
  • the second terminal may not be notified of its configuration; of course, the position of the M time-frequency resources configured by the first terminal for itself may also be notified to the second terminal, and the sending method may be portable Send to the second terminal in other transmission data, so that the second terminal can know at which time-frequency resource location the first message can be received.
  • M is an integer greater than or equal to N. That is to say, the first message may be sent in all the M time-frequency resource positions configured by the first terminal, or the first message may be sent in only part of the time-frequency resource.
  • the sending of the first message may be based on the preset M time-frequency resources, and of course may not be based on the limitation of the time-frequency resources; for example, according to the preset M time-frequency resources , That is to say, the time or frequency domain range for sending the first message is divided for the first terminal in advance. At each time and frequency domain range, you can try to send the first message to the second terminal; When the first message is sent by time-frequency resources, it may be that the first message is tried to be sent to the second terminal as soon as the first message is generated. For example, if the first period is 1s, the first message can be sent at 0.2s, 0.5s Time to send the first message again.
  • sending N first messages to the second terminal further includes:
  • the sending of N first messages is stopped. Specifically, before the end of the first cycle, if the transmission of the predetermined N first messages has not been completed, the attempt to send the first message is still kept until the end of the first cycle to stop sending the first message, or until the completion of N Stop sending the first message when sending the first message.
  • the sending of the first message can be kept until the end of the first cycle, and the sending of the first message can be stopped when all N first messages are sent. A message, or stop sending the first message until the end of the first cycle.
  • N first messages are not attempted to be sent among all the time-frequency resources of the M time-frequency resources, keep trying to continue at the next time Send the first message on the frequency resource; if you have tried to send the first message on all M time-frequency resources, and you have not finished sending N message messages, you can still keep trying to send the first message at other time-domain resource bits Message, stop sending the first message until the end of the first period, or stop sending the first message when N first messages have been sent.
  • the first message can also be feedback signal quality information to the second terminal, that is to say, there is also a scenario in this embodiment where the first terminal can receive the second terminal before step 101 A message sent for channel quality measurement.
  • the first terminal can measure channel quality according to the message, and then feed back channel quality information to the second terminal through the first message, so that the second terminal can also obtain the first The channel quality detected by the terminal.
  • the manner in which the message sent by the second terminal for channel quality measurement may be the same as the manner in which the first terminal sends the message in this embodiment, and details are not described herein again.
  • the first terminal and the second terminal in the D2D communication scenario can trigger channel quality measurement according to the first message transmitted by the two, or directly feed back the channel quality to the second terminal information.
  • the terminal in D2D communication can be assisted in determining the quality of the link, and link measurement can be completed in a contention-based resource set.
  • An embodiment of the present invention provides a channel quality measurement method in D2D communication, which is applied to a second terminal. As shown in FIG. 4, the method includes:
  • Step 201 Receive the first message sent by the first terminal
  • the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal; the first terminal performs D2D communication with the second terminal.
  • the first message includes at least a reference signal, where the reference signal is used for channel quality measurement.
  • this embodiment further includes:
  • Step 202 When the second trigger condition is satisfied, the second terminal releases the connection with the first terminal.
  • the second terminal releasing the connection with the first terminal includes: the second terminal sending a connection release message to the first terminal. That is, when it is necessary to release the connection with the first terminal, the second terminal may release the connection of the first terminal after sending the connection release message to the first terminal, or may send the connection release message to the first terminal After receiving the confirmation message fed back by the first terminal, the connection of the first terminal is released.
  • the second trigger condition includes: a second timer expires.
  • the second timer may be preset in the second terminal in advance, and the initial value is set to 0.
  • a second timing threshold may be set, and when the timing duration of the second timer reaches the second timing gate
  • the initial value can be set to the value of the second timing threshold, for example, it can be 30ms or 10ms or 1s, and then when the second timer is started or restarted After that, its value gradually decreases until it decreases to 0, and it is determined that the second timer times out.
  • control methods for starting or restarting the second timer include:
  • the second timer is started or restarted.
  • the second timer starts timing; or, when the second terminal receives data from the first terminal, the second timer starts timing. It is determined according to the actual situation that one of the above two control methods or both methods can be used in combination, which is not limited in this embodiment.
  • the second timer originally maintains the initial value, that is, the second timer originally counted as 0, and if data from the first terminal is received , Or when sending data to the first terminal, determine to start timing from 0;
  • the second timer is already in the timing state, for example, it has already started to send data to the first terminal, and then sends the data to the first terminal again.
  • the value is cleared and restarted, restarting timing from 0.
  • the second timer can be started because the second terminal started to send data, the second timer starts to start timing, and then when the second terminal receives the data sent from the first terminal, the second timer can be timed The device restarts and restarts timing.
  • the data includes at least one of the following: data transmitted by PSCCH, data transmitted by PSSCH, data transmitted by PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU, reference signal.
  • the method further includes:
  • the second terminal When the first message includes a reference signal, the second terminal performs channel measurement according to the reference signal in the first message; wherein, the reference signal is used for channel quality measurement.
  • the first message may include only the reference signal, or may include the reference signal and other data content.
  • the first message contains only the reference signal
  • it may be sent to the second terminal as long as there is the first message, that is, regardless of whether other data is currently sent to the second terminal
  • the generated first message is sent separately to the second terminal. At this time, it can be understood that the first message is sent and processed only at the bottom layer.
  • the first message contains not only the scenario of the reference signal, but can also be sent by combining the first message with other data, for example, the current high layer determines the data that needs to be sent to the second terminal, and then puts the first message on the It can be understood as sending the first message by appending or pasting it to other data.
  • the method further includes:
  • the second terminal feeds back at least one channel quality information to the first terminal at least one time-frequency resource in the second period.
  • the number of at least one time-frequency resource is greater than or equal to the amount of at least one channel quality information.
  • At least one time-frequency resource in the second cycle in this embodiment is different from the M time-frequency resources in the first cycle in the foregoing embodiment.
  • the second period can be set according to the actual situation, for example, it can be set to 20 ms or longer, such as 1 s, and this embodiment does not perform exhaustion.
  • the time-frequency resource is configured by the network side, or configured by the first terminal, or pre-configured by the second terminal.
  • the location of the time-frequency resources can be configured by the network side, such as the base station, for the terminal.
  • the time-frequency resources can be configured for the first terminal and the second terminal for the base station side, so that the first terminal knows The channel quality information can be received at which time-frequency resource locations, or the second terminal can learn the channel quality information at which time-frequency resource locations can be sent.
  • the location of the time-frequency resource may be configured by the first terminal, and the configuration method may be that when the first terminal and the second terminal communicate in the early stage, the data sent by the first terminal carries the time-frequency resource. s position. In this way, the second terminal knows at which time-frequency resource positions the channel quality information can be sent, or it can also enable the first terminal to know at which time-frequency resource positions the channel quality information can be received.
  • the first terminal When the time-frequency resource is configured by the second terminal, the first terminal may not be notified of its configuration; of course, the first terminal may also be notified of the location of the time-frequency resource configured by the first terminal for itself, and the sending method may be carried in other
  • the transmission data is sent to the first terminal, so that the first terminal can know at which time-frequency resource locations the channel quality information can be received.
  • the method may further include:
  • the second terminal keeps trying to send the channel quality information
  • the attempt to send the channel quality information is still kept until the end of the second period to stop sending the channel quality information, or until the completion of the channel quality information Stops sending the channel quality information when sending.
  • the data includes at least one of the following: PSCCH, PSSCH, PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU
  • the first terminal When the first timer expires and the first trigger condition is met, the first terminal sends a first message, where the first message includes a reference signal and is used by the second terminal to perform channel measurement.
  • the second terminal when the second terminal does not measure the reference signal from the first terminal within the time T (T is greater than the duration of the first timer), the second terminal judges that the channel is interrupted and therefore releases the connection, for example, to the first The terminal sends connection release signaling.
  • the data includes at least one of the following: PSCCH, PSSCH, PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU
  • the first terminal When the first timer expires, the first terminal sends a first message, and the first message includes a reference signal, which is used by the second terminal to perform channel measurement.
  • the second terminal measures the signal from the first terminal and attempts to send feedback at 4 predetermined time-frequency positions;
  • the second terminal continues to attempt to send channel quality feedbacks at the remaining time-frequency positions within the current 20ms period;
  • the second terminal does not continue to attempt to send channel quality feedbacks at the remaining time-frequency positions within the current 20 ms period.
  • the first terminal and the second terminal in the D2D communication scenario can trigger channel quality measurement according to the first message transmitted by the two, or directly feed back the channel quality to the second terminal information.
  • the terminal in D2D communication can be assisted in determining the quality of the link, and link measurement can be completed in a contention-based resource set.
  • An embodiment of the present invention provides a first terminal, as shown in FIG. 5, including:
  • the first processing unit 51 generates a first message when the first trigger condition is satisfied; wherein the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal ;
  • the first terminal performs D2D communication with the second terminal;
  • the first communication unit 52 sends a first message to the second terminal.
  • the first message includes at least a reference signal, where the reference signal is used for channel quality measurement.
  • the first message may include only the reference signal, or may include the reference signal and other data content.
  • the first message contains only the reference signal
  • it may be sent to the second terminal as long as there is the first message, that is, regardless of whether other data is currently sent to the second terminal
  • the generated first message is sent separately to the second terminal. At this time, it can be understood that the first message is sent and processed only at the bottom layer.
  • the first message contains not only the scenario of the reference signal, but can also be sent by combining the first message with other data, for example, the current high layer determines the data that needs to be sent to the second terminal, and then puts the first message on the It can be understood as sending the first message by appending or pasting it to other data.
  • the first trigger condition may be: the first timer times out.
  • the first timer can be preset in the first terminal in advance, and the initial value is set to 0.
  • a first timing threshold can be set.
  • the limit value is determined, it is determined that the first timer times out; or, the initial value can be set to the value of the first timing threshold, for example, it can be 30ms or 10ms or 1s, and then when the first timer is started or restarted After that, its value gradually decreases until it decreases to 0, and it is determined that the first timer times out.
  • control methods for starting or restarting the first timer include:
  • the first processing unit 51 when the first communication unit 52 sends data, starts or restarts the first timer;
  • the first timer is started or restarted.
  • the first timer starts timing; or, when data from the second terminal is received, the first timer starts timing. It is determined according to the actual situation that one of the above two control methods or both methods can be used in combination, and this embodiment is not limited.
  • the first timer originally keeps the initial value, that is, the first timer originally counted as 0, and if data from the second terminal is received Or when sending data to the second terminal, determine to start timing from 0;
  • Another situation is that the first timer is already in the timing state, for example, it has already started to send data to the second terminal, and then sends data to the second terminal again.
  • the value is cleared and restarted, restarting timing from 0.
  • the data includes at least one of the following: data transmitted by PSCCH, data transmitted by PSSCH, data transmitted by PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU, reference signal.
  • the first communication unit 52 sends N first messages to the second terminal within a first period; where N is an integer greater than or equal to 1.
  • the first period can be set according to the actual situation, for example, it can be set to 20 ms or longer, such as 1 s, and this embodiment does not exhaustively.
  • N can also be set according to the actual situation, for example, N may be 4, or may be 2. That is to say, two first messages can be sent to the second terminal within 20ms, and of course, four first messages can be sent within one second, which will not be repeated here.
  • the first communication unit 52 sends N first messages to the second terminal at M time-frequency resources in the first period; where M is an integer greater than or equal to N.
  • the time-frequency resource is configured by the network side, or configured by the second terminal, or pre-configured by the first terminal.
  • the location of the time-frequency resources can be configured by the network side, such as the base station, for the terminal.
  • the time-frequency resources can be configured for the first terminal and the second terminal for the base station side, so that the first terminal knows Which time-frequency resource locations can send the first message, or can also enable the second terminal to know at which time-frequency resource locations the first message can be received.
  • the location of the time-frequency resource can be configured by the second terminal, and the configuration method can be that when the first terminal and the second terminal communicate in the early stage, the data sent from the second terminal carries the M times Frequency resource location. In this way, the first terminal knows at which time-frequency resource positions the first message can be sent, or the second terminal can know at which time-frequency resource positions the first message can be received.
  • the second terminal may not be notified of its configuration; of course, the position of the M time-frequency resources configured by the first terminal for itself may also be notified to the second terminal, and the sending method may be portable Send to the second terminal in other transmission data, so that the second terminal can know at which time-frequency resource location the first message can be received.
  • M is an integer greater than or equal to N. That is to say, the first message may be sent in all the M time-frequency resource positions configured by the first terminal, or the first message may be sent in only part of the time-frequency resource.
  • the sending of the first message may be based on the preset M time-frequency resources, and of course may not be based on the limitation of the time-frequency resources; for example, according to the preset M time-frequency resources , That is to say, the time or frequency domain range for sending the first message is divided for the first terminal in advance. At each time and frequency domain range, you can try to send the first message to the second terminal; When the first message is sent by time-frequency resources, it may be that the first message is tried to be sent to the second terminal as soon as the first message is generated. For example, if the first period is 1s, the first message can be sent at 0.2s, 0.5s Time to send the first message again.
  • the first communication unit 52 if the transmission of N first messages is not completed before the end of the first period, the first terminal keeps trying to send the first message;
  • the sending of N first messages is stopped. Specifically, before the end of the first cycle, if the transmission of the predetermined N first messages has not been completed, the attempt to send the first message is still kept until the end of the first cycle to stop sending the first message, or until the completion of N Stop sending the first message when sending the first message.
  • the sending of the first message can be kept until the end of the first cycle, and the sending of the first message can be stopped when all N first messages are sent. A message, or stop sending the first message until the end of the first cycle.
  • N first messages are not attempted to be sent among all the time-frequency resources of the M time-frequency resources, keep trying to continue at the next time Send the first message on the frequency resource; if you have tried to send the first message on all M time-frequency resources, and you have not finished sending N message messages, you can still keep trying to send the first message at other time-domain resource bits Message, stop sending the first message until the end of the first period, or stop sending the first message when N first messages have been sent.
  • the first message may also be feedback signal quality information to the second terminal, that is to say, there is also a scenario in this embodiment where the first communication unit 52 receives the message sent by the second terminal
  • a message for channel quality measurement can be used to measure channel quality according to the message, and then channel quality information can be fed back to the second terminal through the first message, so that the second terminal can also obtain the channel quality detected by the first terminal Case.
  • the manner in which the message sent by the second terminal for channel quality measurement may be the same as the manner in which the first terminal sends the message in this embodiment, and details are not described herein again.
  • the first terminal and the second terminal in the D2D communication scenario can trigger channel quality measurement according to the first message transmitted by the two, or directly feed back the channel quality to the second terminal information.
  • the terminal in D2D communication can be assisted in determining the quality of the link, and link measurement can be completed in a contention-based resource set.
  • An embodiment of the present invention provides a second terminal, as shown in FIG. 6, including:
  • the second communication unit 61 receives the first message sent by the first terminal
  • the first message is used for channel quality measurement by the second terminal, or the first message is used for feeding back channel quality information to the second terminal; the first terminal performs D2D communication with the second terminal.
  • the first message includes at least a reference signal, where the reference signal is used for channel quality measurement.
  • the second terminal also includes:
  • the second processing unit 62 when the second trigger condition is satisfied, controls the second communication unit 61 to release the connection with the first terminal.
  • the second terminal releasing the connection with the first terminal includes: the second communication unit 61 sending a connection release message to the first terminal. That is, when it is necessary to release the connection with the first terminal, the second communication unit 61 may release the connection of the first terminal after sending a connection release message to the first terminal, or may send a connection release to the first terminal After the message, the second processing unit 62 controls the second communication unit 61 to release the connection of the first terminal after receiving the confirmation message fed back by the first terminal.
  • the second trigger condition includes: a second timer expires.
  • the second timer may be preset in the second terminal in advance, and the initial value is set to 0.
  • a second timing threshold may be set, and when the time duration of the first timer reaches the second timing gate
  • the initial value can be set to the value of the second timing threshold, for example, it can be 30ms or 10ms or 1s, and then when the second timer is started or restarted After that, its value gradually decreases until it decreases to 0, and it is determined that the second timer times out.
  • control methods for starting or restarting the second timer include:
  • the second processing unit 62 The second processing unit 62,
  • the second timer is started or restarted
  • the second timer When the second communication unit 61 receives the data sent from the first terminal, the second timer is started or restarted. That is, when data needs to be sent, the second timer starts timing; or, when data from the first terminal is received, the second timer starts timing. It is determined according to the actual situation that one of the above two control methods or both methods can be used in combination, which is not limited in this embodiment.
  • the second timer originally maintains the initial value, that is, the second timer originally counted as 0, and if data from the first terminal is received , Or when sending data to the first terminal, determine to start timing from 0;
  • the second timer is already in the timing state, for example, it has already started to send data to the first terminal, and then sends the data to the first terminal again.
  • the value is cleared and restarted, restarting timing from 0.
  • the second timer can be started because the second terminal started to send data, the second timer starts to start timing, and then when the second terminal receives the data sent from the first terminal, the second timer can be timed The device restarts and restarts timing.
  • the data includes at least one of the following: data transmitted by PSCCH, data transmitted by PSSCH, data transmitted by PSFCH, MAC data PDU, MAC control PDU, RLC data PDU, RLC control PDU, PDCP data PDU, PDCP control PDU, PC5-S PDU, reference signal.
  • the second communication unit 61 After receiving the first message from the first terminal, the second communication unit 61, when the first message contains a reference signal, the second terminal performs channeling according to the reference signal in the first message Measurement; wherein, the reference signal is used for channel quality measurement.
  • the first message may include only the reference signal, or may include the reference signal and other data content.
  • the first message contains only the reference signal
  • it may be sent to the second terminal as long as there is the first message, that is, regardless of whether other data is currently sent to the second terminal
  • the generated first message is sent separately to the second terminal. At this time, it can be understood that the first message is sent and processed only at the bottom layer.
  • the first message contains not only the scenario of the reference signal, but can also be sent by combining the first message with other data, for example, the current high layer determines the data that needs to be sent to the second terminal, and then puts the first message on the It can be understood as sending the first message by appending or pasting it to other data.
  • the second communication unit 61 feeds back at least one channel quality information to the first terminal at least one time-frequency resource in the second period.
  • the number of at least one time-frequency resource is greater than or equal to the amount of at least one channel quality information.
  • At least one time-frequency resource in the second cycle in this embodiment is different from the M time-frequency resources in the first cycle in the foregoing embodiment.
  • the second period can be set according to the actual situation, for example, it can be set to 20 ms or longer, such as 1 s, and this embodiment does not perform exhaustion.
  • the time-frequency resource is configured by the network side, or configured by the first terminal, or pre-configured by the second terminal.
  • the location of the time-frequency resources can be configured by the network side, such as the base station, for the terminal.
  • the time-frequency resources can be configured for the first terminal and the second terminal for the base station side, so that the first terminal knows The channel quality information can be received at which time-frequency resource locations, or the second terminal can learn the channel quality information at which time-frequency resource locations can be sent.
  • the location of the time-frequency resource may be configured by the first terminal, and the configuration method may be that when the first terminal and the second terminal communicate in the early stage, the data sent by the first terminal carries the time-frequency resource. s position. In this way, the second terminal knows at which time-frequency resource positions the channel quality information can be sent, or it can also enable the first terminal to know at which time-frequency resource positions the channel quality information can be received.
  • the first terminal When the time-frequency resource is configured by the second terminal, the first terminal may not be notified of its configuration; of course, the first terminal may also be notified of the location of the time-frequency resource configured by the first terminal for itself, and the sending method may be carried in other
  • the transmission data is sent to the first terminal, so that the first terminal can know at which time-frequency resource locations the channel quality information can be received.
  • the channel quality information when the channel quality information is fed back to the first terminal provided in this embodiment, it may further include:
  • the second terminal keeps trying to send the channel quality information
  • the attempt to send the channel quality information is still kept until the end of the second period to stop sending the channel quality information, or until the completion of the channel quality information Stops sending the channel quality information when sending.
  • the first terminal and the second terminal in the D2D communication scenario can trigger channel quality measurement according to the first message transmitted by the two, or directly feed back the channel quality to the second terminal information.
  • the terminal in D2D communication can be assisted in determining the quality of the link, and link measurement can be completed in a contention-based resource set.
  • FIG. 7 is a schematic structural diagram of a communication device 700 provided in an embodiment of the present application.
  • the communication device in this embodiment may be specifically the first terminal or the second terminal in the foregoing embodiment.
  • the communication device 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiments of the present application.
  • the communication device 700 may further include a memory 720.
  • the processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include antennas, and the number of antennas may be one or more.
  • the communication device 700 may specifically be a network device according to an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .
  • the communication device 700 may specifically be a terminal device or a network device according to an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. It is concise and will not be repeated here.
  • FIG. 8 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 800 shown in FIG. 8 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 800 may further include a memory 820.
  • the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiments of the present application.
  • the memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.
  • the chip 800 may further include an input interface 830.
  • the processor 810 can control the input interface 830 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 800 may further include an output interface 840.
  • the processor 810 can control the output interface 840 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • chips mentioned in the embodiments of the present application may also be referred to as system-on-chips, system chips, chip systems, or system-on-chip chips.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an existing programmable gate array (Field Programmable Gate Array, FPGA), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically Erasable programmable read only memory (Electrically, EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous) DRAM (SDRAM), double data rate synchronous dynamic random access memory (double data) SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for simplicity , Will not repeat them here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. Repeat again.
  • the computer program product may be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. , Will not repeat them here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is implemented by the mobile terminal/terminal device in performing various methods of the embodiments of the present application For the sake of brevity, I will not repeat them here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable 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 the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本发明公开了一种D2D通信中信道质量测量方法、终端、芯片、计算机可读存储介质、计算机程序产品以及计算机程序，其中方法包括：所述第一终端满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；向所述第二终端发送第一消息。

Description

一种D2D通信中信道质量测量方法及终端 技术领域
本发明涉及信息处理技术领域，尤其涉及一种D2D通信中信道质量测量方法、终端、芯片、计算机可读存储介质、计算机程序产品以及计算机程序。
背景技术
车联网系统是基于长期演进终端到终端(LTE-D2D，Long Term Evaluation-Device to Device)的一种侧行链路传输技术(SL，Sidelink,侧行链路)。在第三代合作伙伴项目(3GPP，the 3rd Generation Partnership Project)Rel-14中对车联网技术(V2X)进行了标准化，定义了两种传输模式：模式3和模式4。在Rel-16中，V2X要支持单播，链路测量对于单播来说很重要，因此如何在基于竞争的资源集合中完成链路测量的工作是需要解决的问题。
发明内容
为解决上述技术问题，本发明实施例提供了一种D2D通信中信道质量测量方法、终端、芯片、计算机可读存储介质、计算机程序产品以及计算机程序。
第一方面，提供了D2D通信中信道质量测量方法，应用于第一终端，包括：
所述第一终端满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
向所述第二终端发送第一消息。
第二方面，提供了一种D2D通信中信道质量测量方法，应用于第二终端，所述方法包括：
接收第一终端发来的第一消息；
其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
第三方面，提供了一种第一终端，包括：
第一处理单元，满足第一触发条件时产生第一消息；其中，所述第一 消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
第一通信单元，向所述第二终端发送第一消息。
第四方面，提供了一种第二终端，包括：
第二通信单元，接收第一终端发来的第一消息；
其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
第五方面，提供了一种终端，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面、第二方面或其各实现方式中的方法。
第六方面，提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第七方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
本发明实施例的技术方案，就能够使得在D2D通信场景中的第一终端以及第二终端，根据两者传输的第一消息，来触发进行信道质量的测量，或者直接向第二终端反馈信道质量信息。如此，就能够辅助D2D通信中的终端确定链路的质量，实现了在基于竞争的资源集合中完成链路测量。
附图说明
图1是本申请实施例提供的一种D2D通信系统架构的示意性图一；
图2是本申请实施例提供的一种D2D通信系统架构的示意性图二；
图3为本发明实施例提供的一种D2D通信中信道质量测量方法流程示意图一；
图4为本发明实施例提供的一种D2D通信中信道质量测量方法流程示意图二；
图5为本发明实施例一种第一终端组成结构示意图；
图6为本发明实施例一种第二终端组成结构示意图；
图7为本发明实施例提供的一种通信设备组成结构示意图；
图8是本申请实施例提供的一种芯片的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例提供的方案，可以应用于图1、2所提供的车联网系统中，所述车辆网系统为基于LTE-设备到设备(D2D，Device-to-Device)的一种侧行链路传输技术(SL，Sidelink,侧行链路)，具有更高的频谱效率以及更低的传输时延。在3GPP Rel-14中对车联网技术(V2X)进行了标准化，定义了两种传输模式：模式3和模式4。其中，模式3：如图1所示，终端设备，即车载终端的传输资源是由基站分配的，车载终端根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端分配单次传输的资源，也可以为终端分配半静态传输的资源。模式4：如图2所示，车载终端采用侦听(sensing)+预留(reservation)的传输方式。车载终端在资源池中通过侦听的方式获取可用的传输资源集合，终端从该集合中随机选取一个资源进行数据的传输。
应理解，本文中术语“系统”或“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
实施例一、
本发明实施例提供了一种D2D通信中信道质量测量方法，应用于第一终端，如图3所示，所述方法包括：
步骤101：所述第一终端满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
步骤102：向所述第二终端发送第一消息。
具体来说，前述步骤101中，所述第一消息中，至少包括参考信号，其中，所述参考信号用于信道质量测量。
具体来说，所述第一消息中，可以仅包含参考信号，也可以包括参考信号以及其他数据内容。
其中，所述第一消息中仅包含参考信号的场景中，可以为只要有第一消息，就向第二终端发送，也就是说，不论当前是否有向第二终端发送的其他数据，均可以将生成的第一消息单独发送给第二终端，此时，可以理解为，仅在底层进行第一消息的发送处理。
第一消息中不仅包含参考信号的场景，可以为将第一消息与其他数据结合在一起进行发送，比如，当前高层确定了需要向第二终端发送的数据，然后将第一消息放在所要发送的数据结构中进行发送，可以理解为将第一消息附加或者贴在其他数据进行发送。
前述步骤101中，所述第一触发条件可以为：第一计时器超时。
其中，第一计时器可以提前预设在第一终端中，并且初始值设置为0，此时，可以设置一个第一计时门限值，当第一计时器的计时时长达到该第一计时门限值的时候，确定为第一计时器超时；或者，还可以将初始值设置为第一计时门限值的数值，比如，可以为30ms或者10ms或者1s，然后当第一计时器开启或重启后，其数值逐渐减少，直至减少至0的时候，确定为第一计时器超时。
第一计时器启动、或者重启的控制方式包括：
当第一终端发送数据时，启动或重启所述第一计时器；
和/或，
当所述第一终端接收到第二终端发来的数据时，启动或重启所述第一计时器。
也就是说，第一终端需要发送数据的时候，第一计时器开始计时；或者，第一终端接收到第二终端的数据的时候，第一计时器开始计时。根据实际情况来确定采用上述两种控制方式中的一种、或者两种方式均可以结合使用，本实施例不进行限定。
需要理解的是，前述第一计时器开始计时可以存在两种情况，一种就是第一计时器原来保持初始值，即第一计时器原来计时为0，若接收到第二终端发来的数据、或者向第二终端发送数据的时候，确定开始从0计时；
还有一种情况就是，第一计时器原来已经处于计时状态中，比如原来已经向第二终端开始发送数据了，然后再次向第二终端发送数据，可以将已经开始计时的第一计时器中的数值清零重新启动，重新开始从0计时。或者，还可以为第一计时器原来启动是由于第一终端开始发送数据了，第一计时器启动开始计时，然后第一终端接收到第二终端发来的数据的时候，可以将第一计时器重启重新开始计时。
具体来说，所述数据包括以下至少一种：PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
前述步骤102中，所述向所述第二终端发送第一消息，包括：
在第一周期内，向所述第二终端发送N个第一消息；其中，N为大于等于1的整数。
其中，第一周期可以根据实际情况进行设置，比如可以设置为20ms或者更长比如1s，本实施例不进行穷举。
N的数量也可以根据实际情况进行设置，比如，N可以为4、或者可以为2。也就是说，在20ms内可以向第二终端发送2个第一消息，当然也可以为在1s内发送4个第一消息，不再赘述。
进一步地，所述在第一周期内，向所述第二终端发送N个第一消息，包括：
在第一周期内的M个时频资源处，向所述第二终端发送N个第一消息；其中，M为大于或等于N的整数。
所述时频资源由网络侧配置、或者、由第二终端配置、或者、由第一终端预配置。
也就是说，时频资源的位置，可以由网络侧比如基站为终端进行配置，此时，可以为基站侧为第一终端以及第二终端均进行配置时频资源，以使得第一终端获知在哪些时频资源位置处可以发送第一消息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
另外，时频资源的位置可以由第二终端进行配置，其配置的方式可以为第一终端与第二终端在前期通信的时候，获得第二终端发来的数据中携带有所述M个时频资源的位置。如此，使得第一终端获知在哪些时频资源位置处可以发送第一消息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
当时频资源由第一终端配置的时候，可以不通知第二终端其配置；当然还可以将第一终端为自身配置的M个时频资源的位置通知给第二终端，其发送方式可以为携带在其他传输数据中向第二终端发送，如此可以使得第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
M为大于或等于N的整数也就是说，第一终端配置的M个时频资源位置上可以全部发送第一消息，也可以仅有部分时频资源处发送第一消息。
还需要指出的是，发送第一消息可以为根据预设的M个时频资源来发送，当然还可以不基于时频资源的限定来发送；比如，根据预设的M个时频资源来发送，也就是说预先为第一终端划分好了发送第一消息的时间或频域范围，在每一个时间以及频域范围内均可以尝试向第二终端发送第一消息；而不根据预设的时频资源发送第一消息的情况中，可以为只要产生了第一消息就开始尝试向第二终端发送，比如，若第一周期为1s时，可以0.2s时发送第一消息，0.5s的时候再发送一次第一消息。
所述在第一周期内，向所述第二终端发送N个第一消息，还包括：
若在所述第一周期结束前、未完成N个第一消息的发送，则所述第一终端保持尝试发送所述第一消息；
或者，
若在所述第一周期结束前、完成N个第一消息的发送，则停止发送所述第一消息。具体来说，在第一周期结束前，若没有完成预定的N个第一消息的发送，则仍然保持尝试发送第一消息，直至第一周期结束的时候停止发送第一消息、或者直至完成N个第一消息的发送的时候停止发送所述第一消息。
换句话说，可以理解为若没有设置M个时频资源的时候，可以在第一周期没有结束的时候，一直保持发送第一消息的发送，直至完全N个第一消息发送的时候停止发送第一消息、或者直至第一周期结束的时候停止第一消息的发送。
或者，若设置了M个时频资源，则可以为第一周期结束前，若未在M个时频资源的全部时频资源中尝试发送N个第一消息的时候，继续保持尝试在下一个时频资源上发送第一消息；若已经在全部M个时频资源上尝试发送第一消息，仍没有完成发送N个消息消息的时候，可以仍然在其他时域资源位时处保持尝试发送第一消息，直至第一周期结束停止发送第一消息、或者直至完成N个第一消息的发送时停止发送第一消息。
最后还需要说明的是，第一消息还可以为向第二终端反馈信号质量信息，也就是说，本实施例还存在一种场景就是，第一终端可以在步骤101之前，接收到第二终端发来的用于进行信道质量测量的消息，第一终端可以根据该消息进行信道质量的测量，进而通过第一消息向第二终端反馈信道质量信息，从而可以使得第二终端也能够获得第一终端检测到的信道质量的情况。
其中，关于第二终端发来用于进行信道质量测量的消息的方式可以与本实施例中前述第一终端发送该消息的方式相同，这里不再进行赘述。
可见，通过采用上述方案，就能够使得在D2D通信场景中的第一终端以及第二终端，根据两者传输的第一消息，来触发进行信道质量的测量，或者直接向第二终端反馈信道质量信息。如此，就能够辅助D2D通信中的终端确定链路的质量，实现了在基于竞争的资源集合中完成链路测量。
实施例二、
本发明实施例提供了一种D2D通信中信道质量测量方法，应用于第二终端，如图4所示，所述方法包括：
步骤201：接收第一终端发来的第一消息；
其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
所述第一消息中，至少包括参考信号，其中，所述参考信号用于信道质量测量。
进一步地，结合图5，本实施例还包括：
步骤202：当满足第二触发条件时，所述第二终端释放与第一终端的连接。
其中，所述第二终端释放与第一终端的连接，包括：所述第二终端向所述第一终端发送连接释放消息。也就是说，当需要释放与第一终端的连接的时候，第二终端可以向第一终端发送连接释放消息之后，释放第一终端的连接，或者，可以为向第一终端发送连接释放消息后，接收到第一终端反馈的确认消息后释放第一终端的连接。
所述第二触发条件包括：第二计时器超时。
其中，第二计时器可以提前预设在第二终端中，并且初始值设置为0，此时，可以设置一个第二计时门限值，当第二计时器的计时时长达到该第二计时门限值的时候，确定为第二计时器超时；或者，还可以将初始值设置为第二计时门限值的数值，比如，可以为30ms或者10ms或者1s，然后当第二计时器开启或重启后，其数值逐渐减少，直至减少至0的时候，确定为第二计时器超时。
第二计时器启动、或者重启的控制方式包括：
当第二终端发送数据时，启动或重启所述第二计时器；
或者，
当所述第二终端接收到第一终端发来的数据时，启动或重启所述第二计时器。
也就是说，第二终端需要发送数据的时候，第二计时器开始计时；或者，第二终端接收到第一终端的数据的时候，第二计时器开始计时。根据实际情况来确定采用上述两种控制方式中的一种、或者两种方式均可以结合使用，本实施例不进行限定。
需要理解的是，前述第二计时器开始计时可以存在两种情况，一种就是第二计时器原来保持初始值，即第二计时器原来计时为0，若接收到第一终端发来的数据、或者向第一终端发送数据的时候，确定开始从0计时；
还有一种情况就是，第二计时器原来已经处于计时状态中，比如原来已经向第一终端开始发送数据了，然后再次向第一终端发送数据，可以将已经开始计时的第二计时器中的数值清零重新启动，重新开始从0计时。或者，还可以为第二计时器原来启动是由于第二终端开始发送数据了，第二计时器启动开始计时，然后第二终端接收到第一终端发来的数据的时候，可以将第二计时器重启重新开始计时。
具体来说，所述数据包括以下至少一种：PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
所述接收第一终端发来的第一消息之后，所述方法还包括：
当所述第一消息包含参考信号时，所述第二终端根据所述第一消息中的参考信号进行信道测量；其中，所述参考信号用于信道质量测量。
具体来说，所述第一消息中，可以仅包含参考信号，也可以包括参考信号以及其他数据内容。
其中，所述第一消息中仅包含参考信号的场景中，可以为只要有第一消息，就向第二终端发送，也就是说，不论当前是否有向第二终端发送的其他数据，均可以将生成的第一消息单独发送给第二终端，此时，可以理解为，仅在底层进行第一消息的发送处理。
第一消息中不仅包含参考信号的场景，可以为将第一消息与其他数据结合在一起进行发送，比如，当前高层确定了需要向第二终端发送的数据，然后将第一消息放在所要发送的数据结构中进行发送，可以理解为将第一消息附加或者贴在其他数据进行发送。
所述第二终端根据所述第一消息中的参考信号进行信道测量之后，所述方法还包括：
所述第二终端在第二周期内的至少一个时频资源处向所述第一终端反馈至少一个信道质量信息。
其中，至少一个时频资源的数量大于或等于至少一个信道质量信息的数量。
需要指出的是，本实施例中第二周期内的至少一个时频资源，与前述实施例一种第一周期内的M个时频资源是不同的。
其中，第二周期可以根据实际情况进行设置，比如可以设置为20ms或者更长比如1s，本实施例不进行穷举。
所述时频资源由网络侧配置、或者、由第一终端配置、或者、由第二终端预配置。
也就是说，时频资源的位置，可以由网络侧比如基站为终端进行配置，此时，可以为基站侧为第一终端以及第二终端均进行配置时频资源，以使得第一终端获知在哪些时频资源位置处可以接收信道质量信息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以发送信道质量信息。
另外，时频资源的位置可以由第一终端进行配置，其配置的方式可以为第一终端与第二终端在前期通信的时候，获得第一终端发来的数据中携带有所述时频资源的位置。如此，使得第二终端获知在哪些时频资源位置处可以发送信道质量信息，或者也可以使得第一终端能够获知在哪些时频资源位置处可以接收到信道质量信息。
当时频资源由第二终端配置的时候，可以不通知第一终端其配置；当然还可以将第一终端为自身配置的时频资源的位置通知给第一终端，其发送方式可以为携带在其他传输数据中向第一终端发送，如此可以使得第一终端能够获知在哪些时频资源位置处可以接收到信道质量信息。
需要理解的是，本实施例提供的向第一终端反馈信道质量信息的时候， 还可以包括：
若在所述第二周期结束前、未完成信道质量信息的发送，则所述第二终端保持尝试发送所述信道质量信息；
或者，
若在所述第二周期结束前、完成信道质量信息的发送，则停止发送所述信道质量信息。
具体来说，在第二周期结束前，若没有完成预定的信道质量信息的发送，则仍然保持尝试发送信道质量信息，直至第二周期结束的时候停止发送信道质量信息、或者直至完成信道质量信息的发送的时候停止发送所述信道质量信息。
结合前述实施例一以及实施例二，以下提供两种处理场景对前述实施例进行说明：
场景1、
当第一终端有任何的数据传输时，启动或重启第一定时器，所述数据包括以下至少一种：PSCCH，PSSCH，PSFCH，MAC data PDU，MAC control PDU,RLC data PDU,RLC control PDU,PDCP data PDU,PDCP control PDU,PC5-S PDU
当第一定时器超时满足第一触发条件，第一终端发送第一消息，其中，第一消息包含参考信号，用于第二终端进行信道测量。
相应的，当第二终端在时间T内没有测量到来自第一终端的参考信号时(T大于第一定时器的时长)，第二终端判断信道中断，并因此释放连接，例如，向第一终端发送连接释放信令。
场景2、
当第一终端有任何的数据传输时，启动或重启第一定时器，所述数据包括以下至少一种：PSCCH，PSSCH，PSFCH，MAC data PDU，MAC control PDU,RLC data PDU,RLC control PDU,PDCP data PDU,PDCP control PDU,PC5-S PDU
当第一定时器超时，第一终端发送第一消息，第一消息包含参考信号，用于第二终端进行信道测量。
第二终端被配置为在每个时间周期X＝20ms内，发送Y＝2个信道质量反馈。第二终端测量来自第一终端的信号，并尝试在4个预定的时频位置发送反馈；
如果用户尚未完成在当前20ms的周期内的时频位置发送2个信道质量反馈的任务，第二终端继续尝试在当前20ms的周期内的剩下的时频位置发送信道质量反馈；
如果已经完成在当前20ms的周期内的时频位置发送2个信道质量反馈的任务，第二终端不继续尝试在当前20ms的周期内的剩下的时频位置发送信道质量反馈。
可见，通过采用上述方案，就能够使得在D2D通信场景中的第一终端以及第二终端，根据两者传输的第一消息，来触发进行信道质量的测量，或者直接向第二终端反馈信道质量信息。如此，就能够辅助D2D通信中的终端确定链路的质量，实现了在基于竞争的资源集合中完成链路测量。
实施例三、
本发明实施例提供了一种第一终端，如图5所示，包括：
第一处理单元51，满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
第一通信单元52，向所述第二终端发送第一消息。
具体来说，所述第一消息中，至少包括参考信号，其中，所述参考信号用于信道质量测量。
具体来说，所述第一消息中，可以仅包含参考信号，也可以包括参考信号以及其他数据内容。
其中，所述第一消息中仅包含参考信号的场景中，可以为只要有第一消息，就向第二终端发送，也就是说，不论当前是否有向第二终端发送的其他数据，均可以将生成的第一消息单独发送给第二终端，此时，可以理解为，仅在底层进行第一消息的发送处理。
第一消息中不仅包含参考信号的场景，可以为将第一消息与其他数据结合在一起进行发送，比如，当前高层确定了需要向第二终端发送的数据，然后将第一消息放在所要发送的数据结构中进行发送，可以理解为将第一消息附加或者贴在其他数据进行发送。
所述第一触发条件可以为：第一计时器超时。
其中，第一计时器可以提前预设在第一终端中，并且初始值设置为0，此时，可以设置一个第一计时门限值，当第一计时器的计时时长达到该第一计时门限值的时候，确定为第一计时器超时；或者，还可以将初始值设置为第一计时门限值的数值，比如，可以为30ms或者10ms或者1s，然后当第一计时器开启或重启后，其数值逐渐减少，直至减少至0的时候，确定为第一计时器超时。
第一计时器启动、或者重启的控制方式包括：
第一处理单元51，当第一通信单元52发送数据时，启动或重启所述第一计时器；
和/或，
当第一通信单元52接收到第二终端发来的数据时，启动或重启所述第一计时器。
也就是说，需要发送数据的时候，第一计时器开始计时；或者，接收到第二终端的数据的时候，第一计时器开始计时。根据实际情况来确定采 用上述两种控制方式中的一种、或者两种方式均可以结合使用，本实施例不进行限定。
需要理解的是，前述第一计时器开始计时可以存在两种情况，一种就是第一计时器原来保持初始值，即第一计时器原来计时为0，若接收到第二终端发来的数据、或者向第二终端发送数据的时候，确定开始从0计时；
还有一种情况就是，第一计时器原来已经处于计时状态中，比如原来已经向第二终端开始发送数据了，然后再次向第二终端发送数据，可以将已经开始计时的第一计时器中的数值清零重新启动，重新开始从0计时。或者，还可以为第一计时器原来启动是由于第一通信单元52开始发送数据了，第一计时器启动开始计时，然后第一通信单元52接收到第二终端发来的数据的时候，可以将第一计时器重启重新开始计时。
具体来说，所述数据包括以下至少一种：PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
第一通信单元52，在第一周期内，向所述第二终端发送N个第一消息；其中，N为大于等于1的整数。
其中，第一周期可以根据实际情况进行设置，比如可以设置为20ms或者更长比如1s，本实施例不进行穷举。
N的数量也可以根据实际情况进行设置，比如，N可以为4、或者可以为2。也就是说，在20ms内可以向第二终端发送2个第一消息，当然也可以为在1s内发送4个第一消息，不再赘述。
进一步地，第一通信单元52，在第一周期内的M个时频资源处，向所述第二终端发送N个第一消息；其中，M为大于或等于N的整数。
所述时频资源由网络侧配置、或者、由第二终端配置、或者、由第一终端预配置。
也就是说，时频资源的位置，可以由网络侧比如基站为终端进行配置，此时，可以为基站侧为第一终端以及第二终端均进行配置时频资源，以使得第一终端获知在哪些时频资源位置处可以发送第一消息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
另外，时频资源的位置可以由第二终端进行配置，其配置的方式可以为第一终端与第二终端在前期通信的时候，获得第二终端发来的数据中携带有所述M个时频资源的位置。如此，使得第一终端获知在哪些时频资源位置处可以发送第一消息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
当时频资源由第一终端配置的时候，可以不通知第二终端其配置；当然还可以将第一终端为自身配置的M个时频资源的位置通知给第二终端，其发送方式可以为携带在其他传输数据中向第二终端发送，如此可以使得 第二终端能够获知在哪些时频资源位置处可以接收到第一消息。
M为大于或等于N的整数也就是说，第一终端配置的M个时频资源位置上可以全部发送第一消息，也可以仅有部分时频资源处发送第一消息。
还需要指出的是，发送第一消息可以为根据预设的M个时频资源来发送，当然还可以不基于时频资源的限定来发送；比如，根据预设的M个时频资源来发送，也就是说预先为第一终端划分好了发送第一消息的时间或频域范围，在每一个时间以及频域范围内均可以尝试向第二终端发送第一消息；而不根据预设的时频资源发送第一消息的情况中，可以为只要产生了第一消息就开始尝试向第二终端发送，比如，若第一周期为1s时，可以0.2s时发送第一消息，0.5s的时候再发送一次第一消息。
所述第一通信单元52，若在所述第一周期结束前、未完成N个第一消息的发送，则所述第一终端保持尝试发送所述第一消息；
或者，
若在所述第一周期结束前、完成N个第一消息的发送，则停止发送所述第一消息。具体来说，在第一周期结束前，若没有完成预定的N个第一消息的发送，则仍然保持尝试发送第一消息，直至第一周期结束的时候停止发送第一消息、或者直至完成N个第一消息的发送的时候停止发送所述第一消息。
换句话说，可以理解为若没有设置M个时频资源的时候，可以在第一周期没有结束的时候，一直保持发送第一消息的发送，直至完全N个第一消息发送的时候停止发送第一消息、或者直至第一周期结束的时候停止第一消息的发送。
或者，若设置了M个时频资源，则可以为第一周期结束前，若未在M个时频资源的全部时频资源中尝试发送N个第一消息的时候，继续保持尝试在下一个时频资源上发送第一消息；若已经在全部M个时频资源上尝试发送第一消息，仍没有完成发送N个消息消息的时候，可以仍然在其他时域资源位时处保持尝试发送第一消息，直至第一周期结束停止发送第一消息、或者直至完成N个第一消息的发送时停止发送第一消息。
最后还需要说明的是，第一消息还可以为向第二终端反馈信号质量信息，也就是说，本实施例还存在一种场景就是，第一通信单元52，接收到第二终端发来的用于进行信道质量测量的消息，可以根据该消息进行信道质量的测量，进而通过第一消息向第二终端反馈信道质量信息，从而可以使得第二终端也能够获得第一终端检测到的信道质量的情况。
其中，关于第二终端发来用于进行信道质量测量的消息的方式可以与本实施例中前述第一终端发送该消息的方式相同，这里不再进行赘述。
可见，通过采用上述方案，就能够使得在D2D通信场景中的第一终端以及第二终端，根据两者传输的第一消息，来触发进行信道质量的测量，或者直接向第二终端反馈信道质量信息。如此，就能够辅助D2D通信中的 终端确定链路的质量，实现了在基于竞争的资源集合中完成链路测量。
实施例四、
本发明实施例提供了一种第二终端，如图6所示，包括：
第二通信单元61，接收第一终端发来的第一消息；
其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
所述第一消息中，至少包括参考信号，其中，所述参考信号用于信道质量测量。
所述第二终端还包括：
第二处理单元62，当满足第二触发条件时，控制第二通信单元61释放与第一终端的连接。
其中，所述第二终端释放与第一终端的连接，包括：所述第二通信单元61向所述第一终端发送连接释放消息。也就是说，当需要释放与第一终端的连接的时候，第二通信单元61可以向第一终端发送连接释放消息之后，释放第一终端的连接，或者，可以为向第一终端发送连接释放消息后，接收到第一终端反馈的确认消息后第二处理单元62控制第二通信单元61释放第一终端的连接。
所述第二触发条件包括：第二计时器超时。
其中，第二计时器可以提前预设在第二终端中，并且初始值设置为0，此时，可以设置一个第二计时门限值，当第一计时器的计时时长达到该第二计时门限值的时候，确定为第二计时器超时；或者，还可以将初始值设置为第二计时门限值的数值，比如，可以为30ms或者10ms或者1s，然后当第二计时器开启或重启后，其数值逐渐减少，直至减少至0的时候，确定为第二计时器超时。
第二计时器启动、或者重启的控制方式包括：
所述第二处理单元62，
当第二通信单元61发送数据时，启动或重启所述第二计时器；
或者，
当第二通信单元61接收到第一终端发来的数据时，启动或重启所述第二计时器。也就是说，需要发送数据的时候，第二计时器开始计时；或者，接收到第一终端的数据的时候，第二计时器开始计时。根据实际情况来确定采用上述两种控制方式中的一种、或者两种方式均可以结合使用，本实施例不进行限定。
需要理解的是，前述第二计时器开始计时可以存在两种情况，一种就是第二计时器原来保持初始值，即第二计时器原来计时为0，若接收到第一终端发来的数据、或者向第一终端发送数据的时候，确定开始从0计时；
还有一种情况就是，第二计时器原来已经处于计时状态中，比如原来已经向第一终端开始发送数据了，然后再次向第一终端发送数据，可以将已经开始计时的第二计时器中的数值清零重新启动，重新开始从0计时。或者，还可以为第二计时器原来启动是由于第二终端开始发送数据了，第二计时器启动开始计时，然后第二终端接收到第一终端发来的数据的时候，可以将第二计时器重启重新开始计时。
具体来说，所述数据包括以下至少一种：PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
所述接收第一终端发来的第一消息之后，所述第二通信单元61，当所述第一消息包含参考信号时，所述第二终端根据所述第一消息中的参考信号进行信道测量；其中，所述参考信号用于信道质量测量。
具体来说，所述第一消息中，可以仅包含参考信号，也可以包括参考信号以及其他数据内容。
其中，所述第一消息中仅包含参考信号的场景中，可以为只要有第一消息，就向第二终端发送，也就是说，不论当前是否有向第二终端发送的其他数据，均可以将生成的第一消息单独发送给第二终端，此时，可以理解为，仅在底层进行第一消息的发送处理。
第一消息中不仅包含参考信号的场景，可以为将第一消息与其他数据结合在一起进行发送，比如，当前高层确定了需要向第二终端发送的数据，然后将第一消息放在所要发送的数据结构中进行发送，可以理解为将第一消息附加或者贴在其他数据进行发送。
所述第二通信单元61，在第二周期内的至少一个时频资源处向所述第一终端反馈至少一个信道质量信息。
其中，至少一个时频资源的数量大于或等于至少一个信道质量信息的数量。
需要指出的是，本实施例中第二周期内的至少一个时频资源，与前述实施例一种第一周期内的M个时频资源是不同的。
其中，第二周期可以根据实际情况进行设置，比如可以设置为20ms或者更长比如1s，本实施例不进行穷举。
所述时频资源由网络侧配置、或者、由第一终端配置、或者、由第二终端预配置。
也就是说，时频资源的位置，可以由网络侧比如基站为终端进行配置，此时，可以为基站侧为第一终端以及第二终端均进行配置时频资源，以使得第一终端获知在哪些时频资源位置处可以接收信道质量信息，或者也可以使得第二终端能够获知在哪些时频资源位置处可以发送信道质量信息。
另外，时频资源的位置可以由第一终端进行配置，其配置的方式可以 为第一终端与第二终端在前期通信的时候，获得第一终端发来的数据中携带有所述时频资源的位置。如此，使得第二终端获知在哪些时频资源位置处可以发送信道质量信息，或者也可以使得第一终端能够获知在哪些时频资源位置处可以接收到信道质量信息。
当时频资源由第二终端配置的时候，可以不通知第一终端其配置；当然还可以将第一终端为自身配置的时频资源的位置通知给第一终端，其发送方式可以为携带在其他传输数据中向第一终端发送，如此可以使得第一终端能够获知在哪些时频资源位置处可以接收到信道质量信息。
需要理解的是，本实施例提供的向第一终端反馈信道质量信息的时候，还可以包括：
若在所述第二周期结束前、未完成信道质量信息的发送，则所述第二终端保持尝试发送所述信道质量信息；
或者，
若在所述第二周期结束前、完成信道质量信息的发送，则停止发送所述信道质量信息。
具体来说，在第二周期结束前，若没有完成预定的信道质量信息的发送，则仍然保持尝试发送信道质量信息，直至第二周期结束的时候停止发送信道质量信息、或者直至完成信道质量信息的发送的时候停止发送所述信道质量信息。
可见，通过采用上述方案，就能够使得在D2D通信场景中的第一终端以及第二终端，根据两者传输的第一消息，来触发进行信道质量的测量，或者直接向第二终端反馈信道质量信息。如此，就能够辅助D2D通信中的终端确定链路的质量，实现了在基于竞争的资源集合中完成链路测量。
图7是本申请实施例提供的一种通信设备700示意性结构图，本实施例中的通信设备可以具体为前述实施例中的第一终端或第二终端。图7所示的通信设备700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图7所示，通信设备700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，如图7所示，通信设备700还可以包括收发器730，处理器710可以控制该收发器730与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器730可以包括发射机和接收机。收发器730还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备700具体可为本申请实施例的网络设备，并且该通信设备700可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备700具体可为本申请实施例的终端设备、或者网络设备，并且该通信设备700可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图8是本申请实施例的芯片的示意性结构图。图8所示的芯片800包括处理器810，处理器810可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图8所示，芯片800还可以包括存储器820。其中，处理器810可以从存储器820中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器820可以是独立于处理器810的一个单独的器件，也可以集成在处理器810中。
可选地，该芯片800还可以包括输入接口830。其中，处理器810可以控制该输入接口830与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片800还可以包括输出接口840。其中，处理器810可以控制该输出接口840与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的终端设备，并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软 件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并 且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
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。
所述功能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 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(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (43)

  1. 一种D2D通信中信道质量测量方法，应用于第一终端，所述方法包括：
    所述第一终端满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
    向所述第二终端发送第一消息。
  2. 根据权利要求1所述的方法，其中，所述第一消息中，至少包括参考信号，所述参考信号用于信道质量测量。
  3. 根据权利要求1所述的方法，其中，所述第一触发条件包括：第一计时器超时。
  4. 根据权利要求3所述的方法，其中，所述方法还包括：
    当第一终端发送数据时，启动或重启所述第一计时器；
    和/或，
    当所述第一终端接收到第二终端发来的数据时，启动或重启所述第一计时器。
  5. 根据权利要求4所述的方法，其中，所述数据包括以下至少一种：
    PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
  6. 根据权利要求1-5任一项所述的方法，其中，所述向所述第二终端发送第一消息，包括：
    在第一周期内，向所述第二终端发送N个第一消息；其中，N为大于等于1的整数。
  7. 根据权利要求6所述的方法，其中，所述在第一周期内，向所述第二终端发送N个第一消息，包括：
    在第一周期内的M个时频资源处，向所述第二终端发送N个第一消息。
  8. 根据权利要求7所述的方法，其中，
    M为大于或等于N的整数。
  9. 根据权利要求7所述的方法，其中，所述时频资源由网络侧配置、或者、由第二终端配置、或者、由第一终端预配置。
  10. 根据权利要求6-9任一项所述的方法，其中，所述在第一周期内，向所述第二终端发送N个第一消息，还包括：
    若在所述第一周期结束前、未完成N个第一消息的发送，则所述第一终端保持尝试发送所述第一消息；
    或者，
    若在所述第一周期结束前、完成N个第一消息的发送，则停止发送所 述第一消息。
  11. 一种D2D通信中信道质量测量方法，应用于第二终端，所述方法包括：
    接收第一终端发来的第一消息；
    其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
  12. 根据权利要求11所述的方法，其中，所述方法还包括：
    当满足第二触发条件时，所述第二终端释放与第一终端的连接。
  13. 根据权利要求12所述的方法，其中，所述第二终端释放与第一终端的连接，包括：
    所述第二终端向所述第一终端发送连接释放消息。
  14. 根据权利要求12或13所述的方法，其中，所述第二触发条件包括：第二计时器超时。
  15. 根据权利要求14所述的方法，其中，所述方法还包括：
    当第二终端发送数据时，启动或重启所述第二计时器；
    或者，
    当所述第二终端接收到第一终端发来的数据时，启动或重启所述第二计时器。
  16. 根据权利要求15所述的方法，其中，所述数据包括以下至少一种：
    PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
  17. 根据权利要求11-16任一项所述的方法，其中，所述接收第一终端发来的第一消息之后，所述方法还包括：
    当所述第一消息包含参考信号时，所述第二终端根据所述第一消息中的参考信号进行信道测量；
    所述参考信号用于信道质量测量。
  18. 根据权利要求17所述的方法，其中，所述第二终端根据所述第一消息中的参考信号进行信道测量之后，所述方法还包括：
    所述第二终端在第二周期内的至少一个时频资源处向所述第一终端反馈至少一个信道质量信息。
  19. 根据权利要求18所述的方法，其中，所述至少一个时频资源由网络侧配置、或者、由第二终端预配置、或者、由第一终端配置。
  20. 一种第一终端，包括：
    第一处理单元，满足第一触发条件时产生第一消息；其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信；
    第一通信单元，向所述第二终端发送第一消息。
  21. 根据权利要求20所述的第一终端，其中，所述第一消息中，至少包括参考信号，所述参考信号用于信道质量测量。
  22. 根据权利要求20所述的第一终端，其中，所述第一触发条件包括：第一计时器超时。
  23. 根据权利要求22所述的第一终端，其中，所述方法还包括：
    所述第一处理单元，当通过第一通信单元发送数据时，启动或重启所述第一计时器；
    和/或，
    所述第一处理单元，当通过第一通信单元接收到第二终端发来的数据时，启动或重启所述第一计时器。
  24. 根据权利要求23所述的第一终端，其中，所述数据包括以下至少一种：
    PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
  25. 根据权利要求20-24任一项所述的第一终端，其中，所述第一通信单元，在第一周期内，向所述第二终端发送N个第一消息；其中，N为大于等于1的整数。
  26. 根据权利要求25所述的第一终端，其中，所述第一通信单元，在第一周期内的M个时频资源处，向所述第二终端发送N个第一消息。
  27. 根据权利要求26所述的第一终端，其中，
    M为大于或等于N的整数。
  28. 根据权利要求26所述的第一终端，其中，所述时频资源由网络侧配置、或者、由第二终端配置、或者、由第一终端预配置。
  29. 根据权利要求25-28任一项所述的第一终端，其中，所述第一通信单元，若在所述第一周期结束前、未完成N个第一消息的发送，则保持尝试发送所述第一消息；
    或者，
    若在所述第一周期结束前、完成N个第一消息的发送，则停止发送所述第一消息。
  30. 一种第二终端，包括：
    第二通信单元，接收第一终端发来的第一消息；
    其中，所述第一消息用于第二终端进行信道质量测量、或者所述第一消息用于向第二终端反馈信道质量信息；所述第一终端与所述第二终端进行D2D通信。
  31. 根据权利要求30所述的第二终端，其中，所述第二终端还包括：
    第二处理单元，当满足第二触发条件时，控制第二通信单元释放与第 一终端的连接。
  32. 根据权利要求31所述的第二终端，其中，所述第二通信单元，向所述第一终端发送连接释放消息。
  33. 根据权利要求31或32所述的第二终端，其中，所述第二触发条件包括：第二计时器超时。
  34. 根据权利要求33所述的第二终端，其中，所述第二处理单元，
    当第二通信单元发送数据时，启动或重启所述第二计时器；
    或者，
    当第二通信单元接收到第一终端发来的数据时，启动或重启所述第二计时器。
  35. 根据权利要求34所述的第二终端，其中，所述数据包括以下至少一种：
    PSCCH传输的数据，PSSCH传输的数据，PSFCH传输的数据，MAC数据PDU，MAC控制PDU，RLC数据PDU，RLC控制PDU，PDCP数据PDU，PDCP控制PDU，PC5-S PDU，参考信号。
  36. 根据权利要求30-35任一项所述的第二终端，其中，所述第二通信单元，当所述第一消息包含参考信号时，根据所述第一消息中的参考信号进行信道测量；
    所述参考信号用于信道质量测量。
  37. 根据权利要求36所述的第二终端，其中，所述第二通信单元，在第二周期内的至少一个时频资源处向所述第一终端反馈至少一个信道质量信息。
  38. 根据权利要求37所述的第二终端，其中，所述至少一个时频资源由网络侧配置、或者、由第二终端预配置、或者、由第一终端配置。
  39. 一种终端，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
    其中，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1-19任一项所述方法的步骤。
  40. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1-19中任一项所述的方法。
  41. 一种计算机可读存储介质，所述计算机可读存储介质用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1-19任一项所述方法的步骤。
  42. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1-19中任一项所述的方法。
  43. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1-19中任一项所述的方法。
PCT/CN2018/118643 2018-11-30 2018-11-30 一种d2d通信中信道质量测量方法及终端 Ceased WO2020107424A1 (zh)

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