WO2020107424A1 - Procédé de mesure de qualité de canal dans une communication d2d et terminal - Google Patents

Procédé de mesure de qualité de canal dans une communication d2d et terminal 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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Application number
PCT/CN2018/118643
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English (en)
Chinese (zh)
Inventor
卢前溪
赵振山
林晖闵
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2018/118643 priority Critical patent/WO2020107424A1/fr
Priority to PCT/CN2019/075121 priority patent/WO2020107713A1/fr
Priority to CN201980037525.3A priority patent/CN112262587B/zh
Priority to PCT/CN2019/085897 priority patent/WO2020107807A1/fr
Publication of WO2020107424A1 publication Critical patent/WO2020107424A1/fr

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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 .

Abstract

L'invention concerne un procédé de procédé de mesure de qualité de canal en communication D2D, des terminaux, une puce, un support d'informations lisible par ordinateur, un produit-programme informatique et un programme informatique. Le procédé consiste : à produire, par un premier terminal, un premier message lorsqu'il vérifie une première condition de déclenchement, le premier message servant à effectuer une mesure de qualité de canal d'un second terminal ou le premier message servant à renvoyer des informations de qualité de canal à un second terminal ; à réaliser, par le premier terminal et par le second terminal, une communication D2D ; et à envoyer le premier message au second terminal.
PCT/CN2018/118643 2018-11-30 2018-11-30 Procédé de mesure de qualité de canal dans une communication d2d et terminal WO2020107424A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2018/118643 WO2020107424A1 (fr) 2018-11-30 2018-11-30 Procédé de mesure de qualité de canal dans une communication d2d et terminal
PCT/CN2019/075121 WO2020107713A1 (fr) 2018-11-30 2019-02-14 Procédé de mesure de qualité de canal dans une communication d2d et terminal
CN201980037525.3A CN112262587B (zh) 2018-11-30 2019-05-07 一种d2d通信中信道质量测量方法及终端
PCT/CN2019/085897 WO2020107807A1 (fr) 2018-11-30 2019-05-07 Procédé de mesure de qualité de canal dans une communication d2d, et terminaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/118643 WO2020107424A1 (fr) 2018-11-30 2018-11-30 Procédé de mesure de qualité de canal dans une communication d2d et terminal

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CN103702346A (zh) * 2012-09-27 2014-04-02 中兴通讯股份有限公司 一种设备到设备用户设备间信道状态测量的方法及设备
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