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WO2019158002A1 - Procédé de transmission et dispositif de communication - Google Patents

Procédé de transmission et dispositif de communication Download PDF

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Publication number
WO2019158002A1
WO2019158002A1 PCT/CN2019/074533 CN2019074533W WO2019158002A1 WO 2019158002 A1 WO2019158002 A1 WO 2019158002A1 CN 2019074533 W CN2019074533 W CN 2019074533W WO 2019158002 A1 WO2019158002 A1 WO 2019158002A1
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WO
WIPO (PCT)
Prior art keywords
time period
information
control information
transmitting
sequence
Prior art date
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/CN2019/074533
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English (en)
Chinese (zh)
Inventor
颜留单
王诗源
张欣
曾勇波
才宇
王键
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.)
Huawei Technologies Co Ltd
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Huawei Technologies Co 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
Priority claimed from CN201810302165.2A external-priority patent/CN110166093B/zh
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2019158002A1 publication Critical patent/WO2019158002A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • V2V vehicle-to-Vehicle
  • V2P vehicle-to-Pedestrian
  • V2I/N vehicle-infrastructure network
  • V2X Vehicle-to-Everything
  • the communication in V2X can be implemented based on the PC5 interface (the interface for communication between the terminal device and the terminal device), or based on the Uu interface (the interface between the terminal device and the radio access network device).
  • 3GPP completed the initial standardization of LTE-based V2V services.
  • the R14 (Release 14) version completed enhancements to some scenarios of LTE-based V2X (V2V, V2I/N, V2P).
  • V2V, V2I/N, V2P LTE-based V2X
  • 3GPP identified new 25 advanced V2X use cases in TR22.886.
  • the V15X service needs to be further enhanced in the R15 version, which is compatible and complementary to the Release 14V2X.
  • the use of Transmitter Diversity on the PC5 interface is part of the enhancement.
  • the present application provides a transmission method and a communication device, which adopt different transmission modes in the process of transmitting control information, which helps to improve the reception performance of communication devices of different relative speeds, thereby avoiding the possibility of using only one transmission mode. Receive performance is degraded.
  • a transmission method includes: transmitting, by a communication device, first control information by using a transmit diversity manner in a first time period; and transmitting, by using a single antenna, the second control information in a second time period
  • the first control information and the resource indicated by the second control information are all or partially the same, and the first time period and the second time period have time intervals.
  • the transmit diversity mode is a Short Delay Cyclic Delay Diversity (SD-CDD) mode.
  • SD-CDD Short Delay Cyclic Delay Diversity
  • the first control information is first side link control information (SCI)
  • the second control information is a second SCI
  • the first SCI and the second SCI The indicated resources are all or partially the same.
  • the first SCI and the second SCI are carried by the PSCCH.
  • sending the first control information may also be understood as sending the first control channel, where the first control channel carries the first control information.
  • the transmission method in the embodiment of the present application adopts different transmission modes in the process of transmitting control information, which helps to improve the receiving performance of communication devices with different relative speeds, thereby avoiding the degradation of reception performance that may be caused by only one transmission mode. .
  • n-1th cycle delay value transmitting, according to the n-1th cycle delay value, the nth control information by using a transmit diversity manner, where the nth control information is the same as all or part of the resource indicated by the first control information, where the nth time is The segment has a time interval with the first time period, n, N are positive integers and 3 ⁇ n ⁇ N, where N is the total number of times the control information is transmitted.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • the sequence of the first time period and the second time period is preset by a certain communication version.
  • the communications device sends the first control information by using a transmit diversity manner in the first time period, including: the communications device according to the first loop in the first time period The delay value is sent by using the transmit diversity mode; and the method further includes: transmitting, by the communication device, third control information by using a transmit diversity manner according to the second cyclic delay value in the third time period, where The third control information is the same as all or part of the resource indicated by the first control information, and the first time period and the third time period have time intervals.
  • the first loop delay value and the second loop delay value are different.
  • the transmission mode is changed, including switching in the single antenna mode and the transmission diversity mode based on different cyclic delay values, which helps to adapt to the more complex vehicle relative speed.
  • the distributed scene eliminates the relative speed of the vehicle and reduces the reception performance of the control information reception.
  • the method further includes: during the nth time period, the communications device performs any of the following manners to send the nth control information:
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • the sequence of any two of the first time period to the nth time period is preset by a communication protocol, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • a transmission method includes: transmitting, by the communication device, first control information by using a transmit diversity manner according to a first cyclic delay value in a first time period; the communication device is configured according to the second time period according to the second time period The second loop delay value is sent in the transmit diversity manner, where the first control information is the same as the resource indicated by the second control information, and the first time period and the second time period have The time interval, the first cycle delay value and the second cycle delay value are different.
  • the transmit diversity mode is a Short Delay Cyclic Delay Diversity (SD-CDD) mode.
  • SD-CDD Short Delay Cyclic Delay Diversity
  • the change of the transmission mode helps to adapt to a more complicated scenario of the relative speed distribution of the vehicle. Eliminating the relative speed of the vehicle reduces the reception performance of the control information reception.
  • the transmitting method includes: transmitting the first control information by using a transmit diversity manner according to a first cyclic delay value in a first time period; and according to the second cyclic delay value in the second time period, Transmitting the second control information by using a transmit diversity method; in the nth time period, the communications device sends the nth control information by any one of the following methods:
  • the first time period has a time interval, n and N are positive integers and 3 ⁇ n ⁇ N, and N is the total number of times the control information is transmitted.
  • the sequence of the first time period and the second time period is preset by a certain communication version.
  • the sequence of the first time period and the second time period is determined by communication protocol negotiation between the communication device and another communication device.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period
  • the sequence is determined randomly, or the sequence of the first time period and the second time period is determined based on the indication information sent by the network device.
  • the method further includes: sending, by the communications device, the third control information in a single antenna manner in a third time period, where the third control information is The resources indicated by the first control information are all or partially the same, and the first time period and the third time period have time intervals.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • the sequence of any two of the first time period to the nth time period is preset by a communication protocol, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • a communication device comprising: a processor, configured to transmit first control information by a transmitter in a transmit diversity manner in a first time period; the processor is further configured to use the second time The segment is in a single antenna mode, and the second control information is sent by the transmitter, where the first control information and the resource indicated by the second control information are all or part of the same, and the first time period and the second time period have time interval.
  • the “transmitter” in the embodiment of the present application may also be referred to as “communication interface”, “transceiver” and the like.
  • the processor is specifically configured to: send the first control information by using the SD-CDD mode in the first time period.
  • the first control information is a first SCI
  • the second control information is a second SCI
  • the resources indicated by the first SCI and the second SCI are all or partially the same.
  • the communication device in the embodiment of the present application adopts different transmission modes in the process of transmitting control information, which helps to improve the receiving performance of communication devices with different relative speeds, thereby avoiding the degradation of reception performance that may be caused by only one transmission mode. .
  • the processor sends the first control information by using the transmitter according to the first cyclic delay value in a first time period according to the first cyclic delay value, and adopting a single antenna manner in the second time period.
  • the second control information is sent by the transmitter; in the nth time period, the processor sends the nth control information by any one of the following methods:
  • the nth control information is the same as all or part of the resource indicated by the first control information, and the n time period has a time interval with the first time period, n and N are positive integers, and 3 ⁇ n ⁇ N, N is The total number of times control information was sent.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • the processor is specifically configured to: send, by using, the transmitter according to the first cyclic delay value in a first time period by using a transmit diversity manner a control information; and the processor is further configured to: in the third time period, use a transmit diversity manner to transmit third control information by using the second cyclic delay value, wherein the third control information and the third The resources indicated by the control information are all or partially the same, and the first time period and the third time period have time intervals.
  • the first loop delay value and the second loop delay value are different.
  • the communication device in the embodiment of the present application changes the transmission mode when transmitting control information, including switching in a single antenna mode and a transmit diversity mode based on different cyclic delay values, which helps to adapt to more complex vehicle relative speeds.
  • the distributed scene eliminates the relative speed of the vehicle and reduces the reception performance of the control information reception.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • a fourth aspect provides a communication device, including: a processor, configured to send, by using a transmitter, first control information by using a transmit diversity manner according to a first cyclic delay value in a first time period;
  • the second control information is sent by the transmitter according to the second cyclic delay value, and the second control information is sent by the transmitter.
  • the first control information is the same as the resource indicated by the second control information.
  • the first time period and the second time period have time intervals, and the first cycle delay value and the second cycle delay value are different.
  • the processor is specifically configured to: in the first time period, use the SD-CDD mode to transmit the first control information according to the first cyclic delay value; and in the second time period According to the second cyclic delay value, the second control information is sent by the transmitter by using an SD-CDD method.
  • the first control information is a first SCI
  • the second control information is a second SCI
  • the resources indicated by the first SCI and the second SCI are all or partially the same.
  • the communication device of the embodiment of the present application when transmitting control information, performs a change of the transmission mode, including switching in a transmit diversity mode based on different cyclic delay values, and helps to adapt to a more complicated scene of the relative speed distribution of the vehicle. Eliminating the relative speed of the vehicle reduces the reception performance of the control information reception.
  • the processor sends the first control information by using the transmitter according to the first cyclic delay value in a first time period according to the first cyclic delay value, and according to the second loop time in the second time period.
  • the delay value is transmitted by the transmitter by using a transmit diversity mode; in the nth time period, the processor sends the nth control information by any one of the following methods:
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined based on the indication information sent by the network device.
  • the processor is further configured to: send, by using the single antenna, the third control information by using the transmitter in a third time period, where the The third control information is the same as all or part of the resource indicated by the first control information, and the first time period and the third time period have time intervals.
  • a communication device in a fifth aspect, includes: a processing module, configured to generate first control information and second control information; the processing module is further configured to adopt a transmit diversity mode in the first time period, and send and receive The module sends the first control information; the processing module is further configured to send the second control information by using the single-antenna mode in the second time period, where the first control information and the second control information indicate The resources are all or partially the same, and the first time period and the second time period have time intervals.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • the processing module is configured to: send, by using the transceiver module, the transmit diversity mode according to the first cyclic delay value in the first time period. a control information; and the processing module is further configured to: in the third time period, use a transmit diversity manner to transmit third control information by using the transmit and receive module according to the second cyclic delay value, wherein the third control information and the third control information
  • the resources indicated by the control information are all or partially the same, and the third time period has a time interval with the first time period.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • a communication device includes: a processing module, configured to generate first control information and second control information; the processing module is further configured to use the first cyclic delay value in the first time period
  • the first control information is sent by the transceiver module by using a transmit diversity mode.
  • the processing module is further configured to send, by using the transmit and receive modules, the second control information according to the second cyclic delay value in the second time period.
  • the first control information and all the resources indicated by the second control information are all the same, the first time period and the second time period have a time interval, the first cycle delay value and the second cycle time The delay is different.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined based on the indication information sent by the network device.
  • the processing module is further configured to: use a single antenna mode in a third time period, and send, by using the transceiver module, third control information, where the third The control information is the same as all or part of the resource indicated by the first control information, and the first time period and the third time period have time intervals.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • the transmitting method includes: transmitting the first information by using a transmit diversity manner according to a first cyclic delay value in a first time period; and transmitting the second information by using a single antenna manner in a second time period.
  • the communication device performs the following information to send the nth information:
  • n-1th cycle delay value transmitting, according to the n-1th cycle delay value, the nth information by using a transmit diversity manner, where the nth information is all or part of the content of the first information, the nth time period and the The first time period has a time interval, n, N are positive integers and 3 ⁇ n ⁇ N, where N is the total number of times the information is transmitted.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period are The sequence is determined randomly, or the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • the communications device sends the first information by using a transmit diversity manner in the first time period, including: the communications device is in the first time period according to the first loop And delaying, sending the first information by using a transmit diversity manner; and the method further includes: the communications device transmitting the third information by using a transmit diversity manner according to the second cyclic delay value in the third time period, where the third information The content indicated by the first information is all or part of the same, and the first time period and the third time period have time intervals.
  • the content of the first information, the second information, and the third information are all or partially the same.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • the first information and the second information are data information.
  • a transmission method includes: the communication device sends the first information by using a transmit diversity manner according to the first cyclic delay value in a first time period; and the communication device is in the second time period according to the first The second cyclic delay value is sent by using the transmit diversity method; wherein the first information is identical to the content of the second information, and the first time period and the second time period have a time interval, the first time period A loop delay value is different from the second loop delay value.
  • the transmitting method includes: transmitting, by using a transmit diversity manner, the first information according to a first cyclic delay value in a first time period; and adopting, according to a second cyclic delay value, in a second time period, The second information is sent in a transmit diversity manner; in the nth time period, the communications device performs the following information to send the nth information:
  • nth loop delay value transmits, according to the nth loop delay value, the nth information by using a transmit diversity manner, where the nth information is all or part of the content of the first information, and the nth time period and the first The time period has a time interval, n, N are positive integers and 3 ⁇ n ⁇ N, where N is the total number of times the information is transmitted.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period are The sequence is determined randomly, or the sequence of the first time period and the second time period is determined based on the indication information sent by the network device.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time period The sequence is determined randomly, or the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • the processor is specifically configured to: send, according to the first cyclic delay value, a transmit diversity manner by using the transmitter in the first time period a message; and the processor is further configured to: in the third time period, use a transmit diversity manner to transmit third information by using the second cycle delay value, wherein the third information is related to the first information
  • the content is all or partially the same, and the first time period and the third time period have time intervals.
  • a communication device includes: a processor, configured to send, by using a transmitter, first information according to a first cyclic delay value according to a first cyclic delay value; the processor Transmitting, by the transmitter, the second information by using the transmitter according to the second cyclic delay value in the second time period; wherein the first information is identical to the content of the second information, the first time period, the first time period And the second time period has a time interval, and the first cycle delay value is different from the second cycle delay value.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time period are The sequence is determined randomly, or the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • a communication device includes: a processing module, configured to generate first information and second information; the processing module is further configured to adopt a transmit diversity mode in the first time period, and send and receive modules Sending the first information; the processing module is further configured to send the second information by using the single-antenna mode in the second time period, where the content of the first information and the second information are all or partially the same, The first time period and the second time period have time intervals.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time
  • the sequence of the time segments is determined randomly, or the sequence of the first time segment and the second time segment is determined according to the indication information sent by the network device.
  • the processing module is specifically configured to: use the transmit diversity mode to send by using the transmit and receive module according to the first cyclic delay value in the first time period.
  • the first information and the processing module is further configured to: send, by using the transceiver module, the third information by using the transmit diversity mode according to the second cyclic delay value, where the third information and the first The content of the information is all or partially the same, and the third time period has a time interval with the first time period.
  • a communication device includes: a processing module, configured to generate first information and second information; the processing module is further configured to use, according to the first cyclic delay value, in the first time period, The first information is sent by the transceiver module by using a transmit diversity mode; the processing module is further configured to send the second information by using the transmit and receive module according to the second cyclic delay value in the second time period, where the second information is sent by the transceiver module;
  • the first information is identical to the content of the second information, and the first time period and the second time period have a time interval, and the first cycle delay value and the second cycle delay value are different.
  • the sequence of the first time period and the second time period is preset, or the first time period and the second time
  • the sequence of the time segments is randomly determined, or the sequence of the first time segment and the second time segment is determined based on the indication information sent by the network device.
  • the processing module is further configured to: use a single antenna mode in a third time period, and send the third information by using the transceiver module, where the The three information is the same as all or part of the content of the first information, and the first time period and the third time period have time intervals.
  • the sequence of the first time period and the third time period is preset, or the first time period and the third time
  • the sequence of the time segments is determined randomly, or the sequence of the first time segment and the third time segment is determined according to the indication information sent by the network device.
  • a chip system for use in a communication device, the chip system comprising: at least one processor, at least one memory, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world,
  • the at least one memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform the various aspects described above The operation of the communication device in the method described.
  • a communication system comprising: a communication device; wherein the communication device is the communication device described in the above aspects.
  • a computer readable storage medium is provided, the instructions being stored in a computer readable storage medium, when executed on a computer, causing the computer to perform the method of the various aspects described above.
  • FIG. 2 is a schematic diagram of a single antenna transmission.
  • Figure 3 is a schematic diagram of an SD-CDD transmission.
  • FIG. 4 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • FIG. 5 is another schematic flowchart of a transmission method according to an embodiment of the present application.
  • Figure 6 is a schematic diagram of a process of transmitting control information.
  • Figure 7 is another schematic diagram of the process of transmitting control information.
  • FIG. 8 is a schematic diagram of switching between transmission modes according to an embodiment of the present application.
  • Figure 9 is a further schematic diagram of the process of transmitting control information.
  • FIG. 10 is still another schematic flowchart of a transmission method according to an embodiment of the present application.
  • FIG. 11 is still another schematic flowchart of a transmission method according to an embodiment of the present application.
  • Figure 12 is a further schematic diagram of the process of transmitting control information.
  • Figure 13 is a further schematic diagram of the process of transmitting control information.
  • FIG. 14 is another schematic diagram of switching between transmission modes according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 16 is another schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 17 is still another schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 18 is still another schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 19 is another schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 20 is still another schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 21 is another schematic block diagram of a communication device according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • FIG. 1 shows an application scenario of the technical solution of the embodiment of the present application.
  • a user equipment (User Equipment, UE) 1 can directly communicate with UE2, UE3, and UE4, for example, device-to-device ( Device to Device, D2D) communication.
  • UE1 may send control information or data information to surrounding UE2, UE3, and UE4.
  • the control information may be carried by the control channel
  • the data information may be carried on the shared channel or the data channel
  • the resource for the user equipment to send the data information may be indicated by the control information.
  • UE1 is the transmitting end
  • UE2, UE3, and UE4 are the receiving ends.
  • the application scenario shown in FIG. 1 may specifically be a car network V2X communication system.
  • the link between the UE1 and the UE2, the UE3, and the UE4 may be a side link.
  • the application scenario of the embodiment of the present application is not limited to a car networking scenario and a Sidelink link.
  • the UE may be a vehicle
  • UE1 in FIG. 1 may be a vehicle in R15
  • UE2, UE3, and UE4 may be vehicles in R14 or R15.
  • UE1 can send PSCCH messages to UE2, UE3 and UE4 through the side link. Since the information carried on the PSCCH channel is control information, the information needs to be received and decoded by the UEs of R14 and R15 at the same time, so that the system can communicate normally.
  • the UEs of R15 can decode the transmitted messages between each other, and the messages sent by the UE of R14 can also be decoded by the more advanced UE of R15. Therefore, when the UE designing the R15 adopts the transmit diversity mode, it is compatible with the receiving performance of the R14 UE, so that the UE of the R14 can receive and decode the P15CH message of the R15.
  • Single antenna transmission Send data on one antenna.
  • the UE in R14 uses single antenna transmission when transmitting the PSCCH/PSSCH message.
  • Transmit diversity The same data is redundantly transmitted on multiple antennas, which improves the reliability of data transmission compared to single antenna transmission.
  • the UE in R15 may use transmit diversity transmission when transmitting a PSCCH/PSSCH message.
  • FIG. 2 shows a schematic diagram of a single antenna transmission.
  • the PSCCH/PSSCH channel is transmitted to the user equipment (Rx UE) of the receiving end through the antenna port Port1 by adding a cyclic prefix (Adding CP).
  • FIG. 3 shows a schematic diagram of an SD-CDD transmission.
  • SD-CDD transmission adds an antenna port Port2 for transmission with a cyclic delay compared to the single antenna transmission of FIG. 2 ( Cyclic-Delay), the signal arriving at Port1 and the signal arriving at Port2 are orthogonal to each other, and the signal of Port1 and the signal of Port2 are simultaneously transmitted to the user equipment (Rx UE) of the receiving end.
  • Rx UE user equipment
  • the receiver For the receiving end of R14 (or R15), the receiver only observes the addition of a multipath signal, and the signals are orthogonal to each other and do not form interference, so the receiving end of R14 (or R15) can be correct. Decoding the PSCCH/PSSCH message sent by the UE of R15.
  • the UE in FIG. 1 is described as a vehicle. Since the vehicle that transmits the message and the vehicle that receives the message are in a moving state during the communication, and the message is broadcasted, the different transmitters and receivers have different speeds, and the vehicle There are also different relative velocities between them.
  • the relative velocity distribution between vehicles can be divided into low speed, medium speed and high speed conditions.
  • the SD-CDD transmit diversity technique and the single antenna are used to transmit the PSCCH/PSSCH message, which have different receiving performances:
  • the receiving vehicle can obtain a diversity gain, and the receiving performance of the SD-CDD transmission diversity is superior to the reception performance of the single antenna transmission.
  • the SD-CDD transmit diversity gain is not significant or the receiving performance is slightly degraded, and the single antenna transmission and the SD-CDD transmit diversity performance are close.
  • time period in the embodiment of the present application may be a slot, a mini-slot, a minislot, a time slot after multiple slots, a subframe, a symbol, etc., This is not a limitation.
  • the first control information may indicate one resource (eg, resource 1)
  • the second control information may indicate one resource (eg, resource 1)
  • the first control information and the second control information are all the same; or the first control information may indicate 2 resources (for example, resource 1 and resource 2), and the second control information may indicate 2 resources (for example, resource 1 and resource 3), then the The first control information and the resource portion indicated by the second control information are the same.
  • the transmit diversity transmission mode is an SD-CDD transmission mode.
  • sending the first control information may also be understood as sending the first control channel, where the first control channel carries the first control information.
  • the resources indicated by the first control information and the second control information are all the same or partially, and the sequence used to generate the first control information and the second control information may be different.
  • the transmission method of the embodiment of the present application adopts different transmission modes in the process of transmitting information twice, which is helpful for averaging the receiving gains of the receiving ends at low speed, medium speed and high speed relative speed when receiving information twice.
  • the first time period may be before the second time period, and the first control information is sent by using the SD-CDD transmit diversity mode.
  • the second transmission of the second control information is performed by a single antenna method.
  • the process of transmitting control information in FIG. 6 is also applicable to a process of transmitting data information, that is, the first transmission of the first data information adopts an SD-CDD transmission diversity manner, and the second transmission of the second data information uses a single antenna. the way.
  • the S connection switches between S1 and S2. That is, each time the PSCCH signal is transmitted, the transmission technology used is a single antenna transmission mode or an SD-CDD transmission diversity transmission mode, and the transmission modes used for the two transmissions are different.
  • sequence of the first time period and the second time period is preset, or
  • the sequence of the first time period and the second time period is randomly determined, or
  • the sequence of the first time period and the second time period is determined according to the indication information of the network device.
  • the sequence of the first time period and the second time period is preset by the communication protocol, that is, the sending end may determine whether to adopt the single antenna mode or the SD-CDD mode for the first time according to the communication protocol.
  • the transmitting end may randomly transmit by using a single antenna method (or SD-CDD mode), and when transmitting the control information for the second time, adopt the SD-CDD method (or, Antenna mode).
  • SD-CDD mode a single antenna method
  • Antenna mode a single antenna method
  • the transmitting end can randomly transmit by using a single antenna method (or SD-CDD mode), and when the data information is sent for the second time, the SD-CDD mode is used (or, Antenna mode).
  • SD-CDD mode a single antenna method
  • Antenna mode antenna mode
  • a probability P which may be predefined by the communication protocol, or may be determined according to the indication information sent by the network device. For example, the network device sends the indication information to the sending end, where the indication information carries the Probability P;
  • the sender randomly selects a value x between [0, 1]. If x ⁇ P, the single-antenna method (or SD-CDD mode) is used when transmitting control information (or data information) for the first time. ), the second transmission of control information (or data information) adopts SD-CDD mode (or single antenna mode); if x>P, SD is used when transmitting control information (or data information) for the first time. - CDD mode (or single antenna mode), when transmitting control information (or data information) for the second time, single antenna mode (or SD-CDD mode) is used.
  • the sending by using the transmit diversity manner, the first control information in the first time period, including:
  • the transmission method 100 further includes:
  • the sending end sends the first control information by using a transmit diversity manner according to the first cyclic delay value in the first time period, and transmitting the second control information by using a single antenna manner in the second time period, in the third time. Transmitting, according to the second cyclic delay value, the third control information by using the transmit diversity mode, the first control information, the second control information and the resources indicated by the third control information are all or part of the same, the first time a segment, the second time period having a time interval from any two of the third time periods.
  • sending the first information by using a transmit diversity manner in the first time period including:
  • the transmission method 100 further includes:
  • the transmitting end sends the first information in a transmit diversity manner according to the first cyclic delay value in the first time period, and sends the second information in a single antenna manner in the second time period, in the third time period. Transmitting the third information by using a transmit diversity manner, where the content of the first information and the third information are all or part of the same, the first time period, the second time period, and the third time Any two time periods in the segment have time intervals.
  • the content of the first information, the second information, and the third information are all or partially the same.
  • first loop delay value may be the same as the second loop delay value, or may be different from the second loop delay value.
  • the first loop delay value is different from the second loop delay value.
  • the transmission mode is changed, including switching in the single antenna mode and the transmission diversity mode based on different cyclic delay values, which helps to adapt to the more complex vehicle relative speed.
  • the distributed scene eliminates the relative speed of the vehicle and reduces the reception performance of the control information reception.
  • the change of transmission mode helps to adapt to more complex scenarios of vehicle relative speed distribution and eliminates relative speed of vehicles.
  • the reception performance brought to the reception of data information is degraded.
  • the sequence of the first time period, the second time period, and the third time period may be preset by a communication protocol; or
  • the sequence of the first time period, the second time period, and the third time period is randomly determined; or,
  • the sequence of the first time period, the second time period, and the third time period is determined according to the indication information sent by the network device.
  • the process of transmitting the control information includes N time segments (N is a positive integer greater than or equal to 2), and the N time segments respectively correspond to N control information transmissions, and the transmission method 100 may be applied to transmit the control information.
  • N is a positive integer greater than or equal to 2
  • the process of transmitting the control information adopts multiple transmission diversity mode and at least one single antenna mode, and the first time period and the second time period may be some of the control information transmission process.
  • other time periods may also transmit the control information by using transmit diversity (based on the same or different cyclic delay values) and a single antenna.
  • the process of transmitting the data information includes N time periods (N is a positive integer greater than or equal to 2), the N time periods respectively correspond to N data information transmissions, and the transmission method 100 can be applied to transmit the data.
  • N is a positive integer greater than or equal to 2
  • the method of transmitting the data information adopts multiple transmission diversity mode and at least one single antenna mode, and the first time period and the second time period may be during the data information transmission process.
  • other time periods may also transmit the data information by using transmit diversity (based on the same or different cyclic delay values) and a single antenna.
  • FIG. 9 is still another schematic diagram of a process of transmitting control information.
  • the process of transmitting control information includes N time segments (N is a positive integer greater than or equal to 3), and the N time segments respectively correspond to N times of transmission, wherein the N transmissions include a single antenna mode and an SD-CDD transmit diversity mode, wherein the first time period may correspond to the first control information transmission, or may correspond to the third control information transmission. It may also correspond to the Nth control information transmission, and the second time period may correspond to the second control information transmission.
  • the process of transmitting control information includes N time periods.
  • the transmission method in this embodiment of the present application may also be described as:
  • the communication device performs the following method to send the nth control information:
  • the nth control information is the same as all or part of the resource indicated by the first control information, and the nth time period has a time interval with the first time period, n and N are positive integers and 3 ⁇ n ⁇ N, N is the total number of times the control information is sent.
  • the process of transmitting information includes N time segments.
  • the transmission method in this embodiment of the present application may also be described as:
  • the communication device performs the following information to send the nth information:
  • the nth information is all or part of the content of the first information, and the nth time period has a time interval with the first time period, n and N are positive integers, and 3 ⁇ n ⁇ N, N is the total number of times information is sent.
  • loop delay value may be the same or different each time the control information is transmitted by the transmit diversity method.
  • the first time period may include a plurality of sub-time periods, for example, as shown in FIG. 9, the first time period may include a first sub-time period and a second sub-time period, and the first sub-time period may Corresponding to the third control information transmission in FIG. 9, the second sub-time period may correspond to the fourth control information transmission in FIG.
  • the cyclic delay value when the SD-CDD transmission is used in the first sub-period may be the same as or different from the cyclic delay value when the SD-CDD transmission is used in the first sub-period.
  • the transmission mode is changed, including switching in a single antenna mode and a transmit diversity mode based on different cyclic delay values, which can be adapted due to different cyclic delay values. More complex scenarios of vehicle relative speed distribution help to eliminate the degradation of the receiving performance caused by the relative speed of the vehicle to control information reception, thereby improving the performance of the surrounding vehicle receiving control information.
  • the transmission mode is changed, including switching between single antenna mode and transmit diversity mode based on different cyclic delay values, which can adapt to more complex vehicle relative speed distribution due to different cyclic delay values.
  • the scene helps to eliminate the degradation of the receiving performance caused by the relative speed of the vehicle to the data information reception, thereby improving the performance of the surrounding vehicle receiving the data information.
  • FIG. 10 is a schematic flowchart of a transmission method 200 according to an embodiment of the present application.
  • an execution body of the transmission method 200 may be a transmitting end (communication device), such as UE1 in FIG.
  • the transmission method 200 includes:
  • S210 Send, by using a transmit diversity manner, the first control information according to the first cyclic delay value in the first time period;
  • the transmitting end generates the first control information and the second control information, and sends the first control information by using a transmit diversity manner according to the first cyclic delay value in the first time period, and according to the second loop in the second time period.
  • the second control information is sent by using the transmit diversity mode, wherein the first control information and the resource indicated by the second control information are all or part of the same, and the first time period and the second time period have a time interval.
  • the first loop delay value is different from the second loop delay value.
  • FIG. 11 is another schematic flowchart of a transmission method 200 according to an embodiment of the present application. As shown in FIG. 11, the transmission method 200 includes:
  • S211 Send, by using a transmit diversity manner, the first information according to the first cyclic delay value in the first time period;
  • the sending end generates the first information and the second information, and sends the first information by using a transmit diversity manner according to the first cyclic delay value in the first time period, and according to the second cyclic delay value in the second time period. Transmitting the second information by using a transmit diversity mode, where the content of the first information and the second information are all or partially the same, the first time period and the second time period have a time interval, and the first cycle delay The value is different from the second loop delay value.
  • the first information is first data information
  • the second information is second data information, where the content of the first data information and the second data information are the same.
  • the first information is first control information
  • the second information is second control information
  • the content of the first control information and the second control information are all or partially the same.
  • first information and the second information are control information, or the first information and the second information are both data information.
  • the change of the transmission mode helps to adapt to a more complicated scenario of the relative speed distribution of the vehicle. Eliminating the relative speed of the vehicle reduces the reception performance of the control information reception.
  • the change of transmission mode helps to adapt to more complex scenarios of vehicle relative speed distribution, and eliminates the relative speed of the vehicle to receive data information.
  • the reception performance is reduced.
  • FIG. 12 is a schematic diagram of a process of transmitting control information.
  • the first time period may be sent before the second time period, and the first control information is sent according to the first cyclic delay value.
  • the SD-CDD transmit diversity mode, the second transmission of the second control information is based on the second cyclic delay value, and the SD-CDD transmit diversity mode is adopted.
  • first time period and the second time period have no practical order, and may be that the first time period is before the second time period, or the second time period is before the first time period.
  • the process of transmitting control information shown in FIG. 12 is also applicable to the process of transmitting data information, that is, the first time the first data information is sent according to the first cyclic delay value, and the SD-CDD transmit diversity mode is adopted.
  • the second data information is transmitted twice in accordance with the second cyclic delay value, and the SD-CDD transmit diversity mode is adopted.
  • FIG. 13 is another schematic diagram of a process of transmitting control information.
  • the second time period may be between the first time period, and the second control information is sent for the first time according to the second cycle delay.
  • the value is SD-CDD transmit diversity mode, and the second transmission of the first control information is based on the first cyclic delay value, and the SD-CDD transmit diversity mode is adopted.
  • the process of transmitting control information shown in FIG. 13 is also applicable to the process of transmitting data information, that is, the first time the second data information is sent according to the second cyclic delay value, and the SD-CDD transmit diversity mode is adopted, and the second The first transmission of the first data information is performed according to the first cyclic delay value, and the SD-CDD transmission diversity mode is adopted.
  • FIG. 14 is a schematic diagram showing switching between transmission modes.
  • the transmitting UE has three transmitting antennas (or three antenna ports), and the transmitting UE can be on the PSCCH signals on two of the ports.
  • the short-term cyclic delay is added to transmit the PSCCH signal.
  • the switch S when the switch S is connected to S1, it means that the PSCCH signal is transmitted using the SD-CDD transmit diversity mode based on the first cyclic delay value (using the antenna port port 1 transmission and the antenna port port 2); when S is connected to S2, Indicates that the PSCCH signal is transmitted using SD-CDD transmit diversity transmission based on the second cyclic delay value (using antenna port port 1 transmission and antenna port port 3).
  • the S connection switches between S1 and S2. That is, each time the PSCCH signal is transmitted, the transmission technology used is an SD-CDD transmit diversity transmission method based on different cyclic delay values.
  • the PSCCH signal in FIG. 14 may also be a PSSCH signal.
  • FIG. 14 is only schematic. There may be no switch S in the actual antenna, and the transmit power of the antenna may be controlled by the baseband chip to switch in a transmit diversity manner based on different cyclic delay values, for example, based on the first When the SD-CDD mode of the cyclic delay value is transmitted, the antenna port Port1 and the antenna port Port2 are used, and the antenna ports Port1 and Port3 are used for transmission in the SD-CDD mode based on the second cyclic delay value, if the first transmission is performed.
  • the SD-CDD mode based on the first cyclic delay value is used, and the baseband chip can control the transmit power of the antenna port Port3 to be 0 or less than a certain power threshold, and the first information can be sent through the antenna ports Port1 and Port2, for example, The first control information; the second transmission uses an SD-CDD mode based on the second cyclic delay value, and the baseband chip can control the transmit power of the antenna port Port2 to be 0 or less than a certain power threshold, and then can pass the antenna port.
  • Port1 and Port3 send the second information, for example, the second control information.
  • sequence of the first time period and the second time period is preset, or
  • the sequence of the first time period and the second time period is randomly determined, or
  • the sequence of the first time period and the second time period is determined according to the indication information of the network device.
  • the transmission method 200 further includes:
  • the third control information is sent in a single antenna manner, where the third control information and the resource indicated by the first control information are all or part of the same, and the first time period and the third time period have time. interval.
  • the transmitting end generates control information, and sends the first control information by using a transmit diversity manner according to the first cyclic delay value in the first time period, and adopts the transmit diversity according to the second cyclic delay value in the second time period.
  • the method sends the second control information, and sends the third control information in a single antenna manner in a third time period.
  • the transmission method 200 further includes:
  • the third information is sent in a single antenna manner, wherein the third information and the content of the first information are all or partially the same, and the first time period and the third time period have time intervals.
  • the sending end generates the first information and the second information, and sends the first information by using a transmit diversity manner according to the first cyclic delay value in the first time period, and according to the second cyclic delay value in the second time period.
  • the second information is sent in a transmit diversity manner
  • the third information is sent in a single antenna manner in a third time period.
  • the transmission mode is changed, including switching in a single antenna mode and a transmit diversity mode based on different cyclic delay values, which can be adapted due to different cyclic delay values. More complex scenarios of vehicle relative speed distribution help to eliminate the degradation of the receiving performance caused by the relative speed of the vehicle to control information reception, thereby improving the performance of the surrounding vehicle receiving control information.
  • the transmission mode is changed, including switching between single antenna mode and transmit diversity mode based on different cyclic delay values, which can adapt to more complex vehicle relative speed distribution due to different cyclic delay values.
  • the scene helps to eliminate the relative loss of the vehicle and the reception performance degradation caused by the control information reception, thereby improving the performance of the surrounding vehicle receiving the data information.
  • sequence of the first time period, the second time period, and the third time period may be preset; or,
  • the sequence of the first time period, the second time period, and the third time period is randomly determined; or,
  • the sequence of the first time period, the second time period, and the third time period is determined according to the indication information sent by the network device.
  • the process of transmitting the control information includes N time periods (N is a positive integer greater than or equal to 2), and the transmission method 200 can be applied to any two time periods of the process of transmitting the control information, for example, transmitting the control information.
  • the method uses multiple transmit diversity modes and at least one single antenna mode.
  • the first time period and the second time period may be two time periods in the transmission of the control information, and other time periods may also adopt transmit diversity (
  • the control information is transmitted based on the same or different cyclic delay values and a single antenna.
  • the process of transmitting the data information includes N time periods (N is a positive integer greater than or equal to 2), and the transmission method 200 can be applied to any two time periods of the process of transmitting the data information, for example, transmitting the data.
  • N is a positive integer greater than or equal to 2
  • the transmission method 200 can be applied to any two time periods of the process of transmitting the data information, for example, transmitting the data.
  • multiple transmit diversity modes and at least one single antenna mode are adopted.
  • the first time period and the second time period may be two time periods in the data information transmission process, and other time periods may also adopt transmit diversity.
  • the data information is transmitted (based on the same or different cyclic delay values) and a single antenna.
  • the process of transmitting control information includes N time segments (N is a positive integer greater than or equal to 3), and the N time segments respectively correspond to N transmissions, wherein the N transmissions include a single antenna manner.
  • the SD-CDD transmit diversity mode wherein the first time period may correspond to the first control information transmission, and the second time period may correspond to the third time control information transmission; or the first time period may correspond to The third control information transmission, the second time period can correspond to N times control information transmission.
  • the third time period may correspond to the second control information transmission in FIG.
  • the process of transmitting control information includes N time periods.
  • the transmission method in this embodiment of the present application may also be described as:
  • the communication device performs the following method to send the nth control information:
  • the nth control information is the same as all or part of the resource indicated by the first control information, and the nth time period has a time interval with the first time period, n and N are positive integers and 3 ⁇ n ⁇ N, N is the total number of times the control information is sent.
  • the process of transmitting information includes N time segments.
  • the transmission method in this embodiment of the present application may also be described as:
  • the communication device performs the following information to send the nth information:
  • the nth information is all or part of the content of the first information, and the nth time period has a time interval with the first time period, n and N are positive integers, and 3 ⁇ n ⁇ N, N is the total number of times information is sent.
  • the content of the first information, the second information, and the nth information are all or partially the same.
  • the processing module 310 is further configured to use the transmit diversity mode in the first time period, and send the first control information by using the transceiver module 320.
  • the communication device in the embodiment of the present application adopts different transmission modes in the process of transmitting control information, which helps to improve the receiving performance of communication devices with different relative speeds, thereby avoiding the degradation of reception performance that may be caused by only one transmission mode. .
  • the nth control information is the same as all or part of the resource indicated by the first control information, and the nth time period has a time interval with the first time period, n and N are positive integers and 3 ⁇ n ⁇ N, N is the total number of times the control information is sent.
  • the sequence of the first time period and the second time period is determined according to the indication information sent by the network device.
  • processing module 310 is specifically configured to:
  • the processing module 310 is further configured to: send, by using the transceiver module 320, third control information by using the transmit diversity mode according to the second cyclic delay value in the third time period, where the third control information and the first control information The indicated resources are all or partially the same, and the third time period has a time interval with the first time period.
  • the communication device in the embodiment of the present application changes the transmission mode when transmitting control information, including switching in a single antenna mode and a transmit diversity mode based on different cyclic delay values, which helps to adapt to more complex vehicle relative speeds.
  • the distributed scene eliminates the relative speed of the vehicle and reduces the reception performance of the control information reception.
  • the first loop delay value is different from the second loop delay value.
  • sequence of the first time period and the third time period is preset, or
  • the sequence of the first time period and the third time period is randomly determined, or
  • the sequence of the first time period and the third time period is determined according to the indication information sent by the network device.
  • FIG. 16 shows a schematic block diagram of a communication device 400 according to an embodiment of the present application.
  • the communication device 400 includes:
  • the processing module 410 is configured to generate first control information and second control information
  • the processing module 410 is further configured to send the first control information by using the transmit and receive module 420 according to the first cyclic delay value according to the first cyclic delay value in the first time period;
  • the first control information and all the resources indicated by the second control information are all the same, the first time period and the second time period have a time interval, the first cycle delay value and the second cycle delay The values are different.
  • the nth control information is sent by the transceiver module 420 in a single antenna manner
  • sequence of the first time period and the second time period is preset, or
  • the third control information is sent by the transceiver module 420, and the third control information is the same as all or part of the resource indicated by the first control information, the first time period and the The third time period has a time interval.
  • sequence of the first time period and the third time period is preset, or
  • the sequence of the first time period and the third time period is randomly determined, or
  • FIG. 17 shows a schematic block diagram of a communication device 500 according to an embodiment of the present application.
  • the communication device 500 includes:
  • the sequence of the first time period and the second time period is preset, or the sequence of the first time period and the second time period is randomly determined, or the first time The sequence of the segment and the second time period is determined according to the indication information sent by the network device.
  • the sequence of the first time period and the third time period is preset, or the sequence of the first time period and the third time period is randomly determined, or the first time The sequence of the segment and the third time period is determined according to the indication information sent by the network device.
  • the first information and the second information are data information.
  • FIG. 18 shows a schematic block diagram of a communication device 600 according to an embodiment of the present application. As shown in FIG. 18, the communication device 600 includes:
  • the processing module 610 sends, by using the transceiver module 620, the second information by using the transmit diversity mode according to the second cyclic delay value in the second time period;
  • the sequence of the first time period and the third time period is preset, or the sequence of the first time period and the third time period is randomly determined, or the first time The sequence of the segment and the third time period is determined according to the indication information sent by the network device.
  • the first information and the second information are data information.
  • FIG. 19 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • the communication device 700 includes one or more processors 701, one or more memories 702, and one or more transmitters 703.
  • the processor 701 is configured to control the transmitter 703 to transmit and receive signals
  • the memory 702 is configured to store a computer program
  • the processor 701 is configured to call and run the computer program from the memory 702, such that the communication device performs the transmission method implementation of the present application.
  • the processor 701 can be used to perform corresponding operations and/or functions of the processing module 310 in the communication device 300.
  • the transmitter 703 can be used to perform corresponding operations and/or functions of the transceiver module 320 in the communication device 300. , will not repeat them here.
  • the “transmitter” in the embodiment of the present application may also be referred to as “communication interface”, “transceiver” and the like.
  • FIG. 20 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 includes one or more processors 801, one or more memories 802, and one or more transmitters 803.
  • the processor 801 is configured to control the transmitter 803 to send and receive signals
  • the memory 802 is configured to store a computer program
  • the processor 801 is configured to call and run the computer program from the memory 802, so that the communication device performs the transmission method implementation of the present application.
  • the processor 801 can be used to perform corresponding operations and/or functions of the processing module 410 in the communication device 400.
  • the transmitter 803 can be used to perform corresponding operations and/or functions of the transceiver module 420 in the communication device 400. , will not repeat them here.
  • FIG. 21 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application.
  • the communication device 900 includes one or more processors 901, one or more memories 902, and one or more transmitters 903.
  • the processor 901 is configured to control a transmitter 903 to transmit and receive signals
  • the memory 902 is configured to store a computer program
  • the processor 901 is configured to call and run the computer program from the memory 902, so that the communication device performs the transmission method implementation of the present application.
  • the processor 901 can be used to perform corresponding operations and/or functions of the processing module 510 in the communication device 500.
  • the transmitter 903 can be used to perform corresponding operations and/or functions of the transceiver module 520 in the communication device 500. , will not repeat them here.
  • FIG. 22 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.
  • the communication device 1000 includes one or more processors 1001, one or more memories 1002, and one or more transmitters 1003.
  • the processor 1001 is configured to control a transmitter 1003 to transmit and receive signals
  • the memory 1002 is configured to store a computer program
  • the processor 1001 is configured to call and run the computer program from the memory 1002, so that the communication device performs the transmission method implementation of the present application.
  • the processor 1001 can be used to perform corresponding operations and/or functions of the processing module 610 in the communication device 600.
  • the transmitter 1003 can be used to perform corresponding operations and/or functions of the transceiver module 620 in the communication device 600. , will not repeat them here.
  • the embodiment of the present application further provides a chip system, which is applied to a communication device, where the chip system includes: at least one processor, at least one memory, and an interface circuit, where the interface circuit is responsible for information interaction between the chip system and the outside world.
  • the at least one memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform the various aspects described above The operation of the communication device in the method described.
  • the embodiment of the present application further provides a communication system, including: a communication device, and/or a network device; wherein the communication device is the communication device described in the foregoing aspects.
  • the embodiment of the present application further provides a computer program product, which is applied to a communication device, the computer program product comprising a series of instructions, when the instruction is executed, to perform the method described in the above aspects.
  • the operation of the communication device is not limited to a communication device.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. 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
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the computer program product can include one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de transmission et un dispositif de communication. Le procédé consiste : à utiliser, pendant une première période, un procédé de diversité d'émission pour transmettre des premières informations de commande ; à utiliser, pendant une seconde période, un procédé d'antenne unique pour transmettre des secondes informations de commande, les ressources indiquées dans les premières informations de commande et les secondes informations de commande étant entièrement identiques ou partiellement identiques, un intervalle de temps s'écoulant entre la première période et la seconde période. Dans le procédé de transmission d'un mode de réalisation de la présente invention, l'utilisation de différents procédés d'émission dans un processus de transmission d'informations de commande facilite l'amélioration de l'efficacité de réception de dispositifs de communication ayant différentes vitesses relatives, ce qui permet d'empêcher la détérioration de l'efficacité de réception résultant de l'utilisation d'un seul procédé d'émission.
PCT/CN2019/074533 2018-02-13 2019-02-02 Procédé de transmission et dispositif de communication Ceased WO2019158002A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201810149393.0 2018-02-13
CN201810149393 2018-02-13
CN201810302165.2 2018-04-04
CN201810302165.2A CN110166093B (zh) 2018-02-13 2018-04-04 一种传输方法和通信设备

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WO2019158002A1 true WO2019158002A1 (fr) 2019-08-22

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US20210185669A1 (en) * 2019-12-13 2021-06-17 Qualcomm Incorporated Increase diversity of slot aggregation using slot-specific cyclic delay diversity

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CN101039136A (zh) * 2006-03-15 2007-09-19 华为技术有限公司 基于空频编码的多天线发射分集方法及其系统
WO2007124566A1 (fr) * 2006-04-28 2007-11-08 Nortel Networks Limited Systèmes et procédés de transmission adaptive
CN101826944A (zh) * 2009-03-03 2010-09-08 中兴通讯股份有限公司 多点协作传输方法和装置
CN104283595A (zh) * 2013-07-08 2015-01-14 中国移动通信集团公司 一种发射分集模式切换的控制方法、装置及电路
CN107371253A (zh) * 2016-05-13 2017-11-21 中兴通讯股份有限公司 一种传输信息的方法和装置

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CN101039136A (zh) * 2006-03-15 2007-09-19 华为技术有限公司 基于空频编码的多天线发射分集方法及其系统
WO2007124566A1 (fr) * 2006-04-28 2007-11-08 Nortel Networks Limited Systèmes et procédés de transmission adaptive
CN101826944A (zh) * 2009-03-03 2010-09-08 中兴通讯股份有限公司 多点协作传输方法和装置
CN104283595A (zh) * 2013-07-08 2015-01-14 中国移动通信集团公司 一种发射分集模式切换的控制方法、装置及电路
CN107371253A (zh) * 2016-05-13 2017-11-21 中兴通讯股份有限公司 一种传输信息的方法和装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210185669A1 (en) * 2019-12-13 2021-06-17 Qualcomm Incorporated Increase diversity of slot aggregation using slot-specific cyclic delay diversity
US11805499B2 (en) * 2019-12-13 2023-10-31 Qualcomm Incorporated Increase diversity of slot aggregation using slot-specific cyclic delay diversity

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