WO2021120153A1 - 一种数据传输的方法、装置和系统 - Google Patents

一种数据传输的方法、装置和系统 Download PDF

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Publication number
WO2021120153A1
WO2021120153A1 PCT/CN2019/126893 CN2019126893W WO2021120153A1 WO 2021120153 A1 WO2021120153 A1 WO 2021120153A1 CN 2019126893 W CN2019126893 W CN 2019126893W WO 2021120153 A1 WO2021120153 A1 WO 2021120153A1
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WIPO (PCT)
Prior art keywords
information
control information
downlink control
resource
terminal device
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PCT/CN2019/126893
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English (en)
French (fr)
Inventor
丁梦颖
廖树日
张鹏
许华
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/126893 priority Critical patent/WO2021120153A1/zh
Priority to EP19956454.3A priority patent/EP4072166A4/en
Priority to CN201980102558.1A priority patent/CN114747234A/zh
Publication of WO2021120153A1 publication Critical patent/WO2021120153A1/zh
Priority to US17/843,771 priority patent/US20220330209A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/086—Load balancing or load distribution among access entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • This application relates to the field of communications, and in particular to a method, device and system for data transmission.
  • User cooperation is one of the main features supported by the next-generation communication system, which can significantly increase the system capacity and network coverage.
  • the first terminal device can send the data to the collaborative terminal device via the side link, such as the second terminal device and the third terminal device
  • the second terminal device and the third terminal device send the data to the first network device, which improves the uplink transmission capability of the first terminal device.
  • the first network device can only send scheduling information carried in the Physical Downlink Control Channel (PDCCH) to one terminal device in one subframe, and the first network device needs to be in multiple subframes.
  • the scheduling information carried in the physical downlink control channel is sent to the second terminal device and the third terminal device in sequence. After receiving the scheduling information, the first terminal device sequentially sends the scheduling information to the second terminal device and the third terminal device on the side link. Sending data causes the problem of excessive delay in the data transmission process.
  • PDCCH Physical Downlink Control Channel
  • the present application provides a method, device and system for data transmission, which can reduce the time delay of data transmission.
  • a data transmission method which can be executed by a first terminal device, and the first terminal device can also be a module or a chip in the first terminal device. It may also be a chip or a system on a chip, and the method includes: receiving at least two downlink control information from a first network device in a first time slot, where the at least two downlink control information includes the first downlink control information and the second downlink control information.
  • Downlink control information where the first downlink control information is used to instruct to send the first side line information to the second terminal device on the first side line resource, and the second downlink control information is used to indicate the second side line resource
  • Upward sending second side line information to the third terminal device where the at least two downlink control information is also used to determine the order of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information;
  • the first side row information is sent to the second terminal device on the first side row resource;
  • the second side row information is sent to the second terminal device on the second side row resource.
  • the first terminal device receives a number of downlink control information from the first network device in the first time slot, and these downlink control information are used to indicate the resources of the sideline communication between the first terminal device and other terminal devices.
  • the downlink control information is also used to indicate the sequence of the transmission blocks included in each side row data, so as to solve the problem of the data blocks in the side row data transmitted simultaneously on multiple side rows in the data stream or the uplink data buffer. Priority position or sequence relationship.
  • the manner provided in the embodiment of the present application enables the first terminal device to receive different downlink control information in one time slot, which reduces The time delay of the control information delivery process is improved, and the efficiency of the overall cooperative transmission process is improved.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink Line control information and the second downlink control information are carried in the first control resource set CORESET and the second control resource set CORESET; the side line information indicated by the control information carried in the first control resource set includes the previous A data block, the side row information indicated by the control information carried in the second control resource set is included in the latter data block; or the side row information indicated by the control information carried in the first control resource set is included in the latter The side row information indicated by the control information carried in the second control resource set contains the previous data block.
  • the corresponding relationship between the ID of the control resource set (CORESET) and the transmission block TB is used to determine the location of the downlink control information transmitted in each CORESET.
  • the order of the transmission blocks included in the indicated side line information is used to determine the order of the data blocks included in the first side line information sent by the first terminal device to the second terminal device on the first side line resource, for example, when the first When the first downlink control information (Downlink Control Information, DCI) is carried in the resource control set, the data block contained in the first side row information is TB0. When the DCI1 is carried in the second resource control set, the first side The data block contained in the row information is TB1. Similarly, the corresponding rules can be reversed. The relative sequence of the data blocks contained in the sideline information sent at the same time is determined by the method in this embodiment.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The line control information is scrambled by a first wireless temporary identifier, the second downlink control information is scrambled by a second wireless temporary identifier; the first wireless temporary identifier indicates the first side line indicated by the first downlink control information The information includes the preceding data block, the second wireless temporary identifier indicates the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first wireless temporary identifier indicates the first The first side line information indicated by the downlink control information includes a subsequent data block, and the second wireless temporary identifier indicates that the second side line information indicated by the second downlink control information includes a preceding data block.
  • the scrambling information of the downlink control information can be used to determine the sequence of the data blocks in the side line information.
  • the corresponding relationship between the scrambling information and the data blocks can be determined by the natural size correspondence relationship, and can also be determined by the higher layer
  • the signaling configures the specific correspondence relationship, thereby completing the one-to-one correspondence between the downlink control information, the data block contained in the side-line data, and the side-line transmission destination terminal.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The row control information includes first indication information, and the second downlink control information includes second indication information; the first indication information indicates that the first side line information indicated by the first downlink control information includes the preceding data block, so The second indication information indicates that the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first indication information indicates that the first side line information indicated by the first downlink control information is included in the subsequent data block; A data block, where the second indication information indicates that the second side line information indicated by the second downlink control information includes the previous data block.
  • the indication information in the downlink control information can be used to determine the sequence of the data blocks in the side line information.
  • the indication information can be a hybrid automatic repeat request number or other indication information. In this simple and clear way, the corresponding relationship between the downlink control information, the data block contained in the side row data, and the side row transmission destination terminal is indicated.
  • the preceding data block is TB0, and the following data block is TB1.
  • the sequence relationship of the data blocks included in the side row information is determined, so that the relationship of the data blocks included in the multiple pieces of side row information transmitted at the same time is clearer.
  • the time domain resource of the first side row resource is the same as the time domain resource of the second side row resource, and the frequency domain resource of the first side row resource is the same as that of the second side row resource.
  • the frequency domain resources of the row resources do not overlap; or the time domain resources of the first side row resources do not overlap with the time domain resources of the second side row resources; or the time domain resources of the first side row resources do not overlap with the time domain resources of the first side row resources.
  • the time domain resources of the second side row resource are the same, the frequency domain resources of the first side row resource are the same as the frequency domain resources of the second side row resource, and the first side row resource is transmitted on the first side row resource.
  • the antenna port used for the sideline information is different from the antenna port used for transmitting the second sideline information on the second sideline resource.
  • the first terminal device uses the first side row resource for transmitting the side row information to the second terminal device, and the first terminal device uses the second side row resource to transmit the side row information to the third terminal device.
  • the resource and the second side line resource can be time division, frequency division or space division, because the first terminal device can simultaneously send two or more copies of side line information to the second terminal device in a time slot or in a smaller time unit
  • the third terminal device that is, simultaneously sending two or more sideline data to multiple cooperative terminal devices in one time slot, compared to sending sideline data to multiple coordinated terminal devices sequentially in different time slots or different time units. Compared with different terminal devices, the delay in the side-line transmission phase is reduced, and the delay in the overall process of cooperative transmission is further reduced.
  • the first side line information and the second side line information are sent in the first time slot; or the first side line information and the second side line information are sent in the second time slot.
  • the second side row information, the second time slot and the first time slot are different time slots.
  • the first terminal device can complete the transmission of several side-line data in one time slot, which saves time in the side-line transmission phase and reduces the delay of the overall coordination process. Further, if the first terminal device can receive multiple copies of downlink control information in the first time slot, it can also
  • the buffer status report is used to determine the first downlink control information and the second downlink control information
  • the buffer status report is used to indicate the The data amount of the transport block included in the first side line information and the data amount of the transport block included in the second side line information.
  • the first terminal device sends a buffer status report to the first network device for the first network device to determine the data transmission demand of the first terminal device, and determines the downlink control information according to the buffer status report, and the first network device
  • the device schedules resources according to the actual needs of the first terminal device, and realizes dynamic and reasonable allocation of resources.
  • a data transmission method which can be executed by a first network device, and the first network device can also be a module or chip in the first network device. It may also be a chip or a system on a chip, and the method includes: the first network device determines at least two downlink control information, where the at least two downlink control information includes first downlink control information and second downlink control information, and the first The downlink control information is used to instruct the first terminal device to send the first side row resource of the first side row information to the second terminal device, and the second downlink control information is used to instruct the first terminal device to send the first side row resource to the third terminal device. Sending the second side row resource of the second side row information; the first network device sends the at least two downlink control information to the first terminal device in the first time slot.
  • the first terminal device receives a number of downlink control information from the first network device in the first time slot, and these downlink control information are used to indicate the resources of the sideline communication between the first terminal device and other terminal devices.
  • the downlink control information is also used to indicate the sequence of the transmission blocks included in each side row data, so as to solve the problem of the data blocks in the side row data transmitted simultaneously on multiple side rows in the data stream or the uplink data buffer. Priority position or sequence relationship.
  • the manner provided in the embodiment of the present application enables the first terminal device to receive different downlink control information in one time slot, which reduces The time delay of the control information delivery process is improved, and the efficiency of the overall cooperative transmission process is improved.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink Line control information and the second downlink control information are carried in the first control resource set CORESET and the second control resource set CORESET; the side line information indicated by the control information carried in the first control resource set includes the previous A data block, the side row information indicated by the control information carried in the second control resource set is included in the latter data block; or the side row information indicated by the control information carried in the first control resource set is included in the latter The side row information indicated by the control information carried in the second control resource set contains the previous data block.
  • the corresponding relationship between the ID of the control resource set (CORESET) and the transmission block TB is used to determine the location of the downlink control information transmitted in each CORESET.
  • the order of the transmission blocks included in the indicated side line information is used to determine the order of the data blocks included in the first side line information sent by the first terminal device to the second terminal device on the first side line resource, for example, when the first When the first downlink control information (Downlink Control Information, DCI) is carried in the resource control set, the data block contained in the first side row information is TB0. When the DCI1 is carried in the second resource control set, the first side The data block contained in the row information is TB1. Similarly, the corresponding rules can be reversed. The relative sequence of the data blocks contained in the sideline information sent at the same time is determined by the method in this embodiment.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The line control information is scrambled by a first wireless temporary identifier, the second downlink control information is scrambled by a second wireless temporary identifier; the first wireless temporary identifier indicates the first side line indicated by the first downlink control information The information includes the preceding data block, the second wireless temporary identifier indicates the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first wireless temporary identifier indicates the first The first side line information indicated by the downlink control information includes a subsequent data block, and the second wireless temporary identifier indicates that the second side line information indicated by the second downlink control information includes a preceding data block.
  • the scrambling information of the downlink control information can be used to determine the sequence of the data blocks in the side line information.
  • the corresponding relationship between the scrambling information and the data blocks can be determined by the natural size correspondence relationship, and can also be determined by the higher layer
  • the signaling configures the specific correspondence relationship, thereby completing the one-to-one correspondence between the downlink control information, the data block contained in the side-line data, and the side-line transmission destination terminal.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The row control information includes first indication information, and the second downlink control information includes second indication information; the first indication information indicates that the first side line information indicated by the first downlink control information includes the preceding data block, so The second indication information indicates that the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first indication information indicates that the first side line information indicated by the first downlink control information is included in the subsequent data block; A data block, where the second indication information indicates that the second side line information indicated by the second downlink control information includes the previous data block.
  • the indication information in the downlink control information can be used to determine the sequence of the data blocks in the side line information.
  • the indication information can be a hybrid automatic repeat request number or other indication information. In this simple and clear way, the corresponding relationship between the downlink control information, the data block contained in the side row data, and the side row transmission destination terminal is indicated.
  • the preceding data block is TB0, and the following data block is TB1.
  • the sequence relationship of the data blocks included in the side row information is determined, so that the relationship of the data blocks included in the multiple pieces of side row information transmitted at the same time is clearer.
  • the time domain resource of the first side row resource is the same as the time domain resource of the second side row resource, and the frequency domain resource of the first side row resource is the same as that of the second side row resource.
  • the frequency domain resources of the row resources do not overlap; or the time domain resources of the first side row resources do not overlap with the time domain resources of the second side row resources; or the time domain resources of the first side row resources do not overlap with the time domain resources of the first side row resources.
  • the time domain resources of the second side row resource are the same, the frequency domain resources of the first side row resource are the same as the frequency domain resources of the second side row resource, and the first side row resource is transmitted on the first side row resource.
  • the antenna port used for the sideline information is different from the antenna port used for transmitting the second sideline information on the second sideline resource.
  • the first terminal device uses the first side row resource for transmitting the side row information to the second terminal device, and the first terminal device uses the second side row resource to transmit the side row information to the third terminal device.
  • the resource and the second side line resource can be time division, frequency division or space division, because the first terminal device can simultaneously send two or more copies of side line information to the second terminal device in a time slot or in a smaller time unit
  • the third terminal device that is, simultaneously sending two or more sideline data to multiple cooperative terminal devices in one time slot, compared to sending sideline data to multiple coordinated terminal devices sequentially in different time slots or different time units. Compared with different terminal devices, the delay in the side-line transmission phase is reduced, and the delay in the overall process of cooperative transmission is further reduced.
  • the first side line information and the second side line information are sent in the first time slot; or the first side line information and the second side line information are sent in the second time slot.
  • the second side row information, the second time slot and the first time slot are different time slots.
  • the first terminal device can complete the transmission of several side-line data in one time slot, which saves time in the side-line transmission phase and reduces the delay of the overall coordination process. Further, if the first terminal device can receive multiple copies of downlink control information in the first time slot, and can also send sideline data to multiple terminal devices according to the downlink control information, the transmission efficiency can be further improved .
  • the buffer status report is used to determine the first downlink control information and the second downlink control information
  • the buffer status report is used to indicate the The data amount of the transport block included in the first side line information and the data amount of the transport block included in the second side line information.
  • the first terminal device sends a buffer status report to the first network device for the first network device to determine the data transmission demand of the first terminal device, and determines the downlink control information according to the buffer status report, and the first network device
  • the device schedules resources according to the actual needs of the first terminal device, and realizes dynamic and reasonable allocation of resources.
  • first response information from the second terminal device is received, where the first response information is used to indicate whether the second terminal device successfully receives the first side line information;
  • the first response information determines third downlink control information; the third downlink control information is sent to the second terminal device, and the third downlink control information is used to indicate the first uplink resource or the third side row resource, so
  • the first uplink resource is used to transmit first uplink data, the third side row resource is used to transmit third side row data;
  • the second response information from the third terminal device is received, and the second response information is used To indicate whether the third terminal device successfully receives the second side line information; determine fourth downlink control information according to the second response information; send the fourth downlink control information to the third terminal device, so
  • the fourth downlink control information is used to indicate a second uplink resource or a fourth side row resource, the second uplink resource is used to transmit second uplink data, and the fourth side row resource is used to transmit or fourth side row data
  • the first uplink data or the third side row data is determined according to the data
  • the first network device determines that the second terminal device and the third terminal device correctly received the side information from the first terminal device and the data in it by receiving the response information of the second terminal device and the third terminal device .
  • the first network device configures uplink resources or configures downlink resources for the second terminal device and the third terminal device according to the response information, which is used to complete the transmission to the first network device or the first target terminal device, thereby completing the first network device to the whole Resource allocation of the collaboration process.
  • the first uplink data from the second terminal device is received on the first uplink resource; the second uplink data from the third terminal device is received on the second uplink resource. data.
  • the second terminal device and the third terminal device send the received sideline data from the first terminal device to the first terminal device to complete the second stage of the cooperation process, and realize the transmission to the first terminal device.
  • the transmission cooperation of the device is
  • the third aspect provides a communication device, and the beneficial effects can be referred to the description of the first aspect, which will not be repeated here.
  • the communication device may be a first terminal device, a chip or a module in the first terminal device, or a chip or a system-on-chip.
  • the device includes: a transceiver unit for receiving data from the first terminal device in the first time slot.
  • At least two pieces of downlink control information for a network device the at least two pieces of downlink control information including first downlink control information and second downlink control information, and the first downlink control information is used to indicate resources on the first side Upward sending the first side line information to the second terminal device, the second downlink control information is used to instruct to send the second side line information to the third terminal device on the second side line resource, the at least two downlink control information It is also used to determine the order of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information; the transceiving unit is also used to forward the second side line resource to the second side line resource.
  • the terminal device sends the first sideline information; the transceiver unit is further configured to send the second sideline information to the second terminal device on the second sideline resource.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink Line control information and the second downlink control information are carried in the first control resource set CORESET and the second control resource set CORESET; the side line information indicated by the control information carried in the first control resource set includes the previous A data block, the side row information indicated by the control information carried in the second control resource set is included in the latter data block; or the side row information indicated by the control information carried in the first control resource set is included in the latter The side row information indicated by the control information carried in the second control resource set contains the previous data block.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The line control information is scrambled by a first wireless temporary identifier, the second downlink control information is scrambled by a second wireless temporary identifier; the first wireless temporary identifier indicates the first side line indicated by the first downlink control information The information includes the preceding data block, the second wireless temporary identifier indicates the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first wireless temporary identifier indicates the first The first side line information indicated by the downlink control information includes a subsequent data block, and the second wireless temporary identifier indicates that the second side line information indicated by the second downlink control information includes a preceding data block.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The row control information includes first indication information, and the second downlink control information includes second indication information; the first indication information indicates that the first side line information indicated by the first downlink control information includes the preceding data block, so The second indication information indicates that the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first indication information indicates that the first side line information indicated by the first downlink control information is included in the subsequent data block; A data block, where the second indication information indicates that the second side line information indicated by the second downlink control information includes the previous data block.
  • the preceding data block is TB0, and the following data block is TB1.
  • the time domain resource of the first side row resource is the same as the time domain resource of the second side row resource, and the frequency domain resource of the first side row resource is the same as that of the second side row resource.
  • the frequency domain resources of the row resources do not overlap; or the time domain resources of the first side row resources do not overlap with the time domain resources of the second side row resources; or the time domain resources of the first side row resources do not overlap with the time domain resources of the first side row resources.
  • the time domain resources of the second side row resource are the same, the frequency domain resources of the first side row resource are the same as the frequency domain resources of the second side row resource, and the first side row resource is transmitted on the first side row resource.
  • the antenna port used for the sideline information is different from the antenna port used for transmitting the second sideline information on the second sideline resource.
  • the transceiving unit is further configured to send the first side line information and the second side line information in the first time slot; or the transceiving unit is further configured to The first side line information and the second side line information are sent in a second time slot, and the second time slot and the first time slot are different time slots.
  • the transceiver unit is further configured to send a buffer status report to the first network device, and the buffer status report is used to determine the first downlink control information and the second 2. Downlink control information.
  • the buffer status report is used to indicate the data volume of the transport block included in the first side line information and the data volume of the transport block included in the second side line information.
  • the communication device may be a first network device, a chip or a module in the first network device, or a chip or a system-on-chip.
  • the device includes a processing unit for determining at least two downlink control information, so The at least two downlink control information includes first downlink control information and second downlink control information, and the first downlink control information is used to instruct the first terminal device to send the second terminal device to the second terminal device on the first side row resource.
  • the second downlink control information is used to instruct the first terminal device to send the second side line information to the third terminal device on the second side line resource, and the at least two downlink control information are also used To determine the order of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information; the transceiver unit is configured to send the at least two downlink transmission blocks to the first terminal device in the first time slot Control information.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink Line control information and the second downlink control information are carried in the first control resource set CORESET and the second control resource set CORESET; the side line information indicated by the control information carried in the first control resource set includes the previous A data block, the side row information indicated by the control information carried in the second control resource set is included in the latter data block; or the side row information indicated by the control information carried in the first control resource set is included in the latter The side row information indicated by the control information carried in the second control resource set contains the previous data block.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The line control information is scrambled by a first wireless temporary identifier, the second downlink control information is scrambled by a second wireless temporary identifier; the first wireless temporary identifier indicates the first side line indicated by the first downlink control information The information includes the preceding data block, the second wireless temporary identifier indicates the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first wireless temporary identifier indicates the first The first side line information indicated by the downlink control information includes a subsequent data block, and the second wireless temporary identifier indicates that the second side line information indicated by the second downlink control information includes a preceding data block.
  • the at least two pieces of downlink control information are further used to determine the sequence of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information including: the first downlink The row control information includes first indication information, and the second downlink control information includes second indication information; the first indication information indicates that the first side line information indicated by the first downlink control information includes the preceding data block, so The second indication information indicates that the second side line information indicated by the second downlink control information is included in the subsequent data block; or the first indication information indicates that the first side line information indicated by the first downlink control information is included in the subsequent data block; A data block, where the second indication information indicates that the second side line information indicated by the second downlink control information includes the previous data block.
  • the preceding data block is TB0, and the following data block is TB1.
  • the time domain resource of the first side row resource is the same as the time domain resource of the second side row resource, and the frequency domain resource of the first side row resource is the same as that of the second side row resource.
  • the frequency domain resources of the row resources do not overlap; or the time domain resources of the first side row resources do not overlap with the time domain resources of the second side row resources; or the time domain resources of the first side row resources do not overlap with the time domain resources of the first side row resources.
  • the time domain resources of the second side row resource are the same, the frequency domain resources of the first side row resource are the same as the frequency domain resources of the second side row resource, and the first side row resource is transmitted on the first side row resource.
  • the antenna port used for the sideline information is different from the antenna port used for transmitting the second sideline information on the second sideline resource.
  • the first side row information and the second side row information are sent in the first time slot; or the first side row information and the second side row information
  • the information is sent in a second time slot, and the second time slot and the first time slot are different time slots.
  • the transceiver unit is further configured to receive a buffer status report from the first terminal device, and the buffer status report is used to determine the first downlink control information and the second downlink control information. Downlink control information, the buffer status report is used to indicate the data volume of the transport block included in the first side line information and the data volume of the transport block included in the second side line information.
  • the transceiver unit is further configured to receive first response information from the second terminal device, and the first response information is used to indicate whether the second terminal device successfully receives the The first side line information; the processing unit is further configured to determine third downlink control information according to the first response information; the transceiving unit is further configured to send the third downlink control information to the second terminal device Information, the third downlink control information is used to indicate the first uplink resource or the third side row resource, the first uplink resource is used to transmit the first uplink data, and the third side row resource is used to transmit the third side Line data; the transceiver unit is further configured to receive second response information from the third terminal device, the second response information is used to indicate whether the third terminal device successfully receives the second side line information The processing unit is further configured to determine fourth downlink control information according to the second response information; the transceiving unit is further configured to send the fourth downlink control information to the third terminal device, and the first Fourth, the downlink control information is used to indicate the second uplink resource or the fourth side row
  • the transceiving unit is further configured to receive first uplink data from the second terminal device on the first uplink resource; the transceiving unit is further configured to Receiving the second uplink data from the third terminal device on the second uplink resource.
  • a data transmission method is provided.
  • the method can be executed by a second terminal device.
  • the second terminal device can also be a module or a chip in the second terminal device, and the second terminal device can also be It is a chip or a system on a chip, and the method includes: receiving first side row information from a first terminal device, where the first side row information includes first side row control information and first side row data, and the first side row
  • the control information is used to indicate the first transmission resource for transmitting the first side row data, the first side row control information is indicated by the first downlink control information, and the first downlink control information belongs to at least two downlink control information,
  • the first downlink control information is used to indicate a first side row resource for transmitting the first side row control information and the first side row data, and the first side row resource includes the first transmission resource;
  • the second terminal device receives the first side line information from the first terminal device, including the first side line control information and the first side line data, and the first side line control detailed information further indicates the receiving side The time-frequency resource of the line data, so that the second terminal device receives the side line data according to the instruction of the control information, and forwards it to complete the cooperation with the first terminal device.
  • first response information is sent to the first network device, where the first response information is used to indicate whether the second terminal device successfully receives the first side line data;
  • the second terminal device receives third downlink control information from the first network device, where the third downlink control information is used to indicate a first uplink resource, the first uplink resource is used to transmit the first uplink data, and the first uplink resource is used to transmit the first uplink data.
  • the downlink control information is determined according to the first response information; sending first uplink data to the first network device includes: sending the first uplink data to the first network device on the first uplink resource data.
  • the second terminal device forwards the data from the first terminal device to the first network device, assists the first terminal device to complete the uplink cooperative transmission process, and improves the first terminal by using the transmission capability of the second terminal device
  • the transmission capacity of the device expands the range of data transmission by the first terminal device.
  • first response information is sent to the first network device, where the first response information is used to indicate whether the second terminal device successfully receives the first side line data;
  • Third downlink control information of a network device the third downlink control information is used to indicate a third side row resource, the third side row resource is used to transmit the third side row data, the third downlink control The information is determined according to the first response information;
  • sending third side row data to the first target terminal device includes: sending the third side row data to the first target terminal device on a third side row resource data.
  • the second terminal device forwards the data from the first terminal device to the first network device, assists the first terminal device in completing the transmission process of sideline cooperation, and expands the scope of data transmission by the first terminal device.
  • the communication device may be a second terminal device, a chip or module in the second terminal device, or a chip or a system-on-chip.
  • the device includes: a transceiver unit for receiving the first terminal device from the first terminal device.
  • Side row control information the first side row control information is used to indicate a first transmission resource for transmitting the first side row data
  • the first side row control information is indicated by the first downlink control information
  • Row control information belongs to at least two downlink control information.
  • the first downlink control information is used to indicate a first side row resource for transmitting the first side row control information and the first side row data.
  • the side line resource includes the first transmission resource; the transceiving unit is further configured to receive first side line data from the first terminal device on the first transmission resource; the transceiving unit is further configured to Send the first uplink data to the first network device, where the first uplink data is determined according to the first side row data, or the transceiver unit is further configured to send the third side row data to the first target terminal device, so The third side row data is determined according to the first side row data.
  • the transceiver unit is further configured to send first response information to the first network device, and the first response information is used to indicate whether the second terminal device successfully receives the first network device.
  • Side line data the transceiving unit is further configured to receive third downlink control information from the first network device, the third downlink control information is used to indicate a first uplink resource, and the first uplink resource is used for transmission The first uplink data and the third downlink control information are determined according to the first response information; the transceiving unit is further configured to send first uplink data to the first network device including: the transceiving The unit is further configured to send the first uplink data to the first network device on the first uplink resource.
  • the transceiver unit is further configured to send first response information to the first network device, and the first response information is used to indicate whether the second terminal device successfully receives the first network device.
  • Side row data the transceiving unit is further configured to receive third downlink control information from the first network device, the third downlink control information is used to indicate a third side row resource, the third side row resource is used When transmitting the third side line data, the third downlink control information is determined according to the first response information; the transceiver unit is further configured to send a third side line to the first target terminal device
  • the data includes: the transceiver unit, which is further configured to send the third side line data to the first target terminal device on a third side line resource.
  • the embodiments of the present application provide a computer-readable storage medium or a non-volatile storage medium.
  • the computer-readable storage medium or the non-volatile storage medium stores instructions or programs.
  • the computer When running on a computer, the computer is caused to execute the methods described in the above aspects, or when the instructions or programs are executed on one or more processors, the communication device including the one or more processors is caused to execute the above aspects The method described.
  • the embodiments of the present application provide a computer program product, the computer program product is used to store a computer program, when the computer program runs on a computer, the computer executes any of the foregoing Methods.
  • an embodiment of the present application provides a chip or a device for transmitting instruction information, including: at least one processor, the at least one processor is coupled to a memory, the memory includes instructions, and the at least one processor runs The instruction causes the device for transmitting a common signal to execute the method related to the first aspect or the second aspect or the fifth aspect described above.
  • a communication device in a tenth aspect, includes one or more processors, and one or more memories or non-volatile storage media. Instructions or programs are stored, and when the one or more processors execute the instructions or programs, the communication device or the one or more processors execute the foregoing aspects and the methods in the embodiments of the present application.
  • a terminal device or a communication device configured to execute the method involved in the first or third aspect.
  • a network device or a communication device configured to execute the method involved in the second aspect.
  • an embodiment of the present application provides a system that includes the communication device related to the third aspect and the communication device related to the fourth aspect.
  • Fig. 1 is a schematic architecture diagram of a system according to an embodiment of the present application.
  • Fig. 2 is a data transmission method, a first terminal device, a second terminal device, a third terminal device, a first network device, and a system according to an embodiment of the present application;
  • Fig. 3 is a schematic diagram of a time-frequency resource according to an embodiment of the present application.
  • Fig. 4 is a schematic diagram of a time-frequency resource according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of a time-frequency resource according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram corresponding to Embodiment 2 of the present application.
  • FIG. 7 is a schematic structural diagram corresponding to Embodiment 3 of the present application.
  • FIG. 8 is a schematic structural diagram corresponding to Embodiment 4 of the present application.
  • FIG. 9 is a schematic structural diagram corresponding to Embodiment 5 of the present application.
  • FIG. 10 is a schematic flowchart of a transmission method according to Embodiment 2 of the present application.
  • FIG. 11 is a schematic flowchart of a transmission method according to Embodiment 3 of the present application.
  • FIG. 12 is a schematic flowchart of a transmission method according to Embodiment 4 of the present application.
  • FIG. 13 is a schematic flowchart of a transmission method according to Embodiment 5 of the present application.
  • 14a-14c are schematic diagrams of time-frequency resources of side-line control information and data information according to an embodiment of the present application.
  • Fig. 15 is a first terminal device according to an embodiment of the present application.
  • Fig. 16 is a second terminal device according to an embodiment of the present application.
  • Fig. 17 is a third terminal device according to an embodiment of the present application.
  • Fig. 18 is a first network device according to an embodiment of the present application.
  • FIG. 19 is a first target terminal device according to an embodiment of the present application.
  • Fig. 20 is a communication device according to an embodiment of the present application.
  • Fig. 21 is a network communication device according to an embodiment of the present application.
  • Fig. 22 is a block diagram of an exemplary communication circuit according to an embodiment of the present application.
  • Fig. 1 is a schematic diagram of a possible application scenario of an embodiment of the present application.
  • the application scenario may include multiple terminal devices and network devices.
  • the first terminal device, the second terminal device, and the third terminal device form a user cooperation group.
  • the first terminal device sends the second terminal device and the third terminal device to the second terminal device and the third terminal device through the side link.
  • the terminal device sends data.
  • the second terminal device and the third terminal device forward the received data to the first network device.
  • There are many ways to forward the data such as amplification forwarding, decoding forwarding, compression forwarding, etc.
  • the second terminal device and the third terminal device may also forward data from the first terminal device to other terminal devices, for example, to the first target terminal device.
  • the first terminal device may be called a source terminal device or a source user equipment (SUE)
  • the second terminal device and the third terminal device may be called a cooperative terminal device or a cooperative user equipment (CUE)
  • the first target The terminal device may be called Target User Equipment (TUE).
  • TUE Target User Equipment
  • the first terminal device sends data to the first network device or the first target terminal device under the cooperation of the second terminal device and the third terminal device to complete the coordinated transmission or intermediate transmission between each terminal device. Following the transmission process.
  • UE Cooperation UE Cooperation
  • UE Relay User Equipment Relay
  • Sidelink Relay Sidelink Relay
  • Internet of Vehicles Internet of Vehicles.
  • the first terminal device, second terminal device, third terminal device, fourth terminal device, and first target terminal device involved in this application may include various devices with wireless communication functions or among such devices
  • the unit, component, module, device, chip, or SOC, the device with wireless communication function may be, for example, an in-vehicle device, a wearable device, a computing device or other devices connected to a wireless modem, a mobile station (MS) , Terminal (terminal) or user equipment (User Equipment, UE), etc.
  • MS mobile station
  • Terminal Terminal
  • UE User Equipment
  • the first to fourth terminal devices and the first target terminal device are vehicle-mounted equipment, they can be placed or installed in the vehicle.
  • the vehicle-mounted equipment can be regarded as a part of the vehicle, or as a module or module installed in the vehicle.
  • the device may also be called an on-board unit (OBU).
  • OBU on-board unit
  • the first to fourth terminal devices and the first target terminal device involved in the embodiments of this application may also include devices that provide users with voice and/or data connectivity. Specifically, they include devices that provide users with voice, or include devices that provide users with voice and/or data connectivity.
  • the terminal device can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • RAN radio access network
  • the terminal device may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) terminal equipment , Machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit, subscriber station (subscriber) station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user Agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • M2M/MTC Machine-to-machine/machine-type communications
  • IoT Internet of things
  • subscriber unit subscriber station (subscriber) station)
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • access terminal access terminal
  • user terminal user terminal
  • user Agent
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication service
  • PCS cordless phones
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the first to fourth terminal devices and the first target terminal device involved in the embodiments of the present application may also be wearable devices.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may be a terminal device, or a module for realizing the functions of the terminal device.
  • the module may be set in the terminal device or may be set independently of the terminal device.
  • the module may be, for example, a chip, a chip system, or System on chip, etc.
  • the source terminal device refers to a terminal device that has a requirement for uplink data transmission or sideline data transmission, and the source terminal device needs a cooperating terminal device to assist in completing the transmission.
  • the source terminal device sends the data that needs to be transmitted to other terminal devices in the user group, such as a cooperative terminal device, and the cooperative terminal device completes the forwarding of the data.
  • a cooperative terminal device refers to a terminal device that assists other terminal devices in transmitting data.
  • the cooperative terminal device receives data from a source terminal device and forwards the data to a destination designated by the source terminal device, such as a target terminal device or a base station.
  • the target terminal device refers to the terminal device to which the source terminal device finally transmits data or information through the cooperation terminal device during the user collaboration process, and refers to the destination to which the source terminal device intends to send the data.
  • a network device for example, includes an access network (access network, AN) device, such as a first network device (for example, an access point), which may refer to the wireless terminal device through one or more cells on the air interface in the access network
  • the communication device or, for example, a network device in a vehicle-to-everything (V2X) technology is a road side unit (RSU).
  • the first network device may be used to convert received air frames and IP packets into each other, and serve as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network device may include a long term evolution (LTE) system or an evolved first network device (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system.
  • B may comprise a fifth generation mobile communication technology (the 5 th generation, 5G) a new air interface (new radio, NR) system (also referred to as NR system)
  • Next Generation node B next generation node B, gNB
  • CU centralized unit
  • DU distributed unit
  • cloud radio access network Cloud radio access network
  • Sidelink refers to the link between the terminal device and the terminal device.
  • the uplink refers to the link through which the terminal device transmits information to the network device
  • the downlink refers to the link through which the terminal device receives information from the network device.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first power control factor and the second power control factor are only for distinguishing different power control factors, and do not necessarily indicate the difference in content, priority, or importance of the two power control factors.
  • the first terminal device, the second terminal device, the third terminal device, the fourth terminal device, the first target terminal device, and the first network device are taken as examples to describe the embodiments of the present application in more detail.
  • Fig. 2 is a data transmission method, a first terminal device, a second terminal device, a third terminal device, and a first network device that perform the data transmission method according to an embodiment of the present application, as well as the first terminal device, the second terminal device, and the second network device.
  • the first terminal device includes a transceiver unit 1501 and a processing unit 1502.
  • the second terminal device includes a transceiver unit 1601 and a processing unit 1602.
  • the third terminal device includes a transceiving unit 1701 and a processing unit 1702.
  • the first network device includes a transceiver unit 1801 and a processing unit 1802.
  • the first target terminal connection device includes a transceiver unit 1901 and a processing unit 1902.
  • the fourth terminal device has the same structure and function as the third terminal device, and also includes a transceiver unit and a processing unit.
  • the transceiver unit 1501, the transceiver unit 1601, the transceiver unit 1701, and the transceiver unit 1801 are sending information
  • the time can be a sending unit or a transmitter
  • the transceiver unit 1501, the transceiver unit 1601, the transceiver unit 1701, and the transceiver unit 1801 can be a receiving unit or a receiver when receiving information
  • the transceiver unit can be a transceiver.
  • the receiver may be a radio frequency circuit.
  • the storage unit is used to store computer instructions.
  • the processor is in communication connection with the memory, and the processor executes the computer instructions stored in the memory to make The first terminal device, the second terminal device, the third terminal device, and the first network device execute the method involved in the embodiment of FIG. 2.
  • the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC).
  • the transceiving unit 1501, the transceiving unit 1601, the transceiving unit 1701, and the transceiving unit 1801 may be input and/or output interfaces, pins or circuits.
  • the processing unit can execute the computer-executable instructions stored in the storage unit, so that the chip in the first terminal device, the second terminal device, the third terminal device, or the first network device executes the method involved in FIG. 2.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit in the terminal located outside the chip, such as a read-only memory (Read Only Memory). Only Memory (ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (RAM), etc.
  • FIG. 2 is a flowchart of the method in Embodiment 1 of this application, and the specific steps of the data transmission method involved are as follows:
  • Step S201 The processing unit 1802 of the first network device determines at least two downlink control information (Downlink Control Information, DCI), where the at least two downlink control information includes first downlink control information and second downlink control information.
  • DCI Downlink Control Information
  • the first downlink control information is used to instruct to send the first side row information to the second terminal device on the first side row resource
  • the second downlink control information is used to instruct to send the first side row information to the third terminal device on the second side row resource. Send the second side line information.
  • the first side row information includes first side row control information and first side row data
  • the second side row information includes second side row control information and second side row data
  • Side-line resources include at least side-line control information transmission resources and side-line data transmission resources, such as the physical side-link control channel (PSCCH) used to transmit side-line control information and the physical side used to transmit side-line data
  • PSCCH physical side-link control channel
  • a sidelink shared channel Physical Sidelink Shared Channel, PSSCH
  • a sideline resource is used for the first terminal device to communicate with a cooperating terminal device, such as a second terminal device or the third terminal device, on a designated resource.
  • the first side row resource is used to send the first side row information, that is, the first side row resource includes both the PSCCH resource used to send the first side row control information and the PSSCH resource used to send the first side row data.
  • the first network device may pre-configure a series of side-line communication resource pools for side-line transmission between the first terminal device and the second terminal device, such as PSCCH resource pool and PSSCH resource pool.
  • the resource pool includes time
  • the configuration of domain resources, frequency domain resources, and time domain resources may be periodic.
  • the first side row resource used to instruct the first terminal device to send the first side row control information and the first side row data to the second terminal device is the first network device in the PSCCH resource pool and
  • the PSSCH resource pool is selected, for example, a certain PSCCH resource and PSSCH resource are selected according to the time or the type of transmission service or the amount of data transmitted from the side of the first terminal device, and are notified to the first terminal device through the first downlink control information.
  • the first network device will also pre-configure the PSCCH resource pool and PSSCH resource pool used for sideline transmission between the first terminal device and the third terminal device.
  • the first terminal device needs to send to the third terminal device
  • the first network device selects PSCCH resources and PSSCH resources from the resource pool for communication between the first terminal device and the third terminal device, and informs the first terminal through the second downlink control information Device specific PSCCH and PSSCH resource information.
  • step S200 Before step S201, optionally, there may also be step S200. In other embodiments of the present application, there may also be step S200 or some of the steps in step S200. For example, in the flowchart 10 corresponding to Embodiment 2 of the present application, in step S200 Before S301, there may be steps S200A and S200B. In step S200:
  • the transceiver unit 1501 of the first terminal device sends a scheduling request (SR) to the first network device, and the scheduling request is used to notify the first network device of the first terminal
  • SR scheduling request
  • the device has a data transmission requirement, and the first network device needs to further configure transmission resources.
  • the scheduling request is also used to trigger the first network device to send downlink control information to the first terminal device.
  • the transceiver unit 1801 of the first network device sends fifth downlink control information to the first terminal device after receiving the scheduling request.
  • the fifth downlink control information carries uplink scheduling information, and the uplink scheduling information is used to instruct the first terminal device to send the first terminal device to the first terminal device.
  • a network device sends a time-frequency resource for the buffer status report. After receiving the uplink scheduling information, the first terminal device determines on which resource to send the buffer status report.
  • the transceiver unit 1501 of the first terminal device sends a Buffer Status Report (BSR) to the first network device according to the uplink scheduling information, and the transceiver unit 1801 of the first network device receives the buffer status from the first terminal device report.
  • BSR Buffer Status Report
  • the buffer status report is used to indicate the data volume of the first side line data and the data volume of the second side line data.
  • the buffer status report may also be used to indicate the total amount of data that the first terminal device needs to send to the first network device.
  • the first network device determines at least two downlink control information according to at least one of the following information: a scheduling request from the first terminal device, a buffer status report from the first terminal device, the first terminal device and the second terminal device.
  • the channel conditions of the first terminal device and the third terminal device the channel conditions of the first terminal device and the first network device, the channel conditions of the second terminal device and the first network device, the third terminal device and the Channel conditions of the first network device.
  • the first terminal device has 1000 bits of data to be transmitted to the first network device.
  • the first terminal device sends a scheduling request to the first network device and receives the downlink control information sent by the first network device.
  • the uplink scheduling information in the control information sends a buffer status report BSR to the first network device, and the first network device knows the 1000-bit data upload requirement of the first terminal device after receiving the buffer status report of the first terminal device.
  • the first network device searches for idle terminal devices near the area where the first terminal device is located and measures the channel conditions between each idle terminal device and the first terminal device and the channel conditions between each idle terminal device and the first network device, and determines the second The terminal device and the third terminal device can be used as the cooperative terminal device of the first terminal device, the channel condition between the second terminal device or the third terminal device and the first terminal device is good, and the second terminal device or the third terminal device and the first network The channel conditions between the devices are good and have the basis for data transmission.
  • the second terminal device and the third terminal device may be the assisting terminal devices selected by the first network device in the determined assisting group, that is, this assisting group already includes several terminal devices, and the first terminal device has a data transmission requirement ,
  • the first network device determines from the plurality of terminal devices which terminal devices (for example, the second terminal device and the third terminal device) can assist the first terminal device to transmit information to the first network device.
  • the second terminal device and the third terminal device may not be in the same assistance group as the first terminal device, and when the first terminal device has a data transmission requirement, the first network device dynamically determines by means such as measurement.
  • the first network device determines the first to fourth terminal devices and the first target The terminal devices belong to the same assistance group.
  • the assistance group can also be called a collaboration group.
  • the first network device determines the data volume of the first side line data and the second side line data according to the buffer status report, each channel condition, and the capabilities of each terminal device. For example, they are 10 bits and 20 bits respectively, that is, the second terminal device
  • the first terminal device may forward 10-bit information to the first network device
  • the third terminal device may forward the 20-bit information to the first network device for the first terminal device.
  • terminal devices used to cooperate with other terminal devices to communicate with network devices may be called cooperative terminal devices, or auxiliary user equipment, relay Terminal equipment, cooperation user equipment (CUE), neighboring user equipment (NUE), etc.
  • Step S202 The transceiver unit 1801 of the first network device sends at least two downlink control messages to the first terminal device in the first time slot, and the transceiver unit 1501 of the first terminal device receives the data from the first network device in the first time slot.
  • At least two downlink control information at least two downlink control information including first downlink control information and second downlink control information
  • the first downlink control information is used to instruct the second terminal device on the first side row resource Sending the first side line information
  • the second downlink control information is used to instruct to send the second side line information to the third terminal device on the second side line resource
  • the at least two downlink control information are also used to determine the The order of the transport blocks contained in the first side line information and the transport blocks contained in the second side line information.
  • the first side row information includes first side row control information and/or first side row data
  • the second side row information includes second side row control information and/or second side row information.
  • Row data the first side line information and the second side line information may be the same side line information; the first side line information and the second side line information may also be different side line information; the first side line information and the second side line information
  • the side line information may also be the first part and the second part of a certain side line information, that is, the first side line information and the second side line information constitute the certain side line information.
  • the first time slot may be a time slot (slot), including 14 symbols.
  • the first time slot can also be other time units, for example, mini slots or subframes or resource configuration units, or several Orthogonal Frequency Division Multiplexing (OFDM) symbols.
  • a network device sends multiple downlink control information to the first terminal device in the same time slot. Compared with the method in which the first network device sends each downlink control information sequentially in multiple time slots, the time for issuing control information is reduced. Delay, improve the efficiency of cooperative transmission.
  • the transceiver unit 1801 of the first network device sends at least two pieces of downlink control information to the first terminal device at the same time, and the transceiver unit 1501 of the first terminal device also receives at least two pieces of information from the first network device at the same time.
  • Downlink control information A radio frame has a duration of 10ms, and each radio frame contains 10 subframes, so each subframe has a length of 1ms.
  • the duration of the time slot is related to the sub-carrier interval.
  • 1 radio frame has 10 subframes, 1 subframe has k time slots, and 1 time slot has 14 symbols. Among them, how many subframes are in each subframe? The number of time slots depends on the parameter ⁇ , which has 5 values, namely 0,1,2,3,4.
  • the first downlink control information may also include or be used to indicate the following information: At least one: the target terminal index ID for sideline link transmission, the sideline transmission modulation and coding scheme MCS of the first sideline data, the data volume of the first sideline data, the newness of the first sideline data Data indication information, HARQ process number of the first side row data, side row transmission power control information of the first side row data, and precoding matrix of the first side row data.
  • other downlink control information in the at least two downlink control information also includes at least one of the foregoing information.
  • the target user index ID for side-link transmission is pre-configured by high-level signaling or protocol, and is used by the first terminal device to determine the target terminal index ID for side-line communication. For example, when the target terminal index ID in the downlink control information is 3. It means that this downlink control information is used to configure the communication process with the third terminal device.
  • the side row resources include at least side row control information transmission resources and side row data transmission resources, such as a physical side row control channel PSCCH resource used to transmit side row control information and a physical side row shared channel PSSCH resource used to transmit side row data,
  • the side resource is used for the first terminal device to communicate with the cooperative terminal device, such as the second terminal device or the third terminal device, on a designated resource.
  • the side row transmission modulation and coding scheme MCS of the first side row data is the coding and modulation method of the first side row data determined by the first network device according to factors such as the side row channel conditions.
  • the new data indication information of the first side row data is used to indicate whether the first side row data sent by the first terminal device to the second terminal device is new data or is retransmitted.
  • the side-line transmission power control information of the first side-line data is used to indicate the power level of the first terminal device to transmit data on the side-line link.
  • the at least two pieces of downlink control information may also include other downlink control information corresponding to the fourth, fifth, and sixth terminal devices, and these downlink control information may respectively include at least one of various types of information included in the first downlink control information.
  • Step S203 The transceiver unit 1501 of the first terminal device sends the first sideline information to the second terminal device on the first sideline resource according to the first downlink control information.
  • the first sideline information includes the first sideline control information and For the first side line data, the transceiver unit 1601 of the second terminal device receives the first side line control information and the first side line data from the first terminal device; the first side line control information is used to instruct the transmission of the first side line data
  • the first transmission resource, the first side row resource includes the first transmission resource;
  • the transceiver unit 1501 of the first terminal device transmits the second side to the third terminal device on the second side row resource according to the second downlink control information Row information
  • the second side row information includes second side row control information and second side row data, and the transceiver unit 1601 of the third terminal device receives the second side row control information and the second side row data from the first terminal device;
  • the second side row control information is used to indicate a second transmission resource for transmitting the second side row data,
  • the first network device may configure a PSCCH resource pool for the second terminal device in advance through high-level information, including time domain resources and frequency domain resources.
  • the time domain resources may be periodic.
  • the resource used by the first side line control information sent by the first terminal device to the second terminal device is one resource in the aforementioned PSCCH resource pool.
  • the second terminal device After receiving the pre-configuration information, the second terminal device will perform blind detection on the corresponding PSCCH resource pool, for example, periodically perform blind detection.
  • the side-line control information on the PSCCH resource is received, the side-line data transmission resource indicated in the side-line control information is determined, and the side-line data transmission resource is specified in the side-line control information.
  • the side row data is received on the transmission resource of the row data.
  • the first network device will also configure a PSCCH resource pool for the third terminal device in advance through high-level information, including time domain resources and frequency domain resources.
  • the time domain resources may be periodic.
  • the resource used by the second side control information sent by the first terminal device to the third terminal device is one resource in the aforementioned PSCCH resource pool.
  • the third terminal device After receiving the pre-configured information, the third terminal device will perform blind detection on the corresponding PSCCH resource pool, for example, periodically perform blind detection.
  • the side-line control information on the PSCCH resource is received, the transmission resource of the side-line data indicated in the side-line control information is determined, and the side-line data transmission resource is specified in the side-line control information.
  • the side row data is received on the transmission resource of the row data.
  • the at least two pieces of downlink control information are also used to determine the order of the transmission blocks included in the first side line information and the transmission blocks included in the second side line information. It means that the downlink control information is also used to determine the order in which multiple data blocks contained in the side line information are retrieved from the uplink buffer.
  • the foregoing first downlink control information DCI1 indicates the transmission of the first side line data
  • the second downlink control information indicates the transmission of the second side line data.
  • the first side line data is generated by the TB that the first terminal device retrieves from the uplink buffer.
  • the second side line data is also generated based on the TB that the first terminal device fetches from the uplink buffer.
  • the final receiving end of the data also needs to know the sequence relationship between the TBs corresponding to the multiple pieces of data received, in order to successfully restore the first terminal device
  • the SUE sends the first side row data to CUE1 on the first side row resource according to DCI1, and the SUE sends the second side row data to CUE1 on the second side row resource according to DCI2.
  • the first side row data corresponds to the second side row data.
  • the TB directly has a sequence, and its sequence can be indicated in a variety of ways:
  • CORESET control resource sets
  • the first network device transmits two DCIs to the first terminal device in the same time slot
  • DCI1 is transmitted on CORESET1
  • DCI2 is transmitted on CORESET2.
  • CORESET1 and CORESET2 are pre-configured by the first network device through high-level signaling such as RRC, and include signaling in the CORESET configuration.
  • the included signaling indicates to the first terminal device whether the DCI in CORESET is used to transmit TB0 or TB1,
  • the CORESET configuration includes the first signaling, which is used to indicate that the DCI contained in the PDCCH transmitted on CORESET is used to indicate the transmission of TB0 or TB1.
  • the first signaling is 1 bit.
  • the DCI included in the PDCCH transmitted on it is used to indicate TB0
  • the first signaling in the CORESET configuration is set to a value of 1
  • the DCI included in the PDCCH transmitted on it is used to indicate TB1.
  • the first terminal device performs blind detection on CORESET1 and receives DCI1, which contains the ID of the CUE1 of the side link transmission target, and the corresponding transmission parameter configuration 1.
  • the first terminal device performs blind detection on CORESET2 and receives DCI2 , which contains the ID of CUE2 transmitted on the side link, and the corresponding transmission parameter configuration 2.
  • the DCI does not contain the ID information of the CUE, but indicates the ID of the CUE via the ID of CORESET through the configuration of high-level signaling.
  • the transmission parameter configuration includes time-frequency resources used for PSSCH transmission, MCS, HARQ information, uplink power control information, precoding and other necessary information, including time-frequency resources used for PSCCH transmission, etc.
  • CORESET control resource sets
  • the predefined rules through RRC and other high-level signaling are that the ID of CORESET1 and ID of CORESET2 corresponds to the transmission of TB0 with the smaller value, and the ID of CORESET1 and the ID of CORESET2 with the larger value corresponds to the transmission of TB1.
  • the TB that the first terminal device first fetches from the uplink buffer is called TB0, and the TB that is later fetched from the uplink buffer is called TB1.
  • the first network device determines the one-to-one correspondence between N CORESET IDs and N TBs through high-level signaling such as RRC, and uniquely corresponds to each CORESET ID To a TB, when the SUE receives DCI_i in CORESET_j, the ID of the side row CUE contained in DCI_i is q. According to the indication of high-level signaling, the IDj of CORESET_j corresponds to the transmission of TB_j, so the SUE caches the jth in the uplink TB (that is, TB_j) is processed and sent on the i-th side row resource indicated by DCI_i to the UE whose user identification ID is q.
  • high-level signaling such as RRC
  • the order of each TB contained in multiple side-line data is determined by CORESET indication signaling or its ID. Compared with the blind detection of PDCCH, the blind detection complexity of the first terminal device is effectively reduced, and the indication method is increased. flexibility.
  • DCI1 or DCI2 is carried in a Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • Multiple PDCCHs are respectively scrambled by different physical side link Radio Network Temporary Identifier (SL-RNTI), where SL-RNTI indicates that the control information contained in the PDCCH is used to indicate side link transmission.
  • SL-RNTI indicates that the control information contained in the PDCCH is used to indicate side link transmission.
  • the first network device transmits two PDCCHs to the first terminal device in the same time slot, the two PDCCHs are respectively scrambled by SL-RNTI1 and SL-RNTI2.
  • SL-RNTI1 and SL-RNTI2 are pre-configured by the first network device to the terminal device through high-level signaling such as RRC, where SL-RNTI1 indicates that the control information in the DCI1 received by the first terminal device is used to indicate side link transmission and Corresponding to the transmission of Transport Block 0 (TB0), SL-RNTI2 indicates that the control information in the DCI2 received by the first terminal device is used to indicate the side link transmission and corresponds to the transmission of TB1, where the first terminal device is from The TB taken out first from the upstream buffer is called TB0, and the TB taken out later from the upstream buffer is called TB1.
  • the first network device determines the one-to-one correspondence between N SL-RNTIs and N TBs through high-level signaling such as RRC, and uniquely corresponds to each SL-RNTI To a TB, when the SUE receives DCI_i, the ID of the side CUE contained in DCI_i is q, and the scrambling information of DCI_i is SL-RNTI_i.
  • SL-RNTI_i corresponds to the transmission of TB_j, so SUE The j-th TB (that is, TB_j) in the uplink buffer is processed and sent to the UE with the user identification ID of q on the i-th side row resource indicated by DCI_i.
  • the predefined rule is that the smaller value of SL-RNTI1 and SL-RNTI2 corresponds to the transmission of TB0, and the larger value of SL-RNTI1 and SL-RNTI2 corresponds to the transmission of TB1. Or it is pre-defined as the transmission of TB0 with the larger value of SL-RNTI1 and SL-RNTI2, and the transmission of TB1 with the smaller value of SL-RNTI1 and SL-RNTI2.
  • the TB that the first terminal device first fetches from the uplink buffer is called TB0
  • the TB that is later fetched from the uplink buffer is called TB1.
  • the predefined rule can be sorted according to the value of each SL-RNTI, the smallest value corresponds to the transmission of TB0, the second smallest value corresponds to the transmission of TB1, and the largest value corresponds to Transmission of TBN.
  • the TB that the first terminal device first fetches from the uplink buffer is called TB0, and the TB that is last fetched from the uplink buffer is called TBN.
  • the first terminal device descrambles PDCCH1 through SL-RNTI1, and the DCI1 carried by PDCCH1 includes the ID corresponding to the side link transmission target second terminal device (the second terminal device may be referred to as CUE1) and the corresponding transmission parameter configuration.
  • the ID is the ID of a group of CUEs, which is used to identify that this transmission is used for multicast.
  • SL-RNTI1 corresponds to the transmission of TB0
  • DCI1 scrambled by SL-RNTI1 contains the user identification ID corresponding to CUE1, which means that the first terminal device needs to transmit TB0 to CUE1 on the side link.
  • the first terminal device descrambles PDCCH2 through SL-RNTI2.
  • the DCI2 carried by PDCCH2 includes the ID corresponding to the third terminal device (the third terminal device may be called CUE2) for sidelink transmission, and the corresponding transmission parameter configuration 2;
  • SL-RNTI2 corresponds to the transmission of TB1
  • DCI2 scrambled by SL-RNTI2 contains the user identification ID corresponding to CUE2, which means that the first terminal device needs to transmit TB1 to CUE2 on the side link.
  • the transmission parameter configuration includes at least one of the following information: time-frequency resources used for side-line link transmission, side-line transmission modulation and coding scheme MCS, data amount of side-line data, new data indication information of side-line data , The HARQ process number of the side row data, the side row transmission power control information of the side row data, or the precoding matrix of the side row data.
  • the first network device configures the target ID in DCI1 to be 2, representing that the cooperating UE is the second terminal device; DCI1 is scrambled via SL-RNTI1, and SL-RNTI1 indicates that the information in DCI1 corresponds to side-line transmission and the information in DCI1
  • the control information corresponds to the transmission of TB0, and the amount of side row data in DCI1 is 10 bits.
  • DCI1 contains the following information:
  • the target terminal index ID is 2, indicating that the communication target is the second terminal device communication, the data volume of the side row data is 10 bits, and the size of the indicating TB0 is 10 bits, that is, the first terminal device fetches 10 bits of data from the uplink buffer.
  • the data is TB0, and the data is encoded and modulated to obtain the first side line data.
  • the side row resource indicated in DCI1 is the first side row resource, which is used by the first terminal device to send the first side row control information and the first side row data to the second terminal device.
  • the first transmission resource is a part of the first side row resource, and the first transmission resource is used to transmit the first side row data.
  • the first terminal device uses the SL-RNTI scrambling information to determine the sequence of each TB included in the multiple pieces of side line data, and this indication method is relatively simple and clear.
  • DCI1 contains HARQ process number 1
  • DCI2 contains HARQ process number 2.
  • the HARQ process number of the side link that the base station may allocate is ⁇ a(0), a(1),...a(N) ⁇ from small to large, and each number is a non-negative integer.
  • the DCI containing the smaller HARQ process number corresponds to the transmission of TB0
  • the DCI containing the larger HARQ process corresponds to the transmission of TB1.
  • the first terminal device determines the sequence of the TBs included in the multiple pieces of side row data by determining the size of the HARQ included in the DCI. This indication method is relatively easy to implement, and the corresponding relationship between the two can be expressed relatively clearly.
  • the first terminal device obtains the size of TB0 according to the configuration information in DCI1. For example, the first terminal device may determine the size of TB0 according to the data volume field of the side row data carried in DCI. In addition, the first terminal device The terminal device may also calculate the size of TB0 according to information such as time-frequency resources and MCS carried by DCI1; similarly, the first terminal device may also determine the size of TB1 according to the configuration information in DCI2. The first terminal device sequentially fetches TB0 and TB1 from the data buffer, and generates first side line data and second side line data respectively, or corresponding to codeword 0 and codeword 1, respectively.
  • the first terminal device sends the first side row control information and the first side row data to the second terminal device according to DCI1, where the first side row control information is carried on the PSCCH and sent, and the first side row control information is used to instruct to send the first side row control information.
  • the first side row control information is scrambled by the cooperative terminal ID contained in DCI1, that is, scrambled by the ID of the user index corresponding to the second terminal device, or the first side row control information includes the cooperative terminal ID carried in DCI1.
  • the first side row data is carried on the PSSCH and sent, specifically carried on the first transmission resource.
  • the second terminal device blindly detects the PSCCH and decodes the first sideline data carried on the PSCCH through its own ID.
  • the second terminal device uses its own ID to send the first sideline control information to the first terminal device After the decoding is successful, the first transmission resource indicated in the first side-line control information is determined; or after the second terminal device successfully decodes the first side-line data carried on the PSCCH, the coordinated terminal contained in the side-line link control information If the ID is its own ID, the second terminal device receives the first side line data on the first transmission resource.
  • the first terminal device sends the second side row control information and the second side row data to the third terminal device according to DCI2, where the second side row control information is carried on the PSCCH and sent, and the second side row control information is used to indicate The second transmission resource of the second side row data is sent.
  • the second side control information is scrambled by the cooperative terminal ID contained in the DCI2, that is, scrambled by the ID corresponding to the third terminal device, or the second side control information includes the cooperative terminal ID carried in the DCI2.
  • the second side row data is borne and sent on the PSSCH, and is specifically borne on the second transmission resource.
  • the third terminal device blindly detects the PSCCH and uses its own ID to decode the second side line data carried on the PSCCH.
  • the third terminal device uses its own ID to send the second side line control information to the first terminal device After the decoding is successful, the second transmission resource indicated in the second side line control information is determined; or after the third terminal device successfully decodes the second side line data carried on the PSCCH, the coordinated terminal contained in the side line link control information If the ID is its own ID, the third terminal device receives the second side line data on the second transmission resource.
  • the first side row resource includes a first transmission resource, and the first transmission resource is used to transmit the first side row data.
  • the second side row resource includes a second transmission resource, and the second transmission resource is used to transmit the second side row data.
  • the specific relationship between the first transmission resource and the second transmission resource in the time domain or frequency domain is diverse, including but not limited to the following methods:
  • the time domain resource of the first transmission resource is the same as the time domain resource of the second transmission resource, and the frequency domain resource of the first transmission resource does not overlap with the frequency domain resource of the second transmission resource.
  • the non-overlapping frequency domain resources means that the first side row resources and the second side row resources occupy completely different frequency domains, and the same time domain resources means that the first terminal device simultaneously transmits the first side row data and the second side row data at the same time. It can also mean that the first side line data and the second side line data are sent in one time slot or within several symbols.
  • the first terminal device simultaneously sends two or more copies of sideline data to the second terminal device and the third terminal device in one time slot, that is, two or more sideline data are simultaneously sent to the second terminal device and the third terminal device in one time slot.
  • multiple cooperative terminal devices reduce the time delay of the side-line transmission process and save time for the overall coordination process.
  • the relationship between the time domain and frequency domain resources of the first transmission resource used to transmit the first side row data and the second transmission resource used to transmit the second side row data is as follows:
  • the time domain resource of the first transmission resource is the same as the time domain resource of the second transmission resource, and the frequency domain resource of the first transmission resource and the frequency domain resource of the second transmission resource have no overlap;
  • Method A2 In another case, the time domain resources of the first transmission resource may partially overlap with the time domain resources of the second transmission resource, and the frequency domain resources of the first transmission resource and the frequency domain resources of the second transmission resource do not overlap. section.
  • the first terminal device can transmit multiple TBs to different CUEs in one time unit (for example, a time slot), reducing the transmission delay of the first stage.
  • DCI1 and DCI2 are carried in time-frequency resources used for downlink transmission, and DCI1 and DCI2 are transmitted in one time slot, and the first terminal device transmits to the second terminal device according to DCI1 and DCI2.
  • PSCCH1, PSSCH1, PSCCH2 and PSSCH2 are sent to the third terminal device, the first side line data is carried in PSSCH1, and the second side line data is carried in PSSCH2.
  • PSCCH and PSSCH can be carried in time domain resources for uplink transmission and sent.
  • the time domain resource of the first transmission resource is the same as the time domain resource of the second transmission resource, and the frequency domain resource of the first transmission resource and the frequency domain resource of the second transmission resource have no overlapping part.
  • the relationship between the transmission resources of PSCCH1 and PSCCH2 can also be similar to the relationship between the transmission resources of PSSCH1 and PSSCH2, that is, frequency division multiplexing can also be performed.
  • the first side line information includes first side line control information and first side line data
  • the second side line information includes second side line control information and second side line data
  • the first side line where the first side line information is located The row resource and the second side row resource where the second side row information is located may also be time-division multiplexed.
  • the SUE needs to independently generate the first side line data and the second side line data in the baseband according to the configuration information of DCI1 and DCI2 and then send them at the same time.
  • the first side line data is generated through TB0, and the second side line data is generated through TB1. Generate, increase the processing delay.
  • the aforementioned one time unit may be one time slot, one mini-slot, or several symbols, or one resource configuration unit, or one subframe, or other time units.
  • P_CMAX is the maximum power allowed for transmission by the terminal device on each carrier
  • M_RB is the resource size for PSSCH transmission.
  • the basic power of PSSCH transmission is the target received power of the receiving end (P 0 (j)+10 ⁇ log 10 (2 ⁇ ⁇ M RB )) and the lateral path loss ( ⁇ (j) ⁇ PL( The sum of q)), ⁇ TF + ⁇ (l) ⁇ is the fine-tuning part of the transmission power.
  • P 0 (j) is physically the received power of each resource block (RB) at the receiving end.
  • the received power is based on the 15KHz subcarrier interval, 10 ⁇ log 10 ( 2 ⁇ ⁇ M RB ) is related to the total number of RBs allocated by the terminal device and the actual subcarrier spacing.
  • PL() is the estimation of the path loss
  • ⁇ () is the information of the system configuration, which is related to the path loss.
  • MIMO Multiple-input Multiple-output
  • [Delta] TF is not zero
  • TF [Delta] associated with the MCS PSSCH transmission different MCS because most have their own Optimize the target receiving power, so the transmission power needs to be adjusted according to different MCS.
  • the aforementioned parameters are related to open-loop power control, with a long configuration and change cycle
  • ⁇ () is a closed-loop power control parameter, which can be adjusted during each dynamic scheduling process.
  • the PSSCH transmission power cannot exceed the maximum transmission power P CMAX allowed by the terminal device.
  • the first terminal device can jointly obtain the transmission power through the frequency domain resources of PSSCH1 and the frequency domain resources of PSSCH2.
  • the number of RBs included in the frequency domain resource of PSSCH1 is denoted as M 1
  • the subcarrier interval is denoted as ⁇ 1
  • the number of RBs included in the frequency domain resource of PSSCH2 is denoted as M 2
  • the subcarrier interval is denoted as ⁇ 2 .
  • the total transmission power of the side link including PSSCH1 and PSSCH2 is as follows:
  • P PSSCH min ⁇ P CMAX ,P 0 (j)+ ⁇ (j) ⁇ PL(q)+10 ⁇ log 10 (2 ⁇ ⁇ (M 1 +M 2 ))+ ⁇ TF + ⁇ (l) ⁇
  • the subcarrier spacing of PSSCH1 and PSSCH2 may be different.
  • the total side uplink transmission power including PSSCH1 and PSSCH2 is as follows:
  • Manner B The time domain resource of the first transmission resource and the time domain resource of the second transmission resource do not overlap. That is, the first terminal device only sends sideline data to one cooperative terminal device at a time.
  • the specific frequency domain relationship is as follows:
  • Manner B1 the time domain resource of the first transmission resource and the time domain resource of the second transmission resource do not overlap, and the frequency domain resource of the first transmission resource is the same as the frequency domain resource of the second transmission resource;
  • Manner B2 the time domain resource of the first transmission resource and the time domain resource of the second transmission resource do not overlap, and the frequency domain resource of the first transmission resource is different from the frequency domain resource of the second transmission resource;
  • the time domain resource of the first transmission resource and the time domain resource of the second transmission resource may be different mini-slots in the same time slot, or may be in different time slots.
  • the power division problem caused by frequency division multiplexing in mode A is avoided.
  • the maximum power of side link transmission is 23 dBm
  • the sum of the power of PSSCH1 and PSSCH2 is not greater than 23 dBm.
  • the transmission power of both PSSCH1 and PSSCH2 can reach a maximum of 23 dBm, which improves the coverage of the transmission from the first terminal to the second terminal and the transmission from the second terminal to the third terminal.
  • DCI1 and DCI2 are carried in time-frequency resources used for downlink transmission, and DCI1 and DCI2 are transmitted in one time slot, and the first terminal device transmits to the second terminal device according to DCI1 and DCI2.
  • PSCCH1, PSSCH1, PSCCH2 and PSSCH2 are transmitted to the third terminal device.
  • PSCCH and PSSCH can be carried in time domain resources for uplink transmission and sent.
  • the first side row data is carried in PSSCH1, and the second side row data is carried in PSSCH2.
  • the time domain resources of the first transmission resource and the time domain resources of the second transmission resource occupy different mini-slots in one time slot.
  • the frequency domain resource of the transmission resource is different from the frequency domain resource of the second transmission resource.
  • the first side line data and the second side line data are respectively sent to the second terminal device and the third terminal device in one time slot. Compared with sending in different time slots in sequence, this method reduces The delay of side-line transmission is reduced.
  • the relationship between the transmission resources of PSCCH1 and PSCCH2 can also be similar to the relationship between the transmission resources of PSSCH1 and PSSCH2, that is, time division multiplexing can also be performed.
  • the first side line information includes first side line control information and first side line data
  • the second side line information includes second side line control information and second side line data
  • the first side line where the first side line information is located The row resource and the second side row resource where the second side row information is located may also be time-division multiplexed.
  • Method C The time domain resource of the first transmission resource is the same as the time domain resource of the second transmission resource, the frequency domain resource of the first transmission resource is the same as the frequency domain resource of the second transmission resource, and the first transmission resource is transmitted on the first side
  • the antenna port used for line data is different from the antenna port used for transmitting the second side line data in the second transmission resource. That is, the transmission time-frequency resources of multiple sideline data can be space-division multiplexed.
  • the first terminal device transmits TB0 to CUE1 through antenna port 1 (or multiple antenna ports), for example, the first terminal device transmits TB0 to CUE1 through antenna port 2 (or Multiple antenna ports) transmit TB1 to CUE2.
  • the time domain resource of the first transmission resource is the same as the time domain resource of the second transmission resource
  • the frequency domain resource of the first transmission resource is the same as the frequency domain resource of the second transmission resource.
  • the first terminal device equally distributes power on different antenna ports. For example, if the power used by the first terminal device for PSSCH transmission is P, antenna port 1 is used for PSSCH1 transmission, and antenna port 2 is used for PSSCH2 transmission, the power for PSSCH1 and PSSCH2 transmission is P/2, respectively.
  • the time domain and frequency domain resources of the first transmission resource are the same as the time domain and frequency domain resources of the second transmission resource, and the antenna ports for sideline data transmission are different.
  • PSCCH1 and PSCCH2 can also be space-division multiplexed.
  • the first side line information includes first side line control information and first side line data
  • the second side line information includes second side line control information and second side line data
  • the first side line where the first side line information is located The row resource and the second side row resource where the second side row information is located may also be time-division multiplexed.
  • this method can improve the spectrum efficiency of PSSCH transmission, so that the first network device can allocate more spectrum resources to other terminal devices for transmission.
  • the relationship between the time-frequency resource of the side-line control information sent by the first terminal device and the time-frequency resource of the side-line data is not limited to those shown in FIG. 3, FIG. 4, and FIG. 5.
  • the time-frequency resource relationship between PSCCH and PSSCH is diverse of.
  • the first terminal device transmits the first sideline control information to the second terminal device through the PSCCH, and transmits the first sideline data to the second terminal device through the PSSCH.
  • the frequency domain resources occupied by PSCCH and PSSCH are the same, but the time domain resources are different;
  • the first terminal device transmits the first side-line control information to the second terminal device through the PSCCH, and transmits the first side-line data to the second terminal device through the PSSCH.
  • the frequency domain resources occupied by PSCCH and PSSCH do not overlap, and the time domain resources partially overlap;
  • the first terminal device transmits the first sideline control information to the second terminal device through the PSCCH, and transmits the first sideline data to the second terminal device through the PSSCH.
  • the frequency domain resources occupied by the PSCCH and the PSSCH do not overlap, and the time domain resources do not overlap.
  • the first network device sends the first downlink control information, the second downlink control information and the first terminal device sends the first side line data and the second side line data within one time slot, or the first network The device transmits the first downlink control information and the second downlink control information in the first time slot, the first terminal device transmits the first side line data and the second side line data in the second time slot, and the second time slot and the second time slot A time slot is a different time slot.
  • the first network device sends at least two downlink control information and the first terminal device sends at least two sideline information within one time slot, or the first network device sends at least two downlink control information within the first time slot,
  • the first terminal device transmits at least two sideline information in the second time slot, and the second time slot and the first time slot are different time slots.
  • the first time slot and the second time slot may also be other time units, such as a subframe or a resource configuration unit or a scheduling unit.
  • FIG. 6 is a schematic diagram of Embodiment 2 of the present application
  • FIG. 10 is a flowchart of the method of Embodiment 2 of the present application.
  • the uplink data transmission of the first terminal device is divided into two stages.
  • the first terminal device sends the first side line data and the second side line data to the second terminal device and the third terminal device, respectively.
  • Row data in the second stage, the second terminal device sends the first uplink data to the first network device, and the third terminal device sends the second uplink data to the first network device.
  • Figure 10 The specific process is shown in Figure 10:
  • step S301 there may also be step S300, and in step S300:
  • S300A When the first terminal device has an uplink data transmission demand, the transceiver unit 1501 of the first terminal device sends a scheduling request to the first network device. Refer to S200A for details.
  • S300B The transceiver unit 1801 of the first network device sends downlink control information to the first terminal device after receiving the scheduling request. For details, refer to S200B.
  • the transceiver unit 1501 of the first terminal device sends a buffer status report to the first network device, and the transceiver unit of the first network device receives the buffer status report from the first terminal device.
  • S301 can refer to S200C for details.
  • the determining unit 1802 of the first network device determines at least two pieces of downlink control information, where the at least two pieces of downlink control information include first downlink control information and second downlink control information.
  • the transceiving unit 1801 of the first network device sends the first downlink control information and the second downlink control information to the first terminal device, and the transceiving unit 1501 of the first terminal device receives the first downlink control information from the first network device And the second downlink control information.
  • the transceiver unit 1501 of the first terminal device sends to the second terminal device the first sideline information including the first sideline control information and the first sideline data according to the first downlink control information, and the second terminal device transmits and receives
  • the unit 1601 receives the first side line information from the first terminal device, including the first side line control information and the first side line data; the transceiver unit 1501 of the first terminal device sends the second line information to the third terminal device according to the second downlink control information.
  • the side line information includes the second side line control information and the second side line data.
  • the transceiver unit 1601 of the third terminal device receives the second side line control information and the second side line data from the first terminal device.
  • S304 can refer to S203 for details.
  • the transceiver unit 1601 of the second terminal device sends first response information to the first network device, and the transceiver unit 1801 of the first network device receives the first response information from the second terminal device.
  • the first response information is used to indicate the Whether the second terminal device successfully receives the first side line data;
  • the transceiver unit 1701 of the third terminal device sends the second response message to the first network device, and the transceiver unit 1801 of the first network device receives the first data from the third terminal device.
  • Second response information where the second response information is used to indicate whether the third terminal device successfully receives the second side line data.
  • the second terminal device generates a first response message as an ACK after successfully receiving and successfully decoding the first side line data from the first terminal device and sends it to the first network device to inform the first terminal device The first side line data is successfully received.
  • the third terminal device also sends an ACK to the first network device after successfully receiving and decoding the second side line data.
  • the transceiving unit 1801 of the first network device sends third downlink control information to the second terminal device, and the transceiving unit 1801 of the first network device sends fourth downlink control information to the third terminal device.
  • the processing unit 1802 of the first network device determines the third downlink control information according to the first response information, and determines the fourth downlink control information according to the second response information;
  • the third downlink control information is used to indicate the first uplink resource
  • the first uplink resource is used to transmit the first uplink data
  • the fourth downlink control information is used to indicate the second uplink resource
  • the second uplink resource is used to transmit the second uplink data
  • the first uplink data is determined based on the first side row data
  • the second uplink data is determined based on the second side row data.
  • the first network device After receiving the ACKs from the second terminal device and the third terminal device, the first network device configures the uplink data transmission resource for the second terminal device, that is, the first uplink resource, configures the second uplink resource for the third terminal device, and configures The uplink resource information is sent to the second terminal device via the third downlink control information, and sent to the third terminal device via the fourth downlink control information.
  • the second terminal device After receiving the third downlink control information, the second terminal device determines the first uplink resource, and the second terminal device decodes and encodes and modulates the first side row data to generate the first uplink data.
  • the third terminal device generates the first uplink data according to the The two-side line data generates second uplink data, and the second uplink resource is determined according to the fourth downlink control information.
  • the transceiver unit 1601 of the second terminal device sends the first uplink data to the first network device, and the transceiver unit 1701 of the third terminal device sends the second uplink data to the first network device.
  • the first terminal device After the first network device receives the first uplink data and the second uplink data, the entire uplink coordinated transmission process is completed.
  • the first terminal device sends TB0 and TB1 to the first network device with the assistance of the second terminal device and the third terminal device, which improves the uplink transmission capability of the first terminal device. Simultaneous transmission of side-line data reduces the delay in the collaboration process and improves the transmission efficiency.
  • FIG. 7 is a schematic diagram of Embodiment 3 of the present application
  • FIG. 11 is a flowchart of the method of Embodiment 3 of the present application.
  • the final data receiving end is a terminal device instead of a network device.
  • the terminal device transmits the data to the first target terminal device to complete the collaboration process.
  • the specific process is shown in Figure 11:
  • the transceiving unit 1801 of the first network device sends third downlink control information to the second terminal device, and the transceiving unit 1801 of the first network device sends fourth downlink control information to the third terminal device.
  • the processing unit 1802 of the first network device determines the third downlink control information according to the first response information, and determines the fourth downlink control information according to the second response information;
  • the third downlink control information is used to indicate the third side row resource
  • the first uplink resource is used to transmit the third side row data
  • the fourth downlink control information is used to indicate the fourth side row resource
  • the second uplink resource is used to transmit the fourth side row resource.
  • the third side line data is determined according to the first side line data
  • the fourth side line data is determined according to the second side line data.
  • the first network device After receiving the ACKs from the second terminal device and the third terminal device, the first network device configures side-line data transmission resources for the second terminal device, that is, the third side-line resource, and configures the fourth side-line resource for the third terminal device , And send the side row resource information to the second terminal device through the third downlink control information, and send it to the third terminal device through the fourth downlink control information.
  • the second terminal device After receiving the third downlink control information, the second terminal device determines the third side row resource. The second terminal device decodes and encodes and modulates the first side row data to generate the third side row data. Similarly, the third terminal device The fourth side row data is generated according to the second side row data, and the fourth side row resource is determined according to the fourth downlink control information.
  • the transceiving unit 1601 of the second terminal device sends the third sideline data to the first target terminal device
  • the transceiving unit 1701 of the third terminal device sends the fourth sideline data to the first target terminal device
  • the The transceiver unit 1901 receives the third side line data from the second terminal device and the fourth side line data from the third terminal device.
  • the first terminal device sends TB0 and TB1 to the first target terminal device with the assistance of the second terminal device and the third terminal device, which improves the sideline transmission capability of the first terminal device, and simultaneously delivers through multiple DCIs Simultaneous transmission of data with multiple side rows reduces the delay in the cooperation process and improves the transmission efficiency.
  • FIG. 8 is a schematic diagram of Embodiment 4 of the present application
  • FIG. 12 is a flowchart of a method of Embodiment 4 of the present application.
  • the transceiver unit 1601 of the second terminal device sends an acknowledgement ACK to the first terminal device.
  • the transceiver unit 1601 of the second terminal device sends a negative response NACK to the first terminal device.
  • the third terminal device sends an ACK to the first terminal device when the sideline data is successfully received, and sends a NACK to the first terminal device when the reception fails.
  • ACK/NACK is 1 bit, for example, when the value is 0, it means the reception is correct, and when the value is 1, it means the reception is wrong.
  • the sending resource of ACK/NACK can be the next Physical Sidelink Feedback Channel (PSFCH) that is closest to the time point of successful or failed reception, or multiple ACK/NACK responses are sent to the first terminal device at the same time.
  • PSFCH Physical Sidelink Feedback Channel
  • Each ACK/NACK message can be code division multiplexed.
  • S506 The transceiver unit of the first terminal device retransmits the first side line data to the second terminal device.
  • a first time threshold may also be specified.
  • the first terminal device automatically retransmits the first side line if it does not receive the ACK message from the second terminal device within the first time threshold. data.
  • the retransmission mechanism increases the probability of successful data transmission during data transmission and improves the reliability of transmission.
  • S507-S509 can refer to S305-S307.
  • FIG. 9 is a schematic diagram of Embodiment 5 of the present application
  • FIG. 13 is a flowchart of the method of Embodiment 5 of the present application.
  • S604 The difference of S304 is that the transceiver unit 1501 of the first terminal device also sends the second side line control information and the second data to the fourth terminal device.
  • the fourth terminal device and the third terminal device are the cooperative user group 2, and the first terminal device transmits the second side row control information and the second side row data to the third and fourth terminal devices in the form of multicast.
  • the second side control information is scrambled by the group ID of the cooperative user group.
  • the third and fourth terminal devices perform blind detection on the PSCCH, and use the group ID to successfully decode the side control information. Therefore, the fourth terminal device and the third terminal device Both receive the second side row data on the time-frequency resource indicated by the second side row control information, and the form of multicast improves the transmission success rate of the second side row data.
  • S605 On the basis of S305, the fourth terminal device sends third response information to the first network device after successfully receiving the second side line data.
  • the first network device delivers fourth downlink control information to the cooperative user group 2.
  • the same DCI4 includes group ID information, which is used to indicate that the second uplink resource indicated by the DCI is used by the cooperative user group.
  • the fourth terminal device On the basis of S607, the fourth terminal device also sends second uplink data to the first network device on the second uplink resource.
  • the fourth terminal device decodes and encodes and modulates the second side line data to generate second uplink data.
  • the success rate of the first network device successfully receiving the second uplink data is improved.
  • FIG. 20 is a schematic block diagram of a communication device 2000 according to an embodiment of the present application.
  • the communication device 2000 may include a processor/circuit 2002 and a memory 2001 coupled to a communication interface/circuit 2003.
  • the user input circuit 2007 and/or the display circuit 2008 may also be included.
  • the communication circuit 2003 may be used for wireless communication to communicate with two or more different wireless networks 2011 or wireless communication devices (for example, a target device, a collaboration device, or other neighboring devices). It should be understood that the communication device 2000 can execute the method of FIG. 2 or each step executed by the terminal device in other embodiments, and in order to avoid repetition, it will not be described in detail here.
  • the memory 2001 is used to store programs, and the memory can also store other data such as transmission data 2004 or channel data.
  • the transmission data 2004 allows the second or third terminal device to decode and then decode and relay the transmission data to the first network device or the first target terminal device.
  • the processor/circuit 2002 may include a transceiver unit/circuit 2005.
  • the transceiver unit/circuit 2005 is used for receiving various downlink control information from the first network device or sideline control information or sideline data or response information from other terminal devices through the communication interface/circuit 2003; the transceiver unit/circuit 2005 is also used for Send scheduling request, buffer status report, response information or uplink data to the first network device through the communication interface/circuit 2003, or send side-line control information or side-line data to other terminal devices.
  • the processor/circuit 2002 may also include a processing unit/circuit 2006.
  • the processing unit/circuit 2006 is used for decoding and re-decoding the received side line data or performing operations such as fetching data from the uplink buffer.
  • the user input circuit 2007 can be interfaced and coupled with an external user input device 2009, and the display circuit 2008 can be interfaced and coupled with an external display output device 2010.
  • the user input circuit 2007 may also provide output control via an interactive display (for example, a touch screen or other external hardware that the user can view).
  • the display circuit 2008 can also be displayed via an interactive display component (for example, a touch screen or other interactive external hardware that the user can use) Provide user input options.
  • the communication device 2000 shown in FIG. 20 may be a chip or a circuit.
  • a chip or circuit can be installed in a terminal device.
  • the aforementioned communication interface/circuit 2003 may also be a transceiver.
  • the transceiver includes a receiver and a transmitter.
  • the communication device 2000 may also include a bus system.
  • the processor/circuit 2002, the memory 2001, the receiver and the transmitter are coupled and connected, and can communicate with each other or can be connected through a bus system.
  • the processor/circuit 2002 can be used to execute the instructions stored in the memory 2001 to control the receiving
  • the device receives the signal and controls the transmitter to send the signal to complete the steps of the network device in the communication method of this application.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the memory 2001 may be integrated in the processor/circuit 2002, or may be provided separately from the processor 2002.
  • the functions of the receiver and transmitter may be implemented by a transceiver circuit or a dedicated transceiver chip.
  • the processor/circuit 2002 may be realized by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • FIG. 21 is a schematic block diagram of a communication device 2100 according to an embodiment of the present application.
  • the communication device 2100 may include a processor/circuit 2102 and a memory 2101 coupled to a communication interface/circuit 2103.
  • the communication circuit 2103 may be used for wireless communication to communicate with two or more different wireless networks 2111 or wireless communication devices (for example, a target device, a collaboration device, or other neighboring devices). It should be understood that the communication device 2100 can execute the method of FIG. 2 or each step executed by the network device in other embodiments, and in order to avoid repetition, the details are not described herein again.
  • the memory 2001 is used to store programs, and the memory can also store other data such as transmission data 2104 or channel data.
  • the transmission data 2004 or the channel data 2004 is used to store the received uplink data or response information from the terminal device.
  • the processor/circuit 2102 may include a transceiver unit/circuit 2105.
  • the transceiver unit/circuit 2105 is used to receive buffer status reports, response information, and uplink data from each terminal device through the communication interface/circuit 2103; the transceiver unit/circuit 2105 is also used to send downlink control to the terminal device through the communication interface/circuit 2103 information.
  • the processor/circuit 2102 may also include a processing unit/circuit 2106.
  • the processing unit/circuit 2106 is configured to determine at least two pieces of downlink control information according to the buffer status report.
  • the communication device 2100 shown in FIG. 21 may be a chip or a circuit.
  • a chip or circuit can be installed in a terminal device.
  • the aforementioned communication interface/circuit 2103 may also be a transceiver.
  • the transceiver includes a receiver and a transmitter.
  • the communication device 2100 may also include a bus system.
  • the processor/circuit 2102, the memory 2101, the receiver and the transmitter are coupled and connected, and can communicate with each other, or can be connected through a bus system.
  • the processor/circuit 2102 can be used to execute the instructions stored in the memory 2101 to control the receiving
  • the device receives the signal and controls the transmitter to send the signal to complete the steps of the network device in the communication method of this application.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the memory 2101 may be integrated in the processor/circuit 2102, or may be provided separately from the processor 2102.
  • the functions of the receiver and transmitter may be implemented by a transceiver circuit or a dedicated transceiver chip.
  • the processor/circuit 2102 may be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • FIG. 22 is a block diagram depicting an example of the communication circuit 2103 (e.g., communication interface/circuit 2003 and 2103) of the device 2000 and the device 2100 of FIG. 20 and FIG. 21, respectively.
  • this communication circuit means both a wireless communication circuit and a network communication circuit, it will be referred to as the communication circuit 2200 or the combined communication circuit 2200 in FIG. 22.
  • at least one transceiver chain can be implemented. In this case, two transceiver chains capable of simultaneous activity are shown and implemented.
  • the first transceiver chain may include a first radio frequency (RF) processor 2202 and a first RF front-end interface 2205.
  • RF radio frequency
  • the second transceiver chain may include a second RF processor 2203 and a second RF front-end interface 2206.
  • the first RF processor 2202 and the second RF processor 2203 may be coupled to the first RF front-end interface 2205 and the second RF front-end interface 2206, respectively.
  • the first RF processor 2202 and the second RF processor 2203 may both be coupled to the modem processor 2204.
  • the modem processor 2204 transmits the first transmission signal 2207 to the first RF processor 2202 and transmits the second transmission signal 2209 to the second RF processor 2203.
  • the modem processor 2204 also receives the first received signal 2208 from the first RF processor 2202 and the second received signal 2210 from the second RF processor 2203.
  • to/from the processor/circuit area 2201 directs the modem processor 2204 to the processors/circuits 2002 and 2102 of the communication device 2000 and the communication device 2100 in FIGS. 20 and 21, respectively.
  • the antennas from the first RF front-end interface 2205 and the second RF front-end interface 2206 are guided to/from the wireless network and wireless communication device 2211.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It 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 they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments 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 above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all 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 to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disks or optical disks and other media that can store program codes.

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Abstract

本申请提供一种数据传输的方法和装置，可应用于用户协作、侧行中继、用户中继、车联网等领域。在第一时隙内接收来自第一网络装置的至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示所述第一终端装置向第二终端装置发送第一侧行信息的第一侧行资源，所述第二下行控制信息用于指示所述第一终端装置向第三终端装置发送第二侧行信息的第二侧行资源；所述第一终端装置在所述第一侧行资源上向所述第二终端装置发送所述第一侧行信息；所述第一终端装置在所述第二侧行资源上向所述第三终端装置发送所述第二侧行信息。该数据传输方法可以降低传输过程的时延，提高传输效率。

Description

一种数据传输的方法、装置和系统 技术领域
本申请涉及通信领域，尤其是涉及一种数据传输的方法、装置和系统。
背景技术
用户协作(User Equipment Cooperation,UE cooperation)是下一代通信系统主要支持的特性之一，其可以显着提高系统的容量以及网络的覆盖范围。在用户协作场景中，当第一终端装置需要将数据发送给第一网络装置时，第一终端装置可以通过侧行链路将数据发送给协作终端装置，例如第二终端装置及第三终端装置，第二终端装置及第三终端装置接收后再将数据发送给第一网络装置，提升了第一终端装置的上行传输能力。
现有技术中，第一网络装置在一个子帧中只能向一个终端装置发送承载在物理下行控制信道(Physical Downlink Control Channel,PDCCH)中的调度信息，第一网络装置需在多个子帧中依次给第二终端装置和第三终端装置发送承载在物理下行控制信道中的调度信息，第一终端装置在接收到调度信息后在侧行链路上依次向第二终端装置和第三终端装置发送数据，导致了数据传输过程时延过长的问题。
发明内容
本申请提供一种用于数据传输的方法、装置和系统，能够降低数据传输的时延。
第一方面，提供了一种数据传输的方法，该方法可以由第一终端装置执行，所述第一终端装置也可以为所述第一终端装置内的模块或芯片，所述第一终端装置也可以为芯片或片上系统，该方法包括：在第一时隙内接收来自第一网络装置的至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序；在所述第一侧行资源上向所述第二终端装置发送所述第一侧行信息；在所述第二侧行资源上向所述第二终端装置发送所述第二侧行信息。
通过本申请实施例，第一终端装置在第一时隙内接收到了来自第一网络装置的若干下行控制信息，这些下行控制信息用于指示第一终端装置与其他终端装置的侧行通信的资源，下行控制信息还用于指示各侧行数据中包含的传输块的先后顺序，以解决在多条侧行链路上同时传输的侧行数据中的数据块的在数据流或者上行数据缓存中先后位置或顺序关系。相比于第一网络装置在不同的时隙中依次向第一终端装置发送的方式，本申请实施例提供的方式使得第一终端装置能够在一个时隙中集中接收不同的下行控制信息，降低了控制信息下发过程的时延，提升了整体协作传输过程的效率。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息与所 述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
通过本申请实施例，当下行控制信息承载在控制资源集合中时，通过控制资源集合(Control resource set，CORESET)的ID与传输块TB的对应关系，确定在各个CORESET中传输的下行控制信息所指示的侧行信息包含的传输块的先后次序，从而确定第一终端装置在第一侧行资源上向第二终端装置发送的第一侧行信息包含的数据块的次序，例如，当第一资源控制集合中承载的是第一下行控制信息(Downlink Control Information,DCI)时，第一侧行信息包含的数据块为TB0，当第二资源控制集合中承载的是DCI1时，第一侧行信息包含的数据块为TB1。同样的，对应规则可以是相反的。通过本实施例中的方法确定了同时发送的侧行信息包含的数据块的相对先后顺序。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在先的数据块。
通过本申请实施例，下行控制信息的加扰信息可以用于确定侧行信息中的数据块的先后顺序，加扰信息与数据块的对应关系可以由天然的大小对应关系决定，还可以通过高层信令配置具体的对应关系，从而完成了下行控制信息、侧行数据包含的数据块、侧行传输目的终端之间的一一对应。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在先的数据块。
通过本申请实施例，下行控制信息中的指示信息可以用于确定侧行信息中的数据块的先后顺序，例如该指示信息可以是混合自动重传请求编号，还可以是其他指示信息。通过这种简单明了的方式指示了下行控制信息、侧行数据包含的数据块、侧行传输目的终端之间的对应关系。
在一种可能的设计中，所述在先的数据块为TB0，所述在后的数据块为TB1。
通过本申请实施例，确定侧行信息中包含的数据块的先后关系，使同时传输的多份侧行信息中包含的数据块关系更清晰。
在一种可能的设计中，所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
通过本申请实施例，第一终端装置向第二终端装置传输侧行信息使用第一侧行资源，第一终端装置向第三终端装置传输侧行信息使用第二侧行资源，第一侧行资源与第二侧行资源可以时分、频分或者空分，由于第一终端装置在一个时隙或在较小的时间单元内能够将两份或多份侧行信息同时发送给第二终端装置及第三终端装置，即在一个时隙内将两个或多个侧行数据同时发送给多个协作终端装置，相比于在不同的时隙或不同时间单元中中依次发送侧行数据给不同的终端装置相比，降低了侧行传输阶段的时延，进一步地降低了协作传输整体过程的时延。
在一种可能的设计中，在所述第一时隙内发送所述第一侧行信息与所述第二侧行信息；或在第二时隙内发送所述第一侧行信息与所述第二侧行信息，所述第二时隙与所述第一时隙为不同的时隙。
通过本申请实施例，第一终端装置可以在一个时隙内完成若干侧行数据的发送，在侧行传输阶段节省了时间，降低了总体协作过程的时延。进一步地，若第一终端装置可以在第一时隙内既完成多份下行控制信息的接收，又可以
根据下行控制信息向多个终端装置发送侧行数据，则可以更进一步地提升传输的效率。
向所述第一网络装置发送缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
通过本申请实施例，第一终端装置向第一网络装置发送缓冲区状态报告用于第一网络装置判断第一终端装置的数据传输需求，并根据缓冲区状态报告确定下行控制信息，第一网络装置根据第一终端装置的实际需求调度资源，实现了资源的动态合理配置。
第二方面，提供了一种数据传输的方法，该方法可以由第一网络装置执行，所述第一网络装置也可以为所述第一网络装置内的模块或芯片，所述第一网络装置也可以为芯片或片上系统，该方法包括：第一网络装置确定至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示第一终端装置向第二终端装置发送第一侧行信息的第一侧行资源，所述第二下行控制信息用于指示所述第一终端装置向第三终端装置发送第二侧行信息的第二侧行资源；所述第一网络装置在第一时隙内向所述第一终端装置发送所述至少两个下行控制信息。
通过本申请实施例，第一终端装置在第一时隙内接收到了来自第一网络装置的若干下行控制信息，这些下行控制信息用于指示第一终端装置与其他终端装置的侧行通信的资源，下行控制信息还用于指示各侧行数据中包含的传输块的先后顺序，以解决 在多条侧行链路上同时传输的侧行数据中的数据块的在数据流或者上行数据缓存中先后位置或顺序关系。相比于第一网络装置在不同的时隙中依次向第一终端装置发送的方式，本申请实施例提供的方式使得第一终端装置能够在一个时隙中集中接收不同的下行控制信息，降低了控制信息下发过程的时延，提升了整体协作传输过程的效率。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
通过本申请实施例，当下行控制信息承载在控制资源集合中时，通过控制资源集合(Control resource set，CORESET)的ID与传输块TB的对应关系，确定在各个CORESET中传输的下行控制信息所指示的侧行信息包含的传输块的先后次序，从而确定第一终端装置在第一侧行资源上向第二终端装置发送的第一侧行信息包含的数据块的次序，例如，当第一资源控制集合中承载的是第一下行控制信息(Downlink Control Information,DCI)时，第一侧行信息包含的数据块为TB0，当第二资源控制集合中承载的是DCI1时，第一侧行信息包含的数据块为TB1。同样的，对应规则可以是相反的。通过本实施例中的方法确定了同时发送的侧行信息包含的数据块的相对先后顺序。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在先的数据块。
通过本申请实施例，下行控制信息的加扰信息可以用于确定侧行信息中的数据块的先后顺序，加扰信息与数据块的对应关系可以由天然的大小对应关系决定，还可以通过高层信令配置具体的对应关系，从而完成了下行控制信息、侧行数据包含的数据块、侧行传输目的终端之间的一一对应。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在先的数据块。
通过本申请实施例，下行控制信息中的指示信息可以用于确定侧行信息中的数据 块的先后顺序，例如该指示信息可以是混合自动重传请求编号，还可以是其他指示信息。通过这种简单明了的方式指示了下行控制信息、侧行数据包含的数据块、侧行传输目的终端之间的对应关系。
在一种可能的设计中，所述在先的数据块为TB0，所述在后的数据块为TB1。
通过本申请实施例，确定侧行信息中包含的数据块的先后关系，使同时传输的多份侧行信息中包含的数据块关系更清晰。
在一种可能的设计中，所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
通过本申请实施例，第一终端装置向第二终端装置传输侧行信息使用第一侧行资源，第一终端装置向第三终端装置传输侧行信息使用第二侧行资源，第一侧行资源与第二侧行资源可以时分、频分或者空分，由于第一终端装置在一个时隙或在较小的时间单元内能够将两份或多份侧行信息同时发送给第二终端装置及第三终端装置，即在一个时隙内将两个或多个侧行数据同时发送给多个协作终端装置，相比于在不同的时隙或不同时间单元中中依次发送侧行数据给不同的终端装置相比，降低了侧行传输阶段的时延，进一步地降低了协作传输整体过程的时延。
在一种可能的设计中，在所述第一时隙内发送所述第一侧行信息与所述第二侧行信息；或在第二时隙内发送所述第一侧行信息与所述第二侧行信息，所述第二时隙与所述第一时隙为不同的时隙。
通过本申请实施例，第一终端装置可以在一个时隙内完成若干侧行数据的发送，在侧行传输阶段节省了时间，降低了总体协作过程的时延。进一步地，若第一终端装置可以在第一时隙内既完成多份下行控制信息的接收，又可以根据下行控制信息向多个终端装置发送侧行数据，则可以更进一步地提升传输的效率。
向所述第一网络装置发送缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
通过本申请实施例，第一终端装置向第一网络装置发送缓冲区状态报告用于第一网络装置判断第一终端装置的数据传输需求，并根据缓冲区状态报告确定下行控制信息，第一网络装置根据第一终端装置的实际需求调度资源，实现了资源的动态合理配置。
在一种可能的设计中，接收来自所述第二终端装置的第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行信息；根据所述第一应答信息确定第三下行控制信息；向所述第二终端装置发送所述第三下行控制信息，所述第三下行控制信息用于指示第一上行资源或第三侧行资源，所述第一上行资源用于传输第一上行数据，所述第三侧行资源用于传输第三侧行数据；接收来自所述第三终端装置的第二应答信息，所述第二应答信息用于指示所述第三终端装置是否成功接收 所述第二侧行信息；根据所述第二应答信息确定第四下行控制信息；向所述第三终端装置发送所述第四下行控制信息，所述第四下行控制信息用于指示第二上行资源或第四侧行资源，所述第二上行资源用于传输第二上行数据，所述第四侧行资源用于传输或第四侧行数据；所述第一上行数据或第三侧行数据为根据所述第一侧行信息中包含的数据块确定的，所述第二上行数据或所述第四侧行数据为根据所述第二侧行信息中包含的数据块确定的。
通过本申请实施例，第一网络装置通过接收第二终端装置、第三终端装置的应答信息确定第二终端装置与第三终端装置正确接收了来自第一终端装置的侧行信息及其中的数据。第一网络装置根据应答信息为第二终端装置及第三终端装置配置上行资源或配置下行资源，用于完成向第一网络装置或第一目标终端装置的传输，从而完成第一网络装置对整体协作过程的资源配置。
在一种可能的设计中，在所述第一上行资源上接收来自所述第二终端装置的第一上行数据；在所述第二上行资源上接收来自所述第三终端装置的第二上行数据。
通过本申请实施例，第二终端装置与第三终端装置将接收到的来自第一终端装置的侧行数据发送给第一终端装置完成协作过程的第二阶段的传输，实现了对第一终端装置的传输协作。
第三方面提供了一种通信装置，有益效果可以参见第一方面的描述，此处不再赘述。所述通信装置可以是第一终端装置，也可以是第一终端装置内的芯片或模块，还可以是芯片或片上系统，该装置包括：收发单元，用于在第一时隙内接收来自第一网络装置的至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序；所述收发单元，还用于在所述第一侧行资源上向所述第二终端装置发送所述第一侧行信息；所述收发单元，还用于在所述第二侧行资源上向所述第二终端装置发送所述第二侧行信息。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含 在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在先的数据块。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在先的数据块。
在一种可能的设计中，所述在先的数据块为TB0，所述在后的数据块为TB1。
在一种可能的设计中，所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
在一种可能的设计中，所述收发单元，还用于在所述第一时隙内发送所述第一侧行信息与所述第二侧行信息；或所述收发单元，还用于在第二时隙内发送所述第一侧行信息与所述第二侧行信息，所述第二时隙与所述第一时隙为不同的时隙。
在一种可能的设计中，所述收发单元，还用于向所述第一网络装置发送缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
第四方面，提供了一种通信装置，有益效果可以参见第二方面的描述，此处不再赘述。所述通信装置可以是第一网络装置，也可以是第一网络装置内的芯片或模块，还可以是芯片或片上系统，该装置包括：处理单元，用于确定至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示第一终端装置在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示所述第一终端装置在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序；收发单元，用于在第一时隙内向所述第一终端装置发送所述至少两个下行控制信息。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一无线临时标识指示所述第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的第二侧行信息包含在先的数据块。
在一种可能的设计中，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序包括：所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在后的数据块；或所述第一指示信息指示第一下行控制信息指示的第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的第二侧行信息包含在先的数据块。
在一种可能的设计中，所述在先的数据块为TB0，所述在后的数据块为TB1。
在一种可能的设计中，所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
在一种可能的设计中，所述第一侧行信息与所述第二侧行信息为在所述第一时隙内发送的；或所述第一侧行信息与所述第二侧行信息为在第二时隙内发送的，所述第二时隙与所述第一时隙为不同的时隙。
在一种可能的设计中，所述收发单元，还用于接收来自第一终端装置的缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
在一种可能的设计中，所述收发单元，还用于接收来自所述第二终端装置的第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行信息；所述处理单元，还用于根据所述第一应答信息确定第三下行控制信息；所述收发单元，还用于向所述第二终端装置发送所述第三下行控制信息，所述第三下行控制信息用于指示第一上行资源或第三侧行资源，所述第一上行资源用于传输第一上行数据，所述第三侧行资源用于传输第三侧行数据；所述收发单元，还用于接收来自所述第三终端装置的第二应答信息，所述第二应答信息用于指示所述第三终端装置是否成功接收所述第二侧行信息；所述处理单元，还用于根据所述第二应答信息确定第四下行控制信息；所述收发单元，还用于向所述第三终端装置发送所述第四下行控制信息，所述第四下行控制信息用于指示第二上行资源或第四侧行资源，所述第二上行资源用 于传输第二上行数据，所述第四侧行资源用于传输或第四侧行数据；所述第一上行数据或第三侧行数据为根据所述第一侧行信息中包含的数据块确定的，所述第二上行数据或所述第四侧行数据为根据所述第二侧行信息中包含的数据块确定的。
在一种可能的设计中，所述收发单元，还用于在所述第一上行资源上接收来自所述第二终端装置的第一上行数据；所述收发单元，还用于在所述第二上行资源上接收来自所述第三终端装置的第二上行数据。
第五方面，提供了一种数据传输的方法，该方法可以由第二终端装置执行，第二终端装置也可以为所述第二终端装置内的模块或芯片，所述第二终端装置也可以为芯片或片上系统，该方法包括：接收来自第一终端装置的第一侧行信息，所述第一侧行信息包括第一侧行控制信息及第一侧行数据，所述第一侧行控制信息用于指示传输第一侧行数据的第一传输资源，所述第一侧行控制信息由第一下行控制信息指示，所述第一下行控制信息属于至少两个下行控制信息，所述第一下行控制信息用于指示传输所述第一侧行控制信息和所述第一侧行数据的第一侧行资源，所述第一侧行资源包括所述第一传输资源；在所述第一传输资源上接收来自所述第一终端装置的第一侧行数据；向第一网络装置发送第一上行数据，所述第一上行数据为根据第一侧行数据确定的，或所述第二终端装置向第一目标终端装置发送第三侧行数据，所述第三侧行数据为根据第一侧行数据确定的。
通过本申请实施例，第二终端装置接收来自第一终端装置的第一侧行信息，包括第一侧行控制信息及第一侧行数据，第一侧行控制细信息又进一步指示了接收侧行数据的时频资源，从而第二终端装置根据控制信息的指示接收侧行数据，并进行转发，完成对第一终端装置的协作。
在一种可能的设计中，向所述第一网络装置发送第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行数据；所述第二终端装置接收来自第一网络装置的第三下行控制信息，所述第三下行控制信息用于指示第一上行资源，所述第一上行资源用于传输所述第一上行数据，所述第三下行控制信息为根据所述第一应答信息确定的；向所述第一网络装置发送第一上行数据包括：在所述第一上行资源上向所述第一网络装置发送所述第一上行数据。
通过本申请实施例，第二终端装置将来自第一终端装置的数据转发给第一网络装置，协助第一终端装置完成上行协作的传输过程，借助第二终端装置的发送能力提升了第一终端装置的传输能力，扩大了第一终端装置数据传送的范围。
在一种可能的设计中，向所述第一网络装置发送第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行数据；接收来自第一网络装置的第三下行控制信息，所述第三下行控制信息用于指示第三侧行资源，所述第三侧行资源用于传输所述第三侧行数据，所述第三下行控制信息为根据所述第一应答信息确定的；向所述第一目标终端装置发送第三侧行数据包括：在第三侧行资源上向所述第一目标终端装置发送所述第三侧行数据。
通过本申请实施例，第二终端装置将来自第一终端装置的数据转发给第一网络装置，协助第一终端装置完成侧行协作的传输过程，扩大了第一终端装置数据传送的范围。
第六方面，提供了一种通信装置，有益效果可以参见第五方面的描述，此处不再赘述。所述通信装置可以是第二终端装置，也可以是第二终端装置内的芯片或模块，还可以是芯片或片上系统，该装置包括：收发单元，用于接收来自第一终端装置的第一侧行控制信息，所述第一侧行控制信息用于指示传输第一侧行数据的第一传输资源，所述第一侧行控制信息由第一下行控制信息指示，所述第一下行控制信息属于至少两个下行控制信息，所述第一下行控制信息用于指示传输所述第一侧行控制信息和所述第一侧行数据的第一侧行资源，所述第一侧行资源包括所述第一传输资源；所述收发单元，还用于在所述第一传输资源上接收来自所述第一终端装置的第一侧行数据；所述收发单元，还用于向第一网络装置发送第一上行数据，所述第一上行数据为根据第一侧行数据确定的，或所述收发单元，还用于向第一目标终端装置发送第三侧行数据，所述第三侧行数据为根据第一侧行数据确定的。
在一种可能的设计中，所述收发单元，还用于向所述第一网络装置发送第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行数据；所述收发单元，还用于接收来自第一网络装置的第三下行控制信息，所述第三下行控制信息用于指示第一上行资源，所述第一上行资源用于传输所述第一上行数据，所述第三下行控制信息为根据所述第一应答信息确定的；所述收发单元，还用于向所述第一网络装置发送第一上行数据包括：所述收发单元，还用于在所述第一上行资源上向所述第一网络装置发送所述第一上行数据。
在一种可能的设计中，所述收发单元，还用于向所述第一网络装置发送第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行数据；所述收发单元，还用于接收来自第一网络装置的第三下行控制信息，所述第三下行控制信息用于指示第三侧行资源，所述第三侧行资源用于传输所述第三侧行数据，所述第三下行控制信息为根据所述第一应答信息确定的；所述收发单元，还用于置向所述第一目标终端装置发送第三侧行数据包括：所述收发单元，还用于在第三侧行资源上向所述第一目标终端装置发送所述第三侧行数据。
第七方面，本申请实施例提供了一种计算机可读存储介质或非易失性存储介质，所述计算机可读存储介质或非易失性存储介质中存储有指令或程序，当指令或程序在计算机上运行时，使得计算机执行上述各方面所述的方法，或当指令或程序在一个或多个处理器上运行时，使得包含所述一个或多个处理器的通信装置执行上述各方面所述的方法。
第八方面，本申请实施例提供了一种计算机程序产品，所述计算机程序产品用于存储计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如上述任意一方面所述的方法。
第九方面，本申请实施例提供了一种芯片或传输指示信息的装置，包括：至少一个处理器，所述至少一个处理器与存储器耦合，所述存储器包括指令，所述至少一个处理器运行所述指令使所述用于传输公共信号的装置执行如上述第一方面或第二方面或第五方面所涉及的方法。
第十方面，提供了一种通信装置，此通信装置包括一个或多个处理器，以及一个或多个存储器或非易失性存储介质，此一个或多个存储器或非易失性存储介质中存储 有指令或程序，当所述一个或多个处理器执行所述指令或程序时，使得所述通信装置或所述一个或多个处理器执行上述各方面以及本申请实施例的方法。
第十一方面，提供了一种终端装置或通信装置，配置为执行上述第一或第三方面所涉及的方法。
第十二方面，提供了一种网络装置或通信装置，配置为执行上述第二方面所涉及的方法。
第十三方面，本申请实施例提供了一种系统，所述系统包括上述第三方面涉及的通信装置及第四方面涉及的通信装置。
附图说明
图1是根据本申请实施例的系统的示意性架构图；
图2是根据本申请实施例的一种数据传输的方法、第一终端装置、第二终端装置、第三终端装置、第一网络装置及系统；
图3是根据本申请实施例的一种时频资源示意图；
图4是根据本申请实施例的一种时频资源示意图；
图5是根据本申请实施例的一种时频资源示意图；
图6是根据本申请实施例2对应的示意性架构图；
图7是根据本申请实施例3对应的示意性架构图；
图8是根据本申请实施例4对应的示意性架构图；
图9是根据本申请实施例5对应的示意性架构图；
图10是根据本申请实施例2的传输方法流程示意图；
图11是根据本申请实施例3的传输方法流程示意图；
图12是根据本申请实施例4的传输方法流程示意图；
图13是根据本申请实施例5的传输方法流程示意图；
图14a～图14c是根据本申请实施例的侧行控制信息及数据信息时频资源示意图；
图15是根据本申请实施例的一种第一终端装置；
图16是根据本申请实施例的一种第二终端装置；
图17是根据本申请实施例的一种第三终端装置；
图18是根据本申请实施例的一种第一网络装置；
图19是根据本申请实施例的一种第一目标终端装置；
图20是根据本申请实施例的一种通信装置；
图21是根据本申请实施例的一种网络通信装置；
图22是根据本申请实施例的一种示例性通信电路框图。
具体实施方式
图1是本申请实施例的可能的应用场景示意图。如图1所示，该应用场景可以包括多个终端装置和网络装置。如图1所示，第一终端装置与第二终端装置及第三终端装置组成用户协作组，在传输的第一阶段，第一终端装置通过侧行链路分别向第二终端装置及第三终端装置发送数据，在传输的第二阶段，第二终端装置及第三终端装置将收到的数据转发给第一网络装置，转发的方式有多种，例如放大转发、解码转发、压缩转发等，第二终端装置及第三终端装置除了向第一网络装置转发数据外，还可能向其他终端装置转发来自第一终端装置的数据，例如转发给第一目标终端装置。第一终端装置可以叫做源终端装置或源用户设备(Source User Equipment，SUE)，第二终端装置和第三终端装置可以叫做协作终端装置或协作用户设备(Cooperation User Equipment，CUE)，第一目标终端装置可以叫做目标用户设备(Target User Equipment，TUE)，图1记载的本申请实施例中仅给出了一个源终端装置、两个协作终端装置以及一个目标终端装置作为例子，实际场景中，可以有多个服务终端装置、多个协作终端装置以及多个目标终端装置。通过两个阶段的传输，第一终端装置在第二终端装置及第三终端装置的协作下将数据发送给第一网络装置或第一目标终端装置，完成各个终端装置之间的协作传输或中继传输过程。本申请实施例不仅适用于UE协作(UE Cooperation)，也可以适用于用户设备中继(UE relay)、侧行中继(Sidelink Relaying)或车联网等其他应用场景。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端装置，本申请所涉及到的第一终端装置、第二终端装置、第三终端装置、第四终端装置及第一目标终端装置可以包括各种具有无线通信功能的设备或者此设备中的单元、部件、模块、装置、芯片或者SOC，所述具有无线通信功能的设备例如可以是车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它设备，移动台(Mobile station，MS)，终端(terminal)或用户设备(User Equipment，UE)等。第一至第四终端装置及第一目标终端装置为车载设备时，可放置或安装在车辆内，车载设备可视为车辆的一部分，也可以视为模块或模组安置于车辆中，车载终端装置也可以称为车载单元(On Board Unit，OBU)。
本申请实施例所涉及的第一至第四终端装置及第一目标终端装置还可以包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端装置可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、 用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，本申请实施例所涉及的第一至第四终端装置及第一目标终端装置还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
终端装置，可以是终端设备，或者也可以是用于实现终端设备的功能的模块，该模块可以设置在终端设备中，或者也可以与终端设备彼此独立设置，该模块例如为芯片、芯片系统或片上系统等。
源终端装置是指具有上行数据传输或侧行数据传输需求的终端装置，源终端装置需要协作终端装置来协助完成传输。源终端装置将需要传输的数据发送给用户组中的其他终端装置，例如协作终端装置，由协作终端装置完成数据的转发。
协作终端装置是指协助其他终端装置进行传输数据的终端装置，协作终端装置接收来自源终端装置的数据，并将该数据转发给源终端装置指定的目标，例如目标终端装置或者基站。
目标终端装置是指用户协作过程中，源终端装置借助协作终端装置将数据或者信息最终传输到那个终端装置，是指源终端装置打算将数据送往的目的地。
2)网络装置，例如包括接入网(access network，AN)设备，例如第一网络装置(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种车到一切(vehicle-to-everything，V2X)技术中的网络设备为路侧单元(road side unit，RSU)。第一网络装置可用于将收到的空中帧与IP分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络装置可以包括长期演进(long term evolution，LTE)系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型第一网络装置(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5 th generation， 5G)新空口(new radio，NR)系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
4)侧行链路(sidelink)，是指终端装置和终端装置之间的链路。上行链路是指终端装置向网络装置发送信息的链路，下行链路是指终端装置接收来自网络装置信息的链路。
5)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一功率控制因子和第二功率控制因子，只是为了区分不同的功率控制因子，而并不一定是表示这两种功率控制因子的内容、优先级或者重要程度等的不同。
下面结合具体例子，以第一终端装置、第二终端装置、第三终端装置、第四终端装置及第一目标终端装置以及第一网络装置为例，更加详细地描述本申请的实施例。
图2是根据本申请实施例的一种数据传输的方法、执行数据传输方法的第一终端装置、第二终端装置、第三终端装置和第一网络装置，以及包括第一终端装置、第二终端装置、第三终端装置和第一网络装置的系统。
如图15所示，第一终端装置包括收发单元1501、处理单元1502。如图16所示，第二终端装置包括收发单元1601、处理单元1602。如图17所示，第三终端装置包括收发单元1701、处理单元1702。如图18所示，第一网络装置包括收发单元1801、处理单元1802。如图19所示，第一目标终端接装置包括收发单元1901、处理单元1902。第四终端装置与第三终端装置结构及功能相同，也包含收发单元及处理单元。
当第一、第二或第三终端装置为终端设备或者用户设备时，当第一网络装置为网络装置或网络设备时，收发单元1501、收发单元1601、收发单元1701、收发单元1801在发送信息时可以为发送单元或发射器，收发单元1501、收发单元1601、收发单元1701、收发单元1801在接收信息时可以为接收单元或接收器，收发单元可以为收发器，此收发器、发射器或接收器可以为射频电路，当第一、第二或第三终端装置包含存储单元时，该存储单元用于存储计算机指令，该处理器与存储器通信连接，处理器执行存储器存储的计算机指令，使第一终端装置、第二终端装置、第三终端装置及第一网络装置执行图2实施例涉及的方法。其中，处理器可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(Application Specific Intergrated Circuit，ASIC)。
当第一、第二或第三终端装置或第一网络设备为芯片时，收发单元1501、收发单元1601、收发单元1701、收发单元1801可以是输入和/或输出接口、管脚或电路等。 该处理单元可执行存储单元存储的计算机执行指令，以使该第一终端装置、第二终端装置、第三终端装置或第一网络装置内的芯片执行图2所涉及的方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述终端内的位于所述芯片外部的存储单元，如只读存储器(Read Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(Random Access Memory，RAM)等。
图2为本申请实施例1的方法流程图，涉及的数据传输的方法的具体步骤如下：
步骤S201，第一网络装置的处理单元1802确定至少两个下行控制信息(Downlink Control Information,DCI)，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息。
可选的，第一侧行信息包括第一侧行控制信息及第一侧行数据，第二侧行信息包括第二侧行控制信息及第二侧行数据。侧行资源至少包括侧行控制信息传输资源及侧行数据传输资源，例如用于传输侧行控制信息的物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)与用于传输侧行数据的物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)，侧行资源用于所述第一终端装置在指定的资源上与协作终端装置例如第二终端装置或所述第三终端装置通信。第一侧行资源用于发送第一侧行信息，即第一侧行资源既包括用于发送第一侧行控制信息的PSCCH资源，也包括用于发送第一侧行数据的PSSCH资源。
可选的，第一网络装置会预先配置一系列侧行通信资源池，用于第一终端装置与第二终端装置之间的侧行传输，例如PSCCH资源池及PSSCH资源池，资源池包括时域资源及频域资源，时域资源的配置可以是周期性的。第一下行控制信息中用于指示所述第一终端装置向第二终端装置发送第一侧行控制信息和第一侧行数据的第一侧行资源是第一网络装置在PSCCH资源池及PSSCH资源池中选定的，例如根据时间或传输业务类型或第一终端装置侧行传输的数据量选择某个PSCCH资源及PSSCH资源，并通过第一下行控制信息通知给第一终端装置。同样的，第一网络装置也会预先配置用于第一终端装置与第三终端装置之间侧行传输所用的PSCCH资源池及PSSCH资源池，当第一终端装置需要向第三终端装置发送侧行控制信息及侧行数据时，第一网络装置从资源池中选定PSCCH资源及PSSCH资源用于第一终端装置与第三终端装置之间通信，并通过第二下行控制信息通知第一终端装置具体的PSCCH及PSSCH资源信息。
在步骤S201之前，可选的，还可以存在步骤S200，本申请其他实施例中，也可以存在步骤S200或步骤S200中的部分步骤，例如本申请实施例2对应的流程图10中，在步骤S301之前，可以存在步骤S200A、S200B。在步骤S200中：
S200A：当第一终端装置有上行数据传输需求时，第一终端装置的收发单元1501向第一网络装置发送调度请求(Scheduling request，SR)，该调度请求用于通知第一网络装置第一终端装置有数据传输需求，需要第一网络装置进一步配置传输资源。该调度请求还用于触发第一网络装置向第一终端装置发送下行控制信息。
S200B：第一网络装置的收发单元1801在收到调度请求后向第一终端装置发送第 五下行控制信息，第五下行控制信息承载上行调度信息，上行调度信息用于指示第一终端装置向第一网络装置发送缓冲区状态报告使用的时频资源，第一终端装置接收到上行调度信息后确定在什么资源上发送缓冲区状态报告。
S200C：第一终端装置的收发单元1501根据上行调度信息向第一网络装置发送缓冲区状态报告(Buffer Status Report，BSR)，第一网络装置的收发单元1801接收来自第一终端装置的缓冲区状态报告。缓冲区状态报告用于指示第一侧行数据的数据量及第二侧行数据的数据量。缓冲区状态报告还可以用于指示第一终端装置需要向第一网络装置发送的总数据量。第一网络装置根据所述以下信息的至少一种确定至少两个下行控制信息：来自第一终端装置的调度请求、来自第一终端装置的缓冲区状态报告、第一终端装置与第二终端装置的信道条件、第一终端装置与第三终端装置的信道条件、第一终端装置与第一网络装置的信道条件、第二终端装置与第一网络装置的信道条件、第三终端装置与所述第一网络装置的信道条件。
例如，第一终端装置有1000比特的数据需要传输给第一网络装置，第一终端装置向第一网络装置发送调度请求，并接收第一网络装置发送的下行控制信息，第一终端装置根据下行控制信息中的上行调度信息向第一网络装置发送缓冲区状态报告BSR，第一网络装置在接收到第一终端装置的缓冲区状态报告后知晓第一终端装置的1000比特的数据上传需求。第一网络装置搜索第一终端装置所在区域附近的空闲终端装置并测量各个空闲终端装置与第一终端装置间的信道条件以及各个空闲终端装置与第一网络装置之间的信道条件，确定第二终端装置与第三终端装置可作为第一终端装置的协作终端装置，第二终端装置或第三终端装置与第一终端装置间信道条件良好，第二终端装置或第三终端装置与第一网络装置间信道条件良好，具备数据传输的基础。第二终端装置以及第三终端装置可以为第一网络装置在已确定的协助组中选择的协助终端装置，即此协助组中已经包含若干终端装置，而第一终端装置在有数据传输需求时，第一网络装置从此若干终端装置中确定哪些终端装置(例如，第二终端装置和第三终端装置)可以协助第一终端装置向第一网络装置传输信息。或者，第二终端装置和第三终端装置也可以与第一终端装置没有在一个协助组中，而在第一终端装置有数据传输需求时，第一网络装置动态地通过例如测量等方式来确定哪些终端装置(例如，第二终端装置和第三终端装置)可以协助第一终端装置向第一网络装置传输信息，此时，第一网络装置将确定第一至第四终端装置与第一目标终端装置属于同一个协助组。协助组也可以叫做协作组。第一网络装置根据缓冲区状态报告、各信道条件、各终端装置能力确定第一侧行数据及第二侧行数据的数据量大小，例如，分别为10比特、20比特，即第二终端装置可以为第一终端装置转发10比特的信息到第一网络装置，第三终端装置可以为第一终端装置转发20比特的信息到第一网络装置。
在本申请实施例中，用于协作其他终端装置与网络装置进行通信的终端设备，例如第一终端装置与第二终端装置，可以称为协作终端装置，也可以称为辅助用户设备、中继终端设备、协作用户设备(cooperation user equipment，CUE)、邻居设备(Neighboring User Equipment,NUE)等。
步骤S202,第一网络装置的收发单元1801在第一时隙内向第一终端装置发送至少两个下行控制信息，第一终端装置的收发单元1501在第一时隙内接收来自第一网络装 置的至少两个下行控制信息，至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序。
可选的，本申请任意实施例中，第一侧行信息包括第一侧行控制信息和/或第一侧行数据，第二侧行信息包括第二侧行控制信息和/或第二侧行数据。可选的，第一侧行信息和第二侧行信息可以为同一侧行信息；第一侧行信息和第二侧行信息也可以为不同的侧行信息；第一侧行信息和第二侧行信息还可以为某一侧行信息的第一部分和第二部分，即第一侧行信息和第二侧行信息组成所述某一侧行信息。
可选的，第一时隙可以是一个时隙(slot)，包含14个符号。第一时隙还可以是其他时间单元，例如，微时隙(mini slot)或子帧或资源配置单元，还可以是若干个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号，第一网络装置在同一个时隙内向第一终端装置发送多个下行控制信息，相比于第一网络装置在多个时隙中依次发送各下行控制信息的方式，降低了控制信息下发的时延，提升了协作传输的效率。可选的，第一网络装置的收发单元1801在同一时刻向第一终端装置发送至少两个下行控制信息，第一终端装置的收发单元1501也在同一时刻接收来自第一网络装置的至少两个下行控制信息。一个无线帧时长为10ms，每个无线帧包含10个子帧，所以每个子帧长度均为1ms。如表1所示，时隙的时长与子载波间隔有关，1个无线帧有10子帧，1个子帧有k时隙，1个时隙有14个符号，其中，每个子帧到底有多少个时隙取决于参数μ，其取值有5个，即0,1,2,3,4。
表1
Figure PCTCN2019126893-appb-000001
以第一下行控制信息为例说明下行控制信息所包含的信息，第一下行控制信息除包含第一侧行资源信息外，第一下行控制信息还可以包含或用于指示以下信息的至少一种：侧行链路传输的目标终端索引ID、第一侧行数据的侧行传输调制和编码方案MCS、所述第一侧行数据的数据量、所述第一侧行数据的新数据指示信息、所述第一侧行数据的HARQ进程号、所述第一侧行数据的侧行传输功率控制信息、所述第一侧行数据的预编码矩阵。同样的，至少两个下行控制信息中的其他下行控制信息也包括上述信息中的至少一种。
其中，侧行链路传输的目标用户索引ID由高层信令或协议预配置，用于第一终端装置确定侧行通信的目标终端索引ID，例如，当下行控制信息中的目标终端索引ID 为3，代表这个下行控制信息是用于配置与第三终端装置通信过程的。
侧行资源至少包括侧行控制信息传输资源及侧行数据传输资源，例如用于传输侧行控制信息的物理侧行控制信道PSCCH资源与用于传输侧行数据的物理侧行共享信道PSSCH资源，侧行资源用于所述第一终端装置在指定的资源上与协作终端装置例如第二终端装置或所述第三终端装置通信。
第一侧行数据的侧行传输调制和编码方案MCS为第一网络装置根据侧行信道条件等因素确定的第一侧行数据的编码调制方式。第一侧行数据的新数据指示信息用于指示第一终端装置给第二终端装置发送的第一侧行数据是新数据，还是重发的。第一侧行数据的侧行传输功率控制信息用于指示第一终端装置在侧行链路上传输数据的功率大小。
至少两个下行控制信息还可以包括对应第四、第五、第六终端装置的其他下行控制信息，这些下行控制信息分别可以包括第一下行控制信息中包含的各类信息的至少一种。
步骤S203，第一终端装置的收发单元1501根据第一下行控制信息在第一侧行资源上向第二终端装置发送第一侧行信息，第一侧行信息包括第一侧行控制信息和第一侧行数据，第二终端装置的收发单元1601接收来自第一终端装置的第一侧行控制信息和第一侧行数据；第一侧行控制信息用于指示传输第一侧行数据的第一传输资源，第一侧行资源包括所述第一传输资源；所述第一终端装置的收发单元1501根据第二下行控制信息在第二侧行资源上向第三终端装置发送第二侧行信息，第二侧行信息包括第二侧行控制信息和第二侧行数据，第三终端装置的收发单元1601接收来自第一终端装置的第二侧行控制信息和第二侧行数据；第二侧行控制信息用于指示传输第二侧行数据的第二传输资源，第二侧行资源包括第二传输资源，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序。
可选的，第一网络装置会预先通过高层信息给第二终端装置配置PSCCH资源池，包括时域资源，频域资源，时域资源可以是周期性的。第一终端装置向第二终端装置发送的第一侧行控制信息使用的资源为上述PSCCH资源池中的一个资源。第二终端装置在接收到预先配置信息后，会在相应的PSCCH资源池上进行盲检，例如，周期性地进行盲检。若检测到PSCCH上传输的信息中包含第二终端装置对应的用户标识ID，则接收该PSCCH资源上的侧行控制信息，确定侧行控制信息中指示的侧行数据的传输资源，并在侧行数据的传输资源上接收侧行数据。
同样的，第一网络装置也会预先通过高层信息给第三终端装置配置PSCCH资源池，包括时域资源，频域资源，时域资源可以是周期性的。第一终端装置向第三终端装置发送的第二侧行控制信息使用的资源为上述PSCCH资源池中的一个资源。第三终端装置在接收到预先配置的信息后，会在相应的PSCCH资源池上上进行盲检，例如，周期性地进行盲检。若检测到PSCCH上传输的信息中包含第三终端装置对应的用户标识ID，则接收该PSCCH资源上的侧行控制信息，确定侧行控制信息中指示的侧行数据的传输资源，并在侧行数据的传输资源上接收侧行数据。
至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和第二侧行信息包含的传输块的顺序。是指下行控制信息还用于确定侧行信息包含的多个数据块从 上行缓存中取出的顺序。上述第一下行控制信息DCI1指示第一侧行数据的发送，第二下行控制信息指示第二侧行数据的发送，第一侧行数据为第一终端装置从上行缓存中取出的TB生成的，第二侧行数据也为根据第一终端装置从上行缓存中取出的TB生成的。由于上行缓存中的数据或者说数据流中的各个部分有先后顺序，并且数据的最终接收端也需要知道收到的多份数据对应的TB之间的先后关系，才能顺利地恢复第一终端装置向数据接收端传达的整体数据。
SUE根据DCI1在第一侧行资源上向CUE1发送第一侧行数据，SUE根据DCI2在第二侧行资源上向CUE1发送第二侧行数据，第一侧行数据与第二侧行数据对应的TB直接有先后顺序，其先后顺序可以通过多种方式进行指示：
方式A1：
多个DCI分别在不同的控制资源集合(Control resource set，CORESET)中传输。例如，当第一网络装置在相同的时隙中向第一终端装置传输两个DCI，DCI1在CORESET1上传输，DCI2在CORESET2上传输。CORESET1和CORESET2由第一网络装置通过RRC等高层信令预先配置，并且在CORESET的配置中包含信令，包含的信令指示第一终端装置：在CORESET中的DCI是用于传输TB0还是TB1，具体的，CORESET配置中包含第一信令，用于指示CORESET上传输的PDCCH中包含的DCI用于指示传输TB0或者TB1，例如，第一信令为1比特，当CORESET配置中的第一信令取值为0时，其上传输的PDCCH包含的DCI用于指示TB0，当CORESET配置中的第一信令取值为1时，其上传输的PDCCH包含的DCI用于指示TB1。第一终端装置在CORESET1上进行盲检，收到DCI1，其包含侧行链路传输目标的CUE1的ID，以及相应的传输参数配置1；第一终端装置在CORESET2上进行盲检，收到DCI2，其包含侧行链路传输的CUE2的ID，以及相应的传输参数配置2。或者，DCI中不包含CUE的ID信息，而是通过高层信令的配置经由CORESET的ID指示CUE的ID。所述传输参数配置包括用于PSSCH传输的时频资源，MCS，HARQ信息，上行功率控制信息，预编码等必要信息，包括用于PSCCH传输的时频资源等。
方式A2：
多个DCI分别在不同的控制资源集合(Control resourceset，CORESET)中传输。通过RRC等高层信令预定义规则为CORESET1的ID和CORESET2的ID中数值较小的对应TB0的传输，而CORESET1的ID和CORESET2的ID中数值较大的对应TB1的传输。第一终端装置从上行缓存中先取出的TB称为TB0，从上行缓存中后取出的TB称为TB1。当CUE的数量为N，且N大于2时，第一网络装置通过RRC等高层信令确定N个CORESET的ID与N个TB之间的一一对应关系，通过每个CORESET的ID唯一的对应到一个TB，SUE在CORESET_j中接收到DCI_i时，DCI_i中包含的侧行CUE的ID为q，根据高层信令的指示，CORESET_j的IDj对应TB_j的传输，因此SUE将上行缓存中的第j个TB(即为TB_j)经处理后在DCI_i指示的第i份侧行资源上发送给用户标识ID为q的UE。
通过CORESET的指示信令或其ID确定多份侧行数据包含的各TB的先后顺序，相比于盲检PDCCH的方式，有效降低了第一终端装置的盲检复杂度，增加了指示方式的灵活性。
方式B1：
在一种情况中，DCI1或DCI2承载在物理下行控制信道(Physical Downlink Control Channel，PDCCH)中。多个PDCCH分别由不同的物理侧行无线网络临时标识(Side Link Radio Network Temporary Identifier,SL-RNTI)加扰，其中SL-RNTI表示PDCCH中包含的控制信息是用来指示侧行链路传输。例如，当第一网络装置在相同的时隙中向第一终端装置传输两个PDCCH，这两个PDCCH分别由SL-RNTI1和SL-RNTI2加扰。SL-RNTI1和SL-RNTI2由第一网络装置通过RRC等高层信令预先配置给终端装置，其中SL-RNTI1指示第一终端装置其接收的DCI1中的控制信息用于指示侧行链路传输并且对应传输块0(Transport Block0，TB0)的传输，SL-RNTI2指示第一终端装置其接收的DCI2中的控制信息用于指示侧行链路传输并且对应TB1的传输，其中，第一终端装置从上行缓存中先取出的TB称为TB0，从上行缓存中后取出的TB称为TB1。当CUE的数量为N，且N大于2时，第一网络装置通过RRC等高层信令确定N个SL-RNTI与N个TB之间的一一对应关系，通过每个SL-RNTI唯一的对应到一个TB，SUE在接收到DCI_i时，DCI_i中包含的侧行CUE的ID为q，DCI_i的加扰信息为SL-RNTI_i，根据高层信令的指示，SL-RNTI_i对应TB_j的传输，因此SUE将上行缓存中的第j个TB(即为TB_j)经处理后在DCI_i指示的第i份侧行资源上发送给用户标识ID为q的UE。
方式B2：
预定义规则为SL-RNTI1和SL-RNTI2中数值较小的对应TB0的传输，而SL-RNTI1和SL-RNTI2中数值较大的对应TB1的传输。或预定义为SL-RNTI1和SL-RNTI2中数值较大的对应TB0的传输，而SL-RNTI1和SL-RNTI2中数值较小的对应TB1的传输。第一终端装置从上行缓存中先取出的TB称为TB0，从上行缓存中后取出的TB称为TB1。当CUE的数量为N，且N大于2时，预定义规则可以是按照各个SL-RNTI的数值进行排序，数值最小的对应TB0的传输，数值第二小的对应TB1的传输，数值最大的对应TBN的传输。此时，第一终端装置从上行缓存中先取出的TB称为TB0，从上行缓存中最后取出的TB称为TBN。
第一终端装置通过SL-RNTI1对PDCCH1进行解扰，PDCCH1所承载的DCI1包含侧行链路传输目标第二终端装置(第二终端装置可以称为CUE1)对应的ID以及相应的传输参数配置。可选的，如果DCI1的传输目标为多个CUE，则所述ID为一组CUE的ID，用于标识这次传输是用于组播。例如，SL-RNTI1对应TB0的传输，通过SL-RNTI1加扰的DCI1中包含CUE1对应的用户标识ID，则代表第一终端装置需要在侧行链路上向CUE1传输TB0。
第一终端装置通过SL-RNTI2对PDCCH2进行解扰，PDCCH2所承载的DCI2包含侧行链路传输的第三终端装置(第三终端装置可以称为CUE2)对应的ID，以及相应的传输参数配置2；例如，SL-RNTI2对应TB1的传输，通过SL-RNTI2加扰的DCI2中包含CUE2对应的用户标识ID，则代表第一终端装置需要在侧行链路上向CUE2传输TB1。
所述传输参数配置包括以下信息中的至少一个信息：用于侧行链路传输的时频资源、侧行传输调制和编码方案MCS、侧行数据的数据量、侧行数据的新数据指示信息、侧行数据的HARQ进程号、侧行数据的侧行传输功率控制信息或侧行数据的预编码矩阵。
示例性的，第一网络装置配置DCI1中的目标ID为2，代表协作UE为第二终端装置；DCI1经由SL-RNTI1加扰，SL-RNTI1表示DCI1中的信息对应侧行传输并且DCI1中的控制信息对应TB0的传输，DCI1中侧行数据量为10比特。
如表2所示，第一终端装置使用SL-RNTI1对DCI1进行成功解码后，确定DCI1适用于指示侧行传输的控制信息，且DCI1适用于指示TB0传输的控制信息，DCI1中包含以下信息：目标终端索引ID为2，指示通信目标为第二终端装置通信，侧行数据的数据量为10比特，指示TB0的大小为10比特，即第一终端装置从上行缓存中取出10比特的数据，该数据为TB0，对该数据进行编码调制后得到第一侧行数据。DCI1中指示的侧行资源为第一侧行资源，用于第一终端装置向第二终端装置发送第一侧行控制信息及第一侧行数据。第一传输资源为第一侧行资源中的一部分，第一传输资源用于传输第一侧行数据。第一终端装置通过SL-RNTI加扰信息确定确定多份侧行数据包含的各TB的先后顺序，该指示方式较为简单明确。
表2
Figure PCTCN2019126893-appb-000002
方式C：
DCI1中包含HARQ进程号1，DCI2中包含HARQ进程号2。记基站可能分配的侧行链路HARQ进程号从小到大分别为{a(0),a(1),…a(N)}，每个编号均为非负整数。则包含较小HARQ进程号的DCI对应TB0的传输，包含较大HARQ进程的DCI对应TB1的传输。第一终端装置通过DCI中包含的HARQ的大小确定确定多份侧行数据包含的各TB的先后顺序，该指示方式实现较为容易，能比较清晰地表达二者的对应关系。
在上述几种情况中，第一终端装置根据DCI1中的配置信息获取TB0的大小，例如，第一终端装置可以根据DCI中携带的侧行数据的数据量字段确定TB0的大小，此外，第一终端装置还可以根据DCI1承载的时频资源、MCS等信息计算出TB0的大小；同理，第一终端装置也可以根据DCI2中的配置信息确定TB1的大小。第一终端装置依次从数据缓存中取出TB0和TB1，分别生成第一侧行数据和第二侧行数据，或分别对应码字0和码字1。
第一终端装置根据DCI1向第二终端装置发送第一侧行控制信息及第一侧行数据，其中第一侧行控制信息承载在PSCCH上发送，第一侧行控制信息用于指示发送第一侧行数据的第一传输资源。第一侧行控制信息通过DCI1中包含的协作终端ID加扰，即通过第二终端装置对应的用户索引的ID加扰，或者第一侧行控制信息中包含DCI1中携带的协作终端ID。第一侧行数据承载在PSSCH上发送，具体承载在第一传输资源上。第二终端装置对PSCCH进行盲检并通过自己的ID对PSCCH上承载的第一侧行数据进行译码，当第二终端装置通过自己的ID对第一终端装置发送的第一侧行控制信息解码成 功后，确定第一侧行控制信息中指示的第一传输资源；或者第二终端装置对PSCCH上承载的第一侧行数据进行成功译码后，侧行链路控制信息包含的协作终端ID为自己的ID，则第二终端装置在第一传输资源上接收第一侧行数据。
同样的，第一终端装置根据DCI2向第三终端装置发送第二侧行控制信息及第二侧行数据，其中第二侧行控制信息承载在PSCCH上发送，第二侧行控制信息用于指示发送第二侧行数据的第二传输资源。第二侧行控制信息通过DCI2中包含的协作终端ID加扰，即通过第三终端装置对应的ID加扰，或者第二侧行控制信息中包含DCI2中携带的协作终端ID。第二侧行数据承载在PSSCH上发送，具体承载在第二传输资源上。第三终端装置对PSCCH进行盲检并通过自己的ID对PSCCH上承载的第二侧行数据进行译码，当第三终端装置通过自己的ID对第一终端装置发送的第二侧行控制信息解码成功后，确定第二侧行控制信息中指示的第二传输资源；或者第三终端装置对PSCCH上承载的第二侧行数据进行成功译码后，侧行链路控制信息包含的协作终端ID为自己的ID，则第三终端装置在第二传输资源上接收第二侧行数据。
可选的，第一侧行资源包括第一传输资源，第一传输资源用于传输第一侧行数据。第二侧行资源包括第二传输资源，第二传输资源用于传输第二侧行数据。第一传输资源与第二传输资源的时域或频域具体关系是多样的，包括但不限于以下几种方式：
方式A：第一传输资源的时域资源与所述第二传输资源的时域资源相同，所述第一传输资源的频域资源与所述第二传输资源的频域资源不重叠。频域资源不重叠指第一侧行资源与第二侧行资源占据完全不同的频域，时域资源相同指第一终端装置在同一时间同时发送第一侧行数据与第二侧行数据，也可指第一侧行数据与第二侧行数据在一个时隙内或若干个符号内发送完毕。由于第一终端装置在一个时隙内将两份或多份侧行数据同时发送给第二终端装置及第三终端装置，即在一个时隙内将两个或多个侧行数据同时发送给多个协作终端装置，相比于在不同的时隙中依次发送给不同的终端装置相比，降低了侧行传输过程的时延，为总体的协作过程节省了时间。
用于传输第一侧行数据的第一传输资源与用于传输第二侧行数据的第二传输资源的时域、频域资源关系如下：
方式A1：第一传输资源的时域资源和第二传输资源的时域资源相同，第一传输资源的频域资源和第二传输资源的频域资源无重叠部分；
方式A2：在另外一种情况中，第一传输资源的时域资源可以和第二传输资源的时域资源部分重叠，第一传输资源的频域资源和第二传输资源的频域资源无重叠部分。
通过这种方法，第一终端装置可以在一个时间单元(例如时隙)中将多个TB传输给不同的CUE，降低第一阶段传输的时延。
示例性的，如图3所示，DCI1与DCI2承载在用于下行传输的时频资源中，且DCI1与DCI2在一个时隙内发送，第一终端装置根据DCI1与DCI2向第二终端装置发送PSCCH1、PSSCH1，向第三终端装置发送PSCCH2与PSSCH2，第一侧行数据承载在PSSCH1中，第二侧行数据承载在PSSCH2中。PSCCH与PSSCH可以承载在用于上行传输的时域资源中发送。第一传输资源的时域资源和第二传输资源的时域资源相同，第一传输资源的频域资源和第二传输资源的频域资源无重叠部分。
同理，PSCCH1和PSCCH2的传输资源的关系也可以与PSSCH1、PSSCH2的传输资源 关系类似，即也可以进行频分复用。或者，第一侧行信息包含第一侧行控制信息和第一侧行数据，第二侧行信息包含第二侧行控制信息和第二侧行数据，第一侧行信息所在的第一侧行资源与第二侧行信息所在的第二侧行资源也可以进行时分复用。
可选的，由于多个DCI配置的时频资源可以进行频分复用，DCI1和DCI2配置的循环前缀(Cyclic Shift)和子载波间隔(Subcarrier Spacing)相同。如果不同，SUE需要独立地依次在基带根据DCI1和DCI2的配置信息生成第一侧行数据和第二侧行数据叠加后同时发送，第一侧行数据通过TB0生成，第二侧行数据通过TB1生成，增加了处理时延。
可选的，上述一个时间单元可以是一个时隙，一个微时隙，或若干符号，或一个资源配置单元，或一个子帧，还可以是其他的时间单位。
可选的，第一终端装置需要进行侧行功率控制，可以根据以下公式确定一个载波上的侧行传输功率：P PSSCH＝min{P CMAX,P 0(j)+α(j)·PL(q)+10·log 10(2 μ·M RB)+Δ TF+δ(l)}。其中，P_CMAX为终端装置在每个载波上允许传输的最大功率，M_RB为PSSCH传输的资源大小。上述公式可以简单解释为，PSSCH传输的基本功率为接收端的目标接收功率(P 0(j)+10·log 10(2 μ·M RB))与侧行路径损耗(α(j)·PL(q))的和，Δ TF+δ(l)}为传输功率的微调部分。对于接收端的目标接收总功率，其中P 0(j)其物理为在接收端每个资源块(Resource Block，RB)的接收功率，该接收功率以15KHz子载波间隔为基准，10·log 10(2 μ·M RB)与终端装置分配的总RB个数和实际子载波间隔有关。对于侧行路径损耗，其中PL()为路径损耗的估计，α()为系统配置的信息，其与路径损耗相关。另外，在多输入多输出技术(Multiple-input Multiple-output，MIMO)层数等于1的情况中，Δ TF不为零，Δ TF与PSSCH传输的MCS相关，由于不同的MCS都有自己的最优目标接收功率，因此需要发送功率也需要根据不同的MCS进行调整。前面所述的参数为开环功控相关的参数，其配置与变化周期较长，而δ()为闭环功控参数，其在每次动态调度过程中都可以进行调整。最后，PSSCH传输的功率不可以超过终端装置允许的最大发送功率P CMAX。
由于多个DCI配置的时频资源,例如第一传输资源、第二传输资源可以频分复用，第一终端装置可以通过PSSCH1的频域资源和PSSCH2的频域资源来联合得到传输功率。记PSSCH1的频域资源包含的RB个数为M 1，其子载波间隔记为μ 1；记PSSCH2的频域资源二包含的RB个数为M 2，其子载波间隔记为μ 2。在一种实现简单的方案中，PSSCH1和PSSCH2的子载波间隔一样，μ＝μ 1＝μ 2。则包含PSSCH1和PSSCH2的侧行链路总的传输功率如下所示：
P PSSCH＝min{P CMAX,P 0(j)+α(j)·PL(q)+10·log 10(2 μ·(M 1+M 2))+Δ TF+δ(l)}
在另一种应用范围更广泛的场景中，PSSCH1和PSSCH2的子载波间隔可以不一样。则包含PSSCH1和PSSCH2的总侧行链路传输功率如下所示：
Figure PCTCN2019126893-appb-000003
方式B：第一传输资源的时域资源与第二传输资源的时域资源不重叠。即第一终端装置在一个时刻只向一个协作终端装置发送侧行数据。在方式B中，具体的频域关系如下：
方式B1：第一传输资源的时域资源与第二传输资源的时域资源不重叠，第一传输 资源的频域资源与所述第二传输资源的频域资源相同；
方式B2：第一传输资源的时域资源与第二传输资源的时域资源不重叠，第一传输资源的频域资源与所述第二传输资源的频域资源不相同；
上述第一传输资源的时域资源与第二传输资源的时域资源可以是同一个时隙中的不同迷你时隙，也可以分别处于不同的时隙。
通过该方法，避免了方式A中的由于频分复用导致的分功率问题，例如，当侧行链路传输的最大功率为23dBm时，PSSCH1和PSSCH2的功率和不大于23dBm。而在本实施例中，PSSCH1和PSSCH2的传输功率最大都可以达到23dBm，提升了第一终端向第二终端传输，以及第二终端向第三终端传输的覆盖。
示例性的，如图4所示，DCI1与DCI2承载在用于下行传输的时频资源中，且DCI1与DCI2在一个时隙内发送，第一终端装置根据DCI1与DCI2向第二终端装置发送PSCCH1、PSSCH1，向第三终端装置发送PSCCH2与PSSCH2。PSCCH与PSSCH可以承载在用于上行传输的时域资源中发送。第一侧行数据承载在PSSCH1中，第二侧行数据承载在PSSCH2中，第一传输资源的时域资源与第二传输资源的时域资源占据一个时隙中的不同迷你时隙，第一传输资源的频域资源与所述第二传输资源的频域资源不相同。在这种情况下第一侧行数据与第二侧行数据在一个时隙内被分别发送给第二终端装置与第三终端装置，与依次在不同的时隙中发送相比，该方式降低了侧行传输的时延。
同理，PSCCH1和PSCCH2的传输资源的关系也可以与PSSCH1、PSSCH2的传输资源关系类似，即也可以进行时分复用。或者，第一侧行信息包含第一侧行控制信息和第一侧行数据，第二侧行信息包含第二侧行控制信息和第二侧行数据，第一侧行信息所在的第一侧行资源与第二侧行信息所在的第二侧行资源也可以进行时分复用。
方式C：第一传输资源的时域资源与第二传输资源的时域资源相同，第一传输资源的频域资源与第二传输资源的频域资源相同，在第一传输资源传输第一侧行数据所用的天线端口与在第二传输资源传输第二侧行数据所用的天线端口不同。即多个侧行数据的传输时频资源可以进行空分复用，例如第一终端装置通过天线端口1(或者多个天线端口)向CUE1传输TB0，例如第一终端装置通过天线端口2(或者多个天线端口)向CUE2传输TB1，此时第一传输资源的时域资源与第二传输资源的时域资源相同，第一传输资源的频域资源与第二传输资源的频域资源相同。第一终端装置在不同的天线端口上平均分配功率。例如，第一终端装置用于PSSCH传输的功率为P，PSSCH1传输使用天线端口1，PSSCH2传输使用天线端口2，则PSSCH1和PSSCH2传输的功率分别为P/2。
示例性的，如图5所示，第一传输资源的时域、频域资源与第二传输资源的时域、频域资源均相同，侧行数据传输的天线端口不同。同理，PSCCH1和PSCCH2也可以进行空分复用。或者，第一侧行信息包含第一侧行控制信息和第一侧行数据，第二侧行信息包含第二侧行控制信息和第二侧行数据，第一侧行信息所在的第一侧行资源与第二侧行信息所在的第二侧行资源也可以进行时分复用。
相对于方式A与方式B，通过这种方法，可以提升PSSCH传输的频谱效率，从而使第一网络装置可以将更多的频谱资源分配给其他终端装置传输。
可选的，第一终端装置发送侧行控制信息的时频资源与发送侧行数据的时频资源 关系不仅限于图3、图4、图5所示，PSCCH与PSSCH的时频资源关系是多样的。
方式1：如图14a所示，第一终端装置通过PSCCH向第二终端装置发送第一侧行控制信息，通过PSSCH向第二终端装置发送第一侧行数据。其中PSCCH与PSSCH占据的频域资源相同，时域资源不同；
方式2：如图14b所示，第一终端装置通过PSCCH向第二终端装置发送第一侧行控制信息，通过PSSCH向第二终端装置发送第一侧行数据。其中PSCCH与PSSCH占据的频域资源不重叠，时域资源部分重叠；
方式3：如图14c所示，第一终端装置通过PSCCH向第二终端装置发送第一侧行控制信息，通过PSSCH向第二终端装置发送第一侧行数据。其中PSCCH与PSSCH占据的频域资源不重叠，时域资源部分也不重叠。
可选的，第一网络装置发送第一下行控制信息、第二下行控制信息与第一终端装置发送第一侧行数据、第二侧行数据在一个时隙内完成，或者，第一网络装置在第一时隙内发送第一下行控制信息、第二下行控制信息，第一终端装置在第二时隙内发送第一侧行数据与第二侧行数据，第二时隙与第一时隙为不同的时隙。第一网络装置发送至少两个下行控制信息与第一终端装置发送至少两个侧行信息在一个时隙内完成，或者，第一网络装置在第一时隙内发送至少两个下行控制信息，第一终端装置在第二时隙内发送至少两个侧行信息，第二时隙与第一时隙为不同的时隙。其中第一时隙、第二时隙还可以是其他时间单元，例如一个子帧或一个资源配置单元或一个调度单元。
图6是本申请实施例2的示意图，图10是本申请实施例2的方法流程图。
如图6所示，第一终端装置的上行数据传输分为两阶段，在第一阶段中，第一终端装置向第二终端装置及第三终端装置分别发送第一侧行数据与第二侧行数据；在第二阶段，第二终端装置向第一网络装置发送第一上行数据，第三终端装置向第一网络装置发送第二上行数据。具体流程如图10所示：
可选的，在步骤S301之前，还可以存在步骤S300，在步骤S300中：
S300A：当第一终端装置有上行数据传输需求时，第一终端装置的收发单元1501向第一网络装置发送调度请求。具体参考S200A。
S300B：第一网络装置的收发单元1801在收到调度请求后向第一终端装置发送下行控制信息，具体参考S200B。
S301:第一终端装置的收发单元1501向第一网络装置发送缓冲区状态报告，第一网络装置的收发单元接收来自第一终端装置的缓冲区状态报告。
S301具体可参考S200C。
S302：第一网络装置的确定单元1802确定至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息。
S302具体可参考S201。
S303：第一网络装置的收发单元1801向第一终端装置发送第一下行控制信息及第二下行控制信息，第一终端装置的收发单元1501接收来自第一网络装置的第一下行控制信息及第二下行控制信息。
S303具体可参考S202。
S304：第一终端装置的收发单元1501根据第一下行控制信息向第二终端装置发送第一侧行信息包括第一侧行控制信息和所述第一侧行数据，第二终端装置的收发单元1601接收来自第一终端装置的第一侧行信息包括第一侧行控制信息和第一侧行数据；第一终端装置的收发单元1501根据第二下行控制信息向第三终端装置发送第二侧行信息包括第二侧行控制信息和所述第二侧行数据，第三终端装置的收发单元1601接收来自第一终端装置的第二侧行控制信息和第二侧行数据。
S304具体可参考S203。
S305：第二终端装置的收发单元1601向第一网络装置发送第一应答信息，第一网络装置的收发单元1801接收来自第二终端装置的第一应答信息，第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行数据；第三终端装置的收发单元1701向第一网络装置发送第二应答信息，第一网络装置的收发单元1801接收来自第三终端装置的第二应答信息，第二应答信息用于指示所述第三终端装置是否成功接收所述第二侧行数据。
可选的，第二终端装置在成功接收来自第一终端装置的第一侧行数据并成功进行译码后生成第一应答消息为ACK并向第一网络装置发送，用于告知第一终端装置成功接收第一侧行数据，同理，第三终端装置在成功接收并译码第二侧行数据后也向第一网络装置发送ACK。
S306：所述第一网络装置的收发单元1801向第二终端装置发送第三下行控制信息，第一网络装置的收发单元1801向第三终端装置发送第四下行控制信息。
可选的，第一网络装置的处理单元1802根据第一应答信息确定第三下行控制信息，根据第二应答信息确定第四下行控制信息；
第三下行控制信息用于指示第一上行资源，第一上行资源用于传输第一上行数据，第四下行控制信息用于指示第二上行资源，第二上行资源用于传输第二上行数据，
第一上行数据为根据所述第一侧行数据确定的，第二上行数据为根据所述第二侧行数据确定的。
第一网络装置在接收到第二终端装置及第三终端装置的ACK后为第二终端装置配置上行数据传输资源，即为第一上行资源，为第三终端装置配置第二上行资源，并将上行资源信息通过第三下行控制信息发送给第二终端装置，通过第四下行控制信息发送给第三终端装置。第二终端装置接收到第三下行控制信息后确定第一上行资源，第二终端装置对第一侧行数据进行译码再编码调制后生成第一上行数据，同样的，第三终端装置根据第二侧行数据生成第二上行数据，并根据第四下行控制信息确定第二上行资源。
S307：第二终端装置的收发单元1601向第一网络装置发送第一上行数据，第三终端装置的收发单元1701向第一网络装置发送第二上行数据。
第一网络装置接收到第一上行数据及第二上行数据后，整个上行协作传输过程完成。第一终端装置在第二终端装置及第三终端装置的协助下将TB0与TB1发送给第一网络装置，提升了第一终端装置的上行传输能力，同时通过多个DCI的同时下发与多个侧行数据的同时传输降低了协作过程中的时延，提升了传输的效率。
图7是本申请实施例3的示意图，图11是本申请实施例3的方法流程图。
图7实施例与图6实施例的区别在于最终的数据接收端为终端装置而非网络装置，图7展示了侧行协作传输的场景，在该场景中，通过空闲终端装置的转发，第一终端装置将数据传输给第一目标终端装置，完成了协作过程，具体流程如图11：
S401-S405与S301-S305过程相同，不再赘述。
S406：所述第一网络装置的收发单元1801向第二终端装置发送第三下行控制信息，第一网络装置的收发单元1801向第三终端装置发送第四下行控制信息。
可选的，第一网络装置的处理单元1802根据第一应答信息确定第三下行控制信息，根据第二应答信息确定第四下行控制信息；
第三下行控制信息用于指示第三侧行资源，第一上行资源用于传输第三侧行数据，第四下行控制信息用于指示第四侧行资源，第二上行资源用于传输第四侧行数据，
第三侧行数据为根据所述第一侧行数据确定的，第四侧行数据为根据所述第二侧行数据确定的。
第一网络装置在接收到第二终端装置及第三终端装置的ACK后为第二终端装置配置侧行数据传输资源，即为第三侧行资源，为第三终端装置配置第四侧行资源，并将侧行资源信息通过第三下行控制信息发送给第二终端装置，通过第四下行控制信息发送给第三终端装置。第二终端装置接收到第三下行控制信息后确定第三侧行资源，第二终端装置对第一侧行数据进行译码再编码调制后生成第三侧行数据，同样的，第三终端装置根据第二侧行数据生成第四侧行数据，并根据第四下行控制信息确定第四侧行资源。
S407：第二终端装置的收发单元1601向第一目标终端装置发送第三侧行数据，第三终端装置的收发单元1701向第一目标终端装置发送第四侧行数据，第一目标终端装置的收发单元1901接收来自第二终端装置的第三侧行数据及来自第三终端装置的第四侧行数据。
第一终端装置在第二终端装置及第三终端装置的协助下将TB0与TB1发送给第一目标终端装置，提升了第一终端装置的侧行传输能力，同时通过多个DCI的同时下发与多个侧行数据的同时传输降低了协作过程中的时延，提升了传输的效率。
图8是本申请实施例4的示意图，图12是本申请实施例4的方法流程图。
S501-S504与S301-S304过程相同，不再赘述。
S505：当第二终端装置接收第一侧行数据成功时第二终端装置的收发单元1601向第一终端装置发送肯定应答ACK。当第二终端装置接收第一侧行数据成功后失败时，第二终端装置的收发单元1601向第一终端装置发送否定应答NACK。同样的，第三终端装置在侧行数据接收成功时向第一终端装置发送ACK，在接收失败时向第一终端装置发送NACK。ACK/NACK为1比特，例如，当取值为0时，代表接收正确，当取值为1时，代表接收错误。ACK/NACK的发送资源可以是距离接收成功或失败时间点最近的下一个物理侧行反馈信道(Physical Sidelink Feedback Channel，PSFCH)，或者多个ACK/NACK应答同时向第一终端装置发送，则多个ACK/NACK消息可以采用码分复用的方式。
S506：第一终端装置的收发单元向第二终端装置重发第一侧行数据。
可选的，除了接收到NACK消息进行重发，还可以规定一个第一时间阈值，第一终端装置在第一时间阈值内未收到第二终端装置的ACK消息就自动重发第一侧行数据。重发机制提升了数据传输过程中成功传输数据的概率，提高了传输的可靠性。
S507-S509可参考S305-S307。
图9是本申请实施例5的示意图，图13是本申请实施例5的方法流程图。
S601-S603与S301-S303过程相同。
S604：S304的区别在于，第一终端装置的收发单元1501还向第四终端装置发送第二侧行控制信息及第二数据。
具体的，第四终端装置与第三终端装置为协作用户组2，第一终端装置通过组播的形式向第三及第四终端装置发送第二侧行控制信息及第二侧行数据。第二侧行控制信息通过协作用户组的组ID加扰，第三及第四终端装置在PSCCH上盲检，用组ID成功解码该侧行控制信息，因此第四终端装置与第三终端装置均在第二侧行控制信息指示的时频资源上接收第二侧行数据，组播的形式使得第二侧行数据的传输成功率提升。
S605：在S305的基础上，第四终端装置在成功接收第二侧行数据后向第一网络装置发送第三应答信息。
S606：第一网络装置向协作用户组2下发第四下行控制信息。
同样的DCI4中中包括组ID信息，用于指示该DCI指示的第二上行资源用于协作用户组共同使用。
S607：在S607的基础上，第四终端装置也在第二上行资源上向第一网络装置发送第二上行数据。
第四终端装置根据第二侧行数据解码又编码调制后生成第二上行数据。提升了第一网络装置成功接收第二上行数据的成功率。
图20是本申请实施例的通信装置2000的示意性框图。通信装置2000可以包括耦合到通信接口/电路2003的处理器/电路2002、存储器2001。还可以包括用户输入电路2007和/或显示电路2008。通信电路2003可以用于与两个或更多不同的无线网络2011或者无线通信装置通信(例如，目标设备、协作设备或其它相邻设备)的无线通信。应理解，所述通信装置2000能够执行图2的方法或其他实施例中由终端装置执行的各个步骤，为了避免重复，此处不再详述。
存储器2001，用于存储程序，存储器还可以存储传输数据2004或者信道数据等其他数据。当通信装置2000为第二或第三终端装置时，传输数据2004允许第二或第三终端装置进行解码再译码并将传输数据中继给第一网络装置或者第一目标终端装置。
处理器/电路2002可以包括收发单元/电路2005。收发单元/电路2005用于通过通信接口/电路2003接收来自第一网络装置的各个下行控制信息或者来自其他终端装置的侧行控制信息或者侧行数据或应答信息；收发单元/电路2005还用于通过通信接口/电路2003向第一网络装置发送调度请求、缓冲区状态报告、应答信息或上行数据，或向其他终端装置发送侧行控制信息或者侧行数据。
处理器/电路2002还可以包括处理单元/电路2006。处理单元/电路2006用于对接收到的侧行数据进行解码再译码等处理或从上行缓存中进行取数据等操作。
用户输入电路2007可以与外部用户输入设备2009进行接口和耦合，显示电路2008可以与外部显示输出设备2010进行接口和耦合。除了从用户输入设备2009获得输入之外，用户输入电路2007还可以经由交互式显示器(例如，触摸屏或者用户可以观看的其它外部硬件)来提供输出控制。同样，除了在图形用户界面(GUI)或者其它用户界面(UI)中显示视觉输出之外，显示电路2008还可以经由交互式显示部件(例如，触摸屏或者用户可以使用的其它交互式外部硬件)来提供用户输入选项。
应理解，图20所示的通信装置2000可以是芯片或电路。例如可设置在终端设备内的芯片或电路。上述通信接口/电路2003也可以是收发器。收发器包括接收器和发送器。进一步地，该通信装置2000还可以包括总线系统。
其中，处理器/电路2002、存储器2001、接收器和发送器耦合连接，可以互相进行通信，也可以通过总线系统相连，处理器/电路2002可以用于执行该存储器2001存储的指令，以控制接收器接收信号，并控制发送器发送信号，完成本申请通信方法中网络设备的步骤。其中，接收器和发送器可以为相同或不同的物理实体。为相同的物理实体时，可以统称为收发器。所述存储器2001可以集成在所述处理器/电路2002中，也可以与所述处理器2002分开设置。
作为一种实现方式，接收器和发送器的功能可以考虑通过收发电路或者收发专用芯片实现。处理器/电路2002可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
图21是本申请实施例的通信装置2100的示意性框图。通信装置2100可以包括耦合到通信接口/电路2103的处理器/电路2102、存储器2101。通信电路2103可以用于与两个或更多不同的无线网络2111或者无线通信装置通信(例如，目标设备、协作设备或其它相邻设备)的无线通信。应理解，所述通信装置2100能够执行图2的方法或其他实施例中由网络装置执行的各个步骤，为了避免重复，此处不再详述。
存储器2001，用于存储程序，存储器还可以存储传输数据2104或者信道数据等其他数据。传输数据2004或信道数据2004用于储存接收的来自终端装置的上行数据或应答信息。
处理器/电路2102可以包括收发单元/电路2105。收发单元/电路2105用于通过通信接口/电路2103接收来自各个终端装置的缓冲区状态报告、应答信息、上行数据；收发单元/电路2105还用于通过通信接口/电路2103向终端装置发送下行控制信息。
处理器/电路2102还可以包括处理单元/电路2106。处理单元/电路2106用于根据缓冲区状态报告确定至少两个下行控制信息。
应理解，图21所示的通信装置2100可以是芯片或电路。例如可设置在终端设备内的芯片或电路。上述通信接口/电路2103也可以是收发器。收发器包括接收器和发送器。进一步地，该通信装置2100还可以包括总线系统。
其中，处理器/电路2102、存储器2101、接收器和发送器耦合连接，可以互相进行通信，也可以通过总线系统相连，处理器/电路2102可以用于执行该存储器2101 存储的指令，以控制接收器接收信号，并控制发送器发送信号，完成本申请通信方法中网络设备的步骤。其中，接收器和发送器可以为相同或不同的物理实体。为相同的物理实体时，可以统称为收发器。所述存储器2101可以集成在所述处理器/电路2102中，也可以与所述处理器2102分开设置。
作为一种实现方式，接收器和发送器的功能可以考虑通过收发电路或者收发专用芯片实现。处理器/电路2102可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
图22是分别描绘图20和图21的装置2000和装置2100的通信电路2103(例如，通信接口/电路2003和2103)的示例的框图。为了简单起见，即使该通信电路表示无线通信电路和网络通信电路两者，但其将称为图22中的通信电路2200或者组合的通信电路2200。在图22的示例中，可以实现至少一个收发机链。在该情况下，示出和实现能够同时活动的两个收发机链。第一收发机链可以包括第一射频(RF)处理器2202和第一RF前端接口2205。第二收发机链可以包括第二RF处理器2203和第二RF前端接口2206。此外，第一RF处理器2202和第二RF处理器2203可以分别耦合到第一RF前端接口2205和第二RF前端接口2206。第一RF处理器2202和第二RF处理器2203可以均耦合到调制解调器处理器2204。调制解调器处理器2204向第一RF处理器2202发送第一发射信号2207，并且向第二RF处理器2203发送第二发射信号2209。此外，调制解调器处理器2204还从第一RF处理器2202接收第一接收信号2208，并且从第二RF处理器2203接收第二接收信号2210。例如，去往/来自处理器/电路区域2201将调制解调器处理器2204分别引导到图20和图21中的通信装置2000和通信装置2100的处理器/电路2002和2102。来自第一RF前端接口2205和第二RF前端接口2206的天线引导去往/来自无线网络、无线通信装置2211。
本申请提供的不同实施例之间可以结合。在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁盘或者光盘等各种可以存储程序代码的介质。

Claims (43)

  1. 一种数据传输的方法，其特征在于，包括：
    在第一时隙内接收来自第一网络装置的至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序；
    在所述第一侧行资源上向所述第二终端装置发送所述第一侧行信息；
    在所述第二侧行资源上向所述第二终端装置发送所述第二侧行信息。
  2. 根据权利要求1所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
  3. 根据权利要求1所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  4. 根据权利要求1所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在后的数 据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  5. 根据权利要求1-4任意一项所述的方法，其特征在于，
    所述在先的数据块为TB0，所述在后的数据块为TB1。
  6. 根据权利要求1所述的方法，其特征在于，
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
  7. 根据权利要求1-4任意一项所述的方法，其特征在于，
    在所述第一时隙内发送所述第一侧行信息与所述第二侧行信息；或
    在第二时隙内发送所述第一侧行信息与所述第二侧行信息，所述第二时隙与所述第一时隙为不同的时隙。
  8. 根据权利要求1-4所述的方法，其特征在于，
    向所述第一网络装置发送缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
  9. 一种数据传输的方法，其特征在于，包括：
    确定至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示第一终端装置在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示所述第一终端装置在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序；
    在第一时隙内向所述第一终端装置发送所述至少两个下行控制信息。
  10. 根据权利要求9所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
  11. 根据权利要求9所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第 二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  12. 根据权利要求9所述的方法，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  13. 根据权利要求9-12任意一项所述的方法，其特征在于，
    所述在先的数据块为TB0，所述在后的数据块为TB1。
  14. 根据权利要求9所述的方法，其特征在于，
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
  15. 根据权利要求9-12任意一项所述的方法，其特征在于，
    所述第一侧行信息与所述第二侧行信息为在所述第一时隙内发送的；或
    所述第一侧行信息与所述第二侧行信息为在第二时隙内发送的，所述第二时隙与所述第一时隙为不同的时隙。
  16. 根据权利要求9-12所述的方法，其特征在于，
    接收来自第一终端装置的缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
  17. 根据权利要求9所述的方法，其特征在于，
    接收来自所述第二终端装置的第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行信息；
    根据所述第一应答信息确定第三下行控制信息；
    向所述第二终端装置发送所述第三下行控制信息，所述第三下行控制信息用于指示第一上行资源或第三侧行资源，所述第一上行资源用于传输第一上行数据，所述第三侧行资源用于传输第三侧行数据；
    接收来自所述第三终端装置的第二应答信息，所述第二应答信息用于指示所述第三终端装置是否成功接收所述第二侧行信息；
    根据所述第二应答信息确定第四下行控制信息；
    向所述第三终端装置发送所述第四下行控制信息，所述第四下行控制信息用于指示第二上行资源或第四侧行资源，所述第二上行资源用于传输第二上行数据，所述第四侧行资源用于传输或第四侧行数据；
    所述第一上行数据或第三侧行数据为根据所述第一侧行信息中包含的数据块确定的，所述第二上行数据或所述第四侧行数据为根据所述第二侧行信息中包含的数据块确定的。
  18. 根据权利要求9或17所述的方法，其特征在于，
    在所述第一上行资源上接收来自所述第二终端装置的第一上行数据；
    在所述第二上行资源上接收来自所述第三终端装置的第二上行数据。
  19. 一种通信装置，其特征在于，包括：
    收发单元，用于在第一时隙内接收来自第一网络装置的至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序；
    所述收发单元，还用于在所述第一侧行资源上向所述第二终端装置发送所述第一侧行信息；
    所述收发单元，还用于在所述第二侧行资源上向所述第二终端装置发送所述第二侧行信息。
  20. 如权利要求19所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
  21. 如权利要求19所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  22. 如权利要求19所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  23. 如权利要求19-22任意一项所述的装置，其特征在于，
    所述在先的数据块为TB0，所述在后的数据块为TB1。
  24. 如权利要求19所述的装置，其特征在于，
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
  25. 如权利要求19-22任意一项所述的装置，其特征在于，
    所述收发单元，还用于在所述第一时隙内发送所述第一侧行信息与所述第二侧行信息；或
    所述收发单元，还用于在第二时隙内发送所述第一侧行信息与所述第二侧行信息，所述第二时隙与所述第一时隙为不同的时隙。
  26. 如权利要求19-22任意一项所述的装置，其特征在于，
    所述收发单元，还用于向所述第一网络装置发送缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报 告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
  27. 一种通信装置，其特征在于，
    处理单元，用于确定至少两个下行控制信息，所述至少两个下行控制信息包括第一下行控制信息及第二下行控制信息，所述第一下行控制信息用于指示第一终端装置在第一侧行资源上向第二终端装置发送第一侧行信息，所述第二下行控制信息用于指示所述第一终端装置在第二侧行资源上向第三终端装置发送第二侧行信息，所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序；
    收发单元，用于在第一时隙内向所述第一终端装置发送所述至少两个下行控制信息。
  28. 如权利要求27所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息与所述第二下行控制信息承载在第一控制资源集合CORESET与第二控制资源集合CORESET中；
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在先的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在后的数据块；或
    承载在所述第一控制资源集合中的控制信息指示的侧行信息包含在后的数据块，承载在所述第二控制资源集合中的控制信息指示的侧行信息包含在先的数据块。
  29. 如权利要求27所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息通过第一无线临时标识加扰，所述第二下行控制信息通过第二无线临时标识加扰；
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一无线临时标识指示所述第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二无线临时标识指示所述第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  30. 如权利要求27所述的装置，其特征在于，
    所述至少两个下行控制信息还用于确定所述第一侧行信息包含的传输块和所述第二侧行信息包含的传输块的顺序包括：
    所述第一下行控制信息包含第一指示信息，所述第二下行控制信息包含第二指示信息；
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在先的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在后的数据块；或
    所述第一指示信息指示第一下行控制信息指示的所述第一侧行信息包含在后的数据块，所述第二指示信息指示第二下行控制信息指示的所述第二侧行信息包含在先的数据块。
  31. 如权利要求27-30任意一项所述的装置，其特征在于，
    所述在先的数据块为TB0，所述在后的数据块为TB1。
  32. 如权利要求27所述的装置，其特征在于，
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源不重叠；或
    所述第一侧行资源的时域资源与所述第二侧行资源的时域资源相同，所述第一侧行资源的频域资源与所述第二侧行资源的频域资源相同，在所述第一侧行资源传输所述第一侧行信息所用的天线端口与在所述第二侧行资源传输所述第二侧行信息所用的天线端口不同。
  33. 如权利要求27-30任意一项所述的装置，其特征在于，
    所述第一侧行信息与所述第二侧行信息为在所述第一时隙内发送的；或
    所述第一侧行信息与所述第二侧行信息为在第二时隙内发送的，所述第二时隙与所述第一时隙为不同的时隙。
  34. 如权利要求27-30任意一项所述的装置，其特征在于，
    所述收发单元，还用于接收来自第一终端装置的缓冲区状态报告，所述缓冲区状态报告用于确定所述第一下行控制信息和所述第二下行控制信息，所述缓冲区状态报告用于指示所述第一侧行信息包含的传输块的数据量和所述第二侧行信息包含的传输块的数据量。
  35. 如权利要求27所述的装置，其特征在于，
    所述收发单元，还用于接收来自所述第二终端装置的第一应答信息，所述第一应答信息用于指示所述第二终端装置是否成功接收所述第一侧行信息；
    所述处理单元，还用于根据所述第一应答信息确定第三下行控制信息；
    所述收发单元，还用于向所述第二终端装置发送所述第三下行控制信息，所述第三下行控制信息用于指示第一上行资源或第三侧行资源，所述第一上行资源用于传输第一上行数据，所述第三侧行资源用于传输第三侧行数据；
    所述收发单元，还用于接收来自所述第三终端装置的第二应答信息，所述第二应答信息用于指示所述第三终端装置是否成功接收所述第二侧行信息；
    所述处理单元，还用于根据所述第二应答信息确定第四下行控制信息；
    所述收发单元，还用于向所述第三终端装置发送所述第四下行控制信息，所述第四下行控制信息用于指示第二上行资源或第四侧行资源，所述第二上行资源用于传输第二上行数据，所述第四侧行资源用于传输或第四侧行数据；
    所述第一上行数据或第三侧行数据为根据所述第一侧行信息中包含的数据块确定的，所述第二上行数据或所述第四侧行数据为根据所述第二侧行信息中包含的数据块确定的。
  36. 如权利要求27或35所述的装置，其特征在于，
    所述收发单元，还用于在所述第一上行资源上接收来自所述第二终端装置的第一上行数据；
    所述收发单元，还用于在所述第二上行资源上接收来自所述第三终端装置的第二上行数据。
  37. 一种通信装置，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1至8中任一项所述的方法。
  38. 一种通信装置，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求9至18中任一项所述的方法。
  39. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求1至8中任一项所述的方法。
  40. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求9至18中任一项所述的方法。
  41. 一种芯片，其特征在于，包括处理器和接口；
    所述处理器用于读取指令以执行权利要求1至8中任一项所述的数据传输的方法。
  42. 一种芯片，其特征在于，包括处理器和接口；
    所述处理器用于读取指令以执行权利要求9至18中任一项所述的数据传输的方法。
  43. 一种通信系统，包括权利要求19-26任意一项所述的通信装置、权利要求27-36任意一项所述的通信装置。
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