WO2020135285A1 - 确定通信资源的方法和装置 - Google Patents

确定通信资源的方法和装置 Download PDF

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Publication number
WO2020135285A1
WO2020135285A1 PCT/CN2019/127250 CN2019127250W WO2020135285A1 WO 2020135285 A1 WO2020135285 A1 WO 2020135285A1 CN 2019127250 W CN2019127250 W CN 2019127250W WO 2020135285 A1 WO2020135285 A1 WO 2020135285A1
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frequency domain
domain resource
channel
resource
boundary
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English (en)
French (fr)
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黎超
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP19903709.4A priority Critical patent/EP3893571B1/en
Publication of WO2020135285A1 publication Critical patent/WO2020135285A1/zh
Priority to US17/360,861 priority patent/US20210329601A1/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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • 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 signalling, 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • This application relates to the field of communications, and in particular to a method and device for determining communication resources.
  • V2V Device-to-device
  • V2P vehicle-to-pedestrian
  • V2I/ N vehicle-to-infrastructure/network
  • V2X vehicle to everything
  • SL side link
  • V2X The V2X technology currently under study by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) requires support for data to achieve low-latency transmission.
  • V2X needs to achieve the end-to-end transmission delay of no more than 3ms.
  • a method is needed to achieve more reasonable use of the transmission resources of the side link and improve transmission efficiency.
  • Embodiments of the present application provide a method and device for determining communication resources, which can improve transmission efficiency.
  • an embodiment of the present application provides a method for determining a communication resource, including a first device determining a first frequency domain resource, the first frequency domain resource is a frequency domain resource occupied by a data channel, and the first The bandwidth of the frequency domain resource is N frequency domain units.
  • the first device knows the size N and position of the first frequency domain resource and the bandwidth of the first channel, and then determines the second frequency domain according to the bandwidth of the first channel and the first frequency domain resource Resources, the frequency bandwidth of the first channel is M frequency domain units, the second frequency domain resource is the frequency domain resource occupied by the first channel, wherein the second frequency domain resource is the first In a subset of frequency domain resources, M ⁇ N, the M and N are positive integers.
  • the first device sends the first channel on the second frequency domain resource, where the first channel may be a control channel, or the first channel may be a feedback channel.
  • the method for determining communication resources provided in the first aspect can coordinate the control information with the frequency domain resources of the scheduled data.
  • the first device determines the second frequency domain resources according to the bandwidth of the first channel and the first frequency domain resources. In the case of different bandwidths, the determined second frequency domain resource has a different frequency domain position relative to the first frequency domain resource, and the second frequency domain resource is a subset of the first frequency domain resource, and the first device can coordinate more reasonably
  • the frequency domain resources occupied by the first channel and the data channel enable the first channel and the data channel to be multiplexed in an optimal manner under different circumstances, improve the efficiency of data transmission in the system, and reduce in-band radiation between different devices IBE interference.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource and the first frequency domain resource
  • the starting point of the frequency domain coincides with or the end of the frequency domain of the second frequency domain resource coincides with the end of the frequency domain of the first frequency domain resource.
  • this possible design satisfies the M ⁇ the N ⁇ threshold W, where the threshold W>the M, and the W is a positive integer.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource is away from the first frequency domain resource
  • the bandwidth of the starting point of the frequency domain is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource and the frequency of the first data subchannel The domain start points coincide, or the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the first data subchannel; wherein the first data subchannel is at least one occupied by the first frequency domain resource The data subchannel centered in the data subchannel.
  • the frequency domain unit is a physical resource block (PRB), or the frequency domain unit is a subchannel.
  • PRB physical resource block
  • the time domain start point of the first channel and the data channel start point coincide, or the time domain end point of the first channel and the data channel end point coincide, or the first The time domain boundary of the channel is within the time domain boundary of the data channel.
  • the time domain end point of the first channel coincides with the time domain start point of the data channel, or the time domain start point of the first channel coincides with the time domain end point of the data channel.
  • the transmission parameters of the first channel are different from the transmission parameters of the data channel, and the transmission parameters include at least one of the following parameters: antenna port number, multiple input multiple output MIMO transmission method, or quasi co-location QCL Indication information, wherein the MIMO transmission method is one of the following: beamforming, spatial multiplexing, or transmit diversity.
  • the determining the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource includes: according to the bandwidth M of the first channel and the first frequency Domain resource and the first parameter to determine the second frequency domain resource.
  • the first parameter may be one parameter or multiple parameters, which is not limited in the embodiments of the present application.
  • the first parameter includes an identifier related to a transmission link, where the transmission link refers to a link between the first device and the second device.
  • the identifier related to the transmission link may be the identifier of the first device, the identifier of the second device, the joint identifier of the first device and the second device, or the temporary wireless network identifier used by the network device when scheduling the first device (radio network temporary identifier (RNTI), the RNTI used by the network device when scheduling the second device, or the HARQ process number used by the first device and the second device.
  • RNTI radio network temporary identifier
  • the first parameter may also include subcarrier spacing.
  • the first parameter may also include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method further includes receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information further includes indication information of the feedback resource.
  • the first parameter may further include at least one of the following parameters: 1.
  • the geographic location information of the first device for example, the geographic location information may be the identifier of the zone to which the first device belongs or the location of the zone Information; 2. Scheduling information of side link resources; 3. Frequency domain resources occupied by the second data; 4. Frequency domain resources occupied by the second control information; 5.
  • Indication information of the feedback resources sent by the second device for example A field in the second control information indicates the feedback resource explicitly or implicitly; 6.
  • the number of retransmissions of the second data which may be indicated by the second control information.
  • an embodiment of the present application provides a method for determining communication resources, including a first device determining a first time domain resource, where the first time domain resource is a time domain resource occupied by a data channel, and the first time domain resource Including its starting position in the time slot, the number of symbols occupied in the time slot, and the number of occupied time slots.
  • the first device determines the second time domain resource according to the transmission parameter of the control channel and the transmission parameter of the data channel, and then the first device sends the control channel on the second time domain resource.
  • the transmission parameters include at least one of the following parameters: antenna port number, multiple-input multiple-output (MIMO) transmission mode, or quasi-colocation (quasi-colocation, QCL) instructions
  • the MIMO transmission method is one of the following parameters: beamforming, spatial multiplexing, or transmit diversity; wherein, the transmit diversity includes: space-time block codes ( space time block (STBC), space frequency block code (SFBC), cyclic delay diversity (Cyclic Delay Diversity, CDD).
  • STBC space time block
  • SFBC space frequency block code
  • CDD Cyclic Delay Diversity
  • the determining the second time domain resource according to the transmission parameters of the control channel and the transmission parameters of the data channel includes: transmitting parameters of the control channel and the transmission of the data channel When the parameters are the same, the time domain start point of the control channel and the data channel start point coincide, or the time domain end point of the control channel and the data channel end point coincide, or the control channel The time domain boundary of is within the time domain boundary of the data channel; when the transmission parameter of the control channel is different from the transmission parameter of the data channel, the time domain end point of the control channel is different from the data channel The time domain starting point coincides, or the control channel time domain starting point coincides with the data channel time domain ending point.
  • the transmission parameter of the control channel and the transmission parameter of the data channel are notified through signaling, or the first terminal device is determined according to unicast, multicast or broadcast related indication information, or pre-defined.
  • the method before the sending the control channel on the second time domain resource, the method further includes: performing a rate on the data carried by the data channel according to the second time domain resource Match or punch.
  • the first device can determine the time-domain relationship between the data channel and the control channel according to the transmission parameters, and respectively determine different time-domain multiplexing modes under different transmission conditions to ensure transmission efficiency. On the basis of more reasonable use of time domain resources.
  • an embodiment of the present application provides a method for determining a communication resource, including a first device acquiring a first parameter, where the first parameter includes an identification related to a transmission link and/or information related to a transmission resource .
  • the first parameter may be one parameter or multiple parameters, which is not limited here.
  • the first device is used to transmit the frequency domain resource of the first channel according to the first parameter.
  • the first channel may be a control channel, and the control channel carries control information, or the first channel may also be a feedback channel, The channel carries feedback information.
  • the first device sends the first channel to the second device on the determined frequency domain resource.
  • the frequency domain resource used to transmit the first channel is a subset of the first frequency domain resource, wherein the second-one frequency domain resource is a frequency domain resource occupied by a data channel.
  • the identification related to the transmission link may be the identification of the first device, the identification of the second device UE, the joint identification of the first device and the second device UE, and the network device scheduling the first device RNTI used at the time, the wireless network temporary identifier (RNTI) used by the network device to schedule the second device, the hybrid automatic repeat request (HARQ) process used by the first device and the second device number.
  • RNTI wireless network temporary identifier
  • HARQ hybrid automatic repeat request
  • the first parameter may also include a subcarrier interval.
  • the first parameter may also include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the first parameter may further include the bandwidth N of the first frequency domain resource, and/or the frequency domain position of the first frequency domain resource.
  • the first frequency domain resource is a frequency domain resource occupied by the first data channel
  • the first data channel is a data channel that belongs to the same physical layer and is sent by the first channel.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method may include receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information includes indication information of feedback resources.
  • the first parameter may include at least one of the following parameters: 1.
  • the geographic location information of the first device for example, the geographic location information may be the identifier of the zone to which the first device belongs or the location information of the zone 2. Scheduling information of side link resources; 3. Frequency domain resources occupied by the second data; 4. Frequency domain resources occupied by the second control information; 5.
  • Indication information of the feedback resources sent by the second device such as the first A field in the second control information indicates the feedback resource explicitly or implicitly; 6.
  • the number of retransmissions of the second data which may be indicated by the second control information.
  • the first parameter may be one of the above parameters, or the first parameter may also include at least two of the above parameters.
  • the determining the frequency domain resource for sending the first channel according to the first parameter includes the first device determining the frequency domain resource for sending the first channel from the first frequency domain resource set according to the first parameter Frequency domain resources, the bandwidth of the first frequency domain resource set is L frequency domain units, and L is a positive integer.
  • the first frequency domain resource set may be a frequency domain resource set occupied by a side link resource pool, or the first resource set may be a frequency domain resource set occupied by a control resource pool dedicated to sending control information and/or Resource pool for feedback information.
  • the determining the frequency domain resource for sending the first channel according to the first parameter includes the first device determining the frequency domain for sending the first channel according to the correspondence between the first parameter and the frequency domain resource Resources. Different values of the first parameter may correspond to different frequency domain resources, and this correspondence may be predefined.
  • the first device may calculate the frequency domain resource used to transmit the first channel according to the calculation method defined in the standard. Exemplarily, the first device may be calculated to transmit the first channel.
  • the index Y of the starting frequency domain unit of the frequency domain resource is the first device determining the frequency domain for sending the first channel according to the correspondence between the first parameter and the frequency domain resource Resources. Different values of the first parameter may correspond to different frequency domain resources, and this correspondence may be predefined.
  • the first device may calculate the frequency domain resource used to transmit the first channel according to the calculation method defined in the standard. Exemplarily, the first device may be calculated to transmit the first channel.
  • the index Y of the starting frequency domain unit of the frequency domain resource is determining the frequency domain for sending the first channel according to the correspondence between the
  • the first device uses the value of all bits or part of the bits of the first parameter to determine the frequency domain resource used to send the first channel.
  • determining the first frequency domain resource includes determining the starting PRB index or starting subchannel index of the frequency domain resource occupied by the first channel.
  • the first device determines the frequency domain resource of the first channel according to the first parameter through the above method, so that different frequency domain resource of the first channel can be correspondingly obtained according to the difference of the first parameter
  • the location reduces the chance that the frequency domain resources from different devices sending the first channel overlap to cause interference, and improves transmission performance.
  • an embodiment of the present application provides a method for determining a communication resource
  • a second device detects a control channel
  • the control channel occupies a third frequency domain resource
  • the bandwidth of the third frequency domain resource is G Frequency domain resources
  • the control information carried by the control channel indicates the bandwidth of the data channel
  • the bandwidth of the data channel is N frequency domain units, where the G ⁇ the N, and the G, the N is a positive integer.
  • the second device determines the first frequency domain resource according to the third frequency domain resource and the N, and then detects the data channel on the first frequency domain resource.
  • the second device can be determined according to the same rule as the sender, that is, the first device, according to the detected frequency domain size and position of the control channel and the bandwidth N of the data channel indicated by the control information The frequency domain position of the data channel.
  • the second device and the first device are based on the same understanding.
  • the first device can more reasonably coordinate the frequency domain resources occupied by the first channel and the data channel, the data channel to be received is correctly detected to save signaling overhead .
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the third frequency domain resource and the first frequency domain resource
  • the starting point of the frequency domain coincides with or the end of the frequency domain of the third frequency domain resource coincides with the end of the frequency domain of the first frequency domain resource.
  • the G the N ⁇ threshold W, where the threshold W>the G, and the W is a positive integer.
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including:
  • the bandwidth of the frequency domain starting point of the third frequency domain resource from the frequency domain starting point of the first frequency domain resource is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • control information also indicates the bandwidth of the feedback channel, and the bandwidth of the feedback channel is K frequency domain units, where K ⁇ the N and K is a positive integer;
  • the method provided in the fourth aspect further includes: a second device determining a fourth frequency domain resource according to the K and the first frequency domain resource; and a second device detecting the feedback channel on the fourth frequency domain resource.
  • the boundary of the fourth frequency domain resource is located within the boundary of the first frequency domain resource, including: in the case where the K ⁇ the N ⁇ threshold W, the fourth The frequency domain starting point of the frequency domain resource coincides with the frequency domain starting point of the first frequency domain resource, or the frequency domain end point of the fourth frequency domain resource coincides with the frequency domain end point of the first frequency domain resource; wherein
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including: In the case of W, the bandwidth of the frequency domain starting point of the third frequency domain resource from the frequency domain starting point of the first frequency domain resource is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • the frequency domain unit is a physical resource block (PRB), or the frequency domain unit is a subchannel.
  • PRB physical resource block
  • an embodiment of the present application provides an apparatus for determining communication resources, including a processor and a memory and a transceiver coupled to the processor; wherein,
  • the processor is used to determine a first frequency domain resource, the first frequency domain resource is a frequency domain resource occupied by a data channel, and the bandwidth of the first frequency domain resource is N frequency domain units.
  • the size N and position of the first frequency domain resource and the bandwidth of the first channel are known, and the processor is used to determine the second frequency based on the bandwidth of the first channel and the first frequency domain resource Frequency domain resources, the bandwidth of the first channel is M frequency domain units, the second frequency domain resources are frequency domain resources occupied by the first channel, wherein the second frequency domain resources are the In a subset of the first frequency domain resources, the M ⁇ the N, the M and the N are positive integers.
  • the transceiver is used to send the first channel on the second frequency domain resource, where the first channel may be a control channel, or the first channel may be a feedback channel.
  • the apparatus for determining communication resources provided in the fifth aspect can coordinate the control information with the frequency domain resources of the data scheduled by the apparatus.
  • the apparatus determines the second frequency domain resources based on the bandwidth of the first channel and the first frequency domain resources. In the case of different bandwidths, the frequency domain position of the second frequency domain resource determined with respect to the first frequency domain resource is different, and the second frequency domain resource is a subset of the first frequency domain resource, and the device can coordinate more reasonably
  • the frequency domain resources occupied by the first channel and the data channel enable the first channel and the data channel to be multiplexed in an optimal manner under different circumstances, improve the efficiency of data transmission in the system, and reduce in-band radiation between different devices IBE interference.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource and the first frequency domain resource
  • the starting point of the frequency domain coincides with or the end of the frequency domain of the second frequency domain resource coincides with the end of the frequency domain of the first frequency domain resource.
  • this possible design satisfies the M ⁇ the N ⁇ threshold W, where the threshold W>the M, and the W is a positive integer.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource is away from the first frequency domain resource
  • the bandwidth of the starting point of the frequency domain is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the second frequency domain resource and the frequency of the first data subchannel The domain start points coincide, or the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the first data subchannel; wherein the first data subchannel is at least one occupied by the first frequency domain resource The data subchannel centered in the data subchannel.
  • the frequency domain unit is a physical resource block (PRB), or the frequency domain unit is a subchannel.
  • PRB physical resource block
  • the time domain start point of the first channel and the data channel start point coincide, or the time domain end point of the first channel and the data channel end point coincide, or the first The time domain boundary of the channel is within the time domain boundary of the data channel.
  • the time domain end point of the first channel coincides with the time domain start point of the data channel, or the time domain start point of the first channel coincides with the time domain end point of the data channel.
  • the transmission parameters of the first channel are different from the transmission parameters of the data channel, and the transmission parameters include at least one of the following parameters: antenna port number, multiple input multiple output MIMO transmission method, or quasi co-location QCL Indication information, wherein the MIMO transmission method is one of the following: beamforming, spatial multiplexing, or transmit diversity.
  • the determining the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource includes: according to the bandwidth M of the first channel and the first frequency Domain resource and the first parameter to determine the second frequency domain resource.
  • the first parameter may be one parameter or multiple parameters, which is not limited in the embodiments of the present application.
  • the first parameter includes an identifier related to a transmission link, where the transmission link refers to a link between the first device and the second device.
  • the identifier related to the transmission link may be the identifier of the first device, the identifier of the second device, the joint identifier of the first device and the second device, or the temporary wireless network identifier used by the network device when scheduling the first device (radio network temporary identifier (RNTI), the RNTI used by the network device when scheduling the second device, or the HARQ process number used by the first device and the second device.
  • RNTI radio network temporary identifier
  • the first parameter may also include subcarrier spacing.
  • the first parameter may also include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method further includes receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information further includes indication information of the feedback resource.
  • the first parameter may further include at least one of the following parameters: 1.
  • the geographic location information of the first device for example, the geographic location information may be the identifier of the zone to which the first device belongs or the location of the zone Information; 2. Scheduling information of side link resources; 3. Frequency domain resources occupied by the second data; 4. Frequency domain resources occupied by the second control information; 5.
  • Indication information of the feedback resources sent by the second device for example A field in the second control information indicates the feedback resource explicitly or implicitly; 6.
  • the number of retransmissions of the second data which may be indicated by the second control information.
  • an embodiment of the present application provides an apparatus for determining communication resources, including a processor and a memory and a transceiver coupled with the processor; wherein,
  • the processor is used to determine a first time domain resource, the first time domain resource is a time domain resource occupied by a data channel, and the first time domain resource includes its starting position in the time slot and the symbol occupied in the time slot Number, and the number of time slots occupied.
  • the processor is configured to determine a second time domain resource according to the transmission parameter of the control channel and the transmission parameter of the data channel, and then the transceiver sends the control channel on the second time domain resource.
  • the transmission parameters include at least one of the following parameters: antenna port number, multiple-input multiple-output (MIMO) transmission mode, or quasi-colocation (quasi-colocation, QCL) instructions
  • the MIMO transmission method is one of the following parameters: beamforming, spatial multiplexing, or transmit diversity; wherein, the transmit diversity includes: space-time block codes ( space time block (STBC), space frequency block code (SFBC), cyclic delay diversity (Cyclic Delay Diversity, CDD).
  • STBC space time block
  • SFBC space frequency block code
  • CDD Cyclic Delay Diversity
  • the processor is configured to determine the second time domain resource according to the transmission parameter of the control channel and the transmission parameter of the data channel, including: the transmission parameter of the control channel and the data
  • the transmission parameter of the control channel and the data channel start point coincide, or the time domain end point of the control channel and the data channel end point coincide, or all
  • the time domain boundary of the control channel is within the time domain boundary of the data channel; when the transmission parameter of the control channel is different from the transmission parameter of the data channel, the time domain end point of the control channel is different from the The time domain starting point of the data channel coincides, or the time domain starting point of the control channel coincides with the time domain end point of the data channel.
  • the transmission parameter of the control channel and the transmission parameter of the data channel are notified through signaling, or the first terminal device is determined according to unicast, multicast or broadcast related indication information, or pre-defined.
  • the processor before the transceiver is used to send the control channel on the second time domain resource, the processor is further used to control the transceiver according to the second time domain resource pair
  • the data carried on the data channel is rate matched or punctured.
  • the time-domain relationship between the data channel and the control channel can be determined according to the transmission parameters of the two channels, and different time-domain multiplexing methods can be separately determined under different transmission conditions. Reasonable use of time domain resources.
  • an embodiment of the present application provides an apparatus for determining communication resources, including a processor and a memory and a transceiver coupled with the processor; wherein,
  • the processor is used to control the transceiver to acquire a first parameter, where the first parameter includes an identification related to a transmission link and/or information related to transmission resources.
  • the first parameter may be one parameter or multiple parameters, which is not limited here.
  • the processor is used to determine a frequency domain resource for transmitting the first channel according to the first parameter.
  • the first channel may be a control channel, the control channel carries control information, or the first channel may also be feedback Channel, the feedback channel carries feedback information.
  • the transceiver sends the first channel to the second device on the determined frequency domain resource.
  • the frequency domain resource used to transmit the first channel is a subset of the first frequency domain resource, wherein the second-one frequency domain resource is a frequency domain resource occupied by a data channel.
  • the identification related to the transmission link may be the identification of the first device, the identification of the second device UE, the joint identification of the first device and the second device UE, and the network device scheduling the first device RNTI used at the time, the wireless network temporary identifier (RNTI) used by the network device to schedule the second device, the hybrid automatic repeat request (HARQ) process used by the first device and the second device number.
  • RNTI wireless network temporary identifier
  • HARQ hybrid automatic repeat request
  • the first parameter may also include a subcarrier interval.
  • the first parameter may also include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the first parameter may further include the bandwidth N of the first frequency domain resource, and/or the frequency domain position of the first frequency domain resource.
  • the first frequency domain resource is a frequency domain resource occupied by the first data channel
  • the first data channel is a data channel that belongs to the same physical layer and is sent by the first channel.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method further includes receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information includes indication information of feedback resources.
  • the first parameter may include at least one of the following parameters: 1.
  • the geographic location information of the first device for example, the geographic location information may be the identifier of the zone to which the first device belongs or the location information of the zone 2. Scheduling information of side link resources; 3. Frequency domain resources occupied by the second data; 4. Frequency domain resources occupied by the second control information; 5.
  • Indication information of the feedback resources sent by the second device such as the first A field in the second control information indicates the feedback resource explicitly or implicitly; 6.
  • the number of retransmissions of the second data which may be indicated by the second control information.
  • the first parameter may be one of the above parameters, or the first parameter may also include at least two of the above parameters.
  • the processor is configured to determine a frequency domain resource for sending the first channel according to the first parameter, including the processor determining the first frequency domain resource set for sending according to the first parameter
  • the frequency domain resource of the first channel, the bandwidth of the first frequency domain resource set is L frequency domain units, and L is a positive integer.
  • the first frequency domain resource set may be a frequency domain resource set occupied by a side link resource pool, or the first resource set may be a frequency domain resource set occupied by a control resource pool dedicated to sending control information and/or Resource pool for feedback information.
  • the processor is used to determine a frequency domain resource for sending the first channel according to the first parameter, including the processor is used to determine the frequency domain resource for sending according to the first parameter and the frequency domain resource.
  • the processor may calculate the frequency domain resource used to transmit the first channel according to a calculation method defined by a standard. Exemplary , May be the index Y of the starting frequency domain unit of the frequency domain resource used for transmitting the first channel.
  • the processor uses the value of all bits or part of the bits of the first parameter to determine the frequency domain resource used to send the first channel.
  • determining the first frequency domain resource includes determining the starting PRB index or starting subchannel index of the frequency domain resource occupied by the first channel.
  • the processor determines the frequency domain resource of the first channel according to the first parameter through the above method, so that different frequency domain resources of the first channel can be correspondingly obtained according to different first parameters
  • the location of the channel reduces the chance that the frequency domain resources from different devices sending the first channel overlap to cause interference, and improves the transmission performance.
  • an embodiment of the present application provides an apparatus for determining communication resources, including a processor and a memory and a transceiver coupled to the processor; wherein the processor is used to control the transceiver to detect a control channel ,
  • the control channel occupies a third frequency domain resource, and the bandwidth of the third frequency domain resource is G frequency domain resources, the control information carried by the control channel indicates the bandwidth of the data channel, and the data channel
  • the bandwidth is N frequency domain units, where the G ⁇ the N, and the G and the N are positive integers.
  • the processor is used to determine a first frequency domain resource according to the third frequency domain resource and the N, and then the transceiver is used to detect the data channel on the first frequency domain resource.
  • the processor may follow the same rules as the sender, that is, the first device, according to the detected frequency domain size and position of the control channel and the bandwidth N of the data channel indicated by the control information Determine the frequency domain position of the data channel.
  • the receiving device and the transmitting device are based on the same understanding. On the premise that the transmitting device can more reasonably coordinate the frequency domain resources occupied by the first channel and the data channel, the device can correctly detect the data channel to be received, saving signaling Overhead.
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including: the frequency domain starting point of the third frequency domain resource and the first frequency domain resource
  • the starting point of the frequency domain coincides with or the end of the frequency domain of the third frequency domain resource coincides with the end of the frequency domain of the first frequency domain resource.
  • the G the N ⁇ threshold W, where the threshold W>the G, and the W is a positive integer.
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including:
  • the bandwidth of the frequency domain starting point of the third frequency domain resource from the frequency domain starting point of the first frequency domain resource is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • control information also indicates the bandwidth of the feedback channel, and the bandwidth of the feedback channel is K frequency domain units, where K ⁇ the N and K is a positive integer;
  • the processor is further configured to determine a fourth frequency domain resource according to the K and the first frequency domain resource; a second device detects the feedback channel on the fourth frequency domain resource .
  • the boundary of the fourth frequency domain resource is located within the boundary of the first frequency domain resource, including: in the case where the K ⁇ the N ⁇ threshold W, the fourth The frequency domain starting point of the frequency domain resource coincides with the frequency domain starting point of the first frequency domain resource, or the frequency domain end point of the fourth frequency domain resource coincides with the frequency domain end point of the first frequency domain resource; wherein
  • the boundary of the third frequency domain resource is located within the boundary of the first frequency domain resource, including: In the case of W, the bandwidth of the frequency domain starting point of the third frequency domain resource from the frequency domain starting point of the first frequency domain resource is or Frequency domain units; or, the bandwidth of the frequency domain end point of the second frequency domain resource from the frequency domain end point of the first frequency domain resource is or Frequency domain units.
  • the frequency domain unit is a physical resource block (PRB), or the frequency domain unit is a subchannel.
  • PRB physical resource block
  • the first device may be a terminal device, or a network device, or may be a terminal device or an apparatus in a network device that performs the above method.
  • the second device may be a terminal device, or a network device, or may be a terminal device or an apparatus in a network device that performs the above method.
  • a communication device is provided, and the communication device is used to perform the function of the behavior of the first device or the second device in the above method.
  • These functions can be realized by hardware, and can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above functions.
  • a computer storage medium containing instructions which, when run on a computer, cause the computer to perform the function of the behavior of the first device or the second device in the above method.
  • FIG. 1 is a schematic diagram of a communication scenario applied in an embodiment of the present application
  • FIG. 2 is a schematic diagram of a possible structure of a network device according to an embodiment of this application.
  • FIG. 3 is a schematic diagram of a possible structure of a terminal device in an embodiment of the present application.
  • FIG. 5 is a possible schematic diagram of the frequency domain position of the first channel in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a possible frequency domain position of a first channel in an embodiment of the present application.
  • FIG. 8 shows a possible schematic diagram of the frequency domain position of the first channel in the embodiment of the present application.
  • FIG. 9 is a possible schematic diagram of the frequency domain position of the first channel in the embodiment of the present application.
  • One in the embodiments of the present invention means a single individual, and does not mean that it can only be a specific individual and cannot be applied to other individuals.
  • a terminal device in the embodiment of the present invention refers to a specific terminal device, and does not mean that it can only be applied to a specific terminal device.
  • system may be used interchangeably with "network”.
  • the terms "and/or” and “at least one” used in the case of "A and/or B” and “at least one of A and B” in the embodiments of the present invention include any one of the three schemes, That is, a plan including A but not B, a plan including B excluding A, and a plan including both options A and B.
  • such a phrase includes any of the six schemes, that is, includes A but excluding B and C, including B excluding A and C, including C but not A and B, including A and B but not C, including B and C but not A Plan, including A and C but not B, and the three options A, B, and C.
  • the embodiments of the present invention can be understood in the above manner.
  • the words “first” and “second” are used to distinguish the same or similar items that have substantially the same functions and functions.
  • the first terminal and the second terminal are only for distinguishing different terminals, and their order is not limited.
  • the words “first” and “second” do not limit the number and execution order, and the words “first” and “second” do not necessarily mean different.
  • V2X communication system includes vehicle-to-vehicle (V2V), vehicle-to-person (Vehicle to Pedestrian, V2P) (including pedestrians, cyclists, drivers, or passengers), vehicle-to-infrastructure (V2I) ) (For example, vehicle-to-roadside unit (RSU) communication) and vehicle-to-network (V2N) (for example, vehicle-to-base station/network communication) intelligent transportation services.
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-person
  • V2I vehicle-to-infrastructure
  • RSU vehicle-to-roadside unit
  • V2N vehicle-to-network
  • V2V/V2I/V2P data communications use side links for communications.
  • the base station type RSU can provide timing synchronization and resource scheduling to the vehicles it communicates with.
  • FIG. 1 shows a schematic diagram of a communication system to which the embodiments of the present application can be applied.
  • the communication system includes a network device 101 and terminal devices 102-104.
  • the terminal device can establish a cellular link with the network device for wireless communication.
  • the cellular link Generally referred to as Uu link in the communication standard, it refers to the wireless link between the terminal device and the network device, such as the wireless link between the mobile phone or the vehicle-mounted communication device and the base station.
  • direct communication can be performed between the terminal devices through a sidelink (sidelink, SL).
  • sidelink sidelink
  • the network device 101 may be a base station in a cellular network, and the terminal devices 102, 103, and 104 may be in-vehicle wireless communication devices or mobile phones.
  • the terminal device sends control information and scheduled data at a time on the side link.
  • the control information is carried on the control channel, and the data is carried on the data channel.
  • the control information may be a scheduling assignment (SA).
  • SA scheduling assignment
  • the control channel may be a physical sidelink control channel (PSCCH), and the data channel may be a physical sidelink shared channel (PSSCH). If the control information and the scheduled data are too far apart in time, it will increase the delay for the receiver to receive and detect.
  • Embodiments of the present application provide a method for determining communication resources. Under low-latency transmission requirements, coordination of control information and data transmission resources scheduled by them can ensure data transmission efficiency while reducing interference between receivers. . It should be understood that the scenario shown in FIG. 1 is only an example, and is not intended to limit the solution of the present application.
  • the network device involved in this application is a device deployed in a wireless access network to provide wireless communication functions for terminal devices.
  • the network device may be a base station (Base Station, BS), for example, a macro base station, a micro base station, a relay station or an access point, etc., or other forms of equipment, such as a street lamp and a road side unit (RSU).
  • BS Base Station
  • RSU road side unit
  • the names of devices with network device functions may be different.
  • it is a new generation radio (NR) in the fifth generation (5G) network.
  • NodeB Network equipment or base station
  • LTE Long Term Evolution
  • eNB evolved NodeB
  • 3G Third Generation
  • RSU roadside unit
  • SOC chip or system on chip
  • the terminal devices involved in this application may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem or units, components, devices, and chips in the above devices Or SOC.
  • the terminal device may be referred to as a wireless communication device, and may also be referred to as a mobile station (mobile station, MS for short), a terminal, a user equipment (UE), and so on.
  • MS mobile station
  • UE user equipment
  • the terminal device may include a subscriber unit (subscriber unit), a cellular phone (cellular), a smart phone (smart phone), a wireless data card, a personal digital assistant (personal digital assistant (PDA) computer, a tablet computer, a modem ( modem or modem processor, handheld device, handheld computer, laptop computer, netbook, cordless phone or cordless local loop (WLL) station, Bluetooth device , Machine type communication (machine type communication, MTC) terminal, etc.
  • subscriber unit subscriber unit
  • cellular phone cellular
  • smart phone smart phone
  • wireless data card a personal digital assistant (personal digital assistant (personal digital assistant (PDA) computer
  • PDA personal digital assistant
  • modem modem or modem processor
  • handheld device handheld computer
  • laptop computer netbook
  • cordless phone or cordless local loop (WLL) station Bluetooth device
  • Machine type communication machine type communication, MTC terminal, etc.
  • MTC Machine type communication
  • Terminal equipment can support one or more wireless technologies for wireless communication, such as 5G, LTE, WCDMA, CDMA, 1X, Time Division-Synchronous Code Division Multiple Access (Time-Division-Synchronous Code Division Multiple Access, TS-SCDMA), GSM, 802.11, etc.
  • Terminal devices can also support different transmission services or different transmission modes on the cellular link or the sidelink between terminal devices, such as vehicle-to-everything (V2X) services, device to device (device to device, D2D) services, etc., can also support different technical features on the cellular link, such as Internet of Things (IoT), machine type communication (MTC), etc.
  • V2X vehicle-to-everything
  • IoT Internet of Things
  • MTC machine type communication
  • Multiple terminal devices can perform the same or different services. For example, mobile broadband services, enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) services, extremely high reliability and low latency communication (Ultra-Reliable and Low-Latency Communication, URLLC) services, and so on.
  • eMBB enhanced mobile broadband
  • URLLC Ultra-Reliable and Low-Latency Communication
  • the network device can execute the method provided by the embodiment of the present invention.
  • the network device may include: a controller or a processor 201 (the processor 201 is used as an example for description below) and a transceiver 202.
  • the controller/processor 201 is sometimes referred to as a modem processor.
  • the modem processor 201 may include a baseband processor (BBP) (not shown), which processes the digitized received signal to extract the information or data bits conveyed in the signal.
  • BBP baseband processor
  • the BBP is usually implemented as one or more digital signal processors (DSPs) in the modem processor 201 or as separate integrated circuits (ICs) as needed or desired.
  • DSPs digital signal processors
  • ICs integrated circuits
  • the transceiver 202 may be used to support the transmission and reception of information between the network device and the terminal device, and to support the radio communication between the terminal devices.
  • the processor 201 may also be used to perform various communication functions between the terminal device and other network devices.
  • On the uplink the uplink signal from the terminal device is received via the antenna, mediated by the transceiver 202, and further processed by the processor 201 to recover the service data and/or signaling information sent by the terminal device.
  • service data and/or signaling messages are processed by the terminal device, and modulated by the transceiver 202 to generate a downlink signal, which is transmitted to the terminal device via an antenna.
  • the network device may further include a memory 203, which may be used to store program codes and/or data of the network device.
  • the transceiver 202 may include independent receiver and transmitter circuits, or may use the same circuit to implement the transceiver function.
  • the network device may further include a communication unit 204 for supporting the network device 201 to communicate with other network entities. For example, it is used to support the communication between the network device and the network device of the core network.
  • the network device may also include a bus.
  • the transceiver 202, the memory 203, and the communication unit 204 may be connected to the processor 201 through a bus.
  • the bus may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard, Architecture, EISA) bus, or the like.
  • PCI peripheral component interconnect standard
  • EISA Extended Industry Standard, Architecture
  • the bus may include an address bus, a data bus, and a control bus.
  • the terminal device can execute the method provided by the embodiment of the present invention.
  • the terminal device may be any one of the three terminal devices 102-104.
  • the terminal device includes a transceiver 301, an application processor (application processor) 302, a memory 303, and a modem processor (modem processor) 304.
  • application processor application processor
  • modem processor modem processor
  • the transceiver 301 can adjust (eg, analog conversion, filtering, amplification, and up-conversion, etc.) the output samples and generate an uplink signal, which is transmitted to the base station described in the above embodiment via an antenna.
  • the antenna receives the downlink signal transmitted by the network device.
  • the transceiver 301 can condition (eg, filter, amplify, down-convert, digitize, etc.) the signal received from the antenna and provide input samples.
  • the modem processor 304 is sometimes referred to as a controller or processor, and may include a baseband processor (BBP) (not shown) that processes the digitized received signal to extract the information conveyed in the signal Or data bits.
  • BBP baseband processor
  • the BBP is usually implemented in one or more digits within the modem processor 304 or as a separate integrated circuit (IC) as needed or desired.
  • the modem processor 304 may include an encoder 3041, a modulator 3042, a decoder 3043, and a demodulator 3044.
  • the encoder 3041 is used to encode the signal to be transmitted.
  • the encoder 3041 may be used to receive service data and/or signaling messages to be sent on the uplink, and process the service data and signaling messages (eg, formatting, encoding, or interleaving, etc.).
  • the modulator 3042 is used to modulate the output signal of the encoder 3041.
  • the modulator may perform symbol mapping and/or modulation on the output signal (data and/or signaling) of the encoder, and provide output samples.
  • the demodulator 3044 is used to demodulate the input signal.
  • the demodulator 3044 processes input samples and provides symbol estimates.
  • the decoder 5043 is used to decode the demodulated input signal.
  • the decoder 3043 deinterleaves and/or decodes the demodulated input signal, and outputs the decoded signal (data and/or signaling).
  • the encoder 3041, the modulator 3042, the demodulator 3044, and the decoder 3043 may be implemented by a synthesized modem processor 304. These units are processed according to the wireless access technology adopted by the wireless access network.
  • the modem processor 304 receives digitized data that can represent voice, data, or control information from the application processor 302, and processes the digitized data for transmission.
  • the modem processor can support one or more of multiple wireless communication protocols in multiple communication systems, such as LTE, new air interface, Universal Mobile Telecommunications System (UMTS), and high-speed packet access (High Speed Packet Access, HSPA) and so on.
  • the modem processor 304 may also include one or more memories.
  • the modem processor 304 and the application processor 302 may be integrated in one processor chip.
  • the memory 303 is used to store program codes (sometimes referred to as programs, instructions, software, etc.) and/or data for supporting the communication of the terminal device.
  • the memory 203 or the memory 303 may include one or more storage units, for example, it may be a storage unit within the processor 201 or modem processor 304 or application processor 302 for storing program codes, or may It is an external storage unit independent of the processor 201 or the modem processor 304 or the application processor 302, or may be a storage unit including the processor 201 or the modem processor 304 or the application processor 302 and the processor 201 or the modem
  • the processor 304 or the application processor 302 is a component of an independent external storage unit.
  • the processor 201 and the modem processor 301 may be the same type of processor or different types of processors. For example, it can be implemented in a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (Application-Specific Integrated Circuit, ASIC), and a field programmable gate array ( Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, other integrated circuits, or any combination thereof.
  • the processor 201 and the modem processor 301 may implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present invention.
  • the processor may also be a combination of computing function devices, including, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, or a system-on-a-chip (SOC), and so on.
  • FIG. 4 is an interaction schematic diagram of a method 400 for determining communication resources in some embodiments of this application. It should be noted that FIG. 4 and some steps in the following may be optional, and the embodiment of the present invention does not limit that all steps must be included. In addition, the sequence numbers of the steps are only for convenience of description, and do not represent the sequence.
  • Step 401 The first device determines a first frequency domain resource.
  • the first frequency domain resource is a frequency domain resource occupied by a data channel, and the bandwidth of the first frequency domain resource is N frequency domain units.
  • the first device in the embodiment of the present application may be a terminal device, a network device, or an apparatus in a terminal device or a network device that executes the method of the embodiment of the present application.
  • the second device in the embodiment of the present application may be a terminal device, or a network device, or may be a terminal device or an apparatus in the network device that executes the method of the embodiment of the present application.
  • the second device may be a receiving device.
  • the first device sends a control channel the second device is a device that receives the control channel
  • the first device sends a feedback channel the second device is a device that receives the feedback channel.
  • the feedback channel carries feedback information based on data sent by the second device.
  • the second device may be more than one device, and in some cases, the second device may be a group of devices, which is not limited in this application.
  • the first device that is, the sender device, first determines the frequency domain resource occupied by the data channel (first frequency domain resource), and determining the first frequency domain resource includes determining the frequency width and frequency domain position of the first frequency domain resource, that is, data The specific bandwidth occupied by the channel.
  • the first device may determine the first frequency domain resource according to the size of the data to be sent and/or the information of the network configuration, or the first frequency domain resource is configured by the network device. For example, in the transmission mode in which the base station schedules transmission resources, such as the mode 1 transmission of the side link in the NR, the first frequency domain resource of the data sent by the first device is directly indicated to the first device by the base station through signaling.
  • the first device may detect and measure a specific resource or resource set, and select from The available resource location and size.
  • pre-configured signaling can also be used so that terminal devices that do not receive the base station configuration or are outside the network can select a specific resource or resource set (for example, It is called the default resource or default resource set), select the available resources, and use the scheduling-free method to determine the transmission resources on the side link.
  • the frequency domain unit described in this application refers to a scheduling unit in the frequency domain.
  • the optional frequency domain unit may be a physical resource block (PRB), or the frequency domain unit may also be a sub-channel (sub-channel) ), the frequency domain size of the sub-channel can be multiple PRBs, for example one sub-channel can be 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 25, 30, 48, 50, 72, 96, 100 PRBs.
  • the frequency domain size of the sub-channel may be predefined, or may be semi-statically configured by the network device through high-level signaling. It should be understood that, in a communication system, different channels may correspond to different subchannel sizes.
  • the data subchannel corresponding to the data channel is 8PRB
  • the control subchannel corresponding to the control channel is 4PRB.
  • the set of subchannel sizes corresponding to the data channel and the set of subchannel sizes corresponding to the control channel are independently configured.
  • the set of sub-channel sizes corresponding to data channels can be configured as ⁇ 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 25, 30, 48, 50, 72, 96, 100 ⁇ PRBs
  • the set of sub-channel sizes corresponding to control channels can be configured as ⁇ 4, 8, 16 ⁇ PRBs.
  • transmissions with different subcarrier intervals correspond to different subchannel configurations.
  • the size of the sub-channel under the transmission of different sub-carrier intervals may be different.
  • the subcarrier spacings of 15 kHz, 30 kHz, 60 kHz and 120 kHz there is a one-to-one correspondence of one sub-channel configuration.
  • multiple sub-carriers correspond to the same sub-channel configuration.
  • the sub-channel configurations of 15 kHz and 30 kHz sub-carrier spacing are the same, and the sub-carrier spacing configurations of 60 kHz and 120 kHz are different.
  • the larger the subcarrier interval the more PRBs occupied in the subchannel.
  • the number of control information symbols may be different.
  • the unit of the frequency bandwidth in the embodiment of the present application is a frequency domain unit, and the above description of the frequency domain unit is applicable to various examples in the present application, and the same parts will not be repeated here.
  • the bandwidth of the first frequency domain resource may be indicated by the base station, for example, the base station indicates the number of frequency domain units occupied by the data channel, such as 8PRB, 20PRB, or 48PRB.
  • the terminal device can know the number of PRBs occupied by the first frequency domain resource according to the configured length of the subchannel and the indicated number of subchannels, for example, the size of the subchannel is 4 PRBs , Indicating 2 sub-channels, that is, occupying 8 PRBs in total.
  • the bandwidth of the first frequency domain resource may be determined by the first device itself, then the first device needs to select one based on the shared resources or the usage of other devices in the resource set, and the interference on the current channel.
  • the best location and resource size for your own use For example, when there are few users or the channel is relatively idle, and the first device has larger data packets to transmit, the first device can try to select a larger bandwidth at a time; when there are many users or the channel is relatively congested, the first device You can choose a smaller bandwidth.
  • the selected resource may be multiple PRBs or multiple subchannels. When actually occupied, the first device may fill up the selected sub-channel or not.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may be implemented by the processor 201 in the network device described above.
  • Step 402 The first device determines the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource.
  • the bandwidth of the first channel is M frequency domain units, where the second frequency domain resource is a subset of the first frequency domain resource, M ⁇ N, and M and N are positive integers.
  • the second frequency domain resource described in the embodiment of the present application is a subset of the first frequency domain resource means that in terms of frequency domain, the frequency domain resource occupied by the second frequency domain resource and the first frequency domain resource
  • the resources occupied by the domain resources are completely the same, or the resources occupied by the second frequency domain resources are part of the first frequency domain resources.
  • the first channel may be a control channel.
  • the control information carried in the control channel may include data resource information, and the optional control information may also include feedback information.
  • the data resource information refers to The information required by the receiving device to receive the data.
  • the control channel may be a physical sidelink control channel (physical sidelink control channel, PSCCH).
  • the PSCCH carries sidelink control information (sidelink control information, SCI), and is sometimes called scheduling assignment (scheduling). assignment, SA).
  • SCI sidelink control information
  • SA scheduling assignment
  • the information included in the SCI is usually used to indicate the necessary information when the receiver receives its associated data, for example: modulation and coding method, time domain time slot or symbol indication information, frequency domain position and size of the data Information, or instructions on whether to retransmit, etc.
  • the above-mentioned first channel may also be a feedback channel, and the feedback channel carries feedback information.
  • the feedback information may include response information of a hybrid automatic repeat request (HARQ) indicating whether the demodulated data of the receiver is correct.
  • HARQ hybrid automatic repeat request
  • Channel state information CSI Channel State Information
  • the CSI includes an indication of channel quality, multiple-input multiple-output (MIMO) transmission-related parameters, and so on.
  • the feedback channel may be a physical sidelink feedback channel (physical sidelink feedback channel PSFCH), and the feedback information on the sidelink is carried on the PSFCH.
  • PSFCH physical sidelink feedback channel
  • the above control channel and feedback channel may also be other specific control channels and feedback channels.
  • the bandwidth M of the first channel may be predefined or determined by the first device according to signaling.
  • the frequency width M of the first channel may be predefined, and the frequency width of the control channel is defined as M PRBs in the standard, and M may be fixed at 4, or 6 or 8.
  • M may be fixed at 4, or 6 or 8.
  • the bandwidth M of the first channel may be determined by the first device according to signaling. For example, when the first device does not send data beyond the symbols occupied by the first channel, in order to reduce the waste of system resources brought about at this time, the number of symbols of the first channel may be smaller and the bandwidth of the first channel may be larger , Such as 8PRB. When the first device needs to send data beyond the symbols occupied by the first channel, there will be no problem of wasting system resources at this time, the number of symbols of the first channel may be slightly larger, and the bandwidth of the first channel may be smaller, such as 4PRB.
  • Which value to use at this time is determined according to other parameters configured by the system, such as the first device according to whether the antenna ports of the first channel and the data channel are the same, and whether the MIMO transmission methods of the first channel and the data channel are the same, etc. Factors to determine.
  • the first device may determine the second frequency domain resource according to the bandwidth M of the first channel and the first frequency domain resource.
  • the first frequency domain resource includes the bandwidth N of the first frequency domain resource and the first frequency domain resource Location in the frequency domain.
  • the second frequency domain resource is the frequency domain resource occupied by the first channel, and the first device may determine the first channel according to the bandwidth M of the first channel and the bandwidth N of the data channel (that is, the bandwidth N of the first frequency domain resource) With respect to the frequency domain position of the data channel, since the frequency domain position of the data channel is known at this time, the first device can further determine the frequency domain resource occupied by the first channel (ie, the second frequency domain resource).
  • the boundary of the second frequency domain resource located within the boundary of the first frequency domain resource may include two ways.
  • Manner 1 The frequency domain starting point of the second frequency domain resource coincides with the frequency domain starting point of the first frequency domain resource, or the frequency domain end point of the second frequency domain resource coincides with the frequency domain end point of the first frequency domain resource. That is, in manner 1, the second frequency domain resource is aligned with one side of the first frequency domain resource. For example, as shown in FIG. 6, the end of the frequency domain of the first channel coincides with the end of the frequency domain of the data channel.
  • Manner 2 The second frequency domain resource is located as far as possible in the middle of the first frequency resource. For example, as shown in FIG.
  • the frequency domain starting point of the second frequency domain resource is away from the frequency domain of the first frequency domain resource
  • the bandwidth of the starting point is or Means round down Indicates rounding up; or, the bandwidth of the end of the frequency domain of the second frequency domain resource from the end of the frequency domain of the first frequency domain resource is or
  • N is 8 and M is 4
  • the start of the frequency domain of the second frequency domain resource is two frequency domain units away from the start of the frequency domain of the first frequency domain resource
  • the end of the frequency domain of the second frequency domain resource is away from the first frequency
  • the frequency domain end point of the domain resource is also two frequency domain units, and the second frequency domain resource is located in the middle of the first frequency domain resource.
  • the frequency domain resource occupied by the first channel is aligned with one side of the frequency domain resource occupied by the data channel.
  • the data channel is located directly below the first channel and is connected to the first channel
  • the part occupying the same time-domain position has continuous frequency-domain resources, so this part of the data channel frequency-multiplexed with the first channel can have more room for demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • the frequency domain resource occupied by the first channel is located in the middle part of the frequency domain resource of the data channel, and the distance between the frequency domain occupied by the first channel of the first device and the first channel of other devices is evenly increased, for example
  • the first channel is a control channel
  • the distance between the frequency domain resource occupied by the control channel of the first device and the frequency domain resource occupied by the control channel of other devices increases, which can reduce the in-band radiation generated by the data sent by other devices or the control channel Interference (in-band emission, IBE) interferes with the control channel sent by the first device.
  • IBE in-band emission
  • the second frequency domain resource in the case of M ⁇ N, satisfies any one of mode 1 and mode 2.
  • the first device further determines the manner in which the second frequency domain resource is satisfied according to the threshold. Specifically, when the bandwidth N of the first frequency domain resource is less than the threshold W, that is, when M ⁇ N ⁇ W, it is determined that the second frequency domain resource satisfies Mode 1, W is a positive integer, and W>M, In this case, the difference between the bandwidth of the data channel and the bandwidth of the first channel is in a relatively small range. In the first way, the data channel is located directly below the first channel and occupies the same time domain as the first channel.
  • the part of the location has continuous frequency domain resources, so this part of the data channel frequency-multiplexed with the first channel can have more resources to place the demodulation reference signal (DMRS), which can improve the data to use its DMRS Demodulation performance, improve transmission efficiency.
  • DMRS demodulation reference signal
  • the bandwidth N of the first frequency domain resource is less than the threshold W, that is, N ⁇ W
  • the second frequency domain resource satisfies Mode 2
  • the frequency domain resource occupied by the first channel can be located in the middle part of the frequency domain resource of the data channel.
  • the data channel is located above and below the first channel and Both parts occupying the same time domain position as the first channel have sufficient resources to place the demodulation reference signal (DMRS), which can improve the demodulation performance of the data using its DMRS and improve the transmission efficiency, and the second method has increased
  • DMRS demodulation reference signal
  • the distance between the first channel of the first device and the frequency channel occupied by the first channel of other devices can reduce the in-band radiated interference IBE generated by data or control channels sent by other devices.
  • the unit of the threshold W is the same as the unit of the above-mentioned bandwidth, which will not be repeated here.
  • the value of the threshold W may be predefined, or may be configured by the network device or other terminal devices through signaling.
  • the threshold W may be set according to the bandwidth of the control channel and the data channel.
  • the first device determines the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource, and the second frequency domain resource determined under different bandwidths is relative to the first frequency domain
  • the frequency domain positions of the resources are different, and the second frequency domain resources are a subset of the first frequency domain resources.
  • the first device can more reasonably coordinate the frequency domain resources occupied by the first channel and the data channel, so that the first channel and the data channel In different situations, it can be multiplexed in an optimal way to improve the demodulation performance of data and the efficiency of data transmission in the system, and reduce the in-band radiated IBE interference between different devices.
  • W′ there may be another threshold W′, in the case of W′ ⁇ N ⁇ W, it is determined that the second frequency domain resource satisfies manner 1, and in the case of N ⁇ W, the second frequency is determined Domain resource meets the second way, W'is a positive integer greater than or equal to M.
  • the examples in FIGS. 6 to 8 are only for describing the relationship between the frequency domain resource occupied by the first channel (second frequency domain resource) and the frequency domain resource occupied by the data channel (first frequency domain resource). , Does not limit the relationship between the first channel and the time domain resources occupied by the data channel.
  • the first channel may occupy the first few time-domain symbols, or the middle symbols, or the last symbols of the time-domain resources occupied by the data channel.
  • the specific number of symbols may be the first device according to the control information
  • the amount of data is determined, or it may be indicated by the network device or other terminal device through signaling, or may be pre-defined.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: in the case of M ⁇ N, determining the second The frequency domain starting point of the frequency domain resource coincides with the frequency domain starting point of the first data subchannel, or the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the first data subchannel, where the first data subchannel is The data sub-channel centered among the at least one data sub-channel occupied by the first frequency domain resource.
  • the centered data subchannel is a subchannel closest to the center; when the number of subchannels occupied by the first frequency domain resource is an odd number, centered The data sub-channel is the center sub-channel.
  • the centered subchannel can be represented as floor(T/2) or (floor(T/2)+1).
  • floor() means round down.
  • n-1 to n+3 are the number of data sub-channels.
  • the frequency width of one data sub-channel as described above may be the frequency width of an integer number of PRBs.
  • the second frequency domain resource It is determined according to the scale of the data subchannel. Taking FIG.
  • the data channel occupies three data sub-channels, namely n, n+1, and n+2, where the data channel does not occupy the data sub-channel numbered n+2, and the number n+1 is now
  • the data sub-channel is the data sub-channel centered in the at least one data sub-channel occupied by the first frequency domain resource, that is, the first data sub-channel, which determines the frequency domain starting point of the second frequency domain resource and the data sub-channel number n+1
  • the starting points of the frequency domains of the two are coincident, as shown in FIG. 8(a); or it is determined that the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the data sub-channel numbered n+1, as shown in FIG. 8(b).
  • the data sub-channel refers to a sub-channel divided for the data channel. Dividing sub-channels is beneficial to reduce channel fragmentation under the condition that the first device selects transmission resources, thereby improving the efficiency of the entire system.
  • the system resources can be divided into sub-channels occupying a specific number of PRBs.
  • selecting resources the first device must occupy an integer number of sub-channels. In this way, as long as the system still has resources available, the first device can always find transmission resources corresponding to sub-channels of a specific size. Further, selecting resources in units of sub-channels can reduce the overhead of control signaling.
  • the subchannel width corresponding to the data channel, the subchannel width corresponding to the control channel and the subchannel width corresponding to the feedback channel are independently configured, and their sizes may be the same or different.
  • the size of the data subchannel is larger than the size of the feedback subchannel and the control subchannel.
  • the boundary of the second frequency domain resource is located within the boundary of the first frequency domain resource, including: in the case of M ⁇ N, determining the frequency domain starting point and the second frequency domain resource The frequency domain starting point of a control subchannel (or first feedback subchannel) coincides, or the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the first control subchannel (or first feedback subchannel).
  • the first control subchannel is at least one control subchannel (or feedback subchannel) occupied by the first frequency domain resource and completely overlaps with at least one data subchannel occupied by the first frequency domain resource or One of the included control subchannels (or feedback subchannels). As shown in FIG. 9, the data channel occupies three data subchannels numbered n, n+1, and n+2, and the data channel occupies five control subchannels (or feedback subchannels) numbered n to n+4.
  • the frequency domain range of the data sub-channel numbered n completely covers the control sub-channel (or feedback sub-channel numbered n+1) ), the control subchannel (or feedback subchannel) numbered n+1 at this time is the first control subchannel (or first feedback subchannel), and the frequency domain starting point of the second frequency domain resource and the first control subchannel are determined (Or the first feedback subchannel) the frequency domain starting point coincides, or the frequency domain center of the second frequency domain resource coincides with the frequency domain center of the first control subchannel (or the first feedback subchannel).
  • the IBE interference of the data or control information sent by other devices to the control information transmitted on the second frequency domain resource can be reduced.
  • determining the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource includes: according to the bandwidth M of the first channel, the bandwidth N of the data channel, and the first A parameter to determine the second frequency domain resource.
  • the first parameter may be one parameter, and the first parameter may also include multiple parameters, which is not limited herein.
  • the first parameter includes an identification related to the transmission link, where the transmission link refers to the link between the first device and the second device.
  • the identifier related to the transmission link may be the identifier of the first device, the identifier of the second device, the joint identifier of the first device and the second device, or the temporary wireless network identifier used by the network device when scheduling the first device (radio network temporary identifier (RNTI), the RNTI used by the network device when scheduling the second device, or the HARQ process number used by the first device and the second device.
  • RNTI radio network temporary identifier
  • the first parameter may also include subcarrier spacing.
  • the subcarrier interval may be pre-defined, or may be configured by the network device through parameters related to transmission resources, or may be pre-configured in the terminal device, which is not limited in the present invention.
  • the first parameter may also include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method further includes receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information includes indication information of feedback resources.
  • the first parameter may include at least one of the following parameters: 1.
  • the geographic location information of the first device for example, the geographic location information may be the identifier of the zone to which the first device belongs or the location information of the zone 2. Scheduling information of side link resources. Specifically, the scheduling information is scheduling information of link resources between the first device and the second device; 3. Frequency domain resources occupied by the second data; 4. 2.
  • Frequency domain resources occupied by the control information 4.
  • Indication information of the feedback resource sent by the second device for example, a field in the second control information explicitly or implicitly indicates the feedback resource; 6.
  • Number of retransmissions of the second data The number of retransmissions may be indicated by the second control information.
  • the first parameter may be one of the above parameters, or the first parameter may also include at least two of the above parameters.
  • the specific description of determining the second frequency domain resource according to the first parameter, the bandwidth M of the first channel, and the bandwidth N of the data channel is described below, and will not be repeated here.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may also be implemented by the processor 201 in the network device described above.
  • Step 403 The first device sends the first channel on the second frequency domain resource.
  • the first device sends the data channel on the first frequency domain resource.
  • the first device may not send the data channel on the first frequency domain resource. Because whether to send the data channel is not determined according to the presence or absence of the first channel, but based on whether there is an upper layer data packet arriving. Whether to send control information through the first channel is determined by the current transmission requirements. For example, if there is currently feedback information to be sent, even if there is no data channel, the feedback information should also be sent out in time, otherwise the system delay will be affected.
  • the first device may send control information through the first channel alone, so that the receiver adjusts them according to the control information Receiving and sending resources. Further, if the data channel and the first channel appear in the same time slot, the best strategy is to let them transmit together. Because this can reduce the system overhead on automatic gain (Automatic Control (AGC) symbols and transmission/reception conversion symbols when the first channel is transmitted separately.
  • AGC Automatic Control
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • Step 404 the second device detects a control channel, the frequency domain resource occupied by the control channel is a third frequency domain resource, and the bandwidth of the third frequency domain resource is G frequency domain resources; the control information carried by the control channel indicates The bandwidth of the data channel.
  • the bandwidth of the data channel is N frequency domain units, where G ⁇ N, and G and N are positive integers.
  • the second frequency domain resource represents the frequency domain resource required to transmit the control channel or the frequency domain resource required to transmit the feedback channel, but
  • the second device that needs to receive the control channel and/or feedback channel in particular, for the second device that receives both the control channel and the feedback channel, it is necessary to receive the control channel first, and then receive the feedback channel based on the control channel.
  • a third frequency domain resource needs to be introduced to represent the frequency domain resource occupied by the control channel
  • a fourth frequency domain resource needs to be introduced to represent the frequency domain resource occupied by the feedback channel.
  • the frequency domain resource required by the control channel determined by the first device and the frequency domain resource occupied by the control channel detected by the second device are the same, and the description is the same Suitable for feedback channel.
  • the introduction of the bandwidth G and the bandwidth K on the second device side is also to distinguish the control channel and the feedback channel.
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • Step 405 The second device determines the first frequency domain resource according to the third frequency domain resource and the bandwidth N of the data channel. It should be understood that the first frequency domain resource is consistent with the above, and represents the frequency domain resource occupied by the data channel. After the second device knows the bandwidth and position of the third frequency domain resource, it determines the first frequency domain resource according to the frequency domain position of the third frequency domain resource relative to the first frequency domain resource. The determination of the frequency domain position of the third frequency domain resource (frequency domain resource occupied by the control channel) relative to the first frequency domain resource is consistent with the above method for determining the relative position of the first device.
  • the boundary of the third frequency domain resource within the boundary of the first frequency domain resource may include two ways.
  • Manner 1 The frequency domain starting point of the third frequency domain resource coincides with the frequency domain starting point of the first frequency domain resource, or the frequency domain end point of the third frequency domain resource coincides with the frequency domain end point of the first frequency domain resource. That is, in mode 1, the third frequency domain resource is aligned with one side of the first frequency domain resource. For example, as shown in FIG. 6, the end of the frequency domain of the control channel and the end of the frequency domain of the data channel coincide.
  • Method 2 The third frequency domain resource is located as far as possible in the middle of the first frequency resource, for example, as shown in FIG.
  • the frequency domain starting point of the third frequency domain resource is away from the frequency domain of the first frequency domain resource
  • the bandwidth of the starting point is or Means round down Indicates rounding up; or the bandwidth of the end of the frequency domain of the second frequency domain resource from the end of the frequency domain of the first frequency domain resource is or
  • the frequency domain starting point of the third frequency domain resource is two frequency domain units away from the frequency domain starting point of the first frequency domain resource, and the frequency domain end point of the third frequency domain resource is away from the first frequency
  • the frequency domain end point of the domain resource is also two frequency domain units, and the third frequency domain resource is located in the middle of the first frequency domain resource.
  • the frequency domain resource occupied by the control channel is aligned with one side of the frequency domain resource occupied by the data channel.
  • the frequency domain resource occupied by the control channel is located in the middle part of the frequency domain resource of the data channel.
  • the third frequency domain resource satisfies any one of Mode 1 and Mode 2.
  • the first device further determines the manner in which the second frequency domain resource is satisfied according to the threshold. Specifically, in the case where the bandwidth N of the first frequency domain resource is less than the threshold W, that is, the case where G ⁇ N ⁇ W, it is determined that the second frequency domain resource satisfies Mode 1, W is a positive integer, and W>M. When the bandwidth N of the first frequency domain resource is less than the threshold W, that is, N ⁇ W, it is determined that the second frequency domain resource satisfies Mode 2. It should be understood that the unit of the threshold W is the same as the unit of the above-mentioned bandwidth, which will not be repeated here.
  • the value of the threshold W may be predefined, or may also be configured by the network device or other terminal devices through signaling.
  • the first device determines the second frequency domain resource according to the bandwidth of the first channel and the first frequency domain resource, and the second frequency domain resource determined under different bandwidths is relative to the first frequency domain
  • the frequency domain positions of the resources are different, and the second frequency domain resources are a subset of the first frequency domain resources.
  • the first device can more reasonably coordinate the frequency domain resources occupied by the first channel and the data channel, so that the first channel and the data channel In different situations, it can be multiplexed in an optimal way to improve the demodulation performance of data and the efficiency of data transmission in the system, and reduce the in-band radiated IBE interference between different devices.
  • W′ there may be another threshold W′, in the case of W′ ⁇ N ⁇ W, it is determined that the second frequency domain resource satisfies manner 1, and in the case of N ⁇ W, the second frequency is determined Domain resource meets the second way, W'is a positive integer greater than or equal to M.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may be implemented by the processor 201 in the network device described above.
  • Step 406 The second device detects the data channel on the first frequency domain resource.
  • control information also indicates the bandwidth of the feedback channel
  • the bandwidth of the feedback channel is K frequency domain units
  • the method 400 may further include: according to the K and the first frequency Domain resource, determine the fourth frequency domain resource; the second device detects the feedback channel on the fourth frequency domain resource. It should be understood that determining the frequency domain position of the fourth frequency domain resource (the frequency domain resource occupied by the feedback channel) relative to the first frequency domain resource is consistent with the above method for determining the relative position of the first device, that is, determining the fourth frequency domain
  • the resource method is the same as the above method for determining the third frequency domain resource, which will not be repeated here.
  • the method 400 only limits the frequency domain resources occupied by the first channel.
  • the first device also requires time domain resource information of the first channel.
  • the time domain resource information may be predefined by the standard, or may be It is indicated by network equipment or other terminal equipment signaling, or a mixture of the above two methods.
  • the number of time domain symbols occupied by the first channel is predefined, and the time domain position of the first channel relative to the data channel It is indicated by signaling.
  • the time domain start point of the first channel and the data channel start point coincide, or the time channel end point of the first channel and the data channel end point coincide, or the first The time domain boundary of the channel is within the time domain boundary of the data channel.
  • combining the second frequency domain resource as a subset of the first frequency domain resource, the time-frequency resource occupied by the first channel is within the boundary of the time-frequency resource occupied by the data channel.
  • the time domain end point of the first channel coincides with the time domain start point of the data channel, or the time domain start point of the first channel coincides with the time domain end point of the data channel, or the first
  • the time-frequency resources occupied by the channel and the time-frequency resources occupied by the data channel do not overlap in time domain, that is to say, the first channel and the data channel are completely time-divisional at this time.
  • the first channel and the data channel have different antenna ports, or the first channel and the data channel have different MIMO modes, or the first channel and the data channel are quasi-colocation , QCL) parameters are different.
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • the method 400 further includes rate matching or puncturing the data channel on the resource where the second frequency domain resource is located.
  • the resources of the first channel are dedicated to the first channel. In this case, the data channel cannot occupy the first channel.
  • the second frequency domain resource Therefore, when performing resource mapping on the data channel, the time and frequency resources occupied by the first channel need to be removed.
  • the corresponding first device sends the data channel, it needs to bypass the second frequency domain resource.
  • the bypass method is to rate match the data carried on the data channel or puncture the data channel. In this way, the correct mapping of the data in the data channel can be ensured, and the receiver can properly demodulate and decode accordingly.
  • This operation may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • This operation may also be implemented by the transceiver 202 in the network device described above. Of course, it may also be implemented by the processor 201 in the network device described above to control the transceiver 202.
  • the method for determining communication resources can coordinate the control information with the frequency domain resources of the data scheduled by the first device, and the first device determines the second frequency domain resources according to the bandwidth of the first channel and the first frequency domain resources, In the case of different bandwidths, the determined second frequency domain resource has a different frequency domain position relative to the first frequency domain resource, and the second frequency domain resource is a subset of the first frequency domain resource, and the first device can be more reasonable Coordinate the frequency domain resources occupied by the first channel and the data channel, so that the first channel and the data channel can be multiplexed in an optimal manner under different circumstances, improve the efficiency of data transmission in the system, and reduce the in-band between different devices Radiated IBE interference.
  • Embodiments of the present application also provide another method 500 for determining communication resources.
  • the first device may determine the time domain relationship between the control channel and the data channel, or in other words, the first device may determine that the data channel and the control channel are in control.
  • the method 500 may be a part of the method 400 or the method 500 may be an independent method.
  • the method 500 may be combined with the above method 400 to determine the time-frequency resource of the control channel, or the method 500 may be combined with other methods of determining the frequency-domain resource of the control channel to determine the time-frequency resource of the control channel. That is, the method 500 only defines the time domain resources of the control channel.
  • the method 500 will be described in detail below.
  • Step 501 The first device determines a first time domain resource, and the first time domain resource is a time domain resource occupied by a data channel.
  • the time domain resource occupied by the data channel includes its starting position in the time slot, the number of symbols occupied in the time slot, and the number of occupied time slots. This information can be indicated by control information.
  • the first device in the embodiment of the present application may be a terminal device, or a network device, or may be a terminal device or an apparatus in the network device that executes the method of the embodiment of the present application.
  • the second device in the embodiment of the present application may be a terminal device, or a network device, or may be a terminal device or an apparatus in the network device that executes the method of the embodiment of the present application.
  • the second device is a receiving device, for example, when the first device sends a control channel, the second device is a device that receives the control channel; when the first device sends a feedback channel, the second device is a device that receives the feedback channel, and
  • the feedback channel carries feedback information based on data sent by the second device.
  • the second device may be more than one device, and in some cases, the second device may be a group of devices, which is not limited in this application.
  • One slot may include multiple symbols, for example, one slot in LTE includes 7 symbols.
  • a time slot in NR includes 14 symbols.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may be implemented by the processor 201 in the network device described above.
  • Step 502 The first device determines the second time domain resource according to the transmission parameter of the control channel and the transmission parameter of the data channel.
  • the second time domain resource is a time domain resource that needs to be occupied by the transmission control channel.
  • the transmission parameter may include at least one of the following parameters: antenna port number, multiple-input multiple-output MIMO transmission method, or quasi-co-location QCL indication information.
  • the MIMO transmission mode is one of the following modes: beamforming, spatial multiplexing, or transmit diversity (transmit diversity); wherein, the transmit diversity includes: space-time block code (space time block (STBC), Space frequency block code (space frequency block coding, SFBC), cyclic delay diversity (Cyclic Delay Diversity, CDD).
  • determining the second time domain resource according to the transmission parameter of the control channel and the transmission parameter of the data channel includes: in a case where the transmission parameter of the control channel is the same as the transmission parameter of the data channel, The time domain starting point of the control channel coincides with the time domain starting point of the data channel, or the time domain end point of the control channel coincides with the time domain end point of the data channel, or the time domain boundary of the control channel is at In the time domain boundary of the data channel, the time domain resource occupied by the control channel is located within the boundary of the time domain resource occupied by the data channel.
  • the control channel and the data channel are frequency-division multiplexed.
  • the transmission parameter of the control channel is different from the transmission parameter of the data channel
  • the time domain end point of the control channel coincides with the time domain start point of the data channel, or the time domain start point of the control channel and
  • the time domain end points of the data channels coincide, or the time-frequency resources occupied by the control channel and the time-frequency resources occupied by the data channel do not overlap in time domain, that is to say, the control channel and the data channel are completely time-divided at this time.
  • the control channel and the data channel are transmitted using the same antenna port, MIMO transmission method, or QCL indication information.
  • the time domain symbol occupied by the first device on the control channel Data can still be transmitted on other frequency domain resources except the frequency domain resources occupied by the control information, thereby reducing waste of system resources. The reason is that it is difficult for a device, especially a terminal device, to simultaneously transmit two signals with different MIMO modes or different beam directions on a slot symbol at the same time.
  • the QCL indication information can generally be used to describe whether the MIMO mode or beam direction is the same.
  • the transmission parameters of the control channel and the transmission parameters of the data channel are different, for example, the antenna port, the MIMO transmission method, or the QCL indication information is different.
  • the transmission method of the control channel may be omnidirectional or a wider transmission range, and the transmission method of the data channel may be a narrowband directed to a specific user.
  • the control channel and the data channel need to pass different
  • the antenna transmits, so the antenna port, MIMO transmission method, or QCL information of the control channel and the data channel are different. The reason is that it is difficult for a device, especially a terminal device, to simultaneously transmit two signals with different MIMO modes or different beam directions on a slot symbol at the same time.
  • At least two copies of the control information are carried in the control channel, for example, at least two copies of the control information are located in the time domain resource (second time domain resource) occupied by the control channel with the same content and time-frequency size )on.
  • Sending duplicate control information can improve the coverage of control information.
  • the first device may increase the transmission power on each RE in the control channel by N/M times relative to the transmission power on each resource element (RE) in the data channel , Where N is the bandwidth of the data channel and M is the bandwidth of the control channel.
  • the transmission parameters of the control channel and the transmission parameters of the data channel are notified through signaling, or are determined by the first device according to unicast, multicast, or broadcast-related indication information, or are predefined.
  • the method 500 further includes rate matching or puncturing the data carried by the data channel according to the second time domain resource.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may be implemented by the processor 201 in the network device described above.
  • Step 503 Send control information on the second time domain resource. It should be understood that the method 500 only defines the time domain resources of the control channel.
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • the first device can determine the time-domain relationship between the data channel and the control channel according to the transmission parameters, and determine different time-domain multiplexing modes under different transmission conditions, which is more reasonable on the basis of ensuring transmission efficiency. Use time domain resources.
  • An embodiment of the present application further provides another method 600 for determining a communication resource.
  • the first device may determine the frequency domain resource occupied by the first channel according to the first parameter.
  • the method 600 provided by the embodiment of the present application is described in detail below.
  • Step 601 The first device obtains the first parameter. It should be understood that the description of the first device is as described above and will not be repeated here.
  • the first parameter may be one parameter or multiple parameters, which is not limited here.
  • the first device in the embodiment of the present application may be a terminal device, a network device, or an apparatus in a terminal device or a network device that executes the method of the embodiment of the present application.
  • the second device in the embodiment of the present application may be a terminal device, or a network device, or may be a terminal device or an apparatus in the network device that executes the method of the embodiment of the present application.
  • the second device may be a receiving device.
  • the first device sends a control channel the second device is a device that receives the control channel
  • the first device sends a feedback channel the second device is a device that receives the feedback channel.
  • the feedback channel carries feedback information based on data sent by the second device.
  • the second device may be more than one device, and in some cases, the second device may be a group of devices, which is not limited in this application.
  • the first parameter includes an identification related to the transmission link, where the transmission link refers to the link between the first device and the second device.
  • the identifier related to the transmission link may be the identifier of the first device, the identifier of the second device, the joint identifier of the first device and the second device, or the temporary wireless network identifier used by the network device when scheduling the first device (radio network temporary identifier (RNTI), the RNTI used when the network device schedules the second device, or the hybrid automatic repeat request (HARQ) process number used by the first device and the second device.
  • RNTI radio network temporary identifier
  • HARQ hybrid automatic repeat request
  • the RNTI used by the network device when scheduling the terminal device may be a specific RNTI of the terminal device, or an RNTI of the terminal device communication group or communication pair, for example, when the terminal device performs unicast, the terminal device pair (pair) specific RNTI, when the terminal device performs multicast, it may be a specific RNTI of the terminal device group (group).
  • the first device may obtain the RNTI-related identifier from the configuration information sent by the network device or the control information sent.
  • the identification related to the first device may be determined by the first device since it may be configured by the network device.
  • the identification related to the second device may be obtained by the first device from information interaction with the second device.
  • the second device may send the identification related to the second device to the first device in the physical layer control information.
  • the HARQ process numbers used by the first device and the second device may be obtained by the first device or the second device from the information configured by the base station, or in some cases, the corresponding HARQ process may be associated with a specific time slot No., at this time, the first device may determine itself according to the time domain position of the transmission resource.
  • the joint identification of the first device and the second device may be configured by the network device, or may be determined by the first device according to the identification of the first device and the acquired identification of the second device in a certain manner. For example, 4 bits can be taken from the identifier of the first device, and 4 bits can be taken from the second device to synthesize a joint identifier of 8 bits in length.
  • the first parameter may also include subcarrier spacing.
  • the subcarrier interval may be pre-defined, or may be configured by the network device through parameters related to transmission resources, or may be pre-configured in the terminal device, which is not limited in the present invention.
  • the first parameter may include a transmission method by which the first device sends the first data, and the transmission method may be unicast, multicast, or broadcast.
  • the first data is data carried by a data channel that is sent at the same physical layer as the first channel.
  • the first parameter may include the bandwidth N of the first frequency domain resource, and/or the frequency domain position of the first frequency domain resource.
  • the first frequency domain resource is the frequency domain resource occupied by the first data channel
  • the first data channel is a data channel that belongs to the same physical layer as the first channel
  • the first device acquires the first frequency domain resource as described above , No more details here.
  • the feedback channel carries feedback information for the second data sent by the second device
  • the method further includes receiving second control information and second data from the second device, the second control information indicating Frequency domain resources occupied by the second data.
  • the second control information further includes indication information of the feedback resource.
  • the first parameter may include any one or more of the following parameters 1 to 6:
  • the geographic location information of the first device may be the location coordinates obtained by the first device from the Global Positioning System (Global Positioning System, GPS), or it may be the zone obtained based on the GPS coordinates , Or indirectly express the location information of GPS coordinates.
  • the first parameter includes the parameter 1 here, it is equivalent to that the frequency domain resource for transmitting the first channel can be uniquely determined according to the location information of the first device, so that terminal devices in different locations have different first channels
  • the transmission resources of the system make the transmission resources of different terminal devices as orthogonal as possible to reduce interference.
  • Scheduling information of the side link resource is scheduling information of the link resource between the first device and the second device.
  • the scheduling information may be the network device through RRC, SIB, or DCI.
  • the scheduling information of the side link resource may be indication information directly indicating the feedback resource, or may also be information implicitly indicated by a field in certain indication information. For example: the indication field of the frequency domain resource, the indication field of the time domain resource, the indication and segmentation of the modulation and coding mode MCS, etc.
  • the network device can directly or indirectly control the transmission resources of the feedback information sent by the first device through signaling.
  • Frequency domain resources occupied by the second data is usually the second device that ensures sufficient orthogonality between the terminal devices through a corresponding mechanism. Therefore, associating the resources of the corresponding feedback information with the frequency domain resources occupied by the second data may make the determined feedback resources orthogonal to each other. Therefore, the overlap and interference between frequency domain resources occupied by the feedback information are also reduced.
  • Frequency domain resources occupied by the second control information Because the second control information can be used to schedule the second data, when scheduling the second data, the second control information and the second data are in one-to-one correspondence, so the frequency for sending feedback information is determined according to the second control information Domain resources can also reduce overlap and interference between frequency domain resources occupied by feedback information.
  • the indication information of the feedback resource sent by the second device for example, a field in the second control information explicitly or implicitly indicates the frequency domain resource used to send the feedback channel.
  • the number of retransmissions or the number of time slots may be indicated by the second control information.
  • the first device determines the frequency domain resource used to send the first channel according to the retransmission times or transmission slot numbers to correspond to different feedback information .
  • different retransmissions or transmission times correspond to different reliability of feedback information. Therefore, feedback information with different reliability is transmitted on different frequency domain resources, which can improve the efficiency of feedback information transmission.
  • the identifier related to the first device may be regarded as a parameter specific to the first device.
  • the identifier related to the second device or the receiving device may be considered as a common parameter of the second device.
  • parameters 1, 2, and 6 can be considered as parameters common to all devices.
  • parameters 3, 4, and 5 can be considered as parameters specific to the second device.
  • each parameter when the transmission between the first device and the second device is unicast transmission, each parameter is a parameter specific to the terminal device.
  • each parameter is a parameter common to the terminal device group, and the terminal device group is a communication group formed by multiple terminal devices that perform multicast communication.
  • the first parameter may be one of the above parameters, or the first parameter may also include at least two of the above parameters.
  • the first device may comprehensively determine the frequency domain resource used to transmit the first channel with reference to multiple different parameters. For example, the first device uses the parameters related to the identification to determine together with parameter 4, parameter 5, and parameter 6. For another example, the first device is determined according to parameter 3 and parameter 4 or parameter 5, that is, the position of the transmitter and the frequency domain resource of the receiver.
  • the above parameters combined with parameter 6 can achieve the dual effects of randomizing interference and determining the frequency position.
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • Step 602 The first device determines the frequency domain resource used to send the first channel according to the first parameter.
  • the first channel may be a control channel, which carries control information, or the first channel may also be a feedback channel, which carries feedback information.
  • step 602 may specifically be that the first device determines the frequency domain resource used to transmit the first channel from the first frequency domain resource set according to the first parameter, and the bandwidth of the first frequency domain resource set is L In the frequency domain, L is a positive integer.
  • the first frequency domain resource set may be a frequency domain resource set occupied by a side link resource pool, or the first resource set may be a frequency domain resource set occupied by a control resource pool dedicated to sending control information and/or Resource pool for feedback information.
  • the resource pool represents a set of resources combined by multiple PRBs or sub-channels used for side link communication in the system. It may be indicated by the network device through signaling or pre-configured.
  • the terminal device may select a resource in the resource pool for side transmission.
  • the first device determines the frequency domain resource used to transmit the first channel according to the correspondence between the first parameter and the frequency domain resource. Different values of the first parameter may correspond to different frequency domain resources, and this correspondence may be predefined.
  • the first device may calculate the frequency domain resource used to transmit the first channel according to the calculation method defined in the standard. Exemplarily, the first device may be calculated to transmit the first channel.
  • the function f(X) can be any of the following:
  • formula (1) indicates that no additional operation is performed on the first parameter, and the parameter corresponding to X is directly used to determine the frequency domain resource of the first channel through the modulo operation.
  • Formula (2) indicates that the integer Z will be scaled and then rounded down.
  • Formula (3) shows that the parameters corresponding to X are used for linear transformation with amplitude a and offset value b.
  • Formula (4) is to scale the result of formula (3) by Z.
  • Formula (5) indicates that the result of formula (4) is rounded down.
  • the first parameter when the first parameter includes at least two of the above parameters, the first parameter is set to a variable X.
  • the variable X is a vector including multiple input parameters, and the vector X includes at least two elements.
  • Y f(g(X)) mod L
  • g(X) represents a function of at least two elements in the vector X
  • f(g(X)) represents the function of the variable g(X)
  • mod represents the modulo operation
  • L is the bandwidth of the first frequency domain resource set.
  • the function f(g(X)) can be any of the following:
  • the first parameter is set as a variable
  • the value of all bits in the first parameter may be used as the variable, or the value of some bits in the first parameter may be used as the variable.
  • the operation in this step may be implemented by the modem processor 304 in the above terminal device.
  • the operation in this step may be implemented by the processor 201 in the network device described above.
  • step 603 the first device sends the first channel to the second device on the frequency domain resource determined in step 602.
  • the method 600 only defines the frequency domain resource of the first channel, and the first device also needs the time domain resource information of the first channel during the actual transmission process, and the time domain resource information may be predefined by the standard, or may It is indicated by network equipment or other terminal equipment signaling, or a mixture of the above two methods.
  • the number of time domain symbols occupied by the first channel is predefined, and the time domain position of the first channel relative to the data channel It is indicated by signaling.
  • the first device in the embodiment of the present application may be a terminal device, a network device, or an apparatus in the terminal device or the network device that executes the method of the embodiment of the present application.
  • the above description also applies to the second device.
  • the operation in this step may be implemented by the transceiver 301 in the above terminal device, and of course, it may also be implemented by the modem processor 304 in the above terminal device to control the transceiver 301.
  • the operation in this step may be implemented by the transceiver 202 in the above network device, and of course, it may also be implemented by the processor 201 in the above network device to control the transceiver 202.
  • the method 600 can be used to determine the frequency domain resource occupied by the first channel.
  • the first device also needs time domain resource information of the first channel.
  • the time domain resource information may be predefined by the standard, or may be
  • the network equipment or other terminal equipment indicates the signaling, or a mixture of the above two methods, so that it can be used to completely determine the time-frequency resources occupied by the first channel.
  • the first device determines the frequency domain resource of the first channel according to the first parameter through the above method, so that the position of the frequency domain resource of the first channel can be correspondingly obtained according to the difference of the first parameter, which reduces the number of The frequency domain resources of one channel overlap to generate interference, which improves transmission performance.
  • Examples of the present invention also provide an apparatus (eg, integrated circuit, wireless device, circuit module, etc.) for implementing the above method.
  • the device implementing the power tracker and/or power generator described herein may be a stand-alone device or may be part of a larger device.
  • the device may be (i) a self-contained IC; (ii) has one or more sets of 1C, which may include a memory IC for storing data and/or instructions; (iii) an RFIC, such as an RF receiver or RF transmitter /Receiver; (iv) ASIC, such as mobile station modem; (v) module that can be embedded in other devices; (vi) receiver, cell phone, wireless device, handset, or mobile unit; (vii) others, etc. Wait.
  • the method and apparatus provided by the embodiments of the present invention may be applied to terminal equipment or network equipment (which may be collectively referred to as wireless equipment).
  • the terminal device or network device or wireless device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present invention does not limit the specific structure of the method execution subject, as long as it can run the program that records the code of the method of the embodiment of the present invention to transmit the signal according to the embodiment of the present invention
  • the method of communication may be sufficient.
  • the execution subject of the wireless communication method in the embodiment of the present invention may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • the computer-readable medium may include, but is not limited to: magnetic storage devices (for example, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (for example, compact discs (CDs), digital universal discs (digital discs, digital discs, DVDs)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, Solid State Disk (SSD)), or the like.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, Solid State Disk (SSD)
  • the size of the sequence numbers of the above processes does not mean the order of execution order, and the execution order of each process should be determined by its function and inherent logic, and should not deal with the present invention.
  • the implementation process of the embodiments constitutes no limitation.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the function 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 solutions of the embodiments of the present invention may essentially be a part that contributes to the existing technology or a part of the technical solution may be embodied in the form of a software product, and the computer software product is stored in a storage medium Includes several instructions to enable a computer device (which may be a personal computer, a server, or an access network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present invention.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请实施例提供了一种确定通信资源的方法和装置，可以应用于车联网，例如V2X、LTE-V、V2V等，或可以用于D2D，智能驾驶，智能网联车等领域。第一设备确定第一频域资源，该第一频域资源为数据信道占用的频域资源，且该第一频域资源的频宽为N个频域单元。根据第一信道的频宽和第一频域资源，确定第二频域资源，所述第一信道的频宽为M个频域单元，其中，第二频域资源为第一频域资源的子集，M≤N，且M、N为正整数。第一设备在第二频域资源上发送第一信道。本方法和装置可以灵活地根据频率宽度确定控制信道的频域资源，保证数据传输效率的同时减少接收机之间的干扰。

Description

确定通信资源的方法和装置
本申请要求于2018年12月29日提交中国专利局、申请号为201811640506.3、申请名称为“确定通信资源的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其是涉及一种确定通信资源的方法和装置。
背景技术
设备到设备(Device to Device，D2D)通信、车与车(Vehicle to Vehicle，V2V)通信、车与行人(Vehicle to Pedestrian，V2P)通信或车与基建/网络(Vehicle to Infrastructure/Network，V2I/N)通信是终端设备(terminal device)之间直接进行通信的技术，V2V、V2P以及V2I/N统称为V2X(vehicle to everything，V2X)，即车与任何事物相通信。一般的，终端设备和终端设备之间直接通信的链路被称为侧行链路(side link，SL)。
目前第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)正在研究的V2X技术中，要求支持数据实现低时延的传输。例如，V2X要实现端到端传输时延不超过3ms的要求。要实现低时延的传输还需要考虑数据的传输效率，以及终端设备之间通信的干扰。需要一种方法能实现更合理地利用侧行链路的传输资源，提高传输效率。
发明内容
本申请的实施例提供一种确定通信资源的方法和装置，能够提高传输效率。
第一方面，本申请实施例提供了一种确定通信资源的方法，包括第一设备确定第一频域资源，所述第一频域资源为数据信道占用的频域资源，且所述第一频域资源的频宽为N个频域单元。此时第一设备已知所述第一频域资源的大小N和位置，以及第一信道的频宽，则根据第一信道的频宽和所述第一频域资源，确定第二频域资源，所述第一信道的频宽为M个频域单元，所述第二频域资源为所述第一信道占用的频域资源，其中，所述第二频域资源为所述第一频域资源的子集，所述M≤所述N，所述M、所述N为正整数。确定资源之后，第一设备在所述第二频域资源上发送所述第一信道，其中，所述第一信道可以为控制信道，或者所述第一信道可以为反馈信道。
第一方面提供的确定通信资源的方法，可以协调控制信息与其所调度的数据的频域资源，第一设备根据第一信道的频宽和第一频域资源，确定第二频域资源，在不同频宽的情况下确定的第二频域资源相对于第一频域资源的频域位置不同，且第二频域资源是第一频域资源的子集，第一设备可以更合理的协调第一信道和数据信道占用的频域资源，使得第一信道和数据信道在不同情况下都能够以最优的方式进行复用，提高系统中数据传输的效率，减少不同设备间的带内辐射IBE干扰。
在一种可能的设计中，所述根据第一信道的频宽和所述第一频域资源，确定第二频 域资源，包括：在所述M＝所述N的情况下，所述第二频域资源与所述第一频域资源相同；或者，在所述M<所述N的情况下，所述第二频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第二频域资源的频域终点与所述第一频域资源的频域终点重合。
可选的，该种可能的设计满足所述M<所述N<阈值W，其中所述阈值W>所述M，且所述W为正整数。
在一种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000001
或者
Figure PCTCN2019127250-appb-000002
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000003
或者
Figure PCTCN2019127250-appb-000004
个频域单元。
可选的，该种可能的设计满足，所述N≥所述阈值W。
在一种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点与第一数据子信道的频域起点重合，或者所述第二频域资源的频域中心与所述第一数据子信道的频域中心重合；其中所述第一数据子信道为所述第一频域资源占用的至少一个数据子信道中居中的数据子信道。
在上述可能的设计中，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
可选的，所述第一信道的时域起点和所述数据信道的时域起点重合，或者所述第一信道的时域终点和所述数据信道的时域终点重合，或者所述第一信道的时域边界在所述数据信道的时域边界内。
可选的，所述第一信道的时域终点与所述数据信道的时域起点重合，或者所述第一信道的时域起点与所述数据信道的时域终点重合。此时，所述第一信道的发射参数与所述数据信道的发射参数不同，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出MIMO传输方式或准共址QCL指示信息，其中所述MIMO传输方式为以下中的一种：波束赋形、空间复用、或发分集。
在一种可能的设计中，所述根据第一信道的频宽和所述第一频域资源，确定第二频域资源包括：根据所述第一信道的频宽M、所述第一频域资源和第一参数，确定所述第二频域资源。第一参数可以是一个参数，也可以是多个参数，本申请实施例不作限定。
在该种可能的设计中，所述第一参数包括与传输链路相关的标识，这里的传输链路指的是第一设备与第二设备之间的链路。具体的，与传输链路相关的标识可以是第一设备的标识、第二设备的标识、第一设备与第二设备的联合标识、网络设备调度第一设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、网络设备调度第二设备时使用的RNTI，或者第一设备和第二设备使用的HARQ进程号。
可选的，第一参数还可以包括子载波间隔。
可选的，第一参数还可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法还包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二 数据占用的频域资源。可选的，第二控制信息中还包括反馈资源的指示信息。这种情况下第一参数还可以包括以下参数中的至少一种：1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备所属区域(zone)的标识或zone的位置信息；2、侧行链路资源的调度信息；3、第二数据占用的频域资源；4、第二控制信息占用的频域资源；5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示反馈资源；6、第二数据的重传次数，该重传次数可以是第二控制信息指示的。
第二方面，本申请实施例提供了一种确定通信资源的方法，包括第一设备确定第一时域资源，所述第一时域资源为数据信道占用的时域资源，第一时域资源包括它在时隙内的开始位置、在时隙内占用的符号数、以及占用的时隙数量。第一设备根据控制信道的发射参数和与所述数据信道的发射参数，确定第二时域资源，之后第一设备在所述第二时域资源上发送所述控制信道。
在一种可能的设计中，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出(Multiple-Input Multiple-Output，MIMO)传输方式或准共址(quasi-colocation，QCL)指示信息
在该种可能的设计中，所述MIMO传输方式为以下参数中的一种：波束赋形、空间复用、或发分集(transmit diversity)；其中，所述发分集包括：空时分组码(space time block code，STBC)，空频分组码(space frequency block coding，SFBC)，循环延时分集(Cyclic Delay Diversity，CDD)。
在一种可能的设计中，所述根据控制信道的发射参数和与所述数据信道的发射参数，确定第二时域资源，包括：在所述控制信道的发射参数与所述数据信道的发射参数相同的情况下，所述控制信道的时域起点和所述数据信道的时域起点重合，或者所述控制信道的时域终点和所述数据信道的时域终点重合，或者所述控制信道的时域边界在所述数据信道的时域边界内；在所述控制信道的发射参数与所述数据信道的发射参数不同的情况下，所述控制信道的时域终点与所述数据信道的时域起点重合，或者所述控制信道的时域起点与所述数据信道的时域终点重合。
可选的，所述控制信道的发射参数与所述数据信道的发射参数是通过信令通知的，或者是所述第一终端设备根据单播、组播或广播相关的指示信息确定的，或者预定义的。
在一种可能的设计中，所述在所述第二时域资源上发送所述控制信道之前，所述方法还包括：根据所述第二时域资源对所述数据信道承载的数据进行速率匹配或打孔。
通过第二方面提供的方法，第一设备可以根据数据信道和控制信道的发射参数，确定两者的时域关系，在不同发射情况下分别确定不同的时域复用方式，在保证传输效率的基础上更合理的利用时域资源。
第三方面，本申请实施例提供了一种确定通信资源的方法，包括第一设备获取第一参数，其中所述第一参数包括与传输链路相关的标识和/或与传输资源相关的信息。需要理解的是，第一设备的描述如前文所述，此处不再赘述。第一参数可以是一个参数，也可以是多个参数，此处不作限定。第一设备根据所述第一参数用于发送第一信道的频域资源，如前文所述，第一信道可以是控制信道，控制信道承载控制信息，或者第一信道还可以是反馈信道，反馈信道承载反馈信息。之后第一设备在确定的频域资源上向第二设备发送第一信道。所述用于发送第一信道的频域资源为第一频域资源的子集，其中所述第二一频域资源为数据信道占用的频域资源。
在一种可能的设计中，所述与传输链路相关的标识可以是第一设备的标识、第二设备UE的标识、第一设备与第二设备UE的联合标识、网络设备调度第一设备时使用的RNTI、网络设备调度第二设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、第一设备和第二设备使用的混合自动重传请求(hybrid automatic repeat request，HARQ)进程号。
可选的，所述第一参数还可以包括子载波间隔。
可选的，第一参数还可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一参数还可以包括第一频域资源的频宽N，和/或第一频域资源的频域位置。第一频域资源为第一数据信道占用的频域资源，第一数据信道为与第一信道属于同一次物理层发送的数据信道。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法可以包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二数据占用的频域资源。可选的，第二控制信息中包括反馈资源的指示信息。这种情况下第一参数可以包括以下参数中的至少一种：1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备所属区域(zone)的标识或zone的位置信息；2、侧行链路资源的调度信息；3、第二数据占用的频域资源；4、第二控制信息占用的频域资源；5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示反馈资源；6、第二数据的重传次数，该重传次数可以是第二控制信息指示的。
需要理解的是，第一参数可以是以上参数中的一个，或者第一参数也可以包括以上参数中至少两个参数。
在一种可能的设计中，所述根据第一参数确定用于发送第一信道的频域资源，包括第一设备根据第一参数从第一频域资源集合中确定用于发送第一信道的频域资源，第一频域资源集合的频宽为L个频域单元，L为正整数。第一频域资源集合可以是侧行链路资源池占用的频域资源集合，或者第一资源集合可以是控制资源池占用的频域资源集合，控制资源池为专用于发送控制信息和/或反馈信息的资源池。
在上述可能的设计中，所述根据第一参数确定用于发送第一信道的频域资源，包括第一设备根据第一参数与频域资源的对应关系确定用于发送第一信道的频域资源。第一参数不同的值可以对应不同的频域资源，这种对应关系可以是预定义的。在一种可能的情况下第一设备获取第一参数之后，可以根据标准定义的计算方式计算得到用于发送第一信道的频域资源，示例性的，可以是计算得到用于发送第一信道的频域资源的起始频域单元的索引Y。
可选的，第一设备使用第一参数的全部比特位的取值或部分比特位的取值来确定用于发送第一信道的频域资源。
可选的，确定第一频域资源包括确定所述第一信道占用的频域资源的起始PRB索引或起始子信道索引。
通过第三方面提供的方法，第一设备根据第一参数通过上述方法来确定第一信道的频域资源，从而可以根据第一参数的不同来对应的得到不同的第一信道的频域资源的位置，减少了不同设备发送第一信道的频域资源发生重叠而产生干扰的机会，提升了传输性能。
第四方面，本申请实施例提供了一种确定通信资源的方法，第二设备检测到控制信道，所述控制信道占用第三频域资源，且所述第三频域资源的频宽为G个频域资源，所述控制信道承载的控制信息指示数据信道的频宽，所述数据信道的频宽为N个频域单元，其中所述G≤所述N，且所述G、所述N为正整数。第二设备根据所述第三频域资源和所述N，确定第一频域资源，之后在所述第一频域资源上检测所述数据信道。
通过第四方面提供的方法，第二设备可以按照与发送端，即第一设备，相同的规则根据检测到的控制信道的频域大小和位置，以及控制信息指示的数据信道的频宽N确定数据信道的频域位置。第二设备和第一设备基于相同的理解，在第一设备可以更合理的协调第一信道和数据信道占用的频域资源的前提下，正确的检测到待接收的数据信道，节省信令开销。
在一种可能的设计中，所述根据所述第三频域资源和所述N，确定第一频域资源，包括：在所述G＝所述N的情况下，所述第三频域资源与所述第一频域资源相同；在所述G<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：所述第三频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第三频域资源的频域终点与所述第一频域资源的频域终点重合。
可选的，所述G<所述N<阈值W，其中所述阈值W>所述G，且所述W为正整数。
在一种可能的设计中，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000005
或者
Figure PCTCN2019127250-appb-000006
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000007
或者
Figure PCTCN2019127250-appb-000008
个频域单元。
可选的，该种可能的设计满足，所述N≥所述W。
在一种可能的设计中，所述控制信息还指示反馈信道的频宽，所述反馈信道的频宽为K个频域单元，其中所述K≤所述N，且K为正整数；第四方面提供的方法还包括：第二设备根据所述K和所述第一频域资源，确定第四频域资源；第二设备在所述第四频域资源上检测所述反馈信道。
在一种可能的设计中，所述根据所述K和所述第一频域资源，确定第四频域资源，包括：在所述K＝所述N的情况下，所述第四频域资源与所述第一频域资源相同；在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第四频域资源的边界位于所述第一频域资源的边界内，包括：在所述K<所述N<阈值W的情况下，所述第四频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第四频域资源的频域终点与所述第一频域资源的频域终点重合；其中所述阈值W>所述M，且所述W为正整数。
在该种可能的设计中，所述在所述K<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：在所述N≥所述W的情况下，所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000009
或者
Figure PCTCN2019127250-appb-000010
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频 宽为
Figure PCTCN2019127250-appb-000011
或者
Figure PCTCN2019127250-appb-000012
个频域单元。
在上述各方面中，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
第五方面，本申请实施例提供了一种确定通信资源的装置，包括处理器和与所述处理器耦合的存储器和收发器；其中，
所述处理器用于确定第一频域资源，所述第一频域资源为数据信道占用的频域资源，且所述第一频域资源的频宽为N个频域单元。此时已知所述第一频域资源的大小N和位置，以及第一信道的频宽，则所述处理器用于根据第一信道的频宽和所述第一频域资源，确定第二频域资源，所述第一信道的频宽为M个频域单元，所述第二频域资源为所述第一信道占用的频域资源，其中，所述第二频域资源为所述第一频域资源的子集，所述M≤所述N，所述M、所述N为正整数。确定资源之后，所述收发器用于在所述第二频域资源上发送所述第一信道，其中，所述第一信道可以为控制信道，或者所述第一信道可以为反馈信道。
第五方面提供的确定通信资源的装置，可以协调控制信息与其所调度的数据的频域资源，所述装置根据第一信道的频宽和第一频域资源，确定第二频域资源，在不同频宽的情况下确定的第二频域资源相对于第一频域资源的频域位置不同，且第二频域资源是第一频域资源的子集，所述装置可以更合理的协调第一信道和数据信道占用的频域资源，使得第一信道和数据信道在不同情况下都能够以最优的方式进行复用，提高系统中数据传输的效率，减少不同设备间的带内辐射IBE干扰。
在一种可能的设计中，所述处理器用于根据第一信道的频宽和所述第一频域资源，确定第二频域资源，包括：在所述M＝所述N的情况下，所述第二频域资源与所述第一频域资源相同；或者，在所述M<所述N的情况下，所述第二频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第二频域资源的频域终点与所述第一频域资源的频域终点重合。
可选的，该种可能的设计满足所述M<所述N<阈值W，其中所述阈值W>所述M，且所述W为正整数。
在一种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000013
或者
Figure PCTCN2019127250-appb-000014
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000015
或者
Figure PCTCN2019127250-appb-000016
个频域单元。
可选的，该种可能的设计满足，所述N≥所述阈值W。
在一种可能的设计中，所述第二频域资源的边界位于所述第一频域资源的边界内，包括：所述第二频域资源的频域起点与第一数据子信道的频域起点重合，或者所述第二频域资源的频域中心与所述第一数据子信道的频域中心重合；其中所述第一数据子信道为所述第一频域资源占用的至少一个数据子信道中居中的数据子信道。
在上述可能的设计中，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
可选的，所述第一信道的时域起点和所述数据信道的时域起点重合，或者所述第一 信道的时域终点和所述数据信道的时域终点重合，或者所述第一信道的时域边界在所述数据信道的时域边界内。
可选的，所述第一信道的时域终点与所述数据信道的时域起点重合，或者所述第一信道的时域起点与所述数据信道的时域终点重合。此时，所述第一信道的发射参数与所述数据信道的发射参数不同，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出MIMO传输方式或准共址QCL指示信息，其中所述MIMO传输方式为以下中的一种：波束赋形、空间复用、或发分集。
在一种可能的设计中，所述根据第一信道的频宽和所述第一频域资源，确定第二频域资源包括：根据所述第一信道的频宽M、所述第一频域资源和第一参数，确定所述第二频域资源。第一参数可以是一个参数，也可以是多个参数，本申请实施例不作限定。
在该种可能的设计中，所述第一参数包括与传输链路相关的标识，这里的传输链路指的是第一设备与第二设备之间的链路。具体的，与传输链路相关的标识可以是第一设备的标识、第二设备的标识、第一设备与第二设备的联合标识、网络设备调度第一设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、网络设备调度第二设备时使用的RNTI，或者第一设备和第二设备使用的HARQ进程号。
可选的，第一参数还可以包括子载波间隔。
可选的，第一参数还可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法还包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二数据占用的频域资源。可选的，第二控制信息中还包括反馈资源的指示信息。这种情况下第一参数还可以包括以下参数中的至少一种：1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备所属区域(zone)的标识或zone的位置信息；2、侧行链路资源的调度信息；3、第二数据占用的频域资源；4、第二控制信息占用的频域资源；5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示反馈资源；6、第二数据的重传次数，该重传次数可以是第二控制信息指示的。
第六方面，本申请实施例提供了一种确定通信资源的装置，包括处理器和与所述处理器耦合的存储器和收发器；其中，
所述处理器用于确定第一时域资源，所述第一时域资源为数据信道占用的时域资源，第一时域资源包括它在时隙内的开始位置、在时隙内占用的符号数、以及占用的时隙数量。所述处理器用于根据控制信道的发射参数和与所述数据信道的发射参数，确定第二时域资源，之后所述收发器在所述第二时域资源上发送所述控制信道。
在一种可能的设计中，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出(Multiple-Input Multiple-Output，MIMO)传输方式或准共址(quasi-colocation，QCL)指示信息
在该种可能的设计中，所述MIMO传输方式为以下参数中的一种：波束赋形、空间复用、或发分集(transmit diversity)；其中，所述发分集包括：空时分组码(space time block code，STBC)，空频分组码(space frequency block coding，SFBC)，循环延时分集(Cyclic Delay Diversity，CDD)。
在一种可能的设计中，所述处理器用于根据控制信道的发射参数和与所述数据信道 的发射参数，确定第二时域资源，包括：在所述控制信道的发射参数与所述数据信道的发射参数相同的情况下，所述控制信道的时域起点和所述数据信道的时域起点重合，或者所述控制信道的时域终点和所述数据信道的时域终点重合，或者所述控制信道的时域边界在所述数据信道的时域边界内；在所述控制信道的发射参数与所述数据信道的发射参数不同的情况下，所述控制信道的时域终点与所述数据信道的时域起点重合，或者所述控制信道的时域起点与所述数据信道的时域终点重合。
可选的，所述控制信道的发射参数与所述数据信道的发射参数是通过信令通知的，或者是所述第一终端设备根据单播、组播或广播相关的指示信息确定的，或者预定义的。
在一种可能的设计中，所述收发器用于在所述第二时域资源上发送所述控制信道之前，所述处理器还用于控制所述收发器根据所述第二时域资源对所述数据信道承载的数据进行速率匹配或打孔。
通过第六方面提供的装置，可以根据数据信道和控制信道的发射参数，确定两者的时域关系，在不同发射情况下分别确定不同的时域复用方式，在保证传输效率的基础上更合理的利用时域资源。
第七方面，本申请实施例提供了一种确定通信资源的装置，包括处理器和与所述处理器耦合的存储器和收发器；其中，
所述处理器用于控制所述收发器获取第一参数，其中所述第一参数包括与传输链路相关的标识和/或与传输资源相关的信息。第一参数可以是一个参数，也可以是多个参数，此处不作限定。所述处理器用于根据所述第一参数确定用于发送第一信道的频域资源，如前文所述，第一信道可以是控制信道，控制信道承载控制信息，或者第一信道还可以是反馈信道，反馈信道承载反馈信息。之后所述收发器在确定的频域资源上向第二设备发送第一信道。所述用于发送第一信道的频域资源为第一频域资源的子集，其中所述第二一频域资源为数据信道占用的频域资源。
在一种可能的设计中，所述与传输链路相关的标识可以是第一设备的标识、第二设备UE的标识、第一设备与第二设备UE的联合标识、网络设备调度第一设备时使用的RNTI、网络设备调度第二设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、第一设备和第二设备使用的混合自动重传请求(hybrid automatic repeat request，HARQ)进程号。
可选的，所述第一参数还可以包括子载波间隔。
可选的，第一参数还可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一参数还可以包括第一频域资源的频宽N，和/或第一频域资源的频域位置。第一频域资源为第一数据信道占用的频域资源，第一数据信道为与第一信道属于同一次物理层发送的数据信道。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法还包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二数据占用的频域资源。可选的，第二控制信息中包括反馈资源的指示信息。这种情况下第一参数可以包括以下参数中的至少一种：1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备所属区域(zone)的标识或zone的位置信息；2、侧行链路资 源的调度信息；3、第二数据占用的频域资源；4、第二控制信息占用的频域资源；5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示反馈资源；6、第二数据的重传次数，该重传次数可以是第二控制信息指示的。
需要理解的是，第一参数可以是以上参数中的一个，或者第一参数也可以包括以上参数中至少两个参数。
在一种可能的设计中，所述处理器用于根据第一参数确定用于发送第一信道的频域资源，包括所述处理器根据第一参数从第一频域资源集合中确定用于发送第一信道的频域资源，第一频域资源集合的频宽为L个频域单元，L为正整数。第一频域资源集合可以是侧行链路资源池占用的频域资源集合，或者第一资源集合可以是控制资源池占用的频域资源集合，控制资源池为专用于发送控制信息和/或反馈信息的资源池。
在上述可能的设计中，所述处理器用于根据第一参数确定用于发送第一信道的频域资源，包括所述处理器用于根据第一参数与频域资源的对应关系确定用于发送第一信道的频域资源。第一参数不同的值可以对应不同的频域资源，这种对应关系可以是预定义的。在一种可能的情况下所述处理器用于控制所述收发器获取第一参数之后，所述处理器可以根据标准定义的计算方式计算得到用于发送第一信道的频域资源，示例性的，可以是计算得到用于发送第一信道的频域资源的起始频域单元的索引Y。
可选的，所述处理器使用第一参数的全部比特位的取值或部分比特位的取值来确定用于发送第一信道的频域资源。
可选的，确定第一频域资源包括确定所述第一信道占用的频域资源的起始PRB索引或起始子信道索引。
通过第七方面提供的装置，所述处理器根据第一参数通过上述方法来确定第一信道的频域资源，从而可以根据第一参数的不同来对应的得到不同的第一信道的频域资源的位置，减少了不同设备发送第一信道的频域资源发生重叠而产生干扰的机会，提升了传输性能。
第八方面，本申请实施例提供了一种确定通信资源的装置，包括处理器和与所述处理器耦合的存储器和收发器；其中，所述处理器用于控制所述收发器检测到控制信道，所述控制信道占用第三频域资源，且所述第三频域资源的频宽为G个频域资源，所述控制信道承载的控制信息指示数据信道的频宽，所述数据信道的频宽为N个频域单元，其中所述G≤所述N，且所述G、所述N为正整数。所述处理器用于根据所述第三频域资源和所述N，确定第一频域资源，之后所述收发器用于在所述第一频域资源上检测所述数据信道。
通过第八方面提供的装置，所述处理器可以按照与发送端，即第一设备，相同的规则根据检测到的控制信道的频域大小和位置，以及控制信息指示的数据信道的频宽N确定数据信道的频域位置。接收装置与发送装置基于相同的理解，在发送装置可以更合理的协调第一信道和数据信道占用的频域资源的前提下，所述装置可以正确的检测到待接收的数据信道，节省信令开销。
在一种可能的设计中，所述处理器用于根据所述第三频域资源和所述N，确定第一频域资源，包括：在所述G＝所述N的情况下，所述第三频域资源与所述第一频域资源相同；在所述G<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第三频域资源的边界位于所述第一频域资源的边界内， 包括：所述第三频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第三频域资源的频域终点与所述第一频域资源的频域终点重合。
可选的，所述G<所述N<阈值W，其中所述阈值W>所述G，且所述W为正整数。
在一种可能的设计中，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000017
或者
Figure PCTCN2019127250-appb-000018
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000019
或者
Figure PCTCN2019127250-appb-000020
个频域单元。
可选的，该种可能的设计满足，所述N≥所述W。
在一种可能的设计中，所述控制信息还指示反馈信道的频宽，所述反馈信道的频宽为K个频域单元，其中所述K≤所述N，且K为正整数；第八方面提供的装置中所述处理器还用于根据所述K和所述第一频域资源，确定第四频域资源；第二设备在所述第四频域资源上检测所述反馈信道。
在一种可能的设计中，所述处理器用于根据所述K和所述第一频域资源，确定第四频域资源，包括：在所述K＝所述N的情况下，所述第四频域资源与所述第一频域资源相同；在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内。
在该种可能的设计中，所述第四频域资源的边界位于所述第一频域资源的边界内，包括：在所述K<所述N<阈值W的情况下，所述第四频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第四频域资源的频域终点与所述第一频域资源的频域终点重合；其中所述阈值W>所述K，且所述W为正整数。
在该种可能的设计中，所述在所述K<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：在所述N≥所述W的情况下，所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000021
或者
Figure PCTCN2019127250-appb-000022
个频域单元；或者，所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000023
或者
Figure PCTCN2019127250-appb-000024
个频域单元。
在上述各方面中，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
在上述方面中，第一设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行上述方法的装置。
在上述方面中，第二设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行上述方法的装置。
第九方面，提供了一种通信装置，所述通信装置用于执行上述方法实际中第一设备或第二设备行为的功能。这些功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元。
第十方面，提供了一种包含指令的计算机存储介质，当其在计算机上运行时，使得计算机执行上述方法实际中第一设备或第二设备行为的功能。
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图1所示为本申请实施例应用的一种通信场景的示意图；
图2所示为本申请实施例中网络设备的一种可能的结构示意图；
图3所示为本申请实施例中终端设备的一种可能的结构示意图；
图4所示为本申请实施例提供的方法的信令示意图；
图5所示为本申请实施例中第一信道的频域位置的一种可能的示意图；
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图7所示为本申请实施例中第一信道的频域位置的一种可能的示意图；
图8所示为本申请实施例中第一信道的频域位置的一种可能的示意图；
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具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行描述。需要说明的是，在不冲突的情况下，本发明各个实施例中的技术方案或特征可以相互组合。
本发明实施例中的“一个”意味着单个个体，并不代表只能是一个特定个体，不能应用于其他个体中。例如，本发明实施例中的“一个终端设备”指的是针对某一个终端设备，并不意味着只能应用于一个特定的终端设备。本申请中，术语“系统”可以和“网络”相互替换使用。
进一步地，本发明实施例中的“A和/或B”和“A和B中至少一个”的情况下使用术语“和/或”和“至少一个”包括三种方案中的任一种，即，包括A但不包括B的方案、包括B不包括A的方案、以及两个选项A和B都包括的方案。作为另一示例，在“A、B、和/或C”和“A、B、和/或C中至少一个”的情况下，这样的短语包括六种方案中的任一种，即，包括A但不包括B和C的方案、包括B不包括A和C的方案、包括C但不包括A和B的方案，包括A和B但不包括C的方案，包括B和C但不包括A的方案，包括A和C但不包括B的方案，以及三个选项A、B和C都包括的方案。如本领域和相关领域普通技术人员所容易理解的，对于其他类似的描述，本发明实施例均可以按照上述方式理解。
为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。例如，第一终端和第二终端仅仅是为了区分不同的终端，并不对其先后顺序进行限定。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
在3GPP中提出了基于蜂窝网络的车联网(vehicle to everything，V2X)技术，通过V2X通信系统将汽车互联。V2X通信系统包括车到车(Vehicle to Vehicle，V2V)、车到人(Vehicle to Pedestrian，V2P)(包括行人、骑自行车的人、司机、或乘客)、车到基础设施(Vehicle to Infrastructure，V2I)(例如，车辆与路边装置(road side unit，RSU)的通信)和车到网络(Vehicle to Network，V2N)(例如，车辆与基站/网络的通信)的智能交通业务。除V2N车辆和网络通信使用上行链路和下行链路，其余V2V/V2I/V2P数据通信均使用侧行链路进行通信。路边装置包括两种类型：终端类型的RSU，由于部署在路边，该终端类型的RSU处于非移动状态，不需要考虑移动性。基站类型的RSU，可以给与之通信的车辆提供定时同步及资源调度。
图1给出了本申请实施例可以应用的一个通信系统的示意图，该通信系统包括网络设备101和终端设备102-104，终端设备可以分别和网络设备建立蜂窝链路进行无线通信， 蜂窝链路在通信标准中一般叫做Uu链路，指的是终端设备与网络设备之间的无线链路，例如手机或车载通信设备与基站之间的无线链路。同时终端设备之间可以通过侧行链路(sidelink，SL)进行直连通信。例如，在一种可能的场景中网络设备101可以是蜂窝网络中的基站，终端设备102、103和104可以是车载无线通信设备或手机等。在物理层，终端设备在侧行链路上的一次发送包括控制信息与所调度的数据，控制信息承载于控制信道，数据承载于数据信道，例如控制信息可以是调度指派(scheduling assignment，SA)，控制信道可以是物理侧行控制信道(physical sidelink control channel，PSCCH)，数据信道可以是物理侧行共享信道(physical sidelink shared channel，PSSCH)。如果控制信息与所调度的数据在时间上间隔太远，会增加接收机接收、检测的时延。如果控制信息与所调度的数据在时间上间隔太近，又会影响到数据的传输质量。本申请实施例提供了一种确定通信资源的方法，在低时延的传输要求下，通过协调控制信息与其所调度的数据的传输资源，来保证数据传输效率，同时减少接收机之间的干扰。需要理解的是，图1示出的场景仅仅是一种示例，不作为对本申请方案的限定。
本申请所涉及到的网络设备是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。网络设备可以为基站(Base Station，BS)，例如，宏基站，微基站，中继站或接入点等等，还可以是其它形式的设备，例如路灯、路边单元(Road Side Unit，RSU)。在采用不同的无线接入技术的系统中，具备网络设备功能的设备的名称可能会有所不同，例如，其为第五代(fifth generation，5G)网络的新空口(new radio，NR)中的网络设备或基站(gNodeB)，在长期演进(Long Term Evolution，LTE)网络中，称为演进的节点B(evolved NodeB，eNB或者eNodeB),在第三代(third generation，3G)网络中，称为节点B(Node B)等等，或者V2X通信中的路边单元(road side unit，RSU)，或者为上述网络设备或者基站内部的芯片或者片上系统(system on chip，SOC)。为方便描述，本申请中，上述为终端设备提供无线通信功能的装置统称为网络设备。
本申请所涉及的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备或者是以上设备中的单元、部件、装置、芯片或者SOC。所述终端设备可以称为无线通信设备，也可以称为移动台(mobile station,简称MS)，终端(terminal)，用户设备(user equipment，UE)等。所述终端设备可以是包括用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、调制解调器(modem)或调制解调器处理器(modem processor)、手持设备(handheld)、膝上型电脑(laptop computer)、上网本、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、蓝牙设备、机器类型通信(machine type communication,MTC)终端等。为方便描述，本申请中，简称为终端设备或UE。
终端设备可以支持用于无线通信的一种或多种无线技术，例如5G,LTE,WCDMA,CDMA,1X,时分-同步码分多址(Time Division-Synchronous Code Division Multiple Access,TS-SCDMA),GSM,802.11等等。终端设备也可以支持蜂窝链路或终端设备之间的边链路(sidelink)上的不同传输业务或不同传输模式，例如车联网(vehicle to everything，V2X)业务，设备到设备(device to device，D2D)业务等，还可以支持蜂窝链路上的不同技术特征，例如物联网(Internet of Things，IoT)，机器类通信(machine type communication，MTC)等。
多个终端设备可以执行相同或者不同的业务。例如，移动宽带业务，增强移动宽带(Enhanced Mobile Broadband，eMBB)业务，极高可靠极低时延通信(Ultra-Reliable and Low-Latency Communication，URLLC)业务等等。
网络设备的一种可能的结构示意图可以如图2所示。该网络设备能够执行本发明实施例提供的方法。其中，该网络设备可以包括：控制器或处理器201(下文以处理器201为例进行说明)以及收发器202。控制器/处理器201有时也称为调制解调器处理器(modem processor)。调制解调器处理器201可包括基带处理器(baseband processor，BBP)(未示出)，该基带处理器处理经数字化的收到信号以提取该信号中传达的信息或数据比特。如此，BBP通常按需或按期望实现在调制解调器处理器201内的一个或多个数字信号处理器(digital signal processor，DSP)中或实现为分开的集成电路(integrated circuit，IC)。
收发器202可以用于支持网络设备与终端设备之间收发信息，以及支持终端设备之间进行无线电通信。所述处理器201还可以用于执行各种终端设备与其他网络设备通信的功能。在上行链路，来自终端设备的上行链路信号经由天线接收，由收发器202进行调解，并进一步处理器201进行处理来恢复终端设备所发送的业务数据和/或信令信息。在下行链路上，业务数据和/或信令消息由终端设备进行处理，并由收发器202进行调制来产生下行链路信号，并经由天线发射给终端设备。所述网络设备还可以包括存储器203，可以用于存储该网络设备的程序代码和/或数据。收发器202可以包括独立的接收器和发送器电路，也可以是同一个电路实现收发功能。所述网络设备还可以包括通信单元204，用于支持所述网路设备201与其他网络实体进行通信。例如,用于支持所述网络设备与核心网的网络设备等进行通信。
可选的，网络设备还可以包括总线。其中，收发器202、存储器203以及通信单元204可以通过总线与处理器201连接。例如，总线可以是外设部件互连标准(Peripheral Component Interconnect，PCI)总线或扩展工业标准结构(Extended Industry Standard Architecture，EISA)总线等。所述总线可以包括地址总线、数据总线、以及控制总线等。
图3为终端设备的一种可能的结构示意图。该终端设备能够执行本发明实施例提供的方法。该终端设备可以是三个终端设备102-104中的任一个。所述终端设备包括收发器301，应用处理器(application processor)302，存储器303和调制解调器处理器(modem processor)304。
收发器301可以调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收网络设备发射的下行链路信号。收发器301可以调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。
调制解调器处理器304有时也称为控制器或处理器，可包括基带处理器(baseband processor,BBP)(未示出)，该基带处理器处理经数字化的收到信号以提取该信号中传达的信息或数据比特。BBP通常按需或按期望实现在调制解调器处理器304内的一个或多个数字中或实现为分开的集成电路(IC)。
在一个设计中，调制解调器处理器(modem processor)304可包括编码器3041，调制器3042，解码器3043，解调器3044。编码器3041用于对待发送信号进行编码。例如，编码器3041可用于接收要在上行链路上发送的业务数据和/或信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码、或交织等)。调制器3042用于对编码器3041的输出信号进行调制。例如，调制器可对编码器的输出信号(数据和/或信令)进行 符号映射和/或调制等处理，并提供输出采样。解调器3044用于对输入信号进行解调处理。例如，解调器3044处理输入采样并提供符号估计。解码器5043用于对解调后的输入信号进行解码。例如，解码器3043对解调后的输入信号解交织、和/或解码等处理，并输出解码后的信号(数据和/或信令)。编码器3041、调制器3042、解调器3044和解码器3043可以由合成的调制解调处理器304来实现。这些单元根据无线接入网采用的无线接入技术来进行处理。
调制解调器处理器304从应用处理器302接收可表示语音、数据或控制信息的数字化数据，并对这些数字化数据处理后以供传输。所属调制解调器处理器可以支持多种通信系统的多种无线通信协议中的一种或多种，例如LTE,新空口，通用移动通信系统(Universal Mobile Telecommunications System，UMTS)，高速分组接入(High Speed Packet Access，HSPA)等等。可选的，调制解调器处理器304中也可以包括一个或多个存储器。
可选的，该调制解调器处理器304和应用处理器302可以是集成在一个处理器芯片中。
存储器303用于存储用于支持所述终端设备通信的程序代码(有时也称为程序，指令，软件等)和/或数据。
需要说明的是，该存储器203或存储器303可以包括一个或多个存储单元，例如，可以是用于存储程序代码的处理器201或调制解调器处理器304或应用处理器302内部的存储单元，或者可以是与处理器201或调制解调器处理器304或应用处理器302独立的外部存储单元，或者还可以是包括处理器201或调制解调器处理器304或应用处理器302内部的存储单元以及与处理器201或调制解调器处理器304或应用处理器302独立的外部存储单元的部件。
处理器201和调制解调器处理器301可以是相同类型的处理器，也可以是不同类型的处理器。例如可以实现在中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件、其他集成电路、或者其任意组合。处理器201和调制解调器处理器301可以实现或执行结合本发明实施例公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能器件的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合或者片上系统(system-on-a-chip，SOC)等等。
图4所示为本申请一些实施例中的确定通信资源的方法400的交互示意图。需要说明的是，图4以及下文中的部分步骤可以是可选的，本发明实施例并不限定必须包含所有步骤。此外，步骤的序号也仅仅是便于描述，并不代表先后顺序。
步骤401，第一设备确定第一频域资源，第一频域资源为数据信道占用的频域资源，且第一频域资源的频宽为N个频域单元。
需要理解的是，本申请实施例中的第一设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。本申请实施例中的第二设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。第二设备可以为接收端设备，例如当第一设备发送控制信道时，第二设备为接收该控制信道的设备；当第一设备发送反馈信道时，第二设备为接收该反馈 信道的设备，且该反馈信道承载的是基于第二设备发送的数据的反馈信息。另外，第二设备可以不止是一个设备，一些情况下第二设备可以是一组设备，本申请对此不作限制。
第一设备，即发送端设备，首先确定出数据信道占用的频域资源(第一频域资源)，确定第一频域资源包括确定第一频域资源的频率宽度和频域位置，即数据信道占用的具体带宽。第一设备可以根据需要发送的数据的大小和/或网络配置的信息自行确定第一频域资源，或者第一频域资源是通过网络设备配置的。例如，在基站调度传输资源的传输模式下，如NR中的侧行链路的模式1的传输，第一设备发送数据的第一频域资源，由基站通过信令直接指示给第一设备。又如，在终端设备自选侧行链路传输资源的传输模式下，如NR中的侧行链路的模式2的传输，第一设备可以对特定的资源或资源集合进行检测和测量，从中选择出可使用的资源位置和大小。又如，在侧行链路的模式1或模式2下，还可以通过预配置的信令，使得没有接收到基站配置或处于网络外的终端设备可以从一个特定的资源或资源集(例如可以称为缺省资源或缺省资源集)中选择可使用的资源，使用免调度的方式来确定侧行链路上的传输资源。
本申请中描述的频域单元指的是频域上的调度单元，可选的频域单元可以是物理资源块(physical resource block，PRB)，或者频域单元还可以是子信道(sub-channel)，子信道的频域大小可以是多个PRB，例如一个子信道可以是4，5，6，8，9，10，12，15，16，18，20，25，30，48，50，72，96，100个PRB，具体的，子信道的频域大小可以是预定义的，或者可以是网络设备通过高层信令半静态配置的。需要理解的是，在一个通信系统中不同信道可以对应不同的子信道大小，例如数据信道对应的数据子信道为8PRB，同时控制信道对应的控制子信道为4PRB等。可选的，在侧行链路的通信中，数据信道对应的子信道大小的集合与控制信道对应的子信道大小的集合是独立配置的。例如，数据信道对应的子信道大小的集合可以配置成{4，5，6，8，9，10，12，15，16，18，20，25，30，48，50，72，96，100}个PRB,而控制信道对应的子信道大小的集合可以配置成{4，8，16}个PRB。可选的，不同的子载波间隔的传输对应不同的子信道配置。或者可选的，不同的子载波间隔的传输下子信道的大小可以不同。例如，对15kHz，30kHz，60kHz和120kHz的子载波间隔，分别具有一一对应的一种子信道的配置。又如多种子载波对应一种相同的子信道配置，如15kHz和30kHz的子载波间隔的子信道配置相同，60kHz和120kHz的子载波间隔配置不同。又例如子载波间隔越大，子信道中占用的PRB也就越多。可选的，不同的子载波间隔的条件下，控制信息的符号数可以有不同数量。例如子载波间隔越大，控制信息占用的符号数就越少。可以理解的是，本申请实施例中频宽的单位为频域单元，且上述对频域单元的描述适用于本申请中各个示例，后续相同的地方不再赘述。
可选的，第一频域资源的频宽可以是基站指示的，例如基站指示数据信道占用的频域单元的个数，例如8PRB，20PRB或48PRB等。可选的，频域单元为子信道时，终端设备根据配置的子信道的长度和指示的子信道个数可以知道第一频域资源占用的PRB个数，如子信道的大小为4个PRB时，指示2个子信道，即共占用8个PRB。可选的，第一频域资源的频宽可以是第一设备自行确定的，则第一设备需要根据共用的资源或资源集中其他设备的使用情况，和当前信道上的干扰情况等来选择一个最佳的可供自己使用的位置和资源大小。例如，当用户少或信道相对空闲，且第一设备有较大的数据包要传输时，第一设备可以尽量一次选择大一点的带宽；当用户数较多或信道相对拥塞时，第一设备可以选择小一点的带宽。选择出的资源可以是多个PRB，也可以是多个子信道。 实际占用的时候，第一设备可以把选择出的子信道占满，也可以不占满。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作可以是由上述网络设备中的处理器201实现。
步骤402，第一设备根据第一信道的频宽和所述第一频域资源，确定第二频域资源。第一信道的频宽为M个频域单元，其中，第二频域资源为第一频域资源的子集，M≤N，且M、N为正整数。
需要理解的是，本申请实施例中描述的第二频域资源为所述第一频域资源的子集是指在频域上看，第二频域资源占用的频域资源与第一频域资源占用的资源完全相同，或者第二频域资源占用的资源是第一频域资源中的一部分。第一信道可以是控制信道，控制信道和数据信道一起发送的时候，控制信道中承载的控制信息可以包括数据的资源信息，可选的控制信息还可以包括反馈信息，数据的资源信息指的是接收设备接收数据所需的信息。示例性的，在V2X系统中控制信道可以是物理侧行控制信道(physical sidelink control channel，PSCCH)，PSCCH上承载侧行控制信息(sidelink control information，SCI)，有时候也称为调度指派(scheduling assignment，SA)。SCI中包括的信息通常是用于指示接收机在接收其关联的数据时所必要的指示信息，例如：调制编码方式、数据的时域时隙或符号的指示信息、数据的频域位置和大小的信息、或是否重传的指示信息等。上述的第一信道还可以是反馈信道，反馈信道承载反馈信息，例如反馈信息可以包括用于指示接收机解调数据是否正确的混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)的应答信息，信道状态信息CSI(Channel State Information)。CSI包括信道质量的指示、多入多出(Multiple-Input Multiple-Output，MIMO)传输相关的参数的指示等。示例性的，在V2X系统中反馈信道可以是物理侧行反馈信道(physical sidelink feedback channel PSFCH)，PSFCH上承载侧行链路上的反馈信息。需要理解的是，当方法400应用于其他通信系统时，上述的控制信道和反馈信道也可以是其他具体的控制信道和反馈信道。
具体的，第一信道的频宽M可以是预定义的或第一设备根据信令确定的。例如第一信道的频宽M可以是预定义的，标准中定义了控制信道的频率宽度为M个PRB，M可以固定为4，也可以固定为6或8。当使用预定义或协议限定的方式，一旦确定下来，所有的设备都会按相同的固定的值来进行第一信道的发送或接收。
可选的，第一信道的频宽M可以是第一设备根据信令确定的。例如当第一设备在第一信道占用的符号之外不发送数据时，为了减少此时带来的对系统资源的浪费，第一信道的符号数可以更小、第一信道的带宽可以更大，如8PRB。当第一设备需要再第一信道占用的符号之外发送数据时，此时不会有系统资源的浪费的问题，第一信道的符号数可以稍多、第一信道的带宽可以更小，如4PRB。此时使用哪一种值，是根据由系统配置的其它参数来确定的,如第一设备根据第一信道与数据信道的天线端口是否相同，第一信道与数据信道的MIMO传输方式是否相同等因素来确定。
具体的，第一设备根据第一信道的频宽M和第一频域资源可以确定第二频域资源，第一频域资源包括了第一频域资源的频宽N以及第一频域资源的频域位置。第二频域资源为第一信道占用的频域资源，第一设备可以根据第一信道的频宽M和数据信道的频宽N(即第一频域资源的频宽N)确定第一信道相对于数据信道的频域位置，由于此时已知数据信道的频域位置，因此进一步地第一设备可以确定出第一信道的占用的频域资源(即第二频域资源)。
根据第一信道的频宽M和第一频域资源，确定第二频域资源，包括：在M＝N的情况下，如图5所示，第二频域资源与第一频域资源占用相同的频域位置，即第二频域资源与第一频域资源相同；或者，在M<N的情况下，第二频域资源的边界位于第一频域资源的边界内。
在一些实施例中，具体的，第二频域资源的边界位于第一频域资源的边界内可以包括两种方式。方式一、第二频域资源的频域起点与第一频域资源的频域起点重合，或者，第二频域资源的频域终点与第一频域资源的频域终点重合。即在方式一中第二频域资源与第一频域资源的一侧对齐，例如图6所示，第一信道的频域终点与数据信道的频域终点重合。方式二、第二频域资源尽量位于第一频率资源的中间部分，例如图7所示，在一种可能的情况下，第二频域资源的频域起点距离第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000025
或者
Figure PCTCN2019127250-appb-000026
Figure PCTCN2019127250-appb-000027
表示向下取整，
Figure PCTCN2019127250-appb-000028
表示向上取整；或者，第二频域资源的频域终点距离第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000029
或者
Figure PCTCN2019127250-appb-000030
例如当N为8、M为4的时候，第二频域资源的频域起点距离第一频域资源的频域起点两个频域单元，第二频域资源的频域终点距离第一频域资源的频域终点也为两个频域单元，第二频域资源位于第一频域资源的中间。在方式一中，第一信道占用的频域资源与数据信道占用的频域资源的一侧对齐，以图6所示的资源位置举例，数据信道中位于第一信道正下方且与第一信道占用相同时域位置的部分具有连续的频域资源，因此这一部分与第一信道频分复用的数据信道可以有较充裕的空间放置解调参考信号(demodulation reference signal，DMRS)，可以在第一信道和数据信道混合复用时，可以提升数据使用其DMRS的解调性能，提高传输效率。在方式二中，第一信道占用的频域资源位于数据信道频域资源的中间部分，均匀的增加了第一设备的第一信道与其他设备的第一信道占用频域之间的距离，例如第一信道为控制信道时，第一设备的控制信道占用的频域资源与其他设备的控制信道占用的频域资源之间的距离增加，可以降低其他设备发送的数据或控制信道产生带内辐射干扰(in-band emission,IBE)对第一设备发送的控制信道的干扰。
可选的，在一些实施例中，在M<N的情况下，第二频域资源满足方式一和方式二中的任意一种。
可选的，在一些实施例中，在M<N的情况下，第一设备进一步根据阈值确定第二频域资源满足的方式。具体的，在第一频域资源的频宽N小于阈值W的情况下，即M<N<W的情况下，确定第二频域资源满足方式一，W为正整数，且W>M，在这种情况下数据信道的频宽与第一信道的频宽的差值处于一个较小的范围，采用方式一可以使得数据信道中位于第一信道正下方且与第一信道占用相同时域位置的部分具有连续的频域资源，因此这一部分与第一信道频分复用的数据信道可以有较充裕的资源放置解调参考信号(demodulation reference signal，DMRS)，可以提升数据使用其DMRS的解调性能，提高传输效率。在第一频域资源的频宽N小于阈值W的情况下，即N≥W的情况下，确定第二频域资源满足方式二，在这种情况下，在这种情况下数据信道的频宽与第一信道的频宽的差值较大，采用方式二可以使得第一信道占用的频域资源位于数据信道频域资源的中间部分，此时数据信道中位于第一信道上方和下方且与第一信道占用相同时域位置的两部分均具有充足的资源放置解调参考信号(demodulation reference signal，DMRS)，可以提升数据使用其DMRS的解调性能，提高传输效率，且方式二增加了第一设备的第一信道与其他设备的第一信道占用频域之间的距离，可以降低其他设备发送的数据或控制信道产生带内辐射干扰IBE。需要理解的是，阈值W的单位与上述频宽的单位相同，此处不再赘述。阈值W的值可以是预定义的，或者还可以是网络设备或其他终端设备通 过信令配置的。阈值W可以是根据控制信道和数据信道的频宽来设定的。在这些实施例中，第一设备根据第一信道的频宽和第一频域资源，确定第二频域资源，在不同频宽的情况下确定的第二频域资源相对于第一频域资源的频域位置不同，且第二频域资源是第一频域资源的子集，第一设备可以更合理的协调第一信道和数据信道占用的频域资源，使得第一信道和数据信道在不同情况下都能够以最优的方式进行复用，提高数据的解调性能和系统中数据传输的效率，减少不同设备间的带内辐射IBE干扰。
可选的，在一些实施例中，还可以存在另一个阈值W’，W’<N<W的情况下，确定第二频域资源满足方式一，N≥W的情况下，确定第二频域资源满足方式二，W’为大于等于M的正整数。
需要理解的是，图6至图8中的示例仅仅为了描述第一信道占用的频域资源(第二频域资源)与数据信道占用的频域资源(第一频域资源)之间的关系，不对第一信道与数据信道占用的时域资源的关系造成限制。在一些情况下，第一信道可以占用数据信道占用的时域资源的前几个时域符号，或中间几个符号，或最后几个符号，具体的符号个数可以是第一设备根据控制信息的数据量确定的，或者也可以是网络设备或其他终端设备通过信令指示的，或者也可以是预定义的。
可选的，在一些实施例中，在M<N的情况下，第二频域资源的边界位于所述第一频域资源的边界内，包括：在M<N的情况下，确定第二频域资源的频域起点与第一数据子信道的频域起点重合，或者第二频域资源的频域中心与第一数据子信道的频域中心重合，其中所述第一数据子信道为第一频域资源占用的至少一个数据子信道中居中的数据子信道。可选的，当第一频域资源占用的子信道数为偶数时，居中的数据子信道为最接近中心的某一个子信道；当第一频域资源占用的子信道数为奇数时，居中的数据子信道为正中的那个子信道。例如，当有偶数T个子信道时，居中的子信道可以表示为floor(T/2)或(floor(T/2)+1)。又如，例如，当有奇数T个子信道时，居中的子信道可以表示为(floor(T/2)+1)。如T＝3时，按上面的方式计算出来的居中的子信道为2。如T＝6时，居中心的子信道为第3个或第4个子信道。上例中，floor()表示向下取整。如图8所示，n-1到n+3为数据子信道的编号，如上文描述的一个数据子信道的频率宽度可以为整数个PRB的频率宽度，在这些实施例中第二频域资源是按照数据子信道的尺度来确定的。以图8为例，数据信道占用了3个数据子信道，分别是n，n+1和n+2，其中数据信道未占满编号为n+2的数据子信道，此时编号n+1的数据子信道为第一频域资源占用的至少一个数据子信道中居中的数据子信道，即第一数据子信道，确定第二频域资源的频域起点与编号n+1的数据子信道的频域起点重合，如图8(a)所示；或者确定第二频域资源的频域中心与编号n+1的数据子信道的频域中心重合，如图8(b)所示。需要理解的是，数据子信道指的是为数据信道划分的子信道。划分子信道有利于在第一设备自选传输资源的情况下，减少信道的碎片化，从而提升整个系统的效率。例如，按系统支持的业务模型，可以把系统资源分成占用特定PRB数量的子信道，第一设备在选择资源时，必须占用整数个的子信道。这样只要系统仍有资源可以使用，第一设备总能找到特定大小的子信道对应的传输资源。进一步地，按子信道为单位来选用资源，可以减少控制信令的开销。
可选的，在一些实施例中，数据信道对应的子信道宽度、控制信道对应的子信道宽度与反馈信道对应的子信道宽度的是独立配置的，它们的大小可以相同或不同。例如，数据子信道的大小比反馈子信道的大小和控制子信道大。则在M<N的情况下，第二频域 资源的边界位于所述第一频域资源的边界内，包括：在M<N的情况下，确定第二频域资源的频域起点与第一控制子信道(或第一反馈子信道)的频域起点重合，或者第二频域资源的频域中心与第一控制子信道(或第一反馈子信道)的频域中心重合，其中所述第一控制子信道(或第一反馈子信道)为第一频域资源占用的至少一个控制子信道(或反馈子信道)中与第一频域资源占用的至少一个数据子信道完全重叠或包含的控制子信道(或反馈子信道)中的一个。如图9所示，数据信道占用编号为n，n+1和n+2的三个数据子信道，且数据信道占用编号为n至n+4的5个控制子信道(或反馈子信道)，从图中可以看出这些数据子信道和控制子信道(或反馈子信道)中，编号为n的数据子信道的频域范围完全覆盖编号为n+1的控制子信道(或反馈子信道)，此时编号为n+1的控制子信道(或反馈子信道)为第一控制子信道(或第一反馈子信道)，确定第二频域资源的频域起点与第一控制子信道(或第一反馈子信道)的频域起点重合，或者第二频域资源的频域中心与第一控制子信道(或第一反馈子信道)的频域中心重合。此时可以减少其它设备发送的数据或控制信息对第二频域资源上传输的控制信息的IBE干扰。
可选的，在一些实施例中，根据第一信道的频宽和第一频域资源，确定第二频域资源，包括：根据第一信道的频宽M、数据信道的频宽N和第一参数，确定第二频域资源。第一参数可以是一个参数，第一参数也可以包括多个参数，此处不作限定。
在一些实施例中，第一参数包括与传输链路相关的标识，这里的传输链路指的是第一设备与第二设备之间的链路。具体的，与传输链路相关的标识可以是第一设备的标识、第二设备的标识、第一设备与第二设备的联合标识、网络设备调度第一设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、网络设备调度第二设备时使用的RNTI，或者第一设备和第二设备使用的HARQ进程号。
可选的，第一参数还可以包括子载波间隔。子载波间隔可以是预定义的，也可以是网络设备通过与传输资源相关的参数配置的，还可以是预配置在终端设备中的，本发明对此不做限制。
可选的，第一参数还可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法还包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二数据占用的频域资源。可选的，第二控制信息中包括反馈资源的指示信息。这种情况下第一参数可以包括以下参数中的至少一种：1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备所属区域(zone)的标识或zone的位置信息；2、侧行链路资源的调度信息，具体的，该调度信息是第一设备和第二设备之间的链路资源的调度信息；3、第二数据占用的频域资源；4、第二控制信息占用的频域资源；5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示反馈资源；6、第二数据的重传次数，该重传次数可以是第二控制信息指示的。上述参数的详细内容可以参见下述方法600中的描述，此处不再赘述。
需要理解的是，第一参数可以是以上参数中的一个，或者第一参数也可以包括以上参数中至少两个参数。根据第一参数、第一信道的频宽M以及数据信道的频宽N确定第二频域资源的具体描述见下文，此处不再赘述。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作也可以是由上述网络设备中的处理器201实现。
步骤403，第一设备在该第二频域资源上发送该第一信道。可选的，同时第一设备在该第一频域资源上发送该数据信道。可选的，同时第一设备在该第一频域资源上可以不发送该数据信道。因为是否发送该数据信道，不是根据第一信道的存在与否确定的，而是根据是否有上层的数据包到达而确定的。而是否通过第一信道发送控制信息，是由当前的传输需求确定的。例如，如果当前有反馈信息要发送，即使没有数据信道，反馈信息也应该及时的发送出去，不然系统的时延会受到影响。又如，如果第一设备在选择或即将占用某些资源，即使在没有数据要发送的情况下，第一设备也有可能单独通过第一信道发送控制信息，以便接收机根据这些控制信息来调整它们的接收和发送资源。进一步地，如果数据信道与第一信道在同一个时隙中出现，最佳的策略是让他们一起发送。因为这样可以减少单独发送第一信道时在自动控制(automatic gain control，AGC)符号和收发转换符号上的系统开销。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
步骤404，第二设备检测到控制信道，该控制信道占用的频域资源为第三频域资源，且第三频域资源的频宽为G个频域资源；该控制信道承载的控制信息指示数据信道的频宽，该数据信道的频宽为N个频域单元，其中G≤N，且G、N为正整数。
需要理解的是，为了描述简洁在步骤401至步骤403中基于第一信道的不同含义，第二频域资源表示发送控制信道需要占用的频域资源或者发送反馈信道需要占用的频域资源，但是对于需要接收控制信道和/或反馈信道的第二设备来说，特别的，对于同时接收控制信道和反馈信道的第二设备来说需要先接收控制信道，再基于控制信道接收反馈信道，因此在描述第二设备的动作时，需要引入第三频域资源用于表示控制信道占用的频域资源，并且引入第四频域资源来表示反馈信道占用的频域资源。可以理解的是，在使用相同方法的设备的一次交互当中，第一设备确定的控制信道需要占用的频域资源与第二设备检测到的控制信道占用的频域资源是相同的，该说明同样适用于反馈信道。同样的，第二设备侧引入频宽G和频宽K也是为了区分控制信道和反馈信道。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
步骤405，第二设备根据第三频域资源和数据信道的频宽N，确定第一频域资源。需要理解的是，该第一频域资源与上文一致，表示数据信道占用的频域资源。第二设备已知第三频域资源的频宽和频域位置之后，根据第三频域资源相对于第一频域资源的频域位置，确定第一频域资源。确定第三频域资源(控制信道占用的频域资源)相对于第一频域资源的频域位置与上述第一设备确定该相对位置的方法一致。
根据第三频域资源和数据信道的频宽N，确定第一频域资源，包括：在G＝N的情况下，第三频域资源与所述第一频域资源占用相同的频域位置，即第三频域资源与第一频域资源相同；或者，在G<N的情况下，第三频域资源的边界位于第一频域资源的边界内。
在一些实施例中，具体的，第三频域资源的边界位于第一频域资源的边界内可以包 括两种方式。方式一、第三频域资源的频域起点与第一频域资源的频域起点重合，或者，第三频域资源的频域终点与第一频域资源的频域终点重合。即在方式一中第三频域资源与第一频域资源的一侧对齐，例如图6所示，控制信道的频域终点与数据信道的频域终点重合。方式二、第三频域资源尽量位于第一频率资源的中间部分，例如图7所示，在一种可能的情况下，第三频域资源的频域起点距离第一频域资源的频域起点的频宽为
Figure PCTCN2019127250-appb-000031
或者
Figure PCTCN2019127250-appb-000032
Figure PCTCN2019127250-appb-000033
表示向下取整，
Figure PCTCN2019127250-appb-000034
表示向上取整；或者，第二频域资源的频域终点距离第一频域资源的频域终点的频宽为
Figure PCTCN2019127250-appb-000035
或者
Figure PCTCN2019127250-appb-000036
例如当N为8、G为4的时候，第三频域资源的频域起点距离第一频域资源的频域起点两个频域单元，第三频域资源的频域终点距离第一频域资源的频域终点也为两个频域单元，第三频域资源位于第一频域资源的中间。在方式一中，控制信道占用的频域资源与数据信道占用的频域资源的一侧对齐。在方式二中，控制信道占用的频域资源位于数据信道频域资源的中间部分。
可选的，在一些实施例中，在G<N的情况下，第三频域资源满足方式一和方式二中的任意一种。
可选的，在一些实施例中，在G<N的情况下，第一设备进一步根据阈值确定第二频域资源满足的方式。具体的，在第一频域资源的频宽N小于阈值W的情况下，即G<N<W的情况下，确定第二频域资源满足方式一，W为正整数，且W>M。在第一频域资源的频宽N小于阈值W的情况下，即N≥W的情况下，确定第二频域资源满足方式二。需要理解的是，阈值W的单位与上述频宽的单位相同，此处不再赘述。阈值W的值可以是预定义的，或者还可以是网络设备或其他终端设备通过信令配置的。在这些实施例中，第一设备根据第一信道的频宽和第一频域资源，确定第二频域资源，在不同频宽的情况下确定的第二频域资源相对于第一频域资源的频域位置不同，且第二频域资源是第一频域资源的子集，第一设备可以更合理的协调第一信道和数据信道占用的频域资源，使得第一信道和数据信道在不同情况下都能够以最优的方式进行复用，提高数据的解调性能和系统中数据传输的效率，减少不同设备间的带内辐射IBE干扰。
可选的，在一些实施例中，还可以存在另一个阈值W’，W’<N<W的情况下，确定第二频域资源满足方式一，N≥W的情况下，确定第二频域资源满足方式二，W’为大于等于M的正整数。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作可以是由上述网络设备中的处理器201实现。
步骤406，第二设备在第一频域资源上检测数据信道。
可选的，在一些实施例中，控制信息还指示反馈信道的频宽，所述反馈信道的频宽为K个频域单元，方法400还可以包括：根据所述K和所述第一频域资源，确定第四频域资源；第二设备在第四频域资源上检测反馈信道。需要理解的是，确定第四频域资源(反馈信道占用的频域资源)相对于第一频域资源的频域位置与上述第一设备确定该相对位置的方法一致，即确定第四频域资源的方法与上述确定第三频域资源的方法相同，此处不再赘述。
需要理解的是方法400仅限定第一信道占用的频域资源，实际发送过程中第一设备还需要第一信道的时域资源信息，所述时域资源信息可以是标准预定义的，或者可以是网络设备或其他终端设备信令指示的，或者是以上两种方式的混合，例如第一信道占用的时域符号的个数是预定义的，同时第一信道相对于数据信道的时域位置是通过信令指 示的。
在一些实施例中，第一信道的时域起点和所述数据信道的时域起点重合，或者所述第一信道的时域终点和所述数据信道的时域终点重合，或者所述第一信道的时域边界在所述数据信道的时域边界内。换句话说，结合第二频域资源为第一频域资源的子集，此时第一信道占用的时频资源位于数据信道占用的时频资源的边界范围内，第一信道与数据信道既存在时间资源上的复用也存在频域资源上的复用。
在一些实施例中，所述第一信道的时域终点与所述数据信道的时域起点重合，或者所述第一信道的时域起点与所述数据信道的时域终点重合，或者第一信道占用的时频资源与数据信道占用的时频资源没有时域重叠，也就是说此时第一信道与数据信道是完全时分的。在这些实施例中，该第一信道与该数据信道的天线端口不同，或者该第一信道与该数据信道的MIMO模式不同，或者该第一信道与该数据信道的准共址(quasi-colocation，QCL)参数不同。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
可选的，在步骤403之前，方法400还包括在所述第二频域资源所在的资源上对所述数据信道进行速率匹配或打孔。当第一信道和数据信道在同一个时隙中同时发送时，因为是同一个设备发送的，所以第一信道的资源为第一信道所专用的，此时数据信道不能占用第一信道所在的第二频域资源。所以数据信道在做资源映射时，需要去掉第一信道所占用的时、频资源。相应的第一设备在发送该数据信道时，需要绕开第二频域资源，绕开的方式即是对数据信道上承载的数据进行速率匹配或对该数据信道进行打孔。这样才能保证该数据信道数据的正确映射，接收机也才能相应的做正确的解调和译码。
该操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
该操作也可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
本申请实施例提供的确定通信资源的方法，可以协调控制信息与其所调度的数据的频域资源，第一设备根据第一信道的频宽和第一频域资源，确定第二频域资源，在不同频宽的情况下确定的第二频域资源相对于第一频域资源的频域位置不同，且第二频域资源是第一频域资源的子集，第一设备可以更合理的协调第一信道和数据信道占用的频域资源，使得第一信道和数据信道在不同情况下都能够以最优的方式进行复用，提高系统中数据传输的效率，减少不同设备间的带内辐射IBE干扰。
本申请实施例还提供另一种确定通信资源的方法500，方法500中第一设备可以确定控制信道与数据信道的时域关系，或换句话说第一设备可以确定数据信道与控制信道在控制信道所在的时域符号上的时频重叠关系，需要理解的是，方法500可以是方法400中的一部分，或者方法500可以是独立的方法。换句话说，方法500可以与上述方法400结合，以确定控制信道的时频资源，或者方法500也可以与其他确定控制信道的频域资源的方法结合，以确定控制信道的时频资源。也就是说，方法500仅限定控制信道的时域资源。下面将详细描述方法500。
步骤501，第一设备确定第一时域资源，所述第一时域资源为数据信道占用的时域 资源。关于第一设备以及数据信道的描述参见上文，此处不再赘述。数据信道占用的时域资源包括它在时隙内的开始位置、在时隙内占用的符号数、以及占用的时隙数量。这些信息可以通过控制信息来指示。
本申请实施例中的第一设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。本申请实施例中的第二设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。第二设备为接收端设备，例如当第一设备发送控制信道时，第二设备为接收该控制信道的设备；当第一设备发送反馈信道时，第二设备为接收该反馈信道的设备，且该反馈信道承载的是基于第二设备发送的数据的反馈信息。另外，第二设备可以不止是一个设备，一些情况下第二设备可以是一组设备，本申请对此不作限制。
需要理解的是，本申请实施例描述的符号(symbol)和时隙(Slot)均为时域资源的粒度，一个时隙可以包括多个符号，例如LTE中一个时隙包括7个符号，在NR中一个时隙包括14个符号。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作可以是由上述网络设备中的处理器201实现。
步骤502，第一设备根据控制信道的发射参数和与数据信道的发射参数，确定第二时域资源。
需要理解的是，第二时域资源是发送控制信道需要占用的时域资源。具体的，发射参数可以包括以下参数中的至少一种：天线端口号、多入多出MIMO传输方式或准共址QCL指示信息。可选的，MIMO传输方式为以下方式中的一种：波束赋形、空间复用、或发分集(transmit diversity)；其中，发分集包括：空时分组码(space time block code，STBC)，空频分组码(space frequency block coding，SFBC)，循环延时分集(Cyclic Delay Diversity，CDD)。
在一些实施例中，根据控制信道的发射参数和与数据信道的发射参数，确定第二时域资源，包括：在所述控制信道的发射参数与所述数据信道的发射参数相同的情况下，所述控制信道的时域起点和所述数据信道的时域起点重合，或者所述控制信道的时域终点和所述数据信道的时域终点重合，或者所述控制信道的时域边界在所述数据信道的时域边界内，此时控制信道占用的时域资源位于数据信道占用的时域资源的边界范围内。换句话说，控制信道与数据信道的时间资源上存在复用，即在控制信道所在的符号上，控制信道与数据信道频分复用。在所述控制信道的发射参数与所述数据信道的发射参数不同的情况下，所述控制信道的时域终点与所述数据信道的时域起点重合，或者所述控制信道的时域起点与所述数据信道的时域终点重合，或者控制信道占用的时频资源与数据信道占用的时频资源没有时域重叠，也就是说此时控制信道与数据信道是完全时分的。
在控制信道的发射参数与数据信道的发射参数相同的情况下，控制信道和数据信道采用相同的天线端口、MIMO传输方式或QCL指示信息进行发射，第一设备在该控制信道占用的时域符号上除该控制信息占用的频域资源之外的其他频域资源上仍然可以发送数据，从而可以减少系统资源的浪费。其原因在于，对一个设备，特别是终端设备，很难同时在一个时隙符号上同时发送两种不同MIMO模式或波束方向不相同的信号。QCL指示信息通常可以用来描述MIMO模式或波束方向是否相同。
在一些情况下控制信道的发送参数与数据信道的发射参数不同，例如天线端口、MIMO传输方式或QCL指示信息不同。例如在6GHz以上的高频传输中，控制信道的发 射方式可能是全向或一个较宽的发射范围，而数据信道的发射方式可能是指向特定用户的窄带，控制信道与数据信道需要通过不同的天线进行发射，因此控制信道与数据信道的天线端口、MIMO传输方式或QCL信息不同。其原因在于，对一个设备，特别是终端设备，很难同时在一个时隙符号上同时发送两种不同MIMO模式或波束方向不相同的信号。
可选的，在一些实施例中，控制信道中承载至少两份重复的控制信息，例如至少两份控制信息以相同的内容和时频大小位于控制信道占用的时域资源(第二时域资源)上。发送重复的控制信息可以提高控制信息的覆盖。进一步的，为了保证控制信息的覆盖，相对于数据信道中每个资源粒子(resource element，RE)上的发送功率，第一设备可以将控制信道中每个RE上的发送功率提高N/M倍，其中N为数据信道的频宽，M为控制信道的频宽。
可选的，控制信道的发射参数与数据信道的发射参数是通过信令通知的，或者是第一设备根据单播、组播或广播相关的指示信息确定的，或者预定义的。
可选的，方法500还包括，根据第二时域资源对数据信道承载的数据进行速率匹配或打孔。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作可以是由上述网络设备中的处理器201实现。
步骤503，在第二时域资源上发送控制信息。需要理解的是，方法500仅限定控制信道的时域资源。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
通过方法500第一设备可以根据数据信道和控制信道的发射参数，确定两者的时域关系，在不同发射情况下分别确定不同的时域复用方式，在保证传输效率的基础上更合理的利用时域资源。
本申请实施例还提供又一种确定通信资源的方法600，方法600中第一设备可以根据第一参数确定第一信道占用的频域资源。下面详细描述本申请实施例提供的方法600。
步骤601，第一设备获取第一参数。需要理解的是，第一设备的描述如前文所述，此处不再赘述。第一参数可以是一个参数，也可以是多个参数，此处不作限定。
需要理解的是，本申请实施例中的第一设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。本申请实施例中的第二设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。第二设备可以为接收端设备，例如当第一设备发送控制信道时，第二设备为接收该控制信道的设备；当第一设备发送反馈信道时，第二设备为接收该反馈信道的设备，且该反馈信道承载的是基于第二设备发送的数据的反馈信息。另外，第二设备可以不止是一个设备，一些情况下第二设备可以是一组设备，本申请对此不作限制。
在一些实施例中，第一参数包括与传输链路相关的标识，这里的传输链路指的是第一设备与第二设备之间的链路。具体的，与传输链路相关的标识可以是第一设备的标识、第二设备的标识、第一设备与第二设备的联合标识、网络设备调度第一设备时使用的无线网络临时标识(radio network temporary identifier，RNTI)、网络设备调度第二设备时 使用的RNTI，或者第一设备和第二设备使用的混合自动重传请求(hybrid automatic repeat request，HARQ)进程号。需要理解的是，网络设备调度终端设备时使用的RNTI可以是终端设备特定的RNTI，也可以是终端设备通信组或者通信对的RNTI，例如，在终端设备进行单播的时候可以是终端设备对(pair)特定的RNTI，在终端设备进行组播的时候可以是终端设备组(group)特定的RNTI。其中，第一设备可以从网络设备发送的配置信息或者发送的控制信息中获取RNTI相关的标识。与第一设备相关的标识可以是第一设备自从确定的，或者也可以是网络设备配置的。与第二设备相关的标识可以是第一设备从与第二设备之间的信息交互中获取。可选地，第二设备可以在物理层控制信息中把第二设备相关的标识发送给第一设备。可选地，第一设备和第二设备使用的HARQ进程号可以是第一设备或第二设备从基站配置的信息中获取的，或者在一些情况下特定的时隙上会关联相应的HARQ进程号，这时第一设备可以根据传输资源的时域位置自行确定的。第一设备与第二设备的联合标识可以是网络设备配置的，也可以是第一设备按一定方式根据第一设备的标识和获取到的第二设备的标识确定的。例如，可以从第一设备的标识中取出4比特，从第二设备中取出4比特，合成一个长为8比特的联合标识。
可选的，第一参数还可以包括子载波间隔。子载波间隔可以是预定义的，也可以是网络设备通过与传输资源相关的参数配置的，还可以是预配置在终端设备中的，本发明对此不做限制。
可选的，第一参数可以包括第一设备发送第一数据的传输方式，传输方式可以是单播、组播或者广播。需要理解的是，第一数据为与第一信道属于同一次物理层发送的数据信道承载的数据。
可选的，第一参数可以包括第一频域资源的频宽N，和/或第一频域资源的频域位置。第一频域资源为第一数据信道占用的频域资源，第一数据信道为与第一信道属于同一次物理层发送的数据信道，第一设备获取第一频域资源的方式如上文所述，此处不再赘述。
可选的，第一信道为反馈信道时，反馈信道承载针对第二设备发送的第二数据的反馈信息，方法还包括从第二设备接收第二控制信息和第二数据，第二控制信息指示第二数据占用的频域资源。可选的，第二控制信息中还包括反馈资源的指示信息。这种情况下第一参数可以包括以下参数1至参数6中的任意一种或多种：
1、第一设备的地理位置信息，例如所述地理位置信息可以是第一设备从全球定位系统(Global Positioning System，GPS)获取的位置坐标，还可以是基于GPS坐标得到的所属区域(zone)的标识，或者间接表达GPS坐标的位置信息。当第一参数包括此处参数1时，相当于可以根据第一设备的位置信息来唯一地确定用于发送第一信道的频域资源，从而使得不同的位置的终端设备有不同的第一信道的传输资源，尽可能地使不同终端设备的传输资源正交，减少了干扰。
2、侧行链路资源的调度信息，具体的，该调度信息是第一设备和第二设备之间的链路资源的调度信息，例如，该调度信息可以是网络设备通过RRC，SIB或DCI消息发送的用于或触发侧行链路传输的资源的调度信息。可选地，侧行链路资源的调度信息可以是直接指示反馈资源的指示信息，也可以通过某个指示信息中的字段隐式地指示的信息。例如：频域资源的指示字段、时域资源的指示字段、调制编码方式MCS的指示定段等。通过此处参数2的调度信息，则网络设备可以通过信令直接或间接的控制第一设备通过发送的反馈信息的传输资源。
3、第二数据占用的频域资源。第二数据占用的频域资源，通常是第二设备通过相应 的机制保证了各个终端设备之间足够的正交性的。因此由第二数据占用的频域资源来关联对应的反馈信息的资源，可以使得确定的反馈资源之间是相互正交的。从而也减少了反馈信息占用的频域资源之间的重叠和干扰。
4、第二控制信息占用的频域资源。因为第二控制信息是可以用来调度第二数据的，在调度第二数据时，第二控制信息与第二数据是一一对应的，所以根据第二控制信息确定用于发送反馈信息的频域资源也可以减少了反馈信息占用的频域资源之间的重叠和干扰。
5、第二设备发送的反馈资源的指示信息，例如第二控制信息中的一个字段显示地或隐式地指示用于发送反馈信道的频域资源。第二控制信息中的一个字段显示地或隐式地指示用于发送反馈信道的频域资源，例如：频域资源的指示字段、时域资源的指示字段、调制编码方式MCS的指示定段等。
6、第二数据的重传次数或第二数据传输时占用的时隙数，该重传次数或时隙数可以是第二控制信息指示的。当第二数据的数据包有不同的重传次数或传输时隙数时，第一设备根据重传次数或传输时隙数确定用于发送第一信道的频域资源使其对应到不同反馈信息。而通常不同的重传或传输次数对应不同的反馈信息的可靠性，因此具有不同可靠性的反馈信息在不同的频域资源上传输，可以提升反馈信息传输的效率。
可选的，第一设备相关的标识可以认为是第一设备特定的参数。可选的，第二设备或接收设备相关的标识，可以认为是第二设备公共的参数。可选的，参数1、2、6可以认为是对所有设备公共的参数。可选的，参数3、4、5可以认为是第二设备特定的参数。可选的，当第一设备与第二设备之间的传输为单播传输时，各个参数为终端设备特定的参数。可选的，当第一设备与第二设备之间的传输为组播传输时，各个参数为终端设备组公共的参数，终端设备组为进行组播通信的多个终端设备构成的通信组。
需要理解的是，第一参数可以是以上参数中的一个，或者第一参数也可以包括以上参数中至少两个参数。当根据多个参数确定频域资源时，第一设备可以参考多个不同的参数综合地确定用于发送第一信道的频域资源。例如第一设备同时使用标识相关的参数与参数4，参数5，参数6一起确定。又如，第一设备根据参数3和参数4或参数5，即联合起用发射机的位置和接收机的频域资源的位置来确定。
再如，上述的各参数与参数6结合，可以达到随机化干扰和确定频率位置的双重效果。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
步骤602，第一设备根据第一参数确定用于发送第一信道的频域资源。如前文所述，第一信道可以是控制信道，控制信道承载控制信息，或者第一信道还可以是反馈信道，反馈信道承载反馈信息。
在一些实施例中，步骤602具体可以为第一设备根据第一参数从第一频域资源集合中确定用于发送第一信道的频域资源，第一频域资源集合的频宽为L个频域单元，L为正整数。第一频域资源集合可以是侧行链路资源池占用的频域资源集合，或者第一资源集合可以是控制资源池占用的频域资源集合，控制资源池为专用于发送控制信息和/或反馈信息的资源池。需要理解的是，资源池表示系统中多个用于侧行链路通信的PRB或子 信道所组合的资源集合。可以是网络设备通过信令指示的或着是预配置的。在资源池定义的用于发送或接收一种或多种信息的资源集合中，终端设备可以在资源池中选择资源进行侧行传输。
在一些实施例中，具体的，第一设备根据第一参数与频域资源的对应关系确定用于发送第一信道的频域资源。第一参数不同的值可以对应不同的频域资源，这种对应关系可以是预定义的。在一种可能的情况下第一设备获取第一参数之后，可以根据标准定义的计算方式计算得到用于发送第一信道的频域资源，示例性的，可以是计算得到用于发送第一信道的频域资源的起始频域单元的索引Y。
示例性的，当第一参数为以上参数中的一个时，将第一参数设置为变量X，Y可以根据以下公式计算得到：Y＝f(X)mod L，f(X)表示变量X的函数，mod表示取模操作，L为第一频域资源集合的频宽。可选的，函数f(X)可以是以下中的任意一种：
f(X)＝X；               (1)
f(X)＝floor(X/Z)           (2)
f(X)＝a*X+b；          (3)
f(X)＝(a*X+b)/Z；         (4)
f(X)＝floor((a*X+b)/Z)；       (5)
其中a,b为实数，Z为非零整数，floor()表示为向下取整操作。需要理解的是，本申请实施例中的
Figure PCTCN2019127250-appb-000037
与floor()表示相同的计算操作，
Figure PCTCN2019127250-appb-000038
与round()表示相同的计算操作。
需要理解的是上面的计算方式中，公式(1)表示不对第一参数做其它的额外操作，直接用X对应的参数来通过取模操作确定第一信道的频域资源。公式(2)表示在按整数Z进行缩放后再来做向下取整操作。公式(3)表示用X对应的参数来做幅度为a，偏移值为b的线性变换。公式(4)是对公式(3)的结果再做幅度为Z的缩放。公式(5)表示对公式(4)的结果做向下取整操作。
示例性，当第一参数包括以上参数中至少两个参数时，将第一参数设置为变量X，此时变量X为包括多个输入参数的矢量，矢量X包括至少两个元素，Y可以根据以下公式计算得到：Y＝f(g(X))mod L，g(X)表示矢量X中的至少两个元素的函数，将函数g(X)设置为变量，Y可以根据以下公式计算得到：Y＝f(g(X))mod L，f(g(X))表示变量g(X)的函数，mod表示取模操作，L为第一频域资源集合的频宽。可选的，函数f(g(X))可以是以下中的任意一种：
f(g(X))＝g(X)；            (6)
f(g(X))＝floor(g(X)/Z)；           (7)
f(g(X))＝a*g(X)+b；           (8)
f(g(X))＝(a*g(X)+b)/Z；           (9)
f(g(X))＝floor((a*g(X)+b)/Z)；           (10)
其中a,b为实数，Z为非零整数，floor()表示为向下取整操作。上述公式(6)-(10)仅在于使用g(x)代替了x，其他的计算方式的含义与上公式(1)至公式(5)相同。此处不再重复。
需要理解的是，将第一参数设置为变量时，可以使用第一参数中的全部比特位的取值作为变量，或者可以使用第一参数中的部分比特位的取值作为变量。例如，第一参数为与传输链路相关的标识，假设标识的全部比特取值为40，计算时，可以直接使用X＝40。计算得到的反馈信道的起始频域单元为40mod L，如L＝25，则对应的起始频域单元为 编号为15的PRB。当使用标识中的部分比特时，如标识的全部比特取值为57时，对应的二进制为111001，可以取这个二进行制中的其中的部分值或比特位。如取低4位，即为1001＝9；如高4位，则为1110＝14。还可以取其他的比特位，这里不做限定。
本步骤的操作可以是由上述终端设备中的调制解调器处理器304实现。
本步骤的操作可以是由上述网络设备中的处理器201实现。
步骤603，第一设备在步骤602确定的频域资源上向第二设备发送第一信道。
需要理解的是，方法600仅限定第一信道的频域资源，实际发送过程中第一设备还需要第一信道的时域资源信息，所述时域资源信息可以是标准预定义的，或者可以是网络设备或其他终端设备信令指示的，或者是以上两种方式的混合，例如第一信道占用的时域符号的个数是预定义的，同时第一信道相对于数据信道的时域位置是通过信令指示的。
需要说明的是，本申请实施例中的第一设备可以是终端设备，也可以是网络设备，也可以是终端设备或网络设备中执行本申请实施例方法的装置。上述说明同样适用于第二设备。
本步骤的操作可以是由上述终端设备中的收发器301来实现，当然，也可以是上述终端设备中的调制解调器处理器304来控制收发器301实现。
本步骤的操作可以是由上述网络设备中的收发器202来实现，当然，也可以是上述网络设备中的处理器201来控制收发器202实现。
通过方法600可以用来确定第一信道占用的频域资源，实际发送过程中第一设备还需要第一信道的时域资源信息，所述时域资源信息可以是标准预定义的，或者可以是网络设备或其他终端设备信令指示的，或者是以上两种方式的混合，从而可以用来完整地确定第一信道占用的时频资源。第一设备根据第一参数通过上述方法来确定第一信道的频域资源，从而可以根据第一参数的不同来对应的得到不同的第一信道的频域资源的位置，减少了不同设备发送第一信道的频域资源发生重叠而产生干扰的机会，提升了传输性能。
本发明示例还提供一种装置(例如，集成电路、无线设备、电路模块等)用于实现上述方法。实现本文描述的功率跟踪器和/或供电发生器的装置可以是自立设备或者可以是较大设备的一部分。设备可以是(i)自立的IC；(ii)具有一个或多个1C的集合，其可包括用于存储数据和/或指令的存储器IC；(iii)RFIC，诸如RF接收机或RF发射机/接收机；(iv)ASIC，诸如移动站调制解调器；(v)可嵌入在其他设备内的模块；(vi)接收机、蜂窝电话、无线设备、手持机、或者移动单元；(vii)其他等等。
本发明实施例提供的方法和装置，可以应用于终端设备或网络设备(可以统称为无线设备)。该终端设备或网络设备或无线设备可以包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、以及即时通信软件等应用。并且，在本发明实施例中，本发明实施例并不限定方法的执行主体的具体结构，只要能够通过运行记录有本发明实施例的方法的代码的程序，以根据本发明实施例的传输信号的方法进行通信即可，例如，本发明实施例的无线通信的方法的 执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
此外，本发明实施例的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
应理解，在本发明实施例的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个 网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者接入网设备等)执行本发明实施例各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。

Claims (42)

  1. 一种确定通信资源的方法，应用于第一设备，其特征在于，包括：
    确定第一频域资源，所述第一频域资源为数据信道占用的频域资源，且所述第一频域资源的频宽为N个频域单元；
    根据第一信道的频宽和所述第一频域资源，确定第二频域资源，所述第一信道的频宽为M个频域单元，所述第二频域资源为所述第一信道占用的频域资源，其中，所述第二频域资源为所述第一频域资源的子集，所述M≤所述N，所述M、所述N为正整数；
    在所述第二频域资源上发送所述第一信道；
    其中，所述第一信道为控制信道；或者，所述第一信道为反馈信道。
  2. 根据权利要求1所述的方法，其特征在于，所述根据第一信道的频宽和所述第一频域资源，确定第二频域资源，包括：
    在所述M＝所述N的情况下，所述第二频域资源与所述第一频域资源相同；或者，
    在所述M<所述N的情况下，所述第二频域资源的边界位于所述第一频域资源的边界内。
  3. 根据权利要求2所述的方法，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第二频域资源的频域终点与所述第一频域资源的频域终点重合。
  4. 根据权利要求3所述的方法，其特征在于，所述M<所述N<阈值W，其中所述阈值W>所述M，且所述W为正整数。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100001
    或者
    Figure PCTCN2019127250-appb-100002
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100003
    或者
    Figure PCTCN2019127250-appb-100004
    个频域单元。
  6. 根据权利要求5所述的方法，其特征在于，所述N≥所述阈值W。
  7. 根据权利要求2-4任一项所述的方法，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点与第一数据子信道的频域起点重合，或者所述第二频域资源的频域中心与所述第一数据子信道的频域中心重合；
    其中所述第一数据子信道为所述第一频域资源占用的至少一个数据子信道中居中的数据子信道。
  8. 根据权利要求2-7所述的方法，其特征在于，所述第一信道的时域终点与所述数据信道的时域起点重合，或者所述第一信道的时域起点与所述数据信道的时域终点重合。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信道的发射参数与所述数 据信道的发射参数不同，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出MIMO传输方式或准共址QCL指示信息，其中所述MIMO传输方式为以下中的一种：波束赋形、空间复用、或发分集。
  10. 一种确定通信资源的方法，应用于第二设备，其特征在于，包括：
    检测到控制信道，所述控制信道占用第三频域资源，且所述第三频域资源的频宽为G个频域资源，所述控制信道承载的控制信息指示数据信道的频宽，所述数据信道的频宽为N个频域单元，其中所述G≤所述N，且所述G、所述N为正整数；
    根据所述第三频域资源和所述N，确定第一频域资源；
    在所述第一频域资源上检测所述数据信道。
  11. 根据权利要求10所述的方法，其特征在于，所述根据所述第三频域资源和所述N，确定第一频域资源，包括：
    在所述G＝所述N的情况下，所述第三频域资源与所述第一频域资源相同；
    在所述G<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内。
  12. 根据权利要求11所述的方法，其特征在于，所述所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第三频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第三频域资源的频域终点与所述第一频域资源的频域终点重合。
  13. 根据权利要求12所述的方法，其特征在于，所述G<所述N<阈值W，其中所述阈值W>所述G，且所述W为正整数。
  14. 根据权利要求11-13任一项所述的方法，其特征在于，所述所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100005
    或者
    Figure PCTCN2019127250-appb-100006
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100007
    或者
    Figure PCTCN2019127250-appb-100008
    个频域单元。
  15. 根据权利要求14所述的方法，其特征在于，所述N≥所述W。
  16. 根据权利要求10-15任一项所述的方法，其特征在于，所述控制信息还指示反馈信道的频宽，所述反馈信道的频宽为K个频域单元，其中所述K≤所述N，且K为正整数；所述方法还包括：
    根据所述K和所述第一频域资源，确定第四频域资源；
    在所述第四频域资源上检测所述反馈信道。
  17. 根据权利要求16所述的方法，其特征在于，所述根据所述K和所述第一频域资源，确定第四频域资源，包括：
    在所述K＝所述N的情况下，所述第四频域资源与所述第一频域资源相同；
    在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内。
  18. 根据权利要求17所述的方法，其特征在于，所述在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内，包括：
    在所述K<所述N<阈值W的情况下，所述第四频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第四频域资源的频域终点与所述第一频域资源的频域终点重合；其中所述阈值W>所述K，且所述W为正整数。
  19. 根据权利要求17-18任一项所述的方法，其特征在于，所述在所述K<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
    在所述N≥所述W的情况下，所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100009
    或者
    Figure PCTCN2019127250-appb-100010
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100011
    或者
    Figure PCTCN2019127250-appb-100012
    个频域单元。
  20. 根据权利要求1-19任一项所述的方法，其特征在于，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
  21. 一种确定通信资源的装置，其特征在于，包括处理器、存储器和收发器；其中，
    所述处理器用于确定第一频域资源，所述第一频域资源为数据信道占用的频域资源，且所述第一频域资源的频宽为N个频域单元；
    所述处理器用于根据第一信道的频宽和所述第一频域资源，确定第二频域资源，所述第一信道的频宽为M个频域单元，所述第二频域资源为所述第一信道占用的频域资源，其中，所述第二频域资源为所述第一频域资源的子集，所述M≤所述N，所述M、所述N为正整数；
    所述收发器用于在所述第二频域资源上发送所述第一信道；
    其中，所述第一信道为控制信道；或者，所述第一信道为反馈信道。
  22. 根据权利要求21所述的装置，其特征在于，所述处理器用于根据第一信道的频宽和所述第一频域资源，确定第二频域资源，包括：
    在所述M＝所述N的情况下，所述第二频域资源与所述第一频域资源相同；或者，
    在所述M<所述N的情况下，所述第二频域资源的边界位于所述第一频域资源的边界内。
  23. 根据权利要求22所述的装置，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第二频域资源的频域终点与所述第一频域资源的频域终点重合。
  24. 根据权利要求23所述的装置，其特征在于，所述M<所述N<阈值W，其中所述阈值W>所述M，且所述W为正整数。
  25. 根据权利要求22-24任一项所述的装置，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100013
    或者
    Figure PCTCN2019127250-appb-100014
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100015
    或者
    Figure PCTCN2019127250-appb-100016
    个频域单元。
  26. 根据权利要求25所述的装置，其特征在于，所述N≥所述阈值W。
  27. 根据权利要求22-24任一项所述的装置，其特征在于，所述所述第二频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第二频域资源的频域起点与第一数据子信道的频域起点重合，或者所述第二频域资源的频域中心与所述第一数据子信道的频域中心重合；
    其中所述第一数据子信道为所述第一频域资源占用的至少一个数据子信道中居中的数据子信道。
  28. 根据权利要求22-27所述的装置，其特征在于，所述第一信道的时域终点与所述数据信道的时域起点重合，或者所述第一信道的时域起点与所述数据信道的时域终点重合。
  29. 根据权利要求28所述的装置，其特征在于，所述第一信道的发射参数与所述数据信道的发射参数不同，所述发射参数包括以下参数中的至少一种：天线端口号、多入多出MIMO传输方式或准共址QCL指示信息，其中所述MIMO传输方式为以下中的一种：波束赋形、空间复用、或发分集。
  30. 一种确定通信资源的装置，其特征在于，包括处理器、存储器和收发器；其中，
    所述处理器用于控制所述收发器检测到控制信道，所述控制信道占用第三频域资源，且所述第三频域资源的频宽为G个频域资源，所述控制信道承载的控制信息指示数据信道的频宽，所述数据信道的频宽为N个频域单元，其中所述G≤所述N，且所述G、所述N为正整数；
    所述处理器用于根据所述第三频域资源和所述N，确定第一频域资源；
    所述收发器在所述第一频域资源上检测所述数据信道。
  31. 根据权利要求30所述的装置，其特征在于，所述处理器用于根据所述第三频域资源和所述N，确定第一频域资源，包括：
    在所述G＝所述N的情况下，所述第三频域资源与所述第一频域资源相同；
    在所述G<所述N的情况下，所述第三频域资源的边界位于所述第一频域资源的边界内。
  32. 根据权利要求31所述的装置，其特征在于，所述所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第三频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第三频域资源的频域终点与所述第一频域资源的频域终点重合。
  33. 根据权利要求32所述的装置，其特征在于，所述G<所述N<阈值W，其中 所述阈值W>所述G，且所述W为正整数。
  34. 根据权利要求31-33任一项所述的装置，其特征在于，所述所述第三频域资源的边界位于所述第一频域资源的边界内，包括：
    所述第三频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100017
    或者
    Figure PCTCN2019127250-appb-100018
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100019
    或者
    Figure PCTCN2019127250-appb-100020
    个频域单元。
  35. 根据权利要求34所述的装置，其特征在于，所述N≥所述W。
  36. 根据权利要求30-35任一项所述的装置，其特征在于，所述控制信息还指示反馈信道的频宽，所述反馈信道的频宽为K个频域单元，其中所述K≤所述N，且K为正整数；
    所述处理器还用于根据所述K和所述第一频域资源，确定第四频域资源；
    所述收发器还用于在所述第四频域资源上检测所述反馈信道。
  37. 根据权利要求36所述的装置，其特征在于，所述处理器还用于根据所述K和所述第一频域资源，确定第四频域资源，包括：
    在所述K＝所述N的情况下，所述第四频域资源与所述第一频域资源相同；
    在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内。
  38. 根据权利要求37所述的装置，其特征在于，所述在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内，包括：
    在所述K<所述N<阈值W的情况下，所述第四频域资源的频域起点与所述第一频域资源的频域起点重合，或者，所述第四频域资源的频域终点与所述第一频域资源的频域终点重合；其中所述阈值W>所述K，且所述W为正整数。
  39. 根据权利要求37-38任一项所述的装置，其特征在于，所述在所述K<所述N的情况下，所述第四频域资源的边界位于所述第一频域资源的边界内，包括：
    在所述N≥所述W的情况下，所述第四频域资源的频域起点距离所述第一频域资源的频域起点的频宽为
    Figure PCTCN2019127250-appb-100021
    或者
    Figure PCTCN2019127250-appb-100022
    个频域单元；或者，
    所述第二频域资源的频域终点距离所述第一频域资源的频域终点的频宽为
    Figure PCTCN2019127250-appb-100023
    或者
    Figure PCTCN2019127250-appb-100024
    个频域单元。
  40. 根据权利要求30-39任一项所述的装置，其特征在于，所述频域单元为物理资源块(physical resource block，PRB)，或者所述频域单元为子信道。
  41. 一种包含指令的计算机存储介质，当其在计算机上运行时，使得计算机执行所述权利要求1-9中任一项所述的方法。
  42. 一种包含指令的计算机存储介质，当其在计算机上运行时，使得计算机执行所述权利要求10-20中任一项所述的方法。
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