WO2022151437A1 - 反馈信息发送方法、反馈信息接收方法及装置 - Google Patents

反馈信息发送方法、反馈信息接收方法及装置 Download PDF

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Publication number
WO2022151437A1
WO2022151437A1 PCT/CN2021/072322 CN2021072322W WO2022151437A1 WO 2022151437 A1 WO2022151437 A1 WO 2022151437A1 CN 2021072322 W CN2021072322 W CN 2021072322W WO 2022151437 A1 WO2022151437 A1 WO 2022151437A1
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WIPO (PCT)
Prior art keywords
uplink resource
carrier
feedback information
uplink
resource
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PCT/CN2021/072322
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English (en)
French (fr)
Inventor
苏桐
马蕊香
官磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/072322 priority Critical patent/WO2022151437A1/zh
Priority to CN202180089768.9A priority patent/CN116762437A/zh
Priority to PCT/CN2021/085744 priority patent/WO2022151599A1/zh
Publication of WO2022151437A1 publication Critical patent/WO2022151437A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications, and in particular, to a method for sending feedback information, a method and apparatus for receiving feedback information.
  • Hybrid automatic repeat request is a combination of forward error correction (forward error correction, EFC) technology and automatic repeat request (automatic repeat request, ARQ) technology, used for error control, Thereby, a communication method that ensures communication quality.
  • the network device may indicate a time unit and a physical uplink control channel (PUCCH) resource for sending feedback information.
  • the network device may send downlink control information (downlink control information, DCI) to the terminal device, and the DCI includes time slot offset and resource indication information.
  • DCI downlink control information
  • the terminal device may determine the PUCCH resource from the PUCCH resource set on the primary cell or the PUCCH cell according to the time slot offset and the resource indication information.
  • each cell has a corresponding carrier.
  • a PUCCH cell in addition to the primary cell that can be used to send feedback information, a PUCCH cell can also be configured.
  • the primary cell may be used to transmit feedback information on the primary cell, and may also be used to transmit feedback information of other cells in the CG.
  • the PUCCH cell may be used to transmit feedback information on the PUCCH cell, and may also be used to transmit feedback information of other cells in the CG.
  • all cells that transmit feedback information through the primary cell form one PUCCH group, and all cells that transmit feedback information through the PUCCH cells form another PUCCH group.
  • the PUCCH resource used for transmitting feedback information on the primary cell or the PUCCH cell is unavailable, such as the PUCCH resource has been configured to transmit downlink symbols, or there is a flexible symbol configured for downlink transmission on the PUCCH resource, the PUCCH resource cannot be used. It is used to transmit feedback information, causing the network device to instruct to send the feedback information on the resource after the PUCCH resource, thereby increasing the feedback delay, or not sending the feedback information, resulting in low communication reliability.
  • the embodiments of the present application provide a method for sending feedback information, a method and apparatus for receiving feedback information, which can send feedback information on cells other than PCell or PUCCH SCell according to the conditions of PUCCH resources configured on PCell or PUCCH SCell, thereby Reduce feedback delay and improve communication reliability.
  • a method for sending feedback information is provided, and the method for sending feedback information can be applied to a terminal device.
  • the method for sending feedback information may include: the terminal device determines the first uplink resource on the first carrier.
  • the first uplink resource is used to carry the first feedback information of the downlink data channel. If the time domain symbols occupied by the first uplink resource include downlink symbols and/or are configured as flexible symbols for downlink transmission, the terminal device sends the first feedback information on the second uplink resource of the target carrier.
  • the target carrier is different from the first carrier, the target carrier is one of multiple candidate carriers, the time domain symbol occupied by the second uplink resource is an uplink symbol, and/or is not configured as a flexible symbol for downlink transmission.
  • the feedback information sending method provided in the first aspect, when the first uplink resource cannot be used to transmit feedback information, it is possible to switch to a carrier other than the first carrier to transmit feedback information, so that feedback information can be transmitted in time, thereby reducing the feedback time. extension. By switching the carrier to transmit the feedback information, the feedback information can be transmitted on the carrier with uplink resources, thereby improving the reliability of communication.
  • the feedback information can be transmitted on a non-designated carrier, which can improve the flexibility of transmitting the feedback information, reduce the number of times the network device retransmits the same data, thereby improving the efficiency, reducing resource overhead and power consumption.
  • the method for sending feedback information provided by the first aspect may further include: the terminal device receives the first indication information.
  • the first indication information indicates the mapping relationship between the time slot index and the target carrier index.
  • the target carrier may be the carrier with the smallest absolute value of the difference between the subcarrier spacing of the first carrier and the multiple candidate carriers.
  • the subcarrier spacing of the target carrier may satisfy the following condition:
  • min(
  • min(
  • ⁇ fo is the subcarrier spacing of the first carrier
  • ⁇ f is the subcarrier spacing of the target carrier
  • ⁇ fi is the subcarrier spacing of the ith carrier in the candidate carrier
  • i is a positive integer
  • ⁇ o is the subcarrier spacing configuration of the first carrier
  • ⁇ g is the subcarrier spacing configuration of the target carrier
  • ⁇ j is the subcarrier spacing configuration of the jth carrier in the multiple candidate carriers
  • j is a positive integer.
  • the method for sending feedback information provided by the first aspect may further include: the terminal device determining the second uplink resource according to the first resource configuration information and the first resource indication information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier, and the first resource indication information indicates an uplink resource in the uplink resource set that is used to carry the first feedback information.
  • the target carrier has PUCCH resource configuration information
  • the second uplink resource can be determined from the target carrier to carry the first feedback information, and the target carrier can be selected according to the resource configuration to ensure that enough uplink resources exist on the target carrier.
  • the resources carry feedback information, thereby further improving transmission reliability and efficiency.
  • the second uplink resource and the first uplink resource have the same starting position in the time domain, and the second uplink resource and the first uplink resource have the same starting position in the frequency domain.
  • the second uplink resource can be determined from the target carrier to carry the first feedback information, and the target carrier can be selected according to the resource configuration to ensure that there are enough resources on the target carrier.
  • Uplink resources carry feedback information, thereby further improving transmission reliability and efficiency.
  • the time-frequency position of the first uplink resource may be the time-frequency position of the second uplink resource.
  • the method for sending feedback information provided in the first aspect may further include: the terminal device determining, according to the first resource configuration information and the second resource indication information, a second uplink resource for carrying the first feedback information and the second feedback information.
  • the third uplink resource is used to carry the first feedback information
  • the fourth uplink resource is used to carry the second feedback information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier
  • the second resource indication information indicates an uplink resource in the uplink resource set that is used to carry the second feedback information.
  • the two pieces of feedback information are transmitted on the second uplink resource, which can realize two pieces of feedback information at one time.
  • the transmission of feedback information can further reduce the feedback delay and reduce power consumption.
  • the time unit where the first uplink resource is located is the first time unit
  • the method for sending feedback information provided by the first aspect may further include: the terminal device stores the multiple candidate carriers in the first time unit memory.
  • the carrier of the scheduled uplink data channel is determined as the target carrier.
  • sending the first feedback information by the terminal device on the second uplink resource of the target carrier may include: the terminal device sending the first feedback information on the second uplink resource of the target carrier through an uplink data channel. In this way, by sending the first feedback information on the uplink data channel, the first feedback information can be sent while the uplink data channel is sent, which can reduce the number of times of information transmission, thereby further reducing the feedback delay and reducing power consumption.
  • the time domain positions of the time unit where the first uplink resource is located and the time domain location where the second uplink resource is located overlap.
  • the second uplink resource is located at the first time domain position, and the number of time domain symbols spaced between the time domain position where the downlink data channel is located and the first time domain position satisfies the processing capability of the terminal device.
  • the time domain position of the second uplink resource is determined according to the processing capability of the terminal device, so that the time delay and the processing capability of the terminal device can be considered.
  • the time domain starting position of the second uplink resource may be: the time domain symbol with the most forward time domain position in the first time domain symbol.
  • the first time-domain symbol is a time-domain symbol satisfying the processing capability of the terminal device.
  • the most forward-positioned time-domain symbol in the first time-domain symbol is determined as the starting position of the second uplink resource, so that feedback information can be sent as early as possible to further reduce the feedback delay.
  • the method for sending feedback information provided by the first aspect may further include: the terminal device receives the second indication information.
  • the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the target carrier is determined among the multiple candidate carriers.
  • the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the first feedback information is not sent. In this way, the terminal device can select whether to switch the carrier or whether to send the feedback information according to the second indication information, so as to further improve the flexibility of sending the feedback information.
  • a method for receiving feedback information is provided, and the method for receiving feedback information can be applied to a network device.
  • the method for receiving feedback information may include: determining a first uplink resource on a first carrier.
  • the first uplink resource is used to carry the first feedback information of the downlink data channel. If the time domain symbols occupied by the first uplink resource include downlink symbols and/or are configured as flexible symbols for downlink transmission, the network device receives the first feedback information on the second uplink resource of the target carrier.
  • the target carrier is different from the first carrier, the target carrier is one of multiple candidate carriers, the time domain symbols occupied by the second uplink resources are uplink symbols, and/or are not configured as flexible symbols for downlink transmission.
  • the method for receiving feedback information provided by the second aspect may further include: the network device sends the first indication information.
  • the first indication information indicates the mapping relationship between the time slot index and the target carrier index.
  • the target carrier may be the carrier with the smallest absolute value of the difference between the sub-carrier intervals of the first carrier and the plurality of candidate carriers.
  • the subcarrier spacing of the target carrier may satisfy the following condition:
  • min(
  • min(
  • ⁇ fo is the subcarrier spacing of the first carrier
  • ⁇ fg is the subcarrier spacing of the target carrier
  • ⁇ fi is the subcarrier spacing of the ith carrier in the candidate carrier
  • i is a positive integer
  • ⁇ o is the subcarrier spacing configuration of the first carrier
  • ⁇ g is the subcarrier spacing configuration of the target carrier
  • ⁇ j is the subcarrier spacing configuration of the jth carrier in the multiple candidate carriers
  • j is a positive integer.
  • the method for receiving feedback information provided by the second aspect may further include: the network device determining the second uplink resource according to the first resource configuration information and the first resource indication information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier, and the first resource indication information indicates an uplink resource in the uplink resource set that is used to carry the first feedback information.
  • the second uplink resource and the first uplink resource have the same starting position in the time domain, and the second uplink resource and the first uplink resource have the same starting position in the frequency domain.
  • the method for receiving feedback information provided in the second aspect may further include: the network device determining, according to the first resource configuration information and the second resource indication information, the second uplink resource to be used for carrying the first feedback information and the second feedback information.
  • the third uplink resource is used to carry the first feedback information
  • the fourth uplink resource is used to carry the second feedback information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier
  • the second resource indication information indicates an uplink resource in the uplink resource set that is used to carry the second feedback information.
  • the time unit where the first uplink resource is located is the first time unit
  • the feedback information receiving method provided in the second aspect may further include: the network device stores the multiple candidate carriers in the first time unit memory.
  • the carrier of the scheduled uplink data channel is determined as the target carrier.
  • the network device receiving the first feedback information on the second uplink resource of the target carrier includes: the network device receiving the first feedback information through the uplink data channel on the second uplink resource of the target carrier.
  • the time domain positions of the time unit where the first uplink resource is located and the time domain location where the second uplink resource is located overlap.
  • the second uplink resource is located at the first time domain position, and the number of time domain symbols spaced between the time domain position where the downlink data channel is located and the first time domain position satisfies the processing capability of the terminal device.
  • the time domain starting position of the second uplink resource may be: the time domain symbol with the most forward time domain position in the first time domain symbol.
  • the first time-domain symbol is a time-domain symbol satisfying the processing capability of the terminal device.
  • the method for receiving feedback information provided by the second aspect may further include: the network device sends second indication information.
  • the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the target carrier is determined among the multiple candidate carriers.
  • the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the first feedback information is not received.
  • a communication apparatus including a module for performing the method described in any one of the implementation manners of the first aspect.
  • a communication apparatus including a module for performing the method described in any one of the implementation manners of the second aspect.
  • a communication device in a fifth aspect, includes: a processor coupled to the memory, the processor is configured to execute a computer program stored in the memory, so that the communication apparatus executes the method described in any possible implementation manner of the first aspect.
  • a communication device in a sixth aspect, includes: a processor coupled to the memory, the processor is configured to execute a computer program stored in the memory, so that the communication apparatus executes the method described in any one of the possible implementations of the second aspect.
  • a communication device comprising a processor and an interface circuit, wherein the interface circuit is configured to receive signals from other devices other than the communication device and transmit to the processor or send signals from the processor to outside the communication device
  • the processor is used to implement the method described in any possible implementation manner of the first aspect through logic circuits or executing code instructions.
  • a communication device comprising a processor and an interface circuit, wherein the interface circuit is configured to receive signals from other devices other than the communication device and transmit to the processor or send signals from the processor to the outside of the communication device
  • the processor is used to implement the method described in any one of the possible implementation manners of the second aspect through logic circuits or executing code instructions.
  • a communication device including a processor and a transceiver, the transceiver is used for information interaction between the communication device and other devices, and the processor executes program instructions to execute the first aspect. Any one of the possible implementations of the method described.
  • a tenth aspect provides a communication device, including a processor and a transceiver, the transceiver is used for information interaction between the communication device and other devices, and the processor executes program instructions to execute the second aspect. Any one of the possible implementations of the method described.
  • a computer-readable storage medium comprising: a computer program or instruction; when the computer program or instruction is run on a computer, the computer is made to perform any one of the first aspect or the second aspect. implement the method described.
  • a twelfth aspect provides a computer program product, including a computer program or instructions, which, when the computer program or instructions are run on a computer, cause the computer to execute any one of the possible implementations of the first aspect or the second aspect. method described.
  • a thirteenth aspect provides a communication system, including the communication device described in any one of the third aspect, the fifth aspect, the seventh aspect, and the ninth aspect, as well as the fourth aspect, the sixth aspect, the eighth aspect, The communication device of any one of the tenth aspect.
  • FIG. 1 is a schematic diagram of a PUCCH group provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for sending and receiving feedback information according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a positional relationship between a first uplink resource and a time slot
  • FIG. 5 is a schematic diagram of the relationship between a target carrier and a time unit provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of the relationship of the subcarrier spacing between each carrier
  • FIG. 7 is a schematic diagram of the relationship between a target carrier and an uplink data channel
  • FIG. 8 is a schematic diagram of a time domain location of a second uplink resource
  • FIG. 9 is a schematic diagram 1 of the time-frequency position of the second uplink resource
  • FIG. 10 is a schematic diagram 2 of the time-frequency position of the second uplink resource
  • 11 is a schematic diagram of the relationship between resources and carriers that carry different feedback information
  • 12 is a schematic diagram 1 of the relationship between the third uplink resource and the fourth uplink resource;
  • 13 is a second schematic diagram of the relationship between the third uplink resource and the fourth uplink resource
  • FIG. 14 is a schematic structural diagram 1 of a communication device provided by an embodiment of the present application.
  • FIG. 15 is a second schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the terminal device After receiving the data sent by the network device, such as the data sent by the network device through the physical downlink shared channel (PDSCH), the terminal device can send feedback information to the network device.
  • the feedback information is used to indicate whether the data is decoded successfully. For example, if the data is successfully decoded, the feedback information is an acknowledgement (ACK). If the data decoding fails, the feedback information is a negative acknowledgement (NACK).
  • ACK and NACK are collectively referred to as HARQ-ACK information.
  • Time domain symbol which can also be referred to as symbol.
  • the time-domain symbols may be orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols, or may be discrete Fourier transform-spread-OFDM (discrete fourier transform-spread-OFDM, DFT- s-OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • DFT- s-OFDM discrete Fourier transform-spread-OFDM
  • Time slot In this embodiment of the present application, the number of OFDM symbols included in a time slot is 14 or 12, and the symbol numbers thereof may be 0 to 13 or 0 to 11. where, in the time domain, these symbols are continuous.
  • a time unit may include one or more time slots, or one or more time domain symbols.
  • SCS sub-carrier spacing
  • the time length of a time slot is different. The larger the subcarrier spacing is, the smaller the time length of the time slot; the smaller the subcarrier spacing is, the larger the time length of the time slot.
  • one time unit includes one time slot as an example for description.
  • Cell group MCG, SCG, PCell, SCell, PUCCH SCell, PUCCH group.
  • a cell group refers to a collection of multiple cells (cells) managed by the same network device and communicating with the same terminal device.
  • the CG can be further divided into a primary cell group (master cell group, MCG) and a secondary cell group (secondary cell group, SCG).
  • MCG master cell group
  • SCG secondary cell group
  • the cell used to initiate initial access is called a primary cell (PCell), and other cells other than the primary cell are called a secondary cell (secondary cell, SCell).
  • the cell used for initiating initial access is called a primary secondary cell (PSCell), and other cells other than the primary and secondary cells are called secondary cells.
  • the PUCCH resource may be configured on the PCell of the MCG, and the PUCCH resource may also be configured on the SCell.
  • a PUCCH resource can be configured on the PSCell of the SCG, and a PUCCH resource can also be configured on the SCell.
  • the SCell configured with PUCCH resources is called a PUCCH SCell.
  • One or more PUCCH cells may be configured in the same CG for transmitting feedback information.
  • a cell configured with PUCCH resources may include one or more of the following: PCell, or an SCell configured with PUCCH resources.
  • a cell configured with PUCCH resources may include one or more of the following: PSCell, or SCell configured with PUCCH resources.
  • a cell configured with PUCCH resources such as a PCell or a PUCCH SCell, may transmit feedback information of the cell configured with PUCCH resources, and may also transmit feedback information of one or more other SCells.
  • FIG. 1 is a schematic diagram of a PUCCH group. As shown in FIG. 1 , taking the MCG as an example, the MCG includes one PCell, one PUCCH SCell and multiple SCells (SCell1-SCell4). If the PUCCH group 1 includes: SCell1, SCell2 and PCell, the feedback information of PCell, SCell1 and SCell2 is transmitted on PCell.
  • the K1 values corresponding to PDSCH0, PDSCH1 and PDSCH2 in turn are: 3, 2, 1.
  • the K1 set of PUCCH group 1 is ⁇ 1, 2, 3 ⁇ , then the feedback information of PDSCH0, PDSCH1 and PDSCH2 are all transmitted on time slot 2(n+1)+1 of PCell.
  • PUCCH group 2 includes: SCell3, SCell4 and PUCCH SCell, the respective feedback information of PUCCH SCell, SCell3 and SCell4 is transmitted on PUCCH SCell.
  • the K1 value corresponding to PDSCH3, PDSCH4 and PDSCH5 in turn is: 1 , 1, 1, then the K1 set of PUCCH group 2 is ⁇ 1, 2 ⁇ , the feedback information of PDSCH3 and PDSCH5 is transmitted on 2(n+1) of PUCCH SCell, and the feedback information of PDSCH4 is in time slot 2 of PUCCH SCell (n+1)+1 transmission.
  • the working bandwidth of each cell may include one or more partial bandwidths (band width part, BWP).
  • the resources on one carrier may be resources corresponding to one or more partial bandwidths in one cell.
  • a 4th generation (4G) mobile communication system such as a long term evolution (LTE) system, a worldwide interoperability for microwave access, WiMAX) communication system
  • fourth generation (5th generation, 5G) mobile communication system such as new radio (new radio, NR) system
  • future communication system such as sixth generation (6th generation, 6G) mobile communication system, etc.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 2 is a schematic diagram of an architecture 100 of a communication system to which an embodiment of the present application is applied.
  • the communication system includes a network device 110 and a core network 120 .
  • the communication system 100 may further include the Internet 130 .
  • the network device 110 may include at least one wireless access network device (eg, 111a and 111b in FIG. 2 ), and may also include at least one terminal device (eg, 112a-112j in FIG. 2 ).
  • the terminal device is wirelessly connected to the wireless access network device, and the wireless access network device is wirelessly or wiredly connected to the core network.
  • the core network device and the radio access network device can be independent and different physical devices, or they can integrate the functions of the core network device and the logical function of the radio access network device on the same physical device, or they can be a single physical device. It integrates the functions of some core network equipment and some functions of the wireless access network equipment. Terminal devices and terminal devices and between wireless access network devices and wireless access network devices may be connected to each other in a wired or wireless manner.
  • FIG. 2 is only a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 2 .
  • the radio access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), the next generation in the fifth generation (5th generation, 5G) mobile communication system
  • Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also complete the base station part
  • a functional module or unit for example, may be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the radio access network device may be a macro base station (111a in FIG.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.
  • the following description takes a base station as an example of a radio access network device.
  • a terminal device may also be referred to as a terminal, user equipment (UE), a mobile station, a mobile terminal, and the like.
  • Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), IoT (internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc.
  • Terminal devices can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.
  • Base stations and terminal devices can be fixed or mobile.
  • Base stations and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water; can also be deployed in the air on aircraft, balloons and satellites.
  • the embodiments of the present application do not limit the application scenarios of the base station and the terminal device.
  • base stations and end devices may be relative, for example, helicopter or drone 112i in FIG. 2 may be configured as a mobile base station, for those end devices 112j that access network device 110 through 112i, end device 112i It is a base station; but for the base station 111a, 112i is a terminal device, that is, communication between 111a and 112i is performed through a wireless air interface protocol. Of course, communication between 111a and 112i may also be performed through an interface protocol between the base station and the base station. In this case, compared to 111a, 112i is also a base station. Therefore, both the base station and the terminal equipment may be collectively referred to as communication apparatuses, 111a and 111b in FIG. 2 may be referred to as communication apparatuses with base station functions, and 112a-112j in FIG. 2 may be referred to as communication apparatuses with terminal equipment functions.
  • Communication between base stations and terminal equipment, between base stations and base stations, and between terminal equipment and terminal equipment can be carried out through licensed spectrum, unlicensed spectrum, or both licensed spectrum and unlicensed spectrum at the same time; Communication is performed through a spectrum below 6 GHz (gigahertz, GHz), communication can also be performed through a spectrum above 6 GHz, and communication can be performed using a spectrum below 6 GHz and a spectrum above 6 GHz at the same time.
  • the embodiments of the present application do not limit the spectrum resources used for wireless communication.
  • the function of the base station may also be performed by a module (eg, a chip) in the base station, or may be performed by a control subsystem including the function of the base station.
  • the control subsystem including the base station function here may be the control center in the application scenarios of the above-mentioned terminal equipment such as smart grid, industrial control, intelligent transportation, and smart city.
  • the functions of the terminal equipment can also be performed by a module (such as a chip or a modem) in the terminal equipment, and can also be performed by a device including the functions of the terminal equipment.
  • the base station sends downlink signals or downlink information to the terminal equipment, and the downlink information is carried on the downlink channel;
  • the terminal equipment sends uplink signals or uplink information to the base station, and the uplink information is carried on the uplink channel.
  • a terminal device needs to establish a wireless connection with a cell controlled by the base station.
  • the cell that has established a wireless connection with the terminal equipment is called the serving cell of the terminal equipment.
  • the terminal equipment communicates with the serving cell, it will also be interfered by signals from neighboring cells.
  • the time domain symbols may be orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols, or may be discrete Fourier transform spread spectrum OFDM (Discrete Fourier Transform-spread-OFDM, DFT) symbols -s-OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • DFT discrete Fourier Transform-spread-OFDM
  • the symbols in the embodiments of the present application all refer to time-domain symbols.
  • PDSCH and PUSCH are only used as examples of downlink data channels and uplink data channels.
  • data channels and control channels may have different names. The embodiments of the application do not limit this.
  • FIG. 3 is a schematic flowchart of a method for sending and receiving feedback information according to an embodiment of the present application.
  • the method for sending and receiving feedback information can be applied to the communication between the terminal device and the network device shown in FIG. 2 .
  • the method for sending and receiving feedback information includes the following steps:
  • a terminal device determines a first uplink resource on a first carrier.
  • the network device may also determine the first uplink resource on the first carrier.
  • the first carrier may be a carrier or cell in the PUCCH group for sending feedback information, such as PCell or PUCCH SCell.
  • the first carrier corresponding to PDSCH0, PDSCH1 and PDSCH2 is PCell.
  • the first carrier corresponding to PDSCH3, PDSCH4 and PDSCH5 is PUCCH SCell.
  • the first uplink resource is used to carry the first feedback information of the downlink data channel.
  • determining the first uplink resource on the first carrier may include: determining the first uplink resource according to the DCI corresponding to the PDSCH and resource configuration information of the first carrier.
  • the DCI includes a time slot offset K1 and a physical uplink control channel resource indicator (PUCCH resource indicator, PRI).
  • the time slot offset K1 is used to indicate: the offset of the time unit where the first feedback information is sent relative to the time unit where the PDSCH is located.
  • a time unit may be a slot or a subslot.
  • the PRI is used to indicate: the PUCCH resource used for sending the first feedback information in the PUCCH resource set.
  • the time slot where the first uplink resource is located may be determined according to the time domain position of the PDSCH and the time slot offset K1.
  • the first uplink resource is located in the K1th time slot after the time slot where the PDSCH is located. Then, the first uplink resource is determined from the PUCCH resource set according to the PRI. The following description is made with reference to FIG. 4 .
  • FIG. 4 is a schematic diagram showing the positional relationship between the first uplink resource and the time slot.
  • PUCCH group 1 includes: carrier CC0, carrier CC1 and carrier CC2.
  • the carrier CC0 corresponds to a cell configured with PUCCH resources, such as PCell.
  • the PUCCH group 2 includes: carrier CC3, carrier CC4 and carrier CC5.
  • the carrier CC3 corresponds to a cell configured with PUCCH resources, such as a PUCCH SCell.
  • the K1 set (set) of PUCCH group 1 is ⁇ 1, 2, 3 ⁇
  • the K1 set of PUCCH group 2 is ⁇ 1, 2 ⁇ .
  • the first uplink resource PUCCH10 corresponding to PDSCH0 is located on time slot 2(n+1)+1 of carrier CC0. If the PUCCH resource set of carrier CC0 includes PUCCH resources corresponding to resource index 1 to resource index 10, and the resource index indicated by the PRI corresponding to PDSCH0 is 3, the first uplink resource is the PUCCH resource corresponding to resource index 3. In other words, the first uplink resource is the resource at the time-frequency position where the resource index 3 is located.
  • the feedback information corresponding to PDSCH3 is sent on time slot 2(n+1) of carrier CC3, in other words, the first uplink corresponding to PDSCH3 Resource PUCCH13 is located on slot 2(n+1) of carrier CC3.
  • the feedback information corresponding to PDSCH4 is sent on time slot 2(n+1)+1 of carrier CC3, in other words, PDSCH4
  • the corresponding first uplink resource PUCCH14 is located on time slot 2(n+1)+1 of carrier CC3.
  • the feedback information corresponding to PDSCH5 is sent on time slot 2(n+1) of carrier CC3.
  • the first uplink resource PUCCH15 (not shown in FIG. 4 ) corresponding to the PDSCH5 is located on the time slot 2(n+1) of the carrier CC3.
  • the terminal device sends the first feedback information on the second uplink resources of the target carrier.
  • the network device receives the first feedback information on the second uplink resource of the target carrier.
  • the target carrier is different from the first carrier, the target carrier is one of multiple candidate carriers, and the time-domain symbols occupied by the second uplink resources include uplink symbols, and/or are not configured as flexible symbols for downlink transmission.
  • any one or more of the time domain symbols occupied by the first uplink resource is any one of the following items: downlink symbols, or flexible symbols configured for downlink transmission.
  • the downlink symbol may be a time domain symbol configured by the DCI for uplink transmission.
  • the flexible symbols configured for downlink transmission may be flexible symbols configured for downlink transmission by time slot format indication information or DCI.
  • the candidate carriers may include other carriers except the first carrier in the PUCCH group where the first carrier is located.
  • the candidate carriers may also include carriers in other PUCCH groups in the CG where the first carrier is located, such as carriers corresponding to PCell or carriers corresponding to PUCCH SCells. It can be understood that, in this embodiment of the present application, the first carrier in one PUCCH group may also be a candidate carrier of another PUCCH group. The following is still described with reference to FIG. 4 .
  • the candidate carrier may include one or more of the following: carrier CC1, carrier CC2 and carrier CC3.
  • the candidate carrier may include one or more of the following: carrier CC0, carrier CC4 and carrier CC5.
  • the target carrier may be selected from candidate carriers when the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, and are used to carry the first feedback information carrier.
  • the target carrier may be selected according to one or more of the following conditions: the mapping relationship between the slot index and the target carrier index, the subcarrier spacing, the physical uplink shared channel (PUSCH), or other feedback information.
  • the mapping relationship between the slot index and the target carrier index the subcarrier spacing, the physical uplink shared channel (PUSCH), or other feedback information.
  • PUSCH physical uplink shared channel
  • Manner 1 The target carrier is determined based on the mapping relationship between the slot index and the target carrier index.
  • FIG. 5 is a schematic diagram of a relationship between a target carrier and a time slot according to an embodiment of the present application.
  • the subcarrier intervals of the carrier CC0, the carrier CC1 and the carrier CC2 are all 30 kHz, and the time slot lengths of the respective carriers are the same.
  • the mapping relationship between the time slot index and the target carrier index is as follows: time slot 2n corresponds to carrier CC1, time slot 2n+1 corresponds to carrier CC3, time slot 2(n+1) corresponds to carrier CC1, and time slot 2(n+1) corresponds to carrier CC1.
  • Slot 2(n+1)+1 corresponds to carrier CC0.
  • the first uplink resource PUCCH0 corresponding to PDSCH0 is located in time slot 2n+1 of carrier CC0. Since the carrier index corresponding to the time slot 2n+1 of the carrier CC0 is "CC3", the target carrier corresponding to the PDSCH0 is the carrier CC3. Similarly, the value of K1 corresponding to PDSCH1 is 1, and the first uplink resource PUCCH11 corresponding to PDSCH1 is located in time slot 2(n+1) of carrier CC0. Since the index of the target carrier corresponding to time slot 2(n+1) is "CC1", the target carrier corresponding to PDSCH1 is carrier CC1.
  • the method for sending and receiving feedback information provided in FIG. 3 may further include: the network device sends the first indication information to the terminal device.
  • the terminal device receives the first indication information.
  • the first indication information indicates the mapping relationship between the time slot index and the target carrier index.
  • the terminal device may determine the target carrier according to the first indication information.
  • the network device may determine the target carrier according to the first indication information.
  • the target carrier can be determined according to the mapping relationship between the time slot index and the target carrier index, and the calculation process of determining the target carrier can be reduced, thereby simplifying the operation and further reducing the feedback delay.
  • the target carrier is determined based on the subcarrier spacing.
  • the target carrier may be the carrier with the smallest absolute value of the difference between the subcarrier spacing of the first carrier and the plurality of candidate carriers. That is, the subcarrier spacing of the target carrier satisfies one or more of the following conditions:
  • ⁇ fo is the subcarrier spacing of the first carrier
  • ⁇ fg is the subcarrier spacing of the target carrier
  • ⁇ fi is the subcarrier spacing of the ith carrier in the candidate carrier
  • i is a positive integer
  • ⁇ o is the subcarrier spacing configuration of the first carrier
  • ⁇ g is the subcarrier spacing configuration of the target carrier
  • ⁇ j is the subcarrier spacing configuration of the jth carrier in the multiple candidate carriers
  • j is a positive integer.
  • FIG. 6 is a schematic diagram showing the relationship between the subcarrier spacings between the respective carriers.
  • the PUCCH group includes: carrier CC0, carrier CC1, carrier CC6 and carrier CC7.
  • the sub-carrier spacing of carrier CC0 and the sub-carrier spacing of carrier CC1 are 30 kHz
  • the sub-carrier spacing of carrier CC6 is 60 kHz
  • the sub-carrier spacing of carrier CC7 is 15 kHz.
  • PDSCH0 is located on time slot 2n of carrier CC0. If the value of K1 corresponding to PDSCH0 is 2, then time slot 2 (n+1) on carrier CC0 is used to carry the feedback information of PDSCH0.
  • Time slot 2(n+1) of carrier CC1, time slot 4(n+1) of carrier CC6, time slot 4(n+1)+1 of carrier CC6 and time slot n+1 of carrier CC7 are all uplink time gap.
  • the target carrier may be carrier CC1.
  • the uplink time slot is a time slot that can be used to transmit feedback information, and the time domain symbols of the uplink time slot may include one or more of the following: uplink symbols, unconfigured flexible symbols, or flexible symbols configured for uplink transmission.
  • Downlink time slots are time slots that are not available for transmitting feedback information.
  • a downlink time slot may include one or more of the following: downlink symbols, or flexible symbols configured for downlink transmission.
  • the candidate carrier with the closest subcarrier spacing to the first carrier may be selected as the target carrier.
  • a candidate carrier with the same subcarrier spacing as the first carrier may be selected as the target carrier, so that the conversion operation of the carrier index can be simplified, and the feedback delay can be further reduced.
  • Manner 3 Determine the target carrier based on the PUSCH.
  • the time unit where the first uplink resource is located is the first time unit
  • the method for sending and receiving feedback information provided in FIG. 3 may further include: the terminal device assigns, among the multiple candidate carriers, the scheduled ones in the first time unit The carrier of the uplink data channel is determined as the target carrier.
  • the network device determines, among the multiple candidate carriers, the carrier that has the scheduled uplink data channel in the first time unit as the target carrier.
  • the carrier CC2 is the target carrier.
  • the subcarrier intervals of the carrier CC0 to the carrier CC3 are equal.
  • the value of K1 of PDSCH2 is 1, and the first uplink resource PUCCH12 corresponding to PDSCH2 is located in time slot 2(n+1)+1 of carrier CC0.
  • Time slot 2(n+1)+1 of carrier CC0 is a downlink time slot and no feedback information can be sent.
  • Time slot 2(n+1)+1 of carrier CC1 and time slot 2(n+1)+1 of carrier CC2 Both are uplink time slots. If the carrier CC1 has a scheduled PUSCH on slot 2(n+1)+1, the target carrier is the carrier CC1.
  • Manner 4 Determine the target carrier based on other feedback information.
  • the carrier CC7 is the target carrier.
  • Manner 5 Determine the target carrier based on various conditions.
  • the target carrier may be determined according to the mapping relationship between the slot index and the target carrier index, the subcarrier spacing, the PUSCH, or the respective priorities of other feedback information. As shown in FIG. 6 , if the conditions for determining the target carrier include: other feedback information and subcarrier spacing, and the priority of other feedback information is higher than that of the subcarrier spacing, the target carrier is CC7.
  • candidate carriers that satisfy multiple conditions at the same time may also be determined as target carriers.
  • various conditions include: the subcarrier spacing of the candidate carrier is the same as the subcarrier spacing of the first carrier, and the time slot of the candidate carrier corresponding to the time slot where the first feedback information is located is configured with PUSCH.
  • the time slot 2(n+1) of the carrier CC2 is configured with PUSCH. If the priority of the PUSCH is higher than the priority of the subcarrier interval, the carrier CC2 is the target carrier.
  • the various conditions also include the priority of the carrier. If PUSCH is configured on time slot 2(n+1) of carrier CC1 and time slot 2(n+1) of carrier CC2, the priority corresponding to carrier CC2 is higher than the priority corresponding to carrier CC1, then carrier CC2 is the target carrier.
  • the target carrier may be determined according to the subcarrier spacing and the carrier index of the carrier. If there are two or more candidate carriers with the closest subcarrier spacing to the first carrier, the target carrier is the one with the smallest carrier index among the candidate carriers closest to the subcarriers of the first carrier.
  • the listed conditions for selecting the target carrier are only used as examples, and the conditions for determining the target carrier are not specifically limited. It can be understood that, in a specific implementation manner, the target carrier may also be determined according to other conditions, or the target carrier may be determined according to other combinations of conditions, which will not be repeated in this embodiment of the present application.
  • the target carrier is determined from the candidate carriers with the closest subcarrier spacing to simplify the operation and improve the efficiency.
  • the first carrier and the candidate carrier may be different BWPs in the same cell, and the cell may be PCell or SCell.
  • the first carrier is BWP1 on PCell
  • the candidate carrier is BWP2 on PCell.
  • each of the time domain symbols occupied by the second uplink resource is one of the following items: an uplink symbol, or a flexible symbol that is not configured for downlink transmission.
  • the flexible symbols that are not configured for downlink transmission include: flexible symbols that are not configured for uplink transmission, or flexible symbols that are configured for uplink transmission.
  • the uplink symbol may be a time domain symbol configured by the DCI for uplink transmission.
  • the flexible symbols configured for uplink transmission may be flexible symbols configured for uplink transmission by time slot format indication information or DCI.
  • the unconfigured flexible symbol may be a flexible symbol that is not configured for downlink transmission or uplink transmission without time slot format indication information or DCI.
  • the method for sending and receiving feedback information shown in FIG. 3 may further include: the terminal device determines the time unit where the second uplink resource is located.
  • the network device may also determine the time unit where the second uplink resource is located.
  • the time slot index of the time slot where the second uplink resource is located is the same as the time slot index of the time slot where the first uplink resource is located.
  • the subcarrier spacing of carrier CC0 and carrier CC2 shown in FIG. 6 are the same. If CC2 is the target carrier, the first uplink resource is on time slot 2(n+1) of carrier CC0, and the second uplink resource is on carrier CC2. on time slot 2(n+1).
  • the second uplink resource is one of the time slots of the target carrier corresponding to the time slot where the first uplink resource is located.
  • the target carrier is carrier CC6
  • the subcarrier spacing of carrier CC6 is twice the subcarrier spacing of carrier CC0
  • the time slot length of carrier CC6 is 1/2 of the time slot length of carrier CC0 .
  • the first uplink resource is located on time slot 2(n+1) of carrier CC0, and the time slots corresponding to time slot 2(n+1) of carrier CC0 on carrier CC6 are: time slot 4(n+1) and time slot 4(n+1) 4(n+1)+1, therefore, the second uplink resource is located on time slot 4(n+1) of carrier CC6 or time slot 4(n+1)+1 of carrier CC6.
  • the second uplink resource is: on the target carrier, the time domain position includes the time slot of the time domain position where the first uplink resource is located.
  • the target carrier is carrier CC7
  • the subcarrier spacing of carrier CC7 is 1/2 of the subcarrier spacing of carrier CC0
  • the time slot length of carrier CC7 is twice the time slot length of carrier CC0
  • the first uplink resource is located on the time slot 2(n+1) of the carrier CC0. Since the time slot 2(n+1) of the carrier CC0 includes the first seven time domain symbols of the time slot n+1 of the carrier CC7, therefore,
  • the second uplink resource is located on time slot n+1 of carrier CC7.
  • the second uplink resource and the first uplink resource have the same starting position in the time domain, and the second uplink resource and the first uplink resource have the same starting position in the frequency domain.
  • FIG. 8 is a schematic diagram of the time domain location of the second uplink resource.
  • the first uplink resource PUCCH10 and the time slot of carrier CC0 are determined according to the K1 value 3 corresponding to PDSCH0 and the corresponding PRI.
  • 2(n+1)+1 is the downlink time slot
  • the time slot 2(n+1)+1 of the carrier CC1 is the uplink time slot.
  • the time domain starting position of the first uplink resource PUCCH10 is the time domain position corresponding to time ts
  • the time domain starting position of the second uplink resource PUCCH20 corresponding to PDSCH0 is the time domain position corresponding to time ts on CC0.
  • the frequency domain starting position of the first uplink resource PUCCH10 is the frequency domain position corresponding to the fs frequency point
  • the frequency domain starting position of the second uplink resource PUCCH20 is the frequency domain position corresponding to the fs frequency point on CC1.
  • the time domain end position of the second uplink resource may also be the same as the time domain end position of the first uplink resource. In other words, the time domain position of the first uplink resource coincides with the time domain position of the second uplink resource.
  • time slot 2(n+1)+1 of carrier CC0 is a downlink time slot
  • time slot 2(n+1) of carrier CC2 is a downlink time slot
  • +1)+1 is an uplink time slot
  • the second uplink resource PUCCH20 corresponding to PDSCH0 may be located in time slot 2(n+1)+1 of carrier CC2.
  • the time slot 2n+1 of the carrier CC0 is a downlink time slot
  • the time slot 2(n) of the carrier CC0 is a downlink time slot.
  • +1) is the downlink time slot
  • the time slot 2(n+1) of the carrier CC1 is the uplink time slot
  • the time slot 2n+1 of the carrier CC2 is the uplink time slot
  • the second uplink resource PUCCH20 corresponding to PDSCH0 is located in the carrier CC2 In time slot 2n+1.
  • the second uplink resource PUCCH21 corresponding to the PDSCH1 is located in the time slot 2(n+1) of the carrier CC2.
  • FIG. 9 is a schematic diagram 1 of time-frequency positions of the second uplink resource.
  • a carrier CC0 with a subcarrier spacing of 30 kHz and a carrier CC1 with a subcarrier spacing of 30 kHz are used as examples.
  • the first uplink resource PUCCH10 corresponding to PDSCH0 is located on the time slot 2(n+1) of the carrier CC0
  • the time slot 2(n+1) of the carrier CC0 is the downlink time slot
  • the time slot 2(n+1) of the carrier CC1 For the uplink time slot, the second uplink resource PUCCH20 corresponding to the PDSCH0 may be located on the time slot 2(n+1) on the carrier CC1.
  • the first uplink resource PUCCH10 includes a resource block corresponding to subcarrier RE0 and time domain symbol 2-time domain symbol 7 on time slot 2(n+1) of carrier CC0
  • the second uplink resource PUCCH20 includes the time slot of carrier CC1 On 2(n+1)
  • the subcarrier RE0 is the resource block corresponding to the time-domain symbol 2-time-domain symbol 7.
  • the resources corresponding to the subcarrier RE0 and the time-domain symbol 2-time-domain symbol 7 on the time slot 2(n+1) of the carrier CC0 are the feedback resources for transmitting feedback information
  • the resources corresponding to the upper subcarrier RE0 and the time-domain symbol 2-time-domain symbol 7 are feedback resources for transmitting feedback information.
  • FIG. 10 is a second schematic diagram of the time-frequency position of the second uplink resource.
  • a carrier CC0 with a subcarrier spacing of 30 kHz and a carrier CC6 with a subcarrier spacing of 60 kHz are used as examples.
  • the first uplink resource PUCCH10 corresponding to PDSCH0 is located on the time slot 2(n+1) of the carrier CC0, the time slot 2(n+1) of the carrier CC0 is the downlink time slot, and the time slot 4(n+1) of the carrier CC6 +1 is an uplink time slot, then the second uplink resource PUCCH20 corresponding to PDSCH0 may be located on time slot 4(n+1)+1 on carrier CC6.
  • the second uplink resource PUCCH20 includes the time slot of the carrier CC6 Resource blocks corresponding to subcarrier RE0 and time-domain symbol 2-time-domain symbol 7 on 4(n+1)+1, and resource blocks corresponding to sub-carrier RE1 and time-domain symbol 2-symbol 7.
  • the resources corresponding to the subcarrier RE0 and the time-domain symbol 2-time-domain symbol 7 on the time slot 2(n+1) of the carrier CC0 are the feedback resources for transmitting feedback information
  • Resource blocks corresponding to subcarrier RE0 and time domain symbol 2-time domain symbol 7 on +1, and resource blocks corresponding to subcarrier RE1 and time domain symbol 2-symbol 7 are feedback resources for transmitting feedback information.
  • the duration required by the terminal device to process the PDSCH is the duration corresponding to x time domain symbols on the target carrier, then when the time domain start position of the first uplink resource is the same as the time domain start position of the second uplink resource, It can be ensured that the feedback information is sent after the last x-th time-domain symbol of the PDSCH.
  • the feedback information is transmitted after the time domain position of the first uplink resource, so that the resource for transmitting the feedback information can meet the processing capability requirement of the terminal device, thereby improving the transmission reliability.
  • the method for sending and receiving feedback information provided in FIG. 3 may further include: the terminal device determines the second uplink resource according to the first resource configuration information and the first resource indication information.
  • the network device determines the second uplink resource according to the first resource configuration information and the first resource indication information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier, and the first resource indication information indicates an uplink resource in the uplink resource set that is used to carry the first feedback information.
  • the following description is made with reference to FIG. 11 .
  • FIG. 11 is a schematic diagram showing the relationship between resources carrying different feedback information and carriers.
  • PUCCH group 1 includes: carrier CC0-carrier CC2, wherein carrier CC0 is the first carrier.
  • PUCCH group 2 includes: carrier CC3-carrier CC5, wherein carrier CC3 has PUCCH resource configuration information. If the target carrier corresponding to PDSCH0 is carrier CC3, the first resource configuration information is the PUCCH resource configuration information of carrier CC3, and the first resource indication information is the PRI corresponding to PDSCH0.
  • determining the second uplink resource according to the first resource configuration information and the first resource indication information may include: determining the second uplink resource from the PUCCH resource set of the target carrier according to the first resource indication information.
  • the second uplink resource can be determined from the target carrier to carry the first feedback information, and the target carrier can be selected according to the resource configuration to ensure that enough resources exist on the target carrier.
  • the uplink resources carry feedback information, thereby further improving transmission reliability and efficiency.
  • the method for sending and receiving feedback information provided in FIG. 3 may further include: the terminal device determines, according to the first resource configuration information and the second resource indication information, the second uplink resource to be used to carry the first feedback information and the second Feedback.
  • the network device determines, according to the first resource configuration information and the second resource indication information, that the second uplink resource is used to carry the first feedback information and the second feedback information.
  • the third uplink resource is used to carry the first feedback information
  • the fourth uplink resource is used to carry the second feedback information.
  • the first resource configuration information is used to indicate an uplink resource set of the target carrier
  • the second resource indication information indicates an uplink resource in the uplink resource set that is used to carry the second feedback information.
  • the third uplink resource may be determined according to the first resource configuration information and the first resource indication information, or the third uplink resource may also be determined according to the second resource configuration information and the second resource indication information on the first carrier Sure.
  • the fourth uplink resource may be determined according to the third resource configuration information and the third resource indication information, or the fourth uplink resource may be determined according to the fourth resource configuration information and the fourth resource indication information.
  • the third uplink resource and the fourth uplink resource may be determined in the manner of determining the second uplink resource.
  • FIG. 11 is a schematic diagram showing the relationship between resources carrying different feedback information and carriers.
  • the PUCCH resource configuration information on carrier CC3 is the first resource configuration information
  • PDSCH1 on time slot 2n+1 of carrier CC3 corresponds to
  • the PRI in the DCI is the second resource indication information.
  • the second feedback information is feedback information corresponding to PDSCH3
  • the second resource indication information may be PRI in DCI corresponding to PDSCH3.
  • the third uplink resource PUCCH30 corresponding to PDSCH0 is the PUCCH resource determined according to the K1 value 3 corresponding to PDSCH0 and the PRI corresponding to PDSCH0.
  • time slot 2(n+1)+1 on carrier CC0 is a downlink time slot
  • time slot of carrier CC3 Slot 2(n+1)+1 is an uplink time slot
  • the fourth uplink resource PUCCH40 corresponding to PDSCH3 is an uplink resource determined according to the K1 value 2 corresponding to PDSCH3 and the PRI corresponding to PDSCH3.
  • the second resource indicates that if time slot 2(n+1)+1 on carrier CC0 is a downlink time slot, time slot 2(n+ 1) +1 is the uplink time slot, then the PUCCH resource configuration information on the carrier CC3 is the first resource configuration information, and the PRI in the DCI corresponding to the PDSCH4 on the time slot 2 (n+1) of the carrier CC4 is the second resource indication information.
  • the fourth uplink resource may be a PUCCH resource determined according to a K1 value of 1 of PDSCH4 and a PRI corresponding to PDSCH4. It can be understood that, if the second feedback information is feedback information corresponding to PDSCH4, the second resource indication information may be PRI in DCI corresponding to PDSCH4.
  • FIG. 12 is a schematic diagram 1 of the relationship between the third uplink resource and the fourth uplink resource.
  • the target carrier as carrier CC3 as an example
  • the time slot 2n-time slot 2(n+1) of the carrier CC3 is a downlink time slot
  • the time slot 2(n+1)+ 1 is the uplink time slot
  • the first feedback information and the second feedback information are fed back in the same time unit of the target carrier, which may be the third uplink resource PUCCH30 corresponding to the first feedback information in the time slot 2 (n+1) of the carrier CC3 )+1
  • the fourth uplink resource PUCCH40 corresponding to the second feedback information is also in the time slot 2(n+1)+1 of the carrier CC3.
  • FIG. 13 is a second schematic diagram of the relationship between the third uplink resource and the fourth uplink resource.
  • the time slot 2n-time slot 2(n+1) of the carrier CC3 is a downlink time slot
  • the time slot 2(n+1)+1 of the carrier CC3 is an uplink time slot
  • the carrier CC3 On the time slot 2(n+1)+1 of , the third uplink resource PUCCH30 overlaps with the fourth uplink resource PUCCH40 on the target carrier in the time domain, which can be in the time domain symbol occupied by the third uplink resource PUCCH30,
  • the situation that the first feedback information and the second feedback information are fed back within the same time unit of the target carrier may also include that the third uplink resource on the target carrier and the fourth uplink resource on the target carrier are in the time domain. overlapping situation.
  • the target carrier is a carrier determined according to the PUSCH
  • the second uplink resource may include time domain symbols occupied by the PUSCH.
  • Sending the first feedback information by the terminal device on the second uplink resource of the target carrier may include: the terminal device sending the first feedback information on the second uplink resource of the target carrier through an uplink data channel.
  • the network device receiving the first feedback information on the second uplink resource of the target carrier may include: the network device receiving the first feedback information through the uplink data channel on the second uplink resource of the target carrier.
  • the first feedback information is sent on the uplink data channel.
  • the uplink data channel is sent, the first feedback information is sent, which can reduce the number of times of information transmission, thereby further reducing the feedback delay and reducing power consumption.
  • the time domain positions of the time unit where the first uplink resource is located and the time domain location where the second uplink resource is located overlap.
  • time domain symbols of the first uplink resource and the time domain symbol of the second uplink resource there are time domain symbols with the same duration.
  • the number of time domain symbols in the interval between the second uplink resource and the start time domain of the first uplink resource can be reduced, and the feedback delay can be further reduced.
  • the second uplink resource is located at the first time domain position, and the number of time domain symbols spaced between the time domain position where the downlink data channel is located and the first time domain position satisfies the processing capability of the terminal device.
  • the first time domain position may be a time domain resource occupied by a time domain symbol of the second uplink resource.
  • the time domain position of the second uplink resource is determined according to the processing capability of the terminal device, which can take into account the delay and the processing capability of the terminal device, avoid resource idling, and reduce resource waste.
  • the time domain starting position of the second uplink resource may be: the time domain symbol with the most forward time domain position in the first time domain symbol.
  • the first time-domain symbol is a time-domain symbol satisfying the processing capability of the terminal device.
  • the most forward-positioned time-domain symbol in the first time-domain symbol is determined as the starting position of the second uplink resource, so that feedback information can be sent as early as possible to further reduce the feedback delay.
  • the method for sending and receiving feedback information provided in FIG. 3 may further include: the network device sends second indication information.
  • the terminal device receives the second indication information.
  • the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the target carrier is determined among the multiple candidate carriers. Or, the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the first feedback information is not sent. Or, the second indication information indicates: if the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the first feedback information is not received.
  • the terminal device determines the target carrier among the multiple candidate carriers.
  • the network device may also determine the target carrier from among the multiple candidate carriers. If the time domain symbols occupied by the first uplink resources include downlink symbols, and/or are configured as flexible symbols for downlink transmission, the terminal device may not send the first feedback information. Correspondingly, the network device may not receive the first feedback information.
  • the second indication information may be implemented in the form of switches, or in the form of parameters, or in the form of a combination of parameters and numerical values. For example, if the second indication information is an on signal indicating "on”, the time domain symbols occupied by the first uplink resource of the terminal device include downlink symbols, and/or, when configured as flexible symbols for downlink transmission, when multiple The target carrier is determined from among the candidate carriers. Or, the second indication information is a shutdown signal indicating "off", then the terminal device does not send the first time domain symbol occupied by the first uplink resource includes downlink symbols, and/or when it is configured as a flexible symbol for downlink transmission. a feedback.
  • the terminal device can select whether to switch the carrier or whether to send the feedback information according to the second indication information, so as to further improve the flexibility of sending the feedback information.
  • the implementation manner of the second indication information is not specifically limited.
  • the first uplink resource when it cannot be used to transmit feedback information, it can switch to a target carrier other than the first carrier to transmit feedback information, so that feedback information can be transmitted in time, thereby reducing feedback delay.
  • the carrier By switching the carrier to transmit the feedback information, the feedback information can be transmitted on the carrier with uplink resources, thereby improving the reliability of the feedback information transmission.
  • the feedback information can be transmitted on a non-designated carrier, which improves the flexibility of transmitting the feedback information and reduces the number of times the base station retransmits the same data, thereby improving the efficiency, reducing resource overhead and power consumption.
  • the feedback information transmission method provided by the embodiment of the present application has been described in detail above with reference to FIG. 3 to FIG. 13 .
  • a communication apparatus for executing the feedback information sending method provided by the embodiments of the present application will be described in detail below with reference to FIG. 14 to FIG. 15 .
  • FIG. 14 and FIG. 15 are schematic structural diagrams of possible communication apparatuses provided by embodiments of the present application. These communication apparatuses can be used to implement the functions of the terminal equipment or the network equipment in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.
  • the communication apparatus may be a terminal device or a network device as shown in FIG. 2, and may also be a module (such as a chip) applied to the terminal device or the network device.
  • the communication apparatus 1400 includes: a processing module 1401 and a transceiver module 1402 .
  • the communication apparatus 1400 is configured to implement the functions of the terminal device or the network device in the method embodiment shown in FIG. 3 above.
  • the processing module 1401 is used to perform the data processing and logical judgment functions of the terminal equipment in FIG. 3 ;
  • the transceiver module 1402 is used to perform the functions of the terminal equipment in FIG. The information sending and receiving function of terminal equipment.
  • the processing module 1401 is used to perform the data processing and logical judgment functions of the network device in FIG. 3; the transceiver module 1402 is used to perform the function of the network device in FIG. The information sending and receiving function of the network equipment.
  • the communication apparatus 1500 includes a processor 1501 and an interface circuit 1502 .
  • the processor 1501 and the interface circuit 1502 are coupled to each other.
  • the interface circuit 1502 can be a transceiver or an input-output interface.
  • the communication device 1500 may further include a memory 1503 for storing instructions executed by the processor 1501 or input data required by the processor 1501 to execute the instructions or data generated after the processor 1501 executes the instructions.
  • the terminal device chip When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments.
  • the terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device antenna) to send information, the information is sent by the terminal equipment to the network equipment.
  • modules such as a radio frequency module or an antenna
  • the network device chip When the above communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments.
  • the network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or, the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna). antenna) to send information, the information is sent by the network equipment to the terminal equipment.
  • the processor in the embodiments of the present application may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor may be a microprocessor or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions may be composed of corresponding software modules, and software modules may be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may reside in a network device or end device.
  • the processor and the storage medium may also exist in the network device or the terminal device as discrete components.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs or instructions.
  • the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable apparatus.
  • the computer program or 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 program or instructions may be downloaded from a website, computer, A server or data center transmits by wire or wireless to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, data center, or the like that integrates one or more available media.
  • the usable media may be magnetic media, such as floppy disks, hard disks, magnetic tapes; optical media, such as digital video discs; and semiconductor media, such as solid-state drives.
  • the computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media, volatile and non-volatile.
  • “at least one” means one or more, and “plurality” means two or more.
  • “And/or”, which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are a kind of "or” relationship; in the formula of this application, the character "/” indicates that the related objects are a kind of "division” Relationship.

Abstract

本申请提供一种反馈信息发送方法、反馈信息接收方法及装置，本申请实施例涉及通信技术领域。通过本申请实施例提供的方法，当用于传输第一反馈信息的第一上行资源中包括下行符号或被配置为下行传输的灵活符号的情况下，将第一反馈信息切换到目标载波的第二上行资源上进行发送，从而可以降低反馈时延，提高可靠性。

Description

反馈信息发送方法、反馈信息接收方法及装置 技术领域
本申请涉及通信领域，尤其涉及一种反馈信息发送方法、反馈信息接收方法及装置。
背景技术
混合自动重传请求(hybrid automatic repeat request，HARQ)是一种结合了前向纠错(forward error correction，EFC)技术与自动重传请求(automatic repeat request，ARQ)技术，用于进行差错控制，从而确保通信质量的通信方法。
以接收端是用户设备(user equipment，UE)，发送端是网络设备为例。网络设备可以指示用于发送反馈信息的时间单元和物理上行控制信道(physical uplink control channel，PUCCH)资源。具体地，网络设备可以向终端设备发送下行控制信息(downlink control information，DCI)，DCI中包括时隙偏移量和资源指示信息。终端设备可以根据时隙偏移量和资源指示信息从主小区或PUCCH小区上的PUCCH资源集合中，确定PUCCH资源。
然而，在载波聚合(carrier aggregation，CA)场景下，每个小区都有对应的载波。在一个小区组(cell group，CG)中，除了主小区可以用于发送反馈信息以外，还可以配置PUCCH小区。主小区可以用于传输该主小区上的反馈信息，也可以用于传输该CG中其他小区的反馈信息。PUCCH小区可以用于传输该PUCCH小区上的反馈信息，也可以用于传输该CG中其他小区的反馈信息。其中，通过主小区传输反馈信息的所有小区组成一个PUCCH组，通过PUCCH小区传输反馈信息的所有小区组成另一个PUCCH组。若主小区或者PUCCH小区上用于传输反馈信息的PUCCH资源不可用，如该PUCCH资源已被配置为传输下行符号，或者该PUCCH资源上存在被配置为下行传输的灵活符号，则该PUCCH资源无法用于传输反馈信息，导致网络设备指示在该PUCCH资源后的资源上发送反馈信息，从而造成反馈时延增加，或者不发送反馈信息，从而导致通信可靠性低下。
发明内容
本申请实施例提供一种反馈信息发送方法、反馈信息接收方法及装置，能够根据PCell或者PUCCH SCell上配置的PUCCH资源的情况，在除PCell或PUCCH SCell之外的其他小区上发送反馈信息，从而减小反馈时延，提高通信可靠性。
为达到上述目的，本申请采用如下技术方案：
第一方面，提供一种反馈信息发送方法，该反馈信息发送方法可以应用于终端设备。该反馈信息发送方法可以包括：终端设备确定第一载波上的第一上行资源。其中，第一上行资源用于承载下行数据信道的第一反馈信息。若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则终端设备在目标载波的第二上行资源上发送第一反馈信息。其中，目标载波与第一载波不同，目标载波为多个候选载波中的一个，第二上行资源所占用的时域符号为上行符号，和/或，未被配置 为下行传输的灵活符号。
基于第一方面提供的反馈信息发送方法，当第一上行资源不可用于传输反馈信息时，可以切换至第一载波之外的载波上传输反馈信息，能够及时传输反馈信息，从而可以降低反馈时延。通过切换载波传输反馈信息，能够实现在有上行资源的载波上传输反馈信息，从而可以提高通信的可靠性。
此外，通过切换载波传输反馈信息，可以在非指定的载波上传输反馈信息，能够提高传输反馈信息的灵活性，减少网络设备重新传输同一数据的次数，进而提高效率，降低资源开销以及功耗。
一种可能的设计方案中，第一方面提供的反馈信息发送方法还可以包括：终端设备接收第一指示信息。其中，第一指示信息指示时隙索引与目标载波索引之间的映射关系。如此，可以根据该映射关系确定目标载波，减少确定目标载波的计算过程，从而简化操作，进一步降低反馈时延。
一种可能的设计方案中，目标载波可以为多个候选载波中与第一载波的子载波间隔之差的绝对值最小的载波。
示例性地，目标载波的子载波间隔可以满足以下条件：|Δfo-Δfg|＝min(|Δfo-Δfi|)，或者，|Δμo-Δμg|＝min(|Δμo-Δμj|)。其中，Δfo为第一载波的子载波间隔，Δf为目标载波的子载波间隔，Δfi为候选载波中第i个载波的子载波间隔，i为正整数；μo为第一载波的子载波间隔配置，μg为目标载波的子载波间隔配置，μj为多个候选载波中第j个载波的子载波间隔配置，j为正整数。
一种可能的设计方案中，第一方面提供的反馈信息发送方法还可以包括：终端设备根据第一资源配置信息以及第一资源指示信息，确定第二上行资源。其中，第一资源配置信息用于指示目标载波的上行资源集合，第一资源指示信息指示上行资源集合中用于承载第一反馈信息的上行资源。如此，可以在目标载波存在PUCCH资源配置信息的情况下，从目标载波上确定出第二上行资源，以承载第一反馈信息，根据资源配置情况选择目标载波，可以确保目标载波上存在足够的上行资源承载反馈信息，从而进一步提高传输可靠性以及效率。
一种可能的设计方案中，第二上行资源与第一上行资源的时域起始位置相同，第二上行资源与第一上行资源的频域起始位置相同。如此，可以在目标载波不存在PUCCH资源配置信息的情况下，从目标载波上确定出第二上行资源，以承载第一反馈信息，根据资源配置情况选择目标载波，可以确保目标载波上存在足够的上行资源承载反馈信息，从而进一步提高传输可靠性以及效率。
示例性地，在第一载波和目标载波的子载波间隔相同时，第一上行资源的时频位置可以为第二上行资源的时频位置。
一种可能的设计方案中，若第一反馈信息和第二反馈信息在目标载波的同一时间单元内反馈，或者，若目标载波上的第三上行资源与目标载波上的第四上行资源在时域上交叠，则第一方面提供的反馈信息发送方法还可以包括：终端设备根据第一资源配置信息以及第二资源指示信息，确定第二上行资源用于承载第一反馈信息和第二反馈信息。其中，第三上行资源用于承载第一反馈信息，第四上行资源用于承载第二反馈信息。第一资源配置信息用于指示目标载波的上行资源集合，第二资源指示信息指 示上行资源集合中用于承载第二反馈信息的上行资源。如此，在同一时间单元内存在两个反馈信息的情况下，或者用于承载两个反馈信息的资源存在交叠的情况下，在第二上行资源上传输两个反馈信息，能够一次实现两个反馈信息的传输，从而可以进一步减小反馈时延，以及减少功耗。
一种可能的设计方案中，第一上行资源所在的时间单元为第一时间单元，第一方面提供的反馈信息发送方法还可以包括：终端设备将多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为目标载波。相应地，终端设备在目标载波的第二上行资源上发送第一反馈信息，可以包括：终端设备在目标载波的第二上行资源上通过上行数据信道发送第一反馈信息。如此，在上行数据信道上发送第一反馈信息，可以实现在发送上行数据信道的同时，发送第一反馈信息，可以减少传输信息的次数，从而进一步降低反馈时延，以及减少功耗。
一种可能的设计方案中，第一上行资源所在时间单元与第二上行资源所在时间单元的时域位置交叠。
一种可能的设计方案中，第二上行资源位于第一时域位置，下行数据信道所在的时域位置与第一时域位置之间间隔的时域符号的数量，满足终端设备的处理能力。如此，根据终端设备的处理能力来确定第二上行资源的时域位置，可以兼顾时延和终端设备的处理能力。
可选地，第二上行资源的时域起始位置可以为：第一时域符号中时域位置最靠前的时域符号。其中，第一时域符号为满足终端设备的处理能力的时域符号。如此，确定第一时域符号中位置最靠前的时域符号为第二上行资源的起始位置，可以尽可能早地发送反馈信息，进一步减小反馈时延。
一种可能的设计方案中，第一方面提供的反馈信息发送方法还可以包括：终端设备接收第二指示信息。其中，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在多个候选载波中确定目标载波。或者，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不发送第一反馈信息。如此，终端设备可以根据第二指示信息选择是否切换载波、或者是否发送反馈信息，以进一步提高发送反馈信息的灵活性。
第二方面，提供一种反馈信息接收方法，该反馈信息接收方法可以应用于网络设备。该反馈信息接收方法可以包括：确定第一载波上的第一上行资源。其中，第一上行资源用于承载下行数据信道的第一反馈信息。若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则网络设备在目标载波的第二上行资源上接收所述第一反馈信息。其中，目标载波与第一载波不同，目标载波为多个候选载波中的一个，第二上行资源所占用的时域符号为上行符号，和/或，未被配置为下行传输的灵活符号。
一种可能的设计方案中，第二方面提供的反馈信息接收方法还可以包括：网络设备发送第一指示信息。其中，第一指示信息指示时隙索引与目标载波索引之间的映射关系。
一种可能的设计方案中，目标载波可以为多个候选载波中与第一载波的子载波间 隔之差的绝对值最小的载波。
示例性地，目标载波的子载波间隔可以满足以下条件：|Δfo-Δfg|＝min(|Δfo-Δfi|)，或者，|Δμo-Δμg|＝min(|Δμo-Δμj|)。其中，Δfo为第一载波的子载波间隔，Δfg为目标载波的子载波间隔，Δfi为候选载波中第i个载波的子载波间隔，i为正整数；μo为第一载波的子载波间隔配置，μg为目标载波的子载波间隔配置，μj为多个候选载波中第j个载波的子载波间隔配置，j为正整数。
一种可能的设计方案中，第二方面提供的反馈信息接收方法还可以包括：网络设备根据第一资源配置信息以及第一资源指示信息，确定第二上行资源。其中，第一资源配置信息用于指示目标载波的上行资源集合，第一资源指示信息指示上行资源集合中用于承载第一反馈信息的上行资源。
一种可能的设计方案中，第二上行资源与第一上行资源的时域起始位置相同，第二上行资源与第一上行资源的频域起始位置相同。
一种可能的设计方案中，若第一反馈信息和第二反馈信息在目标载波的同一时间单元内反馈，或者，若目标载波上的第三上行资源与目标载波上的第四上行资源在时域上交叠，则第二方面提供的反馈信息接收方法还可以包括：网络设备根据第一资源配置信息以及第二资源指示信息，确定第二上行资源用于承载第一反馈信息和第二反馈信息。其中，第三上行资源用于承载第一反馈信息，第四上行资源用于承载第二反馈信息。第一资源配置信息用于指示目标载波的上行资源集合，第二资源指示信息指示上行资源集合中用于承载第二反馈信息的上行资源。
一种可能的设计方案中，第一上行资源所在的时间单元为第一时间单元，第二方面提供的反馈信息接收方法还可以包括：网络设备将多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为目标载波。相应地，网络设备在目标载波的第二上行资源上接收第一反馈信息，包括：网络设备在目标载波的第二上行资源上通过上行数据信道接收第一反馈信息。
一种可能的设计方案中，第一上行资源所在时间单元与第二上行资源所在时间单元的时域位置交叠。
一种可能的设计方案中，第二上行资源位于第一时域位置，下行数据信道所在的时域位置与第一时域位置之间间隔的时域符号的数量，满足终端设备的处理能力。
可选地，第二上行资源的时域起始位置可以为：第一时域符号中时域位置最靠前的时域符号。其中，第一时域符号为满足终端设备的处理能力的时域符号。
一种可能的设计方案中，第二方面提供的反馈信息接收方法还可以包括：网络设备发送第二指示信息。其中，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在多个候选载波中确定目标载波。或者，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不接收第一反馈信息。
此外，第二方面所述的反馈信息接收方法的技术效果可以参考第一方面所述的反馈信息发送方法的技术效果，此处不再赘述。
第三方面，提供一种通信装置，包括用于执行第一方面中任意一种实现方式所述的方法的模块。
第四方面，提供一种通信装置，包括用于执行第二方面中任意一种实现方式所述的方法的模块。
第五方面，提供一种通信装置。该通信装置包括：处理器，该处理器与存储器耦合，该处理器用于执行存储器中存储的计算机程序，以使得该通信装置执行第一方面中任意一种可能的实现方式所述的方法。
第六方面，提供一种通信装置。该通信装置包括：处理器，该处理器与存储器耦合，该处理器用于执行存储器中存储的计算机程序，以使得该通信装置执行第二方面中任意一种可能的实现方式所述的方法。
第七方面，提供一种通信装置，包括处理器和接口电路，接口电路用于接收来自通信装置之外的其它装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它装置，处理器通过逻辑电路或执行代码指令用于实现第一方面中任意一种可能的实现方式所述的方法。
第八方面，提供一种通信装置，包括处理器和接口电路，接口电路用于接收来自通信装置之外的其它装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它装置，处理器通过逻辑电路或执行代码指令用于实现第二方面中任意一种可能的实现方式所述的方法。
第九方面，提供一种通信装置，包括处理器和收发器，所述收发器用于所述通信装置和其他装置之间进行信息交互，所述处理器执行程序指令，用以执行第一方面中任意一种可能的实现方式所述的方法。
第十方面，提供一种通信装置，包括处理器和收发器，所述收发器用于所述通信装置和其他装置之间进行信息交互，所述处理器执行程序指令，用以执行第二方面中任意一种可能的实现方式所述的方法。
第十一方面，提供一种计算机可读存储介质，包括：计算机程序或指令；当该计算机程序或指令在计算机上运行时，使得该计算机执行第一方面或第二方面中任意一种可能的实现方式所述的方法。
第十二方面，提供一种计算机程序产品，包括计算机程序或指令，当该计算机程序或指令在计算机上运行时，使得该计算机执行第一方面或第二方面中任意一种可能的实现方式所述的方法。
第十三方面，提供一种通信系统，包括第三方面、第五方面、第七方面、第九方面中任一方面所述的通信装置，以及第四方面、第六方面、第八方面、第十方面中任一方面所述的通信装置。
附图说明
图1为本申请实施例提供的PUCCH组的示意图；
图2为本申请实施例提供的通信系统的架构示意图；
图3为本申请实施例提供的反馈信息发送和接收方法的流程示意图；
图4为第一上行资源与时隙的位置关系的示意图；
图5为本申请实施例提供的目标载波与时间单元的关系示意图；
图6为各个载波之间的子载波间隔的关系示意图；
图7为目标载波与上行数据信道之间的关系示意图；
图8为第二上行资源的时域位置示意图；
图9为第二上行资源的时频位置示意图一；
图10为第二上行资源的时频位置示意图二；
图11为承载不同反馈信息的资源与载波的关系示意图；
图12为第三上行资源与第四上行资源的关系示意图一；
图13为第三上行资源与第四上行资源的关系示意图二；
图14为本申请实施例提供的通信装置的结构示意图一；
图15为本申请实施例提供的通信装置的结构示意图二。
具体实施方式
以下首先介绍本申请实施例的技术术语。
1、反馈信息：终端设备在接收到网络设备发送的数据，如网络设备通过物理下行共享信道(physical downlink shared channel，PDSCH)发送的数据后，可以向网络设备发送反馈信息。该反馈信息用于指示数据是否译码成功。例如，若该数据译码成功，则反馈信息为肯定应答(acknowledgement，ACK)。若该数据译码失败，则反馈信息为否定应答(negative acknowledgement，NACK)。在HARQ机制中，ACK、NACK统称为HARQ-ACK信息。
2、时域符号(symbol)，又可以简称为符号。本申请的实施例中，时域符号可以是正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，也可以是离散傅里叶变换扩频OFDM(discrete fourier transform-spread-OFDM，DFT-s-OFDM)符号。如果没有特别说明，本申请实施例中的符号均指时域符号。
3、时隙(slot)：本申请实施例中，一个时隙包含的正交频分复用符号数为14个或12个，其符号编号可以是0到13或0到11。其中，在时域上，这些符号是连续的。
4、时间单元：一个时间单元可以包括一个或多个时隙，或者包括一个或多个时域符号。不同的子载波间隔(sub carrier spacing，SCS)下，一个时隙的时间长度不同。子载波间隔越大，时隙的时间长度越小；子载波间隔越小，时隙的时间长度越大。
子载波间隔与时隙的关系如表1所示。以下结合表1说明。例如，子载波间隔为15千赫兹(kilohertz，kHz)，则一个时隙的长度为1毫秒(millisecond，ms)。子载波间隔为30kHZ，则一个时隙的长度为0.5ms。子载波间隔为60kHZ，则一个时隙的长度为0.25ms。总而言之，载波a的子载波间隔为载波b的子载波间隔的2 u，载波a的时隙长度为载波b的时隙的长度的1/2 u，u为大于等于0的整数。为了方便理解，以下实施例中均以一个时间单元包括一个时隙为例说明。
表1
SCS 时隙
15kHZ 1ms
30kHZ 0.5ms
60kHZ 0.25ms
5、小区组、MCG、SCG、PCell、SCell、PUCCH SCell、PUCCH组。
小区组(cell group，CG)，是指由同一网络设备管理，且与同一终端设备通信的多个小区(cell)的集合。
在双连接(dual connectivity，DC)技术中，CG可以进一步分为主小区组(master cell group，MCG)和辅小区组(secondary cell group，SCG)。
MCG中，用于发起初始接入的小区，称为主小区(primary cell，PCell)，主小区之外的其他小区，称为辅小区(secondary cell，SCell)。类似地，SCG中，用于发起初始接入的小区，称为主辅小区(primary secondary cell，PSCell)，主辅小区之外的其他小区，称为辅小区。其中，MCG的PCell上可以配置PUCCH资源，SCell上也可以配置PUCCH资源。SCG的PSCell上可以配置PUCCH资源，SCell上也可以配置PUCCH资源。MCG或SCG上，配置有PUCCH资源的SCell称为PUCCH SCell。
同一CG中可以配置一个或多个PUCCH小区，用于传输反馈信息。例如，在MCG中，配置有PUCCH资源的小区可以包括如下一项或多项：PCell、或配置有PUCCH资源的SCell。又如，在SCG中，配置有PUCCH资源的小区可以包括如下一项或多项：PSCell、或配置有PUCCH资源的SCell。示例性地，配置有PUCCH资源的小区，如PCell、或PUCCH SCell上可以传输该配置有PUCCH资源的小区的反馈信息，还可以传输一个或多个其他SCell的反馈信息。
PUCCH小区以及在该PUCCH小区上发送反馈信息的SCell，称为PUCCH组(group)。图1为PUCCH组的示意图。如图1所示，以MCG为例，MCG中包括一个PCell、一个PUCCH SCell和多个SCell(SCell1-SCell4)。若PUCCH组1包括：SCell1、SCell2和PCell，则PCell、SCell1和SCell2的反馈信息在PCell上传输。具体地，若PDSCH0位于PCell的时隙2n，PDSCH1位于SCell1的时隙2n+1，PDSCH2位于SCell2时隙2(n+1)，PDSCH0、PDSCH1和PDSCH2依次对应的K1值为：3、2、1，PUCCH组1的K1集合为{1,2,3},则PDSCH0、PDSCH1和PDSCH2各自的反馈信息均在PCell的时隙2(n+1)+1上传输。若PUCCH组2包括：SCell3、SCell4和PUCCH SCell，则PUCCH SCell、SCell3和SCell4的各自的反馈信息在PUCCH SCell上传输。具体地，若PDSCH3位于PUCCH SCell的时隙2n+1，PDSCH4位于SCell3的时隙2(n+1)，PDSCH5位于SCell4时隙2n+1，PDSCH3、PDSCH4和PDSCH5依次对应的K1值为：1、1、1，则PUCCH组2的K1集合为{1,2},PDSCH3和PDSCH5各自的反馈信息在PUCCH SCell的2(n+1)上传输，PDSCH4的反馈信息在PUCCH SCell的时隙2(n+1)+1上传输。
需要说明的是，本申请实施例中，每个小区的工作带宽可以包括一个或多个部分带宽(band width part，BWP)。以下实施例中，在不做特殊说明的情况下，一个载波上的资源可以是一个小区中一个或多个部分带宽对应的资源。
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如第4代(4th generation，4G)移动通信系统，如长期演进(long term evolution，LTE)系统、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)移动通信系统，如新空口(new radio，NR)系统，以及未来的通信系统，如第六代(6th generation，6G)移动通信系统等。
本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。应当理解和明白的是，各个系统可以包括另外的设备、组件、模块等，并且/或 者可以并不包括结合附图讨论的所有设备、组件、模块等。此外，还可以使用这些方案的组合。
另外，在本申请实施例中，“示例地”、“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用示例的一词旨在以具体方式呈现概念。
本申请实施例中，“信息(information)”，“信号(signal)”，“消息(message)”，“信道(channel)”、“信令(singaling)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。“的(of)”，“相应的(corresponding，relevant)”和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。
本申请实施例中，有时候下标如W 1可能会笔误为非下标的形式如W1，在不强调其区别时，其所要表达的含义是一致的。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
图2是本申请的实施例应用的通信系统的100架构示意图。如图2所示，该通信系统包括网络设备110和核心网120，可选的，通信系统100还可以包括互联网130。其中，网络设备110可以包括至少一个无线接入网设备(如图2中的111a和111b)，还可以包括至少一个终端设备(如图2中的112a-112j)。终端设备通过无线的方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备和终端设备之间以及无线接入网设备和无线接入网设备之间可以通过有线或无线的方式相互连接。图2只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图2中未画出。
无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB，eNodeB)、发送接收点(transmission reception point，TRP)、第五代(5th generation，5G)移动通信系统中的下一代基站(next generation NodeB，gNB)、第六代(6th generation，6G)移动通信系统中的下一代基站、未来移动通信系统中的基站或WiFi系统中的接入节点等；也可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，也可以是分布式单元(distributed unit，DU)。无线接入网设备可以是宏基站(如图2中的111a)，也可以是微基站或室内站(如图2中的111b)，还可以是中继节点或施主节点等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。为了便于描述，下文以基站作为无线接入网设备的例子进行描述。
终端设备也可以称为终端、用户设备(user equipment，UE)、移动台、移动终端等。终端设备可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication， MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端设备可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
基站和终端设备可以是固定位置的，也可以是可移动的。基站和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对基站和终端设备的应用场景不做限定。
基站和终端设备的角色可以是相对的，例如，图2中的直升机或无人机112i可以被配置成移动基站，对于那些通过112i接入到网络设备110的终端设备112j来说，终端设备112i是基站；但对于基站111a来说，112i是终端设备，即111a与112i之间是通过无线空口协议进行通信的。当然，111a与112i之间也可以是通过基站与基站之间的接口协议进行通信的，此时，相对于111a来说，112i也是基站。因此，基站和终端设备都可以统一称为通信装置，图2中的111a和111b可以称为具有基站功能的通信装置，图2中的112a-112j可以称为具有终端设备功能的通信装置。
基站和终端设备之间、基站和基站之间、终端设备和终端设备之间可以通过授权频谱进行通信，也可以通过免授权频谱进行通信，也可以同时通过授权频谱和免授权频谱进行通信；可以通过6千兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线通信所使用的频谱资源不做限定。
在本申请的实施例中，基站的功能也可以由基站中的模块(如芯片)来执行，也可以由包含有基站功能的控制子系统来执行。这里的包含有基站功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述终端设备的应用场景中的控制中心。终端设备的功能也可以由终端设备中的模块(如芯片或调制解调器)来执行，也可以由包含有终端设备功能的装置来执行。
在本申请中，基站向终端设备发送下行信号或下行信息，下行信息承载在下行信道上；终端设备向基站发送上行信号或上行信息，上行信息承载在上行信道上。终端设备为了与基站进行通信，需要与基站控制的小区建立无线连接。与终端设备建立了无线连接的小区称为该终端设备的服务小区。当终端设备与该服务小区进行通信的时候，还会受到来自邻区的信号的干扰。
在本申请的实施例中，时域符号可以是正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，也可以是离散傅里叶变换扩频OFDM(Discrete Fourier Transform-spread-OFDM，DFT-s-OFDM)符号。如果没有特别说明，本申请实施例中的符号均指时域符号。
可以理解的是，本申请的实施例中，PDSCH和PUSCH只是作为下行数据信道和上行数据信道一种举例，在不同的系统和不同的场景中，数据信道和控制信道可能有不同的名称，本申请的实施例对此并不做限定。
下面将结合图3-图13对本申请实施例提供的反馈信息发送和接收方法进行具体 阐述。
示例性地，图3为本申请实施例提供的反馈信息发送和接收方法的流程示意图。该反馈信息发送和接收方法可以适用于图2所示的终端设备与网络设备之间的通信。
如图3所示，该反馈信息发送和接收方法包括如下步骤：
S301，终端设备确定第一载波上的第一上行资源。相应地，网络设备也可以确定第一载波上的第一上行资源。
示例性地，第一载波可以是PUCCH组中，用于发送反馈信息的载波或小区，如PCell、或PUCCH SCell。例如，在图1所示的PUCCH组1中，PDSCH0、PDSCH1和PDSCH 2对应的第一载波为PCell。在图1所示的PUCCH组2中，PDSCH3、PDSCH4和PDSCH 5对应的第一载波为PUCCH SCell。
其中，第一上行资源用于承载下行数据信道的第一反馈信息。
一种可能的设计方案中，步骤S301中，确定第一载波上的第一上行资源，可以包括：根据PDSCH对应的DCI以及第一载波的资源配置信息确定第一上行资源。DCI中包括时隙偏移量K1和物理上行控制信道资源指示(PUCCH resource indicator，PRI)。时隙偏移量K1用于指示：发送第一反馈信息的时间单元相对于PDSCH所在时间单元的偏移量。在本申请中，时间单元可以是时隙或子时隙。PRI用于指示：PUCCH资源集合中用于发送第一反馈信息的PUCCH资源。具体地，可以根据PDSCH的时域位置以及时隙偏移量K1确定第一上行资源所在的时隙。其中，第一上行资源位于PDSCH所在时隙后的第K1个时隙。然后，根据PRI从PUCCH资源集合中确定第一上行资源。以下结合图4说明。
图4为第一上行资源与时隙的位置关系示意图。如图4所示，PUCCH组1中包括：载波CC0、载波CC1和载波CC2。其中，载波CC0对应配置有PUCCH资源的小区，如PCell。PUCCH组2中包括：载波CC3、载波CC4和载波CC5。其中，载波CC3配置有PUCCH资源的小区对应，如PUCCH SCell。PUCCH组1的K1集合(set)为{1,2,3}，PUCCH组2的K1集合为{1,2}。若PDSCH0位于载波CC0的时隙2n上，PDSCH0对应的K1值为3，PDSCH0对应的第一上行资源PUCCH10位于载波CC0的时隙2(n+1)+1上。若载波CC0的PUCCH资源集合，包括资源索引1-资源索引10各自对应的PUCCH资源，PDSCH0对应的PRI指示的资源索引为3，则第一上行资源为资源索引3所对应的PUCCH资源。换言之，第一上行资源为资源索引3所在时频位置的资源。
[根据细则91更正 27.01.2021]　
同理，若PDSCH1位于载波CC1的时隙2n+1上，PDSCH1对应的K1值为2，则PDSCH1对应的第一上行资源PUCCH11(图4中未示出)位于载波CC0的时隙2(n+1)+1上。若PDSCH2位于载波CC2的时隙2(n+1)上，PDSCH2对应的K1值为1，则PDSCH2对应的第一上行资源PUCCH12(图4中未示出)位于载波CC0的时隙2(n+1)+1上。若PDSCH3位于载波CC3的时隙2n+1上，PDSCH3对应的K1值为1，则PDSCH3对应的反馈信息在载波CC3的时隙2(n+1)上发送，换言之，PDSCH3对应的第一上行资源PUCCH13位于载波CC3的时隙2(n+1)上。若PDSCH4位于载波CC4的时隙2(n+1)上，PDSCH4对应的K1值为1，则PDSCH4对应的反馈信息在载波CC3的时隙2(n+1)+1上发送，换言之，PDSCH4对应的第一上行资源PUCCH14位于载波 CC3的时隙2(n+1)+1上。若PDSCH5位于载波CC5的时隙2n+1上，PDSCH5对应的K1值为1，则PDSCH5对应的反馈信息在载波CC3的时隙2(n+1)上发送。换言之，PDSCH5对应的第一上行资源PUCCH15(图4中未示出)位于载波CC3的时隙2(n+1)上。
本申请实施例中，确定PDSCH1-PDSCH5中任一个对应的第一上行资源的实现，可以参考确定PDSCH0的第一上行资源的实现方式，在此不再赘述。
S302，若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则终端设备在目标载波的第二上行资源上发送第一反馈信息。相应地，网络设备在目标载波的第二上行资源上接收第一反馈信息。
其中，目标载波与第一载波不同，目标载波为多个候选载波中的一个，第二上行资源所占用的时域符号包括上行符号，和/或，未被配置为下行传输的灵活符号。
示例性地，第一上行资源所占用的时域符号中的任意一个或多个为如下多项中的任一项：下行符号、或被配置为下行传输的灵活符号。
下行符号，可以是被DCI配置为上行传输的时域符号。被配置为下行传输的灵活符号，可以是被时隙格式指示信息或者DCI配置为下行传输的灵活符号。
候选载波，可以包括第一载波所在PUCCH组中，除第一载波之外的其他载波。候选载波还可以包括第一载波所在CG中，其他PUCCH组上的载波，如PCell对应的载波或PUCCH SCell对应的载波。可以理解，本申请实施例中，一个PUCCH组中的第一载波也可以是另一个PUCCH组的候选载波。以下仍然结合图4说明。
如图4所示，以PDSCH0、PDSCH1或PDSCH2中的任一个为例，若载波CC0为第一载波，则候选载波可以包括如下一项或多项：载波CC1、载波CC2和载波CC3。以PDSCH3、PDSCH4或PDSCH5中的任一个为例，若载波CC3为第一载波，则候选载波可以包括如下一项或多项：载波CC0、载波CC4和载波CC5。
目标载波，可以是在第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号的情况下，从候选载波中选择出来，用于承载第一反馈信息的载波。
示例性地，目标载波可以根据以下一项或多项条件选择：时隙索引与目标载波索引之间的映射关系、子载波间隔、物理上行共享信道(physical up shared channel，PUSCH)、或其他反馈信息。以下结合实例说明目标载波的选择过程。
方式一，基于时隙索引与目标载波索引之间的映射关系确定目标载波。
图5为本申请实施例提供的目标载波与时隙的关系示意图。如图5所示，载波CC0、载波CC1和载波CC2的子载波间隔均为30kHZ，各个载波的时隙长度相同。若如表1所示，时隙索引与目标载波索引之间的映射关系如下：时隙2n对应载波CC1，时隙2n+1对应载波CC3，时隙2(n+1)对应载波CC1，时隙2(n+1)+1对应载波CC0。
表2
时隙索引 时隙2n 时隙2n+1 时隙2(n+1) 时隙2(n+1)+1
目标载波索引 CC1 CC3 CC1 CC0
若PDSCH0对应的K1值为1，PDSCH0对应的第一上行资源PUCCH0位于载波CC0的时隙2n+1中。由于载波CC0的时隙2n+1对应的载波索引为“CC3”，因此， PDSCH0对应的目标载波为载波CC3。同理，PDSCH1对应的K1值为1，PDSCH1对应的第一上行资源PUCCH11位于载波CC0的时隙2(n+1)中。由于时隙2(n+1)对应的目标载波索引为“CC1”，因此，PDSCH1对应的目标载波为载波CC1。
具体地，图3提供的反馈信息发送和接收方法还可以包括：网络设备向终端设备发送第一指示信息。相应地，终端设备接收第一指示信息。其中，第一指示信息指示时隙索引与目标载波索引之间的映射关系。
[根据细则91更正 27.01.2021]　
终端设备可以根据第一指示信息确定目标载波。相应地，网络设备可以根据第一指示信息确定目标载波。根据第一指示信息确定目标载波的实现方式可以参考上述方式一的实现方式，在此不再赘述。
如此，可以根据时隙索引与目标载波索引之间的映射关系确定目标载波，减少确定目标载波的计算过程，从而简化操作，进一步降低反馈的时延。
方式二，基于子载波间隔确定目标载波。
可选地，目标载波可以为多个候选载波中与第一载波的子载波间隔之差的绝对值最小的载波。也就是说，目标载波的子载波间隔满足如下一项或多项条件：
|Δfo-Δfg|＝min(|Δfo-Δfi|)，或者，
|Δμo-Δμg|＝min(|Δμo-Δμj|)。
其中，Δfo为第一载波的子载波间隔，Δfg为目标载波的子载波间隔，Δfi为候选载波中第i个载波的子载波间隔，i为正整数；μo为第一载波的子载波间隔配置，μg为目标载波的子载波间隔配置，μj为多个候选载波中第j个载波的子载波间隔配置，j为正整数。以下结合图6说明。
图6为各个载波之间的子载波间隔的关系示意图。如图6所示，PUCCH组中，包括：载波CC0、载波CC1、载波CC6和载波CC7。载波CC0的子载波间隔和载波CC1的子载波间隔为30kHZ，载波CC6的子载波间隔为60kHZ，载波CC7的子载波间隔为15kHZ。PDSCH0位于载波CC0的时隙2n上，若PDSCH0对应的K1值为2，则载波CC0上的时隙2(n+1)用于承载PDSCH0的反馈信息，换言之，PDSCH0对应的第一上行资源PUCCH10位于载波CC0上的时隙2(n+1)+1上。载波CC1的时隙2(n+1)、载波CC6的时隙4(n+1)、载波CC6的时隙4(n+1)+1和载波CC7的时隙n+1都为上行时隙。若载波CC0上的时隙2(n+1)为下行时隙，则目标载波可以为载波CC1。
上行时隙是可以用于传输反馈信息的时隙，上行时隙的时域符号可以包括如下一项或多项：上行符号、未被配置的灵活符号、或被配置为上行传输的灵活符号。
下行时隙是不可用于传输反馈信息的时隙。例如，下行时隙可以包括如下一项或多项：下行符号、或被配置为下行传输的灵活符号。
如此，可以选择与第一载波的子载波间隔最接近的候选载波作为目标载波。例如，可以选择与第一载波的子载波间隔相同的候选载波作为目标载波，从而能够简化载波索引的转换操作，进一步降低反馈时延。
方式三，基于PUSCH确定目标载波。
具体地，第一上行资源所在的时间单元为第一时间单元，图3提供的反馈信息发送和接收方法还可以包括：终端设备将多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为目标载波。相应地，网络设备将多个候选载波中， 在第一时间单元内存在被调度的上行数据信道的载波，确定为目标载波。
仍然以图6所示的PUCCH组为例，若载波CC2的时隙2(n+1)上被配置有PUSCH，则载波CC2为目标载波。又如，如图7所示，载波CC0-载波CC3的子载波间隔相等。PDSCH2的K1值为1，则PDSCH2对应的第一上行资源PUCCH12位于载波CC0的时隙2(n+1)+1内。载波CC0的时隙2(n+1)+1为下行时隙，不可发送反馈信息，载波CC1的时隙2(n+1)+1和载波CC2的时隙2(n+1)+1均为上行时隙。若载波CC1在时隙2(n+1)+1上存在被调度的PUSCH，则目标载波为载波CC1。
方式四，基于其他反馈信息确定目标载波。
如图6所示，若载波CC7的时隙n+1上存在其他反馈信息，则载波CC7为目标载波。
方式五：基于多种条件确定目标载波。
(1)示例性地，可以根据时隙索引与目标载波索引之间的映射关系、子载波间隔、PUSCH、或其他反馈信息各自的优先级确定目标载波。如图6所示，若确定目标载波的条件包括：其他反馈信息和子载波间隔，其他反馈信息的优先级高于子载波间隔的优先级，则目标载波为CC7。
[根据细则91更正 27.01.2021]　
(2)示例性地，还可以确定同时满足多种条件的候选载波作为目标载波。例如，多种条件包括：候选载波的子载波间隔与第一载波的子载波间隔相同，以及与第一反馈信息所在时隙对应的候选载波的时隙被配置有PUSCH。如图6所示，载波CC2的时隙2(n+1)上被配置有PUSCH，若PUSCH的优先级高于子载波间隔的优先级，则载波CC2为目标载波。又如，多种条件还包括载波的优先级。若载波CC1的时隙2(n+1)上和载波CC2的时隙2(n+1)上均被配置有PUSCH，载波CC2对应的优先级高于载波CC1对应的优先级，则载波CC2为目标载波。
再如，可以根据子载波间隔与载波的载波索引确定目标载波。若与第一载波的子载波间隔最接近的候选载波有两个或者更多个，则目标载波为与第一载波的子载波最接近的候选载波中，载波索引最小的一个。
本申请实施例中，所列举的用于选择目标载波的条件仅用于作示例，并不具体限定确定目标载波的条件。可以理解，在具体的实施方式中，还可以根据其他条件确定目标载波，或者，根据其他的条件组合形式确定目标载波，本申请实施例中不再赘述。
如此，根据各个候选载波的载波索引、各个候选载波的优先级、或第一上行资源所在时隙的PUSCH配置情况，从子载波间隔最接近的候选载波中确定目标载波，以简化操作，从而提高效率。
本申请实施例中，第一载波、候选载波中可以是同一个小区中的不同BWP，该小区可以是PCell或者SCell。例如，第一载波为PCell上的BWP1，候选载波为PCell上的BWP2。示例性地，第二上行资源所占用的时域符号中的每一个时域符号为如下多项中的一项：上行符号、或未被配置为下行传输的灵活符号。
未被配置为下行传输的灵活符号包括：未被配置的灵活符号、或被配置为上行传输的灵活符号。
上行符号，可以是被DCI配置为上行传输的时域符号。被配置为上行传输的灵活符号，可以是被时隙格式指示信息或者DCI配置为上行传输的灵活符号。未被配置的 灵活符号，可以是未被时隙格式指示信息或者DCI配置为下行传输或者上行传输的灵活符号。
一种可能的设计方案中，图3所示的反馈信息发送和接收方法还可以包括：终端设备确定第二上行资源所在的时间单元。相应地，网络设备也可以确定第二上行资源所在的时间单元。
示例性地，若第一载波与目标载波的子载波间隔相同，一个时间单元包括一个时隙，则第二上行资源所在时隙的时隙索引与第一上行资源所在时隙的时隙索引相同。例如，图6所示的载波CC0和载波CC2的子载波间隔相同，若CC2为目标载波，第一上行资源在载波CC0的时隙2(n+1)上，则第二上行资源在载波CC2的时隙2(n+1)上。
若目标载波的子载波间隔大于第一载波的子载波间隔，则第二上行资源为：与第一上行资源所在时隙对应的目标载波的时隙中的一个。例如，如图6所示，当目标载波为载波CC6时，载波CC6的子载波间隔为载波CC0的子载波间隔的2倍，载波CC6的时隙长度为载波CC0的时隙长度的1/2。第一上行资源位于载波CC0的时隙2(n+1)上，载波CC6上与载波CC0的时隙2(n+1)对应的时隙为：时隙4(n+1)和时隙4(n+1)+1，因此，第二上行资源位于载波CC6的时隙4(n+1)或载波CC6时隙4(n+1)+1上。
若目标载波的子载波间隔小于第一载波的子载波间隔，则第二上行资源为：目标载波上，时域位置包括第一上行资源所在时域位置的时隙上。例如，如图6所示，若目标载波为载波CC7，载波CC7的子载波间隔为载波CC0的子载波间隔的1/2，载波CC7的时隙长度为载波CC0的时隙长度的2倍，第一上行资源位于载波CC0的时隙2(n+1)上，由于载波CC0的时隙2(n+1)内包括载波CC7的时隙n+1的前七个时域符号，因此，第二上行资源位于载波CC7的时隙n+1上。
一种可能的设计方案中，第二上行资源与第一上行资源的时域起始位置相同，第二上行资源与第一上行资源的频域起始位置相同。
图8为第二上行资源的时域位置示意图。如图8所示，以子载波间隔为30kHZ的载波CC0和载波CC1的时域起始位置为例，根据PDSCH0对应的K1值3和对应的PRI确定第一上行资源PUCCH10，载波CC0的时隙2(n+1)+1为下行时隙，载波CC1的时隙2(n+1)+1为上行时隙。若第一上行资源PUCCH10的时域起始位置为ts时刻对应的时域位置，则PDSCH0对应的第二上行资源PUCCH20的时域起始位置为CC0上ts时刻对应的时域位置。若第一上行资源PUCCH10的频域起始位置为fs频点对应的频域位置，则第二上行资源PUCCH20的频域起始位置为CC1上fs频点对应的频域位置。
若第一载波与目标载波的子载波间隔相同，则第二上行资源的时域结束位置也可以与第一上行资源的时域结束位置相同。换言之，第一上行资源的时域位置与第二上行资源的时域位置重合。
如上述图4所示的载波中，若载波CC0与载波CC2的子载波间隔均为30kHZ，载波CC0的时隙2(n+1)+1为下行时隙，载波CC2的时隙2(n+1)+1为上行时隙，则PDSCH0对应的第二上行资源PUCCH20可以位于载波CC2的时隙2(n+1)+1内。
又如，上述图5所示的载波中，若载波CC0、载波CC1和载波CC2的子载波间 隔均为30kHZ，载波CC0的时隙2n+1为下行时隙，载波CC0的时隙2(n+1)为下行时隙，载波CC1的时隙2(n+1)为上行时隙，载波CC2的时隙2n+1为上行时隙，则PDSCH0对应的第二上行资源PUCCH20位于载波CC2的时隙2n+1内。或者，PDSCH1对应的第二上行资源PUCCH21位于载波CC2的时隙2(n+1)内。
图9为第二上行资源的时频位置示意图一。如图9所示，以子载波间隔为30kHZ的载波CC0和子载波间隔为30kHZ的载波CC1为例。PDSCH0对应的第一上行资源PUCCH10位于载波CC0的时隙2(n+1)上，载波CC0的时隙2(n+1)为下行时隙，载波CC1上的时隙2(n+1)为上行时隙，PDSCH0对应的第二上行资源PUCCH20可以位于载波CC1上的时隙2(n+1)上。若第一上行资源PUCCH10包括载波CC0的时隙2(n+1)上位于子载波RE0与时域符号2-时域符号7对应的资源块，则第二上行资源PUCCH20包括载波CC1的时隙2(n+1)上，子载波RE0与时域符号2-时域符号7对应的资源块。也就是说，若载波CC0的时隙2(n+1)上子载波RE0与时域符号2-时域符号7对应的资源为传输反馈信息的反馈资源，则载波CC1的时隙2(n+1)上子载波RE0与时域符号2-时域符号7对应的资源为传输反馈信息的反馈资源。
[根据细则91更正 27.01.2021]　
图10为第二上行资源的时频位置示意图二。如图10所示，以子载波间隔为30kHZ的载波CC0和子载波间隔为60kHZ的载波CC6为例。PDSCH0对应的第一上行资源PUCCH10位于载波CC0的时隙2(n+1)上，载波CC0的时隙2(n+1)为下行时隙，载波CC6上的时隙4(n+1)+1为上行时隙，则PDSCH0对应的第二上行资源PUCCH20可以位于载波CC6上的时隙4(n+1)+1上。若第一上行资源PUCCH10包括载波CC0的时隙2(n+1)上位于子载波RE0与时域符号2-时域符号7对应的资源块，则第二上行资源PUCCH20包括载波CC6的时隙4(n+1)+1上子载波RE0和时域符号2-时域符号7对应的资源块，以及子载波RE1和时域符号2-符号7对应的资源块。也就是说，若载波CC0的时隙2(n+1)上子载波RE0与时域符号2-时域符号7对应的资源为传输反馈信息的反馈资源，则载波CC6的时隙4(n+1)+1上子载波RE0和时域符号2-时域符号7对应的资源块，以及子载波RE1和时域符号2-符号7对应的资源块为传输反馈信息的反馈资源。
例如，若终端设备处理完PDSCH需要的时长为目标载波上x个时域符号对应的时长，则在第一上行资源的时域起始位置与第二上行资源的时域起始位置相同时，可以确保反馈信息在PDSCH的后第x个时域符号之后发送。
如此，在第一上行资源的时域位置之后传输反馈信息，能够使传输反馈信息的资源满足终端设备处理能力需求，从而提高传输可靠性。
一种可能的设计方案中，图3提供的反馈信息发送和接收方法还可以包括：终端设备根据第一资源配置信息以及第一资源指示信息，确定第二上行资源。相应地，网络设备根据第一资源配置信息以及第一资源指示信息，确定第二上行资源。
其中，第一资源配置信息用于指示目标载波的上行资源集合，第一资源指示信息指示上行资源集合中用于承载第一反馈信息的上行资源。以下结合图11说明。
图11为承载不同反馈信息的资源与载波的关系示意图。如图11所示，PUCCH组1包括：载波CC0-载波CC2，其中，载波CC0为第一载波。PUCCH组2包括：载波CC3-载波CC5，其中，载波CC3有PUCCH资源配置信息。若PDSCH0对应的目标载 波为载波CC3，则第一资源配置信息为载波CC3的PUCCH资源配置信息，第一资源指示信息为PDSCH0对应的PRI。
示例性地，根据第一资源配置信息以及第一资源指示信息，确定第二上行资源，可以包括：根据第一资源指示信息从目标载波的PUCCH资源集合中确定第二上行资源。
根据PDSCH0对应的PRI确定第二上行资源的实现可以参考确定第一上行资源的实现方式，在此不再赘述。
如此，可以在第一载波不存在PUCCH资源配置信息的情况下，从目标载波上确定出第二上行资源，以承载第一反馈信息，根据资源配置情况选择目标载波，可以确保目标载波上存在足够的上行资源承载反馈信息，从而进一步提高传输可靠性以及效率。
一种可能的设计方案中，若第一反馈信息和第二反馈信息在目标载波的同一时间单元内反馈，或者，若目标载波上的第三上行资源与目标载波上的第四上行资源在时域上交叠，则图3提供的反馈信息发送和接收方法还可以包括：终端设备根据第一资源配置信息以及第二资源指示信息，确定第二上行资源用于承载第一反馈信息和第二反馈信息。相应地，网络设备根据第一资源配置信息以及第二资源指示信息，确定第二上行资源用于承载第一反馈信息和第二反馈信息。
其中，第三上行资源用于承载第一反馈信息，第四上行资源用于承载第二反馈信息。第一资源配置信息用于指示目标载波的上行资源集合，第二资源指示信息指示上行资源集合中用于承载第二反馈信息的上行资源。
本申请实施例中，第三上行资源可以根据第一资源配置信息以及第一资源指示信息确定，或者，第三上行资源还可以根据第一载波上的第二资源配置信息以及第二资源指示信息确定。第四上行资源可以根据第三资源配置信息以及第三资源指示信息确定，或者，第四上行资源可以根据第四资源配置信息以及第四资源指示信息确定。总而言之，可以按照确定第二上行资源的方式确定第三上行资源和第四上行资源。关于确定第三上行资源、或第四上行资源的方案的实现可以参考确定第二上行资源的实现方式，在此不再赘述。
以下仍然结合图11说明。
图11为承载不同反馈信息的资源与载波的关系示意图。如图11所示，以第一反馈信息为PDSCH0，第二反馈信息为PDSCH3为例，载波CC3上的PUCCH资源配置信息为第一资源配置信息，载波CC3的时隙2n+1上的PDSCH1对应的DCI中的PRI为第二资源指示信息。若第二反馈信息为PDSCH3对应的反馈信息，则第二资源指示信息可以为PDSCH3对应的DCI中的PRI。PDSCH0对应的第三上行资源PUCCH30为根据PDSCH0对应的K1值3以及PDSCH0对应的PRI确定的PUCCH资源，若载波CC0上的时隙2(n+1)+1为下行时隙，载波CC3的时隙2(n+1)+1为上行时隙，则PDSCH3对应的第四上行资源PUCCH40为根据PDSCH3对应的K1值2以及PDSCH3对应的PRI确定的上行资源。以第一反馈信息为PDSCH0，第二反馈信息为PDSCH4为例，第二资源指示若载波CC0上的时隙2(n+1)+1为下行时隙，载波CC3的时隙2(n+1)+1为上行时隙，则载波CC3上的PUCCH资源配置信息为第一资源配置信息， 载波CC4的时隙2(n+1)上的PDSCH4对应的DCI中的PRI为第二资源指示信息。此时，第四上行资源可以是根据PDSCH4的K1值1以及PDSCH4对应的PRI确定的PUCCH资源。可以理解的是，若第二反馈信息为PDSCH4对应的反馈信息，则第二资源指示信息可以为PDSCH4对应的DCI中的PRI。
图12为第三上行资源与第四上行资源的关系示意图一。如图12所示，以目标载波为载波CC3为例，若载波CC3的时隙2n-时隙2(n+1)为下行行时隙，则载波CC3的时隙2(n+1)+1为上行时隙，则第一反馈信息和第二反馈信息在目标载波的同一时间单元内反馈，可以是第一反馈信息对应的第三上行资源PUCCH30在载波CC3的时隙2(n+1)+1内，第二反馈信息对应的第四上行资源PUCCH40也在载波CC3的时隙2(n+1)+1。
图13为第三上行资源与第四上行资源的关系示意图二。如图13所示，若载波CC3的时隙2n-时隙2(n+1)为下行行时隙，则载波CC3的时隙2(n+1)+1为上行时隙，则载波CC3的时隙2(n+1)+1上，第三上行资源PUCCH30与目标载波上的第四上行资源PUCCH40在时域上交叠，可以是第三上行资源PUCCH30所占用的时域符号中，存在一个或多个与第四上行资源PUCCH40的时域符号相同。
可以理解的是，第一反馈信息和第二反馈信息在目标载波的同一时间单元内反馈的情况，也可以包括目标载波上的第三上行资源与目标载波上的第四上行资源在时域上交叠的情况。
如此，在同一时间单元内存在两个反馈信息，或者两个反馈信息存在交叠的情况下，在第二上行资源上传输两个反馈信息，能够一次传输两个反馈信息，从而可以进一步减小反馈时延。若目标载波为根据PUSCH确定的载波，则第二上行资源可以包括PUSCH所占用的时域符号。终端设备在目标载波的第二上行资源上发送第一反馈信息，可以包括：终端设备在目标载波的第二上行资源上通过上行数据信道发送第一反馈信息。相应地，网络设备在目标载波的第二上行资源上接收第一反馈信息，可以包括：网络设备在目标载波的第二上行资源上通过上行数据信道接收第一反馈信息。
如此，在上行数据信道上发送第一反馈信息。在发送上行数据信道的同时，发送第一反馈信息，可以减少传输信息的次数，从而进一步降低反馈时延，以及减少功耗。
一种可能的设计方案中，第一上行资源所在时间单元与第二上行资源所在时间单元的时域位置交叠。
示例性地，第一上行资源的时域符号与第二上行资源的时域符号中，存在持续时间相同的时域符号。
如此，可以缩小第二上行资源与第一上行资源的起始时域之间间隔的时域符号数量，进一步减小反馈时延。
一种可能的设计方案中，第二上行资源位于第一时域位置，下行数据信道所在的时域位置与第一时域位置之间间隔的时域符号的数量，满足终端设备的处理能力。
第一时域位置，可以是第二上行资源的时域符号占用的时域资源。
关于终端设备的处理能力，可以参考已有的终端设备的处理能力的实现方式，在此不再赘述。
如此，根据终端设备的处理能力来确定第二上行资源的时域位置，可以兼顾时延 和终端设备的处理能力，避免资源空闲，降低资源浪费。
可选地，第二上行资源的时域起始位置可以为：第一时域符号中时域位置最靠前的时域符号。其中，第一时域符号为满足终端设备的处理能力的时域符号。
如此，确定第一时域符号中位置最靠前的时域符号为第二上行资源的起始位置，可以尽可能早地发送反馈信息，进一步减小反馈时延。
一种可能的设计方案中，图3提供的反馈信息发送和接收方法还可以包括：网络设备发送第二指示信息。相应地，终端设备接收第二指示信息。
其中，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在多个候选载波中确定目标载波。或者，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不发送第一反馈信息。或者，第二指示信息指示：若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不接收第一反馈信息。
示例性地，若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则终端设备在多个候选载波中确定目标载波。相应地，网络设备也可以在多个候选载波中确定目标载波。若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则终端设备可以不发送第一反馈信息。相应地，网络设备也可以不接收第一反馈信息。
第二指示信息可以开关的方式实现，也可以参数的方式实现，还可以参数与数值结合的方式实现。例如，若第二指示信息为指示“开”的开启信号，则终端设备在第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号时，在多个候选载波中确定目标载波。或者，第二指示信息为指示“关”的关闭信号，则终端设备在第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号时，不发送第一反馈信息。
如此，终端设备可以根据第二指示信息选择是否切换载波、或者是否发送反馈信息，以进一步提高发送反馈信息的灵活性。
本申请实施例中，对第二指示信息的实现方式不作具体限定。
基于图3提供的反馈信息发送和接收方法，当第一上行资源不可用于传输反馈信息时，可以切换至第一载波之外的目标载波上传输反馈信息，能够及时传输反馈信息，从而可以降低反馈时延。通过切换载波传输反馈信息，能够实现在有上行资源的载波上传输反馈信息，从而可以提高反馈信息传输的可靠性。
此外，通过切换载波传输反馈信息，可以在非指定的载波上传输反馈信息，提高传输反馈信息的灵活性，减少基站重新传输同一数据的次数，进而提高效率，降低资源开销以及功耗。以上结合图3-图13详细说明了本申请实施例提供的反馈信息传输方法。以下结合图14-图15详细说明用于执行本申请实施例提供的反馈信息发送方法的通信装置。
图14和图15为本申请的实施例提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法实施例中终端设备或网络设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请的实施例中，该通信装置可以是如图2所示 的终端设备或网络设备，还可以是应用于终端设备或网络设备的模块(如芯片)。
如图14所示，通信装置1400包括：处理模块1401和收发模块1402。通信装置1400用于实现上述图3所示的方法实施例中终端设备或网络设备的功能。
当通信装置1400用于实现图3所示的方法实施例中终端设备的功能时：处理模块1401用于执行图3中终端设备的数据处理和逻辑判断功能；收发模块1402用于执行图3中终端设备的信息收发功能。
当通信装置1400用于实现图3所示的方法实施例中网络设备的功能时：处理模块1401，用于执行图3中网络设备的数据处理和逻辑判断功能；收发模块1402用于执行图3中网络设备的信息收发功能。
有关上述处理模块1401和收发模块1402更详细的描述可以直接参考图3所示的方法实施例中相关描述直接得到，这里不加赘述。
[根据细则91更正 27.01.2021]　
如图15所示，通信装置1500包括处理器1501和接口电路1502。处理器1501和接口电路1502之间相互耦合。可以理解的是，接口电路1502可以为收发器或输入输出接口。可选的，通信装置1500还可以包括存储器1503，用于存储处理器1501执行的指令或存储处理器1501运行指令所需要的输入数据或存储处理器1501运行指令后产生的数据。
[根据细则91更正 27.01.2021]　
当通信装置1500用于实现图3所示的方法时，处理器1501用于实现上述处理模块1401的功能，接口电路1502用于实现上述收发模块1402的功能。
当上述通信装置为应用于终端设备的芯片时，该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是网络设备发送给终端设备的；或者，该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息，该信息是终端设备发送给网络设备的。
当上述通信装置为应用于网络设备的芯片时，该网络设备芯片实现上述方法实施例中网络设备的功能。该网络设备芯片从网络设备中的其它模块(如射频模块或天线)接收信息，该信息是终端设备发送给网络设备的；或者，该网络设备芯片向网络设备中的其它模块(如射频模块或天线)发送信息，该信息是网络设备发送给终端设备的。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其它通用处理器、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)或者其它可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器、闪存、只读存储器、可编程只读存储器、可擦除可编程只读存储器、电可擦除可编程只读存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于 网络设备或终端设备中。当然，处理器和存储介质也可以作为分立组件存在于网络设备或终端设备中。
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程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请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、网络设备、用户设备或者其它可编程装置。所述计算机程序或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，所述计算机程序或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或无线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集成一个或多个可用介质的服务器、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；也可以是光介质，例如，数字视频光盘；还可以是半导体介质，例如，固态硬盘。该计算机可读存储介质可以是易失性或非易失性存储介质，或可包括易失性和非易失性两种类型的存储介质。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。在本申请的文字描述中，字符“/”，一般表示前后关联对象是一种“或”的关系；在本申请的公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。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。

Claims (57)

  1. 一种反馈信息发送方法，其特征在于，应用于终端设备，所述方法包括：
    确定第一载波上的第一上行资源，其中，所述第一上行资源用于承载下行数据信道的第一反馈信息；
    若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在目标载波的第二上行资源上发送所述第一反馈信息，其中，所述目标载波与所述第一载波不同，所述目标载波为多个候选载波中的一个，所述第二上行资源所占用的时域符号为上行符号，和/或，未被配置为下行传输的灵活符号。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收第一指示信息，所述第一指示信息指示时隙索引与目标载波索引之间的映射关系。
  3. 根据权利要求1所述的方法，其特征在于，所述目标载波为所述多个候选载波中与所述第一载波的子载波间隔之差的绝对值最小的载波。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，所述方法还包括：
    根据第一资源配置信息以及第一资源指示信息，确定所述第二上行资源；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第一资源指示信息指示所述上行资源集合中用于承载所述第一反馈信息的上行资源。
  5. 根据权利要求1-3中任一项所述的方法，其特征在于，所述第二上行资源与所述第一上行资源的时域起始位置相同，所述第二上行资源与所述第一上行资源的频域起始位置相同。
  6. 根据权利要求1-3中任一项所述的方法，其特征在于，若所述第一反馈信息和第二反馈信息在所述目标载波的同一时间单元内反馈；或者，
    若所述目标载波上的第三上行资源与所述目标载波上的第四上行资源在时域上交叠，其中，所述第三上行资源用于承载所述第一反馈信息，所述第四上行资源用于承载所述第二反馈信息；所述方法还包括：
    根据第一资源配置信息以及第二资源指示信息，确定所述第二上行资源用于承载所述第一反馈信息和所述第二反馈信息；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第二资源指示信息指示所述上行资源集合中用于承载所述第二反馈信息的上行资源。
  7. 根据权利要求1所述的方法，其特征在于，所述第一上行资源所在的时间单元为第一时间单元，所述方法还包括：
    将所述多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为所述目标载波；
    所述在目标载波的第二上行资源上发送所述第一反馈信息，包括：
    在所述目标载波的第二上行资源上通过所述上行数据信道发送所述第一反馈信息。
  8. 根据权利要求1-7中任一项所述的方法，其特征在于，所述第一上行资源所在时间单元与所述第二上行资源所在时间单元的时域位置交叠。
  9. 根据权利要求1-8中任一项所述的方法，其特征在于，所述第二上行资源位于第一时域位置，所述下行数据信道所在的时域位置与所述第一时域位置之间间隔的时 域符号的数量，满足所述终端设备的处理能力。
  10. 根据权利要求9所述的方法，其特征在于，所述第二上行资源的时域起始位置为：第一时域符号中时域位置最靠前的时域符号；
    其中，所述第一时域符号为满足所述终端设备的处理能力的时域符号。
  11. 根据权利要求1-10中任一项所述的方法，其特征在于，所述方法还包括：
    接收第二指示信息，其中，所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在所述多个候选载波中确定所述目标载波；或者，
    所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不发送所述第一反馈信息。
  12. 一种反馈信息接收方法，其特征在于，应用于网络设备，所述方法包括：
    确定第一载波上的第一上行资源，其中，所述第一上行资源用于承载下行数据信道的第一反馈信息；
    若第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在目标载波的第二上行资源上接收所述第一反馈信息，其中，所述目标载波与所述第一载波不同，所述目标载波为多个候选载波中的一个，所述第二上行资源所占用的时域符号为上行符号，和/或，未被配置为下行传输的灵活符号。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    发送第一指示信息，所述第一指示信息指示时隙索引与目标载波索引之间的映射关系。
  14. 根据权利要求12所述的方法，其特征在于，所述目标载波为所述多个候选载波中与所述第一载波的子载波间隔之差的绝对值最小的载波。
  15. 根据权利要求12-14中任一项所述的方法，其特征在于，所述方法还包括：
    根据第一资源配置信息以及第一资源指示信息，确定所述第二上行资源；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第一资源指示信息指示所述上行资源集合中用于承载所述第一反馈信息的上行资源。
  16. 根据权利要求12-14中任一项所述的方法，其特征在于，所述第二上行资源与所述第一上行资源的时域起始位置相同，所述第二上行资源与所述第一上行资源的频域起始位置相同。
  17. 根据权利要求12-14中任一项所述的方法，其特征在于，若所述第一反馈信息和第二反馈信息在所述目标载波的同一时间单元内反馈；或者，
    若所述目标载波上的第三上行资源与所述目标载波上的第四上行资源在时域上交叠，其中，所述第三上行资源用于承载所述第一反馈信息，所述第四上行资源用于承载所述第二反馈信息；所述方法还包括：
    根据第一资源配置信息以及第二资源指示信息，确定所述第二上行资源用于承载所述第一反馈信息和所述第二反馈信息；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第二资源指示信息指示所述上行资源集合中用于承载所述第二反馈信息的上行资源。
  18. 根据权利要求12所述的方法，其特征在于，所述第一上行资源所在的时间单 元为第一时间单元，所述方法还包括：
    将所述多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为所述目标载波；
    所述在目标载波的第二上行资源上接收所述第一反馈信息，包括：
    在所述目标载波的第二上行资源上通过所述上行数据信道接收所述第一反馈信息。
  19. 根据权利要求12-18中任一项所述的方法，其特征在于，所述第一上行资源所在时间单元与所述第二上行资源所在时间单元的时域位置交叠。
  20. 根据权利要求12-19中任一项所述的方法，其特征在于，所述第二上行资源位于第一时域位置，所述下行数据信道所在的时域位置与所述第一时域位置之间间隔的时域符号的数量，满足所述终端设备的处理能力。
  21. 根据权利要求20所述的方法，其特征在于，所述第二上行资源的时域起始位置为：第一时域符号中时域位置最靠前的时域符号；
    其中，所述第一时域符号为满足所述终端设备的处理能力的时域符号。
  22. 根据权利要求12-21中任一项所述的方法，其特征在于，所述方法还包括：
    发送第二指示信息，其中，所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在所述多个候选载波中确定所述目标载波；或者，
    所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不接收所述第一反馈信息。
  23. 一种通信装置，其特征在于，应用于终端设备，所述装置包括：处理模块和收发模块；
    处理模块，用于确定第一载波上的第一上行资源，其中，所述第一上行资源用于承载下行数据信道的第一反馈信息；
    所述处理模块，还用于确定第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号；
    所述收发模块，用于在目标载波的第二上行资源上发送所述第一反馈信息，其中，所述目标载波与所述第一载波不同，所述目标载波为多个候选载波中的一个，所述第二上行资源所占用的时域符号为上行符号，和/或，未被配置为下行传输的灵活符号。
  24. 根据权利要求23所述的装置，其特征在于，
    所述收发模块，还用于接收第一指示信息，所述第一指示信息指示时隙索引与目标载波索引之间的映射关系。
  25. 根据权利要求23所述的装置，其特征在于，所述目标载波为所述多个候选载波中与所述第一载波的子载波间隔之差的绝对值最小的载波。
  26. 根据权利要求23-25中任一项所述的装置，其特征在于，
    所述处理模块，还用于根据第一资源配置信息以及第一资源指示信息，确定所述第二上行资源；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第一资源指示信息指示所述上行资源集合中用于承载所述第一反馈信息的上行资源。
  27. 根据权利要求23-25中任一项所述的装置，其特征在于，所述第二上行资源 与所述第一上行资源的时域起始位置相同，所述第二上行资源与所述第一上行资源的频域起始位置相同。
  28. 根据权利要求23-25中任一项所述的装置，其特征在于，
    所述处理模块，还用于确定所述第一反馈信息和第二反馈信息在所述目标载波的同一时间单元内反馈；或者，
    所述目标载波上的第三上行资源与所述目标载波上的第四上行资源在时域上交叠，其中，所述第三上行资源用于承载所述第一反馈信息，所述第四上行资源用于承载所述第二反馈信息；
    所述处理模块，还用于根据第一资源配置信息以及第二资源指示信息，确定所述第二上行资源用于承载所述第一反馈信息和所述第二反馈信息；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第二资源指示信息指示所述上行资源集合中用于承载所述第二反馈信息的上行资源。
  29. 根据权利要求23所述的装置，其特征在于，所述第一上行资源所在的时间单元为第一时间单元；
    所述处理模块，还用于将所述多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为所述目标载波；
    所述收发模块，还用于在所述目标载波的第二上行资源上通过所述上行数据信道发送所述第一反馈信息。
  30. 根据权利要求23-29中任一项所述的装置，其特征在于，所述第一上行资源所在时间单元与所述第二上行资源所在时间单元的时域位置交叠。
  31. 根据权利要求23-30中任一项所述的装置，其特征在于，所述第二上行资源位于第一时域位置，所述下行数据信道所在的时域位置与所述第一时域位置之间间隔的时域符号的数量，满足所述终端设备的处理能力。
  32. 根据权利要求31所述的通信装置，其特征在于，所述第二上行资源的时域起始位置为：第一时域符号中时域位置最靠前的时域符号；
    其中，所述第一时域符号为满足所述终端设备的处理能力的时域符号。
  33. 根据权利要求23-32中任一项所述的装置，其特征在于，
    所述收发模块，还用于接收第二指示信息，其中，所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在所述多个候选载波中确定所述目标载波；或者，
    所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不发送所述第一反馈信息。
  34. 一种通信装置，其特征在于，应用于网络设备，所述装置包括：处理模块和收发模块；
    所述处理模块，用于确定第一载波上的第一上行资源，其中，所述第一上行资源用于承载下行数据信道的第一反馈信息；
    所述处理模块，还用于确定第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号；
    所述收发模块，用于在目标载波的第二上行资源上接收所述第一反馈信息，其中， 所述目标载波与所述第一载波不同，所述目标载波为多个候选载波中的一个，所述第二上行资源所占用的时域符号为上行符号，和/或，未被配置为下行传输的灵活符号。
  35. 根据权利要求34所述的装置，其特征在于，
    所述收发模块，还用于发送第一指示信息，所述第一指示信息指示时隙索引与目标载波索引之间的映射关系。
  36. 根据权利要求34所述的装置，其特征在于，所述目标载波为所述多个候选载波中与所述第一载波的子载波间隔之差的绝对值最小的载波。
  37. 根据权利要求34-36中任一项所述的装置，其特征在于，
    所述处理模块，还用于根据第一资源配置信息以及第一资源指示信息，确定所述第二上行资源；
    其中，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第一资源指示信息指示所述上行资源集合中用于承载所述第一反馈信息的上行资源。
  38. 根据权利要求34-36中任一项所述的装置，其特征在于，所述第二上行资源与所述第一上行资源的时域起始位置相同，所述第二上行资源与所述第一上行资源的频域起始位置相同。
  39. 根据权利要求34-36中任一项所述的装置，其特征在于，
    所述处理模块，还用于确定所述第一反馈信息和第二反馈信息在所述目标载波的同一时间单元内反馈；或者，
    所述目标载波上的第三上行资源与所述目标载波上的第四上行资源在时域上交叠，其中，所述第三上行资源用于承载所述第一反馈信息，所述第四上行资源用于承载所述第二反馈信息；
    所述处理模块，还用于根据第一资源配置信息以及第二资源指示信息，确定所述第二上行资源用于承载所述第一反馈信息和所述第二反馈信息，所述第一资源配置信息用于指示所述目标载波的上行资源集合，所述第二资源指示信息指示所述上行资源集合中用于承载所述第二反馈信息的上行资源。
  40. 根据权利要求34所述的装置，其特征在于，所述第一上行资源所在的时间单元为第一时间单元；
    所述处理模块，用于将所述多个候选载波中，在第一时间单元内存在被调度的上行数据信道的载波，确定为所述目标载波；
    所述收发模块，还用于在所述目标载波的第二上行资源上通过所述上行数据信道接收所述第一反馈信息。
  41. 根据权利要求34-40中任一项所述的装置，其特征在于，所述第一上行资源所在时间单元与所述第二上行资源所在时间单元的时域位置交叠。
  42. 根据权利要求34-41中任一项所述的装置，其特征在于，所述第二上行资源位于第一时域位置，所述下行数据信道所在的时域位置与所述第一时域位置之间间隔的时域符号的数量，满足终端设备的处理能力。
  43. 根据权利要求42所述的通信装置，其特征在于，所述第二上行资源的时域起始位置为：第一时域符号中时域位置最靠前的时域符号；
    其中，所述第一时域符号为满足所述终端设备的处理能力的时域符号。
  44. 根据权利要求34-43中任一项所述的装置，其特征在于，
    所述收发模块，还用于发送第二指示信息，其中，所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则在所述多个候选载波中确定所述目标载波；或者，
    所述第二指示信息指示：若所述第一上行资源所占用的时域符号包括下行符号，和/或，被配置为下行传输的灵活符号，则不接收所述第一反馈信息。
  45. 一种通信装置，其特征在于，包括用于执行如权利要求1-11中任一项所述的方法的模块。
  46. 一种通信装置，其特征在于，包括用于执行如权利要求12-22中任一项所述的方法的模块。
  47. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合；
    所述处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1-11中任一项所述的方法。
  48. 一种通信装置，其特征在于，包括：处理器，所述处理器与存储器耦合；
    所述处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求12-22中任一项所述的方法。
  49. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述通信装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1-11中任一项所述的方法。
  50. 一种通信装置，其特征在于，包括处理器和接口电路，所述接口电路用于接收来自所述通信装置之外的其它装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求12-22中任一项所述的方法。
  51. 一种通信装置，其特征在于，包括处理器和收发器，所述收发器用于所述通信装置和其他装置之间进行信息交互，所述处理器执行程序指令，用以执行如权利要求1-11中任一项所述的方法。
  52. 一种通信装置，其特征在于，包括处理器和收发器，所述收发器用于所述通信装置和其他装置之间进行信息交互，所述处理器执行程序指令，用以执行如权利要求12-22中任一项所述的方法。
  53. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1-11中任一项所述的方法。
  54. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求12-22中任一项所述的方法。
  55. 一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机执行如权利要求1-11中任一项所述的方法。
  56. 一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机执行如权利要求12-22中任一项所述的方法。
  57. 一种通信系统，包括如权利要求34-44或46、48、50、52中任一项所述的通信装置，以及如权利要求23-33或45、47、49、51中任一项所述的通信装置。
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