WO2022151407A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2022151407A1
WO2022151407A1 PCT/CN2021/072286 CN2021072286W WO2022151407A1 WO 2022151407 A1 WO2022151407 A1 WO 2022151407A1 CN 2021072286 W CN2021072286 W CN 2021072286W WO 2022151407 A1 WO2022151407 A1 WO 2022151407A1
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WO
WIPO (PCT)
Prior art keywords
carrier
time unit
pucch
terminal
carriers
Prior art date
Application number
PCT/CN2021/072286
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English (en)
French (fr)
Inventor
李军
焦淑蓉
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/CN2021/072286 priority Critical patent/WO2022151407A1/zh
Publication of WO2022151407A1 publication Critical patent/WO2022151407A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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 wireless communication, and in particular, to a communication method and apparatus.
  • a network device may configure multiple carriers for the terminal, each carrier may correspond to a cell, and the multiple carriers are included in at least one physical uplink control channel (PUCCH) group (PUCCH group).
  • PUCCH group physical uplink control channel
  • one carrier in one PUCCH group can be used to transmit the PUCCH.
  • the terminal can communicate with the network device through the multiple carriers. For example, the terminal receives configuration information from the network device through any one of the multiple carriers, where the configuration information is used to configure at least one PUCCH. After receiving the configuration information, the terminal may send at least one PUCCH to the network device according to the configuration information.
  • the PUCCH can carry channel state information (channel state information, CSI), scheduling request (scheduling request, SR) or hybrid automatic repeat response (hybrid automatic repeat request acknowledgement, HARQ-ACK) message and so on.
  • TDD time division duplex
  • the present application provides a communication method and apparatus, which can reduce the time delay for a terminal to send a PUCCH.
  • an embodiment of the present application provides a communication method, the method comprising: a terminal receiving first indication information from a network device, where the first indication information is used to indicate multiple carriers for communication between the terminal and the network device; the terminal Perform N repeated PUCCH transmissions on at least one carrier among the multiple carriers, wherein the at least one carrier includes a first carrier, and the time unit of the Nth PUCCH transmission carrying the terminal is a candidate for the first carrier.
  • the time unit of N times of PUCCH transmission, the first carrier is the carrier with the earliest end position in the time unit of the multiple carriers that carry the candidate Nth PUCCH transmission of the terminal, and N is an integer greater than 1.
  • the terminal may, among the multiple carriers indicated by the network device, determine the carrier with the earliest end position in the time unit of the candidate Nth PUCCH transmission of the terminal as the carrier for performing N repeated PUCCH transmissions so that the terminal can complete N repeated PUCCH transmissions as soon as possible and reduce the delay of PUCCH transmission.
  • the time units that carry the N times of PUCCH transmissions of the terminal are located on the same carrier. Based on the above method, the terminal can transmit N times of PUCCH repeatedly through one carrier, so that the terminal can complete N times of PUCCH repeated transmission as soon as possible, and reduce the delay of PUCCH transmission.
  • the carrier with the earliest end position in the time unit that carries the candidate Nth PUCCH transmission of the terminal has at least two carriers, and the first carrier is one of the at least two carriers, Identify the smallest carrier.
  • the terminal may further determine the number of PUCCH repeated transmissions N times according to the identifier. a carrier.
  • the at least one carrier further includes a second carrier
  • the time unit of the nth PUCCH transmission carrying the terminal is the time unit of the candidate nth PUCCH transmission on the second carrier
  • the second carrier is the carrier with the earliest end position in the time unit of the candidate nth PUCCH transmission of the terminal among the multiple carriers
  • n is an integer greater than or equal to 1 and less than N.
  • the carrier with the earliest end position in the time unit that carries the candidate nth PUCCH transmission of the terminal has at least two carriers.
  • the carrier of the time unit of PUCCH transmission, the second carrier is the carrier of the time unit of the (n-1)th PUCCH transmission, and n is an integer greater than or equal to 2 and less than N.
  • the lengths of the time units carrying the PUCCH on each of the at least one carrier are the same. Based on the above method, the complexity of network devices and terminals can be reduced.
  • the repetition times of the PUCCH on each carrier are the same. Based on the above method, the complexity of network devices and terminals can be reduced.
  • the PUCCH is carried on a corresponding symbol in the time unit, and the corresponding symbol is an uplink symbol or a flexible symbol. Based on the above method, the terminal can transmit the PUCCH on the symbol carried by the PUCCH and corresponding to the time unit.
  • the method further includes: the terminal receives second indication information from the network device, where the second indication information is used to indicate whether the terminal is to perform repeated PUCCH transmission with one or more carriers. Based on the above method, the terminal may determine, according to the second indication information, whether to perform repeated transmission of the PUCCH for N times through one carrier, or to perform the repeated transmission of the PUCCH for N times through multiple carriers.
  • an embodiment of the present application provides a communication method.
  • the method includes: a network device sends first indication information to a terminal, where the first indication information is used to indicate multiple carriers through which the terminal communicates with the network device; Perform N repeated PUCCH receptions on at least one carrier among the multiple carriers, wherein the at least one carrier includes a first carrier, and the time unit of the Nth PUCCH reception that carries the network device is a candidate for the first carrier.
  • the time unit of N times of PUCCH reception, the first carrier is the carrier with the earliest end position in the time unit of the Nth PUCCH reception of the candidate Nth PUCCH reception among the multiple carriers, and N is an integer greater than 1.
  • the network device may, among the multiple carriers indicated by the network device, determine the carrier with the earliest end position in the time unit of the Nth PUCCH reception candidate of the network device as the carrier for performing the N times of PUCCH Repeatedly received carriers, so that the network device can complete N repeated PUCCH receptions as soon as possible, and reduce the delay of PUCCH reception.
  • the time units of the N times of PUCCH receptions carrying the network device are located on the same carrier. Based on the above method, the network device can perform N times of repeated PUCCH reception through one carrier, so that the network device can complete the N times of repeated PUCCH reception as soon as possible and reduce the delay of PUCCH reception.
  • the carrier with the earliest end position in the time unit that carries the candidate Nth PUCCH reception of the network device has at least two carriers, and the first carrier is one of the at least two carriers. , which identifies the smallest carrier.
  • the network device may further determine to repeat the N times of PUCCH according to the identifier. received a carrier.
  • the at least one carrier further includes a second carrier
  • the time unit of the n-th PUCCH reception carrying the network device is the time unit of the candidate n-th PUCCH reception on the second carrier.
  • the carrier is the carrier with the earliest end position in the time unit of the candidate nth PUCCH reception of the network device among the multiple carriers, and n is an integer greater than or equal to 1 and less than N.
  • the network device can determine one carrier.
  • the end time of the number of PUCCH receptions performed by the network device on the carrier corresponding to the carrier is the earliest among multiple carriers, so that the network device can complete N repeated PUCCH receptions as soon as possible and reduce the delay of PUCCH reception.
  • the carrier with the earliest end position in the time unit of the candidate nth PUCCH reception of the network device has at least two carriers, if the at least two carriers include the carrier that carries the (() n-1)
  • the carrier of the time unit of PUCCH reception, the second carrier is the carrier of the time unit of the (n-1)th PUCCH reception, and n is an integer greater than or equal to 2 and less than N.
  • the lengths of the time units carrying the PUCCH on each of the at least one carrier are the same. Based on the above method, the complexity of network devices and terminals can be reduced.
  • the repetition times of the PUCCH on each carrier are the same. Based on the above method, the complexity of network devices and terminals can be reduced.
  • the PUCCH is carried on a corresponding symbol in the time unit, and the corresponding symbol is an uplink symbol or a flexible symbol.
  • the network device may perform PUCCH reception on the symbol corresponding to the time domain position of the PUCCH in the time unit.
  • the method further includes: the network device sends second indication information to the terminal, where the second indication information is used to indicate whether the terminal performs the repeated transmission of the PUCCH by one or more carriers.
  • the network device can indicate the number of carriers for repeated PUCCH transmission, so that the terminal can determine, according to the indication, whether to perform N times of PUCCH repeated transmission through one carrier or N times of PUCCH repeated transmission through multiple carriers.
  • an embodiment of the present application provides a communication apparatus, which can implement the method in the first aspect or any possible implementation manner of the first aspect.
  • the apparatus comprises corresponding units or components for carrying out the above-described method.
  • the units included in the apparatus may be implemented by software and/or hardware.
  • the apparatus may be, for example, a terminal, or a chip, a chip system, or a processor that can support the terminal to implement the above method.
  • an embodiment of the present application provides a communication apparatus, which can implement the method in the second aspect or any possible implementation manner of the second aspect.
  • the apparatus comprises corresponding units or components for carrying out the above-described method.
  • the units included in the apparatus may be implemented by software and/or hardware.
  • the apparatus may be, for example, a network device, or a chip, a chip system, or a processor that can support the network device to implement the above method.
  • an embodiment of the present application provides a communication device, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, when the program or the instruction is executed by the processor , so that the apparatus implements the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a communication device, including: a processor, the processor is coupled to a memory, and the memory is used to store a program or an instruction, when the program or instruction is executed by the processor , so that the device implements the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication device, where the device is configured to implement the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a communication device, where the device is configured to implement the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to perform the above-mentioned first aspect, or any possibility of the first aspect method described in the implementation of .
  • an embodiment of the present application provides a computer-readable medium on which a computer program or instruction is stored, and when the computer program or instruction is executed, enables a computer to execute the second aspect or any possibility of the second aspect. method described in the implementation of .
  • an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code is run on a computer, enables the computer to execute the first aspect or any of the possible aspects of the first aspect. Implement the method described in the method.
  • an embodiment of the present application provides a computer program product, which includes computer program code, and when the computer program code runs on a computer, the computer program code enables the computer to execute the second aspect or any of the possible second aspects. Implement the method described in the method.
  • an embodiment of the present application provides a chip, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor , so that the chip implements the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a chip, including: a processor, where the processor is coupled to a memory, and the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor , so that the chip implements the method described in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication system.
  • the system includes the device described in the third aspect and/or the device described in the fourth aspect, or the system includes the device described in the fifth aspect and/or the device described in the sixth aspect, or the system It includes the device of the seventh aspect and/or the device of the eighth aspect, or the system includes the chip of the thirteenth aspect and/or the chip of the fourteenth aspect.
  • any of the communication devices, chips, computer-readable media, computer program products or communication systems provided above are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be achieved. Referring to the beneficial effects in the corresponding method, details are not repeated here.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart 1 of a communication method provided by an embodiment of the present application.
  • 4A is a schematic diagram 1 of time units on carrier 1, carrier 2, and carrier 3 provided by an embodiment of the present application;
  • FIG. 4B is a second schematic diagram of time units on carrier 1, carrier 2, and carrier 3 according to an embodiment of the present application;
  • FIG. 5 is a schematic diagram 3 of time units on carrier 1, carrier 2, and carrier 3 provided in an embodiment of the present application;
  • FIG. 6 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication system may be a long term evolution (LTE) system, a fifth generation (5G) communication system, a wireless-fidelity (WiFi) system, a third generation partnership project (3rd generation) Partnership project, 3GPP) related communication systems, future evolutionary communication systems, or systems that integrate multiple systems, etc., are not limited.
  • 5G can also be called new radio (NR).
  • NR new radio
  • FIG. 1 it is a schematic structural diagram of a communication system 10 according to an embodiment of the present application.
  • the communication system 10 may include one or more network devices 101 (only one is shown) and terminals 102 to 104 that can communicate with the network device 101 .
  • FIG. 1 is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solutions provided in the present application.
  • a network device may provide a wireless access service for a terminal.
  • each network device corresponds to a service coverage area, and a terminal entering the area can communicate with the network device through the Uu port to receive wireless access services provided by the network device.
  • the service coverage area may include one or more cells.
  • the terminal and the network device can communicate through the Uu port link. Wherein, according to the direction of the data transmitted on the Uu interface link, it can be divided into an uplink (uplink, UL) and a downlink (downlink, DL).
  • the uplink data sent from the terminal to the network device can be transmitted on the UL, and the downlink data sent from the network device to the terminal can be transmitted on the DL.
  • the terminal 103 is located in the coverage area of the network device 101, the network device 101 can send downlink data to the terminal 103 through DL, and the terminal 103 can send uplink data to the network device 101 through UL.
  • the network device in this embodiment of the present application may be any device with a wireless transceiver function. Including but not limited to: evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, base station (gNodeB or gNB) or transceiver point (transmission receiving point/transmission receiving point, TRP) in NR, 3GPP Subsequent evolution of base stations, access nodes in WiFi systems, wireless relay nodes, wireless backhaul nodes, etc.
  • the base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, or a balloon station, etc.
  • the network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the network device may also be a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU).
  • the device for implementing the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device or combined with the network device Match use.
  • the following description takes the network device as the base station as an example.
  • the multiple network devices may be base stations of the same type, or may be base stations of different types.
  • the base station can communicate with the terminal, and can also communicate with the terminal through the relay station.
  • a terminal in this embodiment of the present application is a device with a wireless transceiver function.
  • Terminals can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • a terminal may also be referred to as a terminal device, and the terminal device may be a user equipment (UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device with a wireless communication function.
  • the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function.
  • the terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, intelligent A wireless terminal in a power grid, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.
  • the device for implementing the function of the terminal may be a terminal; it may also be a device capable of supporting the terminal to implement the function, such as a chip system, which may be installed in the terminal or used in combination with the terminal.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the functions of the terminal as a terminal as an example.
  • the terminal may communicate with multiple base stations of different technologies.
  • the terminal may communicate with a base station supporting an LTE network, a base station supporting a 5G network, and a base station supporting an LTE network and a 5G network. Dual connectivity of the base stations of the network.
  • the terminal may be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • a wearable device is not only a hardware device, but also a device that realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include devices with full functions, large sizes, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and include only focusing on a certain type of application function, which needs to be integrated with other devices such as Devices used in conjunction with smartphones, such as various types of smart bracelets and smart jewelry that monitor physical signs.
  • the terminal may be a terminal in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Machine interconnection the intelligent network of the interconnection of things and things.
  • the terminal in this application may be a terminal in machine type communication (MTC).
  • MTC machine type communication
  • the terminal of the present application may be an on-board module, on-board module, on-board component, on-board chip or on-board unit built into the vehicle as one or more components or units, and the vehicle passes through the built-in on-board module, on-board module, on-board component , on-board chip or on-board unit can implement the method of the present application.
  • the communication system 10 shown in FIG. 1 is only used for example, and is not used to limit the technical solution of the present application. Those skilled in the art should understand that in the specific implementation process, the communication system 10 may also include other devices, and the number of network devices and terminals may also be determined according to specific needs, which is not limited.
  • each network element in FIG. 1 in the embodiment of the present application may be a functional module in one device.
  • the functional module can be an element in a hardware device, for example, a communication chip or a communication component in a terminal or a network device, or a software functional module running on hardware, or a platform (for example, a cloud Virtualization functions instantiated on the platform).
  • each network element in FIG. 1 may be implemented by the communication device 20 in FIG. 2 .
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device applicable to this embodiment of the present application.
  • the communication apparatus 20 includes at least one processor 201 and at least one communication interface 204, and is used for implementing the method provided by the embodiment of the present application.
  • the communication device 20 may also include a communication line 202 and a memory 203 .
  • the processor 201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 202 may include a path, such as a bus, for transferring information between the components described above.
  • the communication interface 204 can be any device such as a transceiver, such as an Ethernet interface, a radio access network (RAN) interface, a wireless local area network (WLAN) interface, a transceiver, a pin , bus, or transceiver circuit, etc.
  • RAN radio access network
  • WLAN wireless local area network
  • Memory 203 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, CD-ROM storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation.
  • the memory may exist independently and be coupled to the processor 201 through the communication line 202 .
  • the memory 203 may also be integrated with the processor 201 .
  • the memory provided by the embodiments of the present application may generally be non-volatile.
  • the memory 203 is used for storing computer-executed instructions involved in executing the solutions provided by the embodiments of the present application, and the execution is controlled by the processor 201 .
  • the processor 201 is configured to execute the computer-executed instructions stored in the memory 203, thereby implementing the method provided by the embodiments of the present application.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2 .
  • the communication apparatus 20 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 2 .
  • processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the communication apparatus 20 may further include an output device 205 and/or an input device 206 .
  • Output device 205 is coupled to processor 201 and can display information in a variety of ways.
  • the output device 205 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • Input device 206 is coupled to processor 201 and can receive user input in a variety of ways.
  • the input device 206 may be a mouse, a keyboard, a touch screen device, a sensor device, or the like.
  • the above-mentioned communication apparatus 20 may be a general-purpose device or a dedicated device.
  • the embodiment of the present application does not limit the type of the communication device 20 .
  • transmission may be understood as sending and/or receiving according to a specific context.
  • Transmission can be a noun or a verb. Transmission is often used instead of sending and/or receiving when the subject of the action is not emphasized.
  • the phrase "transmitting PUCCH” can be understood as sending PUCCH from the perspective of the terminal, and can be understood as receiving PUCCH from the perspective of the base station.
  • the transmission of the PUCCH can be understood by those skilled in the art as the transmission of the information carried in the PUCCH.
  • A/B may indicate A or B
  • a and/or may be used to describe There are three kinds of relationships between related objects, for example, A and/or B, which can be expressed as: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural.
  • words such as “first” and “second” may be used to distinguish technical features with the same or similar functions.
  • the words “first”, “second” and the like do not limit the quantity and execution order, and the words “first”, “second” and the like do not limit the difference.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations, and any embodiment or design solution described as “exemplary” or “for example” should not be construed are preferred or advantageous over other embodiments or designs.
  • the use of words such as “exemplary” or “such as” is intended to present the relevant concepts in a specific manner to facilitate understanding.
  • the network device and/or the terminal may perform some or all of the steps in the embodiments of the present application, these steps are only examples, and the embodiments of the present application may also perform other steps or variations of various steps .
  • various steps may be performed in different orders presented in the embodiments of the present application, and it may not be necessary to perform all the steps in the embodiments of the present application.
  • the specific structure of the execution body of the communication method is not particularly limited in the embodiments of the present application, as long as the methods provided by the embodiments of the present application can be implemented.
  • the execution subject of the communication method provided by the embodiment of the present application may be a network device, or a component applied in the network device, for example, a chip, which is not limited in this application.
  • the execution subject of the communication method provided in the embodiment of the present application may be a terminal, or a component applied in the terminal, such as a chip, which is not limited in this application.
  • the following embodiments are described by taking an example that the execution bodies of the communication method are a network device and a terminal respectively.
  • one carrier may correspond to one cell (cell).
  • One cell can correspond to at least one carrier.
  • a cell is a logical concept, and is a logical unit that provides services for terminals in a mobile communication network, and the broadcast signal or data signal of the cell needs to be carried on a corresponding carrier for transmission.
  • This application does not make any limitation on the specific correspondence between the carrier and the cell.
  • “carrier” is used as an example in this application, “carrier” can be replaced with "cell”, for example, “multiple carriers” can be used as “multiple cells” The replacement is described in a unified manner here, and will not be repeated hereafter.
  • a communication method provided by an embodiment of the present application includes S301-S302.
  • S301 The network device sends first indication information to the terminal.
  • the network device may be the network device 101 in the communication system 10 shown in FIG. 1 .
  • the terminal may be any terminal in the communication system 10 shown in FIG. 1 , for example, the terminal 102 , the terminal 103 or the terminal 104 .
  • the first indication information may be used to indicate multiple carriers through which the terminal communicates with the network device.
  • the multiple carriers may be included in one PUCCH group, or may be included in multiple PUCCH groups.
  • the PUCCH group can be defined by a protocol or configured by a network device.
  • At least one preset carrier in each PUCCH group can be used for PUCCH transmission. For example, if the number of PUCCH groups is 1, the preset carrier for transmitting PUCCH in the PUCCH group may be a carrier corresponding to a primary cell (primary cell, PCell).
  • one of the PUCCH groups is a primary PUCCH group (primary PUCCH group), and the preset carriers for PUCCH transmission in the group may include at least carriers corresponding to PCell.
  • the other PUCCH groups are secondary PUCCH groups (secondary PUCCH groups), and the preset carriers for PUCCH transmission in this group may include at least carriers corresponding to PUCCH secondary cells (PUCCH secondary cells, PUCCH SCells).
  • the first indication information is included in a radio resource control (radio resource control, RRC) message.
  • RRC radio resource control
  • the first indication information is included in the uplink frequency information (FrequencyInfoUL).
  • the first indication information may be called carrier configuration information, which is not limited.
  • At least two of the multiple carriers can be used by the terminal to transmit the PUCCH.
  • the terminal receives the first indication information from the network device. It can be understood that after receiving the first indication information, the terminal can determine multiple carriers for communication with the network device according to the first indication information.
  • S302 The terminal performs repeated PUCCH transmission N times on at least one carrier among the multiple carriers.
  • the at least one carrier referred to in S302 may correspond to the following two situations, which will be described in detail below.
  • At least one carrier includes the first carrier, that is, in this implementation manner, the time unit that bears the N times of repeated transmission of the PUCCH of the terminal is located on the same carrier, that is, the first carrier.
  • the time unit of the Nth PUCCH transmission of the bearer terminal is the time unit of the candidate Nth PUCCH transmission on the first carrier.
  • the first carrier is the carrier with the earliest end position in the time unit of the candidate Nth PUCCH transmission of the terminal among the multiple carriers.
  • N is an integer greater than 1.
  • the time unit that carries the Nth PUCCH transmission of the terminal may be understood as the time unit that the terminal actually transmits the Nth PUCCH.
  • the time unit of the candidate Nth PUCCH transmission on the first carrier may be understood as the time unit of the Nth PUCCH transmission on the first carrier if the Nth PUCCH is transmitted on the first carrier.
  • the time unit of the candidate Nth PUCCH transmission on the first carrier can also be understood as if the N times of PUCCH are all sent on the first carrier, then the first The time unit in which the Nth PUCCH is sent on the carrier.
  • FIG. 4A it is a schematic diagram of time units on carrier 1, carrier 2, and carrier 3, and the above-mentioned multiple carriers include carrier 1, carrier 2, and carrier 3.
  • time unit 0 on carrier 1, time unit 1, and time unit 3 to time unit 6 are downlink time units, which can be used to transmit downlink data
  • time unit 2 on carrier 1 and time unit 7 to time Unit 9 is an uplink time unit, which can be used to transmit uplink data.
  • Time unit 0 on carrier 2, time unit 3 to time unit 7, and time unit 9 are downlink time units that can be used to transmit downlink data
  • time unit 8 are uplink time units A time unit that can be used to transmit uplink data.
  • Time unit 0 to time unit 3 on carrier 3, time unit 5, and time unit 7 to time unit 9 are downlink time units, which can be used to transmit downlink data.
  • Time unit 4 and time unit 6 on carrier 3 are uplink time unit, which can be used to transmit uplink data.
  • N the terminal performs 2 PUCCH repeated transmissions as an example, if both PUCCHs are sent on carrier 1, the time unit of the candidate first PUCCH transmission on carrier 1 is time unit 2, and the time unit on carrier 1 is time unit 2.
  • the time unit of the candidate second PUCCH transmission is time unit 7 .
  • the time unit of the candidate first PUCCH transmission on carrier 2 is time unit 1
  • the time unit of the candidate second PUCCH transmission on carrier 2 is time unit 2.
  • the time unit of the candidate first PUCCH transmission on carrier 3 is time unit 4
  • the time unit of the candidate second PUCCH transmission on carrier 3 is time unit 6.
  • the time unit in this embodiment of the present application includes at least one time domain symbol, for example, an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol.
  • the time domain symbols can be uplink symbols, downlink symbols or flexible symbols. That is to say, the symbols included in the time unit may be all uplink symbols (referred to as uplink time units in this application), or all downlink symbols (referred to as downlink time units in this application), or all flexible symbols, or some of them are
  • the downstream symbols are either partially upstream symbols or partially flexible symbols.
  • the time unit may be a slot, a subslot, a subframe, or the like. It can be understood that the symbol types included in the time units in FIG. 4A are all the same. For example, time unit 0 on carrier 1 includes all downlink symbols, and time unit 1 on carrier 2 includes all uplink symbols. It should be understood that the length of the time unit on the carrier is determined according to the subcarrier spacing of the carrier.
  • the PUCCH is carried on a corresponding symbol in a time unit, and the corresponding symbol is an uplink symbol or a flexible symbol. Further, if the bearer PUCCH is carried on multiple symbols, the multiple symbols may be consecutive symbols. From another perspective, when the corresponding symbol used in the PUCCH transmission time unit of the bearer terminal or the time unit of the candidate PUCCH transmission of the bearer terminal is an uplink symbol or a flexible symbol, and is a continuous symbol, the time unit can be used to carry the PUCCH.
  • the flexible symbol is not a symbol for transmitting a synchronization signal block (synchronization signal block, SSB).
  • the time domain position of the PUCCH in each time unit may be the same or different, which is not limited in the embodiment of the present application.
  • Uplink control information such as CSI, SR or HARQ-ACK messages can be carried on the PUCCH.
  • the terminal is on the first carrier.
  • N times of PUCCH repeated transmission can be completed at the earliest.
  • the terminal performs 2 repeated PUCCH transmissions.
  • the description of the time unit of the candidate 1st PUCCH transmission and the time unit of the candidate 2nd PUCCH transmission on The time unit of the secondary PUCCH transmission is time unit 2
  • the time unit of the candidate second PUCCH transmission on carrier 3 on carrier 3 is time unit 6 . Therefore, among carrier 1, carrier 2 and carrier 3, the carrier with the earliest end position in the time unit of the candidate second PUCCH transmission of the terminal is carrier 2, that is, the terminal can complete the earliest 2 PUCCH repetitions on carrier 2 send. Therefore, the first carrier is carrier 2 .
  • the carrier with the earliest end position in the time unit of the candidate Nth PUCCH transmission of the terminal has at least two carriers, and the first carrier is the carrier with the smallest identifier among the at least two carriers. . That is to say, among the multiple carriers, the number of carriers that complete N times of repeated PUCCH transmission at the earliest is greater than 1, and the terminal may determine the carrier with the smallest identifier among the carriers that complete N times of repeated transmission of PUCCH at the earliest as the first carrier.
  • the identifier can be understood as a carrier identifier or a cell identifier.
  • time unit 0 on carrier 1 time unit 1, and time unit 3 to time unit 6 are downlink time units, which can be used to transmit downlink data
  • time unit 2 on carrier 1 time unit 7 to time Unit 9 is an uplink time unit, which can be used to transmit uplink data.
  • Time unit 0 on carrier 2 time unit 3 to time unit 7, and time unit 9 are downlink time units that can be used to transmit downlink data
  • Time unit 0 to time unit 3 on carrier 3, time unit 5, and time unit 7 to time unit 8 are downlink time units, which can be used to transmit downlink data.
  • Time unit 4, time unit 6 and time unit on carrier 3 9 is an uplink time unit, which can be used to transmit uplink data.
  • N is equal to 3, that is, the terminal performs repeated PUCCH transmissions three times, and for carrier 1, the time unit that bears the terminal's candidate third PUCCH transmission is time unit 8.
  • the time unit that bears the candidate third PUCCH transmission of the terminal is also time unit 8.
  • the time unit for the third PUCCH transmission candidate of the bearer terminal is time unit 9. Therefore, either carrier 1 or carrier 2 can be used as the first carrier. If the carrier identity or cell identity of carrier 1 is smaller than that of carrier 2, the first carrier is carrier 1.
  • the terminal may determine, among the multiple carriers, the carrier that completes the repeated transmission of all PUCCHs on the corresponding carrier at the earliest as the first carrier.
  • the time unit of the candidate fourth PUCCH transmission on carrier 1 is time unit 9
  • the time unit of the candidate third PUCCH transmission on carrier 2 is time unit 8
  • the candidate second PUCCH transmission on carrier 3 is time unit 8.
  • the time unit sent is time unit 6 .
  • Carrier 3 is among carrier 1, carrier 2, and carrier 3, and is the earliest carrier to complete the repeated transmission of all PUCCHs. Therefore, the first carrier is carrier 3 .
  • At least one carrier is multiple carriers, for example, at least one carrier includes a first carrier and a second carrier. That is to say, the time unit that bears the N times of repeated transmission of the PUCCH of the terminal may be located on the same carrier, or may be located on different carriers. In other words, for at least one of the N repeated PUCCH transmissions by the terminal, or even for each PUCCH transmission, the carrier on which the terminal performs PUCCH transmission may be independently determined. The end time of the number of PUCCH transmissions performed by the terminal on the carrier corresponding to the carrier is the earliest among multiple carriers.
  • the time unit of the Nth PUCCH transmission of the bearer terminal is the time unit of the candidate Nth PUCCH transmission on the first carrier
  • the time unit of the nth PUCCH transmission of the bearer terminal is the time unit of the candidate Nth PUCCH transmission on the second carrier.
  • the first carrier is the carrier with the earliest end position in the time unit of the candidate Nth PUCCH transmission of the terminal among the multiple carriers.
  • the second carrier is the carrier with the earliest end position in the time unit of the candidate nth PUCCH transmission of the terminal among the multiple carriers.
  • n is an integer greater than or equal to 1 and less than N.
  • N is an integer greater than 1.
  • the first carrier and the second carrier may be the same or different.
  • the second carrier on which the (n+1)th PUCCH transmission is performed and the second carrier on which the nth PUCCH transmission is performed may be the same or different.
  • the time unit carried by the terminal's nth PUCCH transmission may be understood as a time unit in which the terminal actually transmits the nth PUCCH.
  • the time unit of the candidate Nth PUCCH transmission on the first carrier can be understood as the Nth PUCCH transmission for the terminal. If the Nth PUCCH is sent on the first carrier, the Nth time PUCCH is sent on the first carrier. Time unit of PUCCH.
  • the time unit of the candidate nth PUCCH transmission on the second carrier can be understood as the nth PUCCH transmission for the terminal. If the nth PUCCH is sent on the second carrier, the nth PUCCH is sent on the second carrier. time unit.
  • the time unit of the first candidate PUCCH transmission on the previous 1 is time unit 2
  • the time unit of the candidate first PUCCH transmission on carrier 2 is time unit 1
  • the time unit of the candidate first PUCCH transmission on carrier 3 is time.
  • the time unit of the first PUCCH transmission of the bearer terminal may be the time unit 1 on the carrier 2.
  • the time unit of the candidate second PUCCH transmission on carrier 1 is still time unit 2 (because the end position of the terminal's first PUCCH transmission on carrier 2 is earlier than or equal to the carrier The starting position of time unit 2 of 1), the time unit of the candidate second PUCCH transmission on carrier 2 is time unit 2, and the time unit of the candidate second PUCCH transmission on carrier 3 is still time unit 4, then the bearer
  • the time unit of the second PUCCH transmission of the terminal may be the time unit 2 on the carrier 2 or the time unit 2 on the carrier 1 .
  • the time unit of the candidate third PUCCH transmission on carrier 1 is time unit 7
  • the time unit of the candidate third PUCCH transmission on carrier 2 is time unit 8
  • the candidate of carrier 3 is time unit 8.
  • the time unit of the third PUCCH transmission is time unit 4
  • the time unit of the third PUCCH transmission of the bearer terminal may be time unit 4 on carrier 3 .
  • the terminal can determine whether each time unit can be used to transmit the PUCCH one by one according to the chronological order, so as to avoid missing a certain time unit and cause the time of the PUCCH transmission. delay increase. In other words, the terminal usually assumes that the repetition of the PUCCH is continuous in the time domain, that is, the terminal usually assumes that the PUCCH is repeatedly sent in continuous time units. In time sequence, it is determined one by one whether each time unit can transmit PUCCH. Exemplarily, when determining whether a time unit, eg, time unit 1, can transmit PUCCH, the terminal may determine whether time unit 1 on each of the multiple carriers can transmit PUCCH. If the time unit 1 on each of the multiple carriers cannot transmit the PUCCH, the terminal determines whether the next time unit of the time unit 1 on each carrier can transmit the PUCCH. It should be understood that the time units during actual transmission may be discontinuous.
  • the position may be the start position or the end position.
  • the terminal determines the carrier for the first PUCCH transmission, it first determines whether the PUCCH can be transmitted on the first time unit of each carrier, if the PUCCH cannot be transmitted on the first time unit of each carrier (here Assuming that the start position of the first time unit of each carrier is the same, that is, the start position of the first time unit of each carrier is aligned in the time domain), the terminal can start the second time unit of each carrier The terminal determines whether the PUCCH can be transmitted, and so on, until the terminal finds a time unit that can be used to transmit the PUCCH, and the terminal can determine to send the first PUCCH on the carrier. Subsequently, the terminal may determine the carrier for the second PUCCH transmission...the carrier for the Nth PUCCH transmission in a similar method.
  • the terminal first determines the carrier for the first PUCCH transmission.
  • Time unit 0 of carrier 2 and carrier 3 are both downlink time units, and the first PUCCH transmission cannot be performed.
  • time unit 1 on carrier 1 and carrier 3 is a downlink time unit and cannot perform the first PUCCH transmission, but time unit 1 of carrier 2 is an uplink time unit and can perform the first PUCCH transmission, then the terminal It is determined that time unit 1 on carrier 2 performs the first PUCCH transmission.
  • the terminal determines the carrier for the second PUCCH transmission.
  • time unit 2 on carrier 1 and carrier 2 is the uplink time unit, and the second PUCCH transmission can be performed, and time unit 2 on carrier 3 is the downlink time. unit, the second PUCCH transmission cannot be performed, and the terminal determines to perform the second PUCCH transmission on the carrier 1 or the time unit 2 on the carrier 2. Finally, the terminal determines the carrier for the third PUCCH transmission.
  • carrier 1, carrier 2, and time unit 3 on carrier 3 are all downlink time units, and the third PUCCH transmission cannot be performed.
  • time unit 4 on carrier 1 and carrier 2 are both downlink time units and cannot perform the third PUCCH transmission.
  • Time unit 4 on carrier 3 is an uplink time unit and can perform the third PUCCH transmission, then The terminal determines to perform the third PUCCH transmission at time unit 4 on carrier 3 .
  • the carrier with the earliest end position in the time unit of the candidate nth PUCCH transmission of the terminal has at least two carriers.
  • the carrier includes a carrier that carries the time unit of the (n-1)th PUCCH transmission, and the second carrier is the carrier that carries the time unit of the (n-1)th PUCCH transmission.
  • the terminal performs 3 repeated PUCCH transmissions.
  • the carrier Time unit 1 and time unit 2 on carrier 2 are uplink time units, which can carry out the second PUCCH transmission
  • the time unit that carries the first PUCCH transmission is time unit 1 on carrier 2, which carries the time of the second PUCCH transmission
  • the unit may be time unit 2 on carrier 2. That is, the terminal can perform the second PUCCH transmission on carrier 2, so that after the terminal completes the first PUCCH transmission, it does not need to switch to carrier 1 for the second PUCCH transmission, reducing the complexity of network equipment and terminals. .
  • the length of the time unit in which the PUCCH is carried on each of the at least one carrier is the same.
  • at least one carrier includes two or more than two carriers, and the lengths of the time units in which the PUCCH is carried on at least two carriers may be different.
  • SCS subcarrier spacing
  • Subcarrier spacing may also be referred to as subcarrier spacing. The larger the subcarrier spacing is, the shorter the length of the time unit is, and the smaller the subcarrier spacing is, the longer the length of the time unit is.
  • the length of the time unit is also different. Therefore, the length of the time unit that carries one PUCCH transmission on one carrier can be equal to the length of the time unit that bears multiple PUCCH transmissions on another carrier.
  • a PUCCH repetition on a carrier can be turned into multiple PUCCH repetitions if transmitted on another carrier.
  • the length of the time unit for carrying multiple PUCCH transmissions on one carrier may be equal to the length of the time unit for carrying one PUCCH transmission on another carrier. At this time, multiple PUCCH repetitions on one carrier can be changed on another carrier. It is sent repeatedly as a PUCCH.
  • FIG. 5 it is a schematic diagram of time units on carrier 1 , carrier 2 and carrier 3 .
  • the sub-carrier spacing of carrier 1 is 30 kilohertz (kHz)
  • the sub-carrier spacing of carrier 2 is 60 kHz
  • the sub-carrier spacing of carrier 3 is 15 kHz.
  • the time unit length of carrier 1 is twice that of carrier 2
  • the time unit length of carrier 3 is twice that of carrier 1.
  • the terminal performs the first PUCCH transmission on time unit 0 of carrier 1, the second PUCCH transmission on time unit 2 of carrier 2, and the third PUCCH transmission on time interval 3 of carrier 2
  • the fourth PUCCH transmission is performed on time unit 1 of carrier 3 .
  • the terminal may preferentially select a carrier with the same subcarrier interval as the carrier for performing the first PUCCH transmission, or the terminal may preferentially select a carrier with a primary cell (primary cell, PCell) corresponds to a carrier with the same subcarrier spacing, or the terminal may preferentially select a carrier with the same subcarrier spacing as the carrier sent in the previous PUCCH transmission.
  • a primary cell primary cell, PCell
  • the network device performs repeated PUCCH reception N times on at least one of the multiple carriers.
  • the first carrier may also be described as the carrier with the earliest end position in the time unit of the Nth PUCCH candidate receiving the network device among the multiple carriers.
  • the network device and the terminal can respectively determine at least one carrier. Subsequently, the terminal may perform N times of repeated PUCCH transmission on at least one carrier, and the network device may perform N times of repeated PUCCH reception on at least one carrier.
  • the network device may indicate the at least one carrier to the terminal, for example, the network device sends indication information indicating the at least one carrier to the terminal. In this way, after the terminal receives the indication information, it can perform repeated PUCCH transmission N times on at least one carrier.
  • the network device may also indicate to the terminal the carrier for the first PUCCH transmission in the at least one carrier.
  • the network device sends the terminal information indicating the carrier for the first PUCCH transmission.
  • the terminal can use the method in S302 above to determine at least one carrier and other carriers for N-1 times of PUCCH transmission, and perform N times of PUCCH repeated transmission on at least one carrier.
  • the network device sends the second indication information to the terminal.
  • the second indication information may be used to indicate whether one or more carriers are used for repeated PUCCH transmission. If the second indication information indicates that there is one carrier for performing PUCCH repeated transmission, the terminal performs N times of PUCCH repeated transmission on the first carrier. If the second indication information indicates that there are multiple carriers for performing PUCCH repeated transmission, the terminal performs N times of PUCCH repeated transmission on the first carrier and the second carrier.
  • the second indication information includes 1 bit, if the 1 bit is 0, the second indication information indicates that there is 1 carrier for performing PUCCH repeated transmission, and if the 1 bit is 1, the second indication information indicates that the PUCCH is performed. There are multiple carriers for repeated transmission, and vice versa.
  • the second indication information can also be used to instruct the terminal to perform N times of PUCCH transmission.
  • the second indication information includes 1 bit. If the 1 bit is 0, the second indication information indicates that N times of PUCCH transmission is performed through at least one carrier introduced in Case 1. If the 1 bit is 1, the second indication information is The indication information indicates that N times of PUCCH transmission is performed through at least one carrier introduced in Case 2, and vice versa.
  • the network device sends third indication information to the terminal.
  • the third indication information may be used to indicate the time domain position of the time unit that bears the first PUCCH transmission of the terminal.
  • the terminal may determine the time unit where the time domain position is located as the time unit that carries the first PUCCH transmission.
  • the terminal may also use the time domain location as a reference (for example, when the time unit where the time domain location is located is a downlink time unit and cannot transmit PUCCH, the time domain location may be used as a reference time domain location), and in the reference time domain In the time unit after the location, the time unit carrying the first PUCCH transmission is determined.
  • the third indication information further includes time interval information.
  • the time interval information is used to indicate the time interval between the time unit that bears the physical downlink shared channel (PDSCH) and the time unit that bears the first PUCCH.
  • the third indication information may be included in the DCI.
  • the terminal can obtain the time domain position of the time unit carrying the first PUCCH transmission of the terminal according to the time unit carrying the PDSCH and the time interval. For example, the terminal adds the index of the time unit carrying the PDSCH to the time interval to obtain the time domain position of the time unit carrying the first PUCCH transmission of the terminal.
  • the terminal may also use the time domain location as a reference (for example, when the time unit where the time domain location is located is a downlink time unit and cannot transmit PUCCH, the time domain location may be used as a reference time domain location), and in the reference time domain In the time unit after the location, the time unit carrying the first PUCCH transmission is determined.
  • the time unit that bears the PDSCH may be configured by the network device and indicated to the terminal.
  • the indication information indicating the time unit carrying the PDSCH may be included in the third indication information, or may be delivered by the network device through other signaling, for example, delivered through an RRC message.
  • the network device sends fourth indication information to the terminal.
  • the fourth indication information includes the start position of one PUCCH transmission in one time unit and the time domain length of one PUCCH.
  • the terminal can determine the time domain position of the one time PUCCH transmission in one time unit according to the fourth indication information, and the subsequent terminal can perform a PUCCH repeated transmission at the time domain position .
  • the fourth indication information includes the start position of the first PUCCH in the time domain and the time domain length of the first PUCCH.
  • the terminal after receiving the fourth indication information, the terminal can determine the time domain position of the time unit carried by the first PUCCH transmission according to the fourth indication information, and the subsequent terminal can perform the first time at this time domain position The PUCCH is repeatedly sent.
  • the terminal may, among the multiple carriers indicated by the network device, determine the carrier with the earliest end position in the time unit that carries the candidate Nth PUCCH transmission of the terminal as the carrier for performing N repeated PUCCH transmissions. carrier, so that the terminal can complete N repeated PUCCH transmissions as soon as possible and reduce the delay of PUCCH transmission.
  • the actions of the network device or terminal in the above S301-S302 can be executed by the processor 201 in the communication apparatus 20 shown in FIG. 2 calling the application code stored in the memory 203, and this embodiment of the present application does not do anything to this. limit.
  • the above-mentioned terminal or network device includes hardware structures and/or software modules corresponding to each function.
  • the unit and algorithm operations of each example described in conjunction with the embodiments disclosed herein can be implemented in hardware or in the form of a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the terminal or network device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 6 shows a schematic structural diagram of a communication device 60 .
  • the communication device 60 includes a transceiver module 601 and a processing module 602 .
  • the communication device 60 is used to realize the functions of the terminal.
  • the communication device 60 is, for example, the terminal described in the embodiment shown in FIG. 3 .
  • the communication device 60 may be a terminal, or may be a chip applied in the terminal, or other combined device or component having the above-mentioned terminal function.
  • the transceiver module 601 may be a transceiver, the transceiver may include an antenna and a radio frequency circuit, etc.
  • the processing module 602 may be a processor (or a processing circuit), such as a baseband processor, and the baseband processor may Include one or more CPUs.
  • the transceiver module 601 may be a radio frequency unit
  • the processing module 602 may be a processor (or a processing circuit), such as a baseband processor.
  • the transceiver module 601 may be an input/output interface of a chip (eg, a baseband chip), and the processing module 602 may be a processor (or a processing circuit) of the chip system, which may include one or more central processing units unit.
  • the transceiver module 601 in this embodiment of the present application may be implemented by a transceiver or a transceiver-related circuit component, and the processing module 602 may be implemented by a processor or a processor-related circuit component (or referred to as a processing circuit).
  • the transceiving module 601 may be used to perform all transceiving operations performed by the terminal in the embodiment shown in FIG. 3 , such as S301 , and/or other processes used to support the techniques described herein.
  • the processing module 602 may be configured to perform all operations performed by the terminal in the embodiment shown in FIG. 3 except for the transceiving operations, such as S302, and/or other processes for supporting the techniques described herein.
  • the transceiver module 601 is configured to receive first indication information from a network device, where the first indication information is used to indicate a plurality of carriers that the communication apparatus 60 communicates with the network device.
  • the processing module 602 is configured to control the transceiver module 601 to perform repeated PUCCH transmission N times on at least one carrier in the plurality of carriers, wherein the at least one carrier includes the first carrier, and the Nth PUCCH transmission of the communication device 60
  • the time unit carried is the time unit of the candidate Nth PUCCH transmission on the first carrier
  • the first carrier is the time unit that carries the candidate Nth PUCCH transmission of the communication device 60 in the plurality of carriers.
  • the earliest carrier, N is an integer greater than 1.
  • the time units that carry the N times of PUCCH transmissions of the communication device 60 are located on the same carrier.
  • the carrier with the earliest end position in the time unit that carries the candidate Nth PUCCH transmission of the communication device 60 has at least two carriers, and the first carrier is the at least two carriers , the carrier identifies the smallest carrier.
  • the at least one carrier further includes a second carrier
  • the time unit borne by the nth PUCCH transmission of the communication device 60 is the time unit of the candidate nth PUCCH transmission on the second carrier.
  • the second carrier is the carrier with the earliest end position in the time unit that carries the candidate nth PUCCH transmission of the communication device 60 among the multiple carriers, where n is an integer greater than or equal to 1 and less than N.
  • the multiple carriers there are at least two carriers with the earliest ending position in the time unit that carries the candidate (n+1)th PUCCH transmission of the communication device 60, if the at least two carriers includes the carrier carrying the time unit of the nth PUCCH transmission, and the second carrier is the carrier carrying the time unit of the nth PUCCH transmission.
  • the lengths of the time units carrying the PUCCH on each of the at least one carrier are the same.
  • the repetition times of the PUCCH on each carrier are the same.
  • the symbol corresponding to the time domain position of the PUCCH in the time unit is an uplink symbol or a flexible symbol.
  • the transceiver module 601 is further configured to receive second indication information from the network device, where the second indication information is used to indicate the number of carriers for repeated PUCCH transmission.
  • the communication apparatus 60 is used to realize the function of the network device.
  • the communication apparatus 60 is, for example, the network device described in the embodiment shown in FIG. 3 .
  • the communication apparatus 60 may be a network device, or may be a chip applied in the network device or other combined devices or components having the functions of the above-mentioned network device.
  • the transceiver module 601 may be a transceiver, and the transceiver may include an antenna and a radio frequency circuit, etc.
  • the processing module 602 may be a processor (or a processing circuit), such as a baseband processor. One or more CPUs may be included.
  • the transceiver module 601 may be a radio frequency unit, and the processing module 602 may be a processor (or a processing circuit), such as a baseband processor.
  • the transceiver module 601 may be an input/output interface of a chip (eg, a baseband chip), and the processing module 602 may be a processor (or a processing circuit) of the chip system, which may include one or more central processing units unit.
  • transceiver module 601 in this embodiment of the present application may be implemented by a transceiver or a transceiver-related circuit component
  • processing module 602 may be implemented by a processor or a processor-related circuit component (or referred to as a processing circuit).
  • the transceiving module 601 may be used to perform all transceiving operations performed by the network device in the embodiment shown in FIG. 3 , such as S301 , and/or other processes used to support the techniques described herein.
  • the processing module 602 may be configured to perform all operations performed by the terminal in the embodiment shown in FIG. 3 except for the transceiving operations, such as S302, and/or other processes for supporting the techniques described herein.
  • the transceiver module 601 is configured to send first indication information to the terminal, where the first indication information is used to indicate multiple carriers that the terminal communicates with the communication device 60 .
  • the processing module 602 is configured to control the transceiver module 601 to perform N times of repeated PUCCH reception on at least one carrier in the plurality of carriers, wherein the at least one carrier includes the first carrier, and the Nth PUCCH reception of the communication device 60 is the same as that of the Nth PUCCH reception of the communication device 60.
  • the time unit of the bearer is the time unit of the candidate Nth PUCCH reception on the first carrier, and the first carrier is the end position in the time unit of the candidate Nth PUCCH reception of the communication device 60 among the multiple carriers.
  • the earliest carrier, N is an integer greater than 1.
  • the time units that carry the N times of PUCCH reception of the communication device 60 are located on the same carrier.
  • the carrier with the earliest end position in the time unit that carries the candidate Nth PUCCH reception of the communication device 60 has at least two carriers, and the first carrier is the at least two carriers , the carrier identifies the smallest carrier.
  • the at least one carrier further includes a second carrier
  • the time unit carried by the nth PUCCH reception of the communication device 60 is the time unit of the candidate nth PUCCH reception on the second carrier.
  • the second carrier is the carrier with the earliest end position in the time unit that carries the candidate nth PUCCH reception of the communication device 60 among the multiple carriers, where n is an integer greater than or equal to 1 and less than N.
  • the multiple carriers there are at least two carriers with the earliest ending position in the time unit that carries the candidate (n+1)th PUCCH reception of the communication device 60, if the at least two carriers includes the carrier carrying the time unit of the nth PUCCH reception, and the second carrier is the carrier carrying the time unit of the nth PUCCH reception.
  • the lengths of the time units carrying the PUCCH on each of the at least one carrier are the same.
  • the repetition times of the PUCCH on each carrier are the same.
  • the symbol corresponding to the time domain position of the PUCCH in the time unit is an uplink symbol or a flexible symbol.
  • the transceiver module 601 is further configured to send second indication information to the terminal, where the second indication information is used to indicate the number of carriers on which PUCCH repeated transmission is performed.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, which are stored in a storage medium , including several instructions to make a device (may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

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Abstract

本申请公开了通信方法及装置，涉及无线通信领域，可以减小终端发送PUCCH的时延。该方法包括：终端接收来自网络设备的用于指示终端与网络设备通信的多个载波的第一指示信息；终端在多个载波中的至少一个载波上进行N次PUCCH重复发送。其中，至少一个载波包括第一载波，承载终端的第N次PUCCH发送的时间单元是第一载波上的候选第N次PUCCH发送的时间单元，第一载波为多个载波中，承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波，N为大于1的整数。

Description

通信方法及装置 技术领域
本申请涉及无线通信领域，尤其涉及通信方法及装置。
背景技术
在通信系统中，网络设备可以为终端配置多个载波，每个载波可以对应一个小区，该多个载波包括在至少一个物理上行控制信道(physical uplink control channel，PUCCH)组(PUCCH group)中。现有技术中，一个PUCCH组中有一个载波可以用来传输PUCCH。
网络设备为终端配置多个载波后，终端可以通过该多个载波与网络设备通信。例如，终端通过多个载波中的任一载波接收来自网络设备的配置信息，该配置信息用于配置至少一个PUCCH。终端接收到该配置信息后，可以根据该配置信息向网络设备发送至少一个PUCCH。其中，PUCCH可以承载信道状态信息(channel state information，CSI)、调度请求(scheduling request，SR)或混合自动重复应答(hybrid automatic repeat request acknowledgement，HARQ-ACK)消息等。
由于在时分双工(time division duplex，TDD)系统中，PUCCH只能承载在上行符号或灵活符号上，因此终端发送PUCCH的时延会增大，导致网络设备无法及时接收到PUCCH。
发明内容
本申请提供通信方法及装置，可以减小终端发送PUCCH的时延。
第一方面，本申请实施例提供一种通信方法，该方法包括：终端接收来自网络设备的第一指示信息，该第一指示信息用于指示该终端与该网络设备通信的多个载波；终端在该多个载波中的至少一个载波上进行N次PUCCH重复发送，其中，该至少一个载波包括第一载波，承载该终端的第N次PUCCH发送的时间单元是该第一载波上的候选第N次PUCCH发送的时间单元，该第一载波为该多个载波中，承载该终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波，N为大于1的整数。
基于上述第一方面提供的方法，终端可以在网络设备指示的多个载波中，将承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波确定为用于进行N次PUCCH重复发送的载波，以便终端尽快完成N次PUCCH重复发送，降低PUCCH发送的时延。
一种可能的实现方式，承载该终端的N次PUCCH发送的时间单元位于同一个载波。基于上述方法，终端可以通过一个载波进行N次PUCCH重复发送，使得终端尽快完成N次PUCCH重复发送，降低PUCCH发送的时延。
一种可能的实现方式，该多个载波中，承载该终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，该第一载波为该至少两个载波中，标识最小的载波。基于上述方法，该多个载波中，承载终端的候选第N次PUCCH发 送的时间单元中结束位置最早的载波有至少两个载波的情况下，终端可以根据标识进一步确定进行N次PUCCH重复发送的一个载波。
一种可能的实现方式，该至少一个载波还包括第二载波，承载该终端的第n次PUCCH发送的时间单元是该第二载波上的候选第n次PUCCH发送的时间单元，该第二载波为该多个载波中，承载该终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。基于上述方法，对于终端的每次PUCCH发送，终端都可以确定一个载波。终端在该载波上进行的与该载波对应次数的PUCCH发送的结束时间，在多个载波中是最早的，以便终端尽快完成N次PUCCH重复发送，降低PUCCH发送的时延。
一种可能的实现方式，该多个载波中，承载该终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，若该至少两个载波中包括承载第(n-1)次PUCCH发送的时间单元的载波，则该第二载波为该承载第(n-1)次PUCCH发送的时间单元的载波，n为大于或者等于2，并且小于N的整数。基于上述方法，可以减少载波的切换次数，降低网络设备和终端的复杂度。
一种可能的实现方式，该至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。基于上述方法，可以降低网络设备和终端的复杂度。
一种可能的实现方式，该多个载波中，每个载波上的PUCCH重复次数相同。基于上述方法，可以降低网络设备和终端的复杂度。
一种可能的实现方式，该至少一个载波中，该PUCCH所承载在时间单元中对应的符号上，该对应的符号为上行符号或灵活符号。基于上述方法，终端可以在PUCCH所承载在时间单元中对应的符号上进行PUCCH发送。
一种可能的实现方式，该方法还包括：终端接收来自该网络设备的第二指示信息，该第二指示信息用于指示终端进行PUCCH重复发送的载波为一个还是多个。基于上述方法，终端可以根据第二指示信息确定通过一个载波进行N次PUCCH的重复发送，还是通过多个载波进行N次PUCCH的重复发送。
第二方面，本申请实施例提供一种通信方法该方法包括：网络设备向终端发送第一指示信息，该第一指示信息用于指示该终端与该网络设备通信的多个载波；网络设备在该多个载波中的至少一个载波上进行N次PUCCH重复接收，其中，该至少一个载波包括第一载波，承载该网络设备的第N次PUCCH接收的时间单元是该第一载波上的候选第N次PUCCH接收的时间单元，该第一载波为该多个载波中，承载该网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波，N为大于1的整数。
基于上述第二方面提供的方法，网络设备可以在网络设备指示的多个载波中，将承载网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波确定为用于进行N次PUCCH重复接收的载波，以便网络设备尽快完成N次PUCCH重复接收，降低PUCCH接收的时延。
一种可能的实现方式，承载该网络设备的N次PUCCH接收的时间单元位于同一个载波。基于上述方法，网络设备可以通过一个载波进行N次PUCCH重复接收，使得网络设备尽快完成N次PUCCH重复接收，降低PUCCH接收的时延。
一种可能的实现方式，该多个载波中，承载该网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，该第一载波为该至少两个载波中，标识最小的载波。基于上述方法，该多个载波中，承载网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波的情况下，网络设备可以根据标识进一步确定进行N次PUCCH重复接收的一个载波。
一种可能的实现方式，该至少一个载波还包括第二载波，承载该网络设备的第n次PUCCH接收的时间单元是该第二载波上的候选第n次PUCCH接收的时间单元，该第二载波为该多个载波中，承载该网络设备的候选第n次PUCCH接收的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。基于上述方法，对于网络设备的每次PUCCH接收，网络设备都可以确定一个载波。网络设备在该载波上进行的与该载波对应次数的PUCCH接收的结束时间，在多个载波中是最早的，以便网络设备尽快完成N次PUCCH重复接收，降低PUCCH接收的时延。
一种可能的实现方式，该多个载波中，承载该网络设备的候选第n次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，若该至少两个载波中包括承载第(n-1)次PUCCH接收的时间单元的载波，则该第二载波为该承载第(n-1)次PUCCH接收的时间单元的载波，n为大于或者等于2，并且小于N的整数。基于上述方法，可以减少载波的切换次数，降低网络设备和终端的复杂度。
一种可能的实现方式，该至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。基于上述方法，可以降低网络设备和终端的复杂度。
一种可能的实现方式，该多个载波中，每个载波上的PUCCH重复次数相同。基于上述方法，可以降低网络设备和终端的复杂度。
一种可能的实现方式，该至少一个载波中，该PUCCH所承载在时间单元中对应的符号上，该对应的符号为上行符号或灵活符号。基于上述方法，网络设备可以在PUCCH在时间单元中的时域位置对应的符号上进行PUCCH接收。
一种可能的实现方式，该方法还包括：网络设备向该终端发送第二指示信息，该第二指示信息用于指示终端进行PUCCH重复发送的载波为一个还是多个。基于上述方法，网络设备可以指示进行PUCCH重复传输的载波的数量，使得终端根据该指示确定通过一个载波进行N次PUCCH的重复发送，还是通过多个载波进行N次PUCCH的重复发送。
第三方面，本申请实施例提供一种通信装置，可以实现上述第一方面、或第一方面任一种可能的实现方式中的方法。该装置包括用于执行上述方法的相应的单元或部件。该装置包括的单元可以通过软件和/或硬件方式实现。该装置例如可以为终端、或者为可支持终端实现上述方法的芯片、芯片系统、或处理器等。
第四方面，本申请实施例提供一种通信装置，可以实现上述第二方面、或第二方面任一种可能的实现方式中的方法。该装置包括用于执行上述方法的相应的单元或部件。该装置包括的单元可以通过软件和/或硬件方式实现。该装置例如可以为网络设备、或者为可支持网络设备实现上述方法的芯片、芯片系统、或处理器等。
第五方面，本申请实施例提供一种通信装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时， 使得该装置实现上述第一方面、或第一方面任一种可能的实现方式中所述的方法。
第六方面，本申请实施例提供一种通信装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该装置实现上述第二方面、或第二方面任一种可能的实现方式中所述的方法。
第七方面，本申请实施例提供一种通信装置，该装置用于实现上述第一方面、或第一方面任一种可能的实现方式中所述的方法。
第八方面，本申请实施例提供一种通信装置，该装置用于实现上述第二方面、或第二方面任一种可能的实现方式中所述的方法。
第九方面，本申请实施例提供一种计算机可读介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第一方面、或第一方面任一种可能的实现方式中所述的方法。
第十方面，本申请实施例提供一种计算机可读介质，其上存储有计算机程序或指令，所述计算机程序或指令被执行时使得计算机执行上述第二方面、或第二方面任一种可能的实现方式中所述的方法。
第十一方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、或第一方面任一种可能的实现方式中所述的方法。
第十二方面，本申请实施例提供一种计算机程序产品，其包括计算机程序代码，所述计算机程序代码在计算机上运行时，使得计算机执行上述第二方面、或第二方面任一种可能的实现方式中所述的方法。
第十三方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第一方面、或第一方面任一种可能的实现方式中所述的方法。
第十四方面，本申请实施例提供一种芯片，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得该芯片实现上述第二方面、或第二方面任一种可能的实现方式中所述的方法。
第十五方面，本申请实施例提供一种通信系统。该系统包括上述第三方面所述的装置和/或上述第四方面所述的装置，或者该系统包括上述第五方面所述的装置和/或上述第六方面所述的装置，或者该系统包括上述第七方面所述的装置和/或上述第八方面所述的装置，或者该系统包括上述第十三方面所述的芯片和/或上述第十四方面所述的芯片。
可以理解的，上述提供的任一种通信装置、芯片、计算机可读介质、计算机程序产品或通信系统等均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考对应的方法中的有益效果，此处不再赘述。
附图说明
图1为本申请实施例提供的通信系统架构示意图；
图2为本申请实施例提供的通信装置的硬件结构示意图；
图3为本申请实施例提供的通信方法的流程示意图一；
图4A为本申请实施例提供的载波1、载波2和载波3上的时间单元示意图一；
图4B为本申请实施例提供的载波1、载波2和载波3上的时间单元示意图二；
图5为本申请实施例提供的载波1、载波2和载波3上的时间单元示意图三；
图6为本申请实施例提供的通信装置的结构示意图。
具体实施方式
下面结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供的方法可用于各种通信系统。例如该通信系统可以为长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)通信系统、无线保真(wireless-fidelity，WiFi)系统、第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的通信系统、未来演进的通信系统、或多种系统融合的系统等，不予限制。其中，5G还可以称为新无线(new radio，NR)。下面以图1所示通信系统10为例，对本申请实施例提供的方法进行描述。
如图1所示，为本申请实施例提供的通信系统10的架构示意图。图1中，通信系统10可以包括一个或多个网络设备101(仅示出了1个)以及可以与网络设备101进行通信的终端102至终端104。图1仅为示意图，并不构成对本申请提供的技术方案的适用场景的限定。
在图1中，网络设备可以为终端提供无线接入服务。具体来说，每个网络设备都对应一个服务覆盖区域，进入该区域的终端可通过Uu口与网络设备通信，以此来接收网络设备提供的无线接入服务。可选地，该服务覆盖区域可以包括一个或多个小区。终端与网络设备之间可以通过Uu口链路通信。其中，根据Uu口链路上传输的数据的方向可以分为上行链路(uplink，UL)和下行链路(downlink，DL)。UL上可以传输从终端向网络设备发送的上行数据，DL上可以传输从网络设备向终端发送的下行数据。例如：图1中，终端103位于网络设备101的覆盖区域内，网络设备101可以通过DL向终端103发送下行数据，终端103可通过UL向网络设备101发送上行数据。
本申请实施例中的网络设备，例如：网络设备101可以是任意一种具有无线收发功能的设备。包括但不限于：LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或收发点(transmission receiving point/transmission reception point，TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的TRP。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。网络设备还可以是集中单元(centralized unit，CU)，和/或，分布单元(distributed unit，DU)。本申请实施例中，用于实现网络设备的功能的装置可以是网络设备；也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中或者和网络设备匹配使用。以下以网络设备为基站为例进行说明。所述多个网络设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端进行通信，也可以通过中继站与终端进行通信。
本申请实施例中的终端，例如：终端102、终端103或终端104是一种具有无线收发功能的设备。终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端还可以称为终端设备，终端设备可以是用户设备(user equipment，UE)，其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、或智慧家庭(smart home)中的无线终端等等。本申请实施例中，用于实现终端的功能的装置可以是终端；也可以是能够支持终端实现该功能的装置，例如芯片系统，该装置可以被安装在终端中或者和终端匹配使用。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端为例，描述本申请实施例提供的技术方案。本申请实施例中，终端可以与不同技术的多个基站进行通信，例如，终端可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
作为示例而非限定，在本申请中，终端可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。例如，可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能的设备。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能的设备，例如：智能手表或智能眼镜等，以及包括只专注于某一类应用功能，需要和其它设备如智能手机配合使用的设备，如各类进行体征监测的智能手环、智能首饰等。
在本申请中，终端可以是物联网(internet of things，IoT)系统中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请中的终端可以是机器类型通信(machine type communication，MTC)中的终端。本申请的终端可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。
图1所示的通信系统10仅用于举例，并非用于限制本申请的技术方案。本领域的技术人员应当明白，在具体实现过程中，通信系统10还可以包括其他设备，同时也可根据具体需要来确定网络设备和终端的数量，不予限制。
可选的，本申请实施例图1中的各网元，例如网络设备101、终端102、终端103或终端104，可以是一个装置内的一个功能模块。可以理解的是，该功能模块既可以是硬件设备中的元件，例如，终端或网络设备中的通信芯片或通信部件，也可以是在硬件上运行的软件功能模块，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，图1中的各网元均可以通过图2中的通信装置20来实现。图2所示为可适 用于本申请实施例的通信装置的硬件结构示意图。该通信装置20包括至少一个处理器201和至少一个通信接口204，用于实现本申请实施例提供的方法。该通信装置20还可以包括通信线路202和存储器203。
处理器201可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路202可包括一通路，在上述组件之间传送信息，例如总线。
通信接口204，用于与其他设备或通信网络通信。通信接口204可以是任何收发器一类的装置，如可以是以太网接口、无线接入网(radio access network，RAN)接口、无线局域网(wireless local area networks，WLAN)接口、收发器、管脚、总线、或收发电路等。
存储器203可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路202与处理器201相耦合。存储器203也可以和处理器201集成在一起。本申请实施例提供的存储器通常可以具有非易失性。其中，存储器203用于存储执行本申请实施例提供的方案所涉及的计算机执行指令，并由处理器201来控制执行。处理器201用于执行存储器203中存储的计算机执行指令，从而实现本申请实施例提供的方法。
本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。
作为一种实施例，处理器201可以包括一个或多个CPU，例如图2中的CPU0和CPU1。
作为一种实施例，通信装置20可以包括多个处理器，例如图2中的处理器201和处理器207。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
作为一种实施例，通信装置20还可以包括输出设备205和/或输入设备206。输出设备205和处理器201耦合，可以以多种方式来显示信息。例如，输出设备205可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备206和处理器201耦合，可以以多种方式接收用户的输入。例如，输入设备206可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的通信装置20可以是一个通用设备或者是一个专用设备。本申请实施例不限定通信装置20的类型。
下面结合图1和图2对本申请实施例提供的通信方法进行具体阐述。
需要说明的是，本申请实施例中，传输可以根据具体的上下文理解为发送和/或接收。传输可以是名词，也可以是动词。在不强调动作的执行主体时，常常用传输代替发送和/或接收。例如，短语传输PUCCH，从终端的角度来看，可以理解为发送PUCCH，而从基站的角度来看，可以理解为接收PUCCH。另外，需要指出的是传输PUCCH，本领域技术人员可以理解为传输承载在PUCCH中的信息。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
需要说明的是，在本申请实施例中，“/”可以表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；“和/或”可以用于描述关联对象存在三种关系，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这三种情况，其中A，B可以是单数或者复数。
为了便于描述本申请实施例的技术方案，在本申请实施例中，可以采用“第一”、“第二”等字样对功能相同或相似的技术特征进行区分。该“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。在本申请实施例中，“示例性的”或者“例如”等词用于表示例子、例证或说明，被描述为“示例性的”或者“例如”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。使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。
需要说明的是，在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
可以理解的，本申请实施例中同一个步骤或者具有相同功能的步骤或者技术特征在不同实施例之间可以互相参考借鉴。
可以理解的，本申请实施例中，网络设备和/或终端可以执行本申请实施例中的部分或全部步骤，这些步骤仅是示例，本申请实施例还可以执行其它步骤或者各种步骤的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部步骤。
在本申请实施例中，通信方法的执行主体的具体结构，本申请实施例并未特别限定，只要能够实现本申请实施例的提供的方法即可。例如，本申请实施例提供的通信方法的执行主体可以是网络设备，或者为应用于网络设备中的部件，例如，芯片，本申请对此不进行限定。或者，本申请实施例提供的通信方法的执行主体可以是终端，或者为应用于终端中的部件，例如，芯片，本申请对此不进行限定。下述实施例以通信方法的执行主体分别为网络设备、终端为例进行描述。
可以理解的，本申请实施例中，一个载波可以对应一个小区(cell)。一个小区可 以对应至少一个载波。小区是一种逻辑上的概念，是移动通信网络中为终端提供服务的逻辑单元，而小区的广播信号或数据信号需要承载在对应的载波上进行传输。本申请对载波和小区的具体对应关系并不做任何限制。而对于一个载波对应一个小区的情况，本申请中以“载波”来举例说明的地方，其中的“载波”可以和“小区”互相替换，例如，“多个载波”可以用“多个小区”替换，在此统一说明，后面不再赘述。
如图3所示，为本申请实施例提供的一种通信方法，该通信方法包括S301-S302。
S301：网络设备向终端发送第一指示信息。
本申请实施例中，网络设备可以是图1所示通信系统10中的网络设备101。终端可以为图1所示通信系统10中的任一终端，例如，终端102、终端103或终端104。
本申请实施例中，第一指示信息可以用于指示终端与网络设备通信的多个载波。该多个载波可以包括在一个PUCCH组内，也可以包括在多个PUCCH组内。PUCCH组可以是协议定义的，也可以是网络设备配置的。每个PUCCH组中有至少一个预设的载波可以用于传输PUCCH。例如，若PUCCH组的数量为1，则该PUCCH组内预设的用于传输PUCCH的载波可以为主小区(primary cell，PCell)对应的载波。若PUCCH组的数量大于1，其中一个PUCCH组为主PUCCH组(primary PUCCH group)，该组内预设的用于传输PUCCH的载波可以至少包括PCell对应的载波。其他PUCCH组为辅PUCCH组(secondary PUCCH group)，该组内预设的用于传输PUCCH的载波可以至少包括PUCCH辅小区(PUCCH secondary cell，PUCCH SCell)对应的载波。
一种可能的实现方式，第一指示信息包括在无线资源控制(radio resource control，RRC)消息中。例如，第一指示信息包括在上行链路频率信息(FrequencyInfoUL)中。第一指示信息可以称为载波配置信息，不予限制。
需要说明的是，该多个载波中的至少两个载波能够用于终端发送PUCCH。
对应的，终端接收来自网络设备的第一指示信息。可以理解的，终端接收到第一指示信息后，可以根据第一指示信息确定与网络设备通信的多个载波。
S302：终端在多个载波中的至少一个载波上进行N次PUCCH重复发送。
本申请实施例中，S302所指的至少一个载波可以对应以下两种情况，下面进行具体阐述。
情况1：至少一个载波包括第一载波，也就是说，在本实现方式中，承载终端的N次PUCCH重复发送的时间单元位于同一个载波上，即第一载波上。
对于情况1，承载终端的第N次PUCCH发送的时间单元是第一载波上的候选第N次PUCCH发送的时间单元。第一载波为多个载波中，承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波。N为大于1的整数。
其中，承载终端的第N次PUCCH发送的时间单元可以理解为终端实际发送第N次PUCCH的时间单元。第一载波上的候选第N次PUCCH发送的时间单元可以理解为若第N次PUCCH在第一载波上发送，则第一载波上发送第N次PUCCH的时间单元。当然在情况1中，因为N次PUCCH都在一个载波上发送，第一载波上的候选第N次PUCCH发送的时间单元还可以理解为若N次PUCCH都在第一载波上发送，则第一载波上发送第N次PUCCH的时间单元。
示例性的，如图4A所示，为载波1、载波2和载波3上的时间单元示意图，上述 多个载波包括载波1、载波2和载波3。图4A中，载波1上的时间单元0，时间单元1，以及时间单元3至时间单元6为下行时间单元，可以用于传输下行数据，载波1上的时间单元2，以及时间单元7至时间单元9为上行时间单元，可以用于传输上行数据。载波2上的时间单元0，时间单元3至时间单元7，以及时间单元9为下行时间单元，可以用于传输下行数据，载波2上的时间单元1至时间单元2，以及时间单元8为上行时间单元，可以用于传输上行数据。载波3上的时间单元0至时间单元3，时间单元5，以及时间单元7至时间单元9为下行时间单元，可以用于传输下行数据，载波3上的时间单元4和时间单元6为上行时间单元，可以用于传输上行数据。以N等于2，即终端进行2次PUCCH重复发送为例，若2次PUCCH都在载波1上发送，则载波1上的候选第1次PUCCH发送的时间单元为时间单元2，载波1上的候选第2次PUCCH发送的时间单元为时间单元7。若2次PUCCH都在载波2上发送，则载波2上的候选第1次PUCCH发送的时间单元为时间单元1，载波2上的候选第2次PUCCH发送的时间单元为时间单元2。若2次PUCCH都在载波3上发送，则载波3上的候选第1次PUCCH发送的时间单元为时间单元4，载波3上的候选第2次PUCCH发送的时间单元为时间单元6。
需要说明的是，本申请实施例中的时间单元包括至少一个时域符号，例如，正交频分复用(orthogonal frequency division multiplexing，OFDM)符号。时域符号可以为上行符号、下行符号或者灵活符号。也就是说，时间单元包括的符号可以都是上行符号(本申请中称为上行时间单元)，或者都是下行符号(本申请中称为下行时间单元)，或者都是灵活符号，或者部分是下行符号，或者部分是上行符号，或者部分是灵活符号。在具体应用中，时间单元可以为时隙、子时隙、子帧等。可以理解的，图4A中的时间单元中包括的符号类型都相同。例如，载波1上的时间单元0包括的都是下行符号，载波2上的时间单元1包括的都是上行符号。应理解，载波上的时间单元的长度是根据载波的子载波间隔(subcarrier spacing)确定的。
应理解，本申请实施例中，PUCCH承载在时间单元中对应的符号上，该对应的符号为上行符号或灵活符号。进一步的，若承载PUCCH承载在多个符号上，该多个符号可以为连续符号。从另一个角度理解，当承载终端的PUCCH发送时间单元或者承载终端的候选PUCCH发送的时间单元所用到的对应符号为上行符号或者灵活符号，且为连续符号时，该时间单元可以用于承载该PUCCH。其中，该灵活符号不是传输同步信号块(synchronization signal block，SSB)的符号。本申请实施例中，对于N次PUCCH重复，PUCCH在每个时间单元中的时域位置可以相同，也可以不同，本申请实施例不予限制。PUCCH上可以承载CSI、SR或HARQ-ACK消息等上行控制信息(uplink control information，UCI)。
可以理解的，若第一载波为第一指示信息指示的多个载波中，承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波，则多个载波中，终端在第一载波上可以最早完成N次PUCCH重复发送。
示例性的，以图4A所示的载波1、载波2和载波3上的时间单元为例，若N等于2，即终端进行2次PUCCH重复发送，根据上述对载波1、载波2和载波3上的候选第1次PUCCH发送的时间单元和候选第2次PUCCH发送的时间单元的描述可知， 载波1上的候选第2次PUCCH发送的时间单元为时间单元7，载波2上的候选第2次PUCCH发送的时间单元为时间单元2，载波3上载波3上的候选第2次PUCCH发送的时间单元为时间单元6。所以，载波1、载波2和载波3中，承载终端的候选第2次PUCCH发送的时间单元中结束位置最早的载波为载波2，也就是说，终端在载波2上可以最早完成2次PUCCH重复发送。因此，第一载波为载波2。
一种可能的实现方式，多个载波中，承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，第一载波为至少两个载波中，标识最小的载波。也就是说，多个载波中，最早完成N次PUCCH重复发送的载波的数量大于1，终端可以将最早完成N次PUCCH重复发送的载波中，标识最小的载波确定为第一载波。该标识可以理解为是载波标识或者小区标识。
示例性的，如图4B所示，为载波1、载波2和载波3上的时间单元示意图，上述多个载波包括载波1、载波2和载波3。图4B中，载波1上的时间单元0，时间单元1，以及时间单元3至时间单元6为下行时间单元，可以用于传输下行数据，载波1上的时间单元2，以及时间单元7至时间单元9为上行时间单元，可以用于传输上行数据。载波2上的时间单元0，时间单元3至时间单元7，以及时间单元9为下行时间单元，可以用于传输下行数据，载波2上的时间单元1至时间单元2，以及时间单元8为上行时间单元，可以用于传输上行数据。载波3上的时间单元0至时间单元3，时间单元5，以及时间单元7至时间单元8为下行时间单元，可以用于传输下行数据，载波3上的时间单元4、时间单元6和时间单元9为上行时间单元，可以用于传输上行数据。若N等于3，即终端进行3次PUCCH重复发送，对于载波1，承载终端的候选第3次PUCCH发送的时间单元为时间单元8。对于载波2，承载终端的候选第3次PUCCH发送的时间单元也为时间单元8。对于载波3，承载终端的候选第3次PUCCH发送的时间单元为时间单元9。因此，载波1或载波2都可以作为第一载波。若载波1的载波标识或小区标识小于载波2，则第一载波为载波1。
可以理解的，虽然在上述对情况1的介绍中多个载波中的每个载波上的PUCCH重复次数相同，但是在具体应用中，多个载波中每个载波上的PUCCH重复次数可以不同，也就是说，多个载波中，每个载波对应的N值不同。在这种情况下，终端可以将多个载波中，最早完成在对应载波上全部PUCCH重复发送的载波确定为第一载波。
示例性的，以图4A所示的载波1、载波2和载波3上的时间单元示意图为例，若载波1上PUCCH重复次数为4，载波2上PUCCH重复次数为3，载波3上PUCCH重复次数为2，则载波1上的候选第4次PUCCH发送的时间单元为时间单元9，载波2上的候选第3次PUCCH发送的时间单元为时间单元8，载波3上的候选第2次PUCCH发送的时间单元为时间单元6。载波3为载波1、载波2和载波3中，最早完成全部PUCCH重复发送的载波。因此，第一载波为载波3。
情况2：至少一个载波为多个载波，例如，至少一个载波包括第一载波和第二载波。也就是说，承载终端的N次PUCCH重复发送的时间单元可以位于同一个载波上，也可以位于不同载波上。换句话说，对于终端N次PUCCH重复发送中的至少一次、甚至是每次PUCCH发送，终端进行PUCCH发送的载波都可以是独立确定的。终端在该载波上进行的与该载波对应次数的PUCCH发送的结束时间，在多个载波中是最早 的。
对于情况2，承载终端的第N次PUCCH发送的时间单元是第一载波上的候选第N次PUCCH发送的时间单元，承载终端的第n次PUCCH发送的时间单元是第二载波上的候选第n次PUCCH发送的时间单元。其中，第一载波为多个载波中，承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波。第二载波为多个载波中，承载终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波。n为大于或者等于1，并且小于N的整数。N为大于1的整数。进一步的，第一载波和第二载波可以相同也可以不同。进行第(n+1)次PUCCH发送的第二载波与进行第n次PUCCH发送的第二载波可以相同也可以不同。
其中，终端的第n次PUCCH发送所承载的时间单元可以理解为终端实际发送第n次PUCCH的时间单元。第一载波上的候选第N次PUCCH发送的时间单元可以理解为对于终端的第N次PUCCH发送，若该第N次PUCCH是在第一载波上发送的，则第一载波上发送第N次PUCCH的时间单元。第二载波上的候选第n次PUCCH发送的时间单元可以理解为对于终端的第n次PUCCH发送，若第n次PUCCH是在第二载波上发送的，第二载波上发送第n次PUCCH的时间单元。
示例性的，以图4A所示的载波1、载波2和载波3上的时间单元示意图为例，若N等于3，即终端进行3次PUCCH重复发送，对于终端的第1次PUCCH发送，载波上1的候选第1次PUCCH发送的时间单元为时间单元2，载波2上的候选第1次PUCCH发送的时间单元为时间单元1，载波上3的候选第1次PUCCH发送的时间单元为时间单元4，则承载终端的第1次PUCCH发送的时间单元可以是载波2上的时间单元1。对于终端的第2次PUCCH发送，载波上1的候选第2次PUCCH发送的时间单元仍为时间单元2(因为在终端在载波2上的第1次PUCCH发送的结束位置要早于或者等于载波1的时间单元2的起始位置)，载波上2的候选第2次PUCCH发送的时间单元为时间单元2，载波上3的候选第2次PUCCH发送的时间单元仍为时间单元4，则承载终端的第2次PUCCH发送的时间单元可以是载波2上的时间单元2或者载波1上的时间单元2。对于终端的第3次PUCCH发送，载波上1的候选第3次PUCCH发送的时间单元为时间单元7，载波上2的候选第3次PUCCH发送的时间单元为时间单元8，载波上3的候选第3次PUCCH发送的时间单元为时间单元4，则承载终端的第3次PUCCH发送的时间单元可以是载波3上的时间单元4。
可以理解的，终端在为每次PUCCH发送确定载波的过程中，可以按照时间先后顺序，逐个确定每个时间单元是否可以用于传输PUCCH，以避免漏掉某个时间单元，导致PUCCH发送的时延增加。换句话说，终端通常假设PUCCH的重复在时域上是连续的，即终端通常假设PUCCH是在连续的时间单元上重复发送的，因此，终端在为每次PUCCH发送确定载波的过程中，按照时间先后顺序，逐个确定每个时间单元是否可以传输PUCCH。示例性的，当确定一个时间单元，例如，时间单元1是否可以传输PUCCH时，终端可以确定多个载波中的每个载波上的时间单元1是否可以传输PUCCH。若多个载波中的每个载波上的时间单元1都不能传输PUCCH，则终端确定每个载波上的时间单元1的下一个时间单元是否可以传输PUCCH。应理解，实际发送时的时间单元可以是不连续的。
需要说明的是，按照时间先后顺序还可以理解为，是按照时间单元所在的时域位置的顺序，或者按照PUCCH在时间单元中的位置先后顺序，位置可以是起始位置或者结束位置。
例如，终端在为第1次PUCCH发送确定载波时，先确定每个载波的第一个时间单元上是否可以传输该PUCCH，若每个载波的第一个时间单元上都不能传输该PUCCH(这里假设每个载波的第一个时间单元的开始位置是相同的，也即每个载波的第一个时间单元的开始位置在时域上对齐)，终端可以在每个载波的第二个时间单元上确定是否可以传输该PUCCH，以此类推，直到终端找到可以用于传输该PUCCH的时间单元，终端可以确定在该载波上进行第1次PUCCH发送。后续，终端可以以类似的方法确定进行第2次PUCCH发送的载波…进行第N次PUCCH发送的载波。
示例性的，以图4A所示的载波1、载波2和载波3上的时间单元示意图为例，若N等于3，终端先确定第1次PUCCH发送的载波，对于时间单元0，载波1、载波2和载波3的时间单元0都是下行时间单元，不能进行第1次PUCCH发送。对于时间单元1，载波1和载波3上的时间单元1是下行时间单元，不能进行第1次PUCCH发送，但载波2的时间单元1是上行时间单元，可以进行第1次PUCCH发送，则终端确定在载波2上的时间单元1进行第1次PUCCH发送。接着，终端确定第2次PUCCH发送的载波，对于时间单元2，载波1和载波2上的时间单元2为上行时间单元，可以进行第2次PUCCH发送，载波3上的时间单元2为下行时间单元，不能进行第2次PUCCH发送，则终端确定在载波1或载波2上的时间单元2上进行第2次PUCCH发送。最后，终端确定第3次PUCCH发送的载波，对于时间单元3，载波1、载波2和载波3上的时间单元3都是下行时间单元，不能进行第3次PUCCH发送。对于时间单元4，载波1和载波2上的时间单元4都是下行时间单元，不能进行第3次PUCCH发送，载波3上的时间单元4是上行时间单元，可以进行第3次PUCCH发送，则终端确定在载波3上的时间单元4进行第3次PUCCH发送。
进一步的，若n为大于或者等于2，并且小于N的整数，多个载波中，承载终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，若至少两个载波中包括承载第(n-1)次PUCCH发送的时间单元的载波，则第二载波为承载第(n-1)次PUCCH发送的时间单元的载波。这样可以减少载波的切换次数，降低网络设备和终端的复杂度。
示例性的，以图4A所示的载波1、载波2和载波3上的时间单元示意图为例，若N等于3，即终端进行3次PUCCH重复发送，由情况2中的上述示例可知，载波1和载波2上的时间单元2为上行时间单元，可以进行第2次PUCCH发送，并且承载第1次PUCCH发送的时间单元是载波2上的时间单元1，则承载第2次PUCCH发送的时间单元可以是载波2上的时间单元2。也就是或，终端可以在载波2上进行第2次PUCCH发送，这样终端完成第1次PUCCH发送后，就不需要切换到载波1上进行第2次PUCCH发送，降低网络设备和终端的复杂度。
可以理解的，情况1或情况2的上述描述中，至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。在具体应用中，至少一个载波包括两个或者两个以上的载波，其中只少两个载波上承载PUCCH的时间单元的长度可以不同。例如，至少 一个载波中载波的子载波间隔(subcarrier spacing，SCS)不同的情况下，至少一个载波中的载波上承载PUCCH的时间单元的长度不同。子载波间隔还可以称为子载波间距。子载波间隔越大，时间单元的长度越短，子载波间隔越小，时间单元的长度越长。对于子载波间隔不同的情况，时间单元的长度也不同，因此，一个载波上承载一次PUCCH发送的时间单元的长度可以等于另外一个载波上承载多次PUCCH发送的时间单元的长度，此时，一个载波上的一次PUCCH重复，如果在另外一个载波上传输，可以变成多次PUCCH重复发送。或者，一个载波上承载多次PUCCH发送的时间单元的长度可以等于另外一个载波上承载一次PUCCH发送的时间单元的长度，此时，一个载波上的多次PUCCH重复，在另外一个载波上可以变成一次PUCCH重复发送。
如图5所示，为载波1、载波2和载波3上的时间单元示意图。图5中，载波1的子载波间隔为30千赫兹(kHz)，载波2的子载波间隔为60kHz，载波3的子载波间隔为15kHz。载波1的时间单元长度是载波2的2倍，载波3的时间单元长度是载波1的2倍。若N等于4，则终端在载波1的时间单元0上进行第1次PUCCH发送，在载波2的时间单元2上进行第2次PUCCH发送，在载波2的时间间隔3上进行第3次PUCCH发送，在载波3的时间单元1上进行第4次PUCCH发送。可以理解的，虽然载波2的时间单元2和时间单元3的长度总和等于载波1上的一个时间单元的长度，但是在载波2的时间单元2和时间单元3进行了两次PUCCH发送。虽然载波3的时间单元1的长度等于载波1上的2个时间单元的长度，但是在载波3的时间单元1上进行了一次PUCCH发送。
可以理解的，若确定的至少一个载波中的载波上承载PUCCH的时间单元的长度不同，会增加网络设备和终端的复杂度。因此，在确定用于进行N次PUCCH重复发送的载波时，终端可以优先选择与进行第1次PUCCH发送的载波的子载波间隔相同的载波，或者，终端可以优先选择与主小区(primary cell，PCell)对应的载波的子载波间隔相同的载波，或者，终端可以优先选择与前一次PUCCH发送的载波的子载波间隔相同的载波。
对应的，网络设备在多个载波中的至少一个载波上进行N次PUCCH重复接收。
其中，至少一个载波的介绍可以参考S302中对应的描述。不同的是，在S302中，上述对载波的描述是以终端的角度来描述的。对于网络设备在多个载波中的至少一个载波上进行N次PUUCH重复接收的情况，可以以网络设备的角度来描述。以第一载波为例，第一载波还可以描述为多个载波中，承载网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波。
可以理解的，上述实施例中，网络设备和终端可以分别确定至少一个载波。后续，终端可以在至少一个载波上进行N次PUCCH重复发送，网络设备可以在至少一个载波上进行N次PUCCH重复接收。在具体应用中，网络设备确定了至少一个载波后，可以向终端指示该至少一个载波，例如，网络设备向终端发送指示该至少一个载波的指示信息。这样终端接收到该指示信息后，可以在至少一个载波上进行N次PUCCH重复发送。网络设备确定了至少一个载波后，也可以向终端指示该至少一个载波中，进行第1次PUCCH发送的载波，例如，网络设备向终端发送指示进行第1次PUCCH发送的载波的指示信息。这样终端接收到该指示信息后，可以采用上述S302中的方法 确定至少一个载波中，其他N-1次PUCCH发送的载波，并在至少一个载波上进行N次PUCCH重复发送。
一种可能的实现方式，S302之前，网络设备向终端发送第二指示信息。其中，第二指示信息可以用于指示进行PUCCH重复传输的载波为一个还是多个。若第二指示信息指示进行PUCCH重复传输的载波为1个，则终端在第一载波上进行N次PUCCH重复发送。若第二指示信息指示进行PUCCH重复传输的载波为多个，则终端在第一载波和第二载波上进行N次PUCCH重复发送。
示例性的，第二指示信息包括1比特，若该1比特为0，则第二指示信息指示进行PUCCH重复传输的载波为1个，若该1比特为1，则第二指示信息指示进行PUCCH重复传输的载波为多个，反之亦然。
可以理解的，第二指示信息也可以用于指示终端进行N次PUCCH发送的方式。示例性的，第二指示信息包括1比特，若该1比特为0，则第二指示信息指示通过情况1中介绍的至少一个载波进行N次PUCCH发送，若该1比特为1，则第二指示信息指示通过情况2中介绍的至少一个载波进行N次PUCCH发送，反之亦然。
一种可能的实现方式，S302之前，网络设备向终端发送第三指示信息。其中，第三指示信息可以用于指示承载终端的第1次PUCCH发送的时间单元的时域位置。终端接收到该第三指示信息后，可以将该时域位置所在的时间单元确定为承载第1次PUCCH发送的时间单元。终端也可以以该时域位置为参考(例如，当该时域位置所在的时间单元为下行时间单元，无法发送PUCCH时，可以将该时域位置作为参考时域位置)，在该参考时域位置之后的时间单元中，确定承载第1次PUCCH发送的时间单元。
进一步的，第三指示信息还包括时间间隔信息。其中，时间间隔信息用于指示承载物理下行共享信道(physical downlink shared channel，PDSCH)的时间单元与承载第1次PUCCH的时间单元之间的时间间隔。第三指示信息可以包括在DCI中。
可以理解的，终端接收到第三指示信息后，可以根据承载PDSCH的时间单元和该时间间隔，得到承载终端的第1次PUCCH发送的时间单元的时域位置。例如，终端将承载PDSCH的时间单元的索引与该时间间隔相加，得到承载终端的第1次PUCCH发送的时间单元的时域位置。终端也可以以该时域位置为参考(例如，当该时域位置所在的时间单元为下行时间单元，无法发送PUCCH时，可以将该时域位置作为参考时域位置)，在该参考时域位置之后的时间单元中，确定承载第1次PUCCH发送的时间单元。其中，承载PDSCH的时间单元可以是网络设备配置并指示给终端的。指示承载PDSCH的时间单元的指示信息可以包括在第三指示信息中，也可以是网络设备通过其他信令下发的，例如，通过RRC消息下发的。
一种可能的实现方式，S302之前，网络设备向终端发送第四指示信息。第四指示信息包括一次PUCCH发送在一个时间单元中的起始位置和一次PUCCH的时域长度。在这种情况下，终端接收到第四指示信息后，可以根据第四指示信息确定该一次PUCCH发送在一个时间单元中的时域位置，后续终端可以在该时域位置上进行一次PUCCH重复发送。或者，第四指示信息包括第1次PUCCH在时域上的起始位置和一次PUCCH的时域长度。在这种情况下，终端接收到第四指示信息后，可以根据第四 指示信息确定第1次PUCCH发送所承载的时间单元的时域位置，后续终端可以在该时域位置上进行第1次PUCCH重复发送。
基于图3所示的方法，终端可以在网络设备指示的多个载波中，将承载终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波确定为用于进行N次PUCCH重复发送的载波，以便终端尽快完成N次PUCCH重复发送，降低PUCCH发送的时延。
其中，上述S301-S302中的网络设备或者终端的动作可以由图2所示的通信装置20中的处理器201调用存储器203中存储的应用程序代码来执行，本申请实施例对此不做任何限制。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，上述终端或者网络设备等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法操作，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端或者网络设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
比如，以采用集成的方式划分各个功能模块的情况下，图6示出了一种通信装置60的结构示意图。通信装置60包括收发模块601和处理模块602。
示例性地，通信装置60用于实现终端的功能。通信装置60例如为图3所示的实施例所述的终端。
在本申请实施例中，通信装置60可以是终端，也可以是应用于终端中的芯片或者其他具有上述终端功能的组合器件、或部件等。当通信装置60是终端时，收发模块601可以是收发器，收发器可以包括天线和射频电路等，处理模块602可以是处理器(或者，处理电路)，例如基带处理器，基带处理器中可以包括一个或多个CPU。当通信装置60是具有上述终端功能的部件时，收发模块601可以是射频单元，处理模块602可以是处理器(或者，处理电路)，例如基带处理器。当通信装置60是芯片系统时，收发模块601可以是芯片(例如基带芯片)的输入输出接口，处理模块602可以是芯片系统的处理器(或者，处理电路)，可以包括一个或多个中央处理单元。应理解，本申请实施例中的收发模块601可以由收发器或收发器相关电路组件实现，处理模块602可以由处理器或处理器相关电路组件(或者，称为处理电路)实现。
例如，收发模块601可以用于执行图3所示的实施例中由终端所执行的全部收发操作，例如S301，和/或用于支持本文所描述的技术的其它过程。处理模块602可以用于执行图3所示的实施例中由终端所执行的除了收发操作之外的全部操作，例如S302，和/或用于支持本文所描述的技术的其它过程。
其中，收发模块601，用于接收来自网络设备的第一指示信息，该第一指示信息用于指示该通信装置60与该网络设备通信的多个载波。
处理模块602，用于控制收发模块课601在该多个载波中的至少一个载波上进行N次PUCCH重复发送，其中，该至少一个载波包括第一载波，该通信装置60的第N次PUCCH发送所承载的时间单元是该第一载波上的候选第N次PUCCH发送的时间单元，该第一载波为该多个载波中，承载该通信装置60的候选第N次PUCCH发送的时间单元中结束位置最早的载波，N为大于1的整数。
一种可能的实现方式，承载该通信装置60的N次PUCCH发送的时间单元位于同一个载波。
一种可能的实现方式，该多个载波中，承载该通信装置60的候选第N次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，该第一载波为该至少两个载波中，载波标识最小的载波。
一种可能的实现方式，该至少一个载波还包括第二载波，该通信装置60的第n次PUCCH发送所承载的时间单元是该第二载波上的候选第n次PUCCH发送的时间单元，该第二载波为该多个载波中，承载该通信装置60的候选第n次PUCCH发送的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
一种可能的实现方式，该多个载波中，承载该通信装置60的候选第(n+1)次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，若该至少两个载波中包括承载第n次PUCCH发送的时间单元的载波，则该第二载波为该承载第n次PUCCH发送的时间单元的载波。
一种可能的实现方式，该至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
一种可能的实现方式，该多个载波中，每个载波上的PUCCH重复次数相同。
一种可能的实现方式，该至少一个载波中，PUCCH在时间单元中的时域位置对应的符号为上行符号或灵活符号。
一种可能的实现方式，收发模块601，还用于接收来自该网络设备的第二指示信息，该第二指示信息用于指示进行PUCCH重复传输的载波的数量。
当用于实现终端的功能时，关于通信装置60所能实现的其他功能，可参考图3所示的实施例的相关介绍，不多赘述。
或者，示例性地，通信装置60用于实现网络设备的功能。通信装置60例如为图3所示的实施例所述的网络设备。
在本申请实施例中，通信装置60可以是网络设备，也可以是应用于网络设备中的芯片或者其他具有上述网络设备功能的组合器件、或部件等。当通信装置60是网络设备时，收发模块601可以是收发器，收发器可以包括天线和射频电路等，处理模块602可以是处理器(或者，处理电路)，例如基带处理器，基带处理器中可以包括一个或多个CPU。当通信装置60是具有上述网络设备功能的部件时，收发模块601可以是射频单元，处理模块602可以是处理器(或者，处理电路)，例如基带处理器。当通信装置60是芯片系统时，收发模块601可以是芯片(例如基带芯片)的输入输出接口，处理模块602可以是芯片系统的处理器(或者，处理电路)，可以包括一个或多 个中央处理单元。应理解，本申请实施例中的收发模块601可以由收发器或收发器相关电路组件实现，处理模块602可以由处理器或处理器相关电路组件(或者，称为处理电路)实现。
例如，收发模块601可以用于执行图3所示的实施例中由网络设备所执行的全部收发操作，例如S301，和/或用于支持本文所描述的技术的其它过程。处理模块602可以用于执行图3所示的实施例中由终端所执行的除了收发操作之外的全部操作，例如S302，和/或用于支持本文所描述的技术的其它过程。
其中，收发模块601，用于向终端发送第一指示信息，该第一指示信息用于指示该终端与该通信装置60通信的多个载波。
处理模块602，用于控制收发模块601在该多个载波中的至少一个载波上进行N次PUCCH重复接收，其中，该至少一个载波包括第一载波，该通信装置60的第N次PUCCH接收所承载的时间单元是该第一载波上的候选第N次PUCCH接收的时间单元，该第一载波为该多个载波中，承载该通信装置60的候选第N次PUCCH接收的时间单元中结束位置最早的载波，N为大于1的整数。
一种可能的实现方式，承载该通信装置60的N次PUCCH接收的时间单元位于同一个载波。
一种可能的实现方式，该多个载波中，承载该通信装置60的候选第N次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，该第一载波为该至少两个载波中，载波标识最小的载波。
一种可能的实现方式，该至少一个载波还包括第二载波，该通信装置60的第n次PUCCH接收所承载的时间单元是该第二载波上的候选第n次PUCCH接收的时间单元，该第二载波为该多个载波中，承载该通信装置60的候选第n次PUCCH接收的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
一种可能的实现方式，该多个载波中，承载该通信装置60的候选第(n+1)次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，若该至少两个载波中包括承载第n次PUCCH接收的时间单元的载波，则该第二载波为该承载第n次PUCCH接收的时间单元的载波。
一种可能的实现方式，该至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
一种可能的实现方式，该多个载波中，每个载波上的PUCCH重复次数相同。
一种可能的实现方式，该至少一个载波中，PUCCH在时间单元中的时域位置对应的符号为上行符号或灵活符号。
一种可能的实现方式，收发模块601，还用于向该终端发送第二指示信息，该第二指示信息用于指示进行PUCCH重复传输的载波的数量。
当用于实现网络设备的功能时，关于通信装置60所能实现的其他功能，可参考图3所示的实施例的相关介绍，不多赘述。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模 块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种通信方法，其特征在于，所述方法包括：
    终端接收来自网络设备的第一指示信息，所述第一指示信息用于指示所述终端与所述网络设备通信的多个载波；
    所述终端在所述多个载波中的至少一个载波上进行N次物理上行控制信道PUCCH重复发送，其中，所述至少一个载波包括第一载波，承载所述终端的第N次PUCCH发送的时间单元是所述第一载波上的候选第N次PUCCH发送的时间单元，所述第一载波为所述多个载波中，承载所述终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波，N为大于1的整数。
  2. 根据权利要求1所述的方法，其特征在于，承载所述终端的N次PUCCH发送的时间单元位于同一个载波。
  3. 根据权利要求1或2所述的方法，其特征在于，所述多个载波中，承载所述终端的候选第N次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，所述第一载波为所述至少两个载波中，载波标识最小的载波。
  4. 根据权利要求1所述的方法，其特征在于，所述至少一个载波还包括第二载波，承载所述终端的第n次PUCCH发送的时间单元是所述第二载波上的候选第n次PUCCH发送的时间单元，所述第二载波为所述多个载波中，承载所述终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
  5. 根据权利要求4所述的方法，其特征在于，所述多个载波中，承载所述终端的候选第n次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，
    若所述至少两个载波中包括承载第(n-1)次PUCCH发送的时间单元的载波，则所述第二载波为所述承载第(n-1)次PUCCH发送的时间单元的载波，n为大于或者等于2，并且小于N的整数。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，所述至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，所述多个载波中，每个载波上的PUCCH重复次数相同。
  8. 根据权利要求1-7中任一项所述的方法，其特征在于，所述至少一个载波中，所述PUCCH所承载在时间单元中对应的符号上，所述对应的符号为上行符号或灵活符号。
  9. 根据权利要求1-8中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端接收来自所述网络设备的第二指示信息，所述第二指示信息用于指示所述至少一个载波为一个或多个。
  10. 一种通信方法，其特征在于，所述方法包括：
    网络设备向终端发送第一指示信息，所述第一指示信息用于指示所述终端与所述网络设备通信的多个载波；
    所述网络设备在所述多个载波中的至少一个载波上进行N次物理上行控制信道PUCCH重复接收，其中，所述至少一个载波包括第一载波，承载所述网络设备的第N 次PUCCH接收的时间单元是所述第一载波上的候选第N次PUCCH接收的时间单元，所述第一载波为所述多个载波中，承载所述网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波，N为大于1的整数。
  11. 根据权利要求10所述的方法，其特征在于，承载所述网络设备的N次PUCCH接收的时间单元位于同一个载波。
  12. 根据权利要求10或11所述的方法，其特征在于，所述多个载波中，承载所述网络设备的候选第N次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，所述第一载波为所述至少两个载波中，载波标识最小的载波。
  13. 根据权利要求10所述的方法，其特征在于，所述至少一个载波还包括第二载波，承载所述网络设备的第n次PUCCH接收的时间单元是所述第二载波上的候选第n次PUCCH接收的时间单元，所述第二载波为所述多个载波中，承载所述网络设备的候选第n次PUCCH接收的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
  14. 根据权利要求13所述的方法，其特征在于，所述多个载波中，承载所述网络设备的候选第n次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，
    若所述至少两个载波中包括承载第(n-1)次PUCCH接收的时间单元的载波，则所述第二载波为所述承载第(n-1)次PUCCH接收的时间单元的载波，n为大于或者等于2，并且小于N的整数。
  15. 根据权利要求10-14中任一项所述的方法，其特征在于，所述至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
  16. 根据权利要求10-15中任一项所述的方法，其特征在于，所述多个载波中，每个载波上的PUCCH重复次数相同。
  17. 根据权利要求10-16中任一项所述的方法，其特征在于，所述至少一个载波中，所述PUCCH所承载在时间单元中对应的符号上，所述对应的符号为上行符号或灵活符号。
  18. 根据权利要求10-17中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端发送第二指示信息，所述第二指示信息用于指示所述至少一个载波为一个或多个。
  19. 一种通信装置，其特征在于，所述通信装置包括：收发模块和处理模块；
    所述处理模块，用于控制所述收发模块接收来自网络设备的第一指示信息，所述第一指示信息用于指示所述通信装置与所述网络设备通信的多个载波，以及，在所述多个载波中的至少一个载波上进行N次物理上行控制信道PUCCH重复发送，其中，所述至少一个载波包括第一载波，承载所述通信装置的第N次PUCCH发送的时间单元是所述第一载波上的候选第N次PUCCH发送的时间单元，所述第一载波为所述多个载波中，承载所述通信装置的候选第N次PUCCH发送的时间单元中结束位置最早的载波，N为大于1的整数。
  20. 根据权利要求19所述的通信装置，其特征在于，承载所述通信装置的N次PUCCH发送的时间单元位于同一个载波。
  21. 根据权利要求19或20所述的通信装置，其特征在于，所述多个载波中，承 载所述通信装置的候选第N次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，所述第一载波为所述至少两个载波中，载波标识最小的载波。
  22. 根据权利要求19所述的通信装置，其特征在于，所述至少一个载波还包括第二载波，承载所述通信装置的第n次PUCCH发送的时间单元是所述第二载波上的候选第n次PUCCH发送的时间单元，所述第二载波为所述多个载波中，承载所述通信装置的候选第n次PUCCH发送的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
  23. 根据权利要求22所述的通信装置，其特征在于，所述多个载波中，承载所述通信装置的候选第n次PUCCH发送的时间单元中结束位置最早的载波有至少两个载波，
    若所述至少两个载波中包括承载第(n-1)次PUCCH发送的时间单元的载波，则所述第二载波为所述承载第(n-1)次PUCCH发送的时间单元的载波，n为大于或者等于2，并且小于N的整数。
  24. 根据权利要求19-23中任一项所述的通信装置，其特征在于，所述至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
  25. 根据权利要求19-24中任一项所述的通信装置，其特征在于，所述多个载波中，每个载波上的PUCCH重复次数相同。
  26. 根据权利要求19-25中任一项所述的通信装置，其特征在于，所述至少一个载波中，所述PUCCH所承载在时间单元中对应的符号上，所述对应的符号为上行符号或灵活符号。
  27. 根据权利要求19-26中任一项所述的通信装置，其特征在于，
    所述收发模块，还用于接收来自所述网络设备的第二指示信息，所述第二指示信息用于指示所述至少一个载波为一个或者多个。
  28. 一种通信装置，其特征在于，所述通信装置包括：收发模块和处理模块；
    所述处理模块，用于控制所述收发模块向终端发送第一指示信息，所述第一指示信息用于指示所述终端与所述通信装置通信的多个载波；以及在所述多个载波中的至少一个载波上进行N次物理上行控制信道PUCCH重复接收，其中，所述至少一个载波包括第一载波，承载所述通信装置的第N次PUCCH接收的时间单元是所述第一载波上的候选第N次PUCCH接收的时间单元，所述第一载波为所述多个载波中，承载所述通信装置的候选第N次PUCCH接收的时间单元中结束位置最早的载波，N为大于1的整数。
  29. 根据权利要求28所述的通信装置，其特征在于，承载所述通信装置的N次PUCCH接收的时间单元位于同一个载波。
  30. 根据权利要求28或29所述的通信装置，其特征在于，所述多个载波中，承载所述通信装置的候选第N次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，所述第一载波为所述至少两个载波中，载波标识最小的载波。
  31. 根据权利要求28所述的通信装置，其特征在于，所述至少一个载波还包括第二载波，承载所述通信装置的第n次PUCCH接收的时间单元是所述第二载波上的候选第n次PUCCH接收的时间单元，所述第二载波为所述多个载波中，承载所述通信 装置的候选第n次PUCCH接收的时间单元中结束位置最早的载波，n为大于或者等于1，并且小于N的整数。
  32. 根据权利要求31所述的通信装置，其特征在于，所述多个载波中，承载所述通信装置的候选第n次PUCCH接收的时间单元中结束位置最早的载波有至少两个载波，
    若所述至少两个载波中包括承载第(n-1)次PUCCH接收的时间单元的载波，则所述第二载波为所述承载第(n-1)次PUCCH接收的时间单元的载波，n为大于或者等于2，并且小于N的整数。
  33. 根据权利要求28-32中任一项所述的通信装置，其特征在于，所述至少一个载波中的每个载波上承载PUCCH的时间单元的长度相同。
  34. 根据权利要求28-33中任一项所述的通信装置，其特征在于，所述多个载波中，每个载波上的PUCCH重复次数相同。
  35. 根据权利要求28-34中任一项所述的通信装置，其特征在于，所述至少一个载波中，所述PUCCH所承载在时间单元中对应的符号上，所述对应的符号为上行符号或灵活符号。
  36. 根据权利要求28-35中任一项所述的通信装置，其特征在于，
    所述收发模块，还用于向所述终端发送第二指示信息，所述第二指示信息用于指示所述至少一个载波为一个或者多个。
  37. 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，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1至9中任一项所述的方法，或者执行如权利要求10至18中任一项所述的方法。
  38. 一种计算机可读介质，其上存储有计算机程序或指令，其特征在于，所述计算机程序或指令被执行时使得计算机执行如权利要求1至9中任一项所述的方法或者如权利要求10至18中任一项所述的方法。
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