Wireless communication method, terminal device and network device

Abstract

Embodiments of the present application provide a wireless communication method and device, which can avoid repeated transmission of feedback response information, and can improve the efficiency of PUCCH. The method comprises: a terminal device transmitting first feedback information in a first time unit; wherein a bit corresponding to a first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to a first target resource set, the first resource unit transmits a first downlink channel, a feedback timing corresponding to the first downlink channel is a second time unit, the first target resource set comprises at least one resource unit, and the second time unit is different from the first time unit.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a wireless communication method, terminal device, and network device. Background Technology

[0002] In a Long Term Evolution (LTE) system, after a terminal receives a downlink channel (e.g., a Physical Downlink Shared Channel (PDSCH)), it can send feedback response information for that downlink channel.

[0003] In New Radio (NR) systems, how to transmit downlink channel feedback response information is a problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a wireless communication method and device that can avoid repeated transmission of feedback response information and improve the efficiency of the Physical Uplink Control Channel (PUCCH).

[0005] Firstly, a wireless communication method is provided, comprising:

[0006] The terminal device sends the first feedback information in the first time unit;

[0007] In this context, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to the first target resource set, the first resource unit transmits the first downlink channel, the feedback timing corresponding to the first downlink channel is the second time unit, the first target resource set includes at least one resource unit, and the second time unit is different from the first time unit.

[0008] In conjunction with the first aspect, in one possible implementation of the first aspect, the first target resource set is determined based on high-level parameters.

[0009] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, each resource unit within the first target resource set can be configured to transmit the downlink channel.

[0010] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, the first target resource set includes at least one time unit within at least one carrier.

[0011] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, the number of bits of the first feedback information is determined based on the number of resource units in the first target resource set.

[0012] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

[0013] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, the bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

[0014] In conjunction with the first aspect or any of its possible implementations, in another possible implementation of the first aspect, the first resource unit further belongs to a second target resource set, the second target resource set including at least one resource unit, and the method further includes:

[0015] The terminal device sends second feedback information in the second time unit;

[0016] In this second feedback information, the bit corresponding to the first resource unit is set as the feedback response information of the first downlink channel.

[0017] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

[0018] In conjunction with the first aspect or any of the above possible implementations, in another possible implementation of the first aspect, the method further includes:

[0019] The terminal device receives indication information sent by the network device, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

[0020] Secondly, a wireless communication method is provided, including:

[0021] The network device receives the first feedback information sent by the terminal device in the first time unit;

[0022] In this context, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to the first target resource set, the first resource unit transmits the first downlink channel, the feedback timing corresponding to the first downlink channel is the second time unit, the first target resource set includes at least one resource unit, and the second time unit is different from the first time unit.

[0023] In conjunction with the second aspect, in one possible implementation of the second aspect, the method further includes:

[0024] The network device configures higher-level parameters to the terminal device for determining the first target resource set.

[0025] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, each resource unit within the first target resource set can be configured to transmit the downlink channel.

[0026] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, the first target resource set includes at least one time unit within at least one carrier.

[0027] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, the number of bits of the first feedback information is determined based on the number of resource units in the first target resource set.

[0028] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

[0029] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, the bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

[0030] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, the first resource unit further belongs to a second target resource set, the second target resource set including at least one resource unit, and the method further includes:

[0031] The network device receives second feedback information in the second time unit;

[0032] In this second feedback information, the bit corresponding to the first resource unit is set as the feedback response information of the first downlink channel.

[0033] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

[0034] In conjunction with the second aspect or any of the above possible implementations, in another possible implementation of the second aspect, the method further includes:

[0035] The network device sends an indication message, which is used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

[0036] Thirdly, a terminal device is provided, configured to execute the method of the first aspect or any possible implementation thereof. Specifically, the terminal device includes functional modules configured to execute the method of the first aspect or any possible implementation thereof.

[0037] Fourthly, a network device is provided, configured to perform the method of the second aspect or any possible implementation thereof. Specifically, the network device includes functional modules configured to perform the method of the second aspect or any possible implementation thereof.

[0038] Fifthly, a terminal device is provided, including a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through internal connection paths to transmit control and / or data signals, causing the terminal device to execute the methods of the first aspect or any possible implementation thereof.

[0039] In a sixth aspect, a network device is provided, including a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other via internal interconnection paths to transmit control and / or data signals, causing the network device to perform the methods of the second aspect or any possible implementation thereof.

[0040] In a seventh aspect, a computer-readable medium is provided, configured to store a computer program including instructions for performing the methods described above or any possible implementation thereof.

[0041] Eighthly, a computer program product including instructions is provided, which, when run on a computer, causes the computer to perform the methods described above or any possible implementation thereof.

[0042] Therefore, in this embodiment of the application, when the feedback response information corresponding to the downlink channel of a resource unit can be carried in multiple time units, setting placeholder information for the resource unit in the feedback information sent in one of the time units can avoid repeated transmission of feedback response information, thereby improving the efficiency of the Physical Uplink Control Channel (PUCCH). Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of a wireless communication system according to an embodiment of this application.

[0045] Figure 2 This is a schematic flowchart of a wireless communication method according to an embodiment of this application.

[0046] Figure 3 This is a mapping diagram of resource units and time units for sending feedback information according to embodiments of this application.

[0047] Figure 4 This is a schematic block diagram of a terminal device according to an embodiment of this application.

[0048] Figure 5 This is a schematic block diagram of a network device according to an embodiment of this application.

[0049] Figure 6 This is a schematic block diagram of a system chip according to an embodiment of this application.

[0050] Figure 7 This is a schematic block diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0052] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), or future 5G systems (also known as New Radio, NR), etc.

[0053] Figure 1 This application illustrates a wireless communication system 100 used in an embodiment of this application. The wireless communication system 100 may include a network device 110. The network device 100 may be a device that communicates with terminal devices. The network device 100 can provide communication coverage for a specific geographical area and can communicate with terminal devices (e.g., UEs) located within that coverage area. Optionally, the network device 100 may be a base station (BTS) in a GSM or CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN). Alternatively, the network device may be a relay station, access point, vehicle-mounted equipment, wearable device, network-side equipment in a future 5G network, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.

[0054] The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of ​​the network device 110. The terminal device 120 can be mobile or fixed. Optionally, the terminal device 120 can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a future 5G network, or terminal device in a future evolved PLMN, etc.

[0055] Optionally, the terminal devices 120 can communicate directly with each other via Device to Device (D2D).

[0056] Alternatively, 5G systems or networks may also be referred to as New Radio (NR) systems or networks.

[0057] Figure 1 An exemplary embodiment shows a network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0058] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0059] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0060] Figure 2 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. The method 200 can optionally be applied to... Figure 1 The system shown is not limited to this. For example... Figure 2As shown, the method 200 includes at least some of the following components.

[0061] In step 210, the terminal device sends the first feedback information in the first time unit.

[0062] In this first feedback information, the bit corresponding to the first resource unit is set as placeholder information. The first resource unit belongs to the first target resource set. The first resource unit transmits the first downlink channel. The feedback timing corresponding to the first downlink channel is the second time unit. The first target resource set includes at least one resource unit. The second time unit is different from the first time unit.

[0063] In 220, the network device receives the first feedback information sent by the terminal device in the first time unit.

[0064] Optionally, the first or second time unit may be a time slot, a mini-time slot, or a symbol, etc.

[0065] Optionally, the placeholder information in this application embodiment can be NACK information.

[0066] Optionally, the feedback response information in this application embodiment can be ACK information or NACK information, which can be determined based on the result of the downlink channel.

[0067] Optionally, the resource units in the first target resource set may occupy the same amount of resources in the time domain.

[0068] Optionally, each resource unit in the first target resource set may occupy one or more time slots in the time domain, or one or more symbols within a time slot.

[0069] Optionally, the first target resource set includes at least one time unit within at least one carrier.

[0070] Optionally, the first target resource set can transmit multiple downlink channels, each of which can occupy at least one resource unit. The number of resource units occupied by the multiple downlink channels can be different.

[0071] If the first target resource set transmits multiple downlink channels, then the first feedback information can carry feedback information for multiple downlink channels.

[0072] Optionally, the NR system supports ACK / NACK multiplexing transmission, meaning that ACK / NACK information corresponding to multiple PDSCHs is transmitted through a single PUCCH. For ACK / NACK multiplexing transmission, two ACK / NACK information generation methods are further supported: semi-static determination of the ACK / NACK bit count (semi-static HARQ-ACK codebook) and dynamic determination of the ACK / NACK bit count (dynamic HARQ-ACK codebook). When configured for semi-static determination of the ACK / NACK bit count, the terminal determines the number of ACK / NACK bits based on the maximum and minimum values ​​in the supported pre-configured set. For example, in the case of single-carrier, single-codeword transmission, if the pre-configured set is {1,2,3,4,5,6,7,8}, then the number of ACK / NACK bits is 8 bits.

[0073] Optionally, the first target resource set is determined based on high-level parameters.

[0074] Specifically, network devices can configure the first target resource set to the terminal through higher-layer parameters. The terminal can then determine the first target resource set based on these higher-layer parameters.

[0075] Optionally, each resource element within the first target resource set can be configured to transmit the downlink channel.

[0076] It should be understood that the ability of each resource element to be configured to transmit downlink channels does not mean that the resource set must transmit downlink channels; it only indicates that the resource element supports the transmission of downlink channels.

[0077] Optionally, in the embodiments of this application, when a resource unit transmits a downlink channel, one or more coding blocks may be transmitted within a resource unit, or one or more transport blocks may be transmitted within a resource unit.

[0078] Optionally, the terminal device determines the number of bits of the first feedback information before sending the first feedback information in the first time unit.

[0079] Optionally, the number of bits in the first feedback information is related to the number of resource units in the first target resource set, that is, the number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

[0080] Optionally, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

[0081] Optionally, the number of bits corresponding to a resource unit in the first feedback information may be related to the number of coded block groups or transport blocks that each resource unit can carry.

[0082] For example, the number of bits corresponding to a resource unit in the first feedback information can be equal to the number of coded block groups or transport blocks that the resource unit can carry.

[0083] Optionally, when there is no downlink channel transmission on a resource unit, at least one bit corresponding to that resource unit may carry placeholder information.

[0084] Optionally, in this embodiment of the application, the bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

[0085] Optionally, in this embodiment of the application, the first resource unit also belongs to the second target resource set, the second target resource set includes at least one resource unit, and the terminal device sends the second feedback information in the second time unit;

[0086] In this second feedback information, the bit corresponding to the first resource unit is set as the feedback response information of the first downlink channel.

[0087] Optionally, the resource units in the second target resource set may occupy the same amount of resources in the time domain.

[0088] Optionally, each resource unit in the second target resource set may occupy one or more time slots in the time domain, or one or more symbols within a time slot.

[0089] Optionally, the second target resource set includes at least one time unit within at least one carrier.

[0090] Optionally, the number of bits in the second feedback information is related to the number of resource units in the second target resource set, that is, the number of bits in the second feedback information is determined based on the number of resource units in the second target resource set.

[0091] Optionally, each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

[0092] Optionally, the number of bits corresponding to a resource unit in the second feedback information may be related to the number of coded block groups or transport blocks that each resource unit can carry.

[0093] For example, the number of bits corresponding to a resource unit in the second feedback information can be equal to the number of coded block groups or transport blocks that the resource unit can carry.

[0094] Optionally, when there is no downlink channel transmission on a resource unit, at least one bit corresponding to that resource unit may carry placeholder information.

[0095] Optionally, the second target resource set can transmit multiple downlink channels, each of which can occupy at least one resource unit. The number of resource units occupied by these multiple downlink channels can be different.

[0096] Optionally, the number of resource units included in the first target resource set and the second target resource set may be equal or unequal.

[0097] Optionally, the size of the resource units included in the first target resource set may be the same as or different from the size of the resource units included in the second target resource set.

[0098] Optionally, in this embodiment, the terminal receives indication information sent by the network device, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

[0099] Optionally, in 5G (NR, new radio) systems, dynamic indication feedback timing (Hybrid Automatic Repeat reQuest (HARQ) timing) is supported for PDSCH. That is, the terminal determines a pre-configured timing set, which can contain 8 values, for example, {K10, K11, K12, K13, K14, K15, K16, K17}. Downlink Control Information (DCI) indicates that PDSCH should be transmitted in slot n, and this DCI contains a 3-bit target information field to indicate a value K1i in the timing set. Then, the terminal sends the corresponding Acknowledgment (ACK) / Non-Acknowledgment (NACK) information for that PDSCH within slot n+K1i.

[0100] To better understand this application, the following will be combined with Figure 3 Let's illustrate with examples.

[0101] like Figure 3 As shown, PDSCH1, PDSCH2, PDSCH3, PDSCH4, PDSCH5, PDSCH6, PDSCH7 and PDSCH8 are transmitted in time slots n+1, n+2, n+4, n+5, n+6, n+8, n+9 and n+11 respectively.

[0102] Specifically, time slot n+8 corresponds to time slots n to n+7, and feedback information is transmitted on time slot n+8. This feedback information can be used to carry feedback acknowledgment information for the downlink channels from time slots n to n+7. Similarly, time slot n+12 corresponds to time slots n+4 to n+11, and feedback information is transmitted on time slot n+12. This feedback information can be used to carry feedback acknowledgment information for the downlink channels from time slots n+4 to n+11.

[0103] As can be seen from the above, for time slots n+4 to n+7, the feedback response information of the downlink channel transmitted on them can be carried on either time slot n+8 or time slot n+12.

[0104] Network devices can indicate feedback timing; for example, ACK / NACK for PDSCH 1, 2, 3, 4, 5 is transmitted in time slot n+8, and ACK / NACK for PDSCH 6, 7, 8 is transmitted in time slot n+12.

[0105] Then the terminal device can determine that the feedback information sequence in time slot n+8 is {0, b1, b2, 0, b3, b4, b5, 0}, and the feedback information sequence in time slot n+12 is {0, 0, 0, 0, b6, b7, 0, b8}, where bi is the ACK / NACK information corresponding to PDSCHi, and "0" is placeholder information.

[0106] In this embodiment of the application, the first feedback information transmitted by the first time unit includes at least one feedback response information corresponding to at least one downlink channel. The at least one downlink channel is transmitted through a resource unit in the first target resource set, and the feedback timing corresponding to the at least one downlink channel is the first time unit.

[0107] Furthermore, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information, and the bits of the feedback response information of the at least one downlink channel in the feedback information are the bits corresponding to the resource unit transmitting the downlink channel.

[0108] Optionally, if a resource unit in the first target resource set does not transmit a downlink channel, the bit corresponding to that resource unit is set as placeholder information.

[0109] Optionally, if the feedback timing corresponding to the downlink channel of a resource unit transmission in the first target resource set is not the first time unit, then the bit corresponding to the resource unit is also set as placeholder information.

[0110] Therefore, in this embodiment of the application, when the feedback response information corresponding to the downlink channel of a resource unit can be carried in multiple time units, setting placeholder information for the resource unit in the feedback information sent in one of the time units can avoid repeated transmission of feedback response information and improve the efficiency of the Physical Uplink Control Channel (PUCCH).

[0111] Figure 4 This is a schematic block diagram of a terminal device 300 according to an embodiment of this application. Figure 4 As shown, the terminal device 300 includes a transmitting unit 310, configured as follows:

[0112] Send the first feedback information in the first time unit;

[0113] In this context, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to the first target resource set, the first resource unit transmits the first downlink channel, the feedback timing corresponding to the first downlink channel is the second time unit, the first target resource set includes at least one resource unit, and the second time unit is different from the first time unit.

[0114] Optionally, the first target resource set is determined based on high-level parameters.

[0115] Optionally, each resource unit within the first target resource set can be configured to transmit the downlink channel.

[0116] Optionally, the first target resource set includes at least one time unit within at least one carrier.

[0117] Optionally, the number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

[0118] Optionally, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

[0119] Optionally, the bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

[0120] Optionally, the first resource unit also belongs to a second target resource set, the second target resource set including at least one resource unit, and the sending unit 310 is further configured to:

[0121] Send the second feedback information in the second time unit;

[0122] In this second feedback information, the bit corresponding to the first resource unit is set as the feedback response information of the first downlink channel.

[0123] Optionally, each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

[0124] Optionally, such as Figure 4 As shown, the terminal device 300 also includes a receiving unit 320, configured as follows:

[0125] The system receives indication information sent by a network device, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

[0126] It should be understood that the terminal device 300 can correspond to the terminal device in method 200 and can implement the corresponding operations of the terminal device in method 200. For the sake of brevity, it will not be described in detail here.

[0127] Figure 5 This is a schematic block diagram of a network device 400 according to an embodiment of this application. Figure 5 As shown, the network device 400 includes a receiving unit 410, configured as follows:

[0128] Receive the first feedback information sent by the terminal device in the first time unit;

[0129] In this context, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to the first target resource set, the first resource unit transmits the first downlink channel, the feedback timing corresponding to the first downlink channel is the second time unit, the first target resource set includes at least one resource unit, and the second time unit is different from the first time unit.

[0130] Optionally, such as Figure 5 As shown, the network device 400 also includes a transmitting unit 420, configured as follows:

[0131] Configure the terminal device with high-level parameters for determining the first target resource set.

[0132] Optionally, each resource unit within the first target resource set can be configured to transmit the downlink channel.

[0133] Optionally, the first target resource set includes at least one time unit within at least one carrier.

[0134] Optionally, the number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

[0135] Optionally, each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

[0136] Optionally, the bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

[0137] Optionally, the first resource unit also belongs to a second target resource set, the second target resource set including at least one resource unit, and the receiving unit 410 is further configured to:

[0138] Receive the second feedback information in the second time unit;

[0139] In this second feedback information, the bit corresponding to the first resource unit is set as the feedback response information of the first downlink channel.

[0140] Optionally, each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

[0141] Optionally, such as Figure 5 As shown, the network device 400 also includes a transmitting unit 420, configured as follows:

[0142] Send indication information, which is used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

[0143] It should be understood that the network device 400 can correspond to the network device in method 200 and can implement the corresponding operations of the network device in method 200. For the sake of brevity, it will not be described in detail here.

[0144] Figure 6 This is a schematic structural diagram of a system chip 800 according to an embodiment of this application. Figure 6 The system chip 800 includes an input interface 801, an output interface 802, a processor 803, and a memory 804, which are connected by an internal communication connection line. The processor 803 is configured to execute the code in the memory 804.

[0145] Optionally, when the code is executed, the processor 803 implements the method executed by the network device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0146] Optionally, when the code is executed, the processor 803 implements the method executed by the terminal device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0147] Figure 7 This is a schematic block diagram of a communication device 900 according to an embodiment of this application. Figure 7 As shown, the communication device 900 includes a processor 910 and a memory 920. The memory 920 can store program code, and the processor 910 can execute the program code stored in the memory 920.

[0148] Optionally, such as Figure 7 As shown, the communication device 900 may include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with the outside world.

[0149] Optionally, the processor 910 can call the program code stored in the memory 920 to execute the corresponding operation of the network device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0150] Optionally, the processor 910 can call the program code stored in the memory 920 to execute the corresponding operations of the terminal device in the method embodiment. For the sake of brevity, this will not be described in detail here.

[0151] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0152] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0153] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0154] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0155] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0156] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0157] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0158] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0159] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication method, comprising: The terminal device sends the first feedback information in the first time unit; Wherein, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information, the first resource unit belongs to the first target resource set, the first resource unit transmits the first downlink channel, the feedback timing corresponding to the first downlink channel is the second time unit, the first target resource set includes at least one resource unit, and the second time unit is different from the first time unit; Wherein, the first resource unit also belongs to a second target resource set, the second target resource set includes at least one resource unit, and the method further includes: The terminal device receives indication information sent by the network device, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit; and The terminal device sends second feedback information in the second time unit; wherein the bit in the second feedback information corresponding to the first resource unit is set as feedback response information of the first downlink channel.

2. The method according to claim 1, wherein, The first target resource set is determined based on high-level parameters.

3. The method according to claim 1 or 2, wherein, Each resource unit within the first target resource set can be configured to transmit the downlink channel.

4. The method according to claim 1 or 2, wherein, The first target resource set contains at least one time unit within at least one carrier.

5. The method according to claim 1 or 2, wherein, The number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

6. The method according to claim 1 or 2, wherein, Each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

7. The method according to claim 1 or 2, wherein, The bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

8. The method according to claim 1, wherein, Each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

9. A wireless communication method, comprising: The network device receives the first feedback information sent by the terminal device in the first time unit; In this configuration, the bit corresponding to the first resource unit in the first feedback information is set as placeholder information. The first resource unit belongs to a first target resource set. The first resource unit transmits a first downlink channel. The feedback timing corresponding to the first downlink channel is a second time unit. The first target resource set includes at least one resource unit. The second time unit is different from the first time unit. Wherein, the first resource unit also belongs to a second target resource set, the second target resource set includes at least one resource unit, and the method further includes: The network device sends indication information, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit; and The network device receives second feedback information in the second time unit; wherein the bit in the second feedback information corresponding to the first resource unit is set as feedback response information of the first downlink channel.

10. The method according to claim 9, wherein, The method further includes: The network device configures higher-level parameters to the terminal device for determining the first target resource set.

11. The method according to claim 9 or 10, wherein, Each resource unit within the first target resource set can be configured to transmit the downlink channel.

12. The method according to claim 9 or 10, wherein, The first target resource set contains at least one time unit within at least one carrier.

13. The method according to claim 9 or 10, wherein, The number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

14. The method according to claim 9 or 10, wherein, Each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

15. The method according to claim 9 or 10, wherein, The bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

16. The method according to claim 9, wherein, Each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

17. A terminal device, comprising a transmitting unit, configured to: Send the first feedback information in the first time unit; in, In the first feedback information, the bit corresponding to the first resource unit is set as placeholder information. The first resource unit belongs to the first target resource set. The first resource unit transmits the first downlink channel. The feedback timing corresponding to the first downlink channel is the second time unit. The first target resource set includes at least one resource unit. The second time unit is different from the first time unit. The first resource unit also belongs to a second target resource set, which includes at least one resource unit, and the sending unit is further configured to: Send second feedback information on the second time unit; wherein the bit in the second feedback information corresponding to the first resource unit is set as feedback acknowledgment information of the first downlink channel; The terminal device further includes a receiving unit, configured as follows: The system receives indication information sent by a network device, the indication information being used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

18. The device according to claim 17, wherein, The first target resource set is determined based on high-level parameters.

19. The device according to claim 17 or 18, wherein, Each resource unit within the first target resource set can be configured to transmit the downlink channel.

20. The device according to claim 17 or 18, wherein, The first target resource set contains at least one time unit within at least one carrier.

21. The device according to claim 17 or 18, wherein, The number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

22. The device according to claim 17 or 18, wherein, Each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

23. The device according to claim 17 or 18, wherein, The bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

24. The device according to claim 17, wherein, Each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

25. A network device, comprising a receiving unit, configured as follows: Receive the first feedback information sent by the terminal device in the first time unit; in, In the first feedback information, the bit corresponding to the first resource unit is set as placeholder information. The first resource unit belongs to the first target resource set. The first resource unit transmits the first downlink channel. The feedback timing corresponding to the first downlink channel is the second time unit. The first target resource set includes at least one resource unit. The second time unit is different from the first time unit. The first resource unit also belongs to a second target resource set, which includes at least one resource unit, and the receiving unit is further configured as follows: Receive second feedback information in the second time unit; wherein, the bit in the second feedback information corresponding to the first resource unit is set as feedback response information of the first downlink channel; The network device further includes a transmitting unit, configured as follows: Send indication information, which is used to indicate that the feedback timing corresponding to the first downlink channel is the second time unit.

26. The device according to claim 25, wherein, It also includes a sending unit, configured as follows: Configure the terminal device with high-level parameters for determining the first target resource set.

27. The device according to claim 25 or 26, wherein, Each resource unit within the first target resource set can be configured to transmit the downlink channel.

28. The device according to claim 25 or 26, wherein, The first target resource set contains at least one time unit within at least one carrier.

29. The device according to claim 25 or 26, wherein, The number of bits in the first feedback information is determined based on the number of resource units in the first target resource set.

30. The device according to claim 25 or 26, wherein, Each resource unit in the first target resource set corresponds to at least one bit in the first feedback information.

31. The device according to claim 25 or 26, wherein, The bit corresponding to the second resource unit in the first feedback information carries the feedback response information of the second downlink channel, wherein the second resource unit belongs to the first target resource set, the second resource unit transmits the second downlink channel, and the feedback timing corresponding to the second downlink channel is the first time unit.

32. The device according to claim 25, wherein, Each resource unit in the second target resource set corresponds to at least one bit in the second feedback information.

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