Method for HARQ-ACK feedback for pdcch and device

Abstract

Embodiments of the present invention provide a method for HARQ-ACK feedback for a PDCCH without scheduling data, and a device. The method includes: receiving (201) configuration information of higher layer signaling, where the configuration information is used for determining a format of HARQ-ACK feedback information in a dynamic HARQ-ACK codebook for the PDCCH without scheduling data. (FIG. 2)

Description

Methods and equipment for HARQ-ACK feedback in PDCCH

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 201911286301.4, filed in China on December 13, 2019, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of communication technology, specifically to a method and apparatus for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback in the Physical Downlink Control Channel (PDCCH) for unscheduled data. Background Technology

[0004] In related technologies, it has been determined that during the active time, the secondary cell (SCell) dormancy indication can be performed through the Physical Downlink Control Channel (PDCCH) without scheduling data, and the terminal can send an acknowledgment (ACK) based on the dynamic codebook type to indicate that the PDCCH has been correctly received.

[0005] However, the format of the HARQ-ACK feedback information indicating SCell sleep behavior and not scheduling data PDCCH, as well as the timeline of the uplink control information (UCI) carrying the HARQ-ACK, are currently undetermined. This can lead to different interpretations of the HARQ-ACK feedback for the PDCCH between the terminal and the base station, resulting in the base station being unable to correctly receive the HARQ-ACK feedback corresponding to the PDCCH.

[0006] Summary of the Invention

[0007] One objective of this invention is to provide a method and apparatus for HARQ-ACK feedback of PDCCH without scheduling data, thereby solving the problem that the base station cannot correctly receive the HARQ-ACK feedback corresponding to the PDCCH.

[0008] In a first aspect, embodiments of the present invention provide a method for HARQ-ACK feedback of a PDCCH that does not schedule data, comprising:

[0009] The configuration information for receiving higher-layer signaling is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data.

[0010] Secondly, embodiments of the present invention provide a method for HARQ-ACK feedback of a PDCCH that does not schedule data, comprising:

[0011] Based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data, determine the time axis of the uplink control information (UCI) where the HARQ-ACK feedback information of the PDCCH is located, or determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is multiplexed with other information.

[0012] Thirdly, embodiments of the present invention provide a method for HARQ-ACK feedback of a PDCCH indicating non-scheduled data, comprising:

[0013] Configuration information for sending higher-layer signaling, wherein the configuration information is used to determine the format of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data.

[0014] Fourthly, embodiments of the present invention provide a terminal, including:

[0015] The first receiving module is used to receive configuration information of higher-layer signaling, wherein the configuration information is used to determine the format of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data.

[0016] Fifthly, embodiments of the present invention provide a terminal, comprising:

[0017] The determination module is used to determine the time axis of the uplink control information (UCI) where the HARQ-ACK feedback information of the PDCCH is located, based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data, or to determine the time axis of the UCI multiplexed with other information for the HARQ-ACK feedback information of the PDCCH.

[0018] Sixthly, embodiments of the present invention provide a network device, including:

[0019] The first sending module is used to send configuration information for higher-layer signaling. The configuration information is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH of the unscheduled data.

[0020] In a seventh aspect, embodiments of the present invention provide a communication device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of a method for HARQ-ACK feedback of a PDCCH for unscheduled data as described in the first or second aspect; or, the steps of a method for instructing HARQ-ACK feedback of a PDCCH for unscheduled data as described in the third aspect.

[0021] Eighthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of a method for HARQ-ACK feedback of a PDCCH for unscheduled data as described in the first or second aspect; or, the steps of a method for instructing HARQ-ACK feedback of a PDCCH for unscheduled data as described in the third aspect.

[0022] In this embodiment of the invention, it can be ensured that the terminal and the network device have a consistent understanding of the HARQ-ACK feedback of the PDCCH for unscheduled data, so that the network device can correctly receive the HARQ-ACK feedback of the PDCCH and improve the reliability of the communication system. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of the embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 is a schematic diagram of the architecture of the wireless communication system according to an embodiment of the present invention;

[0025] Figure 2 is a flowchart of one of the methods for HARQ-ACK feedback of PDCCH for non-scheduled data according to an embodiment of the present invention;

[0026] Figure 3 is a second flowchart of the method for HARQ-ACK feedback of PDCCH for non-scheduled data according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the time axis of UCI multiplexing according to an embodiment of the present invention;

[0028] Figure 5 is a flowchart of the HARQ-ACK feedback method for PDCCH indicating non-scheduled data according to an embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of one of the terminals according to an embodiment of the present invention;

[0030] Figure 7 is a second schematic diagram of the terminal according to an embodiment of the present invention;

[0031] Figure 8 is a schematic diagram of a network device according to an embodiment of the present invention;

[0032] Figure 9 is a schematic diagram of a communication device according to an embodiment of the present invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The term "comprising," and any variations thereof, used in the specification and claims of this application, is intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus. Furthermore, the use of "and / or" in the specification and claims indicates at least one of the connected objects, such as A and / or B, indicating the inclusion of A alone, B alone, or both A and B.

[0035] In embodiments of the present invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in embodiments of the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0036] The PDCCH for unscheduled data (or PDCCH for non-scheduled data) in this article may include one or more of the following:

[0037] (1) PDCCH (SCell dormancy indication and without scheduling PDSCH reception) used for SCell dormancy indication and without scheduling data;

[0038] (2) PDCCH used to indicate the release of semi-persistent scheduling (SPS) PDSCH;

[0039] (3) PDCCH used for other functions and not for scheduling data.

[0040] The DCI formats of the PDCCH for non-scheduled data described in this article include: DCI format 1-1 and / or DCI format 1-2, etc.

[0041] The PDCCH used for SCell sleep indication and non-scheduled data as described in this document can refer to the PDCCH used to indicate that when the Resource Allocation (RA) type is 0 or 1, all bits of the Frequency Domain Resource Assignment (FDRA) field are 0 or 1 respectively, and the codebook type of the HARQ-ACK feedback is type-2, the active downlink portion bandwidth (DL BWP) of an active Scell ​​is the sleep portion bandwidth (dormant-BWP) or the first non-dormant-BWP (first-non-dormant-BWP-ID-for-DCI-inside-active-time) within the active time.

[0042] The codebook type for the HARQ-ACK feedback of the PDCCH used for SCell sleep indication and non-scheduled data in this paper is type 2 (i.e., pdsch-HARQ-ACK-Codebook = dynamic), which belongs to dynamic codebook HARQ-ACK feedback. The codebook type for other PDCCHs that do not schedule data can be type 1 (i.e., pdsch-HARQ-ACK-Codebook = semi-static) or type 2.

[0043] The techniques described in this article are not limited to Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems.

[0044] The terms "system" and "network" are often used interchangeably. CDMA systems implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. TDMA systems implement radio technologies such as the Global System for Mobile Communication (GSM). OFDMA systems implement radio technologies such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE versions (such as LTE-A) are newer versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). CDMA2000 and UMB are described in documents from an organization called 3rd Generation Partnership Project 2 (3GPP2). The technologies described herein can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies.

[0045] The embodiments of the present invention are described below with reference to the accompanying drawings. The method and apparatus for HARQ-ACK feedback of a PDCCH without scheduled data provided by the embodiments of the present invention can be applied to wireless communication systems. Referring to Figure 1, a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the present invention is shown. As shown in Figure 1, the wireless communication system may include: a network device 11 and a terminal 12, which may be referred to as UE 12. The terminal 12 can communicate with the network device 11 (transmitting signaling or transmitting data). In practical applications, the connection between the above-mentioned devices can be a wireless connection. To facilitate a clear and intuitive representation of the connection relationship between the devices, solid lines are used in Figure 1.

[0046] The network device 11 provided in this embodiment of the invention can be a base station, which can be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (e.g., a next-generation node base station (gNB) or a transmission and reception point (TRP)).

[0047] The terminal 12 provided in this embodiment of the invention can be a mobile phone, tablet computer, laptop computer, ultra-mobile personal computer (UMPC), netbook, personal digital assistant (PDA), mobile internet device (MID), wearable device, or vehicle-mounted device, etc.

[0048] Referring to Figure 2, this embodiment of the invention provides a method for determining the HARQ-ACK feedback of the PDCCH for unscheduled data. The execution subject of this method can be a terminal, and the method includes: step 201.

[0049] Step 201: Receive configuration information from higher-layer signaling. The configuration information is used to determine the format of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data.

[0050] In this embodiment of the invention, the PDCCH for non-scheduled data can be a PDCCH with all 0s or all 1s in the Resource Allocation (RA) field. For example, when the resource allocation is resource allocation type 0 (resourceAllocation = resourceAllocationType0), all bits in the Frequency Domain Resource Assignment (FDRA) field of DCI format1_1 or DCI format1_2 are 0; or, when the resource allocation is resource allocation type 1 (resourceAllocation = resourceAllocationType1), all bits in the FDRA field of DCI format1_1 or DCI format1_2 are 1. The dynamic HARQ-ACK codebook can also be called the Type2 HARQ-ACK codebook.

[0051] In this embodiment of the invention, the dynamic HARQ-ACK codebook can also be referred to as the Type2 HARQ-ACK codebook.

[0052] In this embodiment of the invention, the format of the HARQ-ACK feedback information can refer to the number of bits in the HARQ-ACK.

[0053] In this embodiment of the invention, the higher-layer signaling may be Radio Resource Control (RRC) signaling, but is not limited to this.

[0054] In this embodiment of the invention, after determining the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data, the HARQ-ACK feedback information of the PDCCH for non-scheduled data can also be fed back according to the format of the HARQ-ACK feedback information. Optionally, the terminal in this embodiment of the invention can feed back the HARQ-ACK feedback information of the PDCCH for non-scheduled data in any of the following ways:

[0055] Method 1: According to the format of the HARQ-ACK feedback information, the HARQ-ACK feedback information of the PDCCH of the unscheduled data is fed back in the first sub-codebook. The first sub-codebook is used for HARQ-ACK feedback at the TB level of the transmission block.

[0056] Method 2: According to the format of the HARQ-ACK feedback information, the HARQ-ACK feedback information of the PDCCH of the unscheduled data is fed back in the second sub-codebook. The second sub-codebook is used for HARQ-ACK feedback at the code block group (CBG) level.

[0057] The first subcodebook above transmits the following HARQ-ACK feedback:

[0058] (1) In the serving cell configured with PDSCH-CodeBlockGroupTransmission, SPS PDSCH release, SPS PDSCH reception, and TB-based PDSCH receptions scheduled by DCI format1-0 are transmitted.

[0059] (2) In cells where PDSCH-CodeBlockGroupTransmission is not configured, PDSCH data reception is transmitted via DCI format 1-1 and DCI format 1-0.

[0060] The second subcodebook mentioned above transmits the following HARQ-ACK feedback:

[0061] (1) In the serving cell configured with PDSCH-CodeBlockGroupTransmission, CBG-based PDSCH receptions are transmitted via DCI format1-1.

[0062] In addition, the counter downlink allocation index (C-DAI) value and the total DAI (T-DAI) value are applied to each HARQ-ACK subcodebook. The UE generates a dynamic HARQ-ACK codebook by appending the second HARQ-ACK subcodebook to the first HARQ-ACK subcodebook.

[0063] In this embodiment of the invention, the terminal may ignore the T-DAI indication in DCI format 1-1 or DCI format 1-2. DCI format 1-0 feedback is in units of transport blocks (TB), and only has C-DAI, not T-DAI. However, DCI format 1-1 and DCI format 1-2 feedback includes both C-DAI and T-DAI.

[0064] In some implementations, the method may further include, prior to providing HARQ-ACK feedback information for the PDCCH of unscheduled data:

[0065] The higher-layer signaling or DCI is received, and the higher-layer signaling or DCI instructs the terminal to provide HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first sub-codebook or the second sub-codebook. That is, the UE is instructed by the network to provide HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first sub-codebook or the second sub-codebook via higher-layer signaling or DCI.

[0066] It is understandable that the aforementioned high-level signaling can be RRC signaling, but it is not limited to this.

[0067] In some implementations, the DCI includes a first field, the bits in which indicate that the terminal is feeding back HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first subcodebook or the second subcodebook.

[0068] The first field includes one or more of the following:

[0069] (1) Modulation and Coding Scheme (MCS);

[0070] (2) Redundancy Version (RV);

[0071] (3) HARQ process number;

[0072] (4) New Data Indication (NDI);

[0073] (5) Total DAI, t-DAI.

[0074] For example, the use of bits in the MCS, RV, HARQ process number, NDI and / or T-DAI fields in the DCI can indicate whether to use the first or second subcodebook, such as using "1" to indicate the use of the first subcodebook and "0" to indicate the use of the second subcodebook, but this is not the only option.

[0075] In some implementations, the configuration information in step 201 may indicate at least one of the following:

[0076] (1) The number of TBs in the Physical Downlink Shared Channel (PDSCH), for example: the maximum number of TBs in the PDSCH;

[0077] (2) The number of CBGs in the TB of each PDSCH, for example: the maximum number of CGBs in the TB of each PDSCH;

[0078] (3) The number of Transmission Reception Points (TRPs) for transmitting PDSCH, for example: the maximum number of TRPs for transmitting PDSCH;

[0079] (4) The dynamic subcodebook corresponding to the HARQ-ACK feedback information of the PDCCH for non-scheduled data;

[0080] (5) Whether to enable the HARQ-ACK spatial bundle indicator.

[0081] In some implementations, the format of the HARQ-ACK feedback information may include: the number of bits in the HARQ-ACK feedback information; wherein the number of bits in the HARQ-ACK feedback information is determined according to the following:

[0082] The configuration information indicates the maximum number of CBGs in the PDSCH TB and the maximum number of TBs transmitted by the PDSCH;

[0083] or,

[0084] The configuration information indicates the maximum number of TRPs for PDSCH transmission and the maximum number of TBs for PDSCH transmission;

[0085] or,

[0086] The configuration information indicates the maximum number of CBGs for the PDSCH TB, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH.

[0087] In some implementations, the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for the unscheduled data is equal to:

[0088] The product of the maximum number of CBGs in the PDSCH TB and the maximum number of TBs transmitted by the PDSCH;

[0089] or,

[0090] The product of the maximum number of TRPs transmitted by PDSCH and the maximum number of TBs transmitted by PDSCH;

[0091] or,

[0092] The product of the maximum number of CBGs in the PDSCH TB, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH.

[0093] The following examples 1 through 5 illustrate how to determine the format of the HARQ-ACK feedback information for the PDCCH of unscheduled data based on the configuration information of the higher-level signaling.

[0094] In this context, Examples 1 and 2 correspond to the feedback of HARQ-ACK information for PDCCH with unscheduled data based on the first subcodebook, while Examples 3, 4, and 5 correspond to the feedback of HARQ-ACK information for PDCCH with unscheduled data based on the second subcodebook.

[0095] Example 1: Configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2, and the format of the HARQ-ACK feedback information of the PDCCH for unscheduled data includes 2 HARQ-ACK bits;

[0096] Example 2: Configuration information indication: The maximum number of downlink TBs of the PDSCH is 2 and HARQ-ACK space binding indication is enabled. The format of the HARQ-ACK feedback information of the PDCCH for non-scheduled data includes: 1 HARQ-ACK bit.

[0097] Optionally, the process of generating the 1 HARQ-ACK bit can be as follows: the 1 HARQ-ACK bit is obtained by performing a bitwise AND operation between two bits corresponding to the two TBs. It is understood that if only one TB is being transmitted at present, the feedback bit corresponding to the other TB is set to ACK by default.

[0098] Example 3: Based on the maximum number of CBGs of the PDSCH TB indicated by the configuration information and the maximum number of TBs transmitted by the PDSCH, determine the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for the unscheduled data;

[0099] For example, the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH without scheduled data is equal to the product of the maximum number of CBGs of the TB of the PDSCH and the maximum number of TBs transmitted by the PDSCH.

[0100] In this example, if the network is configured for CBG-based HARQ-ACK feedback and retransmission for the UE, the number of bits for HARQ-ACK is calculated according to N = maximum number of CBGs and C = maximum number of TBs, and the UE generates and sends N*C bits of HARQ-ACK.

[0101] Example 4: Based on the maximum number of TRPs for PDSCH transmission indicated by the configuration information and the maximum number of TBs for PDSCH transmission, determine the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for the unscheduled data;

[0102] For example, the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH without scheduled data is equal to the product of the maximum number of TRPs of the transmitted PDSCH and the maximum number of TBs of the transmitted PDSCH.

[0103] In this example, if the network configures the UE with multiple-PDCCH based on multiple TRPs and joint HARQ-ACK feedback (e.g., joint HARQ feedback of PDCCHs in two TRPs), when the UE simultaneously feeds back HARQ-ACKs from the PDCCHs on multiple TRPs, the number of bits for HARQ-ACK is calculated according to K = maximum number of TRPs and M = maximum number of TBs of PDSCH transmission, and the UE generates and sends K*M bits of HARQ-ACK.

[0104] Example 5: Based on the maximum number of CBGs of the PDSCH TB indicated by the configuration information, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH, determine the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for the unscheduled data.

[0105] For example, the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH without scheduled data is equal to the product of the maximum number of CBGs of the TB of the PDSCH, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH.

[0106] In this example, if the network configures the UE with CBG-based HARQ-ACK feedback and retransmission, as well as multiple-PDCCH based on multiple TRPs and joint HARQ-ACK feedback (e.g., joint HARQ feedback of PDCCH in two TRPs), when the UE simultaneously feeds back HARQ-ACK from the PDCCH on multiple TRPs, the number of bits for HARQ-ACK is calculated according to L = maximum number of CBGs, H = maximum number of TRPs, and P = maximum number of TBs transmitted by PDSCH. The UE generates and sends L*H*P bits of HARQ-ACK.

[0107] In some implementations, as described in Examples 1 to 5 above, when the PDCCH of the unscheduled data is detected, the HARQ-ACK feedback information is fed back according to the number of bits of the HARQ-ACK feedback information of the PDCCH of the unscheduled data, and the HARQ-ACK feedback information is ACK.

[0108] In some implementations, as described in Examples 1, 3 to 5 above, all bits in the HARQ-ACK feedback information are ACK; or, the first bit in the HARQ-ACK feedback information is ACK; or, at least one bit in the HARQ-ACK feedback information is ACK.

[0109] In this embodiment of the invention, the terminal can determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for unscheduled data based on the configuration information of the higher-layer signaling. This ensures that the terminal and the network device have a consistent understanding of the HARQ-ACK feedback of the PDCCH for unscheduled data, and that the network device can correctly receive the HARQ-ACK feedback of the PDCCH, thereby improving the reliability of the communication system.

[0110] Referring to Figure 3, this embodiment of the invention also provides a method for determining the HARQ-ACK feedback of the PDCCH for non-scheduled data. The execution subject of this method can be a terminal, including: step 301.

[0111] Step 301: Based on the reception time of the PDCCH (PDCCH without scheduling PDSCH for Scell ​​dormancy indication), determine the timeline of the uplink control information (UCI) where the HARQ-ACK feedback information of the PDCCH is located, or determine the timeline of the UCI where the HARQ-ACK feedback information of the PDCCH is multiplexed with other information.

[0112] The aforementioned UCIs include the following types: HARQ-ACK, Channel State Information (CSI), and Scheduling Request (SR).

[0113] The aforementioned UCIs can be transmitted on the Physical Uplink Control Channel (PUCCH) resources, while CSIs can be transmitted on the Physical Uplink Shared Channel (PUSCH) via DCI triggering. If the PUCCH and / or PUSCH resources used to transmit different UCIs overlap in time, the UE needs to multiplex the UCIs transmitted on multiple channels onto the same PUCCH or PUSCH resource.

[0114] If the PUCCH for UCI transmission and the PUSCH for UE data transmission overlap in the time domain, the UE will multiplex the UCI onto the PUSCH for transmission. This PUSCH can be a scheduled PUSCH or a configured grant PUSCH.

[0115] In this embodiment of the invention, other information may refer to UCI other than HARQ-ACK of PDCCH used for secondary cell sleep indication and not for scheduling data.

[0116] Optionally, the other information mentioned above may include any one or more of the following: (1) CSI; (2) SR; (3) HARQ-ACK feedback other than the PDCCH used for secondary cell sleep indication and not for scheduling data.

[0117] The following examples, from Examples 1 to 3, illustrate how to determine the UCI timeline where the HARQ-ACK feedback information of the PDCCH is located, or how the HARQ-ACK feedback information of the PDCCH can reuse the UCI timeline with other information.

[0118] Example 1: Based on the reception time of the last symbol of the PDCCH used for secondary cell sleep indication and non-scheduled data, determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located;

[0119] The first time interval includes N symbols, where the value of N is related to the value of the subcarrier spacing (SCS) of the PDCCH, and N is greater than 1.

[0120] For example, for UE processing capability 1: when the SCS of the PDCCH is 15kHz, N = 10; or, when the SCS of the PDCCH is 30kHz, N = 12; or, when the SCS of the PDCCH is 60kHz, N = 22; or, when the SCS of the PDCCH is 120kHz, N = 25.

[0121] For example, for a UE with capability 2 in FR1 (450MHz-6000MHz, also known as Sub-6GHz): when the SCS of the PDCCH is 15kHz, N = 5; or when the SCS of the PDCCH is 30kHz, N = 5.5; or when the SCS of the PDCCH is 60kHz, N = 11.

[0122] Example 2: Based on the time of receiving the last symbol of the PDCCH used for secondary cell sleep indication and non-scheduled data and the second time interval, determine the time axis of the multiplexing of the HARQ-ACK feedback information of the PDCCH with other information using the UCI.

[0123] The second time interval is determined based on one or more of the following: the number of sampling points of the Fast Fourier Transform (FFT) or Inverse Fast Fourier Transform (IFFT), the number of sampling points of the Cyclic Prefix (CP), the sampling period, and the SCS of the PDCCH.

[0124] Furthermore, the second time interval can be determined by the following formula:

[0125] T = (N+1)·(Number of FFT or IFFT sampling points + Number of CP sampling points)·κ·2 -μ ·T C

[0126] Where T represents the second time interval;

[0127] μ corresponds to the smallest SCS configuration in the SCS configuration of the PDCCH;

[0128] κ is a constant (e.g., κ = T) s / T c =64), T c As the basic time unit, T c =T s / κ,T s The sampling period;

[0129] The value of N is related to the value of SCS of PDCCH, and N is greater than 1.

[0130] It is understandable that if a terminal can receive one or more PDCCHs for secondary cell sleep indication without scheduling data, then the terminal determines the corresponding second time interval based on the one or more PDCCHs received.

[0131] For example, if a terminal receives multiple PDCCHs for secondary cell sleep indication without scheduling data, and transmits HARQ-ACK feedback information for these multiple PDCCHs in the same UCI, these multiple PDCCHs may correspond to multiple second time intervals. In this case, the terminal can select the largest second time interval corresponding to these multiple PDCCHs to determine the time axis of the UCI.

[0132] For example, if a terminal receives a PDCCH for secondary cell sleep indication without scheduling data, the terminal can select the second time interval corresponding to the PDCCH to determine the time axis of UCI.

[0133] The parameters in the above formula will be illustrated with examples below.

[0134] For example, the number of sampling points for FFT or IFFT is 2048, while the number of sampling points for CP is 144.

[0135] For example, for UE processing capability 1: when the SCS of the PDCCH is 15kHz, N = 10; or, when the SCS of the PDCCH is 30kHz, N = 12; or, when the SCS of the PDCCH is 60kHz, N = 22; or, when the SCS of the PDCCH is 120kHz, N = 25.

[0136] For example, for a UE with capability 2 in FR1 (450MHz-6000MHz, also known as Sub-6GHz): when the SCS of the PDCCH is 15kHz, N = 5; or when the SCS of the PDCCH is 30kHz, N = 5.5; or when the SCS of the PDCCH is 60kHz, N = 11.

[0137] See Figure 4, which illustrates the time axis for UCI multiplexing determined according to the above formula.

[0138] If a PUCCH or PUSCH transmission corresponds to a DCI format detected by the UE, the UE expects the first symbol S0 of the earliest PUCCH or PUSCH in the group of overlapping PUCCH and PUSCH in the time slot to satisfy the following time axis condition:

[0139] (1) After receiving a PDCCH for secondary cell sleep indication without scheduling data, S0 needs to satisfy the T time interval.

[0140] T=(N+1)·(2048+144)·κ·2 -μ ·T C

[0141] The UE sends HARQ-ACK information on symbol S0 or later that satisfies the aforementioned time interval T in response to the detection of the PDCCH. Here, N takes the value described above, and μ corresponds to the smallest SCS configuration in the SCS configuration of the PDCCH.

[0142] (2) After receiving multiple "PDCCHs for secondary cell sleep indication without scheduling data", S0 needs to meet the time interval.

[0143] The time interval is The maximum value in, It can be calculated using the following formula:

[0144]

[0145] Where i corresponds to the number of the multiple PDCCHs.

[0146] UE meets the above time interval HARQ-ACK information is sent on S0 or the symbol thereafter in response to the detection of the plurality of PDCCHs.

[0147] Wherein, the value of N is as described above, and μ corresponds to the smallest SCS configuration among the multiple PDCCH SCS configurations.

[0148] Example 3: Based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data and the third time interval, determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located;

[0149] The third time interval is the time interval between receiving the last symbol of the PDCCH and the first symbol of the uplink physical channel that feeds back the HARQ-ACK feedback information of the PDCCH.

[0150] In Examples 1 to 3 above, the UCI carrying the HARQ-ACK feedback information of PDCCH is carried on one or more of the following physical uplink channels: (1) PUCCH; (2) PUSCH.

[0151] In this embodiment of the invention, the terminal determines the timeline of the UCI where the HARQ-ACK feedback information of the PDCCH is located based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data, or determines the timeline of the UCI multiplexing of the HARQ-ACK feedback information of the PDCCH with other information. This can ensure that the terminal and the network device have a consistent understanding of the HARQ-ACK feedback of the PDCCH that does not schedule data, so that the network device can correctly receive the HARQ-ACK feedback of the PDCCH and improve the reliability of the communication system.

[0152] Referring to Figure 5, this embodiment of the invention also provides a method for HARQ-ACK feedback of a PDCCH indicating non-scheduled data. The subject executing this method can be a network device, and the method includes: 501.

[0153] Step 501: Send configuration information for higher-layer signaling, wherein the configuration information is used to determine the format of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH of the unscheduled data.

[0154] In this embodiment of the invention, the higher-layer signaling may be RRC signaling, but it is not limited to this.

[0155] In some implementations, the method may optionally further include:

[0156] The higher-layer signaling or DCI is sent, which instructs the terminal to provide HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first or second subcodebook.

[0157] In this embodiment of the invention, it can be ensured that the terminal and the network device have a consistent understanding of the HARQ-ACK feedback of the PDCCH for unscheduled data, so that the network device can correctly receive the HARQ-ACK feedback of the PDCCH and improve the reliability of the communication system.

[0158] Referring to Figure 6, this embodiment of the invention also provides a terminal, the terminal 600 including:

[0159] The first receiving module 601 is used to receive configuration information of higher-layer signaling. The configuration information is used to determine the format of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for non-scheduled data.

[0160] In some embodiments, the terminal shown in FIG6 further includes: a first feedback module 602, which is used for:

[0161] According to the format of the HARQ-ACK feedback information, the HARQ-ACK feedback information of the PDCCH of the unscheduled data is fed back in the first sub-codebook. The first sub-codebook is used for HARQ-ACK feedback at the TB level of transmission blocks.

[0162] Alternatively, according to the format of the HARQ-ACK feedback information, the HARQ-ACK feedback information of the PDCCH of the unscheduled data is fed back in the second sub-codebook, which is used for HARQ-ACK feedback at the code block group (CBG) level.

[0163] In some implementations, the terminal shown in FIG6 further includes:

[0164] The second receiving module is used to receive higher-layer signaling or DCI, wherein the higher-layer signaling or DCI instructs the terminal to provide HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first sub-codebook or the second sub-codebook.

[0165] In some implementations, the DCI includes a first field, the bits in which indicate that the terminal is feeding back HARQ-ACK feedback information for the PDCCH of the unscheduled data in the first subcodebook or the second subcodebook.

[0166] The first field includes one or more of the following:

[0167] (1) MCS;

[0168] (2)RV;

[0169] (3) Number of HARQ processes;

[0170] (4) NDI;

[0171] (5)t-DAI.

[0172] In some implementations, the configuration information may include at least one of the following:

[0173] (1) Number of TBs in PDSCH, for example: the maximum number of TBs in PDSCH;

[0174] (2) The number of CBGs in the TB of each PDSCH, for example: the maximum number of CGBs in the TB of each PDSCH;

[0175] (3) The number of TRPs for transmitting PDSCH, for example: the maximum number of TRPs for transmitting PDSCH;

[0176] (4) The dynamic subcodebook corresponding to the HARQ-ACK feedback information of the PDCCH for non-scheduled data;

[0177] (5) Whether to enable HARQ-ACK space binding instruction.

[0178] In some implementations, the configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2, and the format of the HARQ-ACK feedback information of the PDCCH for non-scheduled data includes 2 HARQ-ACK bits; or, the configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2 and HARQ-ACK space binding indication is enabled, and the format of the HARQ-ACK feedback information of the PDCCH for non-scheduled data includes 1 HARQ-ACK bit.

[0179] In some implementations, the format of the HARQ-ACK feedback information includes: the number of bits in the HARQ-ACK feedback information; wherein, the number of bits in the HARQ-ACK feedback information is determined according to the following:

[0180] The configuration information indicates the maximum number of CBGs in the PDSCH TB and the maximum number of TBs transmitted by the PDSCH;

[0181] or,

[0182] The configuration information indicates the maximum number of TRPs for PDSCH transmission and the maximum number of TBs for PDSCH transmission;

[0183] or,

[0184] The configuration information indicates the maximum number of CBGs for the PDSCH TB, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH.

[0185] In some implementations, the number of bits of HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH for the unscheduled data is equal to:

[0186] The product of the maximum number of CBGs in the PDSCH TB and the maximum number of TBs transmitted by the PDSCH;

[0187] or,

[0188] The product of the maximum number of TRPs transmitted by PDSCH and the maximum number of TBs transmitted by PDSCH;

[0189] or,

[0190] The product of the maximum number of CBGs in the PDSCH TB, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitted by the PDSCH.

[0191] In some implementations, the terminal further includes a second feedback module, configured to, upon detecting the PDCCH of the unscheduled data, feed back HARQ-ACK feedback information of the PDCCH of the unscheduled data based on the number of bits of the HARQ-ACK feedback information, wherein the HARQ-ACK feedback information is an acknowledgment (ACK).

[0192] In some implementations, all bits in the HARQ-ACK feedback information are ACK; or, the first bit in the HARQ-ACK feedback information is ACK; or, at least one bit in the HARQ-ACK feedback information is ACK.

[0193] The terminal provided in this embodiment of the invention can execute the method embodiment shown in Figure 2 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0194] Referring to Figure 7, this embodiment of the invention also provides a terminal, the terminal 700 including:

[0195] The determination module 701 is used to determine the time axis of the uplink control information (UCI) where the HARQ-ACK feedback information of the PDCCH is located, based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data, or to determine the time axis of the UCI multiplexed with other information for the HARQ-ACK feedback information of the PDCCH.

[0196] In some implementations, the determining module 701 is further configured to: determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located based on the reception time of the last symbol of the PDCCH used for secondary cell sleep indication and non-scheduled data and a first time interval; wherein the first time interval includes N symbols, the value of N is related to the value of the SCS of the PDCCH, and N is greater than 1.

[0197] In some implementations, the determining module 701 is further configured to: determine the time axis of the multiplexing of the HARQ-ACK feedback information of the PDCCH with other information UCI based on the time of receiving the last symbol of the PDCCH for secondary cell sleep indication and non-scheduling data and the second time interval;

[0198] The second time interval is determined based on one or more of the following: the number of sampling points of Fast Fourier Transform (FFT), the number of sampling points of the Cyclic Prefix (CP), the sampling period, and the subcarrier spacing (SCS) of the PDCCH.

[0199] In some implementations, the second time interval is determined by the following formula:

[0200] T = (N+1)·(Number of FFT or IFFT sampling points + Number of CP sampling points)·κ·2 -μ ·T C

[0201] Where T represents the second time interval; μ corresponds to the smallest SCS configuration in the SCS configuration of the PDCCH; κ is a constant (e.g., κ = T). s / T c =64), T c As the basic time unit, T c =T s / κ,T s The sampling period is defined as N; the value of N is related to the value of SCS of PDCCH, and N is greater than 1.

[0202] In some implementations, when the SCS of the PDCCH is 15 kHz, N = 10; or, when the SCS of the PDCCH is 30 kHz, N = 12; or, when the SCS of the PDCCH is 60 kHz, N = 22; or, when the SCS of the PDCCH is 120 kHz, N = 25; or, when the SCS of the PDCCH is 15 kHz, N = 5; or, when the SCS of the PDCCH is 30 kHz, N = 5.5; or, when the SCS of the PDCCH is 60 kHz, N = 11.

[0203] In some implementations, the determining module 701 is further configured to: determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located, based on the reception time of the PDCCH used for secondary cell sleep indication and non-scheduled data and a third time interval;

[0204] The third time interval is the time interval between receiving the last symbol of the PDCCH and the first symbol of the uplink physical channel that feeds back the HARQ-ACK feedback information of the PDCCH.

[0205] The terminal provided in this embodiment of the invention can execute the method embodiment shown in Figure 3 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0206] Referring to Figure 8, this embodiment of the invention also provides a network device, the network device 800 including:

[0207] The first sending module 801 is used to send configuration information for higher-layer signaling. The configuration information is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH of the unscheduled data.

[0208] In some implementations, the network device 800 shown in FIG8 further includes: a second transmitting module for transmitting higher-layer signaling or DCI, wherein the higher-layer signaling or DCI instructs the terminal to provide feedback of HARQ-ACK information of the PDCCH of the unscheduled data in a first subcodebook or a second subcodebook.

[0209] The network device provided in this embodiment of the invention can execute the method embodiment shown in Figure 5 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0210] Please refer to Figure 9, which is a structural diagram of the communication device used in an embodiment of the present invention. As shown in Figure 9, the communication device 900 includes: a processor 901, a transceiver 902, a memory 903, and a bus interface. The processor 901 is responsible for managing the bus architecture and general processing. The memory 903 can store the data used by the processor 901 during operation.

[0211] In one embodiment of the present invention, the communication device 900 further includes: a program stored on a memory 903 and executable on a processor 901, wherein the program, when executed by the processor 901, implements the steps in the method shown in FIG2, FIG3 or FIG5 above.

[0212] In Figure 9, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 901 and memory represented by memory 903. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 902 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium.

[0213] The communication device provided in this embodiment of the invention can execute the method embodiment shown in Figure 2, Figure 3 or Figure 5 above. Its implementation principle and technical effect are similar, and will not be described again here.

[0214] The steps of the methods or algorithms described in conjunction with the present invention can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, optical discs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the ASIC can reside in a core network interface device. Of course, the processor and storage medium can also exist as discrete components in the core network interface device.

[0215] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this invention can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

[0216] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of the present invention should be included within the scope of protection of the present invention.

[0217] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0218] Embodiments of the present invention are described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0219] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0220] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0221] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, if these modifications and variations to the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A method for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of a physical downlink control channel (PDCCH) without scheduling data, comprising: Receive the configuration information of the high-layer signaling, where the configuration information is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH that does not schedule data.

2. The method according to claim 1, further comprising: According to the format of the HARQ-ACK feedback information, feedback the HARQ-ACK feedback information of the PDCCH that does not schedule data in the first sub-codebook, where the first sub-codebook is used to transmit HARQ-ACK feedback at the transport block (TB) level; Alternatively, according to the format of the HARQ-ACK feedback information, feedback the HARQ-ACK feedback information of the PDCCH that does not schedule data in the second sub-codebook, where the second sub-codebook is used to transmit HARQ-ACK feedback at the codeblock group (CBG) level.

3. The method according to claim 2, further comprising: Receive the high-layer signaling or downlink control information (DCI), where the high-layer signaling or DCI instructs the terminal to feedback the HARQ-ACK feedback information of the PDCCH that does not schedule data in the first sub-codebook or the second sub-codebook.

4. The method according to claim 3, wherein, The DCI includes a first field, and the bits in the first field indicate that the terminal feeds back the HARQ-ACK feedback information of the PDCCH that does not schedule data in the first sub-codebook or the second sub-codebook; Wherein, the first field includes one or more of the following: Modulation and Coding Scheme (MCS); Redundancy Version (RV); Number of HARQ processes; New Data Indicator (NDI); Total Downlink Allocation Index (t-DAI).

5. The method according to claim 1, wherein, The configuration information indicates at least one of the following: Number of TBs of the Physical Downlink Shared Channel (PDSCH); Number of CBGs of each TB of the PDSCH; Number of Transmission and Reception Points (TRPs) transmitting the PDSCH; Dynamic sub-codebook corresponding to the HARQ-ACK feedback information of the PDCCH that does not schedule data; Whether to enable the HARQ-ACK spatial bundling indication.

6. The method according to claim 5, wherein, The configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2, and the format of the HARQ-ACK feedback information of the PDCCH that does not schedule data includes: 2 HARQ-ACK bits; Or, The configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2 and the HARQ-ACK spatial bundling indication is enabled, and the format of the HARQ-ACK feedback information of the PDCCH that does not schedule data includes: 1 HARQ-ACK bit.

7. The method according to claim 5, wherein, The format of the HARQ-ACK feedback information includes: the number of bits of the HARQ-ACK feedback information; wherein, the number of bits of the HARQ-ACK feedback information is determined according to the following: The configuration information indicates the maximum number of CBGs of the TBs of the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The configuration information indicates the maximum number of TRPs transmitting the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The configuration information indicates the maximum number of CBGs of the TBs of the PDSCH, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitting the PDSCH.

8. The method according to claim 7, wherein, The number of bits of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH that does not schedule data is equal to: The product of the maximum number of CBGs of the TB of the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The product of the maximum number of TRPs transmitting the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The product of the maximum number of CBGs of the TB of the PDSCH, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitting the PDSCH.

9. The method according to claim 1 further comprises: When detecting the PDCCH that does not schedule data, according to the number of bits of the HARQ-ACK feedback information, feedback the HARQ-ACK feedback information of the PDCCH that does not schedule data, and the HARQ-ACK feedback information is an acknowledgement ACK.

10. The method according to claim 9, wherein All bits in the HARQ-ACK feedback information are ACKs; Or, The first bit in the HARQ-ACK feedback information is ACK; Or, At least one bit in the HARQ-ACK feedback information is ACK.

11. A method for HARQ-ACK feedback of PDCCH without scheduling data, comprising: According to the reception time of the PDCCH for secondary cell dormancy indication and not scheduling data, determine the time axis of the uplink control information UCI where the HARQ-ACK feedback information of the PDCCH is located, or determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is multiplexed with other information.

12. The method according to claim 11, wherein The determining the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located according to the reception time of the PDCCH for secondary cell dormancy indication and not scheduling data includes: According to the reception time of the last symbol of the PDCCH for secondary cell dormancy indication and not scheduling data and the first time interval, determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is located; Wherein, the first time interval includes N symbols, and the value of N is related to the value of the subcarrier spacing SCS of the PDCCH, and N is greater than 1.

13. The method according to claim 11, wherein The determining the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is multiplexed with other information according to the reception time of the PDCCH for secondary cell dormancy indication and not scheduling data includes: According to the time when the last symbol of the PDCCH for secondary cell dormancy indication and not scheduling data is received and the second time interval, determine the time axis of the UCI where the HARQ-ACK feedback information of the PDCCH is multiplexed with other information; Wherein, the second time interval is determined based on one or more of the number of sampling points of the fast Fourier transform FFT or the inverse fast Fourier transform IFFT, the number of sampling points of the cyclic prefix CP, the sampling period, and the subcarrier spacing SCS of the PDCCH.

14. The method according to claim 13, wherein The second time interval is determined by the following formula: T = (N + 1)·(number of FFT or IFFT sampling points + number of sampling points of CP)·κ·2 -μ ·T C Where T represents the second time interval; μ corresponds to the smallest SCS configuration in the SCS configuration of the PDCCH; k is a constant, and T c is the basic time unit; The value of N is related to the value of the SCS of the PDCCH, and N is greater than 1.

15. The method according to claim 12 or 14, wherein When the SCS of the PDCCH is 15 kHz, N = 10; Or, When the SCS of the PDCCH is 30 kHz, N = 12; Or, When the SCS of the PDCCH is 60 kHz, N = 22; Or, When the SCS of the PDCCH is 120 kHz, N = 25; Or, When the SCS of the PDCCH is 15 kHz, N = 5; Or, When the SCS of the PDCCH is 30 kHz, N = 5.5; Or, When the SCS of the PDCCH is 60 kHz, N = 11.

16. According to the method of claim 11, wherein, Determining the time axis of the HARQ-ACK feedback information of the UCI where the HARQ-ACK feedback information of the PDCCH is located according to the reception time of the PDCCH for the secondary cell dormancy indication and not scheduling data includes: Determining the time axis of the HARQ-ACK feedback information of the UCI where the HARQ-ACK feedback information of the PDCCH is located according to the reception time of the PDCCH for the secondary cell dormancy indication and not scheduling data and the third time interval; Wherein, the third time interval is the time interval between the last symbol of receiving the PDCCH and the first symbol of the uplink physical channel for feeding back the HARQ-ACK feedback information of the PDCCH.

17. A method for HARQ-ACK feedback of a PDCCH indicating non-scheduled data, comprising: Transmitting configuration information of the high-layer signaling, where the configuration information is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH not scheduling data.

18. According to the method of claim 17, further comprising: Transmitting the high-layer signaling or DCI, where the high-layer signaling or DCI instructs the terminal to feed back the HARQ-ACK feedback information of the PDCCH not scheduling data in the first sub-codebook or the second sub-codebook.

19. A terminal, comprising: The first receiving module is used to receive the configuration information of the high-layer signaling, where the configuration information is used to determine the format of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH not scheduling data.

20. According to the terminal of claim 19, further comprising: The first feedback module is used for: Feeding back the HARQ-ACK feedback information of the PDCCH not scheduling data in the first sub-codebook according to the format of the HARQ-ACK feedback information, where the first sub-codebook is used for transmitting HARQ-ACK feedback at the transport block TB level; Or, feeding back the HARQ-ACK feedback information of the PDCCH not scheduling data in the second sub-codebook according to the format of the HARQ-ACK feedback information, where the second sub-codebook is used for transmitting HARQ-ACK feedback at the codeblock group CBG level.

21. According to the terminal of claim 20, further comprising: The second receiving module is used to receive the high-layer signaling or the downlink control information DCI, where the high-layer signaling or DCI instructs the terminal to feed back the HARQ-ACK feedback information of the PDCCH not scheduling data in the first sub-codebook or the second sub-codebook.

22. According to the terminal of claim 21, wherein, The DCI includes a first field, and the bits in the first field indicate that the terminal feeds back the HARQ-ACK feedback information of the PDCCH not scheduling data in the first sub-codebook or the second sub-codebook; Wherein, the first field includes one or more of the following: Modulation and coding strategy MCS; Redundant version RV; Number of HARQ processes; New transmission data indication NDI; Total downlink allocation index t-DAI.

23. According to the terminal of claim 19, wherein, The configuration information indicates at least one of the following: Number of transport blocks (TBs) of the physical downlink shared channel (PDSCH); Number of codeblock groups (CBGs) of each TB of the PDSCH; Number of transmission and reception points (TRPs) transmitting the PDSCH; The dynamic sub-codebook corresponding to the HARQ-ACK feedback information of the PDCCH that does not schedule data; Whether to enable the HARQ-ACK spatial bundling indication.

24. According to the terminal of claim 23, wherein, The configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2, and the format of the HARQ-ACK feedback information of the PDCCH that does not schedule data includes: 2 HARQ-ACK bits; Or, The configuration information indicates that the maximum number of downlink TBs of the PDSCH is 2 and the HARQ-ACK spatial bundling indication is enabled, and the format of the HARQ-ACK feedback information of the PDCCH that does not schedule data includes: 1 HARQ-ACK bit.

25. The terminal according to claim 23, wherein, The format of the HARQ-ACK feedback information includes: the number of bits of the HARQ-ACK feedback information; wherein, the number of bits of the HARQ-ACK feedback information is determined according to the following: The configuration information indicates the maximum number of CBGs of the TB of the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The configuration information indicates the maximum number of TRPs transmitting the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The configuration information indicates the maximum number of CBGs of the TB of the PDSCH, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitting the PDSCH.

26. The terminal according to claim 25, wherein, The number of bits of the HARQ-ACK feedback information in the dynamic HARQ-ACK codebook of the PDCCH that does not schedule data is equal to: The product of the maximum number of CBGs of the TB of the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The product of the maximum number of TRPs transmitting the PDSCH and the maximum number of TBs transmitted by the PDSCH; Or, The product of the maximum number of CBGs of the TB of the PDSCH, the maximum number of TBs transmitted by the PDSCH, and the maximum number of TRPs transmitting the PDSCH.

27. The terminal according to claim 19, further comprising: A second feedback module, configured to, when detecting the PDCCH that does not schedule data, feedback the HARQ-ACK feedback information of the PDCCH that does not schedule data according to the number of bits of the HARQ-ACK feedback information, where the HARQ-ACK feedback information is an acknowledgement (ACK).

28. The terminal according to claim 27, wherein, All bits in the HARQ-ACK feedback information are ACK; or, the first bit in the HARQ-ACK feedback information is ACK; or, at least one bit in the HARQ-ACK feedback information is ACK.

29. A terminal, comprising: A determination module, configured to determine a time axis of the HARQ-ACK feedback information of the PDCCH in the uplink control information UCI according to a reception time of a PDCCH for secondary cell dormancy indication and not scheduling data, or determine a time axis of the UCI in which the HARQ-ACK feedback information of the PDCCH is multiplexed with other information.

30. The terminal according to claim 29, wherein, The determination module is further configured to: Determine a time axis of the HARQ-ACK feedback information of the PDCCH in the UCI according to a reception time of the last symbol of the PDCCH for secondary cell dormancy indication and not scheduling data and a first time interval; Wherein, the first time interval includes N symbols, and the value of N is related to the value of the subcarrier spacing SCS of the PDCCH, and N is greater than 1.

31. The terminal according to claim 29, wherein, The determination module is further configured to: Determine a time axis of the UCI in which the HARQ-ACK feedback information of the PDCCH is multiplexed with other information according to a time when the last symbol of the PDCCH for secondary cell dormancy indication and not scheduling data is received and a second time interval; Wherein, the second time interval is determined based on one or more of the number of sampling points of the fast Fourier transform FFT or the inverse fast Fourier transform IFFT, the number of sampling points of the cyclic prefix CP, the sampling period, and the subcarrier spacing SCS of the PDCCH.

32. The terminal according to claim 31, wherein, The second time interval is determined by the following formula: T = (N + 1) · (number of FFT or IFFT sampling points + number of sampling points of CP) · κ · 2 -μ · T C Wherein, T represents the second time interval; μ corresponds to the smallest SCS configuration in the SCS configuration of the PDCCH; k is a constant, and T c is the basic time unit; The value of N is related to the value of the SCS of the PDCCH, and N is greater than 1.

33. The terminal according to claim 30 or 32, wherein, When the SCS of the PDCCH = 15 kHz, N = 10; Or, When the SCS of the PDCCH = 30 kHz, N = 12; Or, When the SCS of the PDCCH = 60 kHz, N = 22; Or, When the SCS of the PDCCH = 120 kHz, N = 25; Or, When the SCS of the PDCCH = 15 kHz, N = 5; Or, When the SCS of the PDCCH = 30 kHz, N = 5.5; Or, When the SCS of the PDCCH = 60 kHz, N = 11.

34. The terminal according to claim 29, wherein, The determination module is further configured to: Determine a time axis of the HARQ-ACK feedback information of the PDCCH in the UCI according to a reception time of the PDCCH for secondary cell dormancy indication and not scheduling data and a third time interval; Wherein, the third time interval is a time interval between the reception of the last symbol of the PDCCH and the first symbol of the uplink physical channel for feeding back the HARQ-ACK feedback information of the PDCCH.

35. A network device, comprising: A first transmission module, configured to transmit configuration information of a high-layer signaling, where the configuration information is used to determine a format of HARQ-ACK feedback information in a dynamic HARQ-ACK codebook of a PDCCH that does not schedule data.

36. The network device according to claim 35, further comprising: A second transmission module, configured to transmit the high-layer signaling or DCI, where the high-layer signaling or DCI instructs a terminal to feed back HARQ-ACK feedback information of the PDCCH for the non-scheduled data in a first sub-codebook or a second sub-codebook.

37. A communication device, comprising: A processor, a memory, and a program stored on the memory and executable on the processor, where when the program is executed by the processor, the steps of the method for HARQ-ACK feedback of the PDCCH for non-scheduled data according to any one of claims 1 to 16 are implemented; Or, the steps of the method for indicating HARQ-ACK feedback of the PDCCH for non-scheduled data according to any one of claims 17 to 18.

38. A computer-readable storage medium, wherein, A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for HARQ-ACK feedback of the PDCCH for non-scheduled data according to any one of claims 1 to 16 are implemented; Or, the steps of the method for indicating HARQ-ACK feedback of the PDCCH for non-scheduled data according to any one of claims 17 to 18.