Method and apparatus for transmitting feedback information, terminal and network-side device

Abstract

A method and apparatus for transmitting feedback information, a terminal, and a network-side device are described. The method for transmitting feedback information comprises: receiving feedback time indication information; the terminal is configured with at least one DL SPS configuration resource; the feedback time indication information is used to indicate at least one first candidate time-domain feedback resource; the first candidate time-domain feedback resource is a candidate time-domain resource for transmitting the first feedback information; the first feedback information is feedback information corresponding to a DL data channel of a first target DL SPS; and the first target DL SPS is at least one of at least one DL SPS.determine a target time domain resource according to the feedback time indication information; and transmit the first feedback information on the target time domain resource.

Description

Method and apparatus for transmitting feedback information, terminal and network-side device Technical field This application falls within the field of wireless communication technologies, and specifically relates to a method and apparatus for transmitting feedback information. Background Compared to previous mobile communication systems, fifth-generation (5G) mobile communication systems need to adapt to more diverse service scenarios and requirements. For example, key New Radio (NR) scenarios include enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). These scenarios also impose requirements for high reliability, low latency, high bandwidth, and wide coverage on 5G mobile communication systems. In order to reduce the overhead of downlink control signaling for a periodic service with a fixed packet size, a network-side device can continuously allocate specific resources in a semi-persistent scheduling manner for the transmission of the periodic service. This can reduce the overhead of scheduling relatively small VoLTE voice packets for periodic transmission, such as overhead for a physical downlink control channel (PDCCH), so that more resources can be used to schedule additional terminals (user equipment, UE). Such a semi-persistent downlink scheduling method is called DL SPS (Semi-Persistent Scheduling). Currently, the network-side device can configure, via upper-layer signaling, parameters required by the DL SPS for the terminal, such as the period, number of Hybrid Auto Repeat Request (HARQ) processes, and Hybrid Auto Repeat Request Acknowledgment (HARQ-ACK) feedback resources. After the UE configures a DL SPS resource configuration, the network-side device can activate the configured DL SPS configuration using Downlink Control Information (DCI). The DCI contains transmission parameters for DL ​​SPS transmission, such as the resource and modulation and coding scheme (MCS).Upon receiving the DCI, the UE can determine a DL SPS transmission occasion and a frequency resource for that occasion. For each DL SPS transmission occasion, the UE monitors a corresponding data transmission on the DL SPS resource. For an SPS configuration, a network designates a HARQ-ACK feedback resource for HARQ-ACK feedback from an SPS PDSCH. This HARQ-ACK feedback resource cannot be changed after the SPS configuration is activated, and it is used for HARQ-ACK feedback throughout the HARQ feedback process. When the HARQ-ACK feedback resource collides with a DL resource (or a resource unavailable for uplink transmission), the HARQ-ACK feedback from the SPS PDSCH is dropped, and HARQ-ACK feedback cannot be implemented, resulting in degraded SPS PDSCH performance. EP4181439A1 discloses a method and apparatus for HARQ-ACK feedback to resolve a problem where a terminal cannot perform HARQ-ACK feedback when configured with a DL SPS. The method can be applied to a single terminal. The method includes determining, based on initial information, a HARQ-ACK codebook corresponding to M DL SPS configurations; where the initial information includes at least one of the following: first HARQ-ACK feedback indication information, first TDD configuration information, and first dynamic slot format information; and M ≥ 1, where M is an integer. CMCC: "Discussion on scheduling and HARQ management", 3GPP DRAFT; R1-1806368 proposes configuring multiple HARQ-ACK resources for a DL SPS transmission by RRC signaling, and the UE uses the first valid HARQ-ACK resource for the DL SPS ACK / NACK transmission, where valid HARQ-ACK resource means that the HARQ-ACK resource is not earlier than n+ky and not designated as "DL" by the DL / UL semi-static configuration. Summary The embodiments of this application are intended to provide a method and apparatus for transmitting feedback information, a terminal, and a network-side device to solve a problem where HARQ-ACK feedback cannot be implemented because an SPS configuration has only one HARQ ACK feedback resource. The invention is set forth in the appended claims. In the realizations of this request, a terminal determines a target time domain resource based on the received feedback time indication information, and transmits the first feedback information on the target time domain resource, where the terminal is configured with at least one DL resource SPS configuration, the feedback time indication information is used to indicate at least one first candidate time domain feedback resource, the first candidate time domain feedback resource is a candidate time domain resource for transmitting the first feedback information, the first feedback information is feedback information corresponding to a downlink data channel of a first target DL SPS, and the first target DL SPS is at least one of the at least one DL SPS.Therefore, the technical solutions provided in this request specify at least one candidate time-domain feedback resource for a first target DL SPS, thus avoiding the problem of HARQ-ACK feedback not being implemented because an SPS configuration has only one HARQ-ACK feedback resource. Especially when configuring multiple SPS configurations or with many DL resources, this avoids a performance degradation problem in an SPS PDSCH caused by the frequent discarding of a HARQ-ACK for the SPS PDSCH. Brief description of the drawings Figure 1 is a schematic structural diagram of a communications system according to an example implementation of this application. Figure 2 is a schematic flowchart of a method for transmitting feedback information, applied to a terminal, according to an example implementation of this application; Figure 3 is a schematic flowchart of a method for transmitting feedback information, applied to a terminal, according to another example embodiment of this application; Figure 4 is a schematic flowchart of a method for indicating a feedback time, applied to a network-side device, according to an example implementation of this application; Figure 5 is a schematic flowchart of a method for indicating a feedback time, applied to a network-side device, according to another example embodiment of this application; Figure 6 is a schematic diagram of a slot structure according to an example embodiment of this application; Figure 7 is a schematic diagram of a slot structure according to another example embodiment of this application; Figure 8 is a schematic diagram of a slot structure according to another example embodiment of this application; Figure 9 is a schematic diagram of a slot structure according to another example embodiment of this application; Figure 10 is a schematic diagram of a slot structure according to another example embodiment of this application; Figure 11 is a schematic diagram of a slot structure according to another example embodiment of this application; Figure 12 is a schematic block diagram of an apparatus for transmitting feedback information according to an example embodiment of this application; Figure 13 is a schematic block diagram of a terminal according to an example implementation of this application; Figure 14a is a schematic block diagram of an apparatus for indicating a feedback time according to an example embodiment of this application; Figure 14b is a schematic block diagram of an apparatus for indicating a feedback time according to another example embodiment of this application; and Figure 15 is a schematic block diagram of a network-side device according to an example implementation of this application. The embodiments of Figure 13-15 are not covered by the claimed invention. Description of the achievements The following clearly and completely describes the technical solutions in the embodiments of this application with reference to the accompanying drawings. Apparently, the embodiments described are some, rather than all, of the embodiments of this application. All other embodiments obtained by a person skilled in the art based on the embodiments of this application without creative effort shall fall within the scope of protection of this application. The terms "first," "second," and the like in this specification and the claims of this application are used to distinguish between similar objects rather than to describe a specific order or sequence. It should be understood that the terms used in this manner are interchangeable in appropriate circumstances so that the embodiments of this application may be implemented in orders other than the order illustrated or described herein. Furthermore, "first" and "second" are normally used to distinguish objects of the same type and do not restrict a number of objects. For example, there may be one or a plurality of first objects. In addition, "and / or" in the specification and the claims represents at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects. It should be noted that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-Advanced, LTE-A) systems, and may also be used in other 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. The terms "system" and "network" in the embodiments of this application are often used interchangeably.The technology described can be used in the radio systems and technologies mentioned above, as well as in other radio systems and technologies. However, in the following descriptions, a new radio system is described for illustrative purposes, and NR terms are used in most of the following descriptions. These technologies can also be applied to applications other than an NR system application, such as a sixth-generation (6G) communications system. Figure 1 is a block diagram of a wireless communications system to which an implementation of this application is applicable. The wireless communications system includes a terminal 11 and a network-side device 12. Terminal 11 may also be referred to as a terminal device or a user terminal. Terminal 11 may be a terminal-side device such as a mobile phone, a tablet computer, a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a handheld computer, a netbook, an ultramobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or vehicle user equipment (VUE) or pedestrian user equipment (PUE).The wearable device includes a wristband, headphones, glasses, and similar items. It should be noted that a specific type of Terminal 11 is not limited in the realizations of this application. The device on the network side 12 can be a base station or a backbone network, where the base station can be referred to as an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a Node B, an evolved B Node (eNB), a home B Node, a home evolved B Node, a WLAN access point, a Wi-Fi node, a transmit and receive point (TRP), or another term appropriate in the art. Provided the same technical effects are achieved, the base station is not restricted to a specific technical term. It should be noted that the base station in the NR system is used merely as an example in the embodiments of this application, but a specific type of base station is not restricted. The following describes in detail the technical solutions provided in the implementations of this application through specific implementations and application scenarios thereof with reference to the attached drawings. The following technical solutions provided in the realizations may be applicable to licensed bands (licensed band), and may also be applicable to a time-division duplex scenario (time-division duplex, TDD) or a frequency-division duplex scenario (frequency-division duplex, FDD) in unlicensed bands (unlicensed band), for example, a scenario in which a HARQ-ACK cannot be transmitted due to listen-before-you-talk (listen-before-you-talk, LBT). It should be understood that in a future communications system, an unlicensed band can be used as a complement to licensed bands to help an operator expand services. To be consistent with an NR (New Radio, New Radio) deployment and maximize NR-based access in an unlicensed frequency band, unlicensed bands can be configured in the 5 GHz, 37 GHz, and 60 GHz frequency bands. A large bandwidth (80 MHz or 100 MHz) in the unlicensed bands can reduce the deployment complexity of base stations and UEs (Unified Equipment).Since unlicensed bands are shared by multiple radio access technologies (RATs), such as Wi-Fi, radar, and LTE-LAA, in some countries or regions, their use must comply with regulations, such as Line-to-Broadcast (LBT) rules and Maximum Channel Occupancy Time (MCOT), to ensure that all devices can use the resource fairly. When data needs to be transmitted, a transmitting node must first perform LBT to detect energy (Energy Detection, ED) on surrounding nodes. When the detected power is below a threshold, a channel is considered idle, and the transmitting node can send data. Otherwise, the channel is considered busy, and the transmitting node cannot send data. The transmitting node can be a base station, UE (Unified Equipment), a Wi-Fi access point, or similar device.After the transmitting node begins transmitting, the channel occupancy time (COT) cannot be greater than the MCOT. In addition, commonly used LBT categories may include category 1, category 2, and category 4, where: In Category 1 LBT, a sending node does not perform LBT, meaning there is no LBT or immediate transmission (Immediate Transmission); Category 2 LBT means one-slot LBT, meaning a node performs LBT once before transmission, and transmission occurs when the channel is idle, or no transmission occurs when the channel is busy; and Category 4 LBT signifies a channel listening mechanism based on attenuation. When a channel is detected as busy, the transmitting node performs attenuation and continues listening until it detects an idle channel. In the three commonly used categories above, for a base station (gNB), the Category 2 LBT can be applied to DRS (Discovery Signal, Discovery Reference Signal); and the Category 4 LBT can be applied to PDSCH / DCI / eDCI. For a terminal, the Category 4 LBT can be applied to a Type 1 UL channel access procedure; the Category 2 LBT can be applied to a Type 2 UL channel access procedure. Additionally, in NR-U, a Category 2 LBT is added again, corresponding to a gap of 16 µs. Furthermore, Figure 2 is a schematic flowchart of a Method 200 for transmitting feedback information according to an example implementation of this application. The Method 200 for transmitting feedback information can be performed by a terminal, and specifically, it can be performed by hardware and / or software installed on the terminal.Still referring to figure 2, the method may include at least the following steps. S210. Receive feedback time indication information. The feedback timing indication information can be sent by a network-side device and is used to indicate at least one first candidate time-domain feedback resource (also referred to as a feedback opportunity, candidate opportunity, feedback resource, or similar). The first candidate time-domain feedback resource is a candidate time-domain resource for transmitting first feedback information (such as a HARQ-ACK or HARQ-NACK). The terminal can be configured with at least one DL SPS configuration resource. The first feedback information is feedback information that corresponds to a downlink data channel of a target first DL SPS, and the target first DL SPS is at least one of the at least one DL SPS. In this implementation of this request, the feedback time indication information is used to indicate a candidate time-domain feedback resource used by the HARQ-ACK feedback. In a possible implementation, a method for configuring the feedback time indication information can be flexibly set according to actual requirements. For example, the feedback time indication information can be designed by the network-side device based on the downlink (DL) transmission time domain resource configuration. Therefore, when the terminal determines a target time domain resource to transmit initial feedback information based on the feedback time indication information, the following problem in the prior art can be avoided: The HARQ-ACK feedback times of different DL SPS configurations are unrelated and relatively dispersed because a HARQ-ACK feedback time for each DL SPS configuration is indicated in a separate active DCI.Furthermore, the following problem can be avoided: A collision between the target time-domain resource and the downlink transmission time-domain resource causes the first feedback information to be discarded, thus preventing feedback from being implemented. This is especially true when there are multiple DL SPS configuration resources, as the discarding of the first feedback information due to time-domain resource collisions occurs more frequently. This approach effectively ensures the reliability of feedback transmission and improves its transmission performance. Optionally, a type of initial feedback information can be designed according to actual communication requirements, which are not limited in this embodiment. For example, the initial feedback information could be feedback information for some or all of the HARQ processes for the first target DL SPS, such as a HARQ-ACK or a HARQ-NACK. In one or more embodiments of this request, the terminal receiving feedback time indication information includes receiving the feedback time indication information sent in one of the following ways (1) to (3). (1) Send feedback time indication information to the terminal using Radio Resource Control (Radio Resource Control, RRC). (2) Sending feedback time indication information to the terminal by common group DCI, where the feedback time indication information for terminals in a group of terminals can be jointly indicated by sending the feedback time indication information to the terminal by common group DCI. (3) Send feedback time indication information to the terminal by specific DCI to the terminal, i.e., the DCI is specific to the terminal. S220. Determine a target time domain resource based on feedback time indication information. One way in which the terminal determines a target time domain resource varies with the feedback time indication information.For example, if a first candidate time domain resource indicated in the feedback time indication information is a specific feedback occasion (for example, the first candidate time domain resource may be one or more time slots, symbols, subslots, subframes, or the like), the target time domain resource may be the first candidate time domain resource; if a first candidate time domain resource in the feedback time indication information is feedback occasion reference information, the terminal may determine the target time domain resource based on the feedback occasion reference information and a pre-established target time domain determination rule; and so on, which are not limited in this embodiment. S230. Transmit the first feedback information on the target time domain resource. In one implementation, the first feedback information is, for example, a HARQ-ACK. During the transmission of this first feedback information, the previous HARQ-ACK feedback can correspond to all HARQ process numbers (HARQ process numbers) / IDs configured by a DL SPS configuration or a group of DL SPS configurations, or it can correspond to HARQ process numbers / IDs corresponding to the DL SPSs transmitted from slot (nk) to slot (n), where slot (n) is a slot in which the terminal receives the trigger HARQ-ACK feedback, and k can be a predefined value configured by a network side, for example, the largest value in a set K1. It should be understood that each terminal can configure a terminal-specific HARQ-ACK timing table per RRC.The table contains a plurality of HARQ-ACK timing values, referred to as K1 values, and K1 can be in a slot unit. When downlink data transmission is dynamically scheduled, the network-side device (such as a base station) can indicate a K1 value as an index in DCI. The K1 value is a value selected from the terminal-specific HARQ-ACK timing table and is used to notify the terminal of an occasion to return HARQ-ACK. In the previous method for transmitting feedback information provided in this embodiment, the terminal receives the feedback time indication information and determines the target time domain resource for transmitting the first feedback information based on the feedback time indication information. This avoids the following problem in the previous technique: A feedback time (i.e., a time domain resource) for feedback information (such as a HARQ-ACK) from each DL SPS configuration is indicated in a separate active DCI, resulting in some feedback information (such as a HARQ-ACK for an SPS PDSCH) always being discarded and the SPS PDSCH performance being degraded. Figure 3 is a schematic flowchart of a Method 300 for transmitting feedback information, according to an example implementation of this application. Method 300 for transmitting feedback information can be implemented by a terminal, and specifically by hardware and / or software installed on the terminal. Referring to Figure 3, the method may include at least the following steps. S310. Receive feedback time indication information. For S310, you may refer to the detailed descriptions in S210. In addition, in a possible implementation of this request, the feedback time indication information may include at least one of the following (1) to (8). (1) A feedback time window. The feedback time window can be understood as a period of time of a specific duration, and within the feedback time window, at least one of the first candidate time-domain feedback resources can be included. In an implementation, the feedback time window may include at least one time unit, and each time unit includes at least one of the first candidate time-domain feedback resource, where the time unit may be, but is not limited to, slot, subslot, subframe, or symbol. (2) A starting position of the first candidate time-domain feedback resource. In practical applications, the actual start position of a candidate time-domain resource, as indicated by the start position, varies with the number of first candidate time-domain resources included in the feedback time window and the number of start positions included in the feedback time indication information. The specific analysis is as follows. (21) When the feedback time window includes a plurality of candidate first time-domain feedback resources, the feedback time indication information includes start positions of one or more candidate first time-domain feedback resources. (210) In the event that the feedback time indication information includes a start position of a first candidate time domain feedback resource (such as a first candidate time domain feedback resource within the feedback time window), the start positions of the remaining first candidate time domain feedback resources are derived by the terminal according to a length of each first candidate time domain feedback resource or similar. For example, the feedback time indication information is assumed to include a start position Q, a length of the 1st candidate time domain resource in the feedback time window of L1, a length of the 2nd candidate time domain resource of L2, and a length of the 3rd candidate time domain resource of L3. In this case, the start position of the 1st candidate time domain resource is Q, the start position of the 2nd candidate time domain resource is Q+L1+1, the start position of the 3rd candidate time domain resource is Q+L1+L2+1, and the start position of the 4th candidate time domain resource is Q+L1+L2+L3+1. It should be noted that in practical applications, when there is a starting position, a resource range L can be preconfigured between adjacent first candidate time-domain resources. For example, still using the previous example, the starting position of the second first candidate time-domain resource could be Q+L1+1+L. (211) In a case where the feedback time indication information includes start positions of a plurality of candidate first time-domain feedback resources, a start position corresponds to one of the candidate first time-domain feedback resources, i.e., the start positions are in a one-to-one correspondence with the candidate first time-domain resources. For example, the starting positions are assumed to include Q1, Q2, Q3, and Q4. In this case, the starting position of the 1st candidate time domain resource is Q1, the starting position of the 2nd candidate time domain resource is Q2, the starting position of the 3rd candidate time domain resource is Q3, and the starting position of the 4th candidate time domain resource is Q4. (22) In the event that the feedback time window includes a plurality of time units, and each time unit includes a plurality of candidate first time domain feedback resources, the feedback time indication information includes start positions of one or more candidate first time domain feedback resources. (220) In a case where the feedback time indication information includes a start position of a first candidate time-domain feedback resource, the start position is used to indicate a start position of a first candidate time-domain feedback resource in each time unit. (221) In a case where the feedback time indication information includes start positions of a plurality of first candidate time-domain feedback resources, a start position corresponds to a time unit, i.e., each start position indicates the start position of the first candidate time-domain feedback resource in one time unit. (222) In a case where the feedback time indication information includes start positions of a plurality of candidate first time-domain feedback resources, each start position indicates a start position of each candidate first time-domain feedback resource in a unit of time. (3) A length of the first candidate time-domain feedback resource. In a case where the feedback time window includes a plurality of candidate first time-domain feedback resources, one or more length values ​​of the candidate first time-domain feedback resources may be included. For example, when there is a plurality of first candidate time-domain feedback resources, the lengths of all first candidate time-domain feedback resources may be L1; alternatively, the length of the 1st first candidate time-domain resource is L1, the length of the 2nd first candidate time-domain resource is L2, the length of the 3rd first candidate time-domain resource is L3, ...; alternatively, the lengths of the 1st and 3rd first candidate time-domain resources are L1, the length of the 2nd first candidate time-domain resource is L2; ​​and so on, which are not limited in this embodiment. (4) A final position of the first candidate time-domain feedback resource. If the feedback time indication information (i.e., the feedback time window) includes a plurality of candidate first time-domain resources, there may also be one or more end positions. If the feedback time window includes a plurality of time units, and each time unit includes a plurality of candidate first time-domain feedback resources, the feedback time indication information includes a plurality of end positions, where an end position corresponds to a time unit or an end position corresponds to one of the candidate first time-domain feedback resources. For related descriptions, see the detailed descriptions in section (2) above, and those details are not repeated herein. (5) A quantity of the first candidate time-domain feedback resources. (6) A number or set of numbers for the first candidate time-domain feedback resource. The number may be 1-100 or similar. In this embodiment, a number or set of numbers is used to denote a target resource or set of target resources. (7) An offset value (such as K1, displacement). The offset value includes either the offset value of the first candidate time-domain feedback resource relative to a first reference point, or the offset value of the feedback time window relative to the first reference point. Optionally, the offset value can be the offset value of a start position, an offset value of a final position, or similar. In practical applications, the first reference point may include one of the following. (71) A subframe boundary (Boundary). For example, the boundary can be a start position or an end position of the subframe. In addition, the first reference point can alternatively be any time point in the subframe, which is not limited in this embodiment. (72) One DCI reception occasion to activate a second target DL SPS. (73) An occasion for receiving a first downlink data channel from the second target DL SPS. (74) An occasion for receiving feedback information corresponding to a first downlink data channel from the second target DL SPS. In points (72) - (74) above, the second target DL SPS may be a DL SPS with a smaller or larger identifier than the first target DL SPS, and a feedback information instance corresponding to a downlink data channel of the second target DL SPS may be indicated in active DCI. It can be understood that when the terminal is configured with a plurality of DL SPS configuration resources, for ease of identification, each of the DL SPSs is configured with a unique identifier. In addition, a first downlink data channel can be, but is not limited to, a downlink shared physical channel PDSCH, and, for example, can be a first PDSCH after active DCI is received (such as first DCI). (8) The feedback time indication information may additionally include a period (N_interval), the first candidate time-domain feedback resource, or a period of the feedback time window. The period may be an interval between two consecutive feedback time windows or an interval between two consecutive first candidate time-domain resources, which is not limited in this implementation. It should be noted that the feedback time indication information provided in this embodiment may include one or more of the eight types of information above or may include information that can be used to indicate a first candidate time domain resource other than the eight types of information above, which is not limited in this embodiment. It should be understood that when the feedback time indication information includes only any one of the eight types of information above, the terminal may determine the target time domain resource according to a preconfigured target time domain resource determination rule, or the terminal may determine a target time domain resource using a method specified in a protocol or using other existing indication information (such as indication in the active DCI or information indicated by other RRC configurations), which is not limited in this embodiment. Example 1: Assuming that the feedback time indication information includes only a start position of a first candidate time domain resource, the target time domain resource determination rule can be a preconfigured length of a candidate time domain resource, and the terminal can uniquely determine the target time domain resource according to the start position and preconfigured length of the candidate time domain resource. Example 2: Assuming that the feedback time indication information includes only a length of a first candidate time domain resource, the target time domain resource determination rule can be a preconfigured start position and / or end position of a candidate time domain resource, and the terminal can uniquely determine the target time domain resource according to the preconfigured start position and / or end position of the candidate time domain resource and the length of the first candidate time domain resource. When the feedback time indication information includes only one of several pieces of information, for a way to determine the target time domain resource, reference may be made to the detailed descriptions in Example 1 and Example 2, and those details are not repeated herein in this embodiment. Furthermore, in one possible implementation, the first target DL SPS includes any one of the following (1) through (4). (1) All DL SPS configured for the terminal. (2) DL SPS with a specified priority. For example, the specified priority includes a higher priority (priority) and / or a lower priority; or the specified priority is a priority = X; or the specified priority is a set of priorities, and the set of priorities includes a plurality of priorities. During actual implementation, if the feedback time indication information sent by the network-side device is for a DL SPS with a priority = X, correspondingly, the subsequent determination of a first reference point also corresponds to a DL SPS with priority X. It should be noted that a priority corresponding to a DL SPS configuration mentioned in the realizations of this request may be a priority corresponding to an SPS PDSCH in the DL SPS configuration, or it may be a priority of a HARQ-ACK corresponding to the SPS PDSCH in the DL SPS configuration, or it may be a priority of a HARQ-ACK codebook corresponding to the SPS PDSCH in the DL SPS configuration. (3) DL SPS with a specified identifier. For example, the specified identifier can be one or more identifiers specified by the network-side device. (4) Active DL SPS. The above active DL SPS may include, but is not limited to, an active DCI that is activated via an active DCI that corresponds to the first target DL SPS. In addition, the active DL SPS may mean all active DL SPSs configured by the terminal. S320. Determine a target time domain resource based on feedback time indication information. For S320, you can refer to the detailed descriptions in S220 and S310. In addition, in a possible implementation, still referring to Figure 3, the determination of a target time domain resource according to the feedback time indication information in S320 may additionally include the following steps S3201 to S3203. S3201. Determine a second candidate time domain resource for the first feedback information based on an indication from the first DCI for the first target DL SPS in a case where the feedback time indication information includes the feedback time window. The first DCI is the DCI to activate the first target DL SPS. Optionally, the first DCI can be an active DCI recently received by the terminal or an active DCI that corresponds to the first target DL SPS, which is not limited in this embodiment. In practical applications, the first DCI can also be used to indicate a feedback time / occasion (i.e., a second candidate time-domain resource) of first feedback information that corresponds to the first target DL SPS. Accordingly, if K1 (numeric, numeric) is indicated in the first DCI, the second candidate time-domain resource can be considered to be indicated in the first DCI. S3202. Determine the second candidate time domain resource as the target time domain resource in a case where the second candidate time domain resource is within the feedback time window. S3203. Determine one of the first candidate time-domain feedback resources within the feedback time window as the target time-domain resource in a case where the second candidate time-domain resource is not within the feedback time window. Furthermore, in the event that the second candidate time domain resource is not within the feedback time window and the feedback time window includes a plurality of the first candidate time domain resources, one of the first candidate time domain resources that is within a plurality of the first candidate time domain resources and that is later and closer to the second candidate time domain resource is determined to be the target time domain resource. In addition to the second candidate time domain resource being indicated in the first DCI above to activate the first target DL SPS, in a possible implementation, the second DCI is received in a case where there is no third candidate time domain resource (which can also be understood as the second candidate time domain resource) indicated in the first DCI. When NNK1 (non-numeric K1, non-numeric) is indicated in the first DCI, it can be understood that no third candidate time domain resource is indicated in the first DCI. The second DCI is used to trigger feedback on a downlink data channel (such as a PDSCH) for the first target DL SPS. In this case, a fourth candidate time-domain resource indicated by the second DCI can be determined as the target time-domain resource, or the first candidate time-domain resource can be determined as the target time-domain resource. It can be understood that whether the fourth candidate time-domain resource or the first candidate time-domain resource is determined as the target time-domain resource can be determined based on an indication from the network-side device or by referring to the descriptions in the earlier S3201-S3203, which are not limited in this embodiment. The second DCI may include at least one of the following: DCI that includes a downlink grant with downlink data channel planning, DCI that includes a downlink grant without downlink data channel planning (such as a DL grant without PDSCH planning), DCI that includes an uplink grant with uplink data channel planning (such as a UL grant with PUSCH planning), and DCI that includes an uplink grant without uplink data channel planning (such as a UL grant without PUSCH planning). In a possible implementation in this application, the second DCI can be randomized by a preset Radio Network Temporary Identifier (RNTI), such as a CS-RNTI. The preset RNTI is transmitted according to SPS or semi-static transmission scheduling. It should be noted that the terminal can perform some or all of the steps in S320 when the target time-domain resource is determined, which is not limited in this implementation. Furthermore, in one or more implementations of this request, to ensure reliable transmission of data over a downlink, after determining the target time domain resources, the terminal can perform a determination of whether the target time domain resource collides with a target time domain resource for downlink transmission in S330, and if not, perform S340, or if so, perform S350. S330. Determine if the target time domain resource collides with a time domain resource for downlink transmission. Determining whether time domain resources collide can be implemented by comparing whether the target time domain resource is the same as the time domain resource for downlink transmission, or whether the target time domain resource falls within the time domain resource for downlink transmission, or similar, which is not limited in this embodiment. S340. Transmit the first feedback information on the target time domain resource. For related descriptions concerning S340, reference may be made to the detailed descriptions in the S230 above, and the details are not repeated in this document for this embodiment. S350. Skip transmitting the first feedback information on the target time-domain resource. After S350 skips transmitting the first feedback information, the first feedback information can be discarded directly, or the terminal can wait to transmit the first feedback information on a subsequent target time-domain resource to ensure normal transmission of the first feedback information, which is not specifically limited in this embodiment. It should be noted that the feedback transmission method 200 or 300 provided in the embodiments of this application may be implemented by a feedback transmission device, or by a control module, in the feedback transmission device. In subsequent descriptions of an embodiment of this application, the feedback transmission device provided in that embodiment is described using an example in which the feedback transmission device implements the feedback transmission method 200 or 300. Figure 4 is a schematic flowchart of a 400 method for indicating a feedback time, according to an example implementation of this application. The 400 method for indicating a feedback time can be implemented by a network-side device, and specifically by hardware and / or software installed on the network-side device. Referring to Figure 4, the method may include at least the following steps. S410. Send feedback time indication information to a terminal. The feedback time indication information is used to indicate at least one first candidate time domain feedback resource. The first candidate time domain feedback resource is a candidate time domain resource for transmitting the first feedback information. The first feedback information is feedback information corresponding to a downlink data channel, and the downlink data channel is a data channel that corresponds to a first target DL SPS configured for the terminal. It should be noted that the network-side device can configure one or more DL SPS resources for the terminal or configure one DL SPS resource for a plurality of terminals, which is not limited in this embodiment. For related descriptions of S410, please refer to the detailed descriptions in S210 and S310 above. To avoid repetition, the details are not repeated in this embodiment. In Method 400 for indicating a feedback time provided in this embodiment, the network side sends the feedback time indication information to the terminal to allow the terminal to determine a time-domain resource for transmitting the first feedback information based on the feedback time indication information. This avoids the following problem in the prior art: A feedback time (i.e., a time-domain resource) for feedback information (such as a HARQ-ACK) from each DL SPS configuration is indicated in a separate active DCI, resulting in some feedback information (such as a HARQ-ACK for an SPS PDSCH) always being discarded and the SPS PDSCH performance being degraded. Figure 5 is a schematic flowchart of a 500 method for indicating a feedback time, according to an example implementation of this application. The 500 method for indicating a feedback time can be implemented by a network-side device, and specifically by hardware and / or software installed on the network-side device. Referring to Figure 5, the method may include at least the following steps. S510. Send feedback time indication information to a terminal. For S510, you can refer to the detailed descriptions in S410. Additionally, in a possible implementation, the first target DL SPS includes any one of the following: (1) all DL SPS configured for the terminal; (2) a DL SPS with a specified priority, wherein the specified priority includes a higher priority and / or a lower priority; or the specified priority is a set of priorities, and the set of priorities includes a plurality of priorities; (3) a DL SPS with a specified identifier, where the specified identifier is one or more identifiers specified by the network-side device; and (4) an active DL SPS. The above active DL SPS can be activated through, but without limitation, an active DCI corresponding to the first target DL SPS. In one or more embodiments of this request, the feedback time indication information includes any one of the following. (1) A feedback time window, wherein the feedback time window includes at least one first candidate time domain feedback resource. Optionally, the feedback time window includes at least one time unit, and each time unit includes at least one of the first candidate time-domain feedback resources, where the time unit is slot, subslot, or subframe. (2) A starting position of the first candidate time-domain feedback resource. In a possible implementation, in the event that the feedback time window includes a plurality of time units, and each time unit includes a plurality of first candidate time-domain feedback resources, the feedback time indication information includes a plurality of start positions or end positions, where a start position or end position corresponds to a time unit, or a start position or end position corresponds to one of the first candidate time-domain feedback resources. (3) A length of the first candidate time-domain feedback resource. In a case where the feedback time window includes a plurality of first candidate time-domain feedback resources, one or more length values ​​of the first candidate time-domain feedback resources are included. (4) A final position of the first candidate time-domain feedback resource. (5) A quantity of the first candidate time-domain feedback resources. (6) A number or set of numbers from the first candidate time-domain feedback resource. (7) An offset value. The offset value includes either an offset value of the first candidate time-domain feedback resource relative to a first reference point or an offset value of the feedback time window relative to the first reference point. Optionally, the first reference point includes at least one of the following: (71) a subplot boundary; (72) a DCI reception occasion to activate a second target DL SPS, wherein the second target DL SPS is an active DL SPS with a smaller or larger identifier; (73) an occasion of receiving a first downlink data channel from the second target DL SPS; and (74) a feedback information occasion that corresponds to a first downlink data channel of the second target DL SPS. In points (72) - (74) above, the second target DL SPS is a DL SPS with a smaller or larger identifier than the first target DL SPS. (8) A period of the first candidate time-domain feedback resource or a period of the feedback time window. It should be noted that, for feedback timing information for the first target DL SPS and related descriptions concerning feedback timing information, reference may be made to the detailed descriptions in the previous Method 300 for transmitting feedback information. To avoid repetition, the details are not repeated herein in this implementation. Furthermore, in one or more embodiments of this request, the network-side device sending feedback timing information to a terminal includes sending the feedback timing information to the terminal in one of the following ways: (1) send feedback time indication information to the terminal via RRC; (2) send feedback time indication information to the terminal via common group DCI; and (3) send feedback time indication information to the terminal via terminal-specific DCI. It should be noted that for detailed descriptions of how to transmit feedback timing information, reference may be made to the detailed descriptions in Method 300 above for transmitting feedback information. To avoid repetition, the details are not repeated herein for this implementation. S520. Enable feedback on a downlink data channel of the first target DL SPS by the second DCI in a case where no second candidate time domain resource is indicated for the first feedback information in the first DCI corresponding to the first target DL SPS. The first DCI is DCI to activate the first target DL SPS. Optionally, the second DCI includes any one of the following: DCI that includes a downlink grant with downlink data channel planning, DCI that includes a downlink grant without downlink data channel planning, DCI that includes an uplink grant with uplink data channel planning, and DCI that includes an uplink grant without uplink data channel planning. The second DCI is used to activate feedback on a downlink data channel of a third target DL SPS, the third target DL SPS includes the first target DL SPS, and the third target DL SPS includes any one of the following: (1) all active DL SPSs in the DL SPS configured by the terminal; (2) an active DL SPS configured by the terminal and having a specified priority; and (3) one or more specified active DL SPS. In addition, the second DCI is also used to indicate a fourth candidate time-domain resource for the transmission of the first feedback information. For related descriptions concerning S520, reference may be made to the detailed descriptions in Method 200 or 300 for transmitting feedback information, and the details are not repeated in this embodiment. It should be noted that Method 400 or 500 for indicating a feedback time provided in this embodiment of this application may be performed by a feedback-time indicating device, or by a control module, to perform Method 400 or 500 for indicating a feedback time, in the feedback-time indicating device. In subsequent descriptions in an embodiment of this application, the feedback-time indicating device provided in this embodiment of this application is described using an example in which the feedback-time indicating device performs Method 400 or 500 for indicating a feedback time. Based on the descriptions of method 200 or 300 for transmitting feedback information and method 400 or 500 for indicating a feedback time, the following further describes the above methods with reference to specific embodiments. Numbers 1, 2, 3, 4, ... shown in Figure 6 to Figure 11 respectively represent a corresponding SPS PDSCH, the SPS 1 feedback occasion is a second candidate time-domain resource indicated by the first DCI (active DCI), and the SPS A / N feedback resource is the first candidate time-domain resource indicated by the feedback time indication information. Implementation 1 As shown in Figure 6, a terminal is assumed to be configured with two DL SPS configuration resources, SPS 1 and SPS 2. The first feedback information is HARQ-ACK. The feedback time (i.e., a second candidate time-domain resource) for HARQ-ACK for SPS 1, indicated by the first DCI, is K1=1 slot, and the feedback time for HARQ-ACK of SPS 2 is K1=2 slots. SPS is configured by RRC, and a first reference point is a subframe boundary. A network-side device configures all DL SPSs; that is, a feedback time window included in the feedback time indication information is a HARQ-ACK feedback time window shared by SPS 1 and SPS 2. The feedback time window includes 4 consecutive time slots, and each time slot includes candidate opportunities (i.e., first candidate time domain resources) for HARQ-ACK feedback from the two SPSs. A network configures a K1 offset value, SPS relative to an active DCI receive occasion for an SPS, i.e., SPS 1, with a smaller number in an SPS configuration, to determine a starting position for the HARQ-ACK feedback time window. RRC configures an interval between two HARQ-ACK feedback time windows. For SPS 1 PDSCH No. 2, the corresponding HARQ-ACK 1 feedback occasion does not fall within the SPS HARQ-ACK feedback time window, and the terminal does not feed back HARQ-ACK for SPS 1 PDSCH No. 2 at HARQ-ACK feedback occasion 1; and the terminal feeds back HARQ-ACK for SPS 1 PDSCH No. 2 within the SPS HARQ-ACK feedback time window. For SPS 2 PDSCH No. 2, the corresponding HARQ-ACK 2 feedback occasion is located within the SPS HARQ-ACK feedback time window, and the terminal feeds back the HARQ-ACK for SPS 2 PDSCH No. 2 at the HARQ-ACK 2 feedback occasion. It should be noted that (a), (b) and (c) shown in Figure 6 indicate respectively that each feedback time window includes N consecutive SPS HARQ-ACK feedback resources (i.e., the first candidate time domain resources) of the same length, that each feedback time window includes N non-consecutive SPS HARQ-ACK feedback resources of the same length, and that each feedback time window includes N non-consecutive SPS HARQ-ACK feedback resources of different lengths. Implementation 2 As shown in Figure 7, a terminal is configured with two DL SPS configuration resources, SPS 1 and SPS 2, and the first feedback information is a HARQ-ACK. K1, SPS is configured by RRC, and a first reference point is a subframe boundary. A network-side device configures all DL SPSs, i.e., a common HARQ-ACK candidate opportunity (a first candidate time-domain resource) for SPS 1 and SPS 2. An offset value of the HARQ-ACK candidate opportunity with respect to the subframe boundary is K1, SPS. For SPS 1 and SPS 2 PDSCHs, the terminal feeds back the HARQ-ACK for an SPS PDSCH on feedback occasion 1, which corresponds to an SPS A / N feedback resource. Implementation 3 As shown in Figure 8, a terminal is configured with two DL SPS configuration resources, SPS 1 and SPS 2, and the first feedback information is a HARQ-ACK. K1, SPS is configured by RRC; a first reference point is an active DCI receive event to activate an SPS with a smaller number (lower index), and an interval is configured by RRC. A network-side device configures all SPSs, i.e., a common HARQ-ACK candidate opportunity (a first candidate time-domain resource) for SPS 1 and SPS 2. An offset value of the HARQ-ACK candidate opportunity relative to an active DCI receive occasion (first DCI) for an SPS (i.e., SPS 1) with a lower number in the SPS configuration is K1, SPS, and an interval between two SPS HARQ-ACK feedback occasions is configured by RRC. For SPS 1 and SPS 2 PDSCHs, the terminal feeds back the HARQ-ACK for an SPS PDSCH on feedback occasion 1, which corresponds to an SPS A / N feedback resource. Implementation 4 As shown in Figure 9, a terminal is configured with two SPS configuration resources, DL SPS 1 and SPS 2, and the first feedback information is a HARQ-ACK. K1, SPS is configured by RRC, a first reference point is the reception of the first PDSCH from an active lower-index SPS, and an interval is configured by RRC. A network-side device configures all SPSs, i.e., a common HARQ-ACK candidate opportunity (a first candidate time-domain resource) for SPS 1 and SPS 2. An offset value of the HARQ-ACK feedback time-domain resource relative to a receive occasion of a first SPS PDSCH from an SPS (i.e., SPS 1) with a smaller number in the SPS configuration is K1, SPS, and an interval between two SPS HARQ-ACK feedback occasions is configured by RRC. For SPS 1 and SPS 2 PDSCHs, the terminal feeds back the HARQ-ACK for an SPS PDSCH on the feed occasion 1 which corresponds to an SPS A / N feedback resource. Implementation 5 As shown in Figure 10, a terminal is configured with two DL SPS configuration resources, SPS 1 and SPS 2, and the first feedback information is a HARQ-ACK. K1, SPS is configured by RRC; a first reference point is a HARQ-ACK feedback instance for a first PDSCH of a lower-index active SPS, which is determined based on K1 indicated in the active DCI, and an interval is configured by RRC. A network-side device configures all SPSs, i.e., a common HARQ-ACK feedback time domain resource (a first candidate time domain resource) for SPS 1 and SPS 2. The offset value of the HARQ-ACK feedback time domain resource relative to a HARQ-ACK feedback occasion corresponding to a first SPS PDSCH of an SPS (i.e., SPS 1) with a smaller number in the SPS configuration is K1, SPS, and the interval between two SPS HARQ-ACK feedback occasions is configured by RRC. The HARQ-ACK feedback occasion corresponding to the first SPS PDSCH is determined based on K1 specified in the active DCI. For SPS 1 and SPS 2 PDSCHs, the terminal can provide HARQ-ACK feedback for an SPS PDSCH on feedback occasion 1, which corresponds to an SPS A / N feedback resource. Implementation 6 As shown in Figure 11, a terminal is configured with two DL SPS configuration resources, SPS 1 and SPS 2. The priority for SPS 1 is 1, the priority for SPS 2 is 2, and the first feedback information is a HARQ-ACK. For SPS 1, the priority is set by the RRC; the first reference point is an active DCI receive event to activate an SPS with priority 1, and the interval (interval, i.e., a period) is set by the RRC. For SPS 2, the priority is set by the RRC; the first reference point is an active DCI receive event to activate an SPS with priority 2, and the interval is also set by the RRC. A network-side device configures SPS HARQ-ACK feedback time domain resources (first candidate time domain resources) that correspond to priority 1 and priority 2, respectively. For priority 1, an offset value of the HARQ-ACK feedback time domain resource relative to an active DCI receive occasion (first DCI) for an SPS (i.e., SPS 1) with a lower number in the SPS configuration with priority 1 is K1, SPS, priority = 1. For priority 2, an offset value of the HARQ-ACK feedback time domain resource relative to an active DCI receive occasion for an SPS (i.e., SPS 2) with a lower number in the SPS configuration with priority 2 is K1, SPS, priority = 2. An interval between two SPS HARQ-ACK feedback occasions is configured by RRC. For an SPS 1 PDSCH, the terminal feeds back the HARQ-ACK for the SPS 1 PDSCH on Feedback Occasion 1, which corresponds to an SPS A / N Feedback Resource with a priority of 1. For an SPS 2 PDSCH, the terminal feeds back the HARQ-ACK for the SPS 2 PDSCH on feedback occasion 2, which corresponds to an SPS A / N feedback resource with a priority of 2. Figure 12 is a schematic block diagram of a 1200 device for transmitting feedback information according to an example implementation of this application. The 1200 device can be a terminal, or it can be located in the terminal. Still referring to Figure 12, the 1200 device includes: a 1210 receiving module, configured to receive feedback time indication information, where the terminal is configured with at least one DL SPS configuration resource, the feedback time indication information is used to indicate at least one first candidate time-domain feedback resource, the first candidate time-domain feedback resource is a candidate time-domain resource for transmitting the first feedback information.The first feedback information is feedback information that corresponds to a downlink data channel of a first target DL SPS, and the first target DL SPS is at least one of the at least one DL SPS; a determination module 1220, configured to determine a target time domain resource based on the feedback time indication information; and a transmission module 1230, configured to transmit the first feedback information on the target time domain resource. In one or more embodiments of this request, the first target DL SPS includes at least one of the following: all DL SPSs configured for the terminal; a DL SPS with a specified priority; a DL SPS with a specified identifier; and an active DL SPS. In one or more embodiments of this request, the specified priority includes a higher priority and / or a lower priority; or the specified priority is a set of priorities, and the set of priorities includes a plurality of priorities. In one or more embodiments of this request, the specified identifier is one or more identifiers specified by the network-side device. In one or more embodiments of this application, the feedback-time indication information includes at least one of the following: a feedback-time window, wherein the feedback-time window includes at least one first candidate time-domain feedback resource; a start position of the first candidate time-domain feedback resource; a length of the first candidate time-domain feedback resource; an end position of the first candidate time-domain feedback resource; a quantity of the first candidate time-domain feedback resources; a number or set of numbers of the first candidate time-domain feedback resource; and an offset value. In one or more embodiments of this request, the offset value includes either an offset value of the first candidate time-domain feedback resource relative to a first reference point or an offset value of the feedback time window relative to the first reference point. In one or more embodiments of this request, the first reference point includes at least one of the following: a subframe boundary; a DCI receive occasion to activate a second target DL SPS; a receive occasion of a first downlink data channel of the second target DL SPS; and a feedback information return occasion corresponding to a first downlink data channel of the second target DL SPS, where the second target DL SPS is a DL SPS with a smaller or larger identifier than the first target DL SPS. In one or more embodiments of this request, the feedback time indication information additionally includes a period of the first candidate time domain feedback resource or a period of the feedback time window. In one or more embodiments of this request, the feedback time window includes at least one time unit, and each time unit includes at least one of the first candidate time-domain feedback resources, where the time unit is slot, subslot, or subframe. In one or more embodiments of this application, if the feedback time window includes a plurality of time units, and each time unit includes a plurality of first candidate time-domain feedback resources, the feedback time indication information includes a plurality of start positions or end positions, where a start position or end position corresponds to a time unit, or a start position or end position corresponds to one of the first candidate time-domain feedback resources. In one or more embodiments of this request, in a case where the feedback time window includes a plurality of candidate first time-domain feedback resources, one or more length values ​​of the candidate first time-domain feedback resources are included. In one or more embodiments of this request, determination module 1220 determining a target time domain resource based on feedback time indication information includes: determining a second candidate time domain resource for the first feedback information based on an indication of the first DCI for the first target DL SPS in a case where the feedback time indication information includes the feedback time window, where the first DCI is a DCI to trigger the first target DL SPS; and determining the second candidate time domain resource as the target time domain resource in a case where the second candidate time domain resource is within the feedback time window. In one or more embodiments of this request, determination module 1220 further includes determining a target time domain resource based on feedback time indication information: determining one of the first candidate time domain feedback resources within the feedback time window as the target time domain resource in a case where the second candidate time domain resource is not within the feedback time window. In one or more embodiments of this request, the 1210 receive module is additionally configured to receive the second DCI in an instance where no third candidate time-domain resource is indicated in the first DCI to activate the first target DL SPS, where the second DCI is used to activate feedback on a downlink data channel of the first target DL SPS. In one or more embodiments of this request, the determination module 1220 that determines a target time domain resource based on feedback time indication information further includes: determining a fourth candidate time domain resource indicated by the second DCI as the target time domain resource, or determining the first candidate time domain resource as the target time domain resource. In one or more embodiments of this application, the second DCI includes at least one of the following: DCI that includes a downlink grant with downlink data channel planning, DCI that includes a downlink grant without downlink data channel planning, DCI that includes an uplink grant with uplink data channel planning, and DCI that includes an uplink grant without uplink data channel planning. In one or more realizations of this request, the second DCI is randomized by a pre-established RNTI. In one or more embodiments of this application, the 1230 transmission module is additionally configured to skip transmitting the first feedback information on the target time domain resource in case the target time domain resource collides with a downlink transmission time domain resource. In one or more realizations of this request, the first feedback information is feedback information for some or all of the HARQ processes for the first target DL SPS. In one or more embodiments of this request, receiving module 1210 receiving feedback time indication information includes: receiving the feedback time indication information sent in one of the following ways: sending the feedback time indication information to the terminal by RRC; sending the feedback time indication information to the terminal by group common DCI; and sending the feedback time indication information to the terminal by terminal-specific DCI. The device 1200 for transmitting feedback information in this embodiment of this application may be an appliance, or it may be a component, an integrated circuit, or a chip in a terminal. The device 1200 may be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the types of terminal 11 illustrated above. The non-mobile terminal may be a server, network-attached storage (NAS), a personal computer (PC), a television (TV), an ATM, a vending machine, or the like. This is not specifically limited in the embodiments of this application. The device 1200 for transmitting feedback information in this implementation of this application can be a device with an operating system. The operating system can be an Android operating system, an iOS operating system, or another operating system. This is not specifically limited in this implementation of this application. The 1200 device for transmitting feedback information provided in this embodiment of this application can implement the processes implemented in the method embodiments in Figure 2 and Figure 3, with the same technical effects achieved. To avoid repetition, the details are not described again in this document. Optionally, Figure 13 is a schematic diagram of a hardware structure for a terminal to implement the realizations of this application. The 1300 terminal includes, but is not limited to, components such as a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and a processor 1310. Those skilled in the field may understand that the 1300 terminal can additionally include a power supply (e.g., a battery) that provides power to various components. The power supply can be logically connected to the 1310 processor via a power management system, so that functions such as charge and discharge management and power consumption management are implemented using the power management system. The terminal is not limited to the terminal structure shown in Figure 13. The terminal may include more or fewer components than those shown in the figure, or combine some of the components, or arrange the components differently. These details are not described herein. It should be understood that in this embodiment of this application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042. The graphics processing unit 13041 processes image data from a still image or video obtained by an image capture device (for example, a camera) in either video capture mode or image capture mode. The display unit 1306 may include the display panel 13061. The display panel 13061 may be configured as a liquid crystal display, an organic light-emitting diode, or similar. The user input unit 1307 includes a touch panel 13071 and other input devices 13072. The touch panel 13071 is also referred to as a touchscreen. The touch panel 13071 may include two parts: a touch-sensing device and a touch controller.Other 13072 input devices may include, but are not limited to, a physical keyboard, a function button (for example, a volume control button or a power button), a trackball, a mouse, and a joystick. Details are not described herein. In this implementation of this application, radio frequency unit 1301 sends downlink information received from a network-side device to processor 1310 for processing, and also sends uplink data to the network-side device. Generally, radio frequency unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, and a duplexer. Memory 1309 can be configured to store software programs or instructions and various data. Memory 1309 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store an operating system, an application program, or instructions required by at least one function (for example, an audio playback function or an image playback function), and similar items.In addition, the 1309 memory may include high-speed random access memory and may further include non-volatile memory, where the non-volatile memory may 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, for example, at least a disk storage device, a flash memory device, or other non-volatile solid-state storage devices. The 1310 processor may include one or more processing units. Optionally, the 1310 processor may integrate an application processor and a modem processor. The application processor primarily processes an operating system, a user interface, application programs or instructions, and the like. The modem processor primarily processes wireless communication and, for example, may be a baseband processor. It can be understood that the modem processor may alternatively not be integrated into the 1310 processor. The 1310 processor is configured to: receive feedback time indication information, where the terminal is configured with at least one DL SPS configuration resource, the feedback time indication information is used to indicate at least one first candidate time-domain feedback resource, the first candidate time-domain feedback resource is a candidate time-domain resource for transmitting the first feedback information, the first feedback information is feedback information that corresponds to a downlink data channel of a target first DL SPS, and the target first DL SPS is at least one of the at least one DL SPS; determine a target time-domain resource based on the feedback time indication information; and transmit the first feedback information on the target time-domain resource. In this embodiment, the terminal receives the feedback time indication information sent by the network-side device and determines the target time domain resource for transmitting the first feedback information based on this information. This avoids the following problem in the prior art: A feedback time (i.e., a time domain resource) for feedback information (such as a HARQ-ACK) from each DL SPS configuration is indicated in a separate active DCI, resulting in feedback information from different DL SPS configurations potentially being fed back at different feedback times. Furthermore, some feedback information (such as a HARQ-ACK for an SPS PDSCH) may be discarded, degrading the SPS PDSCH's performance. Figure 14a is a schematic block diagram of a 1400 device to indicate a feedback time according to an example implementation of this application. The 1400 device can be a network-side device, or it can be located within the network-side device.Still referring to figure 14a, the apparatus 1400 includes: a sending module 1410, configured to send feedback time indication information to a terminal, wherein the feedback time indication information is used to indicate at least one first candidate time domain feedback resource, the first candidate time domain feedback resource is a candidate time domain resource for transmitting the first feedback information, the first feedback information is feedback information that corresponds to a downlink data channel, and the downlink data channel is a data channel that corresponds to a first target DL SPS configured for the terminal. In one or more embodiments of this request, the first target DL SPS includes at least one of the following: all DL SPSs configured for the terminal; a DL SPS with a specified priority; a DL SPS with a specified identifier; and an active DL SPS. In one or more embodiments of this request, the specified priority includes a higher priority and / or a lower priority; or the specified priority is a set of priorities, and the set of priorities includes a plurality of priorities. In one or more embodiments of this request, the specified identifier is one or more identifiers specified by the network-side device. In one or more embodiments of this application, the feedback-time indication information includes at least one of the following: a feedback-time window, wherein the feedback-time window includes at least one first candidate time-domain feedback resource; a start position of the first candidate time-domain feedback resource; a length of the first candidate time-domain feedback resource; an end position of the first candidate time-domain feedback resource; a quantity of the first candidate time-domain feedback resources; a number or set of numbers of the first candidate time-domain feedback resource; and an offset value. In one or more embodiments of this request, the offset value includes either an offset value of the first candidate time-domain feedback resource relative to a first reference point or an offset value of the feedback time window relative to the first reference point.In one or more embodiments of this request, the first reference point includes at least one of the following: a subframe boundary; a DCI receive occasion to activate a second target DL SPS, where the second target DL SPS is an active DL SPS with a smaller or larger identifier; a first downlink data channel receive occasion from the second target DL SPS; and a feedback information return occasion corresponding to a first downlink data channel from the second target DL SPS, where the second target DL SPS is a DL SPS with a smaller or larger identifier than the first target DL SPS. In one or more embodiments of this request, the feedback time indication information additionally includes a period of the first candidate time domain feedback resource or a period of the feedback time window. In one or more embodiments of this request, the feedback time window includes at least one time unit, and each time unit includes at least one of the first candidate time-domain feedback resources, where the time unit is slot, subslot, or subframe. In one or more embodiments of this application, if the feedback time window includes a plurality of time units, and each time unit includes a plurality of first candidate time-domain feedback resources, the feedback time indication information includes a plurality of start positions or end positions, where a start position or end position corresponds to a time unit, or a start position or end position corresponds to one of the first candidate time-domain feedback resources. In one or more embodiments of this request, in a case where the feedback time window includes a plurality of candidate first time-domain feedback resources, one or more length values ​​of the candidate first time-domain feedback resources are included. In one or more embodiments of this request, sending module 1410 to send feedback time indication information to a terminal includes sending the feedback time indication information to the terminal in one of the following ways: sending the feedback time indication information to the terminal by resource radio control (RRC); sending the feedback time indication information to the terminal by group common DCI; and sending the feedback time indication information to the terminal by terminal-specific DCI. In one or more embodiments of this application, as shown in Figure 14b, the device 1400 further includes an activation module 1420, configured to activate feedback on a downlink data channel for the first target DL SPS by the second DCI in case no second candidate time domain resource is indicated for the first feedback information in the first DCI corresponding to the first target DL SPS, where the first DCI is the DCI for activating the first target DL SPS. In one or more embodiments of this application, the second DCI includes at least one of the following: DCI that includes a downlink grant with downlink data channel planning, DCI that includes a downlink grant without downlink data channel planning, DCI that includes an uplink grant with uplink data channel planning, and DCI that includes an uplink grant without uplink data channel planning. In one or more embodiments of this request, the second DCI is used to activate feedback on a downlink data channel of a third target DL SPS, the third target DL SPS includes the first target DL SPS, and the third target DL SPS includes any one of the following: all active DL SPSs in the terminal-configured DL SPS; an active DL SPS configured by the terminal and having a specified priority; and one or more specified active DL SPSs. In one or more embodiments of this request, the second DCI is additionally used to indicate a fourth candidate time-domain resource for transmitting the first feedback information. As shown in Figure 15, an example implementation of this application further provides a network-side device, where the network-side device 1500 includes an antenna 1501, a radio frequency apparatus 1502, and a baseband apparatus 1503. The antenna 1501 is connected to the radio frequency apparatus 1502. In an uplink direction, the radio frequency apparatus 1502 receives information using the antenna 1501 and transmits the received information to the baseband apparatus 1503 for processing. In a downlink direction, the baseband apparatus 1503 processes information to be transmitted and transmits the information to the radio frequency apparatus 1502; and the radio frequency apparatus 1502 processes the received information and then transmits the information using the antenna 1501. The frequency band processing apparatus can be located in the baseband apparatus 1503. The method carried out by the network-side device in the above embodiment can be implemented in the baseband apparatus 1503, and the baseband apparatus 1503 includes a processor 1504 and a memory 1505. The baseband apparatus 1503 may include, for example, at least one baseband processing unit, where a plurality of chips are arranged in the baseband processing unit. As shown in Figure 15, one of the chips is, for example, the processor 1504, and is connected to memory 1505, to invoke the program in memory 1505 to perform the network device operations shown in the implementation of the previous method. The 1503 baseband apparatus may additionally include a 1506 network interface, configured to exchange information with the 1502 radio frequency apparatus, where the interface is, for example, a common public radio interface (CPRI for short). Specifically, the network-side device in this embodiment of the present invention further includes instructions or a program stored in memory 1505 and capable of execution by the processor 1504. The processor 1504 invokes the instructions or program in memory 1505 to perform the method carried out by the modules shown in Figure 14a or Figure 14b, with the same technical effects achieved. To avoid repetition, the details are not described again herein. One implementation of this application further provides a readable storage medium, where the readable storage medium stores a program or instructions. When the program or instructions are executed by a processor, the processes of the previous implementations of the method for transmitting feedback information are implemented, or when the program or instructions are executed by a processor, the processes of the previous implementations of the method for indicating a feedback time are implemented, achieving the same technical effects. To avoid repetition, the details are not described again in this document. The processor is the terminal processor or the network-side device in the above embodiment. The readable storage medium includes a computer-readable storage medium such as read-only memory (ROM), random-access memory (RAM), a magnetic disk, an optical disk, or similar. An embodiment of this application further provides a chip, wherein the chip includes a processor and a communications interface, the communications interface being coupled to the processor, and the processor being configured to execute a program or instructions for a network-side device to implement the processes of the prior embodiments of the method for transmitting feedback information, or to implement the processes of the prior embodiments of the method for indicating a feedback time, with the same technical effects achieved. To avoid repetition, the details are not described again herein. It should be understood that the chip referred to in this embodiment of this application may also be referred to as a system-on-a-chip, a system chip, a system-on-a-chip, or similar. It should be noted that the terms "comprising," "including," or any of their variants in this specification are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a listed element not only includes those elements but also includes other elements not expressly listed, or includes elements inherent to that process, method, article, or apparatus. In the absence of further restrictions, an element defined by "that includes a..." does not exclude another of the same element in a process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may additionally include performing functions substantially simultaneously or in reverse order, depending on the functions involved.For example, the described method can be performed in a different order, and steps can be added, omitted, or combined. Furthermore, features described with reference to some examples can be combined in other examples. Through the preceding description of the implementations, those skilled in the field can clearly understand that the method in the above embodiments can be implemented in software with a general hardware platform. Certainly, the method in the above embodiments can also be implemented in hardware. However, in many cases, the former is a preferred implementation. Based on this understanding, the technical solutions of this application, or the portion that contributes to the above technique, can be implemented as a software product.The software product may be stored on a storage medium (e.g., ROM / RAM, magnetic disk, or optical disk) and includes several instructions to give instructions to a terminal (which may be a mobile phone, computer, server, air conditioner, network device, or similar) to perform the method described in each embodiment of this application. The embodiments of this application are described above with reference to the accompanying drawings, but this application is not limited to the above implementations. The above implementations are illustrative rather than restrictive. Drawing inspiration from this application, those skilled in the art may still derive many variations without departing from the scope of protection of the claims. All such variations will be within the protection of this application.

Claims

1. A method for transmitting feedback information, applied to a terminal, wherein the method comprises: receiving (S210) feedback time indication information, wherein the terminal is configured with at least two downlink semipersistent scheduling configuration resources, DL SPS, the feedback time indication information is used to indicate at least one first candidate time-domain feedback resource, the first candidate time-domain feedback resource is a candidate time-domain resource for transmitting first feedback information, the first feedback information is feedback information corresponding to a downlink data channel of a target first DL SPS,and the first target DL SPS is at least one of the at least two DL SPSs; determining (S220) a target time-domain resource based on feedback time-indication information; and transmitting (S230) the first feedback information on the target time-domain resource; characterized in that the feedback time-indication information comprises: an offset value,wherein the offset value comprises an offset value of the first candidate time-domain feedback resource relative to a first reference point; wherein the first reference point comprises one of the following: a DCI reception occasion to activate a second target DL SPS; a reception occasion of a first downlink data channel from the second target DL SPS; and a feedback information return occasion corresponding to a first downlink data channel from the second target DL SPS; wherein the second target DL SPS is a DL SPS with a smaller or larger identifier than the first target DL SPS.

2. The method according to claim 1,wherein the first target DL SPS comprises at least one of the following: all DL SPSs configured for the terminal; a DL SPS with a specified priority; a DL SPS with a specified identifier; and an active DL SPS.

3. The method according to claim 2, wherein the specified priority comprises a higher priority and / or a lower priority; or the specified priority is a set of priorities, and the set of priorities comprises a plurality of priorities.

4. The method according to claim 2, wherein the feedback time indication information further comprises at least one of the following: a feedback time window,wherein the feedback time window comprises at least one first candidate time-domain feedback resource; a start position of the first candidate time-domain feedback resource; a length of the first candidate time-domain feedback resource; an end position of the first candidate time-domain feedback resource; a quantity of the first candidate time-domain feedback resources; and a number or set of numbers of the first candidate time-domain feedback resource.

5. The method according to claim 4, wherein the feedback time window comprises at least one time unit, and each time unit comprises at least one of the first candidate time-domain feedback resources, wherein the time unit is a slot, subslot, or subframe.

6. The method according to any one of claims 1 to 5,wherein the method further comprises: omitting the transmission of the first feedback information in the target time-domain resource in a case where the target time-domain resource collides with a time-domain resource for downlink transmission.

7. The method according to any one of claims 1 to 5, wherein the first feedback information is feedback information for some or all of the HARQ processes for the first target DL SPS.

8. The method according to any one of claims 1 to 5,wherein receiving feedback time indication information comprises receiving feedback time indication information sent in one of the following ways: sending the feedback time indication information to the terminal by the Radio Resource Control (RRC); sending the feedback time indication information to the terminal by a common group DCI; and sending the feedback time indication information to the terminal by a terminal-specific DCI.

9. An apparatus (1200) for transmitting feedback information, applied to a terminal, wherein the apparatus comprises: a receiving module (1210), configured to receive feedback time indication information, wherein the terminal is configured with at least two DL SPS configuration resources,The feedback time indication information is used to indicate at least one candidate first time-domain feedback resource, the candidate first time-domain feedback resource is a candidate time-domain resource for transmitting first feedback information, the first feedback information is feedback information corresponding to a downlink data channel of a target first DL SPS, and the target first DL SPS is at least one of at least two DL SPSs; a determination module (1220), configured to determine a target time-domain resource based on the feedback time indication information; and a transmission module (1230),configured to transmit the first feedback information in the target time-domain resource; characterized in that the feedback time indication information comprises: an offset value,wherein the offset value comprises an offset value of the first candidate time-domain feedback resource relative to a first reference point; wherein the first reference point comprises one of the following: a DCI reception occasion to activate a second target DL SPS; a reception occasion of a first downlink data channel from the second target DL SPS; and a feedback information return occasion corresponding to a first downlink data channel from the second target DL SPS; wherein the second target DL SPS is a DL SPS with a smaller or larger identifier than the first target DL SPS.

10. The apparatus according to claim 9,wherein the first target DL SPS comprises at least one of the following: all DL SPSs configured for the terminal; a DL SPS with a specified priority; a DL SPS with a specified identifier; and an active DL SPS.

11. The apparatus according to claim 10, wherein the specified priority comprises a higher priority and / or a lower priority; or the specified priority is a set of priorities, and the set of priorities comprises a plurality of priorities.

12. The apparatus according to claim 9, wherein the feedback time indication information further comprises at least one of the following: a feedback time window,wherein the feedback time window comprises at least one first candidate time-domain feedback resource; a start position of the first candidate time-domain feedback resource; a length of the first candidate time-domain feedback resource; an end position of the first candidate time-domain feedback resource; a quantity of the first candidate time-domain feedback resources; and a number or set of numbers of the first candidate time-domain feedback resource; wherein the feedback time window comprises at least one time unit, and each time unit comprises at least one of the first candidate time-domain feedback resources, wherein the time unit is a slot, subslot, or subframe.

13. The apparatus according to any one of claims 9 to 12,wherein the transmission module (1230) is further configured to omit the transmission of the first feedback information in the target time-domain resource in a case where the target time-domain resource collides with a downlink transmission time-domain resource.

14. The apparatus according to any one of claims 9 to 12, wherein the first feedback information is feedback information for some or all of the HARQ processes for the first target DL SPS.

15. The apparatus according to any one of claims 9 to 12,wherein the receiving module (1210) receiving feedback time indication information comprises receiving feedback time indication information sent in one of the following ways: sending feedback time indication information to the terminal by RRC; sending feedback time indication information to the terminal by group common DCI; and sending feedback time indication information to the terminal by terminal-specific DCI.

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