Candidate pdsch reception occasion determination method, apparatus, and related device

Abstract

The application provides a candidate PDSCH receiving opportunity determination method and device and related equipment, wherein the method comprises: determining a target time domain resource, the target time domain resource being related to at least one of the following time domain resources: a first time domain resource of a terminal indicated by a network side device; a second time domain resource of multicast service sent by the network side device; a third time domain resource of broadcast service sent by the network side device; a fourth time domain resource corresponding to a non-configured subcarrier spacing; and determining a candidate PDSCH receiving opportunity corresponding to hybrid automatic repeat request acknowledgement (HARQ-ACK) information based on the determined target time domain resource. Based on the target time domain resource, the number of candidate PDSCH receiving opportunities corresponding to the determined HARQ-ACK information is reduced, thereby reducing the number of bits for codebook feedback, saving network resources, and reducing the energy consumption of the network side device and the terminal device in the interaction process.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method, apparatus and related equipment for determining the timing of receiving a candidate PDSCH. Background Technology

[0002] In 5G NR, the codebook length of the semi-static Hybrid Automatic Repeat Request (HARQ) codebook needs to be determined based on the number of candidate reception opportunities for the Physical Downlink Shared Channel (PDSCH).

[0003] In related technologies, the number of candidate reception opportunities for the Physical Downlink Shared Channel (PDSCH) depends on the number of all downlink time slots configured on the network side. The number of bits in the semi-static HARQ codebook also depends on the number of candidate reception opportunities for the PDSCH. The semi-static HARQ codebook has a large resource overhead, which results in high energy consumption and signaling overhead for network-side devices and terminal devices during the interaction process. Summary of the Invention

[0004] This application provides a method, apparatus, and related equipment for determining the timing of candidate PDSCH reception, in order to solve the problem of high energy consumption during the interaction between network-side equipment and terminal equipment.

[0005] To solve the above problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a method for determining the timing of receiving a candidate PDSCH, executed by a terminal, the method comprising:

[0007] Determine the target time-domain resource, which is associated with at least one of the following time-domain resources:

[0008] The network-side device indicates the terminal's first time-domain resources;

[0009] The network-side equipment sends the second time-domain resource for multicast services;

[0010] The third time-domain resource for network-side devices to transmit broadcast services;

[0011] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing;

[0012] Based on the determined target time domain resources, determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information of the Hybrid Automatic Repeat Request Response.

[0013] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0014] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0015] The first set of candidate PDSCH reception opportunities is determined based on the set of row indices of PDSCH time-domain resource allocation.

[0016] From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, resulting in a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0017] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0018] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the remaining row indices of PDSCH time-domain resource allocation.

[0019] Based on the row index of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information.

[0020] Optionally, determining the target time-domain resource includes:

[0021] Receive a first message sent by a network-side device, the first message including first indication information of the target time-domain resource;

[0022] The target time-domain resource is determined based on the first indication information.

[0023] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0024] If the first time interval is less than the first time threshold and / or the second time interval is less than the second time threshold, the candidate PDSCH reception timing corresponding to the HARQ-ACK information is determined according to the set of row indices of the PDSCH time domain resource allocation.

[0025] Wherein, the first time interval is: the time interval between the first time slot in which the terminal receives the first message and the time slot in which the terminal is currently feeding back the HARQ codebook; the second time interval is: the time interval between the second time slot corresponding to the target time domain resource and the time slot in which the terminal is currently feeding back the HARQ codebook.

[0026] Optionally, the method further includes:

[0027] If the first time interval is greater than or equal to the first time threshold, and the second time interval is greater than or equal to the second time threshold:

[0028] Based on the set of row indices of PDSCH time domain resource allocation, a first set of candidate PDSCH reception opportunities is determined. From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, and a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information is obtained.

[0029] or,

[0030] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the row indices of the remaining PDSCH time-domain resource allocation. Based on the row indices of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0031] Optionally, the first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0032] Optionally, after determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources, the method further includes:

[0033] Construct the HARQ information bits based on the candidate PDSCH reception timing corresponding to the HARQ-ACK information.

[0034] Optionally, the first time-domain resource includes at least one of the following:

[0035] Time-domain resources not used for downlink reception;

[0036] Time-domain resources used for uplink transmission;

[0037] Time-domain resources used for hibernation;

[0038] The time-domain resources corresponding to the preset subcarrier interval.

[0039] Secondly, embodiments of this application provide a method for determining the timing of candidate PDSCH reception, executed by a network-side device, the method comprising:

[0040] Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource.

[0041] The target time-domain resource is associated with at least one of the following time-domain resources:

[0042] The network-side device indicates the terminal's first time-domain resources;

[0043] The network-side equipment sends the second time-domain resource for multicast services;

[0044] The third time-domain resource for network-side devices to transmit broadcast services;

[0045] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing.

[0046] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0047] Optionally, the first time-domain resource includes at least one of the following:

[0048] Time-domain resources not used for downlink reception;

[0049] Time-domain resources used for uplink transmission;

[0050] Time-domain resources used for hibernation;

[0051] The time-domain resources corresponding to the preset subcarrier interval.

[0052] Optionally, the first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0053] Thirdly, embodiments of this application also provide a candidate PDSCH reception timing determination apparatus, comprising:

[0054] The first processor is used for:

[0055] Determine the target time-domain resource, which is associated with at least one of the following time-domain resources:

[0056] The network-side device indicates the terminal's first time-domain resources;

[0057] The network-side equipment sends the second time-domain resource for multicast services;

[0058] The third time-domain resource for network-side devices to transmit broadcast services;

[0059] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing;

[0060] Based on the determined target time domain resources, determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information of the Hybrid Automatic Repeat Request Response.

[0061] Fourthly, embodiments of this application also provide a candidate PDSCH reception timing determination apparatus, comprising:

[0062] The second transceiver is used for:

[0063] Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource.

[0064] The target time-domain resource is associated with at least one of the following time-domain resources:

[0065] The network-side device indicates the terminal's first time-domain resources;

[0066] The network-side equipment sends the second time-domain resource for multicast services;

[0067] The third time-domain resource for network-side devices to transmit broadcast services;

[0068] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing.

[0069] Fifthly, embodiments of this application also provide a communication device, including: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that the processor is configured to read the program in the memory to implement the steps in the method described in the first aspect above; or, the steps in the method described in the second aspect above.

[0070] In a sixth aspect, embodiments of this application also provide a readable storage medium for storing a program, which, when executed by a processor, implements the steps of the method described in the first aspect above, or implements the steps of the method described in the second aspect above.

[0071] In this embodiment of the application, based on the target time domain resources, the number of candidate PDSCH reception opportunities corresponding to the determined Hybrid Automatic Repeat Request Response (HARQ-ACK) information is reduced, thereby reducing the number of bits used for codebook feedback, saving network resources, and reducing the energy consumption and signaling overhead of network-side devices and terminal devices during the interaction process. Attached Figure Description

[0072] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0073] Figure 1 This is a schematic diagram of the structure of a network system to which the embodiments of this application can be applied;

[0074] Figure 2 This is a flowchart illustrating a method for determining the timing of receiving a candidate PDSCH according to an embodiment of this application.

[0075] Figure 3 This is a flowchart illustrating another method for determining the receiving timing of a candidate PDSCH provided in an embodiment of this application;

[0076] Figure 4 This is a schematic diagram of a candidate PDSCH reception timing determination device provided in an embodiment of this application;

[0077] Figure 5 This is a schematic diagram of another candidate PDSCH reception timing determination device provided in the embodiments of this application;

[0078] Figure 6 This is a schematic diagram of the communication equipment provided in this application. Detailed Implementation

[0079] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0080] The terms "first," "second," etc., used in the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Additionally, the use of "and / or" in this application indicates at least one of the connected objects, such as A and / or B and / or C, representing seven possibilities: including A alone, B alone, C alone, and the presence of both A and B, both B and C, both A and C, and the presence of A, B, and C.

[0081] Please see Figure 1 , Figure 1 This is a structural diagram of a network system to which the embodiments of this application can be applied, such as... Figure 1 As shown, it includes a data transmitting device 11 and a data receiving device 12.

[0082] The data transmitting device 11 and the data receiving device 12 can communicate with each other. The data transmitting device 11 sends ciphertext information (Ciphertext Block) to the data receiving device 12.

[0083] In practical applications, the data transmitting device 11 can be a terminal (also known as a user equipment (UE)) and the data receiving device 12 can be a network-side device; or, the data transmitting device 11 can be a network-side device and the data receiving device 12 can be a terminal, but it is not limited to these.

[0084] The terminal can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), wearable device, or vehicle-mounted device, etc. Network-side equipment can be base stations, access and mobility management functions (AMF), trunk lines, access points, or other network elements, etc.

[0085] The following describes the method for determining the timing of receiving candidate PDSCHs provided in the embodiments of this application.

[0086] See Figure 2 , Figure 2This is a flowchart illustrating a method for determining the timing of receiving a candidate PDSCH, as provided in an embodiment of this application. Figure 2 The method for determining the timing of candidate PDSCH reception shown can be executed by the terminal.

[0087] like Figure 2 As shown, the method for determining the timing of candidate PDSCH reception may include the following steps:

[0088] Step 201: Determine the target time domain resources.

[0089] The target time-domain resource is associated with at least one of the following time-domain resources:

[0090] The network-side device indicates the terminal's first time-domain resources;

[0091] The network-side equipment sends the second time-domain resource for multicast services;

[0092] The third time-domain resource for network-side devices to transmit broadcast services;

[0093] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing.

[0094] It should be noted that the network-side device instructing the terminal can be understood as the network-side device notifying the terminal when it is preparing to hibernate. Considering its own energy-saving needs, the network side can hibernate to save energy. For the hibernation time slot of the network-side device, since the network side does not perform any data service scheduling, the network-side device does not need the terminal to feed back the Hybrid Automatic Repeat reQuest (HARQ) codebook. This can save energy consumption for both the terminal to send HARQ information and the network side to receive HARQ information. When the network-side device is preparing to hibernate, the network will send the hibernation time and time domain pattern (which can be understood as the aforementioned first time domain resource) to the terminal.

[0095] Furthermore, unconfigured subcarrier spacing should be understood as subcarrier spacing different from the subcarrier spacing configured or defaulted by the network-side equipment. When the target time-domain resources include fourth-time-domain resources corresponding to unconfigured subcarrier spacing, the terminal can first obtain the subcarrier spacing configured or defaulted by the network-side equipment, and then identify the unconfigured subcarrier spacing and its corresponding fourth-time-domain resources based on the configured or default subcarrier spacing. For service channels that only support one subcarrier spacing, if the network side transmits the terminal's unconfigured subcarrier spacing for a portion of the time (i.e., the fourth-time-domain resources), the terminal cannot receive service data and does not need to perform HARQ feedback.

[0096] For terminals that do not support multicast and / or broadcast services, the network transmits multicast or broadcast services on the second or third time domain resources. These terminals do not need to receive multicast and / or broadcast service data, nor do they need to perform HARQ feedback.

[0097] Step 202: Based on the determined target time domain resources, determine the timing of receiving candidate (Physical Downlink Shared Channel, PDSCH) messages corresponding to the Hybrid Automatic Repeat reQuest acknowledgement (HARQ-ACK) messages.

[0098] It should be noted that the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information can be used to construct a semi-static codebook.

[0099] In some implementations, if the target time domain resources include fourth time domain resources corresponding to unconfigured subcarrier intervals, the terminal can also directly exclude PDSCH time domain resources whose corresponding subcarrier intervals are different from those configured or defaulted by the network-side equipment, based on the subcarrier intervals configured or defaulted by the network-side equipment.

[0100] For network-side sleep time slots (first time domain resources), since the network side does not perform any data service scheduling, the network-side devices do not need to feed back the hybrid HARQ codebook from the terminal. This can save energy consumption for both the terminal side to send HARQ information and the network side to receive HARQ information.

[0101] For some terminals that only support one type of subcarrier interval for their service channels, if the network transmits the terminal's unconfigured subcarrier interval for a portion of the time (i.e., the fourth time domain resource), the terminal will be unable to receive service data and will not need to perform HARQ feedback.

[0102] For terminals that do not support multicast and / or broadcast services, the network transmits multicast or broadcast services on the second or third time domain resources. These terminals do not need to receive multicast and / or broadcast service data, nor do they need to perform HARQ feedback.

[0103] As described above, based on the target time domain resources, the number of candidate PDSCH reception opportunities corresponding to the determined HARQ-ACK information is reduced, thereby reducing the number of bits used for codebook feedback, saving network resources, and reducing the energy consumption and signaling overhead of network-side devices and terminal devices during the interaction process.

[0104] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0105] As described above, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information can adaptively eliminate other time-domain resources in addition to eliminating time-domain resources related to the target time-domain resource. These other time-domain resources are different from the target time-domain resource. In the application, the other time-domain resources to be eliminated can be determined according to actual needs. This application embodiment does not limit this.

[0106] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0107] The first set of candidate PDSCH reception opportunities is determined based on the set of row indices of PDSCH time-domain resource allocation.

[0108] From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, resulting in a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0109] The set of row indices for the PDSCH time-domain resource allocation is a PDSCH time-domain resource table (hereinafter referred to as the first PDSCH table) pre-configured by the network-side device for the terminal or pre-defined by the protocol or pre-configured by the terminal. The first PDSCH table includes at least two rows of PDSCH time-domain resources, and each row of PDSCH time-domain resources corresponds to a row index. The first set can be obtained by calculating the candidate PDSCH reception timing for each row of PDSCH time-domain resources.

[0110] It should be noted that before calculating the candidate PDSCH reception timing for each row of PDSCH time domain resources, the terminal will also remove the PDSCH time domain resources used for uplink transmission (UpLink, UL) from the first PDSCH table according to the K1 value of each row of PDSCH time domain resources to obtain the second PDSCH table (i.e., the PDSCH time domain resource table after removing the UL time slot). Subsequently, the second PDSCH table is traversed and the candidate PDSCH reception timing for each row of PDSCH time domain resources in the second PDSCH table is calculated.

[0111] After obtaining the first set, the terminal can obtain the second set for codebook feedback by excluding candidate PDSCH reception opportunities that overlap with the target time domain resources in the first set.

[0112] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0113] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the remaining row indices of PDSCH time-domain resource allocation.

[0114] Based on the row index of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information.

[0115] As described above, in order to determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information, the row index of the PDSCH time domain resource allocation that overlaps with the target time domain resource can be excluded from the first PDSCH table to obtain the third PDSCH table (corresponding to the row index of the remaining PDSCH time domain resource allocation). Then, the candidate PDSCH reception timing of each row of PDSCH time domain resources in the third PDSCH table is calculated to obtain the third set for codebook feedback.

[0116] It should be noted that when excluding the row index of the PDSCH time domain resource allocation that overlaps with the target time domain resource in the first PDSCH table, the row index of the PDSCH time domain resource allocation corresponding to the UL time slot can also be removed. In this case, any row of PDSCH time domain resources in the third PDSCH table will neither overlap with the target time domain resource nor correspond to the UL time slot.

[0117] It is important to emphasize that the second set and the third set are the same set. It is preferable to use the acquisition method of the third set (i.e., first exclude the row index of PDSCH time domain resource allocation that overlaps with the target time domain resource from the first PDSCH table, and then determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information according to the row index of PDSCH time domain resource allocation that does not overlap with the target time domain resource) to determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information. Since the terminal will not receive any service data at these times, this implementation method can reduce the overhead of candidate PDSCH reception timing of PDSCH time domain resources and the overhead of HARQ codebook, and further reduce the power consumption and signaling overhead of terminal and network side equipment.

[0118] Optionally, determining the target time-domain resource includes:

[0119] Receive a first message sent by a network-side device, the first message including first indication information of the target time-domain resource;

[0120] The target time-domain resource is determined based on the first indication information.

[0121] As described above, when the network-side device does not require the terminal to feed back the HARQ codebook, it will generate a first message carrying the first indication information. By sending this first message, the terminal will exclude the part that overlaps with the target time domain resources when feeding back the HARQ codebook, thereby reducing the number of bits fed back by the terminal codebook and saving network resources.

[0122] Optionally, based on the determined target time-domain resources, the timing for receiving candidate PDSCH corresponding to the HARQ-ACK information is determined, including:

[0123] If the first time interval is less than the first time threshold and / or the second time interval is less than the second time threshold, the candidate PDSCH reception timing corresponding to the HARQ-ACK information is determined according to the set of row indices of the PDSCH time domain resource allocation.

[0124] Wherein, the first time interval is: the time interval between the first time slot in which the terminal receives the first message and the time slot in which the terminal is currently feeding back the HARQ codebook; the second time interval is: the time interval between the second time slot corresponding to the target time domain resource and the time slot in which the terminal is currently feeding back the HARQ codebook.

[0125] As described above, by configuring a first time threshold and a second time threshold, the decoding operation (used to determine the target time domain resource) and / or the exclusion operation (used to exclude PDSCH time domain resources that overlap with the target time domain resource) are prevented from taking too long, ensuring that the terminal's current HARQ codebook feedback operation can be completed smoothly within the predetermined time slot.

[0126] If the first time interval is less than the first time threshold, it indicates that the terminal does not have enough time to decode the first indication information in the first message during the current HARQ codebook operation. Therefore, during the current HARQ codebook operation, the terminal will skip the step of excluding the physical downlink shared channel (PDSCH) time domain resources that overlap with the target time domain resources, and directly determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information according to the first PDSCH table.

[0127] If the second time interval is less than the second time threshold, it indicates that the terminal does not have enough time to exclude PDSCH time domain resources that overlap with the target time domain resources in the current HARQ codebook operation. Therefore, in the current HARQ codebook feedback operation, the terminal will also skip the step of excluding physical downlink shared channel PDSCH time domain resources that overlap with the target time domain resources, and directly determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information according to the first PDSCH table.

[0128] The first time slot is earlier than the second time slot, and the second time slot is earlier than the terminal's current HARQ codebook feedback time slot.

[0129] It should be noted that in the next HARQ codebook feedback operation, the terminal can determine a first set of candidate PDSCH reception opportunities based on the set of row indices of PDSCH time-domain resource allocation, exclude candidate PDSCH reception opportunities that overlap with the target time-domain resources from the first set, and obtain a second set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information; alternatively, it can exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resources from the set of row indices of PDSCH time-domain resource allocation, obtain the row indices of the remaining PDSCH time-domain resource allocation, and determine a third set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information based on the row indices of the remaining PDSCH time-domain resource allocation.

[0130] The next HARQ codebook feedback operation can be understood as the HARQ codebook feedback operation performed by the terminal after the current HARQ codebook feedback operation is completed and before the terminal receives the first message carrying the first indication information again sent by the network-side device. The HARQ codebook feedback operation can be once, or it can be twice or more.

[0131] Optionally, the method further includes:

[0132] If the first time interval is greater than or equal to the first time threshold, and the second time interval is greater than or equal to the second time threshold:

[0133] Based on the set of row indices of PDSCH time domain resource allocation, a first set of candidate PDSCH reception opportunities is determined. From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, and a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information is obtained.

[0134] or,

[0135] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the row indices of the remaining PDSCH time-domain resource allocation. Based on the row indices of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0136] As described above, when there is sufficient time to decode the first indication information in the first message (meaning the first time interval is greater than or equal to the first time threshold) and sufficient time to exclude PDSCH time domain resources that overlap with the target time domain resources, the terminal can reduce the number of candidate PDSCH reception opportunities corresponding to the determined HARQ-ACK information by excluding PDSCH time domain resources that overlap with the target time domain resources, thereby reducing the number of bits used for codebook feedback and achieving the purpose of saving network resources.

[0137] Optionally, the first message may include at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0138] As mentioned above, by setting the first message to be at least one of system message, higher-layer signaling, and DCI, the message delivery requirements in complex scenarios can be adapted to ensure that network-side devices can successfully complete the delivery of the first message.

[0139] Optionally, the first time-domain resource includes at least one of the following:

[0140] Time-domain resources not used for downlink reception;

[0141] Time-domain resources used for uplink transmission;

[0142] Time-domain resources used for hibernation.

[0143] Optionally, after determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources, the method further includes:

[0144] Construct the HARQ information bits based on the candidate PDSCH reception timing corresponding to the HARQ-ACK information.

[0145] As described above, after obtaining the candidate PDSCH reception timing corresponding to the HARQ-ACK information, the HARQ information bits are constructed to complete the message feedback to the network-side device.

[0146] See Figure 3 , Figure 3 This is a flowchart illustrating another method for determining the timing of receiving a candidate PDSCH provided in an embodiment of this application. Figure 3 The method for determining the timing of candidate PDSCH reception shown can be executed by network-side devices.

[0147] like Figure 3 As shown, the method for determining the timing of candidate PDSCH reception may include the following steps:

[0148] Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource.

[0149] The target time-domain resource is associated with at least one of the following time-domain resources:

[0150] The network-side device indicates the terminal's first time-domain resources;

[0151] The network-side equipment sends the second time-domain resource for multicast services;

[0152] The third time-domain resource for network-side devices to transmit broadcast services;

[0153] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing.

[0154] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0155] Optionally, the first time-domain resource includes at least one of the following:

[0156] Time-domain resources not used for downlink reception;

[0157] Time-domain resources used for uplink transmission;

[0158] Time-domain resources used for hibernation.

[0159] Optionally, the first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0160] It should be noted that this embodiment is as a comparison with... Figure 2 The implementation methods of the network-side devices corresponding to the above method embodiments are similar; therefore, the relevant descriptions in the above method embodiments can be referred to, and the same beneficial effects can be achieved. To avoid repetition, further details will not be provided here.

[0161] See Figure 4 , Figure 4 This is a schematic diagram of a candidate PDSCH reception timing determination device 400 provided in an embodiment of this application. Figure 4 As shown, the candidate PDSCH reception timing determination device 400 includes:

[0162] The first processor 401 is used for:

[0163] Determine the target time-domain resource, which is associated with at least one of the following time-domain resources:

[0164] The network-side device indicates the terminal's first time-domain resources;

[0165] The network-side equipment sends the second time-domain resource for multicast services;

[0166] The third time-domain resource for network-side devices to transmit broadcast services;

[0167] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing;

[0168] Based on the determined target time domain resources, determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information of the Hybrid Automatic Repeat Request Response.

[0169] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0170] Optionally, the first processor 401 is specifically used for:

[0171] The first set of candidate PDSCH reception opportunities is determined based on the set of row indices of PDSCH time-domain resource allocation.

[0172] From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, resulting in a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0173] Optionally, the first processor 401 is specifically used for:

[0174] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the remaining row indices of PDSCH time-domain resource allocation.

[0175] Based on the row index of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information.

[0176] Optionally, the candidate PDSCH reception timing determination device 400 further includes:

[0177] The first transceiver is used for:

[0178] The device receives a first message sent by a network-side device, the first message including first indication information of the target time-domain resource.

[0179] The first processor 401 is further configured to:

[0180] The target time-domain resource is determined based on the first indication information.

[0181] Optionally, the first processor 401 is specifically used for:

[0182] If the first time interval is less than the first time threshold and / or the second time interval is less than the second time threshold, the candidate PDSCH reception timing corresponding to the HARQ-ACK information is determined according to the set of row indices of the PDSCH time domain resource allocation.

[0183] Wherein, the first time interval is: the time interval between the first time slot in which the terminal receives the first message and the time slot in which the terminal is currently feeding back the HARQ codebook; the second time interval is: the time interval between the second time slot corresponding to the target time domain resource and the time slot in which the terminal is currently feeding back the HARQ codebook.

[0184] Optionally, the first processor 401 is specifically used for:

[0185] If the first time interval is greater than or equal to the first time threshold, and the second time interval is greater than or equal to the second time threshold:

[0186] Based on the set of row indices of PDSCH time domain resource allocation, a first set of candidate PDSCH reception opportunities is determined. From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, and a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information is obtained.

[0187] or,

[0188] From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the row indices of the remaining PDSCH time-domain resource allocation. Based on the row indices of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

[0189] Optionally, the first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0190] Optionally, the first processor 401 is further configured to:

[0191] Construct the HARQ information bits based on the candidate PDSCH reception timing corresponding to the HARQ-ACK information.

[0192] Optionally, the first time-domain resource includes at least one of the following:

[0193] Time-domain resources not used for downlink reception;

[0194] Time-domain resources used for uplink transmission;

[0195] Time-domain resources used for hibernation.

[0196] The candidate PDSCH reception timing determination device 400 can realize the embodiment of this application. Figure 2 The various processes in the method embodiments, and the ways to achieve the same beneficial effects, will not be repeated here to avoid repetition.

[0197] See Figure 5 , Figure 5 This is a schematic diagram of another candidate PDSCH reception timing determination device 500 provided in an embodiment of this application. Figure 5 As shown, the candidate PDSCH reception timing determination device 500 includes:

[0198] The second transceiver 501 is used for:

[0199] Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource.

[0200] The target time-domain resource is associated with at least one of the following time-domain resources:

[0201] The network-side device indicates the terminal's first time-domain resources;

[0202] The network-side equipment sends the second time-domain resource for multicast services;

[0203] The third time-domain resource for network-side devices to transmit broadcast services;

[0204] The fourth time-domain resource corresponding to the unconfigured subcarrier spacing.

[0205] Optionally, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

[0206] Optionally, the first time-domain resource includes at least one of the following:

[0207] Time-domain resources not used for downlink reception;

[0208] Time-domain resources used for uplink transmission;

[0209] Time-domain resources used for hibernation.

[0210] Optionally, the first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

[0211] The candidate PDSCH reception timing determination device 500 can realize the embodiments of this application. Figure 3 The various processes in the method embodiments, and the ways to achieve the same beneficial effects, will not be repeated here to avoid repetition.

[0212] This application also provides a communication device. Please refer to [link to relevant documentation]. Figure 6 The communication device may include a processor 601, a memory 602, and a program 6021 stored in the memory 602 and capable of running on the processor 601.

[0213] When the communication device is a terminal, program 6021 can be executed by processor 601 to achieve the following: Figure 2 Any steps in the corresponding method embodiments and the achievement of the same beneficial effects will not be repeated here.

[0214] When the communication device is a network-side device, program 6021 can be executed by processor 601 to achieve the following: Figure 3 Any steps in the corresponding method embodiments and the achievement of the same beneficial effects will not be repeated here.

[0215] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by hardware related to program instructions, and the program can be stored in a readable medium. This application also provides a readable storage medium storing a computer program, which, when executed by a processor, can implement the above-described methods. Figure 2 or Figure 3 Any step in the corresponding method embodiment can achieve the same technical effect, and will not be repeated here to avoid repetition.

[0216] The storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0217] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0218] The above description represents the preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for determining the timing of candidate PDSCH reception, characterized in that, The method includes: Determine the target time-domain resource, which is associated with at least one of the following time-domain resources: The network-side device indicates the terminal's first time-domain resources; The network-side equipment sends the second time-domain resource for multicast services; The third time-domain resource for network-side devices to transmit broadcast services; The fourth time-domain resource corresponding to the unconfigured subcarrier spacing; Based on the determined target time domain resources, determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information of the Hybrid Automatic Repeat Request Response (HARQ-ACK). Specifically, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

2. The method according to claim 1, characterized in that, The step of determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources includes: The first set of candidate PDSCH reception opportunities is determined based on the set of row indices of PDSCH time-domain resource allocation. From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, resulting in a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

3. The method according to claim 1, characterized in that, The step of determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources includes: From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the remaining row indices of PDSCH time-domain resource allocation. Based on the row index of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to the HARQ-ACK information.

4. The method according to claim 1, characterized in that, The determination of the target time-domain resource includes: Receive a first message sent by a network-side device, the first message including first indication information of the target time-domain resource; The target time-domain resource is determined based on the first indication information.

5. The method according to claim 4, characterized in that, The step of determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources includes: If the first time interval is less than the first time threshold and / or the second time interval is less than the second time threshold, the candidate PDSCH reception timing corresponding to the HARQ-ACK information is determined based on the set of row indices allocated for PDSCH time domain resources. Wherein, the first time interval is: the time interval between the first time slot in which the terminal receives the first message and the time slot in which the terminal provides feedback to the current HARQ codebook; the second time interval is: the time interval between the second time slot corresponding to the target time domain resource and the time slot in which the terminal provides feedback to the current HARQ codebook; the first time threshold is used to determine whether the terminal has sufficient time to decode the first indication information in the first message during the current HARQ codebook operation, and the second time threshold is used to determine whether the terminal has sufficient time to exclude PDSCH time domain resources that overlap with the target time domain resource.

6. The method according to claim 5, characterized in that, The method further includes: If the first time interval is greater than or equal to the first time threshold, and the second time interval is greater than or equal to the second time threshold: Based on the set of row indices of PDSCH time domain resource allocation, a first set of candidate PDSCH reception opportunities is determined. From the first set, candidate PDSCH reception opportunities that overlap with the target time domain resources are excluded, and a second set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information is obtained. or, From the set of row indices of PDSCH time-domain resource allocation, exclude the row indices of PDSCH time-domain resource allocation that overlap with the target time-domain resource to obtain the row indices of the remaining PDSCH time-domain resource allocation. Based on the row indices of the remaining PDSCH time-domain resource allocation, determine the third set of candidate PDSCH reception opportunities corresponding to HARQ-ACK information.

7. The method according to claim 4, characterized in that, The first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

8. The method according to claim 1, characterized in that, After determining the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time-domain resources, the method further includes: Construct the HARQ information bits based on the candidate PDSCH reception timing corresponding to the HARQ-ACK information.

9. The method according to claim 1, characterized in that, The first time-domain resource includes at least one of the following: Time-domain resources not used for downlink reception; Time-domain resources used for uplink transmission; Time-domain resources used for hibernation.

10. A method for determining the timing of candidate PDSCH reception, characterized in that, The method includes: Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource. The target time-domain resource is associated with at least one of the following time-domain resources: The network-side device indicates the terminal's first time-domain resources; The network-side equipment sends the second time-domain resource for multicast services; The third time-domain resource for network-side devices to transmit broadcast services; The fourth time-domain resource corresponding to the unconfigured subcarrier spacing; Specifically, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

11. The method according to claim 10, characterized in that, The first time-domain resource includes at least one of the following: Time-domain resources not used for downlink reception; Time-domain resources used for uplink transmission; Time-domain resources used for hibernation.

12. The method according to claim 10, characterized in that, The first message includes at least one of system messages, higher-layer signaling, and downlink control information (DCI).

13. A device for determining the timing of receiving a candidate PDSCH, characterized in that, include: The first processor is used for: Determine the target time-domain resource, which is associated with at least one of the following time-domain resources: The network-side device indicates the terminal's first time-domain resources; The network-side equipment sends the second time-domain resource for multicast services; The third time-domain resource for network-side devices to transmit broadcast services; The fourth time-domain resource corresponding to the unconfigured subcarrier spacing; Based on the determined target time domain resources, determine the candidate PDSCH reception timing corresponding to the HARQ-ACK information of the Hybrid Automatic Repeat Request Response (HARQ-ACK). Specifically, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

14. A device for determining the timing of receiving a candidate PDSCH, characterized in that, include: The second transceiver is used for: Send a first message to the terminal so that the terminal determines the target time domain resource according to the first message, and determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the determined target time domain resource. The target time-domain resource is associated with at least one of the following time-domain resources: The network-side device indicates the terminal's first time-domain resources; The network-side equipment sends the second time-domain resource for multicast services; The third time-domain resource for network-side devices to transmit broadcast services; The fourth time-domain resource corresponding to the unconfigured subcarrier spacing; Specifically, the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information does not include time-domain resources related to the target time-domain resource.

15. A communication device, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that the processor is configured to read the program in the memory to implement the steps in the candidate PDSCH reception timing determination method as described in any one of claims 1 to 9; or, the steps in the candidate PDSCH reception timing determination method as described in any one of claims 10 to 12.

16. A readable storage medium for storing a program, characterized in that, When the program is executed by the processor, it implements the steps in the candidate PDSCH reception timing determination method as described in any one of claims 1 to 9; Alternatively, the steps in the candidate PDSCH reception timing determination method as described in any one of claims 10 to 12.

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