Method, apparatus and correlation device for determining candidate PDSCH reception timing

Abstract

The present disclosure discloses a method, an apparatus and a correlation device for determining a candidate PDSCH receiving timing, where the method includes: determining a target time domain resource; and determining a candidate PDSCH receiving timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource, where the target time domain resource is related to at least one of a first time domain resource indicated by a network side device to a terminal, a second time domain resource to which the network side device transmits a multicast service, a third time domain resource to which the network side device transmits a broadcast service, and a fourth time domain resource corresponding to a non-configured subcarrier interval.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This disclosure claims priority to a Chinese patent application with application number 202210561861.1, filed in China on May 23, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of communication technology, and in particular to a method, apparatus and correlation device for determining candidate PDSCH reception timing. [Background technology]

[0003] The 5th generation mobile communications th In 5G (5G New Radio) NR, a quasi-static Hybrid Automatic Repeat reQuest (HARQ) codebook needs to determine the length of the codebook based on the number of determined Physical Downlink Shared Channel (PDSCH) candidate reception timings.

[0004] In the related technology, the number of PDSCH candidate reception timings depends on the number of all downlink slots configured by the network side, and the number of bits of the quasi-static HARQ codebook also depends on the number of PDSCH candidate reception timings, and the resource overhead of the quasi-static HARQ codebook is large, which results in high energy consumption and large signaling overhead during the interaction process between the network side device and the terminal device. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present disclosure provide a method, apparatus and correlation device for determining candidate PDSCH reception timing to solve the problem of high energy consumption during the interaction process between a network side device and a terminal device. [Means for solving the problem]

[0006] In order to solve the above problems, the present disclosure is realized as follows.

[0007] In a first aspect, an embodiment of the present disclosure provides a candidate PDSCH reception timing determination method performed by a terminal, the method including: determining a target time domain resource; and determining a candidate PDSCH receiving timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource; The target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0008] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0009] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, determining a first set of candidate PDSCH receive timings based on a set of row indices according to the PDSCH time domain resource allocation; and eliminating candidate PDSCH reception timings from the first set that overlap with the target time domain resource to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information.

[0010] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, removing row indexes according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indexes according to PDSCH time domain resource allocations to obtain remaining row indexes according to PDSCH time domain resource allocations; and determining, based on a row index according to the remaining PDSCH time domain resource allocation, a third set of candidate PDSCH receive timings corresponding to HARQ-ACK information.

[0011] Optionally, determining the target time domain resource comprises: receiving a first message sent from a network side device, the first message including first indication information of the target time domain resource; and determining the target time domain resource based on the first indication information.

[0012] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, When the first time interval is less than the first time threshold and / or when the second time interval is less than the second time threshold, determining a candidate PDSCH reception timing corresponding to HARQ-ACK information according to a set of row indexes according to PDSCH time domain resource allocation; Here, the first time interval is a time interval between a first slot in which the terminal receives a first message and a current HARQ codebook feedback slot of the terminal, and the second time interval is a time interval between a second slot corresponding to the target time domain resource and a current HARQ codebook feedback slot of the terminal.

[0013] Optionally, the method further comprises: 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, determining a first set of candidate PDSCH receiving timings according to a set of row indexes according to PDSCH time domain resource allocation, and excluding candidate PDSCH receiving timings that overlap with the target time domain resource from the first set to obtain a second set of candidate PDSCH receiving timings corresponding to HARQ-ACK information; Or, and eliminating row indices according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indices according to PDSCH time domain resource allocations to obtain remaining row indices according to PDSCH time domain resource allocations; and determining a third set of candidate PDSCH reception timings corresponding to HARQ-ACK information based on the row indices according to the remaining PDSCH time domain resource allocations.

[0014] Optionally, the first message includes at least one of a system message, higher layer signaling, and downlink control information (DCI).

[0015] Optionally, after determining a candidate PDSCH receiving timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, the method further comprises: Constructing HARQ information bits based on the candidate PDSCH reception timings corresponding to the HARQ-ACK information.

[0016] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; a time domain resource for sleep; and a time domain resource corresponding to a predetermined subcarrier spacing.

[0017] In a second aspect, an embodiment of the present disclosure provides a candidate PDSCH reception timing determination method performed by a network side device, the method comprising: The first message is sent to the terminal, so that the terminal determines a target time domain resource based on the first message, and determines a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource; Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0018] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0019] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; a time domain resource for sleep; and a time domain resource corresponding to a predetermined subcarrier spacing.

[0020] Optionally, the first message includes at least one of a system message, higher layer signaling, and downlink control information (DCI).

[0021] In a third aspect, an embodiment of the present disclosure further provides a candidate PDSCH receiving timing determination device, the device comprising: a first processor, the first processor comprising: determining a target time domain resource; and determining a candidate PDSCH reception timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource; The target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0022] In a fourth aspect, an embodiment of the present disclosure further provides a candidate PDSCH receiving timing determination device, the device comprising: a second transceiver, the second transceiver comprising: The terminal is configured to perform the following: determining a target time domain resource based on a first message; and determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, the first message being transmitted to the terminal; Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0023] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, the communication device including a transceiver, a memory, a processor and a program stored in the memory and executable on the processor, the processor configured to read the program in the memory and implement steps of the method according to the first aspect or steps of the method according to the second aspect.

[0024] In a sixth aspect, an embodiment of the present disclosure further provides a readable storage medium for storing a program, which, when executed by a processor, realizes steps of the method according to the first aspect or steps of the method according to the second aspect. Effect of the Invention

[0025] In the embodiment of the present disclosure, based on the target time domain resource, the number of candidate PDSCH receiving timings corresponding to the determined hybrid automatic repeat request response (HARQ-ACK) information is reduced, and the number of bits for codebook feedback is further reduced, so as to save network resources and reduce energy consumption and signaling overhead during the interaction process between the network side device and the terminal device. [Brief description of the drawings]

[0026] [Figure 1] FIG. 1 is a structural schematic diagram of a network system to which an embodiment of the present disclosure can be applied; [Diagram 2] 1 is a schematic flow diagram of a method for determining candidate PDSCH reception timing according to an embodiment of the present disclosure; [Diagram 3] 13 is a schematic flow diagram of another candidate PDSCH reception timing determination method according to an embodiment of the present disclosure. [Figure 4]2 is a structural schematic diagram of a candidate PDSCH receiving timing determination device according to an embodiment of the present disclosure; [Diagram 5] 13 is a structural schematic diagram of another candidate PDSCH receiving timing determination device according to an embodiment of the present disclosure; [Figure 6] FIG. 2 is a structural schematic diagram of a communication device according to an embodiment of the present disclosure; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] In order to more clearly describe the technical solutions of the embodiments of the present disclosure, the above briefly describes the drawings that need to be used to describe the embodiments of the present disclosure. Obviously, the drawings in the above description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor.

[0028] Hereinafter, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present disclosure.

[0029] Terms such as "first", "second", etc. in the embodiments of the present disclosure are not necessarily used to describe a particular order or priority, but are used to distinguish between similar objects. Furthermore, "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, e.g., a process, method, system, product, or apparatus that includes a series of steps or units need not necessarily be limited to those specifically listed, but may include those not specifically listed, or other steps or units inherent to the process, method, product, or apparatus. Furthermore, "and / or" as used in the present disclosure means at least one of the connected objects, e.g., A and / or B and / or C, including distinct A, distinct B, distinct C, and the seven cases where both A and B are present, both B and C are present, both A and C are present, and A, B, and C are present.

[0030] 1 is a structural diagram of a network system to which an embodiment of the present disclosure can be applied. As shown in FIG. 1, the network system includes a data sending device 11 and a data receiving device 12.

[0031] Here, communication is possible between the data sending device 11 and the data receiving device 12. The data sending device 11 sends ciphertext information (Ciphertext Block) to the data receiving device 12.

[0032] In practical application, the data transmitting equipment 11 may be a terminal (also called User Equipment (UE)), and the data receiving equipment 12 may be a network side equipment, or the data transmitting equipment 11 may be a network side equipment and the data receiving equipment 12 may be a terminal, but is not limited thereto.

[0033] The terminal may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, or an in-vehicle device, etc. The network side device may be a base station, an access and mobility management function (AMF), a relay, an access point, or other network element, etc.

[0034] A method for determining candidate PDSCH reception timings according to an embodiment of the present disclosure will now be described.

[0035] 2 is a flow diagram of a method for determining candidate PDSCH receiving timings according to an embodiment of the present disclosure, the method for determining candidate PDSCH receiving timings shown in FIG. 2 may be performed by a terminal.

[0036] As shown in FIG. 2, the candidate PDSCH receiving timing determination method may include the following steps 201-202.

[0037] In step 201, a target time domain resource is determined.

[0038] Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0039] In addition, the situation instructed by the network side device to the terminal can be understood as the situation in which the network side device notifies the terminal during preparation for sleep, and the network side can consider its own energy saving needs and perform sleep to save energy consumption. Since the network side does not perform any data business scheduling for the slot in which the network side device sleeps, the terminal does not need to feed back a Hybrid Automatic Repeat reQuest (HARQ) codebook to the network side device. In this way, not only can the energy consumption of the terminal side transmitting HARQ information be saved, but also the energy consumption of the network side receiving HARQ information be saved, and the network side device transmits a sleep time and a time domain pattern (understood as the above first time domain resource) to the terminal during preparation for sleep.

[0040] In addition, the non-configured subcarrier spacing should be understood as a subcarrier spacing different from the subcarrier spacing configured by the network side device or the default subcarrier spacing. If the target time domain resource includes a fourth time domain resource corresponding to the non-configured subcarrier spacing, the terminal can first obtain the subcarrier spacing configured by the network side device or the default subcarrier spacing, and then recognize the non-configured subcarrier spacing according to the subcarrier spacing configured by the network side device or the default subcarrier spacing, and recognize the corresponding fourth time domain resource. For business channels in which some terminals only support one kind of subcarrier spacing, if the network side transmits the non-configured subcarrier spacing of the terminal on a partial time (i.e., the fourth time domain resource), the terminal cannot receive business data and does not need to perform HARQ feedback.

[0041] For terminals that do not support multicast and / or broadcast services, the network transmits multicast or broadcast services on the second time domain resource or the third time domain resource, and these terminals do not need to receive multicast and / or broadcast service data, and do not need to perform HARQ feedback.

[0042] In step 202, a candidate (Physical Downlink Shared Channel, PDSCH) reception timing corresponding to Hybrid Automatic Repeat reQuest acknowledgement (HARQ-ACK) information is determined based on the determined target time domain resource.

[0043] In addition, the candidate PDSCH reception timings corresponding to the determined HARQ-ACK information can be used to construct a semi-static codebook.

[0044] In some embodiments, when the target time domain resource includes a fourth time domain resource corresponding to a non-configured subcarrier spacing, the terminal can directly exclude, based on the subcarrier spacing configured by the network side equipment or the default subcarrier spacing, a PDSCH time domain resource corresponding to a subcarrier spacing different from the subcarrier spacing configured by the network side equipment or the default subcarrier spacing.

[0045] For the slots (first time domain resources) in which the network side sleeps, the network side does not schedule any data service, so the terminal does not need to feed back a mixed HARQ codebook to the network side device. In this way, not only can the terminal side save the energy consumption of transmitting HARQ information, but also the network side saves the energy consumption of receiving HARQ information.

[0046] For a business channel in which some terminals only support one type of subcarrier spacing, if the network side transmits the non-configured subcarrier spacing of the terminal on a partial time (i.e., the fourth time domain resource), the terminal cannot receive business data and does not need to perform HARQ feedback.

[0047] For terminals that do not support multicast and / or broadcast services, the network transmits multicast or broadcast services on the second time domain resource or the third time domain resource, and these terminals do not need to receive multicast and / or broadcast service data, and do not need to perform HARQ feedback.

[0048] As described above, based on the target time domain resource, the number of candidate PDSCH receiving timings corresponding to the determined HARQ-ACK information can be reduced, and the number of bits for codebook feedback can be further reduced, thereby saving network resources and reducing energy consumption and signaling overhead during the interaction process between the network side device and the terminal device.

[0049] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0050] As described above, when the candidate PDSCH reception timing corresponding to the determined HARQ-ACK information excludes a time domain resource associated with the target time domain resource, other time domain resources may also be excluded accordingly, and the other time domain resources may be different from the target time domain resource. The other time domain resources to be excluded may be determined according to actual needs during application, and the embodiments of the present disclosure are not limited thereto.

[0051] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, determining a first set of candidate PDSCH receive timings based on a set of row indices according to the PDSCH time domain resource allocation; and eliminating candidate PDSCH reception timings from the first set that overlap with the target time domain resource to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information.

[0052] Here, the set of row indexes according to the PDSCH time domain resource allocation is a PDSCH time domain resource table (hereinafter referred to as a first PDSCH table) that is pre-configured by a network side device for the terminal, or pre-defined by a protocol, or pre-configured by the terminal, the first PDSCH table includes at least two rows of PDSCH time domain resources, and the PDSCH time domain resources of each row correspond to one row index, and the first set can be obtained by calculating candidate PDSCH reception timings of the PDSCH time domain resources of each row.

[0053] In addition, before calculating the candidate PDSCH reception timing of the PDSCH time domain resource of each row, the terminal further excludes the PDSCH time domain resource for uplink (UL) transmission from the first PDSCH table based on the K1 value of the PDSCH time domain resource of each row to obtain a second PDSCH table (i.e., the PDSCH time domain resource table after excluding the UL slot), and then calculates the candidate PDSCH reception timing of the PDSCH time domain resource of each row in the second PDSCH table over the second PDSCH table.

[0054] After obtaining the first set, the terminal may obtain a second set for codebook feedback by excluding candidate PDSCH reception timings that overlap with the target time domain resource from the first set.

[0055] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, removing row indexes according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indexes according to PDSCH time domain resource allocations to obtain remaining row indexes according to PDSCH time domain resource allocations; and determining, based on a row index according to the remaining PDSCH time domain resource allocation, a third set of candidate PDSCH receive timings corresponding to HARQ-ACK information.

[0056] As described above, in order to determine the candidate PDSCH reception timings corresponding to the HARQ-ACK information, row indexes according to PDSCH time domain resource allocations that overlap with the target time domain resource are first excluded from the first PDSCH table to obtain a third PDSCH table (corresponding to row indexes according to the remaining PDSCH time domain resource allocations), and then candidate PDSCH reception timings of the PDSCH time domain resources of each row in the third PDSCH table are calculated to obtain a third set for codebook feedback.

[0057] In addition, when eliminating row indexes due to PDSCH time domain resource allocation that overlap with the target time domain resource in the first PDSCH table, row indexes due to PDSCH time domain resource allocation corresponding to UL slots can also be deleted all at once. In this case, the PDSCH time domain resource of any row in the third PDSCH table does not overlap with the target time domain resource and does not correspond to the UL slot.

[0058] In addition, the second set and the third set are the same set, and preferably, the acquisition method of the third set (i.e., first, exclude row indexes according to PDSCH time domain resource allocation that overlap with the target time domain resource from the first PDSCH table, and then determine the candidate PDSCH reception timings corresponding to the HARQ-ACK information based on the row indexes according to PDSCH time domain resource allocation that do not overlap with the target time domain resource) is applied to determine the candidate PDSCH reception timings corresponding to the HARQ-ACK information, and the terminal does not receive any business data at these timings. Therefore, this embodiment can reduce the overhead of the candidate PDSCH reception timings of the PDSCH time domain resource and the overhead of the HARQ codebook, and further reduce the energy consumption and signaling overhead of the terminal and the network side equipment.

[0059] Optionally, determining the target time domain resource comprises: receiving a first message sent from a network side device, the first message including first indication information of the target time domain resource; and determining the target time domain resource based on the first indication information.

[0060] As described above, when the network side device does not need to feed back the HARQ codebook from the terminal, the network side device generates a first message accompanied by first indication information and transmits the first message downlink. In this manner, the terminal eliminates the overlapping part with the target time domain resource when feeding back the HARQ codebook, thereby reducing the number of bits of the codebook feedback by the terminal and saving network resources.

[0061] Selectively determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, When the first time interval is less than the first time threshold and / or when the second time interval is less than the second time threshold, determining a candidate PDSCH reception timing corresponding to HARQ-ACK information according to a set of row indexes according to PDSCH time domain resource allocation; Here, the first time interval is a time interval between a first slot in which the terminal receives a first message and a current HARQ codebook feedback slot of the terminal, and the second time interval is a time interval between a second slot corresponding to the target time domain resource and a current HARQ codebook feedback slot of the terminal.

[0062] As described above, by configuring the first and second time thresholds, it is possible to avoid the decoding operation (used to determine a target time domain resource) and / or the elimination operation (used to eliminate PDSCH time domain resources that overlap with the target time domain resource) taking too long, and to ensure that the current HARQ codebook feedback operation by the terminal is completed smoothly within a certain slot.

[0063] Here, it is explained that if the first time interval is less than the first time threshold, the terminal has insufficient time to decode the first indication information in the first message in the current HARQ codebook operation, so during the current HARQ codebook operation, the terminal skips the step of eliminating the physical downlink shared channel PDSCH time domain resource that overlaps with the target time domain resource, and directly determines the candidate PDSCH reception timing corresponding to the HARQ-ACK information based on the first PDSCH table.

[0064] It is explained that if the second time interval is less than the second time threshold, the terminal has insufficient time to eliminate PDSCH time domain resources overlapping with the target time domain resource in the current HARQ codebook operation, so during the current HARQ codebook feedback operation, the terminal also skips the step of eliminating physical downlink shared channel PDSCH time domain resources overlapping with the target time domain resource, and directly determines a candidate PDSCH reception timing corresponding to HARQ-ACK information based on the first PDSCH table.

[0065] The first slot is earlier than the second slot, and the second slot is earlier than a current HARQ codebook feedback slot of the terminal.

[0066] In addition, during the next HARQ codebook feedback operation, the terminal According to a set of row indexes according to PDSCH time domain resource allocation, a first set of candidate PDSCH reception timings is determined, and from the first set, candidate PDSCH reception timings that overlap with the target time domain resource are excluded to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information; From the set of row indices based on PDSCH time domain resource allocations, row indices based on PDSCH time domain resource allocations that overlap with the target time domain resource can be excluded to obtain remaining row indices based on PDSCH time domain resource allocations, and a third set of candidate PDSCH reception timings corresponding to HARQ-ACK information can be determined based on the remaining row indices based on the remaining PDSCH time domain resource allocations.

[0067] Here, the next HARQ codebook feedback operation may be understood as a HARQ codebook feedback operation performed by the terminal after the current HARQ codebook feedback operation is completed and before the terminal receives a first message accompanied by first indication information transmitted again from the network side device, and the HARQ codebook feedback operation may be performed once or more than once.

[0068] Optionally, the method further comprises: 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, determining a first set of candidate PDSCH receiving timings according to a set of row indexes according to PDSCH time domain resource allocation, and excluding candidate PDSCH receiving timings that overlap with the target time domain resource from the first set to obtain a second set of candidate PDSCH receiving timings corresponding to HARQ-ACK information; Or, and eliminating row indices according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indices according to PDSCH time domain resource allocations to obtain remaining row indices according to PDSCH time domain resource allocations; and determining a third set of candidate PDSCH reception timings corresponding to HARQ-ACK information based on the row indices according to the remaining PDSCH time domain resource allocations.

[0069] As mentioned above, if the time for decoding the first indication information in the first message is sufficient (meaning that the first time interval is greater than or equal to the first time threshold) and the time for eliminating the PDSCH time domain resource overlapping with the target time domain resource is sufficient, the terminal can reduce the number of candidate PDSCH receiving timings corresponding to the determined HARQ-ACK information by eliminating the PDSCH time domain resource overlapping with the target time domain resource, and further reduce the number of bits for codebook feedback, thereby achieving the purpose of saving network resources.

[0070] Optionally, the first message includes at least one of a system message, higher layer signaling, and Downlink Control Information (DCI).

[0071] As described above, by setting the first message to be at least one of a system message, higher layer signaling, and DCI, it meets the message down transmission requirements in complex scenes, thereby ensuring that the network side device smoothly completes the downlink transmission operation for the first message.

[0072] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

[0073] Optionally, after determining a candidate PDSCH receiving timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, the method further comprises: Constructing HARQ information bits based on the candidate PDSCH reception timings corresponding to the HARQ-ACK information.

[0074] As described above, after obtaining the candidate PDSCH receiving timing corresponding to the HARQ-ACK information, the HARQ information bit is constructed to complete the message feedback to the network side device.

[0075] 3 is a flow diagram of another candidate PDSCH receiving timing determination method according to an embodiment of the present disclosure. The candidate PDSCH receiving timing determination method shown in FIG. 3 can be performed by a network side device.

[0076] As shown in FIG. 3, the candidate PDSCH receiving timing determination method may include the following steps: 301 .

[0077] In step 301, the first message is sent to the terminal, so that the terminal determines a target time domain resource based on the first message, and determines a candidate PDSCH receiving timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource.

[0078] Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0079] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0080] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

[0081] Optionally, the first message includes at least one of a system message, higher layer signaling, and downlink control information (DCI).

[0082] In addition, since this embodiment is an embodiment of a network side device corresponding to the method embodiment shown in FIG. 2, the relevant description in the above method embodiment can be referred to, and the same beneficial effects can be achieved. In order to avoid duplication, the description will be omitted here.

[0083] 4 is a structural schematic diagram of a candidate PDSCH receiving timing determining device 400 according to an embodiment of the present disclosure. As shown in FIG. 4, the candidate PDSCH receiving timing determining device 400 includes: a first processor 401;

[0084] The first processor 401 is determining a target time domain resource; and determining a candidate PDSCH reception timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource; The target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0085] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0086] Optionally, the first processor 401 specifically: determining a first set of candidate PDSCH receive timings based on a set of row indices according to the PDSCH time domain resource allocation; and eliminating from the first set of candidate PDSCH reception timings that overlap with the target time domain resource to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information.

[0087] Optionally, the first processor 401 specifically: removing row indexes according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indexes according to PDSCH time domain resource allocations to obtain remaining row indexes according to PDSCH time domain resource allocations; and determining, based on a row index according to the remaining PDSCH time domain resource allocation, a third set of candidate PDSCH receive timings corresponding to HARQ-ACK information.

[0088] Optionally, the candidate PDSCH receiving timing determination device 400 further includes a first transceiver, the first transceiver comprising: The method is configured to perform receiving a first message sent from a network side device, where the first message includes first indication information of the target time domain resource.

[0089] The first processor 401 further comprises: The method is configured to perform determining the target time domain resource based on the first indication information.

[0090] Optionally, the first processor 401 specifically: When a first time interval is less than the first time threshold and / or when a second time interval is less than a second time threshold, performing determining a candidate PDSCH reception timing corresponding to HARQ-ACK information based on a set of row indexes according to PDSCH time domain resource allocation; Here, the first time interval is a time interval between a first slot in which the terminal receives a first message and a current HARQ codebook feedback slot of the terminal, and the second time interval is a time interval between a second slot corresponding to the target time domain resource and a current HARQ codebook feedback slot of the terminal.

[0091] Optionally, the first processor 401 specifically: 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, determining a first set of candidate PDSCH receiving timings according to a set of row indexes according to PDSCH time domain resource allocation, and excluding candidate PDSCH receiving timings that overlap with the target time domain resource from the first set to obtain a second set of candidate PDSCH receiving timings corresponding to HARQ-ACK information; Or, and determining a third set of candidate PDSCH reception timings corresponding to HARQ-ACK information based on the row indices of the remaining PDSCH time domain resource allocations according to the row indices of the remaining PDSCH time domain resource allocations, based on the row indices of the remaining PDSCH time domain resource allocations.

[0092] Optionally, the first message includes at least one of a system message, higher layer signaling, and downlink control information (DCI).

[0093] Optionally, the first processor 401 may further include: The HARQ-ACK information bit is configured to perform constructing HARQ information bits based on the candidate PDSCH receiving timings corresponding to the HARQ-ACK information.

[0094] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

[0095] The candidate PDSCH receiving timing determination device 400 can implement each process of the method embodiment according to Fig. 2 of the embodiment of the present disclosure to achieve the same beneficial effects, and in order to avoid repetition, the description will be omitted here.

[0096] 5 is a structural schematic diagram of another candidate PDSCH receiving timing determining apparatus 500 according to an embodiment of the present disclosure. As shown in FIG. 5, the candidate PDSCH receiving timing determining apparatus 500 includes: a second transceiver 501; The second transceiver 501 is The terminal is configured to perform the following: determining a target time domain resource based on a first message; and determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, the first message being transmitted to the terminal; Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

[0097] Optionally, the determined candidate PDSCH reception timings corresponding to the hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

[0098] Optionally, the first time domain resource is: time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

[0099] Optionally, the first message includes at least one of a system message, higher layer signaling, and downlink control information (DCI).

[0100] The candidate PDSCH receiving timing determination device 500 can implement each process of the method embodiment according to Fig. 3 of the embodiment of the present disclosure to achieve the same beneficial effects, and in order to avoid repetition, the description will be omitted here.

[0101] An embodiment of the present disclosure further provides a communication device. As shown in FIG. 6, the communication device may include a processor 601, a memory 602, and a program 6021 stored in the memory 602 and executable by the processor 601.

[0102] If the communication device is a terminal, when the program 6021 is executed by the processor 601, any step in the method embodiment corresponding to FIG. 2 can be realized to achieve the same beneficial effect, and the description will be omitted here.

[0103] When the communication device is a network side device, when the program 6021 is executed by the processor 601, any step in the method embodiment corresponding to FIG. 3 can be realized to achieve the same beneficial effect, and the description will be omitted here.

[0104] Those skilled in the art will understand that all or part of the steps of the above embodiment method can be completed by hardware associated with program program instructions that can be stored in a readable medium. The embodiment of the present disclosure further provides a readable storage medium storing a computer program, which, when executed by a processor, can realize any steps in the method embodiment corresponding to the above Figure 2 or Figure 3, and achieve the same technical effect, and the description will be omitted here to avoid duplication.

[0105] The storage medium may be a storage medium such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

[0106] It should be noted that, in this specification, terms such as "comprise", "have" or any other variants are intended to include a non-exclusive inclusion, whereby a process, method, article or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or elements inherent to such process, method, article or apparatus. Without further limitations, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or apparatus that includes the element. It should be noted that the scope of the methods and apparatus in the embodiments of the present disclosure is not limited to performing functions in the order shown or discussed, and can further include performing functions essentially simultaneously or in reverse order according to the relevant functions, e.g., the methods described can be performed in a different order than described, and various steps may be added, omitted or combined. Also, features described with reference to some examples may be combined in other examples.

[0107] It should be pointed out that the above are preferred embodiments of the present disclosure, and some improvements and modifications may be made by those skilled in the art without departing from the principles of the present disclosure, which should be regarded as within the protection scope of the present disclosure.

Claims

1. A method for determining candidate PDSCH reception timing, comprising: determining a target time domain resource; and determining a candidate physical downlink shared channel (PDSCH) reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource; The target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

2. The method of claim 1, wherein the candidate PDSCH reception timings corresponding to the determined hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

3. determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, determining a first set of candidate PDSCH receive timings based on a set of row indices according to the PDSCH time domain resource allocation; and excluding candidate PDSCH reception timings from the first set that overlap with the target time domain resource to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information.

4. determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, removing row indices according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indices according to PDSCH time domain resource allocations to obtain remaining row indices according to PDSCH time domain resource allocations; and determining a third set of candidate PDSCH receive timings corresponding to HARQ-ACK information based on a row index according to the remaining PDSCH time domain resource allocations.

5. Determining the target time domain resource comprises: receiving a first message sent from a network side device, the first message including first indication information of the target time domain resource; and determining the target time domain resource based on the first indication.

6. determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, When the first time interval is less than the first time threshold and / or when the second time interval is less than the second time threshold, determining a candidate PDSCH reception timing corresponding to HARQ-ACK information based on a set of row indexes according to PDSCH time domain resource allocation; 6. The method of claim 5, wherein the first time interval is a time interval between a first slot in which a terminal receives a first message and a current hybrid automatic repeat request (HARQ) codebook feedback slot of the terminal, and the second time interval is a time interval between a second slot corresponding to the target time domain resource and a current HARQ codebook feedback slot of the terminal.

7. The method further comprises: 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, determining a first set of candidate PDSCH reception timings according to a set of row indexes according to PDSCH time domain resource allocation, and excluding candidate PDSCH reception timings that overlap with the target time domain resource from the first set to obtain a second set of candidate PDSCH reception timings corresponding to HARQ-ACK information; Or, 7. The method of claim 6, further comprising: eliminating row indices according to PDSCH time domain resource allocations that overlap with the target time domain resource from a set of row indices according to PDSCH time domain resource allocations to obtain row indices according to remaining PDSCH time domain resource allocations; and determining a third set of candidate PDSCH reception timings corresponding to HARQ-ACK information based on the row indices according to the remaining PDSCH time domain resource allocations.

8. The method of claim 5 , wherein the first message comprises at least one of a system message, higher layer signaling, and downlink control information (DCI).

9. After determining a candidate PDSCH receiving timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information according to the determined target time domain resource, the method further comprises:

2. The method of claim 1, comprising constructing HARQ information bits based on candidate PDSCH reception timings corresponding to HARQ-ACK information.

10. The first time domain resource is time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

11. A method for determining candidate PDSCH reception timing, comprising: The method includes transmitting the first message to a terminal, so as to determine a target time domain resource based on the first message, and to determine a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource; Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

12. The method of claim 11, wherein the candidate PDSCH reception timings corresponding to the determined hybrid automatic repeat request response (HARQ-ACK) information do not include a time domain resource related to the target time domain resource.

13. The first time domain resource is time domain resources not used for downlink reception; a time domain resource for uplink transmission; and a time domain resource for sleep.

14. The method of claim 11 , wherein the first message comprises at least one of a system message, higher layer signaling, and downlink control information (DCI).

15. A candidate PDSCH reception timing determination device, a first processor, the first processor comprising: determining a target time domain resource; and determining a candidate PDSCH reception timing corresponding to a hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource; The target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

16. A candidate PDSCH reception timing determination device, a second transceiver, the second transceiver comprising: The terminal is configured to execute the following: determining a target time domain resource based on a first message; and determining a candidate PDSCH reception timing corresponding to hybrid automatic repeat request response (HARQ-ACK) information based on the determined target time domain resource, by transmitting the first message to the terminal; Wherein the target time domain resource is: A first time domain resource instructed by the network side device to the terminal; A second time domain resource for a network side device to transmit a multicast service; A third time domain resource for a network side device to transmit a broadcast service; and a fourth time domain resource corresponding to a non-configured subcarrier spacing.

17. A communication device, A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, Here, the processor is configured to read a program in a memory and implement steps in the candidate PDSCH reception timing determination method according to any one of claims 1 to 10 or steps in the candidate PDSCH reception timing determination method according to any one of claims 11 to 14. A communications device.

18. A readable storage medium for storing a program, A readable storage medium that, when the program is executed by a processor, realizes steps in the candidate PDSCH reception timing determination method according to any one of claims 1 to 10 or steps in the candidate PDSCH reception timing determination method according to any one of claims 11 to 14.

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