Transmission methods, apparatus, communication equipment and readable storage media

Abstract

This application discloses a transmission method, apparatus, communication device, and readable storage medium. The method includes: multiplexing a second-priority uplink channel with one of a plurality of first-priority uplink channels according to first information, or discarding the second-priority uplink channel. The first information indicates whether the plurality of first-priority uplink channels support multiplexing transmission between uplink channels of different priorities. The plurality of first-priority uplink channels and one second-priority uplink channel have time-domain resource overlap, and the plurality of first-priority uplink channels do not have time-domain resource overlap.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a transmission method, apparatus, communication equipment, and readable storage medium. Background Technology

[0002] In related technologies, to avoid downlink retransmission problems caused by discarding Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) messages carried on low-priority channels, multiplexing transmission between low-priority and high-priority HARQ-ACKs is supported. Since the Physical Uplink Control Channel (PUCCH) carrying HARQ-ACKs with different priorities may provide feedback based on different time units—for example, high-priority HARQ-ACKs might use a sub-slot-based feedback mechanism, while low-priority HARQ-ACKs might use a slot-based feedback mechanism, or vice versa—multiple non-overlapping high-priority HARQ-ACKs may simultaneously overlap with the same low-priority HARQ-ACK in the time domain. Figure 1 As shown, the reverse is also true (i.e., if high-priority uses a slot-based feedback mechanism and low-priority uses a sub-slot-based feedback mechanism, multiple non-overlapping low-priority HARQs will overlap with a high-priority HARQ-ACK in the time domain). How to transmit in this situation is an urgent problem to be solved. Summary of the Invention

[0003] This application provides a transmission method, apparatus, communication device, and readable storage medium, which can solve the problem of how to transmit data when multiple non-overlapping high-priority HARQ-ACKs overlap with the same low-priority HARQ-ACK in the time domain, or when multiple non-overlapping low-priority HARQs overlap with a high-priority HARQ-ACK in the time domain.

[0004] This application provides a transmission method applied to a terminal, including:

[0005] Based on the first information, the uplink channel of the second priority is multiplexed with one of the multiple uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded.

[0006] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0007] Optionally, based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including:

[0008] If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple PDCCHs corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the multiple PDCCHs is the same;

[0009] Based on the first information, one of the multiple first-priority uplink channels is determined as the target uplink channel, and the target uplink channel is multiplexed with the second-priority uplink channel, or the second-priority uplink channel is discarded.

[0010] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0011] Optionally, determining one of the plurality of uplink channels with first priority as the target uplink channel based on the first information includes:

[0012] When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel.

[0013] or,

[0014] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0015] Optionally, based on the first information, discarding the uplink channel of the second priority includes:

[0016] If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, the uplink channel of the second priority is discarded.

[0017] Optionally, based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including:

[0018] If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling.

[0019] When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and the uplink channel of the second priority is multiplexed with the target uplink channel for transmission.

[0020] or,

[0021] If none of the multiple first-priority uplink channels in the higher-layer signaling configuration support multiplexing transmission between uplink channels of different priorities, then the second-priority uplink channel is discarded.

[0022] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0023] Optionally, based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including:

[0024] If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain the indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0025] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to select a target uplink channel in the first type of uplink channels and multiplex it with the uplink channel of the second priority;

[0026] If the indication information in the PDCCH corresponding to the first type of uplink channel indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to multiplex the second priority uplink channel with one of the multiple first priority uplink channels, or whether to discard the second priority uplink channel, based on the configuration of the higher-layer signaling.

[0027] Optionally, determining whether to select a target uplink channel from the first type of uplink channels and multiplex it with the uplink channel of the second priority, based on the indication information in the PDCCH corresponding to the first type of uplink channel, includes:

[0028] Method A: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority; or

[0029] Method B: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and the target uplink channel is multiplexed with the second priority uplink channel.

[0030] Optionally, when using method A, in the presence of multiple first-type uplink channels, at most one of the multiple PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0031] When using method B, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0032] Optionally, based on the configuration of higher-layer signaling, determining whether to multiplex the second-priority uplink channel with one of the plurality of first-priority uplink channels, or determining whether to discard the second-priority uplink channel, includes:

[0033] If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority.

[0034] or,

[0035] If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority is discarded.

[0036] Optionally, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0037] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0038] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0039] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0040] Optionally, the conditions for performing the step of multiplexing the second-priority uplink channel with one of the plurality of first-priority uplink channels according to the first information, or discarding the second-priority uplink channel, further include:

[0041] The terminal does not support parallel transmission between uplink channels with different priorities;

[0042] or,

[0043] The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource.

[0044] Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest.

[0045] or,

[0046] The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority.

[0047] or,

[0048] Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or,

[0049] The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0050] Optionally, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

[0051] Secondly, a transmission method is provided, applied to a network-side device, including:

[0052] Based on the first information, receive multiplexed transmission on one of the multiple first-priority uplink channels and the second-priority uplink channel, or do not receive the second-priority uplink channel.

[0053] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0054] Optionally, based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes:

[0055] If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple PDCCHs corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the multiple PDCCHs is the same;

[0056] Based on the first information, determine one of the multiple first-priority uplink channels as the target uplink channel, and receive multiplexed transmission on the second-priority uplink channel and the target uplink channel, or do not receive the second-priority uplink channel.

[0057] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0058] Optionally, determining one of the plurality of uplink channels with first priority as the target uplink channel based on the first information includes:

[0059] When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel.

[0060] or,

[0061] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0062] Optionally, based on the first information, not receiving the uplink channel of the second priority includes:

[0063] If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, then the uplink channel of the second priority will not be received.

[0064] Optionally, based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes:

[0065] If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling.

[0066] When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and multiplexing transmission between the uplink channel of the second priority and one of the uplink channels of the multiple first priority is received.

[0067] or,

[0068] If the higher-layer signaling configuration does not support multiplexing transmission between uplink channels of different priorities, the uplink channel of the second priority will not be received.

[0069] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0070] Optionally, based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes:

[0071] If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0072] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to receive multiplexed transmission on one of the multiple first priority uplink channels and the second priority uplink channel;

[0073] If the indication information in the first type of uplink channel PDCCH indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to receive multiplexing transmission between the second priority uplink channel and one of the plurality of first priority uplink channels, or whether to receive the second priority uplink channel, based on the configuration of the higher-layer signaling.

[0074] Optionally, determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels and the second-priority uplink channel based on the indication information in the first type of uplink channel PDCCH includes:

[0075] Method C: When the indication information in the first type of uplink channel PDCCH indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received; or

[0076] Method D: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

[0077] Optionally, when using method C, in the presence of multiple first-type uplink channels, at most one of the PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0078] When using mode D, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0079] Optionally, determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels and the second-priority uplink channel, or whether to receive transmission on the second-priority uplink channel, based on the higher-layer signaling, includes:

[0080] If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

[0081] or,

[0082] If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority will not be received.

[0083] Optionally, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0084] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0085] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0086] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0087] Optionally, the conditions for performing the step of receiving multiplexed transmission on one of the plurality of first-priority uplink channels and a second-priority uplink channel according to the first information, or not receiving the second-priority uplink channel, include:

[0088] Parallel transmission between uplink channels with different priorities is not supported.

[0089] or,

[0090] The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource.

[0091] Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest.

[0092] or,

[0093] The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority.

[0094] or,

[0095] Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or,

[0096] The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0097] Optionally, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

[0098] Thirdly, a transmission device is provided for use in a terminal, comprising:

[0099] A first processing module is configured to, based on first information, multiplex the uplink channel of the second priority with one of the plurality of uplink channels of the first priority, or discard the uplink channel of the second priority, wherein the first information indicates whether the plurality of uplink channels of the first priority support multiplexing transmission between uplink channels of different priorities.

[0100] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0101] Fourthly, a transmission device is provided for use in network-side equipment, comprising:

[0102] The second processing module is configured to, based on the first information, receive multiplexed transmission between the second priority uplink channel and one of the plurality of first priority uplink channels, or not receive the second priority uplink channel, wherein the first information indicates whether the plurality of first priority uplink channels support multiplexed transmission between uplink channels of different priorities.

[0103] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0104] Fifthly, a terminal is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, performs the steps of the method as described in either the first or second aspect.

[0105] A sixth aspect provides a network-side device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in the first or second aspect.

[0106] A seventh aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first or second aspect.

[0107] In this embodiment, when there is temporal resource overlap between multiple uplink channels with first priority and one uplink channel with second priority, and no temporal resource overlap between multiple uplink channels with first priority, the transmission method is determined based on the judgment result of whether HARQ-ACK multiplexing transmission with different priorities is supported. This ensures that one uplink channel can be selected from multiple uplink channels with low priority and multiplexed with an uplink channel with second priority, avoiding the impact on latency and transmission performance caused by reusing two non-overlapping uplink channels with first priority due to the reuse of existing multiplexing rules. Attached Figure Description

[0108] Figure 1 This is a schematic diagram showing that multiple non-overlapping high-priority HARQ-ACKs simultaneously overlap with the same low-priority HARQ-ACK in the time domain.

[0109] Figure 2 This is one of the flowcharts of the transmission method provided in the embodiments of this application;

[0110] Figure 3 This is the second flowchart of the transmission method provided in the embodiments of this application;

[0111] Figure 4 This is a schematic diagram of Case 1 in Example 1;

[0112] Figure 5 This is a schematic diagram of case 2 in Example 1;

[0113] Figure 6 This is a schematic diagram of case 3 in Example 1;

[0114] Figure 7 This is a schematic diagram of case 1 in Example 2;

[0115] Figure 8 This is a schematic diagram of case 2 in Example 2;

[0116] Figure 9 This is a schematic diagram of case 1 in Example 3;

[0117] Figure 10 This is a schematic diagram of case 2 in Example 3;

[0118] Figure 11 This is a schematic diagram of case 3 in embodiment 3;

[0119] Figure 12 This is one of the schematic diagrams of the transmission device provided in the embodiments of this application;

[0120] Figure 13 This is a second schematic diagram of the transmission device provided in the embodiments of this application;

[0121] Figure 14 This is a schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0122] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0123] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0124] To facilitate understanding of the technical solution of this application, the following technical points are introduced:

[0125] I. Regarding Uplink Control Information (UCI) transmission in 5G NR (5 Generation New Radio):

[0126] The UCI contains information such as Hybrid Automatic Repeat Request-ACK (HARQ-ACK), Channel State Information (CSI), and Scheduling Request (SR). The UCI is transmitted on the Physical Uplink Control Channel (PUCCH). HARQ-ACK is a collective term for positive acknowledgment (ACK) and negative acknowledgment (NACK). It is used to provide feedback to the Physical Downlink Shared Channel (PDSCH) or Physical Downlink Control Channel (PDCCH) that requires HARQ-ACK feedback (such as the PDCCH indicating semi-persistent scheduling (SPS) resource release, or the PDCCH indicating secondary cell dormancy), informing the base station whether the PDSCH or the PDCCH requiring HARQ-ACK feedback has been received correctly. CSI is used to provide feedback on the channel quality of downlink transmission, thereby helping the base station to better perform downlink scheduling, such as selecting and configuring appropriate resource blocks based on the modulation and coding scheme (MCS) according to the CSI. Block (RB) resources, etc.; SR is used to request the allocation of Physical Uplink Shared Channel (PUSCH) transmission resources from the base station when the terminal needs to transmit uplink services, so as to carry out uplink service transmission.

[0127] HARQ-ACK can provide feedback based on different time units, which can be slots or sub-slots. A sub-slot is a fixed division of a slot into multiple sub-units according to a predetermined sub-slot length. For example, a sub-slot with a length of 7 symbols can divide a slot containing 14 symbols into 2 sub-slots, or a sub-slot with a length of 2 symbols can divide a slot containing 14 symbols into 7 sub-slots. When feedback is based on time slots, the time slot where the PUCCH carrying HARQ-ACK is transmitted is determined according to the feedback timing n+k1, where n is the reference uplink time slot corresponding to the time slot of the downlink transmission (including PDSCH and PDCCH that need HARQ-ACK feedback) that requires HARQ-ACK feedback, and k1 is the time slot offset value between the reference uplink time slot and the target time slot for transmitting HARQ-ACK (i.e., the unit of k1 is time slots). When feedback is based on sub-time slots, the sub-time slot where the PUCCH carrying HARQ-ACK is transmitted is determined according to the feedback timing n+k1, where n is the reference uplink sub-time slot corresponding to the time slot of the downlink transmission (including PDSCH and PDCCH that need HARQ-ACK feedback) that requires HARQ-ACK feedback, and k1 is the sub-time slot offset value between the reference uplink sub-time slot and the target sub-time slot for transmitting HARQ-ACK (i.e., the unit of k1 is sub-time slots). The PUCCH resource carrying HARQ-ACK will not cross the time unit used for HARQ-ACK feedback. That is, if it is transmitted based on sub-slot, the PUCCH carrying HARQ-ACK will not exceed the sub-slot boundary, and will not be transmitted across multiple sub-slots.

[0128] II. Regarding the overlap of PUCCH and PUCCH / PUSCH with the same priority

[0129] Related technologies do not support the parallel transmission of PUCCH and PUSCH at the same time, regardless of whether they are on the same carrier or different carriers. When PUCCH and PUSCH (unless otherwise specified, PUCCH and PUSCH generally refer to PUCCH and PUSCH that do not use repeated transmission) overlap in time domain resources, UCI (usually HARQ-ACK and CSI) can be transferred from PUCCH to a PUSCH for transmission, provided that a predetermined timeline is met. If SR exists, SR will not be transmitted on PUSCH and will be discarded. If multiple PUSCHs overlap with a PUCCH, a PUSCH is selected according to predetermined rules. Priority is given to PUSCHs carrying aperiodic channel state information (A-CSI). If both PUSCHs with PDCCH scheduling (Dynamic Grant (DG) PUSCHs) and PUSCHs without PDCCH scheduling (Configured Grant (CG) PUSCHs, semi-persistent channel state information (Semi-persistent CSI SP-CSI) PUSCHs, etc.) exist, the DG PUSCH is selected first. After selection according to the above rules, if there are PUSCHs on multiple carriers, the PUSCH on the carrier with the lower carrier number is selected first. If multiple non-overlapping PUSCHs overlap with a PUCCH on the selected carrier, the earliest PUSCH is selected.

[0130] The timeline is defined as follows: If a PUCCH or PUSCH has a corresponding PDCCH, for example, if the HARQ-ACK carried by the PUCCH is the HARQ-ACK of a PDSCH with PDCCH scheduling or the HARQ-ACK of a PDCCH indicating the release of downlink SPS resources, then the PDCCH of the scheduling PDSCH or the PDCCH indicating the release of downlink SPS resources is the PDCCH corresponding to the PUCCH, or it can also be called the PDCCH of the scheduling PUCCH. The PDCCH of the scheduling PUSCH is the PDCCH corresponding to the PUSCH. The first symbol of the channel with the earliest start time among the overlapping PUCCH and PUSCH is taken as the target symbol. If there are multiple channels with the same start time, one channel is randomly selected and its first symbol is taken as the target symbol. The target symbol must meet the following timeline to be multiplexed and transmitted; otherwise, it is considered an incorrect scheduling:

[0131] Timeline 1: The target symbol is no earlier than the first symbol after a T1mux time interval following the last symbol of any PDSCH or SPS PDSCH release that requires HARQ-ACK feedback on the PUCCH (including Cyclic Prefix (CP)). In other words, the time interval between the target symbol and the last symbol of any of the aforementioned PDSCH or SPS PDSCH releases is no less than T1mux. T1mux is related to the PDSCH processing delay and can be calculated using a predetermined formula and relevant parameters. The purpose of this timeline is to ensure that HARQ-ACK acquisition and preparation are completed before the commencement of transmission on the finalized channel for HARQ-ACK transmission.

[0132] Timeline 2: The target symbol is no earlier than the first symbol (including CP) after the T2mux time following the last symbol of any PDCCH (including PDCCHs requiring HARQ-ACK feedback) that is scheduled for PDSCH (if any) and PUSCH (if any). In other words, the time interval between the target symbol and the last symbol of any of the aforementioned PDCCHs is no less than T2mux. T2mux is related to the processing delay of PUSCH and can be calculated using a predetermined formula and relevant parameters. The purpose of this timeline is to ensure that when UCI needs to be transferred to PUSCH for transmission, the PDCCH scheduled for PUSCH can be obtained before PUCCH preparation begins, thus determining that UCI transmission does not need to be prepared on PUCCH, and that transmission preparation, including UCI, can be completed before PUSCH transmission, i.e., UCI acquisition and multiplexing processing, and TB preparation (such as encoding, modulation, scrambling, etc.). If it is multiplexing between multiple PUCCHs, this T2mux is used to simulate the preparation time for CSI and SR multiplexing with HARQ-ACK.

[0133] If the HARQ-ACK carried by the PUCCH does not have a corresponding PDCCH (i.e., the HARQ-ACK is the HARQ-ACK of the SPS PDSCH), then there is no PDCCH to schedule the PDSCH. If there is no PUSCH or no corresponding PDCCH, then only T1mux needs to be checked, and T2mux does not need to be checked. If the PUCCH carries CSI and / or SR, then since there is no corresponding PDSCH, T1mux does not need to be checked. Furthermore, if there is no PUSCH or no corresponding PDCCH, then T2mux also does not need to be checked.

[0134] If PUCCHs overlap, and at least one PUCCH is repeatedly transmitted (i.e., repeatedly transmitting UCI in each time slot, also known as multi-time slot transmission), then only for overlapping repetitions, the higher priority is transmitted and the lower priority is discarded, without affecting repetitions that do not overlap. If a PUCCH overlaps with a repetitive PUSCH, when the PUSCH uses slot-based repetition (version 15 (R15) repetition, or version 15 (R16) repetition type A), the UCI carried by the PUCCH is transferred to one or more PUSCH slots overlapping with the PUCCH for transmission. When the PUSCH uses version 16 (R16) repetition type B, the UCI carried by the PUCCH is transferred to the earliest actual repetition PUSCH overlapping with the PUCCH, containing more than one symbol (i.e., the repetition PUSCH obtained after segmentation based on unavailable symbols, downlink (DL) symbols, slot boundaries, etc.). All one or more repetition PUSCHs overlapping with the PUCCH must satisfy the multiplexing timeline. If a PUCCH using repetition overlaps with a PUSCH using or not using repetition, the overlapping PUSCH is discarded to ensure that the repetition transmission of the PUCCH is not interrupted.

[0135] III. Channel Transmission with Different Physical Layer Priorities

[0136] A single UE can support different service types, such as enhanced mobile broadband (eMBB) and ultra-reliable low-latency communication (URLLC). Different service types have different requirements for reliability and transmission latency. URLLC service flows may occur sporadically and intermittently; therefore, reserving separate system resources for different services incurs significant overhead, and the resources reserved for URLLC may often remain unused. To improve system resource utilization, different services can be multiplexed on the same resources. To avoid mutual interference between services, different priorities can be defined for different services, thus distinguishing which channels and information are more important when resource conflicts occur.

[0137] The physical layer priorities of PUCCH and PUSCH can be obtained through default mode, DCI dynamic indication, or RRC semi-static configuration. For example, when PUCCH carries SR, its priority is determined by the priority corresponding to the SR it carries, and the priority corresponding to each SR configuration is configured by higher layer signaling. When PUCCH carries HARQ-ACK of SPS PDSCH or HARQ-ACK of PDCCH indicating SPS resource release (i.e., SPS PDSCH release), its priority is determined by the HARQ-ACK codebook number configured by higher layer signaling for SPS PDSCH. The HARQ-ACK codebook with number 0 has low priority, and the HARQ-ACK codebook with number 1 has high priority. When PUCCH carries CSI (including periodic CSI and SP-CSI), its priority is low priority by default. When a DCI contains a priority indication field, the priority can be obtained through the priority indication field in the DCI (or PDCCH, in this invention PDCCH and DCI can be considered equivalent, as DCI is the specific format used for PDCCH transmission, and having a corresponding DCI is equivalent to having a corresponding PDCCH) of the PUCCH or PUSCH. This is a dynamic priority indication method. For example, when a PDCCH schedules a PDSCH, the priority of the PUCCH carrying the HARQ-ACK of this PDSCH can be indicated through the priority indication field; when a PDCCH schedules a PUSCH, the priority of the scheduled PUSCH can be indicated through the priority indication field. PUSCHs include PUSCHs carrying only TB, PUSCHs carrying only A-CSI, or PUSCHs carrying both TB and A-CSI. For PUSCHs carrying SP-CSI, their priority can be obtained by activating the priority indication field in the DCI of the PUSCH carrying SP-CSI. If the DCI does not contain a priority indication field, or if the higher-layer signaling does not configure a priority, the default is low priority.

[0138] Considering implementation complexity, related technologies do not support multiplexing transmission between channels with different physical layer priorities. When channels with different physical layer priorities collide—that is, multiple PUCCHs overlap in the time domain on the same carrier, or PUCCHs and PUSCHs overlap in the time domain on the same or different carriers, or multiple PUSCHs overlap in the time domain on the same carrier—the lower-priority channel is discarded, and only the higher-priority channel is transmitted. Considering that stopping the transmission of a lower-priority channel based on priority comparison requires a certain amount of additional processing time, a timeline for stopping a lower-priority channel is further defined: the time interval between the PDCCH of the corresponding higher-priority channel and the start symbol of the higher-priority channel must be no less than a predetermined time T, where time T takes into account the original processing delay (e.g., T1proce, T2proce) and the time required for stopping (d1).

[0139] In related technologies, considering the system efficiency degradation caused by always discarding low-priority channels—for example, always discarding low-priority HARQ-ACKs—leads to redundant retransmissions of the downlink transmission corresponding to low-priority HARQ-ACKs due to the inability to obtain feedback information in a timely manner. Therefore, the technology considers supporting multiplexing transmission between uplink channels with different physical layer priorities. That is, when the uplink channel carrying low-priority UCIs overlaps with the uplink channel carrying high-priority UCIs in terms of time-domain resources, the low-priority and high-priority UCIs can be transmitted on the same uplink channel according to specific rules, without discarding the low-priority UCIs. Currently, multiplexing transmission of low-priority and high-priority HARQ-ACKs in the same uplink channel is supported. Whether multiplexing transmission is supported for other UCI types, such as combinations of SRs with different priorities and combinations of SRs and HARQ-ACKs, remains undetermined. Furthermore, whether the related technologies support multiplexing transmission between channels with different priorities can be enabled or disabled based on semi-static configuration of higher-layer signaling, or it can be enabled or disabled through dynamic indication in the PDCCH. The PDCCH can be the PDCCH that schedules downlink transmission, the PDCCH that needs to perform HARQ-ACK feedback, or the PDCCH that schedules PUSCH.

[0140] In scenarios that support multiplexing transmission of channels with different priorities, there may be situations where multiple non-overlapping HARQ-ACKs of one priority (e.g., high priority) overlap with HARQ-ACKs of the same priority (e.g., low priority) in the time domain. There is no clear solution for how to transmit in such cases.

[0141] See Figure 2This application provides a transmission method, the execution subject of which is a terminal, and the specific steps include: step 201.

[0142] Step 201: Based on the first information, multiplex the uplink channel of the second priority with one of the multiple uplink channels of the first priority, or discard the uplink channel of the second priority, wherein the first information indicates whether the multiple uplink channels of the first priority support multiplexing transmission between uplink channels of different priorities.

[0143] Multiplexing transmission between uplink channels includes: when the uplink channel is PUCCH, multiplexing transmission of UCIs carried by PUCCH. Specifically, according to multiplexing rules, a PUCCH resource can be determined to transmit UCIs on multiple PUCCHs simultaneously, thus eliminating the need to transmit different UCIs carried by different PUCCHs separately. Considering the carrying capacity of PUCCH resources, when the carrying capacity is exceeded, some UCIs can be discarded. Alternatively, when the uplink channel is PUCCH and PUSCH, multiplexing transmission of UCIs carried by PUCCH and information carried by PUSCH. Specifically, a PUSCH carrying UCIs can be determined, and the UCIs on the PUCCH can be transferred to the PUSCH for transmission, thus eliminating the need to transmit on the PUCCH. Considering that some UCIs may not be able to be transmitted on the PUSCH or may conflict with UCIs already existing on the PUSCH, only some UCIs on the PUCCH can be transferred to the PUSCH for transmission, while some UCIs are discarded.

[0144] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0145] Discarding the second priority uplink channel can be understood as discarding the information carried by the second priority uplink channel and no longer transmitting the second priority uplink channel.

[0146] In one embodiment of this application, based on first information, the uplink channel of second priority is multiplexed with one of the plurality of uplink channels of first priority for transmission, or the uplink channel of second priority is discarded, including:

[0147] If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple PDCCHs corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for (terminal) to perform multiplexing transmission between uplink channels of different priorities, or, the content indicated by the indication information of each of the multiple PDCCHs is the same;

[0148] Based on the first information, one of the multiple first-priority uplink channels is determined as the target uplink channel, and the target uplink channel is multiplexed with the second-priority uplink channel, or the second-priority uplink channel is discarded.

[0149] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether (the uplink channel corresponding to the PDCCH) should be multiplexed between uplink channels of different priorities.

[0150] It is understandable that the indication information indicates whether multiplexing is used, which may refer to the UE or the channel corresponding to the PDCCH.

[0151] In one embodiment of this application, determining one uplink channel as the target uplink channel from the plurality of uplink channels with first priority based on first information includes:

[0152] When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel.

[0153] In another embodiment of this application, determining one of the plurality of uplink channels with first priority as the target uplink channel based on first information includes:

[0154] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0155] It is understandable that if it is not required that the indication information of all PDCCHs be consistent, and if multiple PDCCH indications are allowed to be multiplexed among multiple PDCCHs, a target uplink channel can be determined from multiple first-priority uplink channels using a preset first selection rule.

[0156] It is understood that, in the embodiments of this application, the method of determining the target uplink channel may include: determining the target uplink channel based on the first information, or determining the target uplink channel based on the first information in combination with other information, that is, there is no specific limitation on the method of determining the target uplink channel.

[0157] In one embodiment of this application, discarding the uplink channel of the second priority according to the first information includes:

[0158] If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, the uplink channel of the second priority is discarded.

[0159] In one embodiment of this application, based on first information, the uplink channel of second priority is multiplexed with one of the plurality of uplink channels of first priority for transmission, or the uplink channel of second priority is discarded, including:

[0160] If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling.

[0161] When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and the uplink channel of the second priority is multiplexed with the target uplink channel for transmission.

[0162] or,

[0163] If none of the multiple first-priority uplink channels in the higher-layer signaling configuration support multiplexing transmission between uplink channels of different priorities, then the second-priority uplink channel is discarded.

[0164] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0165] In one embodiment of this application, based on first information, the uplink channel of second priority is multiplexed with one of the plurality of uplink channels of first priority for transmission, or the uplink channel of second priority is discarded, including:

[0166] If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain the indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0167] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to select a target uplink channel in the first type of uplink channels and multiplex it with the uplink channel of the second priority;

[0168] If the indication information in the PDCCH corresponding to the first type of uplink channel indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to multiplex the second priority uplink channel with one of the multiple first priority uplink channels, or whether to discard the second priority uplink channel, based on the configuration of the higher-layer signaling.

[0169] In one embodiment of this application, determining whether to select a target uplink channel from the first type of uplink channels and multiplex it with an uplink channel of the second priority, based on the indication information in the PDCCH corresponding to the first type of uplink channel, includes:

[0170] Method A: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority; or

[0171] Method B: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and the target uplink channel is multiplexed with the second priority uplink channel.

[0172] In one embodiment of this application, when using mode A, if there are multiple first-type uplink channels, at most one of the multiple PDCCHs corresponding to the multiple first-type uplink channels has an indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0173] When using method B, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0174] In one embodiment of this application, determining whether to multiplex a second-priority uplink channel with one of the plurality of first-priority uplink channels, or determining whether to discard the second-priority uplink channel, based on the configuration of higher-layer signaling, includes:

[0175] If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority.

[0176] or,

[0177] If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority is discarded.

[0178] In one embodiment of this application, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0179] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0180] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0181] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0182] It is understandable that the preset first selection rule, preset second selection rule, preset third selection rule, and preset fourth selection rule may include different combinations of preset selection rule 1, preset selection rule 3, and preset selection rule 3.

[0183] For example, the preset first selection rule or the preset third selection rule may include any one or more combinations of preset selection rule 1 to preset selection rule 3; the preset second selection rule may include any one or more combinations of preset selection rule 1 and preset selection rule 2; when the second type of uplink channel is an uplink channel without a corresponding PDCCH, the preset fourth selection rule may include any one or more combinations of preset selection rule 1 and preset selection rule 2.

[0184] In one embodiment of this application, the condition for performing the step of multiplexing a second-priority uplink channel with one of the plurality of first-priority uplink channels for transmission based on first information, or discarding the second-priority uplink channel, further includes at least one of the following:

[0185] (1) The terminal does not support parallel transmission between uplink channels with different priorities (on the same or different carriers);

[0186] (2) The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource;

[0187] When, according to existing multiplexing rules, it is determined that multiple uplink channels with first priority need to be multiplexed and transmitted with an uplink channel with second priority on the same uplink channel resource (i.e., according to the multiplexing and transmission rules of the prior art, the channel with the earliest start symbol is selected from the multiple channels to be processed as the first uplink channel, then all uplink channels overlapping with the first uplink channel are determined as the second uplink channel set, and finally a PUCCH resource needs to be determined to carry the UCI carried by all channels in the first uplink channel and the second uplink channel set, that is, multiple second uplink channels also need to be multiplexed and transmitted on the same uplink channel resource), the process of the embodiment of this application is used;

[0188] (3) Among the plurality of first priority uplink channels and one second priority uplink channel, the start time of the second priority uplink channel is the earliest.

[0189] (4) The first priority is high priority and the second priority is low priority; or, the first priority is low priority and the second priority is high priority;

[0190] (5) Both the uplink channel of the first priority and the uplink channel of the second priority carry HARQ-ACK;

[0191] (6) The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0192] That is, the time interval required for multiplexing transmission is satisfied between the end position of the PDCCH and the start position of the earliest channel among multiple uplink channels with first priority and one uplink channel with second priority; or the PDCCH corresponding to some uplink channels in the uplink channels satisfies the multiplexing timeline, for example, indicating that multiplexing is supported and the multiplexing timeline is satisfied, indicating that multiplexing is not supported and the multiplexing timeline is not satisfied (but the timeline for canceling LP needs to be satisfied); or, the PDCCH corresponding to the uplink channel with first priority only needs to satisfy the timeline with the corresponding uplink channel, and does not need to satisfy the timeline based on the start point of the uplink channel with second priority.

[0193] The PDCCH corresponding to the uplink channel is either the PDCCH corresponding to the downlink transmission that requires HARQ-ACK feedback or the PDCCH of the scheduling PUSCH. The PDCCH corresponding to the downlink transmission that requires HARQ-ACK feedback includes the PDCCH of the scheduling PDSCH and the PDCCH that itself requires HARQ-ACK feedback.

[0194] In one embodiment of this application, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

[0195] It is understood that, in this embodiment of the application, regardless of whether the uplink channel with the second priority has a corresponding PDCCH containing the indication information, if there is a PDCCH, the indication information in the PDCCH is invalid or the indication content of the indication information in the PDCCH is consistent with the execution result determined by the above method; for example, if it is determined by the above method to multiplex transmission with a target uplink channel with the first priority, the indication information in the PDCCH corresponding to the uplink channel with the second priority should indicate multiplexing; for example, if it is determined by the above method to discard the uplink channel with the second priority, the indication information in the PDCCH corresponding to the uplink channel with the second priority should indicate non-multiplexing.

[0196] In this embodiment, when there is temporal resource overlap between multiple uplink channels with first priority and one uplink channel with second priority, and no temporal resource overlap between multiple uplink channels with first priority, the transmission method is determined based on the judgment result of whether HARQ-ACK multiplexing transmission with different priorities is supported. This ensures that one uplink channel can be selected from multiple uplink channels with low priority and multiplexed with an uplink channel with second priority, avoiding the impact on latency and transmission performance caused by reusing two non-overlapping uplink channels with first priority due to the reuse of existing multiplexing rules.

[0197] See Figure 3 This application provides a transmission method, which can be executed by a network-side device. The specific steps include: step 301.

[0198] Step 301: According to the first information, receive multiplexed transmission on one of the multiple first-priority uplink channels and the second-priority uplink channel, or do not receive the second-priority uplink channel, wherein the first information indicates whether the multiple first-priority uplink channels support multiplexed transmission between uplink channels of different priorities.

[0199] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0200] In one embodiment of this application, according to first information, receiving multiplexed transmission on an uplink channel of second priority and one of the plurality of uplink channels of first priority, or not receiving the uplink channel of second priority, includes:

[0201] If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple PDCCHs corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the multiple PDCCHs is the same;

[0202] Based on the first information, determine one of the multiple first-priority uplink channels as the target uplink channel, and receive multiplexed transmission on the second-priority uplink channel and the target uplink channel, or do not receive the second-priority uplink channel.

[0203] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0204] In one embodiment of this application, determining one uplink channel as the target uplink channel from the plurality of uplink channels with first priority based on first information includes:

[0205] When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel.

[0206] or,

[0207] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0208] In one embodiment of this application, according to first information, not receiving uplink channels of the second priority includes:

[0209] If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, then the uplink channel of the second priority will not be received.

[0210] In one embodiment of this application, according to first information, receiving multiplexed transmission on an uplink channel of second priority and one of the plurality of uplink channels of first priority, or not receiving the uplink channel of second priority, includes:

[0211] If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling.

[0212] When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and multiplexing transmission between the uplink channel of the second priority and one of the uplink channels of the multiple first priority is received.

[0213] or,

[0214] If the higher-layer signaling configuration does not support multiplexing transmission between uplink channels of different priorities, the uplink channel of the second priority will not be received.

[0215] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0216] In one embodiment of this application, according to first information, receiving multiplexed transmission on an uplink channel of second priority and one of the plurality of uplink channels of first priority, or not receiving the uplink channel of second priority, includes:

[0217] If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0218] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to receive multiplexed transmission on one of the multiple first priority uplink channels and the second priority uplink channel;

[0219] If the indication information in the first type of uplink channel PDCCH indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to receive multiplexing transmission between the second priority uplink channel and one of the plurality of first priority uplink channels, or whether to receive the second priority uplink channel, based on the configuration of the higher-layer signaling.

[0220] In one embodiment of this application, determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels and one of the indication information in the first type of uplink channel PDCCH includes:

[0221] Method C: When the indication information in the first type of uplink channel PDCCH indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received; or

[0222] Method D: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

[0223] In one embodiment of this application, when using method C, if there are multiple first-type uplink channels, at most one of the PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0224] When using mode D, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0225] In one embodiment of this application, determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels and the second-priority uplink channel, or whether to receive transmission on the second-priority uplink channel, based on the higher-layer signaling, includes:

[0226] If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

[0227] or,

[0228] If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority will not be received.

[0229] In one embodiment of this application, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0230] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0231] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0232] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0233] In one embodiment of this application, the conditions for performing the step of receiving multiplexed transmission on one of the plurality of first-priority uplink channels and a second-priority uplink channel according to first information, or not receiving the second-priority uplink channel, include:

[0234] (1) Parallel transmission between uplink channels with different priorities (on the same or different carriers) is not supported;

[0235] (2) The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource;

[0236] When, according to existing multiplexing rules, it is determined that multiple uplink channels with first priority need to be multiplexed and transmitted with an uplink channel with second priority on the same uplink channel resource (i.e., according to the multiplexing and transmission rules of the prior art, the channel with the earliest start symbol is selected from the multiple channels to be processed as the first uplink channel, then all uplink channels overlapping with the first uplink channel are determined as the second uplink channel set, and finally a PUCCH resource needs to be determined to carry the UCI carried by all channels in the first uplink channel and the second uplink channel set, that is, multiple second uplink channels also need to be multiplexed and transmitted on the same uplink channel resource), the process of the embodiment of this application is used;

[0237] (3) Among the plurality of first priority uplink channels and one second priority uplink channel, the start time of the second priority uplink channel is the earliest.

[0238] (4) The first priority is high priority and the second priority is low priority; or, the first priority is low priority and the second priority is high priority;

[0239] (5) Both the uplink channel of the first priority and the uplink channel of the second priority carry HARQ-ACK;

[0240] (6) The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0241] That is, the time interval required for multiplexing transmission is satisfied between the end position of the PDCCH and the start position of the earliest channel among multiple uplink channels with first priority and one uplink channel with second priority; or the PDCCH corresponding to some uplink channels in the uplink channels satisfies the multiplexing timeline, for example, indicating that multiplexing is supported and the multiplexing timeline is satisfied, indicating that multiplexing is not supported and the multiplexing timeline is not satisfied (but the timeline for canceling LP needs to be satisfied); or, the PDCCH corresponding to the uplink channel with first priority only needs to satisfy the timeline with the corresponding uplink channel, and does not need to satisfy the timeline based on the start point of the uplink channel with second priority.

[0242] The PDCCH corresponding to the uplink channel is either the PDCCH corresponding to the downlink transmission that requires HARQ-ACK feedback or the PDCCH of the scheduling PUSCH. The PDCCH corresponding to the downlink transmission that requires HARQ-ACK feedback includes the PDCCH of the scheduling PDSCH and the PDCCH that itself requires HARQ-ACK feedback.

[0243] In one embodiment of this application, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

[0244] It is understood that, in this embodiment of the application, regardless of whether the uplink channel with the second priority has a corresponding PDCCH containing the indication information, if there is a PDCCH, the indication information in the PDCCH is invalid or the indication content of the indication information in the PDCCH is consistent with the execution result determined by the above method; for example, if it is determined by the above method to multiplex transmission with a target uplink channel with the first priority, the indication information in the PDCCH corresponding to the uplink channel with the second priority should indicate multiplexing; for example, if it is determined by the above method to discard the uplink channel with the second priority, the indication information in the PDCCH corresponding to the uplink channel with the second priority should indicate non-multiplexing.

[0245] In this embodiment, when there is temporal resource overlap between multiple uplink channels with first priority and one uplink channel with second priority, and no temporal resource overlap between multiple uplink channels with first priority, the transmission method is determined based on the judgment result of whether HARQ-ACK multiplexing transmission with different priorities is supported. This ensures that one uplink channel can be selected from multiple uplink channels with low priority and multiplexed with an uplink channel with second priority, avoiding the impact on latency and transmission performance caused by reusing two non-overlapping uplink channels with first priority due to the reuse of existing multiplexing rules.

[0246] In this embodiment of the application, when there is temporal resource overlap between multiple uplink channels with first priority and one uplink channel with second priority, and there is no temporal resource overlap between multiple uplink channels with first priority, if the multiple uplink channels with first priority support multiplexing transmission between uplink channels with different priorities, then the uplink channel with second priority is multiplexed with one of the uplink channels with first priority; and / or, if the multiple uplink channels with first priority do not support multiplexing transmission between uplink channels with different priorities, then the information carried by the uplink channel with second priority is discarded.

[0247] Specifically, based on the determination of whether multiple uplink channels with first priority support multiplexing transmission between uplink channels with different priorities, the uplink channel with second priority is multiplexed with one of the uplink channels with first priority, or the uplink channel with second priority is discarded, which can be done according to at least one of the following rules 1, 2, and 3:

[0248] Rule 1: If the multiple uplink channels with first priority are all of type 1 uplink channels, the type 1 uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the first information indicates whether to perform multiplexing transmission between uplink channels with different priorities.

[0249] If the indication information indicates multiplexing transmission between uplink channels with different priorities (i.e., the indication information indicates multiplexing), one of the multiple uplink channels with the first priority is selected as the target uplink channel and multiplexed with the uplink channel with the second priority, or

[0250] If the indication information indicates that multiplexing transmission between uplink channels with different priorities is not to be performed (i.e., the indication information indicates no multiplexing), then the uplink channel with the second priority is discarded.

[0251] Specifically, this can correspond to either method 1-1 or method 1-2 as follows:

[0252] Method 1-1: Among the indication information in the multiple PDCCHs corresponding to the multiple uplink channels with first priority, at most one indication information indicates multiplexing, and the other indication information indicates non-multiplexing; when one indication information indicates multiplexing, the uplink channel with first priority corresponding to the PDCCH with the indication of multiplexing is used as the target uplink channel and multiplexed with the uplink channel with second priority; when all indication information indicates non-multiplexing, the uplink channel with second priority is discarded.

[0253] Method 1-2: The indication content of the indication information in the multiple PDCCHs corresponding to the multiple uplink channels with the first priority is consistent.

[0254] When multiple PDCCHs indicate multiplexing, a target uplink channel is determined from the multiple uplink channels with first priority according to any one or combination of preset selection rules 1-3, and multiplexed with the uplink channel with second priority for transmission.

[0255] When multiple PDCCHs indicate that the channel is not to be reused, the uplink channel with the second priority is discarded.

[0256] Multiplexing transmission refers to the following: When both uplink channels are PUCCH, the UCIs carried on the two uplink channels are transmitted on the same uplink channel. That is, according to the multiplexing rules, a PUCCH resource is found that can carry the UCIs on the two PUCCHs at the same time. In this case, due to insufficient carrying capacity, some UCIs may be dropped. And / or, when one uplink channel is PUCCH and the other is PUSCH, the UCIs on the PUCCH are transferred to the PUSCH for transmission, so that the PUCCH is not transmitted. In this case, some UCIs on the PUCCH may be dropped because of conflicts between some UCIs on the PUCCH (such as P-CSI, SP-CSI) and the UCIs originally existing on the PUSCH (such as SP-CSI, A-CSI), or because some UCIs on the PUCCH (such as SR) cannot be transmitted on the PUSCH.

[0257] Rule 2: If all the multiple uplink channels with first priority are type II uplink channels, where type II uplink channels are uplink channels without corresponding PDCCHs, and type II uplink channels are uplink channels with corresponding PDCCHs, and the PDCCHs do not contain indication information indicating whether multiplexing transmission between uplink channels with different priorities is performed, then:

[0258] (a) When the higher-layer signaling configuration supports multiplexing transmission between uplink channels with different priorities, a target channel is determined from the plurality of uplink channels with first priority according to any one or combination of preset selection rule 1 or rule 2, and multiplexed transmission is performed with the uplink channel with second priority.

[0259] (b) When the higher-layer signaling configuration does not support multiplexing transmission between uplink channels with different priorities, the uplink channel with the second priority is discarded;

[0260] Rule 3: If the plurality of uplink channels with first priority include a first type of uplink channel and a second type of uplink channel, and the first type of uplink channel has a corresponding PDCCH and the PDCCH contains indication information indicating whether multiplexing transmission between uplink channels with different priorities is performed, and the second type of uplink channel does not have a corresponding PDCCH or has a corresponding PDCCH but the PDCCH does not contain the indication information, then:

[0261] (a) First, determine whether to select a target uplink channel in the first type of uplink channel according to the indication information in the PDCCH, and perform multiplexing transmission with the uplink channel with the second priority; that is, at this time, it does not matter whether the higher layer signaling is configured to support multiplexing transmission between uplink channels with different priorities; specifically including the following methods 3-1 or 3-2.

[0262] Method 3-1: When there is an indication multiplexing in the indication information in the PDCCH, the uplink channel with the first priority corresponding to the PDCCH with the indication multiplexing is used as the target uplink channel and multiplexed with the uplink channel with the second priority for transmission.

[0263] Furthermore, when there are multiple Type I uplink channels, the indication information in at most one PDCCH of the multiple Type I uplink channels indicates multiplexing, and the other indication information indicates non-multiplexing;

[0264] Method 3-2: When the indication information in the PDCCH indicates multiplexing, an uplink channel is selected from the first type of uplink channels as the target uplink channel according to the preset selection rules, and multiplexed with the uplink channel with the second priority for transmission;

[0265] Furthermore, when multiple Type I uplink channels exist, the indication content of the indication information in the PDCCH corresponding to the multiple Type I uplink channels is consistent;

[0266] (b) When all indications in the PDCCH indicate no multiplexing, determine whether the uplink channel with the second priority should be multiplexed with one of the uplink channels with a lower priority, based on whether the higher-layer signaling configures a second type of uplink channel to support multiplexing transmission between uplink channels with different priorities; specifically:

[0267] If the higher-layer signaling is configured to support multiplexing transmission between uplink channels with different priorities in the second type of uplink channel, then a target uplink channel is determined in the second type of uplink channel according to the preset selection rules, and multiplexing transmission is performed with the uplink channel with the second priority.

[0268] If the higher-layer signaling configuration specifies that the second type of uplink channel does not support multiplexing transmission between uplink channels with different priorities, then the uplink channel with the second priority is discarded.

[0269] The preset selection rules mentioned in Rule 1, Rule 2, and Rule 3 above are one or a combination of the following:

[0270] Preset selection rule 1: Select the channel with the earliest starting position among the multiple uplink channels with first priority;

[0271] Preset selection rule 2: Select the channel carrying HARQ-ACK from the plurality of uplink channels with first priority;

[0272] Preset selection rule 3: Select the channel with the corresponding PDCCH from the multiple uplink channels with the first priority.

[0273] Example 1 (corresponding to Rule 1):

[0274] The overlap between PUCCHs carrying HARQ-ACKs with different priorities is considered. Assuming the first priority is high and the second priority is low, the high-priority HARQ-ACK uses a sub-slot-based feedback method, and the low-priority HARQ-ACK uses a slot-based feedback method, then a low-priority PUCCH can overlap with two otherwise non-overlapping high-priority PUCCHs. In the diagram, LP represents low priority, HP represents high priority, and AN is an abbreviation for HARQ-ACK. According to rule 1:

[0275] Case 1 (Method 1-1, when reuse is supported): such as Figure 4 As shown.

[0276] On the base station side: When scheduling HARQ-ACK feedback, if it is determined that LP AN and the first HP AN (i.e., HP AN1 in the first sub-time slot) will be multiplexed, then for PDCCH1 corresponding to HP AN1 (i.e., the PDCCH that needs to schedule AN feedback in the first sub-time slot, or the PDCCH that itself needs to perform AN feedback in the first sub-time slot), the base station sets the multiplexing indication information field (i.e., indicating whether multiplexing between uplink channels with different priorities is supported) in PDCCH1 to indicate that multiplexing is supported, and sets the multiplexing indication information field in PDCCH2 corresponding to HP AN2 to indicate that multiplexing is not supported; according to the indication information in PDCCH, the base station simultaneously receives LP AN and HP AN1 on a PUCCH resource determined according to the multiplexing rules for simultaneous transmission of LP AN and HP AN1 in the first sub-time slot, and only receives HP AN2 in the second sub-time slot;

[0277] Terminal side: Based on the indication content of the multiplexing indication information field in the PDCCH corresponding to HP AN1 and HP AN2 respectively, it is determined that LP AN and HP AN1 in the first HP AN, i.e. the first sub-time slot, will be multiplexed for transmission. Then, in the first sub-time slot, the terminal determines a PUCCH resource for simultaneous transmission of LP AN and HP AN1 according to the multiplexing rules, and transmits LP AN and HP AN1 on this PUCCH simultaneously, so as not to transmit LP AN on the LP channel. In the second sub-time slot, only HP AN2 is transmitted.

[0278] In the above method, the base station ensures that the terminal can select a unique HP AN and LP AN for multiplexing by reasonably setting the multiplexing indication information in the PDCCH. This avoids the situation where, according to the existing multiplexing rules, the LP AN overlaps with two HP ANs at the same time, and the LP AN starts earlier. When reusing the existing multiplexing rules, the two HP ANs and LP AN need to be transmitted together on the same uplink channel resource, resulting in the multiplexing transmission of multiple HP ANs that were not originally overlapping.

[0279] It should be noted that if the LP AN also has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal can agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0280] Case 2 (Methods 1-2, when reuse is supported): such as Figure 5 As shown.

[0281] On the base station side: When scheduling HARQ-ACK feedback, if it is determined that LP AN can be multiplexed with HP AN for transmission, then for PDCCH1 corresponding to HP AN1 and PDCCH2 corresponding to HP AN2, the base station sets the multiplexing indication information field in PDCCH to indicate support for multiplexing. Assuming that the preset selection rule is to select the first channel in HP AN for multiplexing with LP AN, then the base station will simultaneously receive LP AN and HP AN1 on a PUCCH resource determined according to the multiplexing rule in the first sub-time slot. In the second sub-time slot, the base station will only receive HP AN2.

[0282] Terminal side: Based on the indication content of the multiplexing indication information field in the PDCCH corresponding to HP AN1 and HP AN2 respectively, it is determined that LP AN can be multiplexed with HP AN for transmission. According to the same selection rule as the base station side, the first channel in HP AN is selected for multiplexing with LP AN for transmission. Then, in the first sub-time slot, the terminal determines a PUCCH resource for simultaneous transmission of LP AN and HP AN1 according to the multiplexing rule. LP AN and HP AN1 are transmitted simultaneously on this PUCCH, so that LP AN is not transmitted on the LP channel. In the second sub-time slot, only HP AN2 is transmitted.

[0283] In the above method, the base station enables multiplexing through the multiplexing indication information in the PDCCH, and further ensures that the terminal can select a unique HP AN and LP AN from multiple HP ANs for multiplexing according to the preset selection rules. This avoids the situation where, according to the existing multiplexing rules, the LP AN overlaps with two HP ANs at the same time, and the LP AN starts earlier. When reusing the existing multiplexing rules, it is necessary to put the two HP ANs and LP AN together on the same uplink channel resource for transmission, resulting in the multiplexing transmission of multiple HP ANs that were not originally overlapping.

[0284] It should be noted that if the LP AN also has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal can agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0285] Case 3 (Method 1-1 or Method 1-2, indication not reused): such as Figure 6 As shown

[0286] On the base station side: When scheduling HARQ-ACK feedback, if it is determined that the LP AN is not multiplexed with any HP AN, then for PDCCH1 corresponding to HP AN1 and PDCCH2 corresponding to HP AN2, the base station will set the multiplexing indication information field in the PDCCH to indicate that multiplexing is not supported; according to the indication information in the PDCCH, the base station can receive HP AN1 and HP AN2 in the first sub-time slot and the second sub-time slot respectively, and will not receive the LP AN;

[0287] Terminal side: Based on the indication content of the multiplexing indication information field in the PDCCH corresponding to HP AN1 and HP AN2 respectively, if it is determined that LP AN is not multiplexed with any HP AN, then HP AN1 and HP AN2 can be sent in the first sub-time slot and the second sub-time slot respectively, and LP AN is not sent.

[0288] It should be noted that if the LP AN also has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate no multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal can agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0289] In cases 1-3 of this embodiment, both PDCCH1 and PDCCH2 can satisfy the multiplexing timeline, that is, the two HPANs and LP AN are regarded as an overlapping uplink channel group. The PDCCH corresponding to any uplink channel in the uplink channel group needs to satisfy a predetermined time interval between the end time of the PDCCH and the start time of the first symbol of the channel with the earliest start position in the uplink channel group. That is, both PDCCH1 and PDCCH2 need to satisfy the multiplexing timeline based on the start of the LP AN. Alternatively, only PDCCH1 can satisfy the multiplexing timeline based on the start of the LP AN, while PDCCH2 does not need to. PDCCH2 can additionally consider satisfying the cancellation timeline of the LP AN (when the PDCCH of the first HP AN is lost, there is enough time to stop the LP AN before the start of HPAN2. If the first HP AN packet loss problem is not considered, then PDCCH2 does not need to consider satisfying the cancellation timeline).

[0290] Example 2 (corresponding to Rule 2): Replace the HARQ-ACK with a corresponding PDCCH in Example 1 with a HARQ-ACK without a corresponding PDCCH or a HARQ-ACK with a corresponding PDCCH but without a multiplexing indicator field in the PDCCH, and so on, similar to Example 1; according to Rule 2:

[0291] Case 1: such as Figure 7 As shown.

[0292] On the base station side: The base station pre-configures the terminal with support for multiplexing transmission between uplink channels with different priorities through higher-layer signaling. This means that both HP ANs support multiplexing transmission with LP AN. A target uplink channel needs to be determined from multiple HP ANs according to a preset selection rule. For example, if the first HP AN1 is determined as the target uplink channel, then the first HP AN1 is determined to be multiplexed with LP AN. In the first sub-time slot, the base station simultaneously receives LP AN and HP AN1 on a PUCCH resource determined according to the multiplexing rule for simultaneous transmission of LP AN and HP AN1. In the second sub-time slot, the base station only receives HP AN2.

[0293] On the terminal side: Based on the received higher-layer signaling, if it is determined that the configuration supports multiplexing transmission between uplink channels with different priorities, it means that both HP ANs support multiplexing transmission with LP AN. According to the preset selection rules consistent with the base station side, a target is determined from multiple HP ANs, that is, the first HP AN1 is determined as the target uplink channel. Then, the first HP AN1 is determined to be multiplexed with LP AN. In the first sub-time slot, the terminal determines a PUCCH resource for simultaneous transmission of LP AN and HP AN1 according to the multiplexing rules. On this PUCCH, LP AN and HP AN1 are transmitted simultaneously, so that LP AN is no longer transmitted on the LP channel. In the second sub-time slot, only HP AN2 is transmitted.

[0294] In the above method, by using preset selection rules, it is ensured that when multiple HP ANs support multiplexing with LP AN, the terminal and base station can select a unique HP AN and LP AN for multiplexing. This avoids the situation where, according to the existing multiplexing rules, because the LP AN overlaps with two HP ANs at the same time and the LP AN starts earlier, when reusing the existing multiplexing rules, the two HP ANs and LP ANs need to be transmitted together on the same uplink channel resource, resulting in the multiplexing transmission of multiple HP ANs that were not originally overlapping.

[0295] It should be noted that if the LP AN has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0296] Case 2: Figure 8 As shown.

[0297] On the base station side: The base station pre-configures the terminal via higher-layer signaling to not support multiplexing transmission between uplink channels with different priorities, which means that neither HP AN supports multiplexing transmission with LP AN, so it is determined that LP AN is discarded; the base station receives HP AN1 and HP AN2 in the first sub-time slot and the second sub-time slot respectively, and does not receive LP AN.

[0298] On the terminal side: Based on the received higher-layer signaling, it is determined that the configuration does not support multiplexing transmission between uplink channels with different priorities, which means that neither HP AN supports multiplexing transmission with LP AN. Therefore, it is determined to discard LP AN; the terminal transmits HP AN1 and HP AN2 in the first sub-time slot and the second sub-time slot respectively, and does not transmit LP AN.

[0299] It should be noted that if the LP AN has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate that multiplexing is not allowed in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal can agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0300] Example 3 (corresponding to Rule 3): Replace the second HARQ-ACK with a corresponding PDCCH in Example 1 with a HARQ-ACK without a corresponding PDCCH or a HARQ-ACK with a corresponding PDCCH but without a multiplexing indicator field in the PDCCH, and so on, similar to Example 1; according to Rule 3:

[0301] Case 1: such as Figure 9 As shown.

[0302] On the base station side: The base station pre-configures the terminal with support for multiplexing transmission between uplink channels with different priorities through higher-layer signaling. This means that the second HP AN2 supports multiplexing transmission with LP AN, while whether the first HP AN1 supports multiplexing with LP AN depends on the multiplexing indication field in its corresponding PDCCH. Assuming the base station decides to multiplex LPAN with the first HP AN1, then according to the principle of priority of the multiplexing indication field in PDCCH, it determines that LP AN and HP AN1 are multiplexed. The base station sets the multiplexing indication field in PDCCH1 corresponding to HP AN1 to indicate support for multiplexing. In the first sub-time slot, the base station simultaneously receives LPAN and HP AN1 on a PUCCH resource determined according to the multiplexing rules for simultaneous transmission of LP AN and HP AN1. In the second sub-time slot, the base station only receives HP AN2.

[0303] On the terminal side: Based on the received higher-layer signaling, it is determined that the configuration supports multiplexing transmission between uplink channels with different priorities. This means that the second HP AN2 supports multiplexing transmission with LP AN. However, according to the principle of priority of the multiplexing indication field of PDCCH, it is necessary to first determine whether multiplexing of HP AN1 and LP AN is supported based on the multiplexing indication field in PDCCH1 corresponding to HP AN1. If it is supported, the configuration of higher layers does not need to be considered. Therefore, the terminal determines that LP AN and the first HP AN1 are multiplexed. In the first sub-time slot, the terminal determines a PUCCH resource for simultaneous transmission of LP AN and HP AN1 according to the multiplexing rules. LP AN and HP AN1 are transmitted simultaneously on this PUCCH, so that LP AN is not transmitted on the LP channel. In the second sub-time slot, only HP AN2 is transmitted.

[0304] In the above method, by combining the multiplexing indication field of PDCCH with the configuration of higher layers, it is ensured that when multiple HPANs support multiplexing with LP AN, the terminal and the base station can select a unique HP AN and LP AN for multiplexing among multiple HP ANs. This avoids the situation where, according to the existing multiplexing rules, because the LP AN overlaps with two HP ANs at the same time and the LP AN starts earlier, when reusing the existing multiplexing rules, it is necessary to put the two HP ANs and LP AN together on the same uplink channel resource for transmission, resulting in the multiplexing transmission of multiple HP ANs that were originally not overlapping.

[0305] It should be noted that if the LP AN has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0306] It should be noted that if there are multiple HP ANs with PDCCHs containing multiplexing indication fields, only one PDCCH among the multiple PDCCHs indicates multiplexing. In the above method, the HP AN corresponding to this PDCCH is determined as the target uplink channel and multiplexed with the LPAN for transmission. Alternatively, if the multiplexing indication fields in multiple PDCCHs all indicate multiplexing, then an HP AN is selected as the target uplink channel according to the preset selection rules and multiplexed with the LP AN for transmission.

[0307] Case 2: Figure 10 As shown.

[0308] On the base station side: The base station pre-configures the terminal with support for multiplexing transmission between uplink channels with different priorities through higher-layer signaling. This means that the second HP AN2 supports multiplexing transmission with the LP AN. Whether the first HP AN1 supports multiplexing with the LP AN depends on the multiplexing indication field in its corresponding PDCCH. Assuming the base station decides that the LPAN should not be multiplexed with the first HP AN1, the base station sets the multiplexing indication field in the PDCCH1 corresponding to HP AN1 to indicate that multiplexing is not supported. Under the action of the multiplexing indication field in the priority PDCCH, when all multiplexing indication fields indicate no multiplexing, one HP AN is selected from those without PDCCH indication of multiplexing to be multiplexed with the LP AN, i.e., HP AN2 is determined to be multiplexed with the LP AN. The base station only receives HP AN1 in the first sub-time slot, and simultaneously receives LP AN and HP AN2 on a PUCCH resource determined according to the multiplexing rules for simultaneous transmission of LPAN and HP AN2 in the second sub-time slot.

[0309] On the terminal side: Based on the received higher-layer signaling, it is determined that the configuration supports multiplexing transmission between uplink channels with different priorities. This means that the second HP AN2 supports multiplexing transmission with LP AN. However, according to the principle of priority of the multiplexing indication field of PDCCH, it is necessary to first determine whether multiplexing of HP AN1 and LP AN is supported based on the multiplexing indication field in PDCCH1 corresponding to HP AN1. Since the indication is not supported, the terminal determines that LP AN and the second HP AN2 are multiplexed. The terminal only transmits HP AN1 in the first sub-time slot, and determines a PUCCH resource for simultaneous transmission of LP AN and HP AN2 according to the multiplexing rules in the second sub-time slot. LP AN and HP AN2 are transmitted simultaneously on this PUCCH, so that LP AN is no longer transmitted on the LP channel.

[0310] In the above method, by combining the multiplexing indication field of PDCCH with the configuration of higher layers, it is ensured that the terminal and the base station can select a unique HP AN and LP AN for multiplexing among multiple HP ANs. This avoids the situation where, according to the existing multiplexing rules, because the LP AN overlaps with two HP ANs at the same time and the LP AN starts earlier, when reusing the existing multiplexing rules, it is necessary to put the two HP ANs and LP AN together on the same uplink channel resource for transmission, resulting in the multiplexing transmission of multiple HP ANs that were originally not overlapping.

[0311] It should be noted that if the LP AN has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0312] It should be noted that if there are multiple HP ANs with PDCCHs containing multiplexing indication fields, the channel to be multiplexed with the LP AN will only be selected from the second type of uplink channels if all PDCCHs in the multiple PDCCHs indicate that they are not multiplexed. If there are multiple second type uplink channels, an HP AN will be selected as the target uplink channel according to the preset selection rules and multiplexed with the LP AN for transmission.

[0313] Scenario 3: such as Figure 11 As shown.

[0314] On the base station side: The base station pre-configures the terminal via higher-layer signaling to not support multiplexing transmission between uplink channels with different priorities. This means that neither HP AN supports multiplexing transmission with LP AN. In this case, even if a multiplexing indication field exists in the PDCCH, the base station should, in principle, set this indication field to indicate that multiplexing is not supported or specify that this multiplexing indication field should be ignored. Therefore, it is determined that LP AN is discarded. The base station receives HP AN1 and HP AN2 in the first and second sub-time slots respectively, and does not receive LP AN.

[0315] On the terminal side: Based on the received higher-layer signaling, it is determined that the configuration does not support multiplexing transmission between uplink channels with different priorities, which means that neither HP AN supports multiplexing transmission with LP AN. Therefore, it is determined to discard LP AN; the terminal transmits HP AN1 and HP AN2 in the first sub-time slot and the second sub-time slot respectively, and does not transmit LP AN.

[0316] It should be noted that if the LP AN has a corresponding PDCCH and the PDCCH contains a multiplexing indication information field, then the multiplexing indication information field needs to indicate no multiplexing in order to be consistent with the indication result of HP AN1 and avoid contradictions; or the base station can arbitrarily set this indication information field, and the base station and the terminal can agree in advance to ignore the indication content of the multiplexing indication information field in the PDCCH corresponding to the LP AN, and only take the indication content of the multiplexing indication information field in the PDCCH corresponding to the HP AN as the standard.

[0317] See Figure 12 This application provides a transmission device applied to a terminal. The device 1200 includes:

[0318] The first processing module 1201 is configured to, according to the first information, multiplex the uplink channel of the second priority with one of the multiple uplink channels of the first priority, or discard the uplink channel of the second priority, wherein the first information indicates whether the multiple uplink channels of the first priority support multiplexing transmission between uplink channels of different priorities.

[0319] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0320] In one embodiment of this application, the first processing module 1201 is further configured to: if all of the plurality of first priority uplink channels are first type uplink channels, obtain the first information according to the indication information in the plurality of PDCCHs corresponding to the plurality of first priority uplink channels; wherein, at most one of the plurality of PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the indication information of each of the plurality of PDCCHs indicates the same content;

[0321] The first processing module 1201 is further configured to: determine one of the multiple uplink channels of first priority as the target uplink channel according to the first information, and multiplex the target uplink channel with the uplink channel of second priority, or discard the uplink channel of second priority.

[0322] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0323] In one embodiment of this application, the first processing module 1201 is further configured to: when at most one of the plurality of PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, and when the indication information in one of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, determine the uplink channel of the first priority corresponding to the one PDCCH as the target uplink channel;

[0324] or,

[0325] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0326] In one embodiment of this application, the first processing module 1201 is further configured to: discard the uplink channel of the second priority when the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported.

[0327] In one embodiment of this application, the first processing module 1201 is further configured to: if the plurality of first priority uplink channels are all second type uplink channels, then obtain the first information according to the configuration of higher layer signaling;

[0328] The first processing module 1201 is further configured to: when the higher-layer signaling configuration allows all of the multiple first-priority uplink channels to support multiplexing transmission between uplink channels of different priorities, determine a target uplink channel from the multiple first-priority uplink channels according to a preset second selection rule, and multiplex the second-priority uplink channel with the target uplink channel for transmission; or, when the higher-layer signaling configuration allows none of the multiple first-priority uplink channels to support multiplexing transmission between uplink channels of different priorities, discard the second-priority uplink channel;

[0329] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0330] In one embodiment of this application, the first processing module 1201 is further configured to: if the plurality of first-priority uplink channels include a first type of uplink channel and a second type of uplink channel, wherein the first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second type of uplink channel is an uplink channel without a corresponding PDCCH, or the second type of uplink channel is an uplink channel with a corresponding PDCCH but the PDCCH does not contain the indication information, or the second type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, wherein the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0331] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to select a target uplink channel in the first type of uplink channels and multiplex it with the uplink channel of the second priority;

[0332] If the indication information in the PDCCH corresponding to the first type of uplink channel indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to multiplex the second priority uplink channel with one of the multiple first priority uplink channels, or whether to discard the second priority uplink channel, based on the configuration of the higher-layer signaling.

[0333] In one embodiment of this application, the first processing module 1201 is further configured to:

[0334] Method A: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority; or

[0335] Method B: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and the target uplink channel is multiplexed with the second priority uplink channel.

[0336] In one embodiment of this application, when using method A, if there are multiple first-type uplink channels, at most one of the multiple PDCCHs corresponding to the multiple first-type uplink channels has an indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0337] When using method B, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0338] In one embodiment of this application, the first processing module 1201 is further configured to:

[0339] If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority; or, if the higher-layer signaling configuration allows the second type of uplink channel to not support multiplexing transmission between channels of different priorities, then the uplink channel of the second priority is discarded.

[0340] In one embodiment of this application, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0341] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0342] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0343] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0344] In one embodiment of this application, the condition for performing the step of multiplexing a second-priority uplink channel with one of the plurality of first-priority uplink channels for transmission, or discarding the second-priority uplink channel, based on first information, further includes:

[0345] The terminal does not support parallel transmission between uplink channels with different priorities;

[0346] or,

[0347] The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource.

[0348] Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest.

[0349] or,

[0350] The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority.

[0351] or,

[0352] Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or,

[0353] The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0354] In one embodiment of this application, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

[0355] In the embodiments of this application, the device is capable of implementing this application. Figure 2 The various processes implemented in the method embodiments shown, and the same beneficial effects achieved, will not be described again here to avoid repetition.

[0356] See Figure 13 This application provides a transmission device applied to a network-side device. The device 1300 includes:

[0357] The second processing module 1301 is configured to, according to the first information, receive multiplexed transmission on one of the multiple first-priority uplink channels and the second-priority uplink channel, or not receive the second-priority uplink channel, wherein the first information indicates whether the multiple first-priority uplink channels support multiplexed transmission between uplink channels of different priorities.

[0358] Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

[0359] In one embodiment of this application, the second processing module 1301 is further configured to: if all of the plurality of first-priority uplink channels are first-type uplink channels, obtain the first information according to the indication information in the plurality of PDCCHs corresponding to the plurality of first-priority uplink channels; wherein, at most one of the plurality of PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the plurality of PDCCHs is consistent;

[0360] The second processing module 1301 is further configured to: determine one of the plurality of first priority uplink channels as the target uplink channel according to the first information, and receive multiplexed transmission on the second priority uplink channel and the target uplink channel, or not receive the second priority uplink channel.

[0361] The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0362] In one embodiment of this application, the second processing module 1301 is further configured to:

[0363] When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel.

[0364] or,

[0365] When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

[0366] In one embodiment of this application, the second processing module 1301 is further configured to:

[0367] If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, then the uplink channel of the second priority will not be received.

[0368] In one embodiment of this application, the second processing module 1301 is further configured to: if the plurality of first priority uplink channels are all second type uplink channels, obtain the first information according to the configuration of higher layer signaling;

[0369] The second processing module 1301 is further configured to: when the higher-layer signaling configuration allows the plurality of first-priority uplink channels to support multiplexing transmission between uplink channels of different priorities, determine a target uplink channel from the plurality of first-priority uplink channels according to a preset second selection rule, and receive multiplexing transmission between the second-priority uplink channel and one of the plurality of first-priority uplink channels; or, when the higher-layer signaling configuration allows the plurality of first-priority uplink channels to not support multiplexing transmission between uplink channels of different priorities, not receive the second-priority uplink channel;

[0370] The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

[0371] In one embodiment of this application, the second processing module 1301 is further configured to: if the plurality of uplink channels of first priority include a first type of uplink channel and a second type of uplink channel, wherein the first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second type of uplink channel is an uplink channel without a corresponding PDCCH, or the second type of uplink channel is an uplink channel with a corresponding PDCCH but the PDCCH does not contain indication information, or the second type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, wherein the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then:

[0372] Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to receive multiplexed transmission between the second priority uplink channel and one of the plurality of first priority uplink channels; if the indication information in the PDCCH of the first type of uplink channel indicates that multiplexed transmission between uplink channels of different priorities is not supported, determine whether to receive multiplexed transmission between the second priority uplink channel and one of the plurality of first priority uplink channels, or whether to receive the second priority uplink channel, based on the configuration of the higher layer signaling.

[0373] In one embodiment of this application, the second processing module 1301 is further configured to: Mode C: When the indication information in the first type of uplink channel PDCCH indicates support for multiplexing transmission between uplink channels of different priorities, the first priority uplink channel corresponding to the PDCCH containing the indication information is used as the target uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received; or Mode D: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

[0374] In one embodiment of this application, when using method C, if there are multiple first-type uplink channels, at most one of the PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities.

[0375] When using mode D, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

[0376] In one embodiment of this application, the second processing module 1301 is further configured to: if the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to a preset fourth selection rule, determine a target uplink channel from the second type of uplink channel, and receive multiplexing transmission between the uplink channel of the second priority and the target uplink channel.

[0377] or,

[0378] If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority will not be received.

[0379] In one embodiment of this application, the preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following:

[0380] Preset selection rule 1: Select the uplink channel with the earliest starting position among the multiple first-priority uplink channels;

[0381] Preset selection rule 2: Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels;

[0382] Preset selection rule 3: Select the uplink channel with the corresponding PDCCH from the plurality of first priority uplink channels.

[0383] In one embodiment of this application, the conditions for performing the step of receiving multiplexed transmission on one of the plurality of first-priority uplink channels and a second-priority uplink channel according to first information, or not receiving the second-priority uplink channel, include:

[0384] The terminal does not support parallel transmission between uplink channels with different priorities;

[0385] or,

[0386] The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource.

[0387] Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest.

[0388] or,

[0389] The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority.

[0390] or,

[0391] Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or,

[0392] The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

[0393] In one embodiment of this application, when the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains an indication for whether multiplexing transmission between uplink channels of different priorities is performed, the indication information is determined to be invalid, or the indication result of the indication information is determined to be consistent with the transmission result determined according to the first information.

[0394] In the embodiments of this application, the device is capable of implementing this application. Figure 3 The various processes implemented in the method embodiments shown, and the same beneficial effects achieved, will not be described again here to avoid repetition.

[0395] Optional, such as Figure 14 As shown, this application embodiment also provides a communication device 1400, including a processor 1401, a memory 1402, and a program or instructions stored in the memory 1402 and executable on the processor 1401. When the program or instructions are executed by the processor 1401, they implement the above-mentioned... Figure 2 or Figure 3 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0396] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figure 2 or Figure 3 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0397] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0398] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above information processing method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0399] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0400] 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.

[0401] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in the various embodiments of this application.

[0402] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A transmission method applied to a terminal, characterized in that, include: Based on the first information, the uplink channel of the second priority is multiplexed with one of the multiple uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, wherein the first information indicates whether the multiple uplink channels of the first priority support multiplexing transmission between uplink channels of different priorities. Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

2. The method according to claim 1, characterized in that, Based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including: If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple physical downlink control channels (PDCCHs) corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the multiple PDCCHs is consistent; Based on the first information, one of the multiple first-priority uplink channels is determined as the target uplink channel, and the target uplink channel is multiplexed with the second-priority uplink channel, or the second-priority uplink channel is discarded. The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

3. The method according to claim 2, characterized in that, Based on the first information, determining one uplink channel from the plurality of first-priority uplink channels as the target uplink channel includes: When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel. or, When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

4. The method according to claim 2, characterized in that, Based on the first information, the uplink channel of the second priority is discarded, including: If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, the uplink channel of the second priority is discarded.

5. The method according to claim 1, characterized in that, Based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including: If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling. When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and the uplink channel of the second priority is multiplexed with the target uplink channel for transmission. or, If none of the multiple first-priority uplink channels in the higher-layer signaling configuration support multiplexing transmission between uplink channels of different priorities, then the second-priority uplink channel is discarded. The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

6. The method according to claim 1, characterized in that, Based on the first information, the uplink channel of the second priority is multiplexed with one of the plurality of uplink channels of the first priority for transmission, or the uplink channel of the second priority is discarded, including: If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain the indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then: Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to select a target uplink channel in the first type of uplink channels and multiplex it with the uplink channel of the second priority; If the indication information in the PDCCH corresponding to the first type of uplink channel indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to multiplex the second priority uplink channel with one of the multiple first priority uplink channels, or whether to discard the second priority uplink channel, based on the configuration of the higher-layer signaling.

7. The method according to claim 6, characterized in that, Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determining whether to select a target uplink channel from the first type of uplink channels and multiplex it with the uplink channel of the second priority includes: Method A: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority; or Method B: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and the target uplink channel is multiplexed with the second priority uplink channel.

8. The method according to claim 7, characterized in that, When using mode A, in the presence of multiple first-type uplink channels, at most one of the multiple PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities. When using method B, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

9. The method according to claim 6, characterized in that, Based on the configuration of higher-layer signaling, determining whether to multiplex the second-priority uplink channel with one of the plurality of first-priority uplink channels, or determining whether to discard the second-priority uplink channel, includes: If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and the target uplink channel is multiplexed with the uplink channel of the second priority. or, If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority is discarded.

10. The method according to claim 3, 5, 7, or 9, characterized in that, The preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following: Select the uplink channel with the earliest starting position among the plurality of first-priority uplink channels; Select the uplink channel carrying Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) from among the plurality of first-priority uplink channels; Select the uplink channel with the corresponding PDCCH from among the plurality of first-priority uplink channels.

11. The method according to claim 1, characterized in that, The conditions for performing the step of multiplexing the second-priority uplink channel with one of the plurality of first-priority uplink channels for transmission, or discarding the second-priority uplink channel, based on the first information, further include: The terminal does not support parallel transmission between uplink channels with different priorities; or, The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource. Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest. or, The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority. or, Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or, The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

12. The method according to claim 1, characterized in that, When the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is to be performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

13. A transmission method applied to a network-side device, characterized in that, include: According to the first information, the uplink channel of the second priority is received and multiplexed transmission on one of the multiple uplink channels of the first priority, or the uplink channel of the second priority is not received, wherein the first information indicates whether the multiple uplink channels of the first priority support multiplexed transmission between uplink channels of different priorities. Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

14. The method according to claim 13, characterized in that, Based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes: If all of the multiple first-priority uplink channels are first-type uplink channels, then the first information is obtained according to the indication information in the multiple PDCCHs corresponding to the multiple first-priority uplink channels; wherein, at most one of the multiple PDCCHs has an indication information indicating support for multiplexing transmission between uplink channels of different priorities, or the content indicated by the indication information of each of the multiple PDCCHs is the same; Based on the first information, determine one of the multiple first-priority uplink channels as the target uplink channel, and receive multiplexed transmission on the second-priority uplink channel and the target uplink channel, or do not receive the second-priority uplink channel. The first type of uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

15. The method according to claim 14, characterized in that, Based on the first information, determining one uplink channel from the plurality of first-priority uplink channels as the target uplink channel includes: When at most one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, and when the indication information of one of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is supported, the uplink channel of the first priority corresponding to the one PDCCH is determined as the target uplink channel. or, When the indication information of each of the plurality of PDCCHs indicates the same content, and when the indication information of each of the plurality of PDCCHs indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset first selection rule.

16. The method according to claim 14, characterized in that, Based on the first information, uplink channels of the second priority are not accepted, including: If the indication information in each of the plurality of PDCCHs indicates that multiplexing transmission between uplink channels of different priorities is not supported, then the uplink channel of the second priority will not be received.

17. The method according to claim 14, characterized in that, Based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes: If all of the multiple first-priority uplink channels are second-type uplink channels, then the first information is obtained according to the configuration of the higher-layer signaling. When the higher-layer signaling configuration allows multiple uplink channels of the first priority to support multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the multiple uplink channels of the first priority according to a preset second selection rule, and multiplexing transmission between the uplink channel of the second priority and one of the uplink channels of the multiple first priority is received. or, If the higher-layer signaling configuration does not support multiplexing transmission between uplink channels of different priorities, the uplink channel of the second priority will not be received. The second type of uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but without indication information in the PDCCH, or an uplink channel with a corresponding PDCCH and the PDCCH containing the indication information but the indication information is invalid. The indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities.

18. The method according to claim 14, characterized in that, Based on the first information, receiving multiplexed transmission on one of the plurality of first-priority uplink channels using a second-priority uplink channel, or not receiving the second-priority uplink channel, includes: If the plurality of first-priority uplink channels include a first-type uplink channel and a second-type uplink channel, wherein the first-type uplink channel is an uplink channel with a corresponding PDCCH and the PDCCH contains indication information, and the second-type uplink channel is an uplink channel without a corresponding PDCCH, or an uplink channel with a corresponding PDCCH but the PDCCH does not contain indication information, or an uplink channel with a corresponding PDCCH and the PDCCH contains the indication information but the indication information is invalid, and the indication information is used to indicate whether to perform multiplexing transmission between uplink channels of different priorities, then: Based on the indication information in the PDCCH corresponding to the first type of uplink channel, determine whether to receive multiplexed transmission on one of the multiple first priority uplink channels and the second priority uplink channel; If the indication information in the first type of uplink channel PDCCH indicates that multiplexing transmission between uplink channels of different priorities is not supported, the system determines whether to receive multiplexing transmission between the second priority uplink channel and one of the plurality of first priority uplink channels, or whether to receive the second priority uplink channel, based on the configuration of the higher-layer signaling.

19. The method according to claim 18, characterized in that, Determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels based on the indication information in the first type of uplink channel PDCCH includes: Method C: When the indication information in the first type of uplink channel PDCCH indicates support for multiplexing transmission between uplink channels of different priorities, the uplink channel of the first priority corresponding to the PDCCH containing the indication information is taken as the target uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received; or Method D: When the indication information in the PDCCH corresponding to the first type of uplink channel indicates support for multiplexing transmission between uplink channels of different priorities, a target uplink channel is determined from the plurality of first priority uplink channels according to a preset third selection rule, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received.

20. The method according to claim 19, characterized in that, When using method C, if there are multiple first-type uplink channels, at most one of the PDCCHs corresponding to the multiple first-type uplink channels contains indication information indicating support for multiplexing transmission between uplink channels of different priorities. When using mode D, if there are multiple first-type uplink channels, the indication information in the multiple PDCCHs corresponding to the multiple first-type uplink channels is consistent.

21. The method according to claim 18, characterized in that, Based on the higher-layer signaling, determining whether to receive multiplexed transmission on one of the plurality of first-priority uplink channels and the second-priority uplink channel, or whether to receive transmission on the second-priority uplink channel, includes: If the higher-layer signaling configuration allows the second type of uplink channel to support multiplexing transmission between channels of different priorities, then according to the preset fourth selection rule, a target uplink channel is determined from the second type of uplink channel, and multiplexing transmission between the second priority uplink channel and the target uplink channel is received. or, If the higher-layer signaling configuration does not support multiplexing transmission between channels of different priorities for the second type of uplink channel, then the uplink channel of the second priority will not be received.

22. The method according to claim 15, 17, 19, or 21, characterized in that, The preset first selection rule, the preset second selection rule, the preset third selection rule, or the preset fourth selection rule includes at least one of the following: Select the uplink channel with the earliest starting position among the plurality of first-priority uplink channels; Select the uplink channel carrying HARQ-ACK from the plurality of first-priority uplink channels; Select the uplink channel with the corresponding PDCCH from among the plurality of first-priority uplink channels.

23. The method according to claim 13, characterized in that, The conditions for performing the step of receiving multiplexed transmission on one of the plurality of first-priority uplink channels and a second-priority uplink channel, or not receiving the second-priority uplink channel, based on the first information, include: Parallel transmission between uplink channels with different priorities is not supported. or, The multiple first-priority uplink channels need to be multiplexed with a second-priority uplink channel on the same uplink channel resource. Alternatively, among the plurality of first-priority uplink channels and one second-priority uplink channel, the start time of the second-priority uplink channel is the earliest. or, The first priority is high priority, and the second priority is low priority; or, the first priority is low priority, and the second priority is high priority. or, Both the first-priority uplink channel and the second-priority uplink channel carry HARQ-ACK; or, The PDCCH corresponding to the uplink channel of the first priority or the PDCCH corresponding to the uplink channel of the second priority satisfies the multiplexing timeline.

24. The method according to claim 13, characterized in that, When the uplink channel of the second priority has a corresponding PDCCH and the PDCCH contains indication information for indicating whether multiplexing transmission between uplink channels of different priorities is to be performed, the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be invalid, or the indication result of the indication information in the PDCCH corresponding to the uplink channel of the second priority is determined to be consistent with the transmission result determined according to the first information.

25. A transmission device applied to a terminal, characterized in that, include: The first processing module is configured to, based on the first information, multiplex the uplink channel of the second priority with one of the multiple uplink channels of the first priority for transmission, or discard the uplink channel of the second priority, wherein the first information indicates whether the multiple uplink channels of the first priority support multiplexing transmission between uplink channels of different priorities. Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

26. A transmission device, applied to network-side equipment, characterized in that, include: The second processing module is configured to, based on the first information, receive multiplexed transmission on one of the multiple first-priority uplink channels and the second-priority uplink channel, or not receive the second-priority uplink channel, wherein the first information indicates whether the multiple first-priority uplink channels support multiplexed transmission between uplink channels of different priorities. Among them, there is time-domain resource overlap between the plurality of first-priority uplink channels and one second-priority uplink channel, and there is no time-domain resource overlap between the plurality of first-priority uplink channels.

27. A terminal, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 12.

28. A network-side device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 13 to 24.

29. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 24.

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