CN111200487A

CN111200487A - Transmission method and device for hybrid automatic repeat request acknowledgement HARQ-ACK

Info

Publication number: CN111200487A
Application number: CN201811384446.3A
Authority: CN
Inventors: 张萌; 曲鑫
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2018-11-20
Filing date: 2018-11-20
Publication date: 2020-05-26
Anticipated expiration: 2038-11-20
Also published as: WO2020103780A1; CN111200487B

Abstract

The disclosure relates to a transmission method and device for hybrid automatic repeat request acknowledgement (HARQ-ACK), which can be applied to User Equipment (UE). The method comprises the following steps: when collision occurs among the HARQ-ACKs of a plurality of unicast transmissions, selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACKs of the plurality of unicast transmissions; transmitting the first HARQ-ACK. According to the method and the device, the HARQ-ACK meeting the first preset condition is selected to be transmitted when the HARQ-ACK of the unicast transmission collides through setting the first preset condition, so that the HARQ-ACK of the unicast transmission can still be normally transmitted when the HARQ-ACK of the unicast transmission collides.

Description

Transmission method and device for hybrid automatic repeat request acknowledgement HARQ-ACK

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a transmission method and an apparatus for HARQ-ACK.

Background

The existing system is directed to a UE (User Equipment), and does not have a situation of simultaneous transmission of multiple unicasts (unicasts), or a scenario of simultaneous existence of a unicast and a multicast (groupcast), and does not support HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement) for multicast.

HARQ is a technique that combines forward error correction coding (FEC) and automatic repeat request (ARQ), and determines whether retransmission is required through ACK/NACK. The key words of HARQ are storage, request retransmission, combining demodulation. HARQ retransmissions are based on ACK/NACK, which is reported quickly and frequently with a 1-bit signal (signaling).

In the RAN1-94b conference, HARQ-ACK for unicast and multicast transmission should be simultaneously supported on a sidelink (sidelink) of nr (new radio) V2X (Vehicle-to-evolution), and two HARQ feedback modes will be carefully studied in R16.

In the NR study of R15 and in the preceding LTE (Long Term Evolution) study, there was only HARQ feedback for unicast. In the research of R15, there is a discussion of collision rules for unicast HARQ feedback and SR (scheduling request) and CSI (Channel State Information) feedback.

Currently, there is no collision rule for HARQ-ACKs that are to support both unicast and multicast transmissions on the side link of NR V2X, and for HARQ-ACKs for multiple unicast transmissions.

Disclosure of Invention

In view of this, the present disclosure provides a transmission method and apparatus for HARQ-ACK, which can still normally transmit HARQ-ACK when multiple HARQ-ACKs collide.

According to an aspect of the present disclosure, there is provided a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, the method being applied to a user equipment UE, the method including:

when collision occurs among the HARQ-ACKs of a plurality of unicast transmissions, selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACKs of the plurality of unicast transmissions;

transmitting the first HARQ-ACK.

According to another aspect of the present disclosure, there is provided a method for transmitting an automatic repeat request acknowledgement HARQ-ACK, the method being applied to a user equipment UE, the method comprising:

when collision occurs among the HARQ-ACKs of a plurality of multicast transmissions, selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACKs of the plurality of multicast transmissions;

transmitting the first HARQ-ACK.

According to another aspect of the present disclosure, there is provided a method for transmitting hybrid automatic repeat request acknowledgement HARQ-ACK, the method being applied to a user equipment UE, the method comprising:

and when the HARQ-ACK of the unicast transmission and the HARQ-ACK of the multicast transmission collide, selecting the HARQ-ACK with the highest priority of the corresponding transmission from the HARQ-ACK of the unicast transmission and the HARQ-ACK of the multicast transmission for transmission.

when collision occurs between the HARQ-ACK of a plurality of unicast transmissions and the HARQ-ACK of a multicast transmission, selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACK of the plurality of unicast transmissions;

and selecting the HARQ-ACK with the highest transmission priority or PSSCH priority from the first HARQ-ACK and the HARQ-ACK of the multicast transmission for transmission.

when collision occurs between the HARQ-ACK of unicast transmission and the HARQ-ACK of multiple multicast transmissions, selecting a first HARQ-ACK meeting a first preset condition from the HARQ-ACK of the multiple multicast transmissions;

and selecting the HARQ-ACK with the highest transmission priority or PSSCH priority from the first HARQ-ACK and the HARQ-ACK of the unicast transmission for transmission.

when collision occurs between the HARQ-ACK and the CSI feedback, one of the HARQ-ACK or the CSI feedback is selected to be transmitted according to a second preset condition;

wherein the HARQ-ACK is HARQ-ACK of unicast transmission or HARQ-ACK of multicast transmission.

when collision occurs between the HARQ-ACK and the channel state information SR, one of the HARQ-ACK or the SR is selected to be transmitted according to a third preset condition;

According to another aspect of the present disclosure, there is provided an apparatus for transmitting hybrid automatic repeat request acknowledgement HARQ-ACK, the apparatus being applied to a user equipment UE, the apparatus comprising:

the device comprises a first selection module, a second selection module and a transmission module, wherein the first selection module is used for selecting a first HARQ-ACK meeting a first preset condition from the plurality of HARQ-ACKs of unicast transmission when collision occurs among the plurality of HARQ-ACKs of unicast transmission;

a first transmission module, configured to transmit the first HARQ-ACK.

the third selection module is used for selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACKs of the multicast transmission when collision occurs among the HARQ-ACKs of the multicast transmission;

a second transmission module for transmitting the first HARQ-ACK.

and the fifth selection module is used for selecting the HARQ-ACK with the highest priority of the corresponding transmission from the unicast transmission HARQ-ACK and the multicast transmission HARQ-ACK for transmission when the unicast transmission HARQ-ACK and the multicast transmission HARQ-ACK collide.

a seventh selecting module, configured to select, when a collision occurs between multiple unicast-transmitted HARQ-ACKs and multicast-transmitted HARQ-ACKs, a first HARQ-ACK that meets a first preset condition from the multiple unicast-transmitted HARQ-ACKs;

and the eighth selection module is used for selecting the HARQ-ACK with the highest transmission priority or the highest PSSCH priority from the first HARQ-ACK and the HARQ-ACK of the multicast transmission to be transmitted.

a ninth selecting module, configured to select, when a collision occurs between a unicast-transmitted HARQ-ACK and a plurality of multicast-transmitted HARQ-ACKs, a first HARQ-ACK that meets a first preset condition from the plurality of multicast-transmitted HARQ-ACKs;

and the tenth selecting module is used for selecting the HARQ-ACK with the highest transmission priority or the highest PSSCH priority from the first HARQ-ACK and the HARQ-ACK of the unicast transmission to be transmitted.

an eleventh selecting module, configured to select one of the HARQ-ACK or the CSI feedback for transmission according to a second preset condition when a collision occurs between the HARQ-ACK and the CSI feedback;

a twelfth selecting module, configured to select one of the HARQ-ACK and the SR for transmission according to a third preset condition when a collision occurs between the HARQ-ACK and the SR;

According to another aspect of the present disclosure, there is provided a transmission apparatus of a hybrid automatic repeat request acknowledgement, HARQ-ACK, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method.

According to the method of the embodiment of the disclosure, by setting the first preset condition, when the HARQ-ACK of the unicast transmission collides, the HARQ-ACK meeting the first preset condition is selected for transmission, so that the HARQ-ACK can still be normally transmitted when the HARQ-ACK of the unicast transmission collides.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 2 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 3 shows a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 4 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 5 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 6 shows a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 7 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 8 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 9 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 10 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 11 shows a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 12 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 13 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 14 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 15 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 16 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 17 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 18 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 19 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 20 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure.

Fig. 21 is a block diagram illustrating an apparatus 800 for transmission of HARQ-ACK in accordance with an example embodiment.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

In V2X communication, HARQ technology can be used for transmission and reception of sidelink data, and whether retransmission is required is determined through ACK/NACK. On the RAN1-94b conference, HARQ-ACK feedback for unicast and multicast transmissions is to be supported simultaneously on the side link passing NR V2X. The present disclosure addresses the problem of how to transmit HARQ-ACKs when unicast and multicast transmissions 'HARQ-ACKs collide, and when multiple unicast/multicast transmissions' HARQ-ACKs collide, on the side link of NR V2X.

The HARQ-ACK information may be ACK or NACK information corresponding to a PSCCH (physical side link shared Channel) or PSCCH (physical side link Control Channel) for unicast transmission, may be ACK or NACK information corresponding to a PSCCH or PSCCH for multicast transmission, or may include ACK or NACK information corresponding to both a PSCCH or PSCCH for unicast and multicast transmission.

The HARQ-ACK information may be carried by PSCCH, or PSFCH (Physical sidelink feedback Channel), PUCCH (Physical Uplink control Channel), or PUSCH (Physical Uplink Shared Channel).

The Uu link is defined as a radio protocol between the user equipment and the enb (evolved nodeb) or a radio communication protocol between the user equipment and the gNB or a radio communication protocol between the user equipment and the base station. Sildelink refers to a communication protocol between user equipment and user equipment without participation of a base station.

The higher layer signaling appearing hereinafter may specifically be RRC (Radio Resource Control) signaling or MAC-CE (MAC Control Element) signaling.

HARQ-ACK, SR, CSI feedback appearing hereinafter may adopt different PUCCH formats or SL-PUCCH formats or SFCI formats if it passes UCI (uplink control information) or SL-UCI (downlink uplink control information) or SFCI (downlink feedback control information). Different PUCCH formats or SL-PUCCH formats or SFCI formats may have respective requirements on the number of bits to be carried and/or on the number of symbols occupied for transmission. The present disclosure is not particularly limited, and is applicable to various PUCCH formats or SL-PUCCH formats in a collision situation.

The collision between HARQ-ACKs, which occurs hereinafter, may be applicable to the case where the base station is not configured with simultaneous-HARQ resources and/or simultaneous-HARQ indications. Wherein the simultaneous-HARQ resource is used for bearing the collided HARQ-ACK; the simultaneous-HARQ indication may be used to indicate that the UE may place the collided HARQ-ACK on the simultaneous-HARQ resource for carrying.

The collision between HARQ-ACK and CSI feedback, which occurs hereinafter, may be applicable to the case where the base station does not configure simultaneous-HARQ-CSI resources and/or simultaneous-HARQ-CSI indication. Wherein the simultaneous-HARQ-CSI resource is used for carrying the HARQ-ACK and CSI feedback which are collided; the simultaneous-HARQ-CSI indication may be used to indicate that the UE may place the collided HARQ-ACK and CSI feedback on the simultaneous-HARQ-CSI resource for carrying.

The collision between HARQ-ACK and SR, which occurs hereinafter, may be applicable to the case where the base station does not configure simultaneous-HARQ-SR resources and/or simultaneous-HARQ-SR indication. Wherein the simultaneous-HARQ-SR resource is used for bearing the collided HARQ-ACK and SR; the simultaneous-HARQ-SR indication may be used to indicate that the UE may place the collided HARQ-ACK and SR on the simultaneous-HARQ-SR resource for bearer.

In a possible implementation manner, the present disclosure provides a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment may be applied to a scenario where a collision occurs between HARQ-ACKs of multiple unicast transmissions.

Fig. 1 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 1, the method may include:

step S11, when collision occurs among a plurality of unicast-transmitted HARQ-ACKs, selecting a first HARQ-ACK meeting a first preset condition from the plurality of unicast-transmitted HARQ-ACKs;

and step S12, transmitting the first HARQ-ACK.

The first preset condition may be that the priority of the physical side link shared channel psch corresponding to HARQ-ACK is the highest, the position of the first symbol of the time domain resource or channel corresponding to HARQ-ACK is the first, and so on. The PSSCH corresponding to the HARQ-ACK can refer to a channel for bearing the HARQ-ACK, and the time domain resource or the channel corresponding to the HARQ-ACK can refer to the time domain resource or the channel for bearing the HARQ-ACK.

The Priority of the psch corresponding to the HARQ-ACK may be determined by a PPPP (ProSe Per-Packet Priority) corresponding to transmission carried by the psch, where a lower value of the PPPP indicates a higher Priority of the corresponding transmission, and the PPPP may be indicated by SCI (Sidelink Control Information) or higher layer signaling. The PPPP value may be related to at least one of a QoS priority (priority), a latency (latency), a reliability (reliability), and a minimum required communication distance (minimum required communication range).

The collision may be that the time-frequency resources or channels carrying the HARQ-ACK overlap or partially overlap in time, or the time-frequency resources or channels carrying the HARQ-ACK overlap or partially overlap in time and frequency domains.

In one example, taking the first preset condition as the highest priority of the pschs corresponding to HARQ-ACKs as an example, when HARQ-ACKs of unicast transmission on multiple side links of the UE collide, the UE may determine the priorities of the pschs corresponding to the HARQ-ACKs of the multiple unicast transmissions through PPPP corresponding to transmissions carried by the pschs corresponding to HARQ-ACKs, select the HARQ-ACK of the unicast transmission carried by the psch with the highest priority as the first HARQ-ACK, and transmit the first HARQ-ACK to the corresponding UE or base station. For example, the HARQ-ACKs (HARQ-ACK1, HARQ-ACK2, HARQ-ACK3) of unicast transmission on 3 side links of the UE are collided, the PPPPs corresponding to the transmissions carried by the PSSCH corresponding to HARQ-ACK1, HARQ-ACK2, HARQ-ACK3 are 1, 2, 3, respectively, and the first HARQ-ACK is HARQ-ACK 1.

Wherein, if there is a case that the priorities of PSCCHs corresponding to a plurality of HARQ-ACKs are parallel to the highest, the first HARQ-ACK may be selected based on one of the following criteria:

1. selecting the time frequency resource or the time frequency resource which is closest to the first symbol in the time frequency resources or the time frequency channels which bear the HARQ-ACK and have the collision as the HARQ-ACK;

2. selecting the time frequency resource or channel bearing the HARQ-ACK which is collided and closest to the first symbol in the time frequency resource or channel bearing the HARQ-ACK as the first HARQ-ACK;

3. selecting the time frequency resource or the HARQ-ACK carried by the channel occupying the maximum number of symbols in the time domain in the time frequency resource or the channel carrying the HARQ-ACK which is collided as the first HARQ-ACK;

4. selecting the time frequency resource or the HARQ-ACK carried by the channel which occupies the least number of symbols in the time domain of the time frequency resource or the channel which carries the HARQ-ACK and has the collision as the first HARQ-ACK;

5. and selecting any one time-frequency resource or channel carried HARQ-ACK from the collided time-frequency resources or channels carrying HARQ-ACK as the first HARQ-ACK.

In another example, taking the first preset condition as the first preset condition that the position of the first symbol (symbol) of the time domain resource or channel corresponding to the HARQ-ACK is the first, when the HARQ-ACKs transmitted by unicast on multiple side links of the UE collide, the UE may determine the position of the first symbol of the time domain resource or channel corresponding to each HARQ-ACK, for example, the position of the first symbol in the slot, take the HARQ-ACK with the first symbol position in the slot as the first HARQ-ACK, and transmit the first HARQ-ACK to the corresponding UE or base station.

It should be noted that, although the transmission method of HARQ-ACK is described above by taking the priority and the position of the first symbol as examples, those skilled in the art can understand that the present disclosure should not be limited thereto. In fact, the user can flexibly set the first preset condition according to personal preference and/or practical application scenarios as long as normal transmission of HARQ-ACK can be achieved.

In one possible implementation, as shown in fig. 2, the method may further include:

step S13, if the positions of the time domain resources or the first symbols of the channel corresponding to the plurality of unicast-transmitted HARQ-ACKs are the same, selecting the HARQ-ACK with the longest or shortest time domain duration (duration) corresponding to the plurality of unicast-transmitted HARQ-ACKs as the first HARQ-ACK, or selecting any one of the plurality of unicast-transmitted HARQ-ACKs as the first HARQ-ACK.

In one example, the first symbols of the time domain resources or channels corresponding to the HARQ-ACKs of multiple unicast transmissions have the same position (i.e. are arranged at the top side by side), and the UE may determine how to transmit the HARQ-ACK according to the time domain duration of the time domain resources of the HARQ-ACK. For example, the HARQ-ACK with the longest or shortest time domain duration may be selected as the first HARQ-ACK.

In another example, the first symbols of the time domain resources or channels corresponding to the HARQ-ACKs of the plurality of unicast transmissions are located in the same position (i.e. the first symbols are located at the top side), and the UE may randomly select any one of the HARQ-ACKs as the first HARQ-ACK, i.e. the UE may transmit any one of the HARQ-ACKs of the plurality of unicast transmissions based on the UE implementation.

By the transmission method of the HARQ-ACK of the above embodiment, the HARQ-ACK normal transmission can still be realized when the positions of the first symbols of the time domain resources or channels corresponding to the HARQ-ACKs of the plurality of unicast transmissions are the same.

Fig. 3 shows a flowchart of a transmission method of hybrid automatic repeat request acknowledgement, HARQ-ACK, according to an embodiment of the present disclosure.

As shown in fig. 3, in one possible embodiment, the method may further include:

step S14, discarding HARQ-ACK except the first HARQ-ACK in the plurality of HARQ-ACK of unicast transmission.

Or,

and step 15, sequentially postponing HARQ-ACK except the first HARQ-ACK in the plurality of unicast transmission to the next transmission opportunity according to the priority of PSSCH.

Or,

and step S16, delaying HARQ-ACK except the first HARQ-ACK in the plurality of unicast transmission HARQ-ACK to the next transmission opportunity in sequence from front to back according to the position of the first symbol of the time domain resource or channel for transmission.

Wherein, the steps S14, S15, and S16 may be performed after the step S12.

For step S14, for example, the HARQ-ACKs (HARQ-ACK1, HARQ-ACK2, HARQ-ACK3) of unicast transmission on 3 side links of the UE collide, the PPPPs corresponding to the PSSCH carried by the HARQ-ACK1, HARQ-ACK2, HARQ-ACK3 are 1, 2, 3, respectively, and the first HARQ-ACK is HARQ-ACK 1. The UE may transmit HARQ-ACK1, discard HARQ-ACK2, HARQ-ACK 3.

The next transmissible opportunity may be a time domain and a frequency domain position where the resource of the next HARQ-ACK which can be used for transmission is located, which are obtained according to the periodic configuration of the periodic time-frequency resource for carrying the HARQ-ACK.

For step S15, still taking the above example as an example, for HARQ-ACK2, HARQ-ACK3, HARQ-ACK2 may be transmitted if the transmission condition is met when the next transmission opportunity comes, otherwise, proceed to the next transmission opportunity; after the transmission of HARQ-ACK2 is completed, when the next transmission opportunity comes, HARQ-ACK3 is transmitted if the transmission condition is satisfied, otherwise, the next transmission opportunity is carried forward.

For step S16, for example, the HARQ-ACKs (HARQ-ACK1, HARQ-ACK2, HARQ-ACK3) of unicast transmission on 3 side links of the UE collide, and the position of the first symbol of the time domain resource corresponding to HARQ-ACK1, HARQ-ACK2, HARQ-ACK 3: HARQ-ACK1 is first, and HARQ-ACK2 is earlier than HARQ-ACK 3. The UE may transmit HARQ-ACK1, for HARQ-ACK2, HARQ-ACK3, may transmit HARQ-ACK2 if the transmission conditions are met when the next transmission opportunity comes, and otherwise proceed to the next transmission opportunity; after HARQ-ACK2 transmission is complete, when the next transmission opportunity comes, HARQ-ACK3 is transmitted if the transmission condition is met, otherwise, the transmission is continued to the next transmission opportunity

By the transmission method of HARQ-ACK of the embodiment, when collision occurs among the HARQ-ACK of a plurality of unicast transmissions, normal transmission of all HARQ-ACK can be realized.

In one possible implementation, the method may further include: and sequentially postponing HARQ-ACK except the first HARQ-ACK in the plurality of unicast transmitted HARQ-ACK to the next available transmission opportunity according to the duration of the time domain duration. For example, the transmission may be performed by sequentially deferring to the next transmittable opportunity according to the duration of the time domain, or may be performed by sequentially deferring to the next transmittable opportunity according to the duration of the time domain.

As shown in fig. 4, in one possible implementation, the method may further include:

in step S17, when a collision occurs between the HARQ-ACKs of the plurality of unicast transmissions, the plurality of HARQ-ACKs and the destination address corresponding to each HARQ-ACK are multiplexed (multiplexed) on the physical uplink control channel PUCCH, and the transmission is performed.

The destination address corresponding to the HARQ-ACK may refer to an address at which the UE transmits the HARQ-ACK to another UE or a transmission source user of the PSCCH corresponding to the HARQ-ACK. Multiplexing to the PUCCH may refer to multiplexing into PSCCH or UCI (Uplink Control Information) or SL-UCI (Sidelink Uplink Control Information) or SFCI.

For example, when the HARQ-ACKs of unicast transmission on multiple side links of the UE collide, the UE may determine the address of the UE connected to the other end of the multiple side links of the UE, for example, the multiple side links of the UE include side link 1, side link 2, and side link 3, the other end of the multiple side links of the UE are connected to UE1, UE2, and UE3, and the HARQ-ACKs of unicast transmission on side link 1, side link 2, and side link 3 are HARQ-ACK1, HARQ-ACK2, and HARQ-ACK3, respectively. Then, the Destination address corresponding to HARQ-ACK1 is the address Destination-ID1 of UE1, the Destination address corresponding to HARQ-ACK2 is the address Destination-ID2 of UE2, and the Destination address corresponding to HARQ-ACK3 is the address Destination-ID3 of UE 3. The UE can multiplex HARQ-ACK1, HARQ-ACK2, HARQ-ACK3, Destination-ID1, Destination-ID2 and Destination-ID3 in SL-UCI or SFCI and transmit the signals to UE1, UE2 and UE 3.

SL-UCI or SFCI:

Destination-ID field-1：1

HARQ-ACK field-1：0

Destination-ID field-2：2

HARQ-ACK field-2：1

Destination-ID field-3：3

HARQ-ACK field-3：1

thus, after receiving the SL-UCI or the SFCI, the UE1, the UE2 and the UE3 go to the HARQ-ACK field corresponding to the Destination-ID and unicast-transmit the corresponding HARQ-ACK before reading. For example, U1 removes HARQ-ACK field-1 corresponding to Destination-ID field-1 from the HARQ-ACK corresponding to the unicast transmission prior to reading. U2 removes HARQ-ACK field-2 corresponding to Destination-IDfield-2 to read the HARQ-ACK corresponding to the unicast transmission before. U3 removes HARQ-ACK field-3 corresponding to Destination-ID field-3 to read the HARQ-ACK corresponding to the unicast transmission before.

In one possible implementation, the Source address (Source ID) of the UE may also be multiplexed (multiplexed) to the PUCCH.

In a possible implementation manner, the present disclosure further provides a transmission method of HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between HARQ-ACKs of multiple multicast transmissions, and a specific implementation manner in this scenario may refer to the scenario where a collision occurs between HARQ-ACKs of multiple unicast transmissions in the above sections of fig. 1 to fig. 4, and in this embodiment, a detailed description will not be given to a specific process.

Fig. 5 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 5, in a scenario where a collision occurs between HARQ-ACKs of multiple multicast transmissions, the method may include:

step S21, when collision occurs among the HARQ-ACKs of a plurality of multicast transmissions, selecting a first HARQ-ACK which meets a first preset condition from the HARQ-ACKs of the plurality of multicast transmissions;

and step S22, transmitting the first HARQ-ACK.

In one possible implementation, the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

According to the method of the embodiment of the disclosure, by setting the first preset condition, when the HARQ-ACK of the multicast transmission collides, the HARQ-ACK meeting the first preset condition is selected for transmission, so that the HARQ-ACK can still be normally transmitted when the HARQ-ACK of the multicast transmission collides.

In one possible implementation, the method further includes:

step S23, if the position of the first symbol of the time domain resource corresponding to the HARQ-ACKs of multiple multicast transmissions is the same, selecting the HARQ-ACK with the longest or shortest time domain duration corresponding to the HARQ-ACKs of multiple multicast transmissions as the first HARQ-ACK, or selecting any HARQ-ACK of the HARQ-ACKs of multiple multicast transmissions as the first HARQ-ACK.

By the transmission method of HARQ-ACK of the above embodiment, the HARQ-ACK normal transmission can still be realized when the positions of the first symbols of the time domain resources or channels corresponding to the HARQ-ACKs of multiple multicast transmissions are the same.

In one possible implementation, the method further includes:

step S24, discarding HARQ-ACK except the first HARQ-ACK in the HARQ-ACK of the plurality of multicast transmissions.

Or,

and step 25, sequentially postponing HARQ-ACK except the first HARQ-ACK in the plurality of multicast transmission to the next transmission opportunity according to the priority of PSSCH.

Or,

and step S26, sequentially postponing HARQ-ACKs except the first HARQ-ACK among the plurality of multicast transmission HARQ-ACKs from front to back to the next transmission opportunity according to the position of the first symbol of the time domain resource.

In one possible implementation, the method further includes:

in step S27, when a collision occurs between HARQ-ACKs of a plurality of multicast transmissions, the plurality of HARQ-ACKs and the destination address corresponding to each HARQ-ACK are multiplexed on the physical uplink control channel PUCCH for transmission.

By the transmission method of HARQ-ACK of the embodiment, when the HARQ-ACK of a plurality of multicast transmissions collide, normal transmission of all HARQ-ACK can be realized.

In a possible implementation manner, the present disclosure further provides a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between a unicast-transmitted HARQ-ACK and a multicast-transmitted HARQ-ACK. Fig. 6 shows a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

As shown in fig. 6, the method may include:

step S31 is to select the HARQ-ACK with the highest priority corresponding to the transmission from the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK for transmission when a collision occurs between the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK.

In one possible implementation, the method may further include:

step S32, the HARQ-ACK with the low priority corresponding to the transmission is discarded.

Or

In step S33, the HARQ-ACK with the low priority corresponding to the transmission is postponed to the next transmission opportunity for transmission.

In one possible implementation, the priority of the transmission may be preset, for example, the priority of the unicast transmission may be preset to be higher than the priority of the multicast transmission, that is, the priority of the unicast transmission is higher than the priority of the multicast transmission. In this way, when a collision occurs between the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK on the side link of the UE, the unicast-transmitted HARQ-ACK is directly transmitted, the multicast-transmitted HARQ-ACK is discarded, or the multicast-transmitted HARQ-ACK is delayed until the next available transmission opportunity for transmission.

In another possible implementation manner, the priority of unicast may also be set to be lower than that of multicast in advance, that is, the priority of unicast transmission is lower than that of multicast transmission. In this way, when a collision occurs between the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK on the UE side link, the multicast-transmitted HARQ-ACK is directly transmitted, the unicast-transmitted HARQ-ACK is discarded, or the unicast-transmitted HARQ-ACK is delayed to the next transmittable opportunity for transmission.

By the transmission method of the HARQ-ACK of the embodiment, when the HARQ-ACK transmitted in a unicast mode and the HARQ-ACK transmitted in a multicast mode collide, the normal transmission of the HARQ-ACK can be achieved without comparing the priority of the PSSCH corresponding to the HARQ-ACK.

In another possible implementation manner, the method may further include:

step S34, when a collision occurs between the HARQ-ACK of unicast transmission and the HARQ-ACK of multicast transmission, selecting the HARQ-ACK with the highest priority of the corresponding PSSCH from the HARQ-ACK of unicast transmission and the HARQ-ACK of multicast transmission for transmission;

in step S35, the HARQ-ACK with the low priority of the corresponding pscch is postponed until the next transmission opportunity for transmission.

And selecting the HARQ-ACK with the highest priority of the corresponding PSSCH from the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK for transmission, wherein the priority can still be determined by the PPPP of the PSSCH corresponding to the HARQ-ACK, and the detailed process is not repeated.

In one possible implementation, the method may further include:

the HARQ-ACK with the low priority of the corresponding psch is discarded.

In a possible implementation manner, the present disclosure further provides a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between a plurality of unicast-transmitted HARQ-ACKs and a multicast-transmitted HARQ-ACK. Fig. 7 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure.

As shown in fig. 7, the method may include:

step S41, when a plurality of unicast-transmitted HARQ-ACKs and multicast-transmitted HARQ-ACKs collide with each other, selecting a first HARQ-ACK meeting a first preset condition from the plurality of unicast-transmitted HARQ-ACKs;

step S42 selects the HARQ-ACK with the highest transmission priority or PSSCH priority from the first HARQ-ACK and the HARQ-ACKs for multicast transmission, and transmits the selected HARQ-ACK.

Wherein the first preset condition is any one of the following conditions: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

Selecting the first HARQ-ACK meeting the first preset condition from the plurality of HARQ-ACKs for unicast transmission refers to the description of step S11 in the foregoing, and is not repeated here.

For the step S42, reference may be made to the description of the foregoing steps S31-S35, and the description is omitted here.

By the transmission method of HARQ-ACK of the embodiment, the normal transmission of HARQ-ACK can be realized in the scene of collision between the HARQ-ACK of a plurality of unicast transmissions and the HARQ-ACK of multicast transmissions.

In a possible implementation manner, the present disclosure further provides a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between a unicast-transmitted HARQ-ACK and a plurality of multicast-transmitted HARQ-ACKs.

Fig. 8 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 8, in a scenario where a collision occurs between a HARQ-ACK for a unicast transmission and a HARQ-ACK for multiple multicast transmissions, the method may include:

step S51, when a collision occurs between the HARQ-ACK of unicast transmission and the HARQ-ACK of multiple multicast transmissions, selecting a first HARQ-ACK meeting a first preset condition from the HARQ-ACK of multiple multicast transmissions;

step S52 selects the HARQ-ACK with the highest transmission priority or PSSCH priority from the first HARQ-ACK and the unicast transmission HARQ-ACK, and transmits the selected HARQ-ACK.

In one possible implementation, the first preset condition is any one of the following: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

In step S51, the specific process of selecting the first HARQ-ACK meeting the first preset condition from the HARQ-ACKs of the multiple multicast transmissions may refer to the manner in the above scenario where collision occurs between HARQ-ACKs of the multiple multicast transmissions (steps S21-S27), and is not described again.

For the specific process of step S52, selecting the HARQ-ACK with the highest transmission priority or PSSCH priority from the first HARQ-ACK and the HARQ-ACK of unicast transmission for transmission, reference may be made to the description of steps S31-S35, and details are not repeated.

By the transmission method of the HARQ-ACK of the embodiment, the normal transmission of the HARQ-ACK can be realized in the scene that the HARQ-ACK of unicast transmission and the HARQ-ACK of a plurality of multicast transmissions collide.

In a possible implementation manner, the present disclosure further provides a transmission method of HARQ-ACK, which is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between HARQ-ACK of unicast transmission and CSI feedback, or a collision occurs between HARQ-ACK of multicast transmission and CSI feedback.

Fig. 9 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 9, in a scenario where a collision occurs between HARQ-ACK and CSI feedback of unicast transmission, or a collision occurs between HARQ-ACK and CSI feedback of multicast transmission, the method may include:

step S61, when a collision occurs between the HARQ-ACK and the CSI feedback, one of the HARQ-ACK or the CSI feedback is selected to be transmitted according to a second preset condition;

Wherein the second preset condition is any one of the following conditions:

the relation between the priority of PSSCH corresponding to HARQ-ACK and the priority threshold, the position of the first symbol of time domain resource or channel corresponding to HARQ-ACK and the position of the first symbol of time domain resource or channel corresponding to CSI feedback, and the predefined relation between the priority of HARQ-ACK and CSI feedback.

By the HARQ-ACK transmission method of the embodiment, the normal transmission of the HARQ-ACK can be realized in the scene of collision between the HARQ-ACK and CSI feedback of unicast transmission or multicast transmission.

In one possible implementation, the method may further include discarding HARQ-ACKs or CSI feedback that is not transmitted. For example, if the HARQ-ACK is selected for transmission according to the second preset condition, the CSI feedback is discarded; and if the CSI feedback is selected to be transmitted according to the second preset condition, discarding the HARQ-ACK.

According to different classification manners, the CSI feedback may be unicast transmission or multicast transmission, and the CSI feedback may be periodic or aperiodic or semi-persistent (semi-persistent), and the disclosure does not limit the type of the CSI feedback. In addition, the channel carrying the CSI feedback may be psch or PSCCH or PSFCH or PUCCH or PUSCH, and the disclosure does not limit the type of the channel carrying the CSI feedback. The CSI feedback may contain at least one of the following parameters: RI, PMI, CQI (Channel Quality Indicator), RSRP (Reference Signal Receiving Power), RSRQ (Reference Signal Receiving Quality), L1-SINR (Layer1-Signal to Interference plus noise ratio, Layer1 Signal to Interference noise ratio), L1-RSRQ (Layer1-Reference Signal Receiving Quality, Layer1 Reference Signal Receiving Quality), L1-RSRP (Layer1-Reference Signal Receiving Power, Layer1 Reference Signal Receiving Power), LI (Layer Indicator ), SRI (Sounding Reference Signal Indicator, Reference probe indication), Signal (CSI-RS, Signal status information Indicator), broadcast Signal Indicator (broadcast resource Indicator, Synchronization resource). The above parameters may be based on measurement of side link channels, or based on measurement of Uu link channels.

The collision may be that the time-frequency resource or channel carrying the HARQ-ACK overlaps or partially overlaps with the time-frequency resource or channel carrying the CSI feedback in time, or the time-frequency resource or channel carrying the HARQ-ACK overlaps or partially overlaps with the time-frequency resource or channel carrying the CSI feedback in time and frequency domains.

In one example, the method is described by taking the size relationship between the priority of the psch corresponding to the HARQ-ACK and the priority threshold as an example. The priority threshold may be indicated by the base station through higher layer signaling (e.g., RRC signaling), or MAC-CE (MAC Control Element), or DCI (Downlink Control information).

As shown in fig. 9, the selecting one of the HARQ-ACK or the CSI feedback for transmission according to the second preset condition in step S61 may include:

step S611, when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than a priority threshold, the HARQ-ACK is selected for transmission;

and step S612, when the priority of the PSSCH corresponding to the HARQ-ACK is lower than a priority threshold, selecting CSI feedback for transmission.

The CSI feedback may be discarded when HARQ-ACK is selected for transmission, and the HARQ-ACK may be discarded when CSI feedback is selected for transmission. For example, when a collision occurs between the unicast HARQ-ACK and the CSI feedback, the unicast HARQ-ACK is selected for transmission when the priority of the PSSCH corresponding to the unicast HARQ-ACK is not lower than the priority threshold. And when the priority of the PSSCH corresponding to the HARQ-ACK transmitted in the unicast mode is lower than a priority threshold, selecting CSI feedback for transmission. The example is also applicable to scenarios where a collision occurs between HARQ-ACK and CSI feedback for multicast transmissions.

In one example, the method is described by taking the second preset condition as a predefined priority relation between HARQ-ACK and CSI feedback.

step S613, if the predefined priority of the HARQ-ACK is higher than the priority of CSI feedback, the HARQ-ACK is selected for transmission;

step S614, if the predefined priority of the HARQ-ACK is lower than the priority of the CSI feedback, the CSI feedback is selected for transmission. The CSI feedback may be discarded when HARQ-ACK is selected for transmission, and the HARQ-ACK may be discarded when CSI feedback is selected for transmission.

For example, the priority of the HARQ-ACK of the predefined unicast transmission is higher than the priority of the CSI feedback. And when the HARQ-ACK of the unicast transmission and the CSI feedback collide, selecting the HARQ-ACK of the unicast transmission for transmission.

As another example, the priority of the HARQ-ACK of the predefined unicast transmission is lower than the priority of the CSI feedback. And when the HARQ-ACK of the unicast transmission and the CSI feedback collide, selecting the CSI feedback of the unicast transmission for transmission.

The above example is equally applicable to scenarios where a collision occurs between HARQ-ACK and CSI feedback for multicast transmissions.

In an example, the method is described by taking the second preset condition as an example that the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback are set as the examples.

As shown in fig. 9, the step S61 of selecting one of the HARQ-ACK or the CSI feedback for transmission according to the second preset condition includes:

step S615, the HARQ-ACK or CSI feedback with the most front position of the first symbol of the corresponding time domain resource or channel is selected for transmission.

The CSI feedback may be discarded when HARQ-ACK is selected for transmission, and the HARQ-ACK may be discarded when CSI feedback is selected for transmission.

For example, when a collision occurs between the unicast-transmitted HARQ-ACK and CSI feedback, the UE may determine a position of a first symbol of a time domain resource or channel corresponding to each HARQ-ACK and a position of a first symbol of the CSI feedback, compare a relationship between the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the CSI feedback, transmit the HARQ-ACK to the corresponding UE or base station and discard the CSI feedback if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is earlier, and transmit the CSI feedback to the corresponding UE or base station and discard the HARQ-ACK if the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback is earlier.

In a possible implementation manner, if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback, the HARQ-ACK or CSI feedback with the longest or shortest time domain duration corresponding to the HARQ-ACK is selected for transmission. For example, if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback, the time domain duration corresponding to the HARQ-ACK and the time domain duration corresponding to the CSI feedback may be compared, and the HARQ-ACK or CSI feedback having the longest or shortest corresponding time domain duration may be selected for transmission.

By the transmission method of HARQ-ACK of the above embodiment, when HARQ-ACK collides with CSI feedback, normal transmission can still be achieved when the position of the first symbol of the time domain resource or channel corresponding to HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to CSI feedback.

In a possible implementation manner, the present disclosure further provides a transmission method for hybrid automatic repeat Request acknowledgement HARQ-ACK, where the method is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between a unicast HARQ-ACK and an SR (Scheduling Request) for unicast transmission, or a collision occurs between a multicast HARQ-ACK and an SR for multicast transmission.

Fig. 10 illustrates a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 10, in a scenario where a collision occurs between HARQ-ACK and SR for unicast transmission, or a scenario where a collision occurs between HARQ-ACK and SR for multicast transmission, the method may include:

step S71, when collision occurs between HARQ-ACK and channel state information SR, one of HARQ-ACK or SR is selected to transmit according to a third preset condition;

wherein, the HARQ-ACK is unicast-transmitted HARQ-ACK or multicast-transmitted HARQ-ACK, and the SR may be used to request resources for sidelink transmission or Uu link transmission. In addition, the channel carrying the SR may be psch or PSCCH or PSFCH or PUCCH or PUSCH, and the disclosure does not limit the type of the channel carrying the SR.

In one possible implementation, the method may further include discarding HARQ-ACKs or SRs that are not transmitted. For example, if HARQ-ACK is selected for transmission according to a second preset condition, the SR is discarded; and if the SR is selected to transmit according to the second preset condition, discarding the HARQ-ACK.

In one possible implementation, the third preset condition is any one of the following:

the relation between the priority of PSSCH corresponding to HARQ-ACK and the priority threshold, the relation between the position of the first symbol of time domain resource or channel corresponding to HARQ-ACK and the position of the first symbol of time domain resource or channel corresponding to SR, and the predefined relation between the priority of HARQ-ACK and SR.

By the HARQ-ACK transmission method of the embodiment, the normal transmission of the HARQ-ACK can be realized in the scene of collision between the HARQ-ACK and the SR in unicast transmission or multicast transmission. The collision may be that the time-frequency resource or channel carrying the HARQ-ACK overlaps or partially overlaps with the time-frequency resource or channel carrying the SR in time, or the time-frequency resource or channel carrying the HARQ-ACK overlaps or partially overlaps with the time-frequency resource or channel carrying the SR in time and frequency domains.

The priority threshold may be indicated by the base station through higher layer signaling (e.g., RRC signaling), MAC-CE (MAC Control Element), or DCI (Downlink Control Information).

In one example, the method is described by taking the magnitude relation between the priority of the psch corresponding to the HARQ-ACK and the priority threshold as an example.

As shown in fig. 10, the step S71 of selecting one of the HARQ-ACK or the SR for transmission according to the second preset condition may include:

step S711, when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than a priority threshold, selecting the HARQ-ACK for transmission;

step S712, when the priority of the PSSCH corresponding to the HARQ-ACK is lower than the priority threshold, the SR is selected for transmission.

When HARQ-ACK is selected for transmission, the SR may be discarded, and when the SR is selected for transmission, the HARQ-ACK may be discarded.

For example, when collision occurs between the HARQ-ACK and the SR of the unicast transmission, the HARQ-ACK of the unicast transmission is selected for transmission when the priority of the PSSCH corresponding to the HARQ-ACK of the unicast transmission is not lower than the priority threshold. And when the priority of the PSSCH corresponding to the HARQ-ACK transmitted in the unicast mode is lower than a priority threshold, selecting the SR for transmission. The example is equally applicable to scenarios where a collision occurs between HARQ-ACK and SR for multicast transmission.

In one example, with the third preset condition: the predefined priority relationship between HARQ-ACK and SR is an example to illustrate the method.

As shown in fig. 10, the step S71 of selecting one of the HARQ-ACK or the SR for transmission according to the second preset condition includes:

step S713, if the priority of the predefined HARQ-ACK is higher than the priority of the SR, the HARQ-ACK is selected to be transmitted;

step S714, if the predefined priority of HARQ-ACK is lower than the priority of SR, then SR is selected for transmission.

When HARQ-ACK is selected for transmission, the SR may be discarded, and when the SR is selected for transmission, the HARQ-ACK may be discarded. For example, the priority of the HARQ-ACK of the predefined unicast transmission is higher than the priority of the SR. And when the HARQ-ACK of the unicast transmission and the SR collide, selecting the HARQ-ACK of the unicast transmission for transmission.

As another example, the priority of the HARQ-ACK of the predefined unicast transmission is lower than the priority of the SR. And when the HARQ-ACK of unicast transmission and the SR collide, selecting the SR for transmission.

The above example is equally applicable to scenarios where a collision occurs between HARQ-ACK and SR for multicast transmission.

In an example, the method is described by taking the third preset condition as an example that the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the SR are set as the first preset condition.

step S715, select the HARQ-ACK or SR with the first symbol position of the corresponding time domain resource or channel being the most advanced for transmission.

For example, when a collision occurs between unicast-transmitted HARQ-ACKs and SRs, the UE may determine a position of a first symbol of a time domain resource or channel corresponding to each HARQ-ACK and a position of a first symbol of the time domain resource or channel corresponding to the SR, compare a relationship between the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the SR, transmit the HARQ-ACK to the corresponding UE or base station and discard the SR if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is earlier, and transmit the SR to the corresponding UE or base station and discard the HARQ-ACK if the position of the first symbol of the time domain resource or channel corresponding to the SR is earlier.

In a possible implementation manner, if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to the SR, the HARQ-ACK or SR with the longest or shortest corresponding time domain duration is selected for transmission. For example, if the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to the SR, the time domain duration corresponding to the HARQ-ACK and the time domain duration corresponding to the SR may be compared, and the HARQ-ACK or SR having the longest or shortest corresponding time domain duration may be selected for transmission.

By the transmission method of HARQ-ACK in the above embodiment, when the HARQ-ACK collides with the SR, normal transmission can still be achieved when the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the same as the position of the first symbol of the time domain resource or channel corresponding to the SR.

In a possible implementation manner, the present disclosure further provides a transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, where the method is applied to a user equipment UE, and the method of this embodiment is applied to a scenario where a collision occurs between multiple unicast-transmitted HARQ-ACKs, or a collision occurs between multiple multicast-transmitted HARQ-ACKs, or a collision occurs between a unicast-transmitted HARQ-ACK and a multicast-transmitted HARQ-ACK. The following description will take a scenario in which a collision occurs between HARQ-ACKs of unicast transmission as an example. Fig. 11 shows a flowchart of a transmission method of HARQ-ACK according to an embodiment of the present disclosure. As shown in fig. 11, the method may include:

and step S81, when collision occurs among the HARQ-ACKs of the plurality of unicast transmissions, multiplexing the plurality of HARQ-ACKs on time-frequency resources or channels for transmission.

Multiplexing multiple HARQ-ACKs on a time-frequency resource or a channel for transmission may include:

step S811, determining a sequence corresponding to each HARQ-ACK;

step S812, selecting a time-frequency resource or a channel;

step S813, for each HARQ-ACK, multiplying the selected time-frequency resource or channel by the sequence corresponding to the HARQ-ACK in the time domain and/or the frequency domain to obtain a first time-frequency resource or channel, and transmitting the HARQ-ACK in the first time-frequency resource or channel.

The sequence may be an OCC (orthogonal cover code) sequence or a CS (cyclic shift) sequence. The time-frequency resource or channel selected by the sequence corresponding to the HARQ-ACK may be multiplied by the OCC sequence corresponding to the HARQ-ACK in the time domain, or multiplied by the CS sequence corresponding to the HARQ-ACK in the frequency domain. According to the method of the above embodiment, the time-frequency resources or channels carrying HARQ-ACK that are collided may be distinguished by multiplying by using different OCC sequences in the time domain, or the time-frequency resources or channels carrying HARQ-ACK that are collided may be distinguished by multiplying by using different CS sequences in the frequency domain, or the time-frequency resources or channels carrying HARQ-ACK that are collided may be distinguished by multiplying by using different OCC (orthogonal cover sequence) sequences in the time domain and multiplying by using different CS (cyclic shift) sequences in the frequency domain.

When collisions occur between the unicast transmitted HARQ-ACKs, these unicast transmitted HARQ-ACKs may be multiplexed on one particular time-frequency resource or channel. Wherein the specific time-frequency resource or channel may be psch or PSCCH or PSFCH or PUCCH or PUSCH, which may be determined by the base station through a higher layer signaling configuration or through a predefined rule.

Wherein, the predefined rule for selecting the time-frequency resource or channel for carrying the collided HARQ-ACK can be one of the following:

1. selecting the time frequency resource or channel which is the most front first symbol in the time frequency resources or channels bearing the HARQ-ACK and has collision;

2. and selecting the time frequency resource or channel occupying the maximum number of symbols in the time domain from the time frequency resources or channels bearing the HARQ-ACK and having collision.

3. Selecting any time frequency resource or channel in the time frequency resources or channels bearing the HARQ-ACK and having collision;

4. selecting the time frequency resource or channel which is closest to the first symbol in the time frequency resources or channels bearing the HARQ-ACK and has collision;

5. selecting the time frequency resource or channel with the highest priority of the corresponding PSCCH in the time frequency resources or channels bearing the HARQ-ACK and having the collision;

5. and selecting the time frequency resource or channel with the lowest priority of the corresponding PSCCH in the time frequency resources or channels carrying the HARQ-ACK which are collided.

The above embodiments may also be applied to the case where HARQ-ACK of unicast transmission collides with HARQ-ACK of multicast transmission, or the case where HARQ-ACK of multicast transmission collides with HARQ-ACK of multicast transmission. And will not be described in detail.

By the transmission method of the HARQ-ACK of the embodiment, when collision occurs among a plurality of HARQ-ACKs, normal transmission of all HARQ-ACKs can be realized.

In one possible implementation, the method may further include: the UE reports to the base station at least one of a maximum number of unicast transmissions that the UE can simultaneously support on a sidelink, a maximum number of multicast transmissions that can simultaneously support on a sidelink, a maximum number of a sum of unicast transmissions and multicast transmissions that can simultaneously support on a sidelink, a maximum number of HARQ processes of all unicast transmissions that can support on a sidelink, a maximum number of HARQ processes of all multicast transmissions that can support on a sidelink, a maximum number of a sum of HARQ processes of all unicast transmissions and all multicast transmissions that can support on a sidelink, a maximum number of a sum of HARQ processes of unicast transmissions and UE that can support on a Uu link that can be supported on a sidelink, whether the UE has the ability to become a group head (grouper) in multicast transmissions in a sidelink transmission, a maximum number of HARQ processes of unicast transmissions that can support on a sidelink, and a maximum number of HARQ processes of unicast transmissions that the UE can support on a Uu link that can support on a base station that can support a base station, Whether the UE has the ability to become the head of group in sidelink transmission.

In one possible implementation, the UE may report to the base station through higher layer signaling.

Thus, after receiving the content reported by the UE, the base station may perform corresponding configuration. For example, when the base station receives the maximum number of unicast transmissions that can be simultaneously supported by the UE on the sidelink, which is reported to the base station by the UE, the base station may configure the number of unicast transmissions of the UE on the sidelink to be the maximum number through high-layer signaling. According to the same principle, the base station can configure the number of the multicast transmission of the UE on the side link, the number of the sum of the unicast transmission and the multicast transmission on the side link, the number of the HARQ processes of the unicast transmission on the side link, the number of the HARQ processes of the multicast transmission on the side link, the number of the sum of the HARQ processes of the unicast transmission and the multicast transmission on the side link, the number of the sum of the HARQ processes of the unicast transmission on the side link and the HARQ processes of the UE on the Uu link, and the number of the sum of the HARQ processes of the multicast transmission on the side link and the HARQ processes of the UE on the Uu link through high-layer signaling.

In one possible implementation, the method may further include: the UE may report to the base station through high layer signaling the maximum number of unicast transmissions that the UE can support on the sidelink, the maximum number of multicast transmissions that can be supported on the sidelink, the maximum number of unicast transmissions and multicast transmissions that can be supported on the sidelink, the maximum number of HARQ processes for unicast transmissions that can be supported on the sidelink, the maximum number of HARQ processes for multicast transmissions that can be supported on the sidelink, and the maximum number of HARQ processes for unicast transmissions and multicast transmissions that can be supported on the sidelink. Therefore, the base station may also configure, through higher layer signaling, the number of unicast transmissions on the sidelink, the number of multicast transmissions on the sidelink, the number of the sum of unicast transmissions and multicast transmissions on the sidelink, the number of HARQ processes for unicast transmissions on the sidelink, the number of HARQ processes for multicast transmissions on the sidelink, and the number of the sum of HARQ processes for unicast transmissions and multicast transmissions on the sidelink for the UE.

In one possible implementation, the method may further include: the base station activates or deactivates the function of HARQ-ACK of multicast transmission through higher layer signaling or MAC-CE or DCI, the base station activates or deactivates the function of HARQ-ACK of unicast transmission through higher layer signaling or MAC-CE or DCI, and the base station activates or deactivates the function of HARQ-ACK of broadcast transmission through higher layer signaling or MAC-CE or DCI. In one possible implementation, the method may further include: the base station indicates whether the multicast adopts a feedback mode of only NACK or a feedback mode of simultaneously having ACK and NACK through high-layer signaling or MAC-CE or DCI. For example, the base station may indicate whether the multicast is a NACK-only feedback mode or an ACK and NACK feedback mode through 1-bit RRC (Radio resource control) signaling, for example, 0 may indicate that the NACK-only feedback mode is used, and 1 may indicate that the ACK and NACK feedback mode is used simultaneously.

In one possible implementation, the method may further include: the base station indicates whether the current transmission is unicast or multicast through higher layer signaling or MAC-CE or DCI, indicates whether the current transmission is unicast or broadcast through higher layer signaling or MAC-CE or DCI, indicates whether the current transmission is multicast or broadcast through higher layer signaling or MAC-CE or DCI, and indicates whether the current transmission is unicast, multicast or broadcast through higher layer signaling or MAC-CE or DCI. Wherein the current transmission may refer to a PSCCH transmission or a PSCCH transmission.

Fig. 12 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus may be applied to a User Equipment (UE), and the apparatus may include:

a first selecting module 91, configured to select, when a collision occurs between HARQ-ACKs of multiple unicast transmissions, a first HARQ-ACK that meets a first preset condition from the HARQ-ACKs of multiple unicast transmissions;

a first transmission module 92, configured to transmit the first HARQ-ACK.

In one possible implementation, the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the most front.

According to the device of the embodiment of the disclosure, by setting the first preset condition, when the HARQ-ACK of the plurality of unicast transmissions collide, the HARQ-ACK meeting the first preset condition is selected for transmission, so that the HARQ-ACK can still be normally transmitted when the HARQ-ACK of the plurality of unicast transmissions collide.

In one possible implementation, as shown in fig. 13, the apparatus may further include:

a second selecting module 93, configured to select, if the position of the first symbol of the time domain resource corresponding to the multiple unicast-transmitted HARQ-ACKs is the same, the HARQ-ACK with the longest time domain duration or the shortest time domain duration corresponding to the multiple unicast-transmitted HARQ-ACKs as the first HARQ-ACK, or select any one HARQ-ACK of the multiple unicast-transmitted HARQ-ACKs as the first HARQ-ACK.

A first discarding module 94 for discarding HARQ-ACKs of the plurality of unicast transmissions other than the first HARQ-ACK.

A first deferral module 95, configured to defer HARQ-ACKs other than the first HARQ-ACK among HARQ-ACKs of the plurality of unicast transmissions in sequence from high to low to a next transmission opportunity according to a priority of the pscch.

A second deferral module 96, configured to defer HARQ-ACKs other than the first HARQ-ACK among the plurality of unicast transmissions to a next transmission opportunity sequentially from front to back according to a position of a first symbol of a time domain resource.

In one possible implementation, the apparatus further includes:

and a first multiplexing transmission module 97, configured to multiplex the plurality of HARQ-ACKs and the destination address corresponding to each HARQ-ACK to a physical uplink control channel PUCCH for transmission when a collision occurs between the plurality of unicast HARQ-ACKs.

In one possible implementation, the apparatus further includes:

a reporting module 98, configured to report, by the UE, to the base station, at least one of the following information: the method comprises the steps that the maximum number of unicast transmissions which can be simultaneously supported by the UE on a side link, the maximum number of multicast transmissions which can be simultaneously supported by the UE on the side link, the maximum number of the sum of unicast transmissions and multicast transmissions which can be simultaneously supported by the side link, the maximum number of HARQ processes of all unicast transmissions which can be supported by the side link, the maximum number of HARQ processes of all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of all unicast transmissions and all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of unicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on a Uu link, and the maximum number of the sum of HARQ processes of multicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on the Uu link.

Fig. 14 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus may be applied to a User Equipment (UE), and the apparatus may include:

a third selecting module 101, configured to select, when a collision occurs between HARQ-ACKs of multiple multicast transmissions, a first HARQ-ACK that meets a first preset condition from the HARQ-ACKs of the multiple multicast transmissions;

a second transmission module 102, configured to transmit the first HARQ-ACK.

According to the device of the embodiment of the disclosure, by setting the first preset condition, when the HARQ-ACK of the multicast transmission collides, the HARQ-ACK meeting the first preset condition is selected for transmission, so that the HARQ-ACK of the multicast transmission can still be normally transmitted when the HARQ-ACK of the multicast transmission collides.

In one possible implementation, as shown in fig. 15, the apparatus may further include:

a fourth selecting module 103, configured to select, if the position of the first symbol of the time domain resource corresponding to the multiple multicast-transmitted HARQ-ACKs is the same, the HARQ-ACK with the longest time domain duration or the shortest time domain duration corresponding to the multiple multicast-transmitted HARQ-ACKs as the first HARQ-ACK, or select any one HARQ-ACK of the multiple multicast-transmitted HARQ-ACKs as the first HARQ-ACK.

A second discarding module 104, configured to discard HARQ-ACKs of the plurality of multicast transmissions except the first HARQ-ACK.

A third deferral module 106, configured to defer HARQ-ACKs other than the first HARQ-ACK of the plurality of multicast transmissions to a next transmission opportunity in sequence according to the priority of the psch.

A fourth deferral module 106, configured to defer HARQ-ACKs other than the first HARQ-ACK in the HARQ-ACKs of the multiple multicast transmissions sequentially from front to back to a next transmittable opportunity according to a position of a first symbol of a time domain resource.

And a second multiplexing transmission module 107, configured to multiplex the multiple HARQ-ACKs and the destination addresses corresponding to the multiple HARQ-ACKs to a physical uplink control channel PUCCH for transmission when a collision occurs between the multiple HARQ-ACKs for multicast transmission.

In one possible implementation, the apparatus further includes:

Fig. 16 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus may be applied to a User Equipment (UE), and the apparatus may include:

a fifth selecting module 111, configured to select, when a collision occurs between the unicast HARQ-ACK and the multicast HARQ-ACK, a HARQ-ACK with a highest priority for corresponding transmission from the unicast HARQ-ACK and the multicast HARQ-ACK for transmission.

In one possible implementation, unicast transmissions have a higher priority than multicast transmissions.

By the transmission device of HARQ-ACK of the embodiment, when the HARQ-ACK transmitted in unicast and the HARQ-ACK transmitted in multicast collide, the normal transmission of the HARQ-ACK can be realized without comparing the priority of the PSSCH corresponding to the HARQ-ACK.

In one possible implementation, the apparatus may further include one or more of the following modules:

a third discarding module 112 for discarding the HARQ-ACK of the corresponding transmission with low priority,

a fifth deferral module 113 for deferring a low priority HARQ-ACK for a corresponding transmission to the next transmission opportunity for transmission.

In one possible implementation, the apparatus may further include:

a sixth selecting module 114, configured to select, when a collision occurs between the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK, a HARQ-ACK with a highest priority of the corresponding pscsch from the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK for transmission;

a sixth deferral module 115 for deferring a low priority HARQ-ACK for the corresponding pscch for transmission to the next transmission opportunity.

In one possible implementation, the apparatus further includes:

a reporting module 98 (not shown) for reporting, by the UE, to the base station, at least one of the following information: the method comprises the steps that the maximum number of unicast transmissions which can be simultaneously supported by the UE on a side link, the maximum number of multicast transmissions which can be simultaneously supported by the UE on the side link, the maximum number of the sum of unicast transmissions and multicast transmissions which can be simultaneously supported by the side link, the maximum number of HARQ processes of all unicast transmissions which can be supported by the side link, the maximum number of HARQ processes of all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of all unicast transmissions and all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of unicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on a Uu link, and the maximum number of the sum of HARQ processes of multicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on the Uu link.

Fig. 17 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus may be applied to a User Equipment (UE), and the apparatus may include:

a seventh selecting module 121, configured to select, when a collision occurs between HARQ-ACKs of multiple unicast transmissions and HARQ-ACKs of multicast transmissions, a first HARQ-ACK that meets a first preset condition from the HARQ-ACKs of multiple unicast transmissions;

an eighth selecting module 122, configured to select, from the first HARQ-ACK and the HARQ-ACK of the multicast transmission, a HARQ-ACK with a highest priority of corresponding transmission or PSSCH for transmission.

By the transmission device of HARQ-ACK of the embodiment, the normal transmission of HARQ-ACK can be realized in the scene of collision between the HARQ-ACK of a plurality of unicast transmissions and the HARQ-ACK of multicast transmissions.

In one possible implementation, the apparatus further includes:

a reporting module, configured to report at least one of the following information to a base station by the UE: the method comprises the steps that the maximum number of unicast transmissions which can be simultaneously supported by the UE on a side link, the maximum number of multicast transmissions which can be simultaneously supported by the UE on the side link, the maximum number of the sum of unicast transmissions and multicast transmissions which can be simultaneously supported by the side link, the maximum number of HARQ processes of all unicast transmissions which can be supported by the side link, the maximum number of HARQ processes of all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of all unicast transmissions and all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of unicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on a Uu link, and the maximum number of the sum of HARQ processes of multicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on the Uu link.

Fig. 18 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus is applicable to a User Equipment (UE), and the apparatus may include:

a ninth selecting module 131, configured to select a first HARQ-ACK that meets a first preset condition from HARQ-ACKs of multiple multicast transmissions when a collision occurs between the HARQ-ACK of unicast transmission and the HARQ-ACKs of the multiple multicast transmissions;

a tenth selecting module 132, configured to select, from the first HARQ-ACK and the HARQ-ACK of the unicast transmission, a HARQ-ACK with a highest priority of corresponding transmission or PSSCH for transmission.

By the transmission device of HARQ-ACK of the embodiment, the normal transmission of HARQ-ACK can be realized in the scene of collision between the HARQ-ACK of unicast transmission and the HARQ-ACK of a plurality of multicast transmissions.

In one possible implementation, the apparatus further includes:

Fig. 19 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus is applicable to a User Equipment (UE), and the apparatus may include:

an eleventh selecting module 141, configured to select one of the HARQ-ACK or the CSI feedback for transmission according to a second preset condition when a collision occurs between the HARQ-ACK and the CSI feedback;

In one possible implementation, the second preset condition is any one of the following:

By the transmission device of the HARQ-ACK of the embodiment, the normal transmission of the HARQ-ACK can be realized in the scene of collision between the HARQ-ACK and CSI feedback of unicast transmission or multicast transmission.

In one possible implementation manner, the second preset condition is a size relationship between a priority of the psch corresponding to the HARQ-ACK and a priority threshold,

the eleventh selection module 141 includes:

a first selecting unit 1411, configured to select HARQ-ACK for transmission when the priority of the psch corresponding to the HARQ-ACK is not lower than the priority threshold;

a second selecting unit 1412, configured to select CSI feedback for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is lower than the priority threshold.

In a possible implementation manner, the second preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback,

the eleventh selection module 141 includes:

a third selecting unit 1413, configured to select the HARQ-ACK or CSI feedback with the first symbol of the corresponding time domain resource or channel being located at the top for transmission.

In a possible implementation manner, the second preset condition is: a predefined priority relationship of HARQ-ACK to CSI feedback,

the eleventh selection module 141 includes:

a fourth selecting unit 1414, configured to select HARQ-ACK for transmission if the predefined priority of HARQ-ACK is higher than the priority of CSI feedback;

a fifth selecting unit 1415, configured to select the CSI feedback for transmission if the predefined priority of HARQ-ACK is lower than the priority of CSI feedback.

In one possible implementation, the apparatus further includes:

Fig. 20 shows a block diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present disclosure. The apparatus is applicable to a User Equipment (UE), and the apparatus may include:

a twelfth selecting module 151, configured to select one of the HARQ-ACK and the SR for transmission according to a third preset condition when a collision occurs between the HARQ-ACK and the channel state information SR;

By the transmission device of the HARQ-ACK of the embodiment, the normal transmission of the HARQ-ACK can be realized in the scene of collision between the HARQ-ACK and the SR in unicast transmission or multicast transmission.

In a possible implementation manner, the third preset condition is a size relationship between a priority of the psch corresponding to the HARQ-ACK and a priority threshold,

the twelfth selection module 151 includes:

a sixth selecting unit 1511, configured to select HARQ-ACK for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than the priority threshold;

a seventh selecting unit 1512, configured to select the SR for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is lower than the priority threshold.

In a possible implementation manner, the third preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the position of the first symbol of the time domain resource or channel corresponding to the SR,

the twelfth selection module 151 includes:

an eighth selecting unit 1513, configured to select the HARQ-ACK or SR with the first symbol of the corresponding time domain resource or channel being located at the top for transmission.

In a possible implementation manner, the third preset condition is: a predefined priority relationship of HARQ-ACK to SR,

the twelfth selection module 151 includes:

a ninth selecting unit 1514, configured to select HARQ-ACK for transmission if the predefined priority of HARQ-ACK is higher than the priority of SR;

a tenth selecting unit 1515, configured to select the SR for transmission if the predefined priority of HARQ-ACK is lower than the priority of the SR.

In one possible implementation, the apparatus further includes:

Fig. 21 is a block diagram illustrating an apparatus 800 for transmission of HARQ-ACK in accordance with an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 21, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the device 800 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

transmitting the first HARQ-ACK.

2. The method of claim 1, further comprising:

discarding HARQ-ACKs of the plurality of unicast transmissions other than the first HARQ-ACK.

3. The method according to claim 1 or 2, characterized in that the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the most front.

4. The method of claim 3, further comprising:

and sequentially postponing HARQ-ACK except the first HARQ-ACK in the plurality of unicast transmission HARQ-ACK to the next transmission opportunity according to the priority of PSSCH from high to low.

5. The method of claim 3, further comprising:

and sequentially postponing HARQ-ACKs except the first HARQ-ACK in the plurality of unicast transmitted HARQ-ACKs to the next transmission opportunity from front to back according to the position of the first symbol of the time domain resource for transmission.

6. The method of claim 3, further comprising:

and if the position of the first symbol of the time domain resource corresponding to the HARQ-ACK of the unicast transmission is the same, selecting the HARQ-ACK with the longest or shortest time domain duration corresponding to the HARQ-ACK of the unicast transmission as the first HARQ-ACK, or selecting any one HARQ-ACK of the unicast transmission as the first HARQ-ACK.

7. The method of claim 1, further comprising:

when collision occurs among the HARQ-ACK of the plurality of unicast transmissions, multiplexing the plurality of HARQ-ACK and the destination address corresponding to each HARQ-ACK to a physical uplink control channel PUCCH for transmission.

8. The method of claim 1, further comprising:

the UE reports to the base station at least one of the following information: the method comprises the steps that the maximum number of unicast transmissions which can be simultaneously supported by the UE on a side link, the maximum number of multicast transmissions which can be simultaneously supported by the UE on the side link, the maximum number of the sum of unicast transmissions and multicast transmissions which can be simultaneously supported by the side link, the maximum number of HARQ processes of all unicast transmissions which can be supported by the side link, the maximum number of HARQ processes of all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of all unicast transmissions and all multicast transmissions which can be supported by the side link, the maximum number of the sum of HARQ processes of unicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on a Uu link, and the maximum number of the sum of HARQ processes of multicast transmissions which can be supported by the side link and HARQ processes which can be supported by the UE on the Uu link.

9. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

transmitting the first HARQ-ACK.

10. The method of claim 9, further comprising:

discarding HARQ-ACKs of the plurality of multicast transmissions other than the first HARQ-ACK.

11. The method according to claim 9 or 10, wherein the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

12. The method of claim 11, further comprising:

and sequentially postponing HARQ-ACK except the first HARQ-ACK in the plurality of multicast transmission to the next transmission opportunity according to the priority of PSSCH from high to low.

13. The method of claim 11, further comprising:

and delaying HARQ-ACK except the first HARQ-ACK in the plurality of multicast transmission HARQ-ACK to the next transmission opportunity in sequence from front to back according to the position of the first symbol of the time domain resource.

14. The method of claim 11, further comprising:

and if the position of the first symbol of the time domain resource corresponding to the HARQ-ACK of the multicast transmission is the same, selecting the HARQ-ACK with the longest or shortest time domain duration corresponding to the HARQ-ACK of the multicast transmission as the first HARQ-ACK, or selecting any one HARQ-ACK of the multicast transmission as the first HARQ-ACK.

15. The method of claim 9, further comprising:

when the HARQ-ACK of a plurality of multicast transmissions collide, the plurality of HARQ-ACK and the destination address corresponding to each HARQ-ACK are multiplexed to a physical uplink control channel PUCCH for transmission.

16. The method of claim 9, further comprising:

17. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

18. The method of claim 17, wherein unicast transmissions have a higher priority than multicast transmissions.

19. The method according to claim 17 or 18, further comprising:

the HARQ-ACKs of the corresponding transmission with low priority are discarded,

or,

the HARQ-ACK with the low priority for the corresponding transmission is deferred to the next transmission opportunity for transmission.

20. The method of claim 17, further comprising:

when collision occurs between the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK, selecting the HARQ-ACK with the highest priority of the corresponding PSSCH from the unicast-transmitted HARQ-ACK and the multicast-transmitted HARQ-ACK for transmission;

the low priority HARQ-ACK for the corresponding PSSCH is deferred until the next transmission opportunity for transmission.

21. The method of claim 17, further comprising:

22. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

23. The method according to claim 22, wherein the first preset condition is any one of the following: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

24. The method according to claim 22 or 23, further comprising:

25. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

26. The method according to claim 25, wherein the first preset condition is any one of the following: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

27. The method of claim 25 or 26, further comprising:

28. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

29. The method according to claim 28, wherein the second preset condition is any one of the following:

30. The method of claim 28, wherein the second predetermined condition is a relation between a priority of the PSSCH corresponding to the HARQ-ACK and a priority threshold,

selecting one of HARQ-ACK or CSI feedback for transmission according to a second preset condition, comprising:

when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than the priority threshold, selecting the HARQ-ACK for transmission;

and when the priority of the PSSCH corresponding to the HARQ-ACK is lower than a priority threshold, selecting CSI feedback for transmission.

31. The method according to claim 28, wherein the second preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback,

and selecting the HARQ-ACK or CSI feedback with the most front position of the first symbol of the corresponding time domain resource or channel for transmission.

32. The method according to claim 28, wherein the second preset condition is: a predefined priority relationship of HARQ-ACK to CSI feedback,

if the predefined priority of the HARQ-ACK is higher than the priority of the CSI feedback, the HARQ-ACK is selected to be transmitted;

and if the predefined priority of the HARQ-ACK is lower than the priority of the CSI feedback, selecting the CSI feedback for transmission.

33. The method according to any one of claims 28-32, further comprising:

34. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to User Equipment (UE), and comprises the following steps:

35. The method according to claim 34, wherein the third preset condition is any one of the following:

36. The method of claim 34, wherein the third preset condition is a size relationship between a priority of PSSCH corresponding to HARQ-ACK and a priority threshold,

selecting one of the HARQ-ACK or the SR to transmit according to a second preset condition, comprising the following steps:

and when the priority of the PSSCH corresponding to the HARQ-ACK is lower than a priority threshold, selecting the SR for transmission.

37. The method according to claim 34, wherein the third preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the position of the first symbol of the time domain resource or channel corresponding to the SR,

and selecting the HARQ-ACK or SR with the first symbol of the corresponding time domain resource or channel positioned most at the front for transmission.

38. The method according to claim 34, wherein the third preset condition is: a predefined priority relationship of HARQ-ACK to SR,

if the priority of the predefined HARQ-ACK is higher than that of the SR, selecting the HARQ-ACK for transmission;

and if the priority of the predefined HARQ-ACK is lower than that of the SR, selecting the SR for transmission.

39. The method according to any one of claims 34-38, further comprising:

40. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

a first transmission module, configured to transmit the first HARQ-ACK.

41. The apparatus of claim 40, further comprising:

a first discarding module to discard HARQ-ACKs of the plurality of unicast transmissions other than the first HARQ-ACK.

42. The apparatus according to claim 40 or 41, wherein the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the most front.

43. The apparatus of claim 42, further comprising:

a first deferral module, configured to defer HARQ-ACKs other than the first HARQ-ACK among HARQ-ACKs of the plurality of unicast transmissions in sequence from high to low to a next transmission opportunity according to a priority of the psch for transmission.

44. The apparatus of claim 42, further comprising:

and a second deferring module, configured to defer HARQ-ACKs, except the first HARQ-ACK, of the plurality of unicast transmissions to a next transmission opportunity sequentially from front to back according to a position of a first symbol of a time domain resource.

45. The apparatus of claim 42, further comprising:

and a second selecting module, configured to select, if the position of the first symbol of the time domain resource corresponding to the multiple unicast-transmitted HARQ-ACKs is the same, the HARQ-ACK with the longest or shortest time domain duration corresponding to the multiple unicast-transmitted HARQ-ACKs as the first HARQ-ACK, or select any one of the multiple unicast-transmitted HARQ-ACKs as the first HARQ-ACK.

46. The apparatus of claim 40, further comprising:

and the first multiplexing transmission module is used for multiplexing the plurality of HARQ-ACKs and the destination address corresponding to each HARQ-ACK to a physical uplink control channel PUCCH for transmission when the plurality of unicast-transmitted HARQ-ACKs collide.

47. The apparatus of claim 40, further comprising:

48. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

a second transmission module for transmitting the first HARQ-ACK.

49. The apparatus of claim 48, further comprising:

a second discarding module for discarding HARQ-ACKs of the plurality of multicast transmissions other than the first HARQ-ACK.

50. The apparatus of claim 48 or 49, wherein the first preset condition is any one of the following: the physical side link shared channel PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

51. The apparatus of claim 50, further comprising:

and the third deferring module is used for deferring the HARQ-ACK except the first HARQ-ACK in the plurality of multicast transmission to the next transmission opportunity in sequence according to the priority of the PSSCH.

52. The apparatus of claim 50, further comprising:

and a fourth deferring module, configured to defer HARQ-ACKs, except the first HARQ-ACK, of the HARQ-ACKs for the multiple multicast transmissions sequentially from front to back to a next available transmission opportunity according to a position of a first symbol of a time domain resource.

53. The apparatus of claim 50, further comprising:

and the fourth selecting module is used for selecting the HARQ-ACK with the longest or shortest time domain duration corresponding to the HARQ-ACK of the multicast transmission as the first HARQ-ACK or selecting any HARQ-ACK of the multicast transmission as the first HARQ-ACK if the position of the first symbol of the time domain resource corresponding to the HARQ-ACK of the multicast transmission is the same.

54. The apparatus of claim 48, further comprising:

and the second multiplexing transmission module is used for multiplexing the plurality of HARQ-ACKs and the destination address corresponding to each HARQ-ACK to a physical uplink control channel PUCCH for transmission when the plurality of HARQ-ACKs of multicast transmission collide.

55. The apparatus of claim 48, further comprising:

56. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

57. The apparatus of claim 56, wherein unicast transmissions have a higher priority than multicast transmissions.

58. The apparatus of claim 56 or 57, further comprising one or more of the following modules:

a third discarding module for discarding the HARQ-ACK with low priority corresponding to the transmission,

a fifth deferral module for deferring a low priority HARQ-ACK of a corresponding transmission for transmission to a next transmission opportunity.

59. The apparatus of claim 56, further comprising:

a sixth selection module, configured to select a HARQ-ACK with a highest priority for a corresponding pscsch from the unicast HARQ-ACK and the multicast HARQ-ACK for transmission when a collision occurs between the unicast HARQ-ACK and the multicast HARQ-ACK;

a sixth deferral module for deferring a low priority HARQ-ACK of the corresponding PSSCH to transmission to a next transmittable opportunity.

60. The apparatus of claim 56, further comprising:

61. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

62. The apparatus according to claim 61, wherein the first preset condition is any one of the following: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

63. The apparatus of claim 61 or 62, further comprising:

64. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

65. The apparatus according to claim 64, wherein the first preset condition is any one of the following: the PSSCH corresponding to the HARQ-ACK has the highest priority, and the position of the first symbol of the time domain resource corresponding to the HARQ-ACK is the most front.

66. The apparatus of claim 64 or 65, further comprising:

67. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

68. The apparatus according to claim 67, wherein the second preset condition is any one of the following:

69. The apparatus of claim 67, wherein the second preset condition is a size relationship between a priority of PSSCH corresponding to HARQ-ACK and a priority threshold,

the eleventh selecting module comprises:

the first selection unit is used for selecting the HARQ-ACK to transmit when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than a priority threshold;

and the second selection unit is used for selecting the CSI feedback for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is lower than a priority threshold.

70. The apparatus according to claim 67, wherein the second preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK and the position of the first symbol of the time domain resource or channel corresponding to the CSI feedback,

the eleventh selecting module comprises:

and the third selection unit is used for selecting the HARQ-ACK or CSI feedback with the most front position of the first symbol of the corresponding time domain resource or channel for transmission.

71. The apparatus according to claim 67, wherein the second preset condition is: a predefined priority relationship of HARQ-ACK to CSI feedback,

the eleventh selecting module comprises:

a fourth selection unit, configured to select HARQ-ACK for transmission if the predefined priority of HARQ-ACK is higher than the priority of CSI feedback;

and the fifth selection unit is used for selecting the CSI feedback for transmission if the predefined HARQ-ACK priority is lower than the CSI feedback priority.

72. The apparatus of any one of claims 67-71, further comprising:

73. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the apparatus being applied to a User Equipment (UE), the apparatus comprising:

74. The apparatus according to claim 73, wherein the third preset condition is any one of the following:

75. The apparatus of claim 73, wherein the third preset condition is a size relationship between a priority of a PSSCH corresponding to HARQ-ACK and a priority threshold,

the twelfth selection module includes:

a sixth selecting unit, configured to select the HARQ-ACK for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is not lower than the priority threshold;

and the seventh selection unit is used for selecting the SR for transmission when the priority of the PSSCH corresponding to the HARQ-ACK is lower than the priority threshold.

76. The apparatus according to claim 73, wherein the third preset condition is: the position of the first symbol of the time domain resource or channel corresponding to the HARQ-ACK is the position of the first symbol of the time domain resource or channel corresponding to the SR,

the twelfth selection module includes:

and the eighth selecting unit is used for selecting the HARQ-ACK or SR with the most front position of the first symbol of the corresponding time domain resource or channel for transmission.

77. The apparatus according to claim 73, wherein the third preset condition is: a predefined priority relationship of HARQ-ACK to SR,

the twelfth selection module includes:

a ninth selecting unit, configured to select HARQ-ACK for transmission if the predefined priority of HARQ-ACK is higher than the priority of SR;

a tenth selecting unit, configured to select the SR for transmission if the predefined priority of HARQ-ACK is lower than the priority of the SR.

78. The apparatus of any one of claims 73-77, further comprising:

79. An apparatus for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to execute the instructions to implement the method of any one of claims 1-8;

alternatively, the processor is configured to execute the instructions to implement the method of any one of claims 9-16;

alternatively, the processor is configured to execute the instructions to implement the method of any one of claims 17-21;

alternatively, the processor is configured to execute the instructions to implement the method of any of claims 22-24;

alternatively, the processor is configured to execute the instructions to implement the method of any of claims 25-27;

alternatively, the processor is configured to execute the instructions to implement the method of any one of claims 28-33;

alternatively, the processor is configured to execute the instructions to implement the method of any of claims 34-39.

80. A non-transitory computer readable storage medium having stored thereon computer program instructions, which when executed by a processor implement the method of any one of claims 1 to 8, or the method of any one of claims 9 to 16, or the method of any one of claims 17 to 21, or the method of any one of claims 22 to 24, or the method of any one of claims 25 to 27, or the method of any one of claims 28 to 33, or the method of any one of claims 34 to 39.