CN111106903B

CN111106903B - Feedback method, receiving method, terminal and network device for hybrid automatic repeat request

Info

Publication number: CN111106903B
Application number: CN201910440104.7A
Authority: CN
Inventors: 司倩倩; 高雪娟
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-10-26
Filing date: 2019-05-24
Publication date: 2021-06-04
Anticipated expiration: 2039-05-24
Also published as: CN111106903A; TWI730468B; TW202032937A

Abstract

The invention provides a feedback method, a receiving method, a terminal and network equipment for hybrid automatic repeat request, and relates to the technical field of communication. The feedback method of the hybrid automatic repeat request is applied to a terminal and comprises the following steps: when the terminal needs to feed back at least two SPS PDSCH transmissions in the same time slot, determining a first PUCCH resource for feeding back HARQ-ACK of the at least two SPS PDSCH transmissions; multiplexing HARQ-ACK of at least two SPS PDSCH transmissions on a first PUCCH resource; and feeding back HARQ-ACK transmitted by at least two SPS PDSCH to the network equipment through the first PUCCH resource. According to the scheme, when the terminal needs to feed back the transmission of at least two SPS PDSCH in the same time slot, the HARQ-ACK transmitted by the at least two SPS PDSCH is multiplexed on the same PUCCH resource for feeding back, so that the transmission of a plurality of HARQ-ACK in the same time slot is ensured, the transmission performance is improved, and the reliability of network communication is ensured.

Description

Feedback method, receiving method, terminal and network device for hybrid automatic repeat request

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a feedback method, a receiving method, a terminal, and a network device for hybrid automatic repeat request.

Background

In a New Radio (NR) Rel-15, only one Physical Uplink Control Channel (PUCCH) is allowed to be used in one slot to transmit Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK). If Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH) transmission is supported to be configured on multiple carriers of a carrier group at the same time, there is a problem that if a terminal needs to perform HARQ-ACK feedback on two SPS PDSCH transmissions in one time slot, the existing scheme does not implement how to perform HARQ-ACK feedback on the two SPS PDSCHs at the same time.

In addition, even if a plurality of PUCCHs are subsequently used for transmitting HARQ-ACK in one slot, the PUCCH resources corresponding to two SPS PDSCHs may overlap in time, and how to transmit the PUCCH resources corresponding to the SPS PDSCHs with the time overlapping occurs does not have a corresponding solution in the prior art.

Disclosure of Invention

The embodiment of the invention provides a feedback method, a receiving method, a terminal and network equipment for hybrid automatic repeat request (HARQ-ACK), and aims to solve the problems that a plurality of HARQ-ACKs cannot be effectively fed back by an existing HARQ-ACK transmission mechanism and the transmission performance is low when only one PUCCH is allowed to be used for transmitting the HARQ-ACK in one time slot or PUCCH resources corresponding to two SPS PDSCHs are overlapped in time.

In order to solve the above technical problem, an embodiment of the present invention provides a feedback method for harq, which is applied to a terminal, and includes:

when a terminal needs to feed back at least two semi-persistent scheduling physical downlink shared channels (SPSPDSCH) transmission in the same time slot, determining a first Physical Uplink Control Channel (PUCCH) resource for feeding back hybrid automatic repeat request (HARQ-ACK) of at least two SPS PDSCH transmissions;

multiplexing HARQ-ACK of the at least two SPS PDSCH transmissions on a first PUCCH resource;

feeding back HARQ-ACK of the at least two SPS PDSCH transmissions to a network device through the first PUCCH resource.

Further, the determining the first physical uplink control channel PUCCH resource for feeding back hybrid automatic repeat request information HARQ-ACK for at least two SPS PDSCH transmissions includes:

and determining a first PUCCH resource for feeding back HARQ-ACK of the at least two SPS PDSCH transmissions according to a preset rule.

Optionally, the preset rule includes at least one of the following ways:

taking a PUCCH resource corresponding to SPS PDSCH transmission with the minimum carrier number as the first PUCCH resource;

determining a PUCCH resource with the latest starting time as the first PUCCH resource in PUCCH resources corresponding to the at least two SPS PDSCH transmissions;

determining the PUCCH resource corresponding to the latest SPS PDSCH as the first PUCCH resource in the PUCCH resources corresponding to the at least two SPS PDSCH transmissions;

and when the PUCCH resources corresponding to the at least two SPS PDSCH transmissions use different PUCCH formats, determining the first PUCCH resource according to the PUCCH formats.

Specifically, the latest SPS PDSCH is the SPS PDSCH latest in the order of carrier numbers and/or the order of reception times.

Specifically, the determining the first PUCCH resource according to the PUCCH format includes:

and determining PUCCH resources corresponding to the first PUCCH format as the first PUCCH resources according to the PUCCH format.

Optionally, when the network device configures two PUCCH resources for at least one SPS PDSCH of the at least two SPS PDSCHs, one PUCCH resource using a second PUCCH format carrying less than or equal to 2 bits, and another PUCCH resource using a third PUCCH format carrying more than 2 bits, the preset rule includes:

when two SPS PDSCH transmissions need to be fed back, determining the PUCCH resources using the second PUCCH format as the first PUCCH resources; or

And when more than two SPS PDSCH transmissions need to be fed back, determining the PUCCH resource using the third PUCCH format as the first PUCCH resource.

Specifically, determining a PUCCH resource using the second PUCCH format as the first PUCCH resource includes:

and selecting one PUCCH resource from the PUCCH resources using the second PUCCH format corresponding to the two SPS PDSCH transmissions and determining the selected PUCCH resource as the first PUCCH resource.

Specifically, determining a PUCCH resource using the third PUCCH format as the first PUCCH resource includes:

and selecting one PUCCH resource from the PUCCH resources using the third PUCCH format corresponding to the more than two SPS PDSCH transmissions to determine the selected PUCCH resource as the first PUCCH resource.

Optionally, the multiplexing the HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource comprises:

cascading HARQ-ACKs transmitted by at least two SPS PDSCHs according to the ascending sequence of carrier numbers and/or the sequence of receiving time to generate a feedback codebook;

and loading the feedback codebook on the first PUCCH resource.

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same time slot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, multiplexing the HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource includes:

determining a transmission sequence corresponding to two-bit HARQ-ACK according to an initial cyclic shift parameter configured for the first PUCCH resource by the network equipment and a cyclic shift offset parameter of the transmission sequence corresponding to the 2-bit HARQ-ACK, and loading the transmission sequence on a resource block of the first PUCCH resource; or

If the initial cyclic shift parameters configured for the PUCCH resources corresponding to the two SPS PDSCH transmissions by the network equipment are different, determining a transmission sequence corresponding to two-bit HARQ-ACK by adopting the initial cyclic shift parameters respectively configured for the PUCCH resources corresponding to the two SPS PDSCH transmissions by the network equipment, and loading the transmission sequence on a resource block of the first PUCCH resource.

Optionally, when the number of SPS PDSCH transmissions to be fed back in the same time slot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs use a second PUCCH format carrying less than or equal to 2 bits, multiplexing HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource includes:

combining the HARQ-ACK feedback bits transmitted by the at least two SPS PDSCH to generate feedback information less than or equal to 2 bits;

and loading the feedback information on the first PUCCH resource.

Further, the combining the HARQ-ACK feedback bits of the at least two SPS PDSCH transmissions to generate feedback information less than or equal to 2 bits includes:

performing AND operation on the 1-bit HARQ-ACK transmitted by the at least two SPS PDSCH to generate 1-bit feedback information; or

And dividing the at least two SPS PDSCH transmissions into two groups, and performing AND operation on the 1-bit HARQ-ACK transmitted by the SPS PDSCH in each group to generate 2-bit feedback information.

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, multiplexing the HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource includes:

when the bit number of the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs is smaller than the bit number of the minimum uplink control information UCI correspondingly transmitted by the third PUCCH format, supplementing target bits to the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs;

loading the HARQ-ACK feedback bit sequence after bit complementing on the first PUCCH resource;

wherein the number of the target bits is equal to the number of bits of the minimum UCI minus the number of bits of the HARQ-ACK feedback bit sequence.

when the first PUCCH resource uses PUCCH format one, a HARQ-ACK feedback bit sequence is obtained according to the transmission of the at least two SPS PDSCHs, the HARQ-ACK feedback bit sequence is modulated to obtain a modulation symbol, and the modulation symbol is placed on the first PUCCH resource using PUCCH format one for transmission.

Specifically, the method for modulating the HARQ-ACK feedback bit sequence includes: a quadrature amplitude modulation QAM scheme or a phase shift keying PSK modulation scheme.

The embodiment of the invention also provides a receiving method of hybrid automatic repeat request, which is applied to network equipment and comprises the following steps:

receiving hybrid automatic repeat request (HARQ-ACK) transmitted by at least two semi-persistent scheduling physical downlink shared channel (SPS) PDSCH fed back by a terminal through first Physical Uplink Control Channel (PUCCH) resources;

wherein HARQ-ACK of at least two SPS PDSCH transmissions are multiplexed in a first PUCCH resource.

Optionally, before the hybrid automatic repeat request acknowledgement information HARQ-ACK transmitted by at least two semi-persistent scheduling physical downlink shared channels SPS PDSCH fed back by the receiving terminal through the first physical uplink control channel PUCCH resource, the method further includes:

and determining a first PUCCH resource used when the terminal feeds back HARQ-ACK transmitted by at least two SPS PDSCH according to a preset rule.

Further, the preset rule comprises at least one of the following modes:

Further, determining a PUCCH resource using the second PUCCH format as the first PUCCH resource includes:

Further, determining a PUCCH resource using the third PUCCH format as the first PUCCH resource includes:

obtaining a multiplexing rule of HARQ-ACK of the at least two SPS PDSCH transmissions.

Further, the multiplexing rule includes:

and performing cascade connection on the HARQ-ACKs transmitted by the at least two SPS PDSCHs according to the ascending sequence of the carrier numbers and/or the sequence of the receiving time to generate a feedback codebook.

Further, when there are two SPS PDSCH transmissions to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, the multiplexing rule includes:

determining a transmission sequence corresponding to two-bit HARQ-ACK according to an initial cyclic shift parameter configured for the first PUCCH resource by the network equipment and a cyclic shift offset parameter of a transmission sequence corresponding to 2-bit HARQ-ACK; or

And if the initial cyclic shift parameters configured for the PUCCH resources corresponding to the two SPS PDSCH transmissions by the network equipment are different, determining the transmission sequence corresponding to the two-bit HARQ-ACK by adopting the initial cyclic shift parameters respectively configured for the PUCCH resources corresponding to the two SPS PDSCH transmissions by the network equipment.

Further, when the number of SPS PDSCH transmissions to be fed back in the same time slot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs all use a second PUCCH format carrying less than or equal to 2 bits, the multiplexing rule includes:

and combining the HARQ-ACK feedback bits transmitted by the at least two SPS PDSCH to generate feedback information less than or equal to 2 bits.

Specifically, the combining the HARQ-ACK feedback bits of the at least two SPS PDSCH transmissions to generate feedback information less than or equal to 2 bits includes:

Further, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, the multiplexing rule includes:

Optionally, the multiplexing rule includes:

when the first PUCCH resource uses PUCCH format one, a HARQ-ACK feedback bit sequence is obtained according to the transmission of the at least two SPS PDSCHs, the HARQ-ACK feedback bit sequence is modulated to obtain a modulation symbol, and the modulation symbol is placed on the first PUCCH resource using PUCCH format one.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; wherein the processor implements the following steps when executing the computer program:

when a terminal needs to feed back at least two semi-persistent scheduling physical downlink shared channel (SPS) PDSCH transmissions in the same time slot, determining a first Physical Uplink Control Channel (PUCCH) resource for feeding back hybrid automatic repeat request (HARQ-ACK) of the at least two SPS PDSCH transmissions;

Optionally, the processor, when executing the computer program, implements the following steps:

Further, the preset rule comprises at least one of the following modes:

In particular, the processor, when executing the computer program, implements the steps of:

Further, when the network device configures two PUCCH resources for at least one of the at least two SPS PDSCHs, one PUCCH resource using a second PUCCH format carrying less than or equal to 2 bits and the other PUCCH resource using a third PUCCH format carrying more than 2 bits, the preset rule includes:

and loading the feedback codebook on the first PUCCH resource.

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, the processor implements the following steps when executing the computer program:

Optionally, when the number of SPS PDSCH transmissions to be fed back in the same timeslot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs all use a second PUCCH format carrying less than or equal to 2 bits, the processor implements the following steps when executing the computer program:

and loading the feedback information on the first PUCCH resource.

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, the processor implements the following steps when executing the computer program:

The embodiment of the invention also provides network equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; wherein the processor implements the following steps when executing the computer program:

Optionally, the processor, when executing the computer program, further implements the following steps:

Further, the preset rule comprises at least one of the following modes:

Further, the multiplexing rule includes:

Optionally, the multiplexing rule includes:

when the first PUCCH resource uses PUCCH format one, a HARQ-ACK feedback bit sequence is obtained according to the transmission of the at least two SPSPDSCHs, the HARQ-ACK feedback bit sequence is modulated to obtain a modulation symbol, and the modulation symbol is placed on the first PUCCH resource using PUCCH format one.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the above-mentioned feedback method for hybrid automatic repeat request or the above-mentioned receiving method for hybrid automatic repeat request.

An embodiment of the present invention further provides a terminal, including:

the terminal comprises a determining module and a transmitting module, wherein the determining module is used for determining a first Physical Uplink Control Channel (PUCCH) resource for feeding back hybrid automatic repeat request (HARQ-ACK) of at least two SPS (physical downlink shared channel) PDSCH (physical downlink shared channel) transmissions when the terminal needs to feed back the at least two SPS PDSCH transmissions in the same time slot;

a multiplexing module to multiplex HARQ-ACK of the at least two SPS PDSCH transmissions on a first PUCCH resource;

a feedback module, configured to feed back HARQ-ACKs of the at least two SPS PDSCH transmissions to a network device through the first PUCCH resource.

An embodiment of the present invention further provides a network device, including:

the receiving module is used for receiving hybrid automatic repeat request (HARQ-ACK) transmitted by at least two semi-persistent scheduling physical downlink shared channel (SPS) PDSCH fed back by a terminal through first Physical Uplink Control Channel (PUCCH) resources;

The invention has the beneficial effects that:

according to the scheme, when the terminal needs to feed back the transmission of at least two SPS PDSCH in the same time slot, the HARQ-ACK transmitted by the at least two SPS PDSCH is multiplexed on the same PUCCH resource and fed back to the network equipment, so that the HARQ-ACK transmitted by a plurality of SPS PDSCH can be transmitted in the same time slot, the transmission performance is improved, and the reliability of network communication is ensured.

Drawings

Fig. 1 is a flow chart illustrating a feedback method of harq according to an embodiment of the present invention;

fig. 2 shows one of the transmission state diagrams of SPS PDSCH transmission on a carrier;

fig. 3 shows a second schematic diagram of the transmission state of SPS PDSCH transmission on a carrier;

fig. 4 shows a third schematic diagram of the transmission state of SPS PDSCH transmission on a carrier;

fig. 5 shows a fourth schematic diagram of the transmission state of SPS PDSCH transmission on a carrier;

fig. 6 shows five schematic views of the transmission state of SPS PDSCH transmission on a carrier;

fig. 7 is a flowchart illustrating a method for receiving a hybrid automatic repeat request according to an embodiment of the present invention;

fig. 8 shows a block diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a diagram showing a configuration of a terminal according to an embodiment of the present invention;

FIG. 10 is a block diagram of a network device according to an embodiment of the invention;

fig. 11 is a diagram showing a configuration of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Some concepts mentioned in the embodiments of the present invention are first explained as follows.

In a New Radio (NR) system of a fifth Generation mobile communication technology (5th-Generation, 5G), Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH) transmission and PDSCH (dynamic PDCSH) transmission with a corresponding Physical Downlink Control Channel (PDCCH) are supported. When the SPS PDSCH service is configured, the higher layer signaling may correspondingly configure a Radio Network Temporary Identity (RNTI) corresponding to the SPS, which is used to scramble the PDCCH for the SPS PDSCH, and may also correspondingly configure a transmission interval of the SPS PDSCH.

The high-level signaling configures N candidate Hybrid Automatic Repeat request (HARQ-ACK) timing values for the terminal in advance, where a value range of N is 1 to 8. HARQ-ACK timing of PDSCH with PDCCH by "log" in PDCCH₂(N)]The bit HARQ-ACK timing indication field indicates any one of N values pre-configured by the higher layer signaling. For the SPS PDSCH, because the corresponding PDCCH does not exist, the HARQ-ACK timing of the SPS PDSCH is determined by the HARQ-ACK timing indication field in the PDCCH for activating SPS PDSCH transmission, and the same HARQ-ACK timing value is used in the SPS PDSCH transmission process.

For PDSCH transmission with PDCCH, the Physical Uplink Control Channel (PUCCH) Resource used for HARQ-ACK feedback is determined according to the PUCCH Resource Indication (PRI) information field in PDCCH. The high-level signaling configures 8-16 candidate PUCCH resources for the terminal in advance, and indicates one of the candidate PUCCH resources to be used by the terminal through a 3-bit PRI (when the number of the configured PUCCH resources is greater than 8, the Control Channel Element (CCE) index of the PDCCH needs to be combined for determination). For SPS PDSCH transmission, if the corresponding HARQ-ACK and the HARQ-ACK corresponding to the PDSCH transmission with the PDCCH are fed back in the same time slot, the transmission is carried out on PUCCH resources corresponding to the PDSCH with the PDCCH in a multiplexing mode. If only SPS PDSCH transmits corresponding HARQ-ACK feedback in one time slot, the used PUCCH resource cannot be determined by the PRI in the PDCCH because the corresponding PDCCH does not exist. The protocol specifies that a dedicated PUCCH resource is configured for the SPS PDSCH through high-layer signaling, and the PUCCH format 0 or PUCCH format 1 can be used, so that the dedicated PUCCH resource for the SPS PDSCH supports 2-bit HARQ-ACK feedback at most.

When only one SPS PDSCH transmission is configured, if the terminal receives only one SPS PDSCH, the terminal performs feedback on the corresponding dedicated PUCCH resource. The problem that exists at present is that when SPS PDSCH transmission is configured on multiple carriers of a carrier group at the same time, if a terminal receives only two SPS PDSCHs fed back in the same slot, the two SPS PDSCHs may correspond to different PUCCH resources. According to the rules of Rel-15, only one PUCCH is allowed to be used for transmitting the HARQ-ACK in one time slot, so that the terminal cannot simultaneously use two different PUCCH resources to respectively transmit the HARQ-ACK feedback information corresponding to the SPS PDSCH. Alternatively, multiple PUCCH bearers HARQ-ACK may be supported in Rel-16, but when PUCCH resources corresponding to two SPS PDSCH overlap in time, the terminal cannot transmit the two PUCCH resources at the same time. If the HARQ-ACK feedback information corresponding to one SPS PDSCH is discarded, the base station may not know whether the terminal correctly receives the SPS PDSCH transmission, which may affect the transmission performance. Therefore, in order to avoid discarding the HARQ-ACK feedback information of the SPS PDSCH, the HARQ-ACK information of two SPS PDSCHs needs to be multiplexed for transmission, but there is no clear scheme at present.

The invention provides a feedback method, a receiving method, a terminal and network equipment for hybrid automatic repeat request (HARQ-ACK), aiming at the problems that the prior HARQ-ACK transmission mechanism can not enable a plurality of HARQ-ACKs to carry out effective feedback and has lower transmission performance when only one PUCCH is allowed to be used for transmitting the HARQ-ACK in one time slot or PUCCH resources corresponding to two SPS PDSCH are overlapped in time.

As shown in fig. 1, a feedback method of harq according to an embodiment of the present invention is applied to a terminal, and includes:

step 11, when the terminal needs to feed back at least two semi-persistent scheduling physical downlink shared channel (SPS) PDSCH transmissions in the same time slot, determining a first Physical Uplink Control Channel (PUCCH) resource for feeding back hybrid automatic repeat request (HARQ-ACK) of the at least two SPS PDSCH transmissions;

it should be noted that, in the embodiment of the present invention, the SPS PDSCH transmission may refer to an actually received SPS PDSCH transmission or may also refer to an SPS PDSCH transmission opportunity, that is, at least two SPS PDSCH transmissions include: actually received SPS PDSCH transmission and/or SPS PDSCH transmission opportunity to be fed back, and further, the SPS PDSCH transmission opportunity to be fed back refers to: the terminal does not receive the SPS PDSCH transmission in the SPS PDSCH transmission opportunity, but still needs to feedback on it.

It should be noted that the time slot may be a time slot having 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols, or may be a sub-time slot smaller than 14 OFDM symbols.

The first PUCCH resource is one or more of PUCCH resources corresponding to at least two SPS PDSCH transmissions.

Step 12, multiplexing the HARQ-ACK transmitted by the at least two SPS PDSCH on a first PUCCH resource;

by multiplexing the HARQ-ACK on the same PUCCH resource, the transmission of multiple HARQ-ACKs on the same time slot can be realized.

And step 13, feeding back HARQ-ACK transmitted by the at least two SPS PDSCH to network equipment through the first PUCCH resource.

It should be noted that, the specific implementation manner of step 11 is as follows:

The preset rule may be implemented in one or more of the following ways.

The modes A1,

it should be noted that, because SPS PDSCH transmission is performed on corresponding carriers, each SPS PDSCH transmission corresponds to one carrier, and different carriers are distinguished by different carrier numbers, in this way, a PUCCH resource corresponding to SPS PDSCH transmission with the smallest carrier number is selected for HARQ-ACK multiplexing.

The modes A2,

it should be noted that the distribution time of different PUCCH resources on a slot is different, and the start time refers to the time when PUCCH resource transmission starts; in this implementation, the multiplexing of HARQ-ACK is performed by selecting the PUCCH resource with the latest time for starting PUCCH resource transmission.

The modes A3,

it should be noted that the PUCCH resource corresponding to the latest SPS PDSCH refers to a PUCCH resource corresponding to the latest received SPS PDSCH or a PUCCH resource corresponding to the latest SPS PDSCH transmission opportunity; further, the latest SPS PDSCH is the latest SPS PDSCH in order of carrier numbers and/or order of reception time; for example, the latest SPS PDSCH may be determined only in the order of carrier numbers; the latest SPS PDSCH may be determined only in the order of reception time; the latest SPS PDSCH can also be determined simultaneously according to the order of the carrier numbers and the order of the reception times, in which case the terminal can determine first according to the order of the carrier numbers and then according to the order of the reception times; the terminal may also determine the carrier number in the order of the reception time.

The modes A4,

When the PUCCH resources corresponding to the at least two SPS PDSCH transmissions use different PUCCH formats, determining the first PUCCH resource according to the PUCCH formats;

further, the implementation manner is specifically as follows: and determining PUCCH resources corresponding to the first PUCCH format as the first PUCCH resources according to the PUCCH format.

The first PUCCH format refers to any one of PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, and PUCCH format 4, and the PUCCH resources in PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, and PUCCH format 4 may be preferentially selected as the highest priority resource.

Specifically, when at least one SPS PDSCH is configured with PUCCH resources carrying more than 2 bits, any one of PUCCH format 2, PUCCH format 3, and PUCCH format 4 is selected as the first PUCCH resource. It should be noted that, since PUCCH format 2, PUCCH format 3, and PUCCH format 4 carry at least 3 bits of HARQ-ACK information, when the feedback information of SPS PDSCH is less than 3 bits, 3 bits of HARQ-ACK feedback information can be obtained by complementing 0 at the end.

The modes A5,

When the network device configures two PUCCH resources for at least one SPS PDSCH of the at least two SPS PDSCHs, one PUCCH resource using a second PUCCH format carrying less than or equal to 2 bits, and the other PUCCH resource using a third PUCCH format carrying more than 2 bits, the preset rule is implemented in one of the following manners:

mode a51, when two SPS PDSCH transmissions need to be fed back, determining the PUCCH resource using the second PUCCH format as the first PUCCH resource;

the further realization mode is as follows: selecting one PUCCH resource from PUCCH resources using a second PUCCH format corresponding to the two SPS PDSCH transmissions and determining the PUCCH resource as a first PUCCH resource; in general, the selection range of PUCCH resources is all PUCCH resources using the second PUCCH format corresponding to two SPS PDSCH transmissions. In a specific selection mode, the corresponding second format PUCCH resource may be selected according to the SPS PDSCH with the later transmission end position, or the corresponding second format PUCCH resource may be selected according to the carrier number of the SPS PDSCH with the smallest number or the carrier number of the SPS PDSCH with the largest number, or the latest PUCCH resource starting from the second format PUCCH resources corresponding to the two SPS PDSCHs may be selected.

The second PUCCH format includes PUCCH format 0 and PUCCH format 1.

For example, when there are two SPS PDSCH transmissions, the format of PUCCH resource 1 corresponding to the first SPS PDSCH transmission is PUCCH format 0, and the format of PUCCH resource 2 is PUCCH format 2; the format of the PUCCH resource 3 corresponding to the second SPS PDSCH transmission is PUCCH format 1, the format of the PUCCH resource 4 is PUCCH format 3, and according to the above implementation, one PUCCH resource determined as HARQ-ACK multiplexing two SPS PDSCH transmissions is selected from PUCCH resources 1 and PUCCH resources 3 respectively corresponding to PUCCH format 0 and PUCCH format 1.

Mode a52, when more than two SPS PDSCH transmissions need to be fed back, determining the PUCCH resource using the third PUCCH format as the first PUCCH resource;

the further realization mode is as follows: selecting one PUCCH resource from PUCCH resources using a third PUCCH format corresponding to the more than two SPS PDSCH transmissions to determine the selected PUCCH resource as a first PUCCH resource; typically, the selection range of PUCCH resources is more than two PUCCH resources using the third PUCCH format for SPS PDSCH transmission. In a specific selection mode, the selection can be performed according to one of the following rules or by using two or three rules in combination:

1) selecting a third format PUCCH resource corresponding to the SPS PDSCH transmission with the latest transmission end position in the more than two SPS PDSCH transmissions;

2) selecting a third format PUCCH resource corresponding to the SPS PDSCH transmission with the minimum carrier number or the maximum carrier number in the more than two SPS PDSCH transmissions;

3) selecting a starting latest PUCCH resource of third format PUCCH resources corresponding to the more than two SPS PDSCH transmissions.

The third PUCCH format includes PUCCH format 2, PUCCH format 3, and PUCCH format 4.

For example, there are three SPS PDSCH transmissions, located on three carriers, respectively, the first SPS PDSCH transmission is located on carrier 1, the format of the corresponding PUCCH resource 1 is PUCCH format 3, and the format of PUCCH resource 2 is PUCCH format 0; the second SPS PDSCH transmission is on carrier 2, the format of the corresponding PUCCH resource 3 is PUCCH format 4, and the format of PUCCH resource 4 is PUCCH format 1; the third SPS PDSCH transmission is on carrier 3, and the format of the corresponding PUCCH resource 5 is PUCCH format 4, and the format of PUCCH resource 6 is PUCCH format 1. According to the implementation mode, one PUCCH resource determined as the HARQ-ACK multiplexing three SPS PDSCH transmissions is selected from

PUCCH resources

1, 3 and 5 corresponding to

PUCCH formats

3 and 4. When selecting among the three PUCCH resources, specifically, a third format PUCCH resource corresponding to SPS PDSCH transmission with the smallest carrier number may be selected, for example, PUCCH resource 1 corresponding to SPS PDSCH transmission on carrier 1 is selected; or selecting the SPS with the latest transmission end position in the SPS PDSCH transmission to select the corresponding third format PUCCH resource, and if the SPS PDSCH transmission end position on the carrier 3 is the latest, selecting the PUCCH resource 5 corresponding to the SPS PDSCH transmission on the carrier 3; alternatively, the PUCCH resource with the latest start among the third format PUCCH resources corresponding to SPS PDSCH transmission is selected, for example, the PUCCH resource 3 with the latest end position among PUCCH resource 1, PUCCH resource 3, and PUCCH resource 5 may be selected as the PUCCH resource multiplexing HARQ-ACKs of three SPS PDSCH transmissions.

It should be further noted that, in the embodiment of the present invention, step 12 may be implemented in at least one of the following manners:

the mode B1,

Cascading HARQ-ACKs transmitted by at least two SPS PDSCHs according to the ascending sequence of carrier numbers and/or the sequence of receiving time to generate a feedback codebook; and loading the feedback codebook on the first PUCCH resource.

It should be noted that, when the feedback codebook is generated by cascading, the terminal may cascade only according to the ascending order of the carrier numbers of the carriers where the SPS PDSCH is transmitted; the concatenation may also be performed only in the order of the time when the terminal receives the SPS PDSCH transmissions; the terminal can also perform the HARQ-ACK cascade connection of SPS PDSCH transmission according to the ascending sequence of the carrier numbers of the carriers where the SPS PDSCH transmission is located and the sequence of the time for receiving the SPS PDSCH transmission by the terminal.

The mode B2,

When there are two SPS PDSCH transmissions to be fed back in the same time slot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, step 12 is implemented in one of the following manners:

mode B21, determining a transmission sequence corresponding to two-bit HARQ-ACK according to the initial cyclic shift parameter configured for the first PUCCH resource by the network device and the cyclic shift offset parameter of the transmission sequence corresponding to 2-bit HARQ-ACK, and loading the transmission sequence on the resource block of the first PUCCH resource;

mode B22, if the initial cyclic shift parameters configured by the network device for the PUCCH resources corresponding to the two SPS PDSCH transmissions are different, determining a transmission sequence corresponding to two-bit HARQ-ACK by using the initial cyclic shift parameters respectively configured by the network device for the PUCCH resources corresponding to the two SPS PDSCH transmissions, and loading the transmission sequence on the resource block of the first PUCCH resource.

In the method B22, the terminal may determine the transmission sequence of HARQ-ACK according to the correspondence relationship shown in table 1.

TABLE 1 corresponding relationship table of cyclic shift values of transmission sequences corresponding to HARQ-ACK

Note that the initial cyclic shift parameter described above corresponds to m in table 1₀。

The mode B3,

When the number of SPS PDSCH transmissions to be fed back in the same time slot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs all use the second PUCCH format carrying less than or equal to 2 bits, the step 12 is implemented in the following manner:

combining the HARQ-ACK feedback bits transmitted by the at least two SPS PDSCH to generate feedback information less than or equal to 2 bits; and loading the feedback information on the first PUCCH resource.

It should be noted that, the implementation manners for combining the HARQ-ACK feedback bits include the following two implementation manners:

mode B31, performing and operation on the 1-bit HARQ-ACK transmitted by the at least two SPS PDSCHs, and generating 1-bit feedback information;

mode B32, dividing the at least two SPS PDSCH transmissions into two groups, performing an and operation on HARQ-ACKs transmitted by the SPS PDSCH in each group to generate 1-bit feedback information, and generating 2-bit feedback information by the two SPS PDSCH groups;

in this case, one bit is generated for each SPS PDSCH transmission in each group, and then all bits in each group are directly combined.

The mode B4,

When two SPS PDSCH transmissions needing to be fed back in the same time slot are transmitted and the PUCCH resources configured by the network device for each of the two SPS PDSCHs use a third PUCCH format carrying more than 2 bits, the implementation manner of step 12 is:

when the bit number of the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs (the bit number refers to the sum of the bit numbers of the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs) is less than the bit number of the minimum uplink control information UCI correspondingly transmitted by the third PUCCH format, supplementing target bits to the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs; loading the HARQ-ACK feedback bit sequence after bit complementing on the first PUCCH resource;

It should be noted that, in this manner, when the number of bits that can be carried by the selected PUCCH format is greater than the number of bits of the HARQ-ACK that needs to be fed back, zero padding (or NACK padding) is performed on bits that are not padded with the HARQ-ACK, and normally, the HARQ-ACK occupies earlier bits and the bits that are subjected to the zero padding are placed at the end of the PUCCH format. For example, when the selected PUCCH format is PUCCH format 2 and is used to carry HARQ-ACK feedback information with more than 2 bits, and the HARQ-ACK bit to be fed back is 1 bit, two 0 s are supplemented after the 1 bit of the HARQ-ACK to be fed back, so as to generate 3-bit feedback information in total, and actually transmit the 3-bit HARQ-ACK feedback information on PUCCH format 2, where the first bit is the HARQ-ACK bit to be fed back.

It should be noted that, when the first PUCCH resource uses PUCCH format one (i.e., PUCCH format 1 described above), the specific implementation manner of step 13 described above is:

when the first PUCCH resource uses PUCCH format one, an HARQ-ACK feedback bit sequence is obtained according to the transmission of the at least two SPSPDSCHs, the HARQ-ACK feedback bit sequence is modulated to obtain a modulation symbol, and the modulation symbol is placed on the first PUCCH resource using PUCCH format one for transmission.

Specifically, the method for modulating the HARQ-ACK feedback bit sequence includes: a Quadrature Amplitude Modulation (QAM) scheme or a Phase Shift Keying (PSK) modulation scheme.

For example, if two SPS PDSCH transmissions need to be fed back, QPSK modulation or 4QAM modulation is performed on 2-bit feedback information corresponding to the two SPS PDSCH transmissions to obtain one QPSK or 4QAM modulation symbol for transmission on a PUCCH resource of PUCCH format 1; or

If the three SPS PDSCH transmissions need to be fed back, carrying out 8QAM (quadrature amplitude modulation) or 8PSK (phase shift keying) modulation on 3-bit feedback information corresponding to the three SPS PDSCH transmissions to obtain an 8QAM or 8PSK modulation symbol for transmitting on a PUCCH (physical uplink control channel) resource of PUCCH format 1; or

If the four SPS PDSCH transmissions need to be fed back, carrying out 16QAM modulation or 16PSK modulation on 4-bit feedback information corresponding to the four SPS PDSCH transmissions to obtain a 16QAM or 16PSK modulation symbol for transmitting on a PUCCH resource of PUCCH format 1; or

If the five SPS PDSCH transmissions need to be fed back, carrying out 32QAM (quadrature amplitude modulation) or 32PSK (phase shift keying) modulation on 5-bit feedback information corresponding to the five SPS PDSCH transmissions to obtain a 32QAM or 32PSK modulation symbol for transmitting on PUCCH resources in PUCCH format 1; or

If the six SPS PDSCH transmissions need to be fed back, carrying out 64QAM (quadrature amplitude modulation) or 64PSK (phase shift keying) modulation on 6-bit feedback information corresponding to the six SPS PDSCH transmissions to obtain a 64QAM or 64PSK modulation symbol for transmitting on a PUCCH resource with PUCCH format 1; or

If seven SPS PDSCH transmissions need to be fed back, performing 128QAM (quadrature amplitude modulation) or 128PSK (phase shift keying) modulation on 7-bit feedback information corresponding to the seven SPS PDSCH transmissions to obtain a 128QAM or 128PSK modulation symbol for transmitting on a PUCCH (physical uplink control channel) resource of PUCCH format 1;

and if the eight SPS PDSCH transmissions need to be fed back, 256QAM (quadrature amplitude modulation) or 256PSK (phase shift keying) modulation is carried out on 8-bit feedback information corresponding to the eight SPS PDSCH transmissions, and a 256QAM or 256PSK modulation symbol is obtained to be transmitted on a PUCCH resource with PUCCH format 1.

It should be noted that, the above mentioned only gives the modulation modes of the HARQ-ACK feedback information with 2 to 8 bits, and for the cases of more than 8 bits, which are not listed, one modulation symbol can be generated through QAM or PSK modulation.

It should be noted that, in practical applications, different modulation orders may not be used for each bit number, some preferred modulation orders may be selectively defined and used, then, 0-complementing operation is performed on some bit numbers without corresponding modulation order definition to make the bit numbers reach the bit numbers defined by the corresponding modulation order, and then, the corresponding modulation order is used for modulation. For example, X bits may be

The same modulation scheme is used for the bits. Specifically, if X and

if the values of (A) are different, the X bits are converted into a value by complementing 0 at the end

Bits and then reused

QAM or

The PSK modulation mode carries out modulation, wherein X is a positive integer greater than or equal to 2.

It should be noted that, similar to the terminal side, the network device side also determines the first PUCCH resource for transmitting HARQ-ACK for at least two SPS PDSCH transmissions and determines the feedback information based on the similar rule.

Examples of the invention in specific applications are illustrated below.

Application scenarios I,

Assume that the base station (i.e., the network device mentioned above) configures two carriers for the terminal, and the configured K1 set is {1,2,3,4,5 }. As shown in fig. 2, it is assumed that the base station configures SPS PDSCH transmission on both carriers, in the activation signaling corresponding to SPS PDSCH on carrier 1, Downlink Control Information (DCI) indicates that the used HARQ feedback timing is 4, and in the activation signaling corresponding to SPS PDSCH on carrier 2, DCI indicates that the used HARQ feedback timing is 5, and if SPS PDSCH on carrier 1 exists in time slot n-4 and SPS PDSCH on carrier 2 exists in time slot n-5, HARQ-ACK feedback for SPS PDSCH on both carriers is transmitted in time slot n. Suppose that the HARQ-ACK of the SPS PDSCH on the carrier 1 corresponds to PUCCH resource 1 configured by the high-level signaling, the HARQ-ACK of the SPS PDSCH on the carrier 2 corresponds to PUCCH resource 2 configured by the high-level signaling, and both the PUCCH resource 1 and the PUCCH resource 2 correspond to PUCCH formats carrying 2 bits at most. When the terminal receives only two SPS PDSCH transmissions in slot n-5 to slot n-1, the terminal selects PUCCH resources by:

the first method is as follows: the terminal selects the PUCCH resource corresponding to the SPS PDSCH with the minimum carrier number for transmission, namely selects the PUCCH resource 1 corresponding to the SPS PDSCH transmission on the carrier 1 for transmitting the HARQ-ACK information of the two SPS PDSCHs;

the second method comprises the following steps: the terminal selects the PUCCH resource with the latest starting time in the PUCCH resources corresponding to the SPS PDSCH transmission, namely selects the PUCCH resource with the latest starting time in the PUCCH resource 1 and the PUCCH resource 2, namely the terminal finally selects the PUCCH resource 2 to transmit HARQ-ACK information of two SPS PDSCHs;

the third method comprises the following steps: the terminal selects the PUCCH resource corresponding to the PUCCH format with the highest priority, and assumes that PUCCH resource 1 uses PUCCH format 1 and PUCCH resource 2 uses PUCCH format 0, and since the priority corresponding to PUCCH format 0 is the highest, the terminal finally selects PUCCH resource 2 to transmit HARQ-ACK information of two SPDSCH;

the method is as follows: assuming that PUCCH resources 1 and PUCCH resources 2 both use PUCCH format 0 and the corresponding RB resources are completely overlapped, the base station configures an initial cyclic shift parameter of 0 for PUCCH resource 1 and an initial cyclic shift parameter of 2 for PUCCH resource 2, on the corresponding RB,

case 1: the cyclic shift value of the transmission sequence corresponding to the 2-bit HARQ-ACK transmitted by the terminal is shown in table 2:

table 2, first correspondence table of cyclic shift values of transmission sequences corresponding to 2-bit HARQ-ACK

Case 2: the cyclic shift value of the transmission sequence corresponding to the 2-bit HARQ-ACK transmitted by the terminal is shown in table 3:

table 3, second correspondence table of cyclic shift values of transmission sequences corresponding to 2-bit HARQ-ACK

The terminal concatenates HARQ-ACK information corresponding to two SPS PDSCHs according to the ascending sequence of carrier numbers to generate a 2-bit feedback codebook, wherein the first bit corresponds to the HARQ-ACK information of the SPS PDSCH on the carrier 1, the second bit corresponds to the HARQ-ACK information of the SPS PDSCH on the carrier 2, and then the feedback codebook is placed on the selected PUCCH resource for transmission.

Application scenarios II,

Suppose the base station configures three carriers for the terminal, and the configured K1 set is {1,2,3,4,5 }. Suppose that the base station configures SPS PDSCH transmission on three carriers, HARQ-ACK of the SPS PDSCH on the carrier 1 corresponds to PUCCH resource 1 and PUCCH resource 4 configured by high-level signaling, HARQ-ACK of the SPS PDSCH on the carrier 2 corresponds to PUCCH resource 2 and PUCCH resource 5 configured by high-level signaling, HARQ-ACK of the SPS PDSCH on the carrier 3 corresponds to PUCCH resource 3 and PUCCH resource 6 configured by high-level signaling, wherein PUCCH resources 1-3 correspond to PUCCH formats carrying 2 bits at most, and PUCCH resources 4-6 correspond to PUCCH formats carrying more than 2 bits. In the activation signaling corresponding to the SPS PDSCH on the carrier 1, the DCI indicates that the used HARQ feedback timing is 4, in the activation signaling corresponding to the SPS PDSCH on the carrier 2, the DCI indicates that the used HARQ feedback timing is 5, and in the activation signaling corresponding to the SPS PDSCH on the carrier 3, the DCI indicates that the used HARQ feedback timing is 3.

Case 1, as shown in fig. 3, in time slot n-5 to time slot n-1, the terminal needs to receive SPS PDSCH on carrier 2 in time slot n-5 and carrier 3 in time slot n-3, with HARQ-ACK feedback for SPS PDSCH on both carriers transmitted in time slot n. Since the number of SPS PDSCHs that need to be fed back is 2, the terminal needs to select a PUCCH resource carrying 2 bits at most for feedback, that is, the terminal needs to select one of PUCCH resource 1, PUCCH resource 2, and PUCCH resource 3 to transmit HARQ-ACK feedback information. Specifically, the terminal selects the PUCCH resource as follows:

the first method is as follows: the terminal selects the PUCCH resource corresponding to the SPS PDSCH with the minimum carrier number for transmission, and because the carrier 2 number in the carrier receiving the SPS PDSCH is the minimum, the terminal transmits HARQ-ACK information of two SPS PDSCHs by using the PUCCH resource 2 corresponding to the SPS PDSCH transmission on the carrier 2;

the second method comprises the following steps: the terminal transmits PUCCH resources with the latest starting time in corresponding PUCCH resources transmitted by all SPS PDSCH, and the terminal transmits HARQ-ACK information of two SPS PDSCH in PUCCH resource 3 because the starting time of PUCCH resource 3 in the PUCCH resources transmitted by the received SPS PDSCH is the latest;

the terminal cascades HARQ-ACK information corresponding to SPS PDSCH of carrier 2 and carrier 3 according to the ascending sequence of carrier numbers to generate a 2-bit feedback codebook, wherein the first bit corresponds to the HARQ-ACK information of SPS PDSCH on carrier 2, the second bit corresponds to the HARQ-ACK information of SPS PDSCH on carrier 3, and then the feedback codebook is placed on the selected PUCCH resource for transmission.

Case 2, as shown in fig. 4, in time slot n-5 to time slot n-1, the terminal needs to receive SPS PDSCH in time slot n-4 on carrier 1, time slot n-5 on carrier 2, and time slot n-3 on carrier 3, and HARQ-ACK feedback for SPS PDSCH on all three carriers is transmitted in time slot n. Since the number of SPS PDSCHs that need to be fed back is 3, the terminal needs to select a PUCCH resource carrying more than 2 bits for feedback, that is, the terminal needs to select one of PUCCH resource 4, PUCCH resource 5 and PUCCH resource 6 to transmit HARQ-ACK feedback information. Specifically, the terminal selects the PUCCH resource by:

the first method is as follows: the terminal selects the PUCCH resource corresponding to the SPS PDSCH with the minimum carrier number for transmission, and because the carrier 1 number in the carrier receiving the SPS PDSCH is the minimum, the terminal transmits HARQ-ACK information of two SPS PDSCHs by using the PUCCH resource 1 corresponding to the SPS PDSCH transmission on the carrier 1;

the terminal concatenates HARQ-ACK information corresponding to SPS PDSCH of carrier 1, carrier 2 and carrier 3 according to the ascending order of carrier numbers to generate a 3-bit feedback codebook, wherein the first bit corresponds to the HARQ-ACK information of SPS PDSCH on carrier 1, the second bit corresponds to the HARQ-ACK information of SPS PDSCH on carrier 2, and the third bit corresponds to the HARQ-ACK information of SPS PDSCH on carrier 3, and then the feedback codebook is placed on the selected PUCCH resource for transmission.

Application scenarios III,

Suppose the base station configures three carriers for the terminal, and the configured K1 set is {1,2,3,4,5 }. Suppose the base station configures SPS PDSCH transmission on three carriers, HARQ-ACK of SPS PDSCH on the carrier 1 corresponds to PUCCH resource 1 configured by the high-level signaling, HARQ-ACK of SPS PDSCH on the carrier 2 corresponds to PUCCH resource 2 configured by the high-level signaling, and HARQ-ACK of SPS PDSCH on the carrier 3 corresponds to PUCCH resource 3 configured by the high-level signaling. In the activation signaling corresponding to the SPS PDSCH on the carrier 1, the DCI indicates that the used HARQ feedback timing is 4, in the activation signaling corresponding to the SPS PDSCH on the carrier 2, the DCI indicates that the used HARQ feedback timing is 5, and in the activation signaling corresponding to the SPS PDSCH on the carrier 3, the DCI indicates that the used HARQ feedback timing is 3.

In case 1, PUCCH resources 1 to 3 all correspond to PUCCH formats carrying more than 2 bits, as shown in fig. 5, in a time slot n-5 to a time slot n-1, a terminal needs to receive an SPS PDSCH in a time slot n-5 on a carrier 2 and a time slot n-3 on a carrier 3, and HARQ-ACK feedback of the SPS PDSCH on the two carriers is transmitted in the time slot n. Similar to the PUCCH resource determination method in the application scenario two described above, the terminal may select PUCCH resource 2 or PUCCH resource 3 to transmit HARQ-ACK information, but when generating the feedback codebook, since 2 SPS PDSCHs correspond to only 2-bit HARQ-ACK feedback information, the terminal needs to complement 0 at the end of the feedback information so that feedback information up to 3 bits is transmitted on the selected PUCCH resource.

In case 2, PUCCH resources 1 to 3 all correspond to PUCCH formats carrying 2 bits at maximum, as shown in fig. 6, in a time slot n-5 to a time slot n-1, a terminal needs to receive an SPS PDSCH in a time slot n-4 on a carrier 1, a time slot n-5 on a carrier 2, and a time slot n-3 on a carrier 3, and HARQ-ACK feedback of the SPS PDSCH on the three carriers is transmitted in the time slot n. Similar to the PUCCH resource determining method in the application scenario two, the terminal may select PUCCH resource 1 or PUCCH resource 3 to transmit HARQ-ACK information, but when generating the feedback codebook, the HARQ-ACK feedback information corresponding to 3 SPS PDSCHs needs to be combined, and finally 1-bit feedback information is generated and transmitted on the selected PUCCH resource.

It should be noted that, the embodiment of the present invention provides a HARQ-ACK feedback method for SPS PDSCHs, and if a terminal only needs to perform HARQ-ACK feedback on two SPS PDSCH transmissions in one time slot, feedback information of the two SPS PDSCHs is multiplexed on one PUCCH resource for transmission according to a preset rule, so that it can be ensured that the terminal performs feedback on both SPS PDSCHs, and the problem of transmission performance degradation caused by discarding the HARQ-ACK of one SPS PDSCH is avoided, thereby ensuring reliability of network communication.

As shown in fig. 7, an embodiment of the present invention further provides a method for receiving a hybrid automatic repeat request, which is applied to a network device, and includes:

step 71, receiving hybrid automatic repeat request (HARQ-ACK) transmitted by at least two semi-persistent scheduling physical downlink shared channel (SPS) PDSCH fed back by a terminal through first Physical Uplink Control Channel (PUCCH) resources;

Further, before the step 71, the method further includes:

Optionally, the preset rule includes at least one of the following ways:

Optionally, before the step 71, the method further includes:

Optionally, the multiplexing rule includes:

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, the multiplexing rule includes:

Optionally, when the number of SPS PDSCH transmissions to be fed back in the same timeslot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs all use a second PUCCH format carrying less than or equal to 2 bits, the multiplexing rule includes:

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, the multiplexing rule includes:

Optionally, the multiplexing rule includes:

In the above embodiments, all descriptions about the network device are applied to the embodiment of the receiving method applied to the hybrid automatic repeat request of the network device, and the same technical effects as those of the embodiment can be achieved.

As shown in fig. 8, an embodiment of the present invention provides a terminal 80, including:

a determining module 81, configured to determine, when a terminal needs to feed back at least two SPS PDSCH transmissions in a same timeslot, a first physical uplink control channel PUCCH resource for feeding back HARQ-ACK for at least two SPS PDSCH transmissions;

a multiplexing module 82 to multiplex HARQ-ACK of the at least two SPS PDSCH transmissions on a first PUCCH resource;

a feedback module 83, configured to feed back HARQ-ACKs of the at least two SPS PDSCH transmissions to a network device through the first PUCCH resource.

Further, the determining module 81 includes:

a determining unit, configured to determine, according to a preset rule, a first PUCCH resource for feeding back HARQ-ACKs transmitted by the at least two SPS PDSCHs.

Optionally, the preset rule includes at least one of the following ways:

Specifically, the manner of determining the first PUCCH resource according to the PUCCH format is:

Specifically, an implementation manner of determining the PUCCH resource using the second PUCCH format as the first PUCCH resource is:

Specifically, an implementation manner of determining the PUCCH resource using the third PUCCH format as the first PUCCH resource is:

Optionally, the multiplexing module 82 includes:

the cascading unit is used for cascading HARQ-ACK transmitted by at least two SPS PDSCH according to the ascending sequence of carrier numbers and/or the sequence of receiving time to generate a feedback codebook;

a first loading unit, configured to load the feedback codebook on the first PUCCH resource.

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, the multiplexing module 82 is configured to:

Further, when the number of SPS PDSCH transmissions to be fed back in the same timeslot is greater than two and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs all use the second PUCCH format carrying less than or equal to 2 bits, the multiplexing module 82 includes:

a merging unit, configured to merge HARQ-ACK feedback bits transmitted by the at least two SPS PDSCHs to generate feedback information with less than or equal to 2 bits;

and a second carrying unit, configured to carry the feedback information on the first PUCCH resource.

Further, the merging unit is configured to:

Optionally, when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, the multiplexing module 82 is configured to:

a generating unit, configured to supplement target bits to the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs when the bit number of the HARQ-ACK feedback bit sequences transmitted by the two SPS PDSCHs is smaller than the bit number of the minimum uplink control information UCI correspondingly transmitted by the third PUCCH format;

a third carrying unit, configured to carry the complemented HARQ-ACK feedback bit sequence on the first PUCCH resource;

Optionally, the multiplexing module 82 is configured to:

It should be noted that the terminal embodiment is a terminal corresponding to the above method embodiments one to one, and all implementation manners in the above method embodiments are applicable to the terminal embodiment, and the same technical effect can be achieved.

As shown in fig. 9, the embodiment of the present invention further provides a terminal 90, which includes a processor 91, a transceiver 92, a memory 93, and a computer program stored on the memory 93 and operable on the processor 91; the transceiver 92 is connected to the processor 91 and the memory 93 through a bus interface, wherein the processor 91 is configured to read a program in the memory and execute the following processes:

feeding back, with the transceiver 92, HARQ-ACKs for the at least two SPS PDSCH transmissions to a network device over the first PUCCH resource.

It should be noted that in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 91 and various circuits of memory represented by memory 93 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 92 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 94 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 91 is responsible for managing the bus architecture and general processing, and the memory 93 may store data used by the processor 91 in performing operations.

Further, the preset rule comprises at least one of the following modes:

and loading the feedback codebook on the first PUCCH resource.

and loading the feedback information on the first PUCCH resource.

Further, the processor, when executing the computer program, implements the steps of:

Optionally, the processor, when executing the computer program, implements the following steps: when the first PUCCH resource uses PUCCH format one, a HARQ-ACK feedback bit sequence is obtained according to the transmission of the at least two SPS PDSCHs, the HARQ-ACK feedback bit sequence is modulated to obtain a modulation symbol, and the modulation symbol is placed on the first PUCCH resource using PUCCH format one for transmission.

According to the terminal provided by the embodiment of the invention, when the terminal needs to feed back at least two SPS PDSCH transmissions in the same time slot, HARQ-ACK transmitted by at least two SPS PDSCH transmissions is multiplexed on the same PUCCH resource and fed back to the network equipment, so that the HARQ-ACK transmitted by a plurality of SPS PDSCH transmissions can be transmitted in the same time slot, the transmission performance is improved, and the reliability of network communication is ensured.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the feedback method applied to the hybrid automatic repeat request of the terminal.

As shown in fig. 10, an embodiment of the present invention provides a network device 100, including:

a receiving module 101, configured to receive hybrid automatic repeat request acknowledgement information HARQ-ACK transmitted by at least two semi-persistent scheduling physical downlink shared channels SPS PDSCH fed back by a terminal through first physical uplink control channel PUCCH resources;

Optionally, the network device 100 further includes:

and the resource determining module is used for determining a first PUCCH resource used when the terminal feeds back HARQ-ACK transmitted by at least two SPS PDSCH according to a preset rule.

Further, the preset rule comprises at least one of the following modes:

Specifically, according to the PUCCH format, the implementation manner of determining the first PUCCH resource is:

Optionally, the network device 100 further includes:

a rule obtaining module, configured to obtain a multiplexing rule of HARQ-ACKs transmitted by the at least two SPS PDSCHs.

Further, the multiplexing rule includes:

Specifically, the implementation manner of performing frequency domain combining on the HARQ-ACKs transmitted by the at least two SPS PDSCHs and generating the feedback information less than or equal to 2 bits is as follows:

Further, the multiplexing rule includes:

It should be noted that the network device embodiment is a network device corresponding to the above method embodiment one to one, and all implementation manners in the above method embodiment are applicable to the network device embodiment, and the same technical effect can be achieved.

As shown in fig. 11, an embodiment of the present invention further provides a network device 110, which includes a processor 111, a transceiver 112, a memory 113, and a computer program stored on the memory 113 and executable on the processor 111; the transceiver 112 is connected to the processor 111 and the memory 113 through a bus interface, wherein the processor 111 is configured to read a program in the memory and execute the following processes:

receiving hybrid automatic repeat request (HARQ-ACK) transmitted by at least two semi-persistent scheduling (SPS) and PDSCH (physical downlink shared channel) by a terminal through a first PUCCH (physical uplink control channel) resource through a transceiver 112;

It should be noted that in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 111 and various circuits of memory represented by memory 113 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 112 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 111 is responsible for managing the bus architecture and general processing for different terminals, and the memory 113 may store data used by the processor 111 in performing operations.

Further, the preset rule comprises at least one of the following modes:

Specifically, the processor, when executing the computer program, further implements the following steps:

Further, the multiplexing rule includes:

The network device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for receiving hybrid automatic repeat request applied to a network device.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A feedback method of hybrid automatic repeat request is applied to a terminal, and is characterized by comprising the following steps:

feeding back HARQ-ACK of the at least two SPS PDSCH transmissions to a network device through the first PUCCH resource;

wherein, the determining the first physical uplink control channel PUCCH resource for feeding back hybrid automatic repeat request information HARQ-ACK transmitted by at least two SPS PDSCH comprises:

determining a first PUCCH resource for feeding back HARQ-ACK transmitted by the at least two SPS PDSCH according to a preset rule;

when the network device configures two PUCCH resources for at least one SPS PDSCH of the at least two SPS PDSCHs, one PUCCH resource using a second PUCCH format carrying less than or equal to 2 bits, and another PUCCH resource using a third PUCCH format carrying more than 2 bits, the preset rule includes:

2. The feedback method of hybrid automatic repeat request according to claim 1, wherein the preset rule comprises at least one of the following ways:

and the latest SPS PDSCH is the SPS PDSCH with the latest sequence according to the sequence of carrier numbers and/or the sequence of receiving time.

3. The feedback method of hybrid automatic repeat request according to claim 2, wherein said determining said first PUCCH resource according to the PUCCH format comprises:

4. The feedback method according to claim 1, wherein determining the PUCCH resource using the second PUCCH format as the first PUCCH resource comprises:

5. The feedback method according to claim 1, wherein determining the PUCCH resource using the third PUCCH format as the first PUCCH resource comprises:

6. The feedback method of hybrid automatic repeat request according to claim 1, wherein said multiplexing HARQ-ACKs for said at least two SPS PDSCH transmissions on a first PUCCH resource comprises:

and loading the feedback codebook on the first PUCCH resource.

7. The feedback method of HARQ-arq according to claim 1, wherein when there are two SPS PDSCH transmissions to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, said multiplexing the HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource comprises:

8. The feedback method of HARQ-ACK of HARQ according to claim 1, wherein when there are more than two SPS PDSCH transmissions to be fed back in the same timeslot and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs use the second PUCCH format carrying less than or equal to 2 bits, the multiplexing HARQ-ACK of the at least two SPS PDSCH transmissions on the first PUCCH resource comprises:

and loading the feedback information on the first PUCCH resource.

9. The feedback method of hybrid automatic repeat request according to claim 8, wherein said combining HARQ-ACK feedback bits of said at least two SPS PDSCH transmissions to generate feedback information less than or equal to 2 bits comprises:

10. The feedback method of HARQ-ACK of HARQ-arq according to claim 1, wherein when there are two SPS PDSCH transmissions to be fed back in the same timeslot and the PUCCH resource configured by the network device for each of the two SPS PDSCH transmissions uses a third PUCCH format carrying more than 2 bits, said multiplexing the HARQ-ACKs of the at least two SPS PDSCH transmissions on the first PUCCH resource comprises:

11. The feedback method of hybrid automatic repeat request according to claim 1, wherein said multiplexing HARQ-ACKs for said at least two SPS PDSCH transmissions on a first PUCCH resource comprises:

12. The feedback method of hybrid automatic repeat request according to claim 11, wherein the modulating the HARQ-ACK feedback bit sequence comprises: a quadrature amplitude modulation QAM scheme or a phase shift keying PSK modulation scheme.

13. A receiving method of hybrid automatic repeat request is applied to network equipment, and is characterized by comprising the following steps:

wherein HARQ-ACK of at least two SPS PDSCH transmissions are multiplexed in a first PUCCH resource;

before the hybrid automatic repeat request acknowledgement information HARQ-ACK transmitted by at least two semi-persistent scheduling physical downlink shared channel SPS PDSCHs fed back by the receiving terminal through first physical uplink control channel PUCCH resources, the method further includes:

determining a first PUCCH resource used when the terminal feeds back HARQ-ACK transmitted by at least two SPS PDSCH according to a preset rule;

14. The method according to claim 13, wherein the predetermined rule comprises at least one of the following ways:

15. The harq receiving method according to claim 14, wherein the determining the first PUCCH resource according to the PUCCH format includes:

16. The method according to claim 13, wherein determining a PUCCH resource using the second PUCCH format as the first PUCCH resource comprises:

17. The method according to claim 13, wherein determining a PUCCH resource using the third PUCCH format as the first PUCCH resource comprises:

18. The receiving method of hybrid automatic repeat request according to claim 13, wherein before the hybrid automatic repeat request acknowledgement information HARQ-ACK transmitted by at least two semi-persistently scheduled physical downlink shared channels SPS PDSCH fed back by the receiving terminal through the first physical uplink control channel PUCCH resource, further comprising:

19. The harq receiving method according to claim 18, wherein the multiplexing rule includes:

20. The harq receiving method according to claim 18, wherein when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources corresponding to the two SPS PDSCH transmissions both use the first PUCCH format, the multiplexing rule includes:

21. The method for receiving harq according to claim 18, wherein when there are more than two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs use a second PUCCH format carrying less than or equal to 2 bits, the multiplexing rule includes:

22. The method of receiving HARQ-ACK feedback according to claim 21, wherein combining the HARQ-ACK feedback bits for the at least two SPS PDSCH transmissions to generate feedback information less than or equal to 2 bits comprises:

23. The method for receiving harq according to claim 18, wherein when there are two SPS PDSCH transmissions that need to be fed back in the same timeslot and the PUCCH resources configured by the network device for each of the two SPS PDSCH transmissions use a third PUCCH format carrying more than 2 bits, the multiplexing rule includes:

24. The harq receiving method according to claim 18, wherein the multiplexing rule includes:

25. The method of receiving HARQ feedback according to claim 24, wherein the means for modulating the HARQ-ACK feedback bit sequence comprises: a quadrature amplitude modulation QAM scheme or a phase shift keying PSK modulation scheme.

26. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the computer program:

wherein the processor implements the following steps when executing the computer program:

27. The terminal according to claim 26, wherein the preset rule comprises at least one of the following ways:

28. The terminal according to claim 27, wherein the processor, when executing the computer program, performs the steps of:

29. The terminal according to claim 26, wherein the processor, when executing the computer program, performs the steps of:

30. The terminal according to claim 26, wherein the processor, when executing the computer program, performs the steps of:

31. The terminal according to claim 26, wherein the processor, when executing the computer program, performs the steps of:

and loading the feedback codebook on the first PUCCH resource.

32. The terminal of claim 26, wherein when there are two SPS PDSCH transmissions to be fed back in the same timeslot and both PUCCH resources corresponding to the two SPS PDSCH transmissions use the first PUCCH format, the processor when executing the computer program implements the following steps:

33. The terminal of claim 26, wherein when more than two SPS PDSCH transmissions requiring feedback in a same timeslot and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs use a second PUCCH format carrying less than or equal to 2 bits, the processor when executing the computer program implements the steps of:

and loading the feedback information on the first PUCCH resource.

34. The terminal according to claim 33, wherein the processor, when executing the computer program, performs the steps of:

35. The terminal of claim 26, wherein when there are two SPS PDSCH transmissions to be fed back in the same timeslot and the PUCCH resources configured by the network device for each of the two SPS PDSCH transmissions use a third PUCCH format carrying more than 2 bits, the processor when executing the computer program implements the following steps:

36. The terminal according to claim 26, wherein the processor, when executing the computer program, performs the steps of:

37. The terminal of claim 36, wherein the means for modulating the HARQ-ACK feedback bit sequence comprises: a quadrature amplitude modulation QAM scheme or a phase shift keying PSK modulation scheme.

38. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the computer program:

the processor, when executing the computer program, further implements the steps of:

39. The network device of claim 38, wherein the preset rules comprise at least one of the following:

40. The network device of claim 39, wherein the processor, when executing the computer program, performs the steps of:

41. The network device of claim 38, wherein the processor, when executing the computer program, performs the steps of:

42. The network device of claim 38, wherein the processor, when executing the computer program, performs the steps of:

43. The network device of claim 38, wherein the processor, when executing the computer program, further performs the steps of:

44. The network device of claim 43, wherein the multiplexing rule comprises:

45. The network device of claim 43, wherein when there are two SPS PDSCH transmissions requiring feedback in the same time slot, and both PUCCH resources corresponding to the two SPS PDSCH transmissions use the first PUCCH format, the multiplexing rule comprises:

46. The network device of claim 43, wherein when there are more than two SPS PDSCH transmissions to be fed back in the same time slot, and the PUCCH resources configured by the network device for each of the at least two SPS PDSCHs use a second PUCCH format carrying less than or equal to 2 bits, the multiplexing rule comprises:

47. The network device of claim 46, wherein the processor, when executing the computer program, performs the steps of:

48. The network device of claim 43, wherein when there are two SPS PDSCH transmissions requiring feedback in the same time slot, and the PUCCH resources configured by the network device for each of the two SPS PDSCH transmissions use a third PUCCH format carrying more than 2 bits, the multiplexing rule comprises:

49. The network device of claim 43, wherein the multiplexing rule comprises:

50. The network device of claim 49, wherein the means for modulating the HARQ-ACK feedback bit sequence comprises: a quadrature amplitude modulation QAM scheme or a phase shift keying PSK modulation scheme.

51. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the feedback method for hybrid automatic repeat request according to any one of claims 1 to 12 or the receiving method for hybrid automatic repeat request according to any one of claims 13 to 25.

52. A terminal, comprising:

a feedback module, configured to feed back HARQ-ACKs of the at least two SPS PDSCH transmissions to a network device through the first PUCCH resource;

wherein the determining module comprises:

a determining unit, configured to determine, according to a preset rule, a first PUCCH resource for feeding back HARQ-ACKs transmitted by the at least two SPS PDSCHs;

53. A network device, comprising:

the network device further includes:

the resource determining module is used for determining a first PUCCH resource used when the terminal feeds back HARQ-ACK transmitted by at least two SPS PDSCH according to a preset rule;