CN112584512A

CN112584512A - HARQ-ACK transmission method of SPS PDSCH

Info

Publication number: CN112584512A
Application number: CN201910945470.8A
Authority: CN
Inventors: 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30
Anticipated expiration: 2039-09-30
Also published as: CN112584512B

Abstract

The embodiment of the invention provides a HARQ-ACK transmission method of an SPS (semi-persistent scheduling) PDSCH, which comprises the following steps: if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, using a first PUCCH resource to transmit the HARQ-ACK; otherwise, transmitting HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH; the terminal corresponds to at least one first PUCCH resource used for transmitting HARQ-ACK of a plurality of SPS PDSCHs, each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration. The method provided by the embodiment of the invention ensures the normal feedback of the HARQ-ACK collision of a plurality of SPS PDSCHs.

Description

HARQ-ACK transmission method of SPS PDSCH

Technical Field

The invention relates to the technical field of wireless communication, in particular to a HARQ-ACK transmission method of an SPS PDSCH.

Background

As the demand for mobile communication services has changed, 5G NR (5Generation New RAT) wireless communication systems have come into use. The 5G NR system supports Semi-Persistent Scheduling (SPS) Physical Downlink Shared CHannel (PDSCH) transmission.

When the terminal receives the SPS PDSCH, the terminal transmits the HARQ-ACK of the SPS PDSCH through a Physical Uplink Control CHannel (PUCCH)/a Physical Uplink Shared CHannel (PUSCH) at a corresponding Uplink transmission position according to a feedback timing of Hybrid automatic transmission request feedback information (HARQ-ACK) to notify the base station whether the SPS PDSCH transmission is correctly received.

In the 5G NR system, one terminal may be configured with a plurality of SPS configurations, and one terminal may be configured with a shorter (e.g., 1ms, 5ms, etc.) SPS transmission period. When multiple SPS configurations are configured, there may be a case where multiple HARQ-ACKs corresponding to PDSCHs of different SPS configurations need to be transmitted at the same time; when one SPS configuration uses short periodic transmission, there may be a case where a plurality of HARQ-ACKs corresponding to a PDSCH of the same SPS configuration need to be transmitted at the same time. For the above situation, there is no clear solution for how to perform the HARQ-ACK multiplexing transmission of the SPS PDSCH.

Disclosure of Invention

The embodiment of the invention provides a method for transmitting HARQ-ACK of SPS PDSCH, which is used for solving the problem that no clear scheme exists for transmitting the HARQ-ACK of a plurality of SPS PDSCHs at the same time in the existing 5G NR system.

In a first aspect, an embodiment of the present invention provides a method for transmitting HARQ-ACK of SPS PDSCH, including:

if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, transmitting the HARQ-ACK by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH;

the terminal corresponds to at least one first PUCCH resource used for transmitting HARQ-ACK of a plurality of SPS PDSCHs, each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

Preferably, the second preset threshold is 1;

correspondingly, the first PUCCH resource is used for carrying HARQ-ACK of a plurality of SPS PDSCHs, and the second PUCCH resource is used for carrying HARQ-ACK of 1 SPS PDSCH.

Preferably, the second preset threshold is greater than 1;

correspondingly, the first PUCCH resource is used for carrying the HARQ-ACK of the SPS PDSCH of which the total information amount exceeds the second preset threshold, and the second PUCCH resource is used for carrying the HARQ-ACK of the SPS PDSCH of which the total information amount does not exceed the second preset threshold.

Preferably, if the total amount of the HARQ-ACK information of the SPS PDSCH required to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is transmitted by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

if the HARQ-ACK of a plurality of SPS PDSCHs needs to be transmitted at the current moment, using a first PUCCH resource to transmit the HARQ-ACK;

and if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current moment, using a second PUCCH resource corresponding to the SPS PDSCH to transmit the HARQ-ACK.

if HARQ-ACK of a plurality of SPS PDSCHs need to be transmitted at the current moment, and the total amount of the HARQ-ACK information of the SPS PDSCHs is larger than the second preset threshold, a first PUCCH resource is used for transmitting the HARQ-ACK;

if HARQ-ACK of a plurality of SPS PDSCHs needs to be transmitted at the current moment, and the total amount of the HARQ-ACK information of the SPS PDSCHs is smaller than or equal to the second preset threshold, using one of second PUCCH resources corresponding to the SPS PDSCHs to transmit the HARQ-ACK;

Preferably, the transmitting the HARQ-ACK using the first PUCCH resource further includes:

and if the bit number of the HARQ-ACK does not exceed the first preset threshold, supplementing Z bits to the HARQ-ACK at the tail, wherein Z is the difference between the first preset threshold +1 and the bit number of the HARQ-ACK.

Preferably, the transmitting the HARQ-ACK by using the first PUCCH resource specifically includes:

and when the terminal corresponds to a plurality of first PUCCH resources, selecting one first PUCCH resource with the bearing capacity not less than the bit number of the HARQ-ACK and the minimum bearing capacity from the plurality of first PUCCH resources, and transmitting the HARQ-ACK.

Preferably, the transmitting the HARQ-ACK by using one of the second PUCCH resources corresponding to the SPS PDSCHs specifically includes:

if the second PUCCH resource is a resource of PUCCH format 1, modulating multi-bit HARQ-ACK of the SPS PDSCH to obtain a modulation symbol, and transmitting the modulation symbol by using one of the second PUCCH resources corresponding to the SPS PDSCH;

if the second PUCCH resource is a resource of PUCCH format 0, determining the cyclic shift corresponding to the multi-bit HARQ-ACK of the SPS PDSCH according to the corresponding relation between the multi-bit HARQ-ACK information and each cyclic shift in the candidate cyclic shift set, and transmitting the sequence corresponding to the cyclic shift by using one of the second PUCCH resources corresponding to the SPS PDSCH.

transmitting the HARQ-ACK by using the second PUCCH resource corresponding to the last SPS PDSCH in the plurality of SPS PDSCHs;

the SPS PDSCH are sequenced according to the ascending sequence of the carrier serial number firstly and the time secondly.

Preferably, the first PUCCH resource is a resource of any one of PUCCH format 2, PUCCH format 3, and PUCCH format 4.

Preferably, if the current time needs to transmit HARQ-ACKs of a plurality of SPS PDSCHs, the method further includes:

sequencing the SPS PDSCHs according to the ascending sequence of the carrier serial numbers and the sequence of the transmission time;

and cascading the HARQ-ACK of the SPS PDSCH according to the sequence of the SPS PDSCH to obtain the HARQ-ACK.

In a second aspect, an embodiment of the present invention provides a method for transmitting HARQ-ACK of SPS PDSCH, including:

if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, using a first PUCCH resource to receive the HARQ-ACK; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH;

the base station configures at least one first PUCCH resource for transmitting HARQ-ACK of a plurality of SPS PDSCHs to the terminal, wherein each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

Preferably, the second preset threshold is 1;

Preferably, the second preset threshold is greater than 1;

Preferably, if the total amount of the HARQ-ACK information of the SPS PDSCH required to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is received by using a first PUCCH resource; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

if the HARQ-ACK of a plurality of SPS PDSCHs needs to be received at the current moment, using a first PUCCH resource to receive the HARQ-ACK;

and if the HARQ-ACK of one SPS PDSCH needs to be received at the current moment, using a second PUCCH resource corresponding to the SPS PDSCH to receive the HARQ-ACK.

if HARQ-ACK of a plurality of SPS PDSCHs needs to be received at the current moment, and the total amount of the HARQ-ACK information of the SPS PDSCHs is larger than the second preset threshold, using a first PUCCH resource to receive the HARQ-ACK;

if HARQ-ACK of a plurality of SPS PDSCHs needs to be received at the current time, and the total amount of the HARQ-ACK information of the SPS PDSCHs is smaller than or equal to the second preset threshold, using one of second PUCCH resources corresponding to the SPS PDSCHs to receive the HARQ-ACK;

Preferably, the receiving the HARQ-ACK using the first PUCCH resource further includes:

and if the bit number of the HARQ-ACK does not exceed the first preset threshold, determining that the information sequence received by using the first PUCCH resource is an information sequence obtained by complementing Z bits at the tail of the HARQ-ACK, wherein Z is the difference between the first preset threshold +1 and the bit number of the HARQ-ACK.

Preferably, the receiving the HARQ-ACK by using the first PUCCH resource specifically includes:

and when the terminal is determined to correspond to a plurality of first PUCCH resources, selecting one first PUCCH resource with the bearing capacity not less than the bit number of the HARQ-ACK and the minimum bearing capacity from the plurality of first PUCCH resources, and receiving the HARQ-ACK.

Preferably, the receiving the HARQ-ACK by using one of the second PUCCH resources corresponding to the SPS PDSCHs specifically includes:

if the second PUCCH resource is a resource of PUCCH format 1, receiving a modulation symbol by using one of the second PUCCH resources corresponding to the SPS PDSCH; demodulating the modulation symbol to obtain HARQ-ACK of the SPS PDSCH;

if the second PUCCH resource is a resource of PUCCH format 0, receiving a sequence corresponding to cyclic shift corresponding to multi-bit HARQ-ACK of the SPS PDSCH by using one of the second PUCCH resources corresponding to the SPS PDSCH; and determining the HARQ-ACK of the plurality of SPS PDSCHs based on the corresponding cyclic shift of the sequence and the corresponding relation between the multi-bit HARQ-ACK information of the plurality of SPS PDSCHs and the cyclic shift in the candidate cyclic shift set.

receiving the HARQ-ACK by using the second PUCCH resource corresponding to the last SPS PDSCH in the plurality of SPS PDSCHs;

Preferably, if the current time needs to receive HARQ-ACKs of multiple SPS PDSCHs, the method further includes:

and determining HARQ-ACK of the plurality of SPS PDSCHs from the received HARQ-ACK according to the sequencing sequence of the plurality of SPS PDSCHs.

In a third aspect, an embodiment of the present invention provides a terminal, including:

the first transmission unit is used for transmitting the HARQ-ACK by using a first PUCCH resource if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is greater than a second preset threshold;

a second transmission unit, configured to transmit the HARQ-ACK using a second PUCCH resource corresponding to the SPS PDSCH if not;

In a fourth aspect, an embodiment of the present invention provides a base station, including:

the first receiving unit is used for receiving the HARQ-ACK by using a first PUCCH resource if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is greater than a second preset threshold;

a second receiving unit, configured to receive the HARQ-ACK using a second PUCCH resource corresponding to the SPS PDSCH if not;

In a fifth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a bus, where the processor and the communication interface, the memory complete communication with each other through the bus, and the processor may call logic instructions in the memory to perform the steps of the method as provided in the first aspect or the second aspect.

In a sixth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method as provided in the first or second aspect.

According to the HARQ-ACK transmission method of the SPS PDSCH, provided by the embodiment of the invention, on the basis that each SPS configuration corresponds to one second PUCCH resource, an additional high-capacity PUCCH resource shared by all SPS PDSCHs, namely a first PUCCH resource, is configured, when the HARQ-ACK of a plurality of SPS PDSCHs collide, the HARQ-ACK of the plurality of SPS PDSCHs is transmitted by multiplexing the first PUCCH resource, so that the multiplexing transmission of the HARQ-ACK of the plurality of SPS PDSCHs is supported, the normal feedback of the HARQ-ACK of the SPS PDSCH is ensured when the SPS PDSCH reduces the period or configures a plurality of SPS configurations under the condition of controlling the expenditure of the PUCCH resources, and the system performance is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a flowchart illustrating a HARQ-ACK transmission method for SPS PDSCH according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a HARQ-ACK transmission method for SPS PDSCH according to another embodiment of the present invention;

FIG. 3 is a diagram illustrating HARQ-ACK transmission of SPS PDSCH according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention will be combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The 5G NR system supports SPS PDSCH transmission. When a terminal is configured with SPS PDSCH (PDSCH without corresponding PDCCH) transmission, it is necessary to configure a transmission interval and CS (configured scheduling) C-RNTI for the SPS PDSCH, where the CS C-RNTI is used to identify a PDCCH corresponding to SPS traffic, for example, a PDCCH indicating downlink SPS resource activation, a PDCCH for updating SPS PDSCH transmission configuration, a PDCCH for scheduling SPS PDSCH retransmission, and the like. And when the PDCCH for indicating the activation of the downlink SPS resources is received, triggering the transmission of the corresponding SPS PDSCH, namely determining the transmission position of the subsequent SPS PDSCH according to a pre-configured transmission interval, the transmission position of the PDCCH for indicating the activation of the downlink SPS resources and the scheduling time sequence between the PDCCH and the PDSCH. The transmission configuration of the SPS PDSCH, for example, information such as MCS (Modulation and Coding Scheme), frequency domain resources, etc., is notified in the PDCCH indicating activation of the downlink SPS resources, the base station transmits the SPS PDSCH on the corresponding time domain position and frequency domain resources, and the terminal receives the SPS PDSCH on the corresponding time domain position and frequency domain resources.

When the terminal receives the SPS PDSCH, the terminal sends HARQ-ACK feedback information of the SPS PDSCH through a PUCCH/PUSCH at a corresponding uplink transmission position according to the definition of the HARQ-ACK feedback time sequence so as to inform a base station whether the SPS PDSCH transmission is correctly received.

Considering that the uplink transmission carrying HARQ-ACK may have different baseband parameters (numerology) from PDSCH, e.g., different subcarrier spacing, it is necessary to define a reference slot to find one slot boundary corresponding to numerology of uplink transmission carrying HARQ-ACK as a reference point for determining the HARQ-ACK transmission slot. Correspondingly, the HARQ-ACK feedback timing can be defined as the interval from the reference time slot corresponding to the PDSCH to the time slot of the PUCCH/PUSCH carrying the HARQ-ACK thereof, and is determined by one HARQ-ACK timing value. The HARQ-ACK timing value can be indicated by a HARQ-ACK timing indication domain in a PDCCH activated by the downlink SPS resources or is configured in advance through high-layer signaling. In summary, the SPS PDSCH is transmitted at a specific location according to a specific configuration, and HARQ-ACK feedback is performed at the specific location. In the prior art, a PUCCH resource for transmitting HARQ-ACK of SPS PDSCH is a PUCCH format (format)0 or 1 resource pre-configured by higher layer signaling.

In the NR system, a plurality of SPS configurations may be configured for one terminal, each SPS configuration performs parameter configuration independently in the above manner, and the position where HARQ-ACK transmission is located may be determined according to the corresponding feedback timing. When multiple SPS configurations are configured for one terminal, there may be multiple HARQ-ACKs of PDSCH corresponding to different SPS configurations that need to be transmitted at the same time. In addition, in the NR system, a terminal may be configured with a smaller SPS transmission period, for example, the densest may be that there is one SPS PDSCH transmission in each slot when the subcarrier spacing is 15 kHz. When a terminal is configured with an SPS configuration using short periodic transmissions, there may be a plurality of HARQ-ACKs corresponding to the PDSCH of the same SPS configuration that need to be transmitted at the same time. However, in the NR system, there is no clear scheme for how to perform HARQ-ACK multiplexing transmission for SPS PDSCH.

Therefore, the embodiment of the invention provides a HARQ-ACK transmission method of an SPS PDSCH. Fig. 1 is a flowchart illustrating a method for transmitting HARQ-ACK of SPS PDSCH according to an embodiment of the present invention, where as shown in fig. 1, the main execution entity of the method is a terminal in an NR system, and the method includes:

and step 110, if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold, using the first PUCCH resource to transmit the HARQ-ACK.

And step 120, if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is less than or equal to a second preset threshold, using a second PUCCH resource corresponding to the SPS PDSCH to transmit the HARQ-ACK.

The terminal corresponds to at least one first PUCCH resource used for transmitting HARQ-ACK of a plurality of SPS PDSCHs, each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value. The SPS PDSCH here may be SPS PDSCH in multiple transmission opportunities of one SPS configuration, or SPS PDSCH corresponding to different SPS configurations.

Specifically, the terminal may obtain two PUCCH resources for HARQ-ACK feedback for transmitting the SPS PDSCH according to the configuration signaling, where the two PUCCH resources are respectively a first PUCCH resource and a second PUCCH resource, where the terminal is configured with one or more first PUCCH resources correspondingly, each first PUCCH resource is shared by all SPS configurations and SPS PDSCH transmissions and is used for transmitting multiple HARQ-ACKs of the SPS PDSCH, and the SPS configurations are in one-to-one correspondence with the second PUCCH resource (each SPS PDSCH transmission in a transmission position determined by one SPS configuration according to a period corresponds to the second PUCCH resource corresponding to the SPS configuration). The bearable capacity of the first PUCCH resource exceeds a first preset threshold bit, the first PUCCH resource at least bears second preset threshold bit information, the bearable capacity of the second PUCCH resource is less than or equal to the first preset threshold bit, the second PUCCH resource bears second preset threshold bit information at most, and the capacity of the first PUCCH resource is greater than that of the second PUCCH resource. On the terminal side, the configuration of the first PUCCH resource may be implemented according to a configuration signaling (for example, through RRC signaling, physical layer signaling, and the like) issued by the base station, or may be predefined in a protocol, which is not specifically limited in this embodiment of the present invention.

The first preset threshold and the second preset threshold are both preset positive integers, and the second preset threshold is smaller than or equal to the first preset threshold, for example, the first preset threshold and the second preset threshold are both 1, or the first preset threshold is 2, the second preset threshold is 1, or the first preset threshold is 4, and the second preset threshold is 2. Similarly, the first preset threshold and the second preset threshold may be determined according to a configuration signaling issued by the base station, or may be predefined in a protocol, which is not specifically limited in this embodiment of the present invention.

When the terminal executes the HARQ-ACK transmission of the SPS PDSCH, the total quantity of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current time is compared with the size of a second preset threshold value, so that the HARQ-ACK transmission executed in the step 110 or the step 120 is determined to be triggered. Here, the current time may be a current subframe, a time slot, or a sub-time slot, or other predefined time units, such as T symbols as a time unit; the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time may be represented by the number of corresponding SPS PDSCHs, where the number of HARQ-ACK bits of one SPS PDSCH is fixed, for example, predefined as 1 bit, and may also be represented by the number of HARQ-ACK bits.

And if the number of the SPS PDSCHs needing to be transmitted with the HARQ-ACK at the current moment is larger than a second preset threshold, or the number of the HARQ-ACK bits of the SPS PDSCH needing to be transmitted is larger than the second preset threshold, using the first PUCCH resource to transmit the HARQ-ACK. Here, the first PUCCH resource enables multiplexed transmission of HARQ-ACKs for a plurality of SPS PDSCHs whose total amount of information is greater than a second preset threshold.

And if the number of the SPS PDSCHs needing to transmit the HARQ-ACK at the current moment is smaller than or equal to a second preset threshold, or the number of the HARQ-ACK bits of the SPS PDSCH needing to be transmitted is smaller than or equal to the second preset threshold, transmitting the HARQ-ACK based on a second PUCCH resource corresponding to the SPS PDSCH. It should be noted that, if the SPS PDSCH which needs to transmit the HARQ-ACK at present is one or needs to transmit the HARQ-ACK corresponding to the SPS PDSCH with 1 bit, the second PUCCH resource corresponding to the SPS PDSCH is directly used for the transmission of the HARQ-ACK; if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the HARQ-ACK needing to be transmitted currently corresponds to the same SPS configuration, directly using a second PUCCH resource corresponding to the SPS configuration for the transmission of the plurality of bits HARQ-ACK; if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the SPS PDSCH needing to transmit the HARQ-ACK currently corresponds to different SPS configurations, selecting one second PUCCH resource corresponding to the different SPS configurations for transmitting the multi-bit HARQ-ACK; and if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the SPS PDSCH needing to transmit the HARQ-ACK currently has SPS PDSCHs corresponding to different SPS configurations and also has SPS PDSCH corresponding to the same SPS configuration, selecting one from second PUCCH resources corresponding to different SPS configurations for transmitting the multi-bit HARQ-ACK.

According to the method provided by the embodiment of the invention, on the basis that each SPS configuration corresponds to one second PUCCH resource, an additional high-capacity PUCCH resource, namely a first PUCCH resource, is configured for multiplexing and transmitting the HARQ-ACK of a plurality of SPS PDSCHs by using the first PUCCH resource when the HARQ-ACK of the SPS PDSCHs collide, so that the multiplexing transmission of the HARQ-ACK of the SPS PDSCHs is supported, the normal feedback of the HARQ-ACK of the SPS PDSCH is ensured when the SPS PDSCH reduces the period or configures a plurality of SPS configurations, and the system performance is improved; in addition, the large-capacity PUCCH resources are shared by all SPS configuration and SPS PDSCH transmission, and the number of the large-capacity PUCCH resources is not increased along with the increase of the SPS configuration or the increase of the number of the SPS PDSCHs multiplexed together for HARQ-ACK feedback, so that the PUCCH resource overhead can be effectively controlled.

Based on the above embodiment, in the method, the second preset threshold is 1; correspondingly, the first PUCCH resource is used for carrying HARQ-ACK of a plurality of SPS PDSCHs, and the second PUCCH resource is used for carrying HARQ-ACK of 1 SPS PDSCH.

Further, when the second preset threshold is 1, comparing the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time with the size of 1 may be specifically divided into two cases:

if the number of SPS PDSCHs needing to transmit the HARQ-ACK at the current time is larger than 1, or the bit number of the HARQ-ACK of the SPS PDSCH needing to be transmitted is larger than 1, namely the HARQ-ACK of a plurality of SPS PDSCHs need to be transmitted at the current time, the HARQ-ACK is transmitted by using the first PUCCH resource;

and if the number of the SPS PDSCHs needing to be transmitted with the HARQ-ACK at the current time is 1 or the bit number of the HARQ-ACK of the SPS PDSCH needing to be transmitted is 1, namely the HARQ-ACK of only one SPS PDSCH needs to be transmitted at the current time, transmitting one HARQ-ACK based on the second PUCCH resource corresponding to the SPS PDSCH.

Based on any of the above embodiments, in the method, the second preset threshold is greater than 1; correspondingly, the first PUCCH resource is used for carrying the HARQ-ACK of the SPS PDSCH of which the total information amount exceeds a second preset threshold value, and the second PUCCH resource is used for carrying the HARQ-ACK of the SPS PDSCH of which the total information amount does not exceed the second preset threshold value.

For example, when the second preset threshold is 2, the first PUCCH resource is used to carry HARQ-ACK of more than two SPS PDSCHs or carry HARQ-ACK of corresponding SPS PDSCH with more than 2 bits, and the second PUCCH resource is used to carry HARQ-ACK of one or two SPS PDSCHs or carry HARQ-ACK of corresponding SPS PDSCH with 1 bit or 2 bits.

Further, when the second preset threshold is greater than 1, comparing the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time with the second preset threshold may be specifically divided into three cases:

if the HARQ-ACK of the SPS PDSCHs needs to be transmitted at the current moment, the number of the SPS PDSCHs is larger than a second preset threshold, or the number of bits of the HARQ-ACK of the SPS PDSCHs is larger than the second preset threshold, a first PUCCH resource is used for transmitting the HARQ-ACK;

if the HARQ-ACK of the SPS PDSCHs needs to be transmitted at the current moment, the number of the SPS PDSCHs is smaller than or equal to a second preset threshold, or the number of bits of the HARQ-ACK of the SPS PDSCHs is smaller than the second preset threshold, one of second PUCCH resources corresponding to the SPS PDSCHs is used for transmitting the HARQ-ACK;

and if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current moment, using a second PUCCH resource corresponding to the SPS PDSCH to transmit one HARQ-ACK.

For example, the first preset threshold is 3, the second preset threshold is 2, and if the HARQ-ACK of 4 SPS PDSCHs needs to be transmitted at the current time, the first PUCCH resource is used to transmit the 4-bit HARQ-ACK of the 4 SPS PDSCHs; if the HARQ-ACK of the two SPS PDSCHs needs to be transmitted at the current moment, using one of second PUCCH resources corresponding to the two SPS PDSCHs to transmit the 2-bit HARQ-ACK of the two SPS PDSCHs; and if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current moment, transmitting the 1-bit HARQ-ACK of the SPS PDSCH by using a second PUCCH resource corresponding to the SPS PDSCH.

Based on any of the above embodiments, in the method, if the total amount of information of HARQ-ACK of SPS PDSCH that needs to be transmitted at the current time is greater than the second preset threshold, when the HARQ-ACK is transmitted using the first PUCCH resource, if the size of the second preset threshold is different from the size of the first preset threshold, the number of bits of HARQ-ACK also needs to be compared with the size of the first preset threshold:

Specifically, the first PUCCH resource is a resource in a PUCCH format carrying information larger than a first preset threshold bit, and when the number of bits that the first PUCCH resource needs to be used to transmit the HARQ-ACK is smaller than or equal to the first preset threshold, a Z bit needs to be added to the last bit of the HARQ-ACK, so that the number of bits of the HARQ-ACK after bit addition is larger than the first preset threshold.

Based on any of the above embodiments, in the method, if the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, when the HARQ-ACK is transmitted using the first PUCCH resource, the method further includes: and when the terminal corresponds to a plurality of first PUCCH resources, selecting one first PUCCH resource with the minimum bearing capacity, the bearing capacity of which is not less than the bit number of the HARQ-ACK, from the plurality of first PUCCH resources, and transmitting the HARQ-ACK.

Specifically, the base station may configure a plurality of first PUCCH resources for the terminal in advance, where different PUCCH resources have different bearer capacities, so as to better support the HARQ-ACK multiplexing transmission for SPS PDSCHs with different bit numbers. When the terminal corresponds to a plurality of first PUCCH resources, each of the plurality of first PUCCH resources has a respective PUCCH transmission parameter, which includes information such as PUCCH transmission symbol number, symbol start position, PRB number, code rate, orthogonal sequence (if needed) number, and according to the PUCCH transmission parameter and a modulation scheme (e.g. QPSK) used by the PUCCH, a maximum information bit number Y that can be carried by each first PUCCH resource can be calculated, for example:

in the formula (I), the compound is shown in the specification,

the number of PRBs used for PUCCH transmission,

for the number of REs or subcarriers included in each PRB for UCI information transmission (i.e. the number of pilot REs or subcarriers is removed),

number of symbols occupied by PUCCH for transmitting UCI (i.e. number of symbols for transmitting pilot only is removed), Q_mFor modulation order, Q is used, for example, when the modulation scheme used for PUCCH is QPSK_mR is the code rate, i.e. the maximum code rate transmitted on the first PUCCH resource, 2.

When (O)_ACK+O_CRC) When the value is less than or equal to Y, determining that the first PUCCH resource can bear O_ACKBit HARQ-ACK transmission where O_CRCLength of CRC check bits when encoding for HARQ-ACK, O if CRC check is not used_CRC0. If the PUCCH resources carrying SR and/or CSI are overlapped with the PUCCH resources carrying HARQ-ACK of SPS PDSCH in the current transmission opportunity of HARQ-ACK, the SR and/or CSI can be transmitted on the first PUCCH resources together with the HARQ-ACK of SPS PDSCH, wherein when determining which first PUCCH resource to use, the H of the SPS PDSCH is compared with the SR and/or CSIThe total number of bits of the ARQ-ACK and the corresponding number of CRC bits are used to determine the first PUCCH resource to be used in a similar manner as described above.

After the number of bits that each first PUCCH resource can carry HARQ-ACK, that is, the carrying capacity of each first PUCCH resource is determined, the number of bits of HARQ-ACK of the SPS PDSCH that needs to be transmitted at the current time may be compared with the carrying capacity of each first PUCCH resource, and then the first PUCCH resource having the carrying capacity not less than the number of bits of HARQ-ACK is selected from each first PUCCH resource. And then, selecting one first PUCCH resource with the smallest bearing capacity from the first PUCCH resources with the bearing capacity not less than the bit number of the HARQ-ACK for the transmission of the HARQ-ACK, thereby saving PUCCH transmission overhead.

For example, the terminal corresponds to the first PUCCH resources a and B, and the bearer capacities of the first PUCCH resources a and B are 10 bits and 5 bits, respectively. If the bit number of the HARQ-ACK needing to be transmitted at the moment is 8, selecting a first PUCCH resource A for HARQ-ACK transmission; and if the bit number of the HARQ-ACK needing to be transmitted at the current time is 5, selecting a first PUCCH resource B for HARQ-ACK transmission.

Based on any of the above embodiments, in the method, under the condition that HARQ-ACKs of a plurality of SPS PDSCHs need to be transmitted at the current time and the total amount of HARQ-ACKs of the plurality of SPS PDSCHs is less than or equal to a second preset threshold, if the second PUCCH resource is a resource of PUCCH format 1, multi-bit HARQ-ACKs of the plurality of SPS PDSCHs are modulated to obtain one modulation symbol, and one modulation symbol is transmitted by using one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs.

Specifically, assuming that the number of bits of the HARQ-ACK of the SPS PDSCH that needs to be transmitted at the current time is C, the multi-bit HARQ-ACK may be modulated by using a Quadrature Amplitude Modulation (XQAM) to obtain one Modulation symbol, and the Modulation symbol is transmitted on the second PUCCH resource, where X is 2^C. For example, when the bit number of the HARQ-ACK of the SPS PDSCH to be transmitted at the current time is 2, the multi-bit HARQ-ACK is modulated by using 4QAM (quadrature phase shift keying QPSK), so as to obtain a modulation symbol, and the modulation symbol is transmitted on the second PUCCH resource.

Based on any of the above embodiments, in the method, when HARQ-ACKs of multiple SPS PDSCHs need to be transmitted at the current time, and the total amount of HARQ-ACKs of the multiple SPS PDSCHs is less than or equal to a second preset threshold, if the second PUCCH resource is a resource of PUCCH format 0, a cyclic shift corresponding to the multiple bit HARQ-ACKs of the multiple SPS PDSCHs is determined according to a correspondence between the multiple bit HARQ-ACK information and each cyclic shift in the candidate cyclic shift set, and a sequence corresponding to the cyclic shift is transmitted using one of the second PUCCH resources corresponding to the multiple SPS PDSCHs.

Specifically, assuming that the number of bits of HARQ-ACK of SPS PDSCH that needs to be transmitted at the current time is C, X cyclic shifts exist in the corresponding candidate cyclic shift set, where X is 2^C. In the candidate cyclic shift set, each cyclic shift corresponds to specific information (i.e., the combined state of ACK and NACK) of HARQ-ACK of one C bit. After determining the multi-bit HARQ-ACK of the plurality of SPS PDSCHs currently required to be transmitted, the corresponding cyclic shift may be determined from the candidate cyclic shift set according to the correspondence between the multi-bit HARQ-ACK information and each cyclic shift in the candidate cyclic shift set, and a sequence corresponding to the cyclic shift may be transmitted on the second PUCCH resource. For example when the number of bits of HARQ-ACK for SPS PDSCH that needs to be transmitted at the current time is 2, the 4 candidate cyclic shift values may be determined according to the initial cyclic shift parameter corresponding to the second PUCCH resource, for example, the initial cyclic shift parameter is 0, from a fixed cyclic shift interval of 3, 4 candidates of cyclic shift values 0, 3, 6, 9 can be determined, according to the predefined correspondence relationship between the candidate cyclic shift values and different 2-bit HARQ-ACK information, as shown in table 1 (for example, 0 indicates NACK, 1 indicates ACK), a cyclic shift value of one candidate corresponding to the 2-bit HARQ-ACK currently to be fed back may be determined, generating a sequence according to the cyclic shift value and transmitting the sequence on a second PUCCH resource, the transmission of the corresponding HARQ-ACK information is expressed by transmitting the sequences generated using the different cyclic shifts.

Table 1:

HARQ-ACK	{0,0}	{0,1}	{1,1}	{1,0}
					cyclic shift	0	3	6	9

Based on any embodiment, under the condition that HARQ-ACK of a plurality of SPS PDSCHs need to be transmitted at the current moment and the total amount of the HARQ-ACK information of the plurality of SPS PDSCHs is less than or equal to a second preset threshold, a second PUCCH resource corresponding to the last SPS PDSCH in the plurality of SPS PDSCHs is used for transmitting the HARQ-ACK; the SPS PDSCH are sequenced according to the ascending sequence of the carrier serial number firstly and the time secondly.

Herein, the ascending order of the carrier numbers first and the time sequence later mean that if a plurality of SPS PDSCHs exist on a plurality of carriers at one time, HARQ-ACKs of the SPS PDSCHs are ordered according to the sequence from the carrier numbers from small to large, and after the ordering is based on the carrier numbers, if SPS PDSCHs exist on a plurality of times, HARQ-ACKs corresponding to the SPS PDSCHs at each time are ordered according to the time sequence of the SPS PDSCHs. And after finishing sequencing the plurality of SPS PDSCHs, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the last SPS PDSCH in the plurality of SPS PDSCHs.

In addition, it is not excluded that the carriers are ordered from large to sequential, and the terminal and the base station agree on the same way.

Based on any of the above embodiments, in the method, the first PUCCH resource is a resource in any of PUCCH format 2, PUCCH format 3, and PUCCH format 4. Of course, if new PUCCH formats with large capacity (capable of carrying information transmission larger than the first preset threshold) are defined subsequently, these new PUCCH formats are also included.

Based on any of the above embodiments, in the method, if the current time needs to transmit HARQ-ACKs of multiple SPS PDSCHs, the method further includes: sequencing the SPS PDSCHs according to the ascending sequence of the carrier numbers firstly and the sequence of the transmission time secondly on the basis of the carrier numbers and/or the transmission time of each SPS PDSCH; and cascading the HARQ-ACK of the SPS PDSCH according to the sequence of the SPS PDSCH to obtain the HARQ-ACK.

Specifically, when the HARQ-ACKs of multiple SPS PDSCHs need to be transmitted at the current time, the HARQ-ACKs of the multiple SPS PDSCHs need to be sequenced according to the sequence of the ascending carrier number first and the sequence of the transmission time later, and are cascaded together according to the sequencing sequence. Herein, the ascending order of the carrier numbers first and the time sequence later mean that if a plurality of SPS PDSCHs exist on a plurality of carriers at one time, HARQ-ACKs of the SPS PDSCHs are ordered according to the sequence from the carrier numbers from small to large, and after the ordering is based on the carrier numbers, if SPS PDSCHs exist on a plurality of times, HARQ-ACKs corresponding to the SPS PDSCHs at each time are ordered according to the time sequence of the SPS PDSCHs.

Correspondingly, if the HARQ-ACK of the SPS PDSCH needs to be transmitted at the current moment, and the total amount of the HARQ-ACK information of the SPS PDSCH is larger than a second preset threshold, the HARQ-ACK of the SPS PDSCH after cascade connection is transmitted by applying a first PUCCH resource; and if the HARQ-ACK of the SPS PDSCH needs to be transmitted at the current moment and the total amount of the HARQ-ACK information of the SPS PDSCH is less than or equal to a second preset threshold, using one of second PUCCH resources corresponding to the SPS PDSCH to transmit the HARQ-ACK of the cascaded SPS PDSCH. This is true for the case where the HARQ-ACK for the SPS PDSCH described above is transmitted on the first PUCCH resource or the second PUCCH resource.

Based on any of the above embodiments, fig. 2 is a schematic flow chart of a HARQ-ACK transmission method for SPS PDSCH according to another embodiment of the present invention, as shown in fig. 2, the main execution body of the method is a base station in an NR system, and the method includes:

and step 210, if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is greater than a second preset threshold value, using the first PUCCH resource to receive the HARQ-ACK.

And step 220, if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is less than or equal to a second preset threshold, using a second PUCCH resource corresponding to the SPS PDSCH to receive the HARQ-ACK.

The base station configures at least one first PUCCH resource for transmitting HARQ-ACK of a plurality of SPS PDSCHs to the terminal, wherein each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration (for example, the base station indicates one second PUCCH resource for each SPS configuration in advance through configuration signaling); the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value. The SPS PDSCH here may be SPS PDSCH in multiple transmission opportunities of one SPS configuration, or SPS PDSCH corresponding to different SPS configurations.

Specifically, the base station pre-configures two PUCCH resources for transmitting HARQ-ACK feedback of the SPS PDSCH for the terminal, and respectively configures a first PUCCH resource and a second PUCCH resource, where one or more first PUCCH resources may be configured for the terminal, each first PUCCH resource is shared for all SPS configurations and SPS PDSCH transmission, is used for transmitting multiple HARQ-ACKs of the SPS PDSCH, and indicates one second PUCCH resource for each SPS configuration, and each SPS PDSCH transmission at a transmission position determined by one SPS configuration according to a period corresponds to the second PUCCH resource corresponding to the SPS configuration. The bearable capacity of the first PUCCH resource exceeds a first preset threshold bit, the first PUCCH resource at least bears second preset threshold bit information, the bearable capacity of the second PUCCH resource is less than or equal to the first preset threshold bit, the second PUCCH resource bears second preset threshold bit information at most, the capacity of the first PUCCH resource is greater than that of the second PUCCH resource, and the first PUCCH resource is a large-capacity PUCCH resource additionally arranged on the basis of the prior art.

The first preset threshold and the second preset threshold are both preset positive integers, and the second preset threshold is smaller than or equal to the first preset threshold, for example, the first preset threshold and the second preset threshold are both 1, or the first preset threshold is 2, the second preset threshold is 1, or the first preset threshold is 4, and the second preset threshold is 2.

When the base station executes the HARQ-ACK reception of the SPS PDSCH, the base station compares the total amount of the HARQ-ACK information of the SPS PDSCH which needs to be received at the current time with the size of a second preset threshold value, so as to determine to trigger step 210 or step 220 to execute the HARQ-ACK reception. Here, the current time may be a current subframe, a time slot, or a sub-time slot, or other predefined time units, such as T symbols as a time unit; the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time may be represented by the number of corresponding SPS PDSCHs, where the number of HARQ-ACK bits of one SPS PDSCH is fixed, for example, predefined as 1 bit, and may also be represented by the number of HARQ-ACK bits.

And if the number of the SPS PDSCHs needing to be transmitted with the HARQ-ACK at the current moment is larger than a second preset threshold, or the number of the HARQ-ACK bits of the SPS PDSCH needing to be transmitted is larger than the second preset threshold, using the first PUCCH resource to receive the HARQ-ACK. Here, the first PUCCH resource enables multiplexed transmission of HARQ-ACKs for a plurality of SPS PDSCHs whose total amount of information is greater than a second preset threshold.

And if the number of the SPS PDSCHs needing to be transmitted with the HARQ-ACK at the current moment is smaller than or equal to a second preset threshold, or the number of the HARQ-ACK bits of the SPS PDSCH needing to be transmitted is smaller than or equal to the second preset threshold, receiving the HARQ-ACK based on a second PUCCH resource corresponding to the SPS PDSCH. It should be noted that, if the SPS PDSCH which needs to transmit the HARQ-ACK at present is one or needs to transmit the HARQ-ACK corresponding to the SPS PDSCH with 1 bit, the second PUCCH resource corresponding to the SPS PDSCH is directly used for receiving the HARQ-ACK; if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the SPS PDSCH needing to transmit the HARQ-ACK currently corresponds to the same SPS configuration, directly using a second PUCCH resource corresponding to the SPS configuration for receiving the plurality of bits HARQ-ACK; if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the SPS PDSCH needing to transmit the HARQ-ACK currently corresponds to different SPS configurations, selecting one from second PUCCH resources corresponding to the different SPS configurations for receiving the multi-bit HARQ-ACK; and if the SPS PDSCH needing to transmit the HARQ-ACK currently is a plurality of HARQ-ACK or needs to transmit a plurality of bits corresponding to the SPS PDSCH, and the SPS PDSCH needing to transmit the HARQ-ACK currently has SPS PDSCHs corresponding to different SPS configurations and also has SPS PDSCH corresponding to the same SPS configuration, selecting one from second PUCCH resources corresponding to different SPS configurations for receiving the multi-bit HARQ-ACK.

According to any of the above embodiments, in the method, the second preset threshold is 1; correspondingly, the first PUCCH resource is used for carrying HARQ-ACK of a plurality of SPS PDSCHs, and the second PUCCH resource is used for carrying HARQ-ACK of 1 SPS PDSCH.

if the number of SPS PDSCHs needing to be transmitted with HARQ-ACK at the current time is larger than 1, or the bit number of the HARQ-ACK of the SPS PDSCH needing to be transmitted is larger than 1, namely the HARQ-ACK of a plurality of SPS PDSCHs need to be transmitted at the current time, using a first PUCCH resource to receive the HARQ-ACK;

and if the number of the SPS PDSCHs needing to be transmitted with the HARQ-ACK at the current time is 1 or the bit number of the HARQ-ACK of the SPS PDSCH needing to be transmitted is 1, namely the HARQ-ACK of only one SPS PDSCH needs to be transmitted at the current time, receiving one HARQ-ACK based on the second PUCCH resource corresponding to the SPS PDSCH.

if the HARQ-ACK of the SPS PDSCHs needs to be transmitted at the current moment, the number of the SPS PDSCHs is larger than a second preset threshold, or the number of bits of the HARQ-ACK of the SPS PDSCHs is larger than the second preset threshold, a first PUCCH resource is used for receiving the HARQ-ACK;

if the HARQ-ACK of the SPS PDSCHs needs to be transmitted at the current moment, the number of the SPS PDSCHs is smaller than or equal to a second preset threshold, or the number of bits of the HARQ-ACK of the SPS PDSCHs is smaller than the second preset threshold, one of second PUCCH resources corresponding to the SPS PDSCHs is used for receiving the HARQ-ACK;

and if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current moment, using a second PUCCH resource corresponding to the SPS PDSCH to receive one HARQ-ACK.

For example, the first preset threshold is 3, the second preset threshold is 2, and if HARQ-ACK of 4 SPS PDSCHs needs to be transmitted at the current time, the first PUCCH resource is used to receive 4-bit HARQ-ACK of the 4 SPS PDSCHs; if the HARQ-ACK of the two SPS PDSCHs needs to be transmitted at the current moment, using one of second PUCCH resources corresponding to the two SPS PDSCHs to receive the 2-bit HARQ-ACK of the two SPS PDSCHs; and if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current time, using a second PUCCH resource corresponding to the SPS PDSCH to receive the 1-bit HARQ-ACK of the SPS PDSCH.

and if the bit number of the HARQ-ACK does not exceed a first preset threshold, determining that the information sequence received by using the first PUCCH resource is an information sequence obtained by complementing Z bits at the tail of the HARQ-ACK, wherein Z is the difference between the first preset threshold +1 and the bit number of the HARQ-ACK.

Based on any of the above embodiments, in the method, if the total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, when receiving HARQ-ACK using the first PUCCH resource, the method further includes: and when the terminal corresponds to a plurality of first PUCCH resources, selecting one first PUCCH resource with the smallest bearing capacity, the bearing capacity of which is not less than the bit number of the HARQ-ACK, from the plurality of first PUCCH resources, and receiving the HARQ-ACK.

Specifically, the base station may configure a plurality of first PUCCH resources for the terminal in advance, where different PUCCH resources have different bearer capacities, so as to better support the HARQ-ACK multiplexing transmission for SPS PDSCHs with different bit numbers. When a plurality of first PUCCH resources are configured for the terminal, each of the plurality of first PUCCH resources has a respective PUCCH transmission parameter, which includes information such as PUCCH transmission symbol number, symbol start position, PRB number, code rate, orthogonal sequence (if needed) number, and according to the PUCCH transmission parameter and a modulation scheme (e.g. QPSK) used by the PUCCH, a maximum information bit number Y that can be carried by each first PUCCH resource can be calculated, for example:

in the formula (I), the compound is shown in the specification,

the number of PRBs used for PUCCH transmission,

When (O)_ACK+O_CRC) When the value is less than or equal to Y, determining that the first PUCCH resource can bear O_ACKBit HARQ-ACK transmission where O_CRCEncoding for HARQ-ACKLength of CRC check bits in time, if CRC check is not used, O_CRC0. If the PUCCH resources carrying SR and/or CSI are overlapped with the PUCCH resources carrying the HARQ-ACK of the SPS PDSCH in the current transmission opportunity of the HARQ-ACK, the SR and/or CSI can be determined to be transmitted on the first PUCCH resources together with the HARQ-ACK of the SPS PDSCH, and when determining which first PUCCH resource to use, the used first PUCCH resource can be determined according to the SR and/or CSI, the total number of bits of the HARQ-ACK of the SPS PDSCH and the corresponding CRC number of bits in a similar manner as described above.

After the number of bits that each first PUCCH resource can carry HARQ-ACK, that is, the carrying capacity of each first PUCCH resource is determined, the number of bits of HARQ-ACK of the SPS PDSCH that needs to be transmitted at the current time may be compared with the carrying capacity of each first PUCCH resource, and then the first PUCCH resource having the carrying capacity not less than the number of bits of HARQ-ACK is selected from each first PUCCH resource. And then, selecting one first PUCCH resource with the smallest bearing capacity from the first PUCCH resources with the bearing capacity not less than the bit number of the HARQ-ACK for receiving the HARQ-ACK, thereby saving PUCCH transmission overhead.

For example, the terminal corresponds to the first PUCCH resource A, B, and the bearer capacity of the first PUCCH resource A, B is 10 bits and 5 bits, respectively. If the bit number of the HARQ-ACK needing to be transmitted at the moment is 8, selecting a first PUCCH resource A to receive the HARQ-ACK; and if the bit number of the HARQ-ACK needing to be transmitted at the current moment is 5, selecting a first PUCCH resource B to receive the HARQ-ACK.

Based on any of the above embodiments, in the method, when HARQ-ACKs of a plurality of SPS PDSCHs need to be transmitted at the current time and the total amount of HARQ-ACKs of the plurality of SPS PDSCHs is less than or equal to a second preset threshold, if a second PUCCH resource is a resource of PUCCH format 1, one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs is used to receive one modulation symbol; and demodulating one modulation symbol to obtain HARQ-ACK of a plurality of SPS PDSCHs.

Specifically, assuming that the number of bits of HARQ-ACK of SPS PDSCH that needs to be transmitted at the current time is C, XQAM (Quadrature Amplitude Modulation) may be usedModulation) performs demodulation using one modulation symbol received on the second PUCCH resource, thereby obtaining a multi-bit HARQ-ACK, where X is 2^C. For example, when the bit number of the HARQ-ACK of the SPS PDSCH to be transmitted at the current time is 2, the received modulation symbols are demodulated based on 4QAM (i.e., quadrature phase shift keying QPSK), and the HARQ-ACKs of the SPS PDSCHs are obtained.

Based on any of the above embodiments, in the method, when HARQ-ACKs of a plurality of SPS PDSCHs need to be transmitted at the current time and the total amount of HARQ-ACKs of the plurality of SPS PDSCHs is less than or equal to a second preset threshold, if a second PUCCH resource is a resource of PUCCH format 0, one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs is used to receive a cyclically shifted sequence; and determining the HARQ-ACK of the SPS PDSCH based on the received cyclic shift corresponding to the sequence and the corresponding relation between the multi-bit HARQ-ACK information of the SPS PDSCH and the cyclic shift in the candidate cyclic shift set.

Specifically, assuming that the number of bits of HARQ-ACK of SPS PDSCH that needs to be transmitted at the current time is C, X cyclic shifts exist in the corresponding candidate cyclic shift set, where X is 2^C. In the candidate cyclic shift set, each cyclic shift corresponds to HARQ-ACK specific information (i.e., combination status of ACK and NACK) of one C bit. After receiving the sequence corresponding to the cyclic shift by applying the second PUCCH resource, the multi-bit HARQ-ACK information corresponding to the cyclic shift may be determined according to the correspondence between the multi-bit HARQ-ACK information and each cyclic shift in the candidate cyclic shift set, and then the HARQ-ACKs of the plurality of SPS PDSCHs may be determined. For example, when the number of bits of HARQ-ACK of SPS PDSCH that needs to be transmitted at the current time is 2, 4 candidate cyclic shift values may be determined according to the initial cyclic shift parameter corresponding to the second PUCCH resource, for example, the initial cyclic shift parameter is 0, and the fixed cyclic shift interval is 3, the 4 candidate cyclic shift values of 0, 3, 6, and 9 may be determined, and according to the predefined correspondence between the candidate cyclic shift values and different 2-bit HARQ-ACK information, as shown in table 1 (for example, 0 represents NACK and 1 represents ACK), the base station performs blind detection (i.e., tries to receive sequences corresponding to cyclic shifts 0, 3, 6, and 9, respectively) on the second PUCCH resourceReceiving a sequence by 4 sequences of cyclic shift 0, 3, 6 and 9, looking up table 1 according to the cyclic shift corresponding to the received sequence, and obtaining 2-bit HARQ-ACK information corresponding to the cyclic shift.

Based on any embodiment, under the condition that the HARQ-ACK of the SPS PDSCH needs to be transmitted at the current time and the total quantity of the HARQ-ACK of the SPS PDSCH is less than or equal to a second preset threshold, using a second PUCCH resource corresponding to the last SPS PDSCH in the SPS PDSCH to receive the HARQ-ACK; the SPS PDSCH are sequenced according to the ascending sequence of the carrier serial number firstly and the time secondly.

Herein, the ascending order of the carrier numbers first and the time sequence later mean that if a plurality of SPS PDSCHs exist on a plurality of carriers at one time, HARQ-ACKs of the SPS PDSCHs are ordered according to the sequence from the carrier numbers from small to large, and after the ordering is based on the carrier numbers, if SPS PDSCHs exist on a plurality of times, HARQ-ACKs corresponding to the SPS PDSCHs at each time are ordered according to the time sequence of the SPS PDSCHs. And after finishing sequencing the plurality of SPS PDSCHs, using a second PUCCH resource corresponding to the last SPS PDSCH in the plurality of SPS PDSCHs to receive the HARQ-ACK.

Based on any of the above embodiments, in the method, if the current time needs to transmit HARQ-ACKs of multiple SPS PDSCHs, the method further includes: sequencing the SPS PDSCHs according to the ascending sequence of the carrier numbers firstly and the sequence of the transmission time secondly on the basis of the carrier numbers and/or time of each SPS PDSCH; and determining HARQ-ACK of the plurality of SPS PDSCHs from the received HARQ-ACK according to the ordering sequence of the plurality of SPS PDSCHs.

Specifically, when the HARQ-ACKs of multiple SPS PDSCHs need to be transmitted at the current time, the terminal may sequence the HARQ-ACKs of the multiple SPS PDSCHs according to the ascending order of the carrier numbers first and the order of the transmission time later, and concatenate the HARQ-ACKs according to the sequence. Herein, the ascending order of the carrier numbers first and the time sequence later mean that if a plurality of SPS PDSCHs exist on a plurality of carriers at one time, HARQ-ACKs of the SPS PDSCHs are ordered according to the sequence from the carrier numbers from small to large, and after the ordering is based on the carrier numbers, if SPS PDSCHs exist on a plurality of times, HARQ-ACKs corresponding to the SPS PDSCHs at each time are ordered according to the time sequence of the SPS PDSCHs. This is true for the case where the HARQ-ACK for the SPS PDSCH described above is transmitted on the first PUCCH resource or the second PUCCH resource.

Correspondingly, the base station receives HARQ-ACK after the HARQ-ACK concatenation of a plurality of SPS PDSCHs. The base station sequences the SPS PDSCHs according to the sequence of ascending carrier numbers and the sequence of transmission time, and determines the HARQ-ACK of each SPS PDSCH in sequence from the received concatenated HARQ-ACK according to the sequence.

Based on any of the above embodiments, fig. 3 is a schematic diagram of HARQ-ACK transmission of SPS PDSCHs provided by the embodiments of the present invention, as shown in fig. 3, a terminal has 3 SPS configurations, determines an SPS PDSCH transmission opportunity corresponding to each SPS configuration according to a period of each SPS configuration and a time-frequency domain resource indicated in an activation signaling of each SPS PDSCH, and determines a HARQ-ACK feedback slot of each SPS PDSCH according to a feedback timing relationship K1 configured by a higher layer signaling or indicated in the activation signaling of each SPS PDSCH. Here, K1 denotes a slot interval between a slot in which the SPS PDSCH is located and a slot in which HARQ-ACK transmission of the SPS PDSCH is located.

Assume that K1 for each SPS PDSCH is equal to 2, SPS PDSCH-1 corresponds to SPS configuration 1 with a period of 1 slot, SPS PDSCH-2 corresponds to SPS configuration 2 with a period of 2 slots, and SPS PDSCH-3 corresponds to SPS configuration 3 with a period of 5 slots. It is assumed that when the higher layer signaling performs the related parameter configuration on each SPS configuration, each SPS configuration is configured to correspond to one second PUCCH resource, where the second PUCCH resource may be PUCCH format 0 or 1 resource, for example, the second PUCCH resource is PUCCH format 1 resource, SPS PDSCH-1 corresponds to one PUCCH format 1 resource, which is hereinafter referred to as PUCCH resource 1, SPS PDSCH-2 corresponds to one PUCCH format 1 resource, which is hereinafter referred to as PUCCH resource 2, and SPS PDSCH-3 corresponds to one PUCCH format 1 resource, which is hereinafter referred to as PUCCH resource 3. In addition, in order to support HARQ-ACK multiplexed transmission of multiple SPS PDSCHs, a first PUCCH resource is additionally configured, where the first PUCCH resource may be

PUCCH format

2, 3, or 4 resources, for example, the first PUCCH resource is 1 PUCCH format 2 resource, which is hereinafter referred to as PUCCH resource 4, and is used to implement HARQ-ACK multiplexed transmission of multiple SPS PDSCHs. Assuming that the first preset threshold a is 2, that is, the first PUCCH resource may carry information transmission of 2 bits or more, and the second PUCCH resource may carry information transmission of 1-2 bits.

In a time Slot (Slot) n, SPS PDSCH transmission exists on 3 carriers, namely DL CC1, CC2 and CC3, respectively, and the 3 SPS PDSCHs all need HARQ-ACK feedback in a time Slot n +2, so that it is determined that HARQ-ACK of a 3-bit SPS PDSCH exists in the time Slot n +2, or there are 3 SPS PDSCHs which need HARQ-ACK feedback in the time Slot n + 2. When the second preset threshold B is 2 or 1, the number of HARQ-ACK bits of the SPS PDSCH (or the number of SPS PDSCHs) exceeds the second preset threshold B, and therefore, the first PUCCH resource (PUCCH resource 4) needs to be used for transmission. And the terminal concatenates the HARQ-ACK of the 3 SPS PDSCHs in sequence from low to high according to the carrier number to obtain 3-bit HARQ-ACK, and the 3-bit HARQ-ACK is mapped to a time domain symbol and a frequency domain RB resource corresponding to the first PUCCH resource for transmission after operations such as channel coding, rate matching, scrambling, modulation and the like.

In the time slot n +1, only 1 SPS PDSCH-1 transmission exists on the carrier DL CC1, and corresponding HARQ-ACK feedback is performed in the time slot n +3, it is determined that only 1 bit of HARQ-ACK for SPS PDSCH exists in the time slot n +3, or only 1 SPS PDSCH exists and HARQ-ACK feedback needs to be performed in the time slot n + 3. When the second preset threshold B is 2 or 1, the number of HARQ-ACK bits of the SPS PDSCH (or the number of SPS PDSCHs) does not exceed the second preset threshold B, and therefore, the transmission needs to use the second PUCCH resource (PUCCH resource 1) corresponding to the SPS PDSCH-1. And the terminal performs BPSK modulation on the HARQ-ACK of the 1 SPS PDSCH to obtain 1 modulation symbol, and maps the modulation symbol to a time domain symbol and a frequency domain RB resource corresponding to the PUCCH resource 1 for transmission.

In the time slot n +2, SPS PDSCH transmission exists on two carriers, DL CC1 and CC2, respectively, and both SPS PDSCHs need HARQ-ACK feedback in the time slot n +4, it is determined that HARQ-ACK of 2-bit SPS PDSCH exists in the time slot n +4, or there are 2 SPS PDSCHs that need HARQ-ACK feedback in the time slot n + 4. Assuming that the second preset threshold B is 1: the bit number of the HARQ-ACK of the SPS PDSCH (or the number of the SPS PDSCHs) exceeds a second preset threshold B, so that a first PUCCH resource (PUCCH resource 4) is needed to be used for transmission, the terminal concatenates the HARQ-ACK of the 2 SPS PDSCHs together according to the carrier number from low to high in sequence to obtain the HARQ-ACK of the 2-bit SPS PDSCH, carries out bit complementing on the tail by 1-bit information to obtain the SPS HARQ-ACK with 3-bit complemented bits, and maps the SPS HARQ-ACK to a time domain symbol and a frequency domain RB resource corresponding to the first PUCCH resource for transmission after operations such as channel coding, rate matching, scrambling and modulation; assuming that the number of bits of HARQ-ACK of SPS PDSCH (or the number of SPS PDSCH) does not exceed the second preset threshold B when the second preset threshold B is 2, it is necessary to select one second PUCCH resource from the second PUCCH resources (PUCCH resource 1 and PUCCH resource 2) corresponding to SPS PDSCH-1 and SPS PDSCH-2 for transmission, for example, when the second PUCCH resource corresponding to SPS PDSCH on CC with the smallest carrier number is selected, determine to use the second PUCCH resource (PUCCH resource 1) corresponding to SPS PDSCH-1 for transmission, concatenate HARQ-ACK of 2 SPS PDSCH to obtain 2-bit SPS HARQ-ACK, obtain 1 modulation symbol after QPSK modulation, and map the 2-bit SPS HARQ-ACK to the time domain symbol and frequency domain RB resource corresponding to PUCCH resource 1 for transmission.

The transmission mode in the subsequent time slot is similar to the corresponding time slot according to the number of the SPS PDSCH, and the embodiment of the invention is not repeated.

And the base station side determines how many bits of SPS HARQ-ACK are received in which time slot according to which PUCCH resource according to the same processing mode as the terminal, so that HARQ-ACK feedback information corresponding to the SPS PDSCH is obtained.

It should be noted that, in the embodiment of the present invention, only multiple SPS PDSCHs exist simultaneously on different carriers in the same time slot is taken as an example, multiple SPS exist in different time slots, and the multiple SPS PDSCHs correspond to different K1 values, so that HARQ-ACK feedback needs to be performed in the same time slot for obtaining the SPS PDSCHs on multiple different time slots (which may be the same carrier or different carriers), and the processing manner is the same as above, and the difference is only that when HARQ-ACK of the SPS PDSCH is concatenated, and when a second PUCCH resource is used, a time domain sequence also needs to be considered when a second PUCCH resource corresponding to the SPS PDSCH is selected.

In addition, in the embodiment of the present invention, only a plurality of SPS configurations are taken as an example, or an SPS PDSCH in a plurality of SPS PDSCH transmission opportunities configured by one SPS needs to perform HARQ-ACK feedback in the same time slot, for example, in a TDD system, uplink transmission and downlink transmission share the same frequency domain resource, and uplink resources and downlink resources are divided in a TDM manner, so that only part of the time slots have uplink resources, instead of uplink resources in any one time slot shown in fig. 3, at this time, a plurality of SPS PDSCHs may have to lag back feedback positions because uplink positions corresponding to processing delays of the SPS PDSCHs cannot be found for feedback, so that a plurality of SPS PDSCHs corresponding to the same SPS configuration need to be fed back in the same time slot, and the processing manner is the same as above, and is not described herein again. At this time, if the HARQ-ACK feedback of the plurality of SPS PDSCHs uses the second PUCCH resource, since the second PUCCH resources corresponding to the respective SPS PDSCHs are the same, the second PUCCH resource does not need to be selected.

In the embodiment of the present invention, only the case where the uplink and downlink subcarrier intervals or the baseband parameter numerology are the same is taken as an example, different subcarrier intervals may be used between different DL carriers, and between a DL carrier and an UL carrier, and at this time, according to the feedback timing definition under the condition of different subcarrier intervals, it can also be determined which SPS PDSCHs need to perform HARQ-ACK feedback in the same timeslot, and the processing manner is the same as above, and is not described here again.

The embodiment of the invention only takes the HARQ-ACK for transmitting the SPS PDSCH as an example, if the PUCCH resources for bearing SR and/or CSI are overlapped with the PUCCH resources for bearing the HARQ-ACK for the SPS PDSCH at the current moment, and the SR and/or CSI can be transmitted on the first PUCCH resources together with the HARQ-ACK for the SPS PDSCH, namely, the first PUCCH resources or the second PUCCH resources are selected to be used for transmission according to the SR and/or CSI and the comparison result of the total bit number of the HARQ-ACK for the SPS PDSCH and the second preset threshold value. When a plurality of first PUCCH resources are present, the first PUCCH resources used may be determined in a capacity manner similar to that described above, based on the SR and/or CSI, the total number of bits of HARQ-ACK corresponding to the SPS PDSCH, and the corresponding number of CRC bits.

Based on any of the above embodiments, fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention, as shown in fig. 4, the terminal includes a first transmission unit 410 and a second transmission unit 420;

the first transmission unit 410 is configured to transmit, if a total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK using the first PUCCH resource;

a second transmitting unit 420 is configured to transmit the HARQ-ACK using a second PUCCH resource corresponding to the SPS PDSCH otherwise;

The terminal provided by the embodiment of the invention is used for multiplexing and transmitting the HARQ-ACK of the SPS PDSCH by using the first PUCCH resource through configuring the additional large-capacity resource, namely the first PUCCH resource, when the HARQ-ACK of the SPS PDSCH collides, so as to support the multiplexing transmission of the HARQ-ACK of the SPS PDSCH, thereby ensuring the normal feedback of the HARQ-ACK of the SPS PDSCH when the SPS PDSCH reduces the period or configures a plurality of SPS configurations, and improving the system performance.

Based on any of the above embodiments, in the terminal, the second preset threshold is 1;

Based on any of the above embodiments, in the terminal, the second preset threshold is greater than 1;

Based on any of the above embodiments, in the terminal, the first transmission unit 410 is specifically configured to:

the second transmission unit 420 is specifically configured to:

the second transmission unit 420 includes:

a multi-bit transmission subunit, configured to transmit, if HARQ-ACKs of multiple SPS PDSCHs need to be transmitted at the current time and a total amount of HARQ-ACKs of the multiple SPS PDSCHs is less than or equal to the second preset threshold, one of second PUCCH resources corresponding to the multiple SPS PDSCHs is used to transmit the HARQ-ACK;

and the single-bit transmission subunit is used for transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH if the HARQ-ACK of one SPS PDSCH needs to be transmitted at the current moment.

Based on any of the above embodiments, in the terminal, the first transmission unit 410 is further configured to:

Based on any of the above embodiments, in the terminal, the multi-bit transmission subunit is specifically configured to:

Based on any of the above embodiments, in the terminal, the first PUCCH resource is a resource in any one of PUCCH format 2, PUCCH format 3, and PUCCH format 4.

Based on any of the above embodiments, in the terminal, if the HARQ-ACK of multiple SPS PDSCHs needs to be transmitted at the current time, the method further includes:

the ordering cascade unit is used for ordering the SPS PDSCH according to the ascending order of the carrier serial number and the sequence of the transmission time;

Based on any of the above embodiments, fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention, and as shown in fig. 5, the base station includes a first receiving unit 510 and a second receiving unit 520;

the first receiving unit 510 is configured to receive, if a total amount of HARQ-ACK information of the SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK by using a first PUCCH resource;

a second receiving unit 520, configured to receive the HARQ-ACK using a second PUCCH resource corresponding to the SPS PDSCH otherwise;

The base station provided by the embodiment of the invention is used for multiplexing and transmitting the HARQ-ACK of the SPS PDSCH by using the first PUCCH resource through configuring the additional large-capacity resource, namely the first PUCCH resource, when the HARQ-ACK of the SPS PDSCH collides, so as to support the multiplexing transmission of the HARQ-ACK of the SPS PDSCH, thereby ensuring the normal feedback of the HARQ-ACK of the SPS PDSCH when the SPS PDSCH reduces the period or configures a plurality of SPS configurations, and improving the system performance.

Based on any of the above embodiments, in the base station, the second preset threshold is 1;

Based on any of the above embodiments, in the base station, the second preset threshold is greater than 1;

Based on any of the above embodiments, in the base station, the first receiving unit 510 is specifically configured to:

the second receiving unit 520 is specifically configured to:

the second receiving unit 520 includes:

a multi-bit receiving subunit, configured to receive, if HARQ-ACKs of multiple SPS PDSCHs need to be received at a current time and a total amount of HARQ-ACKs of the multiple SPS PDSCHs is less than or equal to the second preset threshold, one of second PUCCH resources corresponding to the multiple SPS PDSCHs is used to receive the HARQ-ACK;

and the single-bit receiving subunit is used for receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH if the HARQ-ACK of one SPS PDSCH needs to be received at the current moment.

Based on any of the above embodiments, in the base station, the first receiving unit 510 is further configured to:

Based on any of the embodiments above, in the base station, the multi-bit receiving subunit is specifically configured to:

Based on any of the above embodiments, in the base station, the first PUCCH resource is a resource in any one of PUCCH format 2, PUCCH format 3, and PUCCH format 4.

Based on any of the above embodiments, in the base station, if the current time needs to receive HARQ-ACKs of multiple SPS PDSCHs, the method further includes:

the sequencing positioning unit is used for sequencing the SPS PDSCH according to the sequence of ascending carrier serial numbers and the sequence of transmission time;

Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device may include: a processor (processor)601, a communication Interface (Communications Interface)602, a memory (memory)603 and a communication bus 604, wherein the processor 601, the communication Interface 602 and the memory 603 complete communication with each other through the communication bus 604. Processor 601 may invoke a computer program stored on memory 603 and executable on processor 601 to perform the HARQ-ACK transmission method for SPS PDSCH provided by the various embodiments described above, including, for example: if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, transmitting the HARQ-ACK by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH; the terminal corresponds to at least one first PUCCH resource used for transmitting HARQ-ACK of a plurality of SPS PDSCHs, each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

Processor 601 may also invoke a computer program stored on memory 603 and executable on processor 601 to perform the HARQ-ACK transmission method for SPS PDSCH provided by the various embodiments described above, including, for example: if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, using a first PUCCH resource to receive the HARQ-ACK; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH; the base station configures at least one first PUCCH resource for transmitting HARQ-ACK of a plurality of SPS PDSCHs to the terminal, wherein each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

In addition, the logic instructions in the memory 603 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the HARQ-ACK transmission method for SPS PDSCH provided in the foregoing embodiments, for example, the method includes: if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, transmitting the HARQ-ACK by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH; the terminal corresponds to at least one first PUCCH resource used for transmitting HARQ-ACK of a plurality of SPS PDSCHs, each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the HARQ-ACK transmission method for SPS PDSCH provided in the foregoing embodiments, for example, the method includes: if the total amount of the HARQ-ACK information of the SPS PDSCH needing to be transmitted at the current moment is larger than a second preset threshold value, using a first PUCCH resource to receive the HARQ-ACK; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH; the base station configures at least one first PUCCH resource for transmitting HARQ-ACK of a plurality of SPS PDSCHs to the terminal, wherein each SPS configuration corresponds to one second PUCCH resource, and each SPS PDSCH corresponds to one SPS configuration; the first PUCCH resource is a resource of a PUCCH format which carries bit information larger than a first preset threshold value, the second PUCCH resource is a resource of a PUCCH format which carries bit information smaller than or equal to the first preset threshold value, the first preset threshold value and the second preset threshold value are both positive integers, and the second preset threshold value is smaller than or equal to the first preset threshold value.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for HARQ-ACK transmission of SPS PDSCH, comprising:

2. The method for HARQ-ACK transmission of SPS PDSCH according to claim 1, wherein said second preset threshold is 1;

3. The method for HARQ-ACK transmission of SPS PDSCH according to claim 1, wherein said second preset threshold is greater than 1;

4. The method for transmitting HARQ-ACK of SPS PDSCH according to claim 2, wherein if the total amount of information of HARQ-ACK of SPS PDSCH required to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is transmitted by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

5. The method for transmitting HARQ-ACK of SPS PDSCH according to claim 3, wherein if the total amount of information of HARQ-ACK of SPS PDSCH required to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is transmitted by using a first PUCCH resource; otherwise, transmitting the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

6. The method of HARQ-ACK transmission of SPS PDSCH of any one of claims 1 to 5, wherein the transmitting the HARQ-ACK using the first PUCCH resource further comprises:

7. The method for HARQ-ACK transmission of SPS PDSCH according to any of claims 1 to 5, wherein the transmitting the HARQ-ACK using the first PUCCH resource comprises:

8. The method of claim 5, wherein the transmitting the HARQ-ACK using one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs comprises:

9. The method of claim 5 or 8, wherein the transmitting the HARQ-ACK using one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs specifically comprises:

10. The method for HARQ-ACK transmission of SPS PDSCH according to any one of claims 1 to 5 and 8, wherein the first PUCCH resource is a resource of any one of PUCCH format 2, PUCCH format 3 and PUCCH format 4.

11. The method for HARQ-ACK transmission of SPS PDSCH according to any one of claims 4, 5 and 8, wherein if HARQ-ACK transmission of a plurality of SPS PDSCHs is required at the current time, further comprising:

and cascading the HARQ-ACK of the SPS PDSCH according to the sequencing sequence of the SPS PDSCH to obtain the HARQ-ACK.

12. A method for HARQ-ACK transmission of SPS PDSCH, comprising:

13. The method of HARQ-ACK transmission for SPS PDSCH of claim 12, wherein said second preset threshold is 1;

14. The method of HARQ-ACK transmission for SPS PDSCH of claim 12, wherein said second preset threshold is greater than 1;

15. The method for transmitting HARQ-ACK for SPS PDSCH according to claim 13, wherein if the total amount of HARQ-ACK information for SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is received using a first PUCCH resource; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

16. The method for transmitting HARQ-ACK for SPS PDSCH according to claim 14, wherein if the total amount of HARQ-ACK information for SPS PDSCH that needs to be transmitted at the current time is greater than a second preset threshold, the HARQ-ACK is received using a first PUCCH resource; otherwise, receiving the HARQ-ACK by using a second PUCCH resource corresponding to the SPS PDSCH, which specifically includes:

17. The method of HARQ-ACK transmission for SPS PDSCH according to any of claims 12 to 16, wherein said receiving said HARQ-ACK using the first PUCCH resource further comprises:

18. The method for HARQ-ACK transmission of SPS PDSCH according to any of claims 12 to 16, wherein said receiving said HARQ-ACK using the first PUCCH resource specifically comprises:

19. The method of claim 16, wherein the receiving the HARQ-ACK using one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs comprises:

20. The method of claim 16 or 19, wherein the receiving the HARQ-ACK using one of the second PUCCH resources corresponding to the plurality of SPS PDSCHs specifically comprises:

21. The method for HARQ-ACK transmission of SPS PDSCH according to any of claims 12 to 16 or 19, wherein said first PUCCH resource is a resource of any of PUCCH format 2, PUCCH format 3 and PUCCH format 4.

22. The method for HARQ-ACK transmission of SPS PDSCH according to any of claims 15, 16, 19, wherein if the current time needs to receive HARQ-ACKs of multiple SPS PDSCH, further comprising:

and determining the HARQ-ACK of the plurality of SPS PDSCHs from the received HARQ-ACK according to the sequencing sequence of the plurality of SPS PDSCHs.

23. A terminal, comprising:

24. The terminal of claim 23, wherein the second preset threshold is 1;

25. The terminal of claim 23, wherein the second predetermined threshold is greater than 1;

26. The terminal of claim 24,

the first transmission unit is specifically configured to:

the second transmission unit is specifically configured to:

27. The terminal of claim 25,

the first transmission unit is specifically configured to:

the second transmission unit includes:

28. The terminal according to any of claims 23 to 27, wherein the first transmission unit is further configured to:

29. The terminal according to any of claims 23 to 27, wherein the first transmission unit is specifically configured to:

30. The terminal of claim 27, wherein the multi-bit transmission subunit is specifically configured to:

31. The terminal according to claim 27 or 30, wherein the multi-bit transmission subunit is specifically configured to:

32. The terminal according to any of claims 23-27 and 30, wherein the first PUCCH resource is a resource of any one of PUCCH format 2, PUCCH format 3 and PUCCH format 4.

33. The terminal according to any of claims 26, 27, 30, wherein if HARQ-ACK for multiple SPS PDSCHs needs to be transmitted at the current time, further comprising:

34. A base station comprising a receiving unit; the receiving unit includes:

35. The base station of claim 34, wherein the second predetermined threshold is 1;

36. The base station of claim 34, wherein the second predetermined threshold is greater than 1;

37. The base station of claim 35,

the first receiving unit is specifically configured to:

the second receiving unit is specifically configured to:

38. The base station of claim 36,

the first receiving unit is specifically configured to:

the second receiving unit includes:

39. The base station according to any of claims 34 to 38, wherein the first receiving unit is further configured to:

40. The base station according to any of claims 34 to 38, wherein the first receiving unit is specifically configured to:

41. The base station of claim 38, wherein the multi-bit receiving subunit is specifically configured to:

42. The base station according to claim 38 or 41, wherein the multi-bit receiving subunit is specifically configured to:

43. The base station according to any of claims 34-38 and 41, wherein the first PUCCH resource is a resource of any of PUCCH format 2, PUCCH format 3 and PUCCH format 4.

44. The base station according to any of claims 37, 38 or 41, wherein if the current time needs to receive HARQ-ACK of a plurality of SPS PDSCHs, further comprising:

45. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor when executing the program realizes the steps of the method for HARQ-ACK transmission of SPS PDSCH according to any of claims 1 to 22.

46. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of the method for HARQ-ACK transmission of SPS PDSCH according to any of claims 1 to 22.