WO2020147457A1

WO2020147457A1 - Method and device for determining harq-ack codebook and harq-ack information

Info

Publication number: WO2020147457A1
Application number: PCT/CN2019/124073
Authority: WO
Inventors: 余万涛; 谢振华; 游世林; 彭锦
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-01-18
Filing date: 2019-12-09
Publication date: 2020-07-23
Also published as: CN111464324A

Abstract

The present application provides a method and device for determining an HARQ-ACK codebook and HARQ-ACK information. The method for determining an HARQ-ACK codebook comprises: providing a plurality physical downlink shared channel (PDSCH) candidate resources, in which time domain overlapping exists in a downlink slot, to a same candidate resource group, and determining HARQ-ACK information corresponding to the candidate resource group; and determining, according to a preset rule, a corresponding downlink subslot for the HARQ-ACK information and determining a semi-static HARQ-ACK codebook. The present application can resolve the problem of being unable to determine a semi-static HARQ-ACK codebook during subslot crossing of PDSCH candidate resources, thereby implementing the effect of satisfying HARQ-ACK requirements of the subslot crossing of the PDSCH candidate resources.

Description

HARQ-ACK codebook, information determination method and device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910049372.6, and the title of the invention "HARQ-ACK codebook, information determination method and device" on January 18, 2019, the entire content of which is incorporated by reference In this application.

Technical field

This application relates to the field of communications, and in particular, to a HARQ-ACK codebook and a method and device for determining information.

Background technique

In the research of NR R16, in order to support the transmission of ultra-reliable, low-latency communication (URLLC) services, reduce the downlink transmission and downlink physical downlink shared channel (Physical Downlink Shared Channel, referred to as PDSCH) corresponding to the hybrid automatic repeat request response (Hybrid Automatic Repeat) Request-Acknowledge, HARQ-ACK for short) is transmitted in time. Some companies propose to transmit PUCCH of HARQ-ACK multiple times in an uplink time slot, which can reduce the transmission delay of HARQ-ACK.

Further, in order to support the above functions, the solution given is to divide a slot into multiple subslots, so that both the uplink slot and the downlink slot are correspondingly divided into multiple subslots, and then the subslot is regarded as slot, reuse the existing slot-based method to determine the HARQ-ACK timing position and PUCCH resources.

However, when the downlink slot is also correspondingly divided into subslots, the existing PDSCH candidate resource allocation is determined based on the slot method. If the existing PDSCH candidate resource allocation is reused, then one or more PDSCH The PDSCH allocated by the candidate resource may have a cross-subslot situation. Then, how to deal with the situation where there is a PDSCH candidate resource across the subslot, especially how to determine the semi-static HARQ-ACK codebook. However, no technical solution is given in the related art.

Summary of the invention

The embodiments of the present application provide a HARQ-ACK codebook and a method and device for determining information, so as to at least solve the problem that the semi-static HARQ-ACK codebook cannot be determined when PDSCH candidate resources in related technologies cross subslots.

According to an embodiment of the present application, a method for determining a HARQ-ACK codebook is provided, including: setting multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in a downlink time slot slot in the same candidate resource group And determine the HARQ-ACK information corresponding to the candidate resource group; according to preset rules, determine the corresponding downlink sub-slot subslot for the HARQ-ACK information and determine the semi-static HARQ-ACK codebook.

Optionally, determining the HARQ-ACK information corresponding to the candidate resource group includes: for the candidate resource group in the downlink subslot, determining the corresponding resource group corresponding to the candidate resource group according to the PDSCH candidate resource with the earliest end position in the candidate resource group The position of HARQ-ACK information in the above sublot.

Optionally, the location of the HARQ-ACK information corresponding to the PDSCH candidate resource in the downlink subslot in the downlink subslot includes: determining the HARQ-ACK information corresponding to the PDSCH candidate resource in the downlink subslot according to the end position order of the PDSCH candidate resource in The position in the above sublot.

Optionally, the preset rule includes: the downlink subslot where the end position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the start position in the candidate resource group The downlink subslot where the starting position of the latest PDSCH candidate resource is located is used as the downlink subslot corresponding to the HARQ-ACK information.

Optionally, the preset rule further includes: the downlink subslot where the end position of the PDSCH candidate resource with the latest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the candidate resource group starts The downlink subslot where the end position of the PDSCH candidate resource with the earliest start position is located as the downlink subslot corresponding to the HARQ-ACK information; or, the downlink subslot where the end position of the PDSCH candidate resource with the latest start position in the candidate resource group is located as the above The downlink subslot corresponding to the HARQ-ACK information.

Optionally, the preset rule further includes: the downlink subslot where the starting position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the end in the candidate resource group The downlink subslot where the starting position of the latest PDSCH candidate resource is located is used as the downlink subslot corresponding to the HARQ-ACK information; or, the downlink subslot where the starting position of the PDSCH candidate resource with the earliest starting position in the candidate resource group is located is used as The downlink subslot corresponding to the HARQ-ACK information.

Optionally, determining the semi-static HARQ-ACK codebook includes: calculating the HARQ-ACK information corresponding to the candidate resource group into the downlink subslot, and determining the HARQ-ACK information corresponding to the candidate resource group in the order of the downlink subslot Position in the above semi-static HARQ-ACK codebook.

Optionally, setting multiple PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group includes: determining the PDSCH candidate resource with the earliest ending position in the above slot or the above downlink subslot; ending position The earliest PDSCH candidate resource and the PDSCH candidate resource overlapping with the PDSCH candidate resource in the time domain are divided into one candidate resource group.

Optionally, the above method further includes: determining the PDSCH candidate resource with the earliest end position among the PDSCH candidate resources other than the candidate resource group in the slot or the downlink subslot; and the PDSCH candidate resource with the earliest end position And the PDSCH candidate resources that overlap with its existing time domain are divided into new candidate resource groups until all PDSCH candidate resources in the above-mentioned slot or in the above-mentioned downlink subslot are divided into candidate resource groups.

Optionally, when the aforementioned downlink subslot is empty, NACK information is filled into the aforementioned semi-static HARQ-ACK codebook, or 0-bit HARQ-ACK information is determined in the aforementioned downlink subslot.

Optionally, it is determined that the downlink subslot is empty in one of the following ways: it is determined that the PDSCH candidate resource or the candidate resource group does not exist in the downlink subslot, and the PDSCH candidate is not counted in the downlink subslot The resource or the candidate resource group; it is determined that the PDSCH candidate resource or the candidate resource group exists in the downlink subslot, but it is prohibited to be counted in the downlink subslot, and at the same time, there is no counted in the downlink subslot. The aforementioned PDSCH candidate resource or the aforementioned candidate resource group.

Optionally, determining that the PDSCH candidate resource or the candidate resource group exists in the downlink subslot includes: determining a symbol corresponding to the end position of the PDSCH candidate resource in the downlink subslot, and/or determining the downlink subslot There is a symbol corresponding to the starting position of the PDSCH candidate resource.

Optionally, the downlink subslot is determined to be non-empty in one of the following ways: the candidate resource group counted in the downlink subslot: or, the PDSCH candidate resource or the candidate resource group in the downlink subslot, and , The above-mentioned PDSCH candidate resources or the above-mentioned candidate resource groups are not counted in other subslots.

Optionally, the above method further includes: when the candidate resource groups of other downlink subslots are counted in the downlink subslot, the HARQ-ACK information corresponding to the counted candidate resource groups in the downlink subslot is determined, and the HARQ- The position of ACK information in the semi-static HARQ-ACK codebook.

According to another embodiment of the present application, there is provided a method for determining HARQ-ACK information of a hybrid automatic repeat request, which is characterized by comprising: determining in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook Physical downlink shared channel PDSCH candidate resources; according to the PDSCH candidate resources in the downlink subslot, the number of HARQ-ACK information in the downlink subslot is determined according to the number of non-time-domain overlapping maximum transmission PDSCH candidate resources in the downlink subslot; The sum of the number of HARQ-ACK information in the downlink subslot is used as the number of the semi-static HARQ-ACK codebook.

Optionally, determining the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook includes: a symbol corresponding to the end position of the PDSCH candidate resource existing in the downlink subslot And/or a symbol corresponding to the starting position of the PDSCH candidate resource existing in the downlink subslot determines the PDSCH candidate resource.

Optionally, according to the PDSCH candidate resources in the downlink subslot, the number of HARQ-ACK information in the downlink subslot is determined according to the number of non-time-domain overlapping maximum transmission PDSCH candidate resources in the downlink subslot, including: The PDSCH candidate resource with the earliest end position is determined in the middle or the downlink subslot; the PDSCH candidate resource with the earliest end position and the PDSCH candidate resource overlapping with its existing time domain are classified into one candidate resource group; according to the number of the candidate resource groups, The number of HARQ-ACK information in the downlink subslot is determined, where the candidate resource group corresponds to one or more HARQ-ACK information.

According to another embodiment of the present application, there is provided an apparatus for determining HARQ-ACK information of a hybrid automatic repeat request, which is characterized in that it includes: a second determining module, configured to determine the data corresponding to the semi-static HARQ-ACK codebook The physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot; the third determining module is configured to transmit the PDSCH candidate resource according to the maximum number of non-time-domain overlapping PDSCH candidate resources in the downlink subslot according to the above PDSCH candidate resource in the downlink subslot The quantity of HARQ-ACK information in the downlink subslot is determined; the fourth determining module is configured to use the sum of the quantity of HARQ-ACK information in the downlink subslot as the quantity of the semi-static HARQ-ACK codebook.

According to another embodiment of the present application, there is also provided a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the above method embodiments when running.

According to yet another embodiment of the present application, there is also provided an electronic device, including a memory and a processor, the memory stores a computer program, the processor is configured to run the computer program to execute any of the above method embodiments Steps.

Through this application, the problem that the semi-static HARQ-ACK codebook cannot be determined when the PDSCH candidate resources cross subslots can be solved, and the effect of meeting the HARQ-ACK requirements of the PDSCH candidate resources across subslots is achieved.

BRIEF DESCRIPTION

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the drawings:

FIG. 1 is a flowchart of a HARQ-ACK codebook according to an embodiment of the present application;

2 is a schematic diagram of a determined time slot of a HARQ-ACK codebook according to an embodiment of the present application;

3 is a schematic diagram of another HARQ-ACK codebook determined time slot according to an embodiment of the present application;

4 is a flowchart of determining HARQ-ACK information according to an embodiment of the present application;

Fig. 5 is a structural block diagram of a HARQ-ACK codebook determination device according to an embodiment of the present application;

6 is a structural block diagram of a device for determining HARQ-ACK information according to an embodiment of the present application.

detailed description

Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other if there is no conflict.

It should be noted that the terms “first” and “second” in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

Example 1

In this embodiment, a method for determining a HARQ-ACK codebook is provided. FIG. 1 is a flowchart of a HARQ-ACK codebook according to an embodiment of the present application. As shown in FIG. 1, the process includes the following steps:

Step S102: Set multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group, and determine the HARQ-ACK information corresponding to the candidate resource group;

Step S104: Determine the downlink subslot subslot corresponding to the HARQ-ACK information according to a preset rule, and generate a semi-static HARQ-ACK codebook.

Here, the corresponding downlink sub-slot may be determined for the candidate resource group according to a preset rule, and then the HARQ-ACK information of the candidate resource group may be determined. The final result of the two is the same. The former first determines the HARQ-ACK information of the candidate resource group, then counts the HARQ-ACK information into the determined sub-slots, and finally determines the semi-static HARQ-ACK codebook; the latter is The sub-slots corresponding to the candidate resource group are determined first, and then the HARQ-ACK information of the candidate resource group is determined. The sub-slot corresponding to the candidate resource group is also the sub-slot to be included in the HARQ-ACK information of the candidate resource group. The HARQ-ACK information of the final candidate resource group is all counted into the corresponding sub-slots, and the semi-static HARQ-ACK codebook is finally determined. Optionally, determining the HARQ-ACK information corresponding to the candidate resource group includes: determining the position of the HARQ-ACK information corresponding to each PDSCH candidate resource in the sublot in the order of the end positions of the PDSCH candidate resources in the downlink subslot; wherein, when the downlink When the candidate resource group is included in the subslot, the location of the HARQ-ACK information in the sublot is determined according to the PDSCH with the earliest end position in the candidate resource group.

Optionally, determining the HARQ-ACK information corresponding to the candidate resource group includes: for the candidate resource group in the downlink subslot, the HARQ-ACK information corresponding to the candidate resource group is determined according to the PDSCH candidate resource with the earliest end position in the candidate resource group. position in sublot;

Optionally, the position of the HARQ-ACK information corresponding to the PDSCH candidate resource in the downlink subslot in the downlink subslot includes: determining the HARQ-ACK information corresponding to the PDSCH candidate resource in the sublot in the order of the end position of the PDSCH candidate resource in the downlink subslot position.

Specifically, here is given that in each subslot, if there are multiple PDSCHs (including the original candidate resource groups in the subslot and the candidate resource groups counted), each PDSCH is determined according to the order of the end positions of the PDSCH The location of the HARQ-ACK in the subslot's HARQ-ACK information. For the location of the HARQ-ACK information of a candidate resource group in the subslot, it is determined according to the earliest PDSCH ending in the candidate resource group.

Optionally, the preset rule includes: the downlink subslot where the end position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the PDSCH with the latest start position in the candidate resource group The downlink subslot where the starting position of the candidate resource is located serves as the downlink subslot corresponding to the HARQ-ACK information.

Optionally, the preset rule further includes: the downlink subslot where the end position of the PDSCH candidate resource with the latest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the earliest start position in the candidate resource group The downlink subslot where the end position of the PDSCH candidate resource is located serves as the downlink subslot corresponding to the HARQ-ACK information; or, the downlink subslot where the end position of the PDSCH candidate resource with the latest starting position in the candidate resource group serves as the downlink corresponding to the HARQ-ACK information subslot.

Optionally, the preset rule further includes: the downlink subslot of the start position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information; or, the latest end position in the candidate resource group The downlink subslot where the starting position of the PDSCH candidate resource is located is used as the downlink subslot corresponding to the HARQ-ACK information; or, the downlink subslot where the starting position of the PDSCH candidate resource with the earliest starting position in the candidate resource group is located is used as the downlink subslot corresponding to the HARQ-ACK information Downstream subslot.

Optionally, determining the semi-static HARQ-ACK codebook includes: calculating the HARQ-ACK information corresponding to the candidate resource group into the downlink subslot, and determining that the HARQ-ACK information corresponding to the candidate resource group is semi-static according to the order of the downlink subslot The position in the HARQ-ACK codebook.

For example, when a semi-static HARQ-ACK codebook corresponds to multiple subslots, it is necessary to determine the position of the HARQ-ACK information in each subslot in the semi-static HARQ-ACK codebook according to the subslots. For example, the position of the HARQ-ACK information in each subslot in the semi-static HARQ-ACK codebook is determined according to the order of the subslots.

Optionally, multiple PDSCH candidate resources with overlapping time domains in the downlink time slot are set in the same candidate resource group, including: determining the PDSCH candidate resource with the earliest end position in the slot or downlink subslot; The PDSCH candidate resource and the PDSCH candidate resource overlapping with its existing time domain are classified as a candidate resource group.

Optionally, the method further includes: determining the PDSCH candidate resource with the earliest end position among the PDSCH candidate resources other than the candidate resource group in the slot or the downlink subslot; the PDSCH candidate resource with the earliest end position and its time domain overlap The PDSCH candidate resources are divided into new candidate resource groups until all PDSCH candidate resources in the slot or downlink subslot are divided into candidate resource groups.

Obviously, when the PDSCH candidate resource with the earliest end position has no PDSCH candidate resource overlapping with its existing time domain, the candidate resource group includes only the PDSCH candidate resource with the earliest end position. The time domain overlap here includes full time domain overlap and partial time domain overlap.

Optionally, when the downlink subslot is empty, the NACK information is filled into the semi-static HARQ-ACK codebook, or the 0-bit HARQ-ACK information is determined in the downlink subslot.

Optionally, it is determined that the downlink subslot is empty by one of the following methods: it is determined that there is no PDSCH candidate resource or candidate resource group in the downlink subslot, and there is no PDSCH candidate resource or candidate resource group that is counted in the downlink subslot; It is determined that there are PDSCH candidate resources or candidate resource groups in the downlink subslot, but they are all prohibited from being included in the downlink subslot. At the same time, there are no PDSCH candidate resources or candidate resource groups that are included in the downlink subslot.

Optionally, determining that there is a PDSCH candidate resource or candidate resource group in the downlink subslot includes: determining a symbol corresponding to the end position of the PDSCH candidate resource in the downlink subslot, and/or determining that there is a PDSCH candidate resource in the downlink subslot The symbol corresponding to the starting position.

Optionally, the downlink subslot is determined to be non-empty in one of the following ways: the candidate resource group counted in the downlink subslot: or, the PDSCH candidate resource or candidate resource group exists in the downlink subslot, and at the same time, the PDSCH candidate resource or candidate The resource group is not included in other subslots.

Optionally, the method further includes: when the candidate resource groups of other downlink subslots are included in the downlink subslot, determine the HARQ-ACK information corresponding to the included candidate resource groups in the downlink subslot, and determine that the HARQ-ACK information is semi-static The position in the HARQ-ACK codebook.

If there is no original PDSCH candidate resource in subslot1 and no original PDSCH candidate resource group (including the PDSCH candidate resource group that is not included in the subslot1 according to the preset rule), in this way, there is no need to generate HARQ for subslot1 -ACK, or pad NACK; if there are original PDSCH candidate resources or original PDSCH candidate resource groups in subslot2, but these original PDSCH candidate resources or original PDSCH candidate resource groups are counted according to the preset rules In other subslots (and no other PDSCH candidate resources or PDSCH candidate resource groups are counted into subslot2 according to the preset rules), resulting in that there are no PDSCH candidate resources or PDSCH candidate resource groups that need to generate HARQ-ACK information in subslot2, then There is also no need to generate HARQ-ACK or fill NACK for the subslot2. Does a PDSCH candidate resource belong to a subslot? It is determined according to the subslot where the start symbol or end symbol of the PDSCH candidate resource is located. For example, if the end symbol of a PDSCH1 candidate resource is in subslot3, then the PDSCH1 candidate resource belongs to subslot3. For a PDSCH candidate resource, the subslot can also be determined according to the candidate resource group. At this time, a candidate resource group is considered to contain a PDSCH candidate resource, and then the corresponding subslot is determined according to a preset rule. In other scenarios, similar processing is sufficient. In fact, generally for the start position and end position of a PDSCH candidate resource in one subslot, then the PDSCH candidate resource belongs to the subslot, and there is no need to re-determine the subslot. For those whose start position and end position are not in the same subslot For PDSCH candidate resources, the subslot to which they belong can be determined in the above manner. Generally, for a PDSCH candidate resource group, the start position and end position of all PDSCH candidate resources in the group are in a subslot, then the PDSCH candidate resource group also belongs to the subslot. For a PDSCH candidate resource group, if the start position and end position of at least one PDSCH candidate resource in the group are not in a subslot, then the PDSCH candidate resource group needs to determine the corresponding subslot according to the preset rules to facilitate the determination of the corresponding HARQ- The position of the ACK information in the HARQ-ACK codebook. It should be noted that the meaning of "original" described above is that it is configured for the UE through RRC signaling. FIG. 2 is a schematic diagram of a determined time slot of a HARQ-ACK codebook according to an embodiment of the present application. As shown in Figure 2: In Figure 2, it is assumed that a slot is divided into 4 subslots. At this time, the value unit of the parameter k1 of HARQ-ACK timing is subslot. Assume that the set of k1 values configured by the base station for the UE is {1,2,3,4}. Figure 2 can be applied to frequency division duplex (Frequency, Division Duplexing, FDD) can also be applied to time division duplex (Timing, Division Duplexing, TDD). Assuming that a semi-static HARQ-ACK codebook of the UE is transmitted in the first subslot in the uplink in FIG. 2 (denoted as subslot), then the UE calculates according to the value of k1, and the previous subslot n-k1 is the HARQ-ACK The downlink subslot corresponding to the codebook. That is, the four downlink subslots in FIG. 2 are the downlink subslots corresponding to the semi-static HARQ-ACK codebook in the subslot.

In FIG. 2, in the downlink slot, five PDSCH candidate resources are configured, and the positions are as shown in the figure. Among them, three PDSCH candidate resources overlap in time domain. For these PDSCH candidate resources, the corresponding subslot is counted according to the subslot where the end symbol of the PDSCH candidate resource is located (this determines the corresponding subslot for the PDSCH that does not overlap in the time domain). In this way, no PDSCH candidate resources are actually allocated in the first subslot, there is a PDSCH candidate resource in the second subslot, there are 2 PDSCH candidate resources in the third subslot, and 2 PDSCH candidates in the fourth subslot Resources.

In Figure 2, when determining the semi-static HARQ-ACK codebook, first find the PDSCH candidate resource with the earliest end time from the PDSCH in slot/subslot, and then divide the PDSCH overlapping its time domain into a group. If there are PDSCH candidate resources with overlapping domains, then a separate group will form a HARQ-ACK message for a group of PDSCH candidate resources in the future. Then, the remaining PDSCH candidate resources are sequentially performed the above operations until all the PDSCH candidate resources are divided into corresponding groups. According to the above rules, the first PDSCH candidate resource in FIG. 2 is a group, and is recorded as the first group (here, the first group has only one PDSCH candidate resource, and generally becomes a PDSCH candidate resource with non-time domain overlap. For non-time domain overlap, The PDSCH candidate resources are generally a separate group), the second, third, and fourth PDSCH candidate resources are a group and are denoted as the second group, and the fifth PDSCH candidate resource is a group and is denoted as the third group.

Specifically, for the preset rules described above, the following scenarios are also provided in this embodiment to understand the technical solutions described above:

scene 1:

The preset rule is: the downlink subslot where the end position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In FIG. 2, the HARQ-ACK of the first group of PDSCH candidate resources corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the third subslot. The HARQ-ACK of the third group of PDSCH candidate resources corresponds to the fourth subslot. In this case, if a group of PDSCH candidate resources generates one HARQ-ACK message, then one HARQ-ACK message is generated in the second downlink subslot, and one HARQ-ACK message is generated in the third downlink subslot. One HARQ-ACK message is generated in each downlink subslot.

In FIG. 2, for the first downlink subslot, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there is a value of k1=4, it is also regarded as corresponding to the semi-static HARQ-ACK codebook In the downlink subslot, since there is no corresponding PDSCH candidate resource or candidate resource group, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first downlink subslot) because there is no corresponding PDSCH candidate resource in it, or because there is no candidate resource group HARQ-ACK included in it, so in the semi-static HARQ-ACK When removing this subslot from the subslot that generates HARQ-ACK information in the codebook (that is, no corresponding HARQ-ACK is generated for this subslot), the HARQ-ACK overhead can be reduced in the above manner. Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 1 is in turn: one HARQ-ACK information of the second downlink subslot, one HARQ-ACK information of the third downlink subslot, A HARQ-ACK message for the fourth downlink subslot.

It needs to be uniformly pointed out that in scenario 1 and the scenarios described below, there is a one-to-one correspondence between one HARQ-ACK information and one candidate resource group. There may be only one PDSCH candidate resource in each candidate resource group (in the case of non-time-domain overlap). The HARQ-ACK information of the candidate resource group is counted into one of the subslots, so as to determine the size and HARQ-ACK bit position of the semi-static HARQ-ACK codebook in different uplink subslots.

Relative to FIG. 2, if the k1 set takes the value {3, 4}, and the UE feeds back HARQ-ACK twice in one uplink slot, FIG. 3 is another HARQ-ACK codebook determination according to an embodiment of the present application Schematic diagram of the time slot. As shown in FIG. 3, the HARQ-ACK information included in the first semi-static HARQ-ACK codebook (that is, HARQ-ACK1 in FIG. 3) is in turn: one HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (ie, HARQ-ACK2 in Figure 3) is: 1 HARQ-ACK information in the third downlink subslot, and 1 in the fourth downlink subslot. HARQ-ACK information.

Scene 2:

The preset rule is: the downlink subslot where the starting position of the PDSCH candidate resource with the latest starting position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In FIG. 2, the HARQ-ACK of the first group of PDSCH corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the third subslot. The HARQ-ACK of the third group of PDSCH candidate resources corresponds to the fourth subslot. In this case, if a group of PDSCH candidate resources generates one HARQ-ACK message, then one HARQ-ACK message is generated in the second downlink subslot, and one HARQ-ACK message is generated in the third downlink subslot. One HARQ-ACK message is generated in each downlink subslot.

In FIG. 2, for the first downlink subslot, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there is a value of k1=4, it is also regarded as corresponding to the semi-static HARQ-ACK codebook In the downlink subslot, since there is no corresponding PDSCH or candidate resource group at this time, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is for this kind of subslot (the first downlink subslot) because there is no corresponding PDSCH in it, or because there is no HARQ-ACK of the candidate resource group included, so in the semi-static HARQ-ACK codebook When this subslot is removed from the subslot that generates HARQ-ACK information (that is, the corresponding HARQ-ACK is not generated for this subslot), the HARQ-ACK overhead can be reduced by the above method.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 2 is in turn: one HARQ-ACK information of the second downlink subslot, one HARQ-ACK information of the third downlink subslot, A HARQ-ACK message for the fourth downlink subslot.

Compared with FIG. 2, if the k1 set takes the value {3,4}, and the UE feeds back HARQ-ACK twice in one uplink slot, as shown in FIG. 3, at this time, the first semi-static HARQ-ACK codebook (That is, HARQ-ACK1 in FIG. 3) The included HARQ-ACK information is in turn: one HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (ie, HARQ-ACK2 in Figure 3) is: 1 HARQ-ACK information in the third downlink subslot, and 1 in the fourth downlink subslot. HARQ-ACK information.

Scene 3:

The preset rule is: the downlink subslot where the end position of the PDSCH candidate resource with the latest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In Figure 2 the HARQ-ACK of the first group of PDSCH candidate resources corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the fourth subslot; the HARQ-ACK of the third group of PDSCH resources corresponds to the second subslot. Four subslots. There are two groups of PDSCH candidate resources in the fourth subslot, and they do not overlap in time domain. In this way, if a group of PDSCH candidate resources generates one HARQ-ACK message, then one HARQ-ACK message is generated in the second downlink subslot, and two HARQ-ACK messages are generated in the fourth downlink subslot.

In Figure 2, for the first and third downlink subslots, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there are values of k1=4 and k1=2, they are also regarded as the half In the downlink subslot corresponding to the static HARQ-ACK codebook, since there is no corresponding PDSCH candidate resource or candidate resource group at this time, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first and third downlink subslots) because there is no corresponding PDSCH in it, or because there is no HARQ-ACK of the candidate resource group included in it, so in the semi-static HARQ -The ACK codebook removes such subslots from the subslots that generate HARQ-ACK information (ie, does not generate corresponding HARQ-ACKs for such subslots), which can reduce HARQ-ACK overhead.

The third subslot is described here: In the third subslot, there are allocated PDSCH candidate resources, but because the PDSCH candidate resource and other PDSCH candidate resources sometimes overlap in domain, the PDSCH candidate resource is included in a candidate resource group , And because the HARQ-ACK of the PDSCH candidate resources of the group is included in the fourth subslot according to the rules, the PDSCH in the final third subslot is allocated, but the HARQ-ACK of the PDSCH candidate resource It is included in other subslots, so the third subslot does not need to feed back HARQ-ACK in the semi-static HARQ-ACK codebook.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 3 is in turn: one HARQ-ACK information of the second downlink subslot, and two HARQ-ACK information of the fourth downlink subslot .

Compared with FIG. 2, if the k1 set takes the value {3,4}, and the UE feeds back HARQ-ACK twice in one uplink slot, as shown in FIG. 3, at this time, the first semi-static HARQ-ACK codebook (That is, HARQ-ACK1 in FIG. 3) The included HARQ-ACK information is in turn: one HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (that is, HARQ-ACK2 in FIG. 3) is in turn: 2 HARQ-ACK information in the fourth downlink subslot.

Scene 4

The preset rule: the downlink subslot of the end position of the PDSCH candidate resource with the earliest start position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In FIG. 2, the HARQ-ACK of the first group of PDSCH candidate resources corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the third subslot. The HARQ-ACK of the third group of PDSCH candidate resources corresponds to the fourth subslot. In this way, if a group of PDSCH candidate resources generates one HARQ-ACK message, then one HARQ-ACK message is generated in the second downlink subslot, one HARQ-ACK message is generated in the third downlink subslot, and one in the fourth downlink subslot 1 HARQ-ACK message is generated.

In FIG. 2, for the first downlink subslot, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there is a value of k1=4, it is also regarded as corresponding to the semi-static HARQ-ACK codebook In the downlink subslot, since there is no corresponding PDSCH or candidate resource group, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is for this kind of subslot (the first downlink subslot) because there is no corresponding PDSCH in it, or because there is no HARQ-ACK of the candidate resource group included, so in the semi-static HARQ-ACK codebook When this subslot is removed from the subslot that generates HARQ-ACK information (that is, the corresponding HARQ-ACK is not generated for this subslot), the HARQ-ACK overhead can be reduced by the above method.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 4 is: one HARQ-ACK information for the second downlink subslot, and one HARQ-ACK information for the third downlink subslot, One HARQ-ACK information of the fourth downlink subslot.

Scene 5

The preset rule: the downlink subslot of the end position of the PDSCH candidate resource with the latest start position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In Fig. 2, the HARQ-ACK of the first group of PDSCH candidate resources corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the fourth subslot; the HARQ-ACK of the third group of PDSCH candidate resources corresponds to To the fourth subslot. There are two groups of PDSCH candidate resources in the fourth subslot, and they do not overlap in time domain. In this way, if a group of PDSCHs generates one HARQ-ACK message, then one HARQ-ACK message is generated in the second downlink subslot, and two HARQ-ACK messages are generated in the fourth downlink subslot.

In Figure 2, for the first and third downlink subslots, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there are values of k1=4 and k1=2, they are also regarded as the half In the downlink subslot corresponding to the static HARQ-ACK codebook, since there is no corresponding PDSCH or candidate resource group at this time, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first and third downlink subslots) because there is no corresponding PDSCH in it, or because there is no HARQ-ACK of the candidate resource group included in it, so in the semi-static HARQ -The ACK codebook removes such subslots from the subslots that generate HARQ-ACK information (ie, does not generate corresponding HARQ-ACKs for such subslots). Through the above method, the HARQ-ACK overhead can be reduced.

The third subslot is described here: In the third subslot, there are allocated PDSCH candidate resources, but because the PDSCH and other PDSCH sometimes overlap in domain, the PDSCH candidate resource is included in a candidate resource group, and because The HARQ-ACK of the PDSCH candidate resources of this group is counted into the fourth subslot according to the rules, so that although the PDSCH candidate resource is allocated in the final third subslot, the HARQ-ACK of the PDSCH candidate resource is counted Into the other subslot, so the third subslot does not need to feedback HARQ-ACK in the semi-static HARQ-ACK codebook.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 5 is: one HARQ-ACK information for the second downlink subslot, and two HARQ-ACK information for the fourth downlink subslot .

Compared with FIG. 2, if the k1 set takes the value {3,4}, and the UE feeds back HARQ-ACK twice in one uplink slot, as shown in FIG. 3, at this time, the first semi-static HARQ-ACK code The HARQ-ACK information contained in this (that is, HARQ-ACK1 in FIG. 3) is in turn: one HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (that is, HARQ-ACK2 in FIG. 3) is in turn: 2 HARQ-ACK information in the fourth downlink subslot.

Scene 6

Preset rule: the downlink subslot where the starting position of the PDSCH candidate resource with the earliest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information

In FIG. 2, for the first downlink subslot, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there is a value of k1=4, it is also regarded as corresponding to the semi-static HARQ-ACK codebook In the downlink subslot, since there is no corresponding PDSCH candidate resource or candidate resource group, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first downlink subslot) because there is no corresponding PDSCH in it, or because no HARQ-ACK of the candidate resource group is included in it, so in the semi-static HARQ-ACK codebook This subslot is removed from the subslot that generates HARQ-ACK information (that is, no corresponding HARQ-ACK is generated for this subslot), which can reduce the HARQ-ACK overhead.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in Scenario 6 is as follows: one HARQ-ACK information of the second downlink subslot, one HARQ-ACK information of the third downlink subslot, and the fourth HARQ-ACK information of a downlink subslot.

Compared with FIG. 2, if the k1 set takes the value {3,4}, and the UE feeds back HARQ-ACK twice in one uplink slot, as shown in FIG. 3, at this time, the first semi-static HARQ-ACK codebook (That is, HARQ-ACK1 in FIG. 3) The included HARQ-ACK information is in turn: one HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (that is, HARQ-ACK2 in FIG. 3) is as follows: 1 HARQ-ACK information in the 3rd downlink subslot, 1 in the 4th downlink subslot HARQ-ACK information.

Scene 7:

The preset rule: the downlink subslot of the start position of the PDSCH candidate resource with the latest end position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information.

In FIG. 2, for the first downlink subslot, when the semi-static HARQ-ACK codebook is in the first uplink subslot, since there is a value of k1=4, it is also regarded as corresponding to the semi-static HARQ-ACK codebook In the downlink subslot, since there is no corresponding PDSCH candidate resource or candidate resource group, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first downlink subslot) because there is no corresponding PDSCH candidate resource in it, or because there is no candidate resource group HARQ-ACK included in it, so in the semi-static HARQ-ACK When removing this subslot from the subslot that generates HARQ-ACK information in the codebook (that is, no corresponding HARQ-ACK is generated for this subslot), the HARQ-ACK overhead can be reduced by the above method.

Through the above method, the semi-static HARQ-ACK codebook generated in scenario 7 contains HARQ-ACK information in this order: one HARQ-ACK information for the second downlink subslot, one HARQ-ACK information for the third downlink subslot, and One HARQ-ACK message for 4 downlink subslots.

Scene 8:

Preset rule: the downlink subslot where the starting position of the PDSCH candidate resource with the earliest starting position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information

In FIG. 2, the HARQ-ACK of the first group of PDSCH candidate resources corresponds to the second subslot; the HARQ-ACK of the second group of PDSCH candidate resources corresponds to the second subslot. The HARQ-ACK of the third group of PDSCH candidate resources corresponds to the fourth subslot. In this way, if a group of PDSCH candidate resources generates one HARQ-ACK message, then two HARQ-ACK messages are generated in the second downlink subslot, and one HARQ-ACK message is generated in the fourth downlink subslot.

In Figure 2, for the first and third downstream subslots, when the semi-static HARQ-ACK codebook is in the first upstream subslot, since there are values of k1=4 and k1=2, it is also considered as the half In the downlink subslot corresponding to the static HARQ-ACK codebook, since there is no corresponding PDSCH candidate resource or candidate resource group at this time, NACK can be generated and filled in the semi-static HARQ-ACK codebook. But the best solution is that for this subslot (the first and third downlink subslots) because there is no corresponding PDSCH candidate resource in it, or because there is no candidate resource group HARQ-ACK included in it, In the static HARQ-ACK codebook, such subslots are removed from the subslots that generate HARQ-ACK information (that is, no corresponding HARQ-ACKs are generated for such subslots). Through the above method, the HARQ-ACK overhead can be reduced.

The third subslot is described here: In the third subslot, there are allocated PDSCH candidate resources, but because the PDSCH candidate resource and other PDSCH candidate resources sometimes overlap in domain, the PDSCH candidate resource is included in a candidate resource group , And because the HARQ-ACK of the PDSCH candidate resources of the group is included in the second subslot according to the rules, the PDSCH candidate resource in the final third subslot is allocated, but the HARQ-ACK of the PDSCH candidate resource -ACK is included in other subslots, so the third subslot does not need to feed back HARQ-ACK in the semi-static HARQ-ACK codebook.

Through the above method, the HARQ-ACK information contained in the semi-static HARQ-ACK codebook generated in scenario 8 is in turn: two HARQ-ACK information of the second downlink subslot, and one HARQ-ACK information of the fourth downlink subslot .

Relative to FIG. 2, if the k1 set takes the value {3,4}, and the UE feeds back HARQ-ACK twice in one uplink slot, as shown in FIG. 3, at this time, under mode 7, the first semi-static HARQ -The HARQ-ACK information included in the ACK codebook (that is, HARQ-ACK1 in FIG. 3) is in turn: two HARQ-ACK information in the second downlink subslot. The HARQ-ACK information contained in the second semi-static HARQ-ACK codebook (that is, HARQ-ACK2 in FIG. 3) is in turn: 1 HARQ-ACK information in the fourth downlink subslot.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of the various embodiments of the present application.

Example 2

In this embodiment, a method for determining HARQ-ACK information is provided. FIG. 4 is a flowchart of determining HARQ-ACK information according to an embodiment of the present application. As shown in FIG. 4, the process includes the following steps:

Step S402: Determine the physical downlink shared channel PDSCH candidate resource source in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook;

Step S404: Determine the number of HARQ-ACK information in the downlink subslot according to the number of PDSCH candidate resources in the downlink subslot according to the maximum number of PDSCH candidate resources that overlap in the non-time domain in the downlink subslot;

Step S406, the sum of the number of HARQ-ACK information in the downlink subslot is used as the number of semi-static HARQ-ACK codebooks.

Optionally, determining the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook includes: according to the symbol corresponding to the end position of the PDSCH candidate resource existing in the downlink subslot and/or Or the symbol corresponding to the starting position of the PDSCH candidate resource existing in the downlink subslot determines the PDSCH candidate resource.

Optionally, according to the PDSCH candidate resources in the downlink subslot, the number of HARQ-ACK information in the downlink subslot is determined according to the number of non-time-domain overlapping maximum transmission PDSCH candidate resources in the downlink subslot, including: in the slot or in the downlink subslot Determine the PDSCH candidate resource with the earliest end position; the PDSCH candidate resource with the earliest end position and the PDSCH candidate resource with its overlapping time domain are divided into a candidate resource group; according to the number of candidate resource groups, determine the HARQ-ACK information in the downlink subslot The number of candidate resource groups corresponds to one or more HARQ-ACK information.

For example, each candidate resource group in the downlink subslot may correspond to one HARQ-ACK message, or may correspond to m HARQ-ACK messages, where m is a positive integer greater than 1. The specific number may be configured jointly by both sides of the base station and the UE. It may also be configured by the base station to the UE through signaling. Of course, other configurations are also within the protection scope of this embodiment. For example, a third-party entity configures the base station or UE.

The description will be made with reference to FIG. 2 in Embodiment 1, and descriptions that have already been described will not be repeated. In FIG. 2, in a downlink subslot corresponding to a semi-static HARQ-ACK codebook, the amount of HARQ-ACK information generated in the downlink subslot is determined as follows. When there are PDSCH candidate resources configured in the downlink subslot, HARQ-ACK information is generated, and the number of HARQ-ACK information is determined according to the maximum number of PDSCHs that can be transmitted in the non-time domain overlap in the subslot.

The HARQ-ACK is transmitted in the uplink subslot in FIG. 2, and the corresponding downlink subslot at this time includes the four downlink subslots in FIG. 2 (see the above description for specific calculation). In the first downlink subslot, there is no PDSCH candidate resource allocated. Therefore, the first downlink subslot is excluded from the downlink subslot that generates the semi-static HARQ-ACK codebook, that is, HARQ-ACK information is not generated for the downlink subslot. There is one allocated PDSCH candidate resource in the second downlink subslot and does not overlap with the time domain of other PDSCH candidate resources, so the second downlink subslot is included in the downlink subslot that generates the semi-static HARQ-ACK codebook, which is the downlink The subslot generates HARQ-ACK information. The third downlink subslot contains two allocated PDSCH candidate resources, which overlap with each other in the time domain. According to the time domain, there is no overlap. Only one PDSCH candidate resource can be transmitted at most. Therefore, the third downlink subslot contains semi-static HARQ- In the downlink subslot of the ACK codebook, HARQ-ACK information is generated for the downlink subslot. There are two allocated PDSCH candidate resources in the fourth downlink subslot, and they do not overlap with each other in time domain. The fourth downlink subslot does not overlap in time domain, and can transmit up to 2 PDSCH candidate resource transmissions, so the fourth downlink subslot contains In the downlink subslot that generates the semi-static HARQ-ACK codebook, the HARQ-ACK information is generated for the downlink subslot.

In this article, some of the features in the various embodiments can be shared without conflict. Including, but not limited to, for example, when the subslot is empty, HARQ-ACK information or NACK information is not generated for it, how to determine the subslot is empty, etc.

Example 3

In this embodiment, a device for determining a HARQ-ACK codebook is also provided. The device is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated. As used below, the term "module" may implement a combination of software and/or hardware that performs predetermined functions. Although the devices described in the following embodiments are preferably implemented in software, implementation of hardware or a combination of software and hardware is also possible and conceived.

FIG. 5 is a structural block diagram of a device for determining a HARQ-ACK codebook according to an embodiment of the present application. As shown in FIG. 5, the device includes:

The setting module 52 is configured to set multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group, and determine HARQ-ACK information corresponding to the candidate resource group;

The first determining module 54 is configured to determine a corresponding downlink sub-slot subslot for HARQ-ACK information and determine a semi-static HARQ-ACK codebook according to a preset rule.

It should be noted that the above modules can be implemented by software or hardware, and the latter can be implemented by the following methods, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.

Example 4

In this embodiment, a device for determining HARQ-ACK information is also provided. The device is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated. As used below, the term "module" may implement a combination of software and/or hardware that performs predetermined functions. Although the devices described in the following embodiments are preferably implemented in software, implementation of hardware or a combination of software and hardware is also possible and conceived.

Fig. 6 is a structural block diagram of a device for determining HARQ-ACK information according to an embodiment of the present application. As shown in Fig. 6, the device includes:

The second determining module 62 is configured to determine the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook;

The third determining module 64 is configured to determine the number of HARQ-ACK information in the downlink subslot according to the PDSCH candidate resources in the downlink subslot and the number of the maximum transmission PDSCH candidate resources that are not overlapped in the time domain in the downlink subslot;

The fourth determining module 66 is configured to use the sum of the number of HARQ-ACK information in the downlink subslot as the number of semi-static HARQ-ACK codebooks.

Example 4

The embodiment of the present application also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any of the foregoing method embodiments when running.

Optionally, in this embodiment, the above storage medium may be set to store a computer program for performing the following steps:

S1: Set multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group, and determine the HARQ-ACK information corresponding to the candidate resource group;

S2. According to a preset rule, determine a corresponding downlink subslot subslot for HARQ-ACK information and determine a semi-static HARQ-ACK codebook.

or,

S1, determining the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook;

S2, according to the PDSCH candidate resources in the downlink subslot, the number of HARQ-ACK information in the downlink subslot is determined according to the number of non-time-domain overlapping maximum transmission PDSCH candidate resources in the downlink subslot;

S3, taking the sum of the number of HARQ-ACK information in the downlink subslot as the number of semi-static HARQ-ACK codebooks.

Optionally, in this embodiment, the above storage medium may include, but is not limited to: a USB flash drive, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), Various media that can store computer programs, such as removable hard disks, magnetic disks, or optical disks.

An embodiment of the present application further provides an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to perform any of the steps in the above method embodiments.

Optionally, the electronic device may further include a transmission device and an input-output device, where the transmission device is connected to the processor, and the input-output device is connected to the processor.

Optionally, in this embodiment, the foregoing processor may be configured to perform the following steps through a computer program:

or,

S2: Determine the quantity of HARQ-ACK information in the downlink subslot according to the PDSCH candidate resources in the downlink subslot according to the maximum number of non-time-domain overlapping PDSCH candidate resources in the downlink subslot;

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not repeated in this embodiment.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of this application can be implemented by a general-purpose computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices Above, optionally, they can be implemented with program code executable by the computing device, so that they can be stored in the storage device to be executed by the computing device, and in some cases, can be in a different order than here The steps shown or described are performed, or they are made into individual integrated circuit modules respectively, or multiple modules or steps among them are made into a single integrated circuit module for implementation. In this way, the application is not limited to any specific combination of hardware and software.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles of this application shall be included in the scope of protection of this application.

Industrial applicability

Through this application, the problem that the semi-static HARQ-ACK codebook cannot be determined when the PDSCH candidate resources cross subslots is solved, and the effect of meeting the HARQ-ACK requirements of the PDSCH candidate resources across subslots is achieved.

Claims

A method for determining a HARQ-ACK codebook for hybrid automatic repeat request, including:

Set multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group, and determine the HARQ-ACK information corresponding to the candidate resource group; according to preset rules, The HARQ-ACK information determines the corresponding downlink sub-slot subslot and determines the semi-static HARQ-ACK codebook.
The method according to claim 1, configured to determine HARQ-ACK information corresponding to the candidate resource group, comprising:

For the candidate resource group in the downlink subslot, the location of the HARQ-ACK information corresponding to the candidate resource group in the sublot is determined according to the PDSCH candidate resource with the earliest ending position in the candidate resource group.
The method according to claim 1, wherein the HARQ-ACK information corresponding to the PDSCH candidate resource in the downlink subslot is located in the downlink subslot, comprising: determining the position in the downlink subslot according to the end position of the PDSCH candidate resource. The position of the HARQ-ACK information corresponding to the PDSCH candidate resource in the sublot.
The method according to claim 1, wherein the preset rule comprises:

The downlink subslot where the end position of the PDSCH candidate resource with the earliest end position in the candidate resource group is located as the downlink subslot corresponding to the HARQ-ACK information; or,

The downlink subslot where the start position of the PDSCH candidate resource with the latest start position in the candidate resource group is located is used as the downlink subslot corresponding to the HARQ-ACK information.
The method according to claim 1, wherein the preset rule further comprises:

The downlink subslot where the end position of the PDSCH candidate resource whose end position is the latest in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information;

or,

The downlink subslot where the end position of the PDSCH candidate resource with the earliest start position in the candidate resource group is used as the downlink subslot corresponding to the HARQ-ACK information;

or,

The downlink subslot where the end position of the PDSCH candidate resource with the latest start position in the candidate resource group is located is used as the downlink subslot corresponding to the HARQ-ACK information.
The method according to claim 1, wherein the preset rule further comprises:

The downlink subslot where the start position of the PDSCH candidate resource with the earliest end position in the candidate resource group is located as the downlink subslot corresponding to the HARQ-ACK information;

or,

The downlink subslot where the start position of the PDSCH candidate resource with the latest end position in the candidate resource group is located as the downlink subslot corresponding to the HARQ-ACK information;

or,

The downlink subslot where the start position of the PDSCH candidate resource with the earliest start position in the candidate resource group is located is used as the downlink subslot corresponding to the HARQ-ACK information.
The method according to any one of claims 1-6, configured to determine a semi-static HARQ-ACK codebook, comprising:

Calculate the HARQ-ACK information corresponding to the candidate resource group into the downlink subslot, and determine the HARQ-ACK information corresponding to the candidate resource group in the semi-static HARQ-ACK codebook in the order of the downlink subslot position.
The method according to any one of claims 1-7, configured to set multiple PDSCH candidate resources with overlapping time domains in a downlink time slot slot in the same candidate resource group, comprising:

Determine the PDSCH candidate resource with the earliest end position in the slot or the downlink subslot;

The PDSCH candidate resource with the earliest end position and the PDSCH candidate resource overlapping with its existing time domain are classified into one candidate resource group.
The method according to claim 8, wherein the method further comprises: in the slot or in the downlink subslot, determining that the end position of the PDSCH candidate resources other than the candidate resource group is the earliest PDSCH candidate resources;

The PDSCH candidate resource with the earliest end position and the PDSCH candidate resource overlapping with the PDSCH candidate resource in time domain are divided into a new candidate resource group until all PDSCH candidate resources in the slot or in the downlink subslot are divided into candidate resource groups.
The method according to any one of claims 1-7 for:

When the downlink subslot is empty, NACK information is filled into the semi-static HARQ-ACK codebook, or 0-bit HARQ-ACK information is determined in the downlink subslot.
The method according to claim 1, configured to determine that the downlink subslot is empty by one of the following methods:

Determining that the PDSCH candidate resource or the candidate resource group does not exist in the downlink subslot, and that the PDSCH candidate resource or the candidate resource group that is counted does not exist in the downlink subslot;

It is determined that the PDSCH candidate resource or the candidate resource group exists in the downlink subslot, but it is forbidden to be counted in the downlink subslot, and at the same time, the counted in the downlink subslot does not exist. PDSCH candidate resource or the candidate resource group.
The method according to claim 1, configured to determine that the PDSCH candidate resource or the candidate resource group exists in the downlink subslot, comprising:

Determining that there is a symbol corresponding to the end position of the PDSCH candidate resource in the downlink subslot, and/or determining that there is a symbol corresponding to the start position of the PDSCH candidate resource in the downlink subslot.
The method according to claim 1, configured to determine that the downlink subslot is non-empty by one of the following methods:

The candidate resource group included in the downlink subslot exists: or,

The PDSCH candidate resource or the candidate resource group exists in the downlink subslot, and at the same time, the PDSCH candidate resource or the candidate resource group is not counted in other subslots.
The method according to claim 7, wherein the method further comprises:

When candidate resource groups of other downlink subslots are included in the downlink subslot, the HARQ-ACK information corresponding to the included candidate resource group is determined in the downlink subslot, and it is determined that the HARQ-ACK information is in the Position in the semi-static HARQ-ACK codebook.
A method for determining HARQ-ACK information of a hybrid automatic repeat request includes:

Determine the physical downlink shared channel PDSCH candidate resources in the downlink sub-slot subslot corresponding to the semi-static HARQ-ACK codebook;

Determining the number of HARQ-ACK information in the downlink subslot according to the PDSCH candidate resources in the downlink subslot and the number of maximum transmission PDSCH candidate resources that do not overlap in the time domain in the downlink subslot;

The sum of the quantity of HARQ-ACK information in the downlink subslot is used as the quantity of the semi-static HARQ-ACK codebook.
The method according to claim 15, wherein determining the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook comprises:

The PDSCH candidate resource is determined according to the symbol corresponding to the end position of the PDSCH candidate resource existing in the downlink subslot and/or the symbol corresponding to the starting position of the PDSCH candidate resource existing in the downlink subslot.
The method according to claim 15, wherein according to the PDSCH candidate resources in the downlink subslot, the downlink subslot is determined according to the number of the maximum transmission PDSCH candidate resources that are not overlapped in the time domain in the downlink subslot. The number of HARQ-ACK messages, including:

Determine the PDSCH candidate resource with the earliest end position in the slot or the downlink subslot;

The PDSCH candidate resource with the earliest end position and the PDSCH candidate resource overlapping with its existing time domain are classified into one candidate resource group;

The number of HARQ-ACK information in the downlink subslot is determined according to the number of candidate resource groups, where the candidate resource group corresponds to one or more HARQ-ACK information.
The method according to claim 17, wherein the method further comprises: in the slot or in the downlink subslot, determining that the end position of the PDSCH candidate resources other than the candidate resource group is the earliest PDSCH candidate resources;

The PDSCH candidate resource with the earliest ending position and the PDSCH candidate resource overlapping with the PDSCH candidate resource in the time domain are divided into a new candidate resource group until all PDSCH candidate resources in the slot or in the downlink subslot are divided into candidate resource groups.
A device for determining HARQ-ACK codebook of hybrid automatic repeat request, including:

A setting module, configured to set multiple physical downlink shared channel PDSCH candidate resources with overlapping time domains in the downlink time slot slot in the same candidate resource group, and determine HARQ-ACK information corresponding to the candidate resource group;

The first determining module is configured to determine a corresponding downlink sub-slot subslot for the HARQ-ACK information and determine a semi-static HARQ-ACK codebook according to a preset rule.
A device for determining HARQ-ACK information of hybrid automatic repeat request, which is characterized in that it comprises:

The second determining module is configured to determine the physical downlink shared channel PDSCH candidate resource in the downlink subslot subslot corresponding to the semi-static HARQ-ACK codebook;

The third determining module is configured to determine the HARQ-ACK information in the downlink subslot according to the PDSCH candidate resources in the downlink subslot and the number of the maximum transmission PDSCH candidate resources that are not overlapping in the time domain in the downlink subslot Quantity

The fourth determining module is configured to use the sum of the quantity of HARQ-ACK information in the downlink subslot as the quantity of the semi-static HARQ-ACK codebook.
A storage medium in which a computer program is stored, wherein the computer program is configured to execute the method described in any one of claims 1-14, 15-18 when run.
An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute any one of claims 1-14, 15-18 The method described.